diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 026fe47..f8229ef 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -22,9 +22,10 @@ jobs:
uses: actions/setup-node@v3
with:
node-version: 16
- cache: npm
+ cache: yarn
- - name: Install NPM Dependencies and Build Extension
- run: |
- npm ci
- npm run compile
+ - name: Install Dependencies
+ run: yarn install --frozen-lockfile
+
+ - name: Build Extension
+ run: yarn compile
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 4d8e0f0..f833c13 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -20,12 +20,14 @@ jobs:
uses: actions/setup-node@v3
with:
node-version: 16
- cache: npm
+ cache: yarn
+
+ - name: Install Dependencies
+ run: yarn install --frozen-lockfile
+
+ - name: Check Linting
+ run: yarn lint
- - name: Install Dependencies and Check Formatting
- run: |
- npm ci
- npm run lint
formatting:
name: Formatting
runs-on: ubuntu-latest
@@ -37,9 +39,10 @@ jobs:
uses: actions/setup-node@v3
with:
node-version: 16
- cache: npm
+ cache: yarn
+
+ - name: Install Dependencies
+ run: yarn install --frozen-lockfile
- - name: Install Dependencies and Check Formatting
- run: |
- npm ci
- npm run format:check
+ - name: Check Linting
+ run: yarn format:check
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 5933b44..f427473 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -25,7 +25,10 @@ jobs:
uses: actions/setup-node@v3
with:
node-version: 16
- cache: npm
+ cache: yarn
+
+ - name: Install Dependencies
+ run: yarn install --frozen-lockfile
- name: Bump Version
env:
@@ -33,9 +36,8 @@ jobs:
run: |
git config --global user.name "OpenGOALBot"
git config --global user.email "OpenGOALBot@users.noreply.github.com"
- npm ci
- npx vsce package
- npx vsce publish ${{ github.event.inputs.bump }}
+ yarn vsce package
+ yarn vsce publish ${{ github.event.inputs.bump }}
git push
git push origin $(git tag --points-at HEAD)
diff --git a/decs.d.ts b/decs.d.ts
new file mode 100644
index 0000000..a0d708e
--- /dev/null
+++ b/decs.d.ts
@@ -0,0 +1 @@
+declare module "parinfer";
diff --git a/docs/parinfer-tester/assets/codemirror.css b/docs/parinfer-tester/assets/codemirror.css
new file mode 100644
index 0000000..e48bba4
--- /dev/null
+++ b/docs/parinfer-tester/assets/codemirror.css
@@ -0,0 +1,463 @@
+/* BASICS */
+
+.CodeMirror {
+ /* Set height, width, borders, and global font properties here */
+ font-family: monospace;
+ height: 300px;
+ color: black;
+}
+
+/* PADDING */
+
+.CodeMirror-lines {
+ padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre {
+ padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler,
+.CodeMirror-gutter-filler {
+ background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+
+.CodeMirror-gutters {
+ border-right: 1px solid #ddd;
+ background-color: #f7f7f7;
+ white-space: nowrap;
+}
+.CodeMirror-linenumbers {
+}
+.CodeMirror-linenumber {
+ padding: 0 3px 0 5px;
+ min-width: 20px;
+ text-align: right;
+ color: #999;
+ white-space: nowrap;
+}
+
+.CodeMirror-guttermarker {
+ color: black;
+}
+.CodeMirror-guttermarker-subtle {
+ color: #999;
+}
+
+/* CURSOR */
+
+.CodeMirror-cursor {
+ border-left: 1px solid black;
+ border-right: none;
+ width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+ border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+ width: auto;
+ border: 0;
+ background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+ z-index: 1;
+}
+
+.cm-animate-fat-cursor {
+ width: auto;
+ border: 0;
+ -webkit-animation: blink 1.06s steps(1) infinite;
+ -moz-animation: blink 1.06s steps(1) infinite;
+ animation: blink 1.06s steps(1) infinite;
+ background-color: #7e7;
+}
+@-moz-keyframes blink {
+ 0% {
+ }
+ 50% {
+ background-color: transparent;
+ }
+ 100% {
+ }
+}
+@-webkit-keyframes blink {
+ 0% {
+ }
+ 50% {
+ background-color: transparent;
+ }
+ 100% {
+ }
+}
+@keyframes blink {
+ 0% {
+ }
+ 50% {
+ background-color: transparent;
+ }
+ 100% {
+ }
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {
+}
+
+.cm-tab {
+ display: inline-block;
+ text-decoration: inherit;
+}
+
+.CodeMirror-ruler {
+ border-left: 1px solid #ccc;
+ position: absolute;
+}
+
+/* DEFAULT THEME */
+
+.cm-s-default .cm-header {
+ color: blue;
+}
+.cm-s-default .cm-quote {
+ color: #090;
+}
+.cm-negative {
+ color: #d44;
+}
+.cm-positive {
+ color: #292;
+}
+.cm-header,
+.cm-strong {
+ font-weight: bold;
+}
+.cm-em {
+ font-style: italic;
+}
+.cm-link {
+ text-decoration: underline;
+}
+.cm-strikethrough {
+ text-decoration: line-through;
+}
+
+.cm-s-default .cm-keyword {
+ color: #708;
+}
+.cm-s-default .cm-atom {
+ color: #219;
+}
+.cm-s-default .cm-number {
+ color: #164;
+}
+.cm-s-default .cm-def {
+ color: #00f;
+}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {
+}
+.cm-s-default .cm-variable-2 {
+ color: #05a;
+}
+.cm-s-default .cm-variable-3 {
+ color: #085;
+}
+.cm-s-default .cm-comment {
+ color: #a50;
+}
+.cm-s-default .cm-string {
+ color: #a11;
+}
+.cm-s-default .cm-string-2 {
+ color: #f50;
+}
+.cm-s-default .cm-meta {
+ color: #555;
+}
+.cm-s-default .cm-qualifier {
+ color: #555;
+}
+.cm-s-default .cm-builtin {
+ color: #30a;
+}
+.cm-s-default .cm-bracket {
+ color: #997;
+}
+.cm-s-default .cm-tag {
+ color: #170;
+}
+.cm-s-default .cm-attribute {
+ color: #00c;
+}
+.cm-s-default .cm-hr {
+ color: #999;
+}
+.cm-s-default .cm-link {
+ color: #00c;
+}
+
+.cm-s-default .cm-error {
+ color: #f00;
+}
+.cm-invalidchar {
+ color: #f00;
+}
+
+.CodeMirror-composing {
+ border-bottom: 2px solid;
+}
+
+/* Default styles for common addons */
+
+/* Parinfer edit: don't change the colors, we just want to style the background
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
+*/
+.CodeMirror-matchingtag {
+ background: rgba(255, 150, 0, 0.3);
+}
+.CodeMirror-activeline-background {
+ background: #e8f2ff;
+}
+
+/* STOP */
+
+/* The rest of this file contains styles related to the mechanics of
+ the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+ position: relative;
+ overflow: hidden;
+ background: white;
+}
+
+.CodeMirror-scroll {
+ overflow: scroll !important; /* Things will break if this is overridden */
+ /* 30px is the magic margin used to hide the element's real scrollbars */
+ /* See overflow: hidden in .CodeMirror */
+ margin-bottom: -30px;
+ margin-right: -30px;
+ padding-bottom: 30px;
+ height: 100%;
+ outline: none; /* Prevent dragging from highlighting the element */
+ position: relative;
+}
+.CodeMirror-sizer {
+ position: relative;
+ border-right: 30px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+ before actuall scrolling happens, thus preventing shaking and
+ flickering artifacts. */
+.CodeMirror-vscrollbar,
+.CodeMirror-hscrollbar,
+.CodeMirror-scrollbar-filler,
+.CodeMirror-gutter-filler {
+ position: absolute;
+ z-index: 6;
+ display: none;
+}
+.CodeMirror-vscrollbar {
+ right: 0;
+ top: 0;
+ overflow-x: hidden;
+ overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+ bottom: 0;
+ left: 0;
+ overflow-y: hidden;
+ overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+ right: 0;
+ bottom: 0;
+}
+.CodeMirror-gutter-filler {
+ left: 0;
+ bottom: 0;
+}
+
+.CodeMirror-gutters {
+ position: absolute;
+ left: 0;
+ top: 0;
+ z-index: 3;
+}
+.CodeMirror-gutter {
+ white-space: normal;
+ height: 100%;
+ display: inline-block;
+ margin-bottom: -30px;
+ /* Hack to make IE7 behave */
+ *zoom: 1;
+ *display: inline;
+}
+.CodeMirror-gutter-wrapper {
+ position: absolute;
+ z-index: 4;
+ background: none !important;
+ border: none !important;
+}
+.CodeMirror-gutter-background {
+ position: absolute;
+ top: 0;
+ bottom: 0;
+ z-index: 4;
+}
+.CodeMirror-gutter-elt {
+ position: absolute;
+ cursor: default;
+ z-index: 4;
+}
+.CodeMirror-gutter-wrapper {
+ -webkit-user-select: none;
+ -moz-user-select: none;
+ user-select: none;
+}
+
+.CodeMirror-lines {
+ cursor: text;
+ min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre {
+ /* Reset some styles that the rest of the page might have set */
+ -moz-border-radius: 0;
+ -webkit-border-radius: 0;
+ border-radius: 0;
+ border-width: 0;
+ background: transparent;
+ font-family: inherit;
+ font-size: inherit;
+ margin: 0;
+ white-space: pre;
+ word-wrap: normal;
+ line-height: inherit;
+ color: inherit;
+ z-index: 2;
+ position: relative;
+ overflow: visible;
+ -webkit-tap-highlight-color: transparent;
+}
+.CodeMirror-wrap pre {
+ word-wrap: break-word;
+ white-space: pre-wrap;
+ word-break: normal;
+}
+
+.CodeMirror-linebackground {
+ position: absolute;
+ left: 0;
+ right: 0;
+ top: 0;
+ bottom: 0;
+ z-index: 0;
+}
+
+.CodeMirror-linewidget {
+ position: relative;
+ z-index: 2;
+ overflow: auto;
+}
+
+.CodeMirror-widget {
+}
+
+.CodeMirror-code {
+ outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+ -moz-box-sizing: content-box;
+ box-sizing: content-box;
+}
+
+.CodeMirror-measure {
+ position: absolute;
+ width: 100%;
+ height: 0;
+ overflow: hidden;
+ visibility: hidden;
+}
+
+.CodeMirror-cursor {
+ position: absolute;
+}
+.CodeMirror-measure pre {
+ position: static;
+}
+
+div.CodeMirror-cursors {
+ visibility: hidden;
+ position: relative;
+ z-index: 3;
+}
+div.CodeMirror-dragcursors {
+ visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+ visibility: visible;
+}
+
+.CodeMirror-selected {
+ background: #d9d9d9;
+}
+.CodeMirror-focused .CodeMirror-selected {
+ background: #d7d4f0;
+}
+.CodeMirror-crosshair {
+ cursor: crosshair;
+}
+.CodeMirror-line::selection,
+.CodeMirror-line > span::selection,
+.CodeMirror-line > span > span::selection {
+ background: #d7d4f0;
+}
+.CodeMirror-line::-moz-selection,
+.CodeMirror-line > span::-moz-selection,
+.CodeMirror-line > span > span::-moz-selection {
+ background: #d7d4f0;
+}
+
+.cm-searching {
+ background: #ffa;
+ background: rgba(255, 255, 0, 0.4);
+}
+
+/* IE7 hack to prevent it from returning funny offsetTops on the spans */
+.CodeMirror span {
+ *vertical-align: text-bottom;
+}
+
+/* Used to force a border model for a node */
+.cm-force-border {
+ padding-right: 0.1px;
+}
+
+@media print {
+ /* Hide the cursor when printing */
+ .CodeMirror div.CodeMirror-cursors {
+ visibility: hidden;
+ }
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after {
+ content: "";
+}
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext {
+ background: none;
+}
diff --git a/docs/parinfer-tester/assets/codemirror.js b/docs/parinfer-tester/assets/codemirror.js
new file mode 100644
index 0000000..1215fd8
--- /dev/null
+++ b/docs/parinfer-tester/assets/codemirror.js
@@ -0,0 +1,11556 @@
+/*
+ * Some modifications made for Parinfer. Search PARINFER EDIT below
+ */
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function (mod) {
+ if (typeof exports == "object" && typeof module == "object")
+ // CommonJS
+ module.exports = mod();
+ else if (typeof define == "function" && define.amd)
+ // AMD
+ return define([], mod);
+ // Plain browser env
+ else this.CodeMirror = mod();
+})(function () {
+ "use strict";
+
+ // BROWSER SNIFFING
+
+ // Kludges for bugs and behavior differences that can't be feature
+ // detected are enabled based on userAgent etc sniffing.
+
+ var gecko = /gecko\/\d/i.test(navigator.userAgent);
+ var ie_upto10 = /MSIE \d/.test(navigator.userAgent);
+ var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(
+ navigator.userAgent
+ );
+ var ie = ie_upto10 || ie_11up;
+ var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
+ var webkit = /WebKit\//.test(navigator.userAgent);
+ var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
+ var chrome = /Chrome\//.test(navigator.userAgent);
+ var presto = /Opera\//.test(navigator.userAgent);
+ var safari = /Apple Computer/.test(navigator.vendor);
+ var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(
+ navigator.userAgent
+ );
+ var phantom = /PhantomJS/.test(navigator.userAgent);
+
+ var ios =
+ /AppleWebKit/.test(navigator.userAgent) &&
+ /Mobile\/\w+/.test(navigator.userAgent);
+ // This is woefully incomplete. Suggestions for alternative methods welcome.
+ var mobile =
+ ios ||
+ /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(
+ navigator.userAgent
+ );
+ var mac = ios || /Mac/.test(navigator.platform);
+ var windows = /win/i.test(navigator.platform);
+
+ var presto_version =
+ presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
+ if (presto_version) presto_version = Number(presto_version[1]);
+ if (presto_version && presto_version >= 15) {
+ presto = false;
+ webkit = true;
+ }
+ // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+ var flipCtrlCmd =
+ mac &&
+ (qtwebkit ||
+ (presto && (presto_version == null || presto_version < 12.11)));
+ var captureRightClick = gecko || (ie && ie_version >= 9);
+
+ // Optimize some code when these features are not used.
+ var sawReadOnlySpans = false,
+ sawCollapsedSpans = false;
+
+ // EDITOR CONSTRUCTOR
+
+ // A CodeMirror instance represents an editor. This is the object
+ // that user code is usually dealing with.
+
+ function CodeMirror(place, options) {
+ if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
+
+ this.options = options = options ? copyObj(options) : {};
+ // Determine effective options based on given values and defaults.
+ copyObj(defaults, options, false);
+ setGuttersForLineNumbers(options);
+
+ var doc = options.value;
+ if (typeof doc == "string")
+ doc = new Doc(doc, options.mode, null, options.lineSeparator);
+ this.doc = doc;
+
+ var input = new CodeMirror.inputStyles[options.inputStyle](this);
+ var display = (this.display = new Display(place, doc, input));
+ display.wrapper.CodeMirror = this;
+ updateGutters(this);
+ themeChanged(this);
+ if (options.lineWrapping)
+ this.display.wrapper.className += " CodeMirror-wrap";
+ if (options.autofocus && !mobile) display.input.focus();
+ initScrollbars(this);
+
+ this.state = {
+ keyMaps: [], // stores maps added by addKeyMap
+ overlays: [], // highlighting overlays, as added by addOverlay
+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
+ overwrite: false,
+ delayingBlurEvent: false,
+ focused: false,
+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+ pasteIncoming: false,
+ cutIncoming: false, // help recognize paste/cut edits in input.poll
+ selectingText: false,
+ draggingText: false,
+ highlight: new Delayed(), // stores highlight worker timeout
+ keySeq: null, // Unfinished key sequence
+ specialChars: null,
+ };
+
+ var cm = this;
+
+ // Override magic textarea content restore that IE sometimes does
+ // on our hidden textarea on reload
+ if (ie && ie_version < 11)
+ setTimeout(function () {
+ cm.display.input.reset(true);
+ }, 20);
+
+ registerEventHandlers(this);
+ ensureGlobalHandlers();
+
+ startOperation(this);
+ this.curOp.forceUpdate = true;
+ attachDoc(this, doc);
+
+ if ((options.autofocus && !mobile) || cm.hasFocus())
+ setTimeout(bind(onFocus, this), 20);
+ else onBlur(this);
+
+ for (var opt in optionHandlers)
+ if (optionHandlers.hasOwnProperty(opt))
+ optionHandlers[opt](this, options[opt], Init);
+ maybeUpdateLineNumberWidth(this);
+ if (options.finishInit) options.finishInit(this);
+ for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
+ endOperation(this);
+ // Suppress optimizelegibility in Webkit, since it breaks text
+ // measuring on line wrapping boundaries.
+ if (
+ webkit &&
+ options.lineWrapping &&
+ getComputedStyle(display.lineDiv).textRendering == "optimizelegibility"
+ )
+ display.lineDiv.style.textRendering = "auto";
+ }
+
+ // DISPLAY CONSTRUCTOR
+
+ // The display handles the DOM integration, both for input reading
+ // and content drawing. It holds references to DOM nodes and
+ // display-related state.
+
+ function Display(place, doc, input) {
+ var d = this;
+ this.input = input;
+
+ // Covers bottom-right square when both scrollbars are present.
+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+ d.scrollbarFiller.setAttribute("cm-not-content", "true");
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
+ // and h scrollbar is present.
+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+ d.gutterFiller.setAttribute("cm-not-content", "true");
+ // Will contain the actual code, positioned to cover the viewport.
+ d.lineDiv = elt("div", null, "CodeMirror-code");
+ // Elements are added to these to represent selection and cursors.
+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+ // A visibility: hidden element used to find the size of things.
+ d.measure = elt("div", null, "CodeMirror-measure");
+ // When lines outside of the viewport are measured, they are drawn in this.
+ d.lineMeasure = elt("div", null, "CodeMirror-measure");
+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
+ d.lineSpace = elt(
+ "div",
+ [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+ null,
+ "position: relative; outline: none"
+ );
+ // Moved around its parent to cover visible view.
+ d.mover = elt(
+ "div",
+ [elt("div", [d.lineSpace], "CodeMirror-lines")],
+ null,
+ "position: relative"
+ );
+ // Set to the height of the document, allowing scrolling.
+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+ d.sizerWidth = null;
+ // Behavior of elts with overflow: auto and padding is
+ // inconsistent across browsers. This is used to ensure the
+ // scrollable area is big enough.
+ d.heightForcer = elt(
+ "div",
+ null,
+ null,
+ "position: absolute; height: " + scrollerGap + "px; width: 1px;"
+ );
+ // Will contain the gutters, if any.
+ d.gutters = elt("div", null, "CodeMirror-gutters");
+ d.lineGutter = null;
+ // Actual scrollable element.
+ d.scroller = elt(
+ "div",
+ [d.sizer, d.heightForcer, d.gutters],
+ "CodeMirror-scroll"
+ );
+ d.scroller.setAttribute("tabIndex", "-1");
+ // The element in which the editor lives.
+ d.wrapper = elt(
+ "div",
+ [d.scrollbarFiller, d.gutterFiller, d.scroller],
+ "CodeMirror"
+ );
+
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+ if (ie && ie_version < 8) {
+ d.gutters.style.zIndex = -1;
+ d.scroller.style.paddingRight = 0;
+ }
+ if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
+
+ if (place) {
+ if (place.appendChild) place.appendChild(d.wrapper);
+ else place(d.wrapper);
+ }
+
+ // Current rendered range (may be bigger than the view window).
+ d.viewFrom = d.viewTo = doc.first;
+ d.reportedViewFrom = d.reportedViewTo = doc.first;
+ // Information about the rendered lines.
+ d.view = [];
+ d.renderedView = null;
+ // Holds info about a single rendered line when it was rendered
+ // for measurement, while not in view.
+ d.externalMeasured = null;
+ // Empty space (in pixels) above the view
+ d.viewOffset = 0;
+ d.lastWrapHeight = d.lastWrapWidth = 0;
+ d.updateLineNumbers = null;
+
+ d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+ d.scrollbarsClipped = false;
+
+ // Used to only resize the line number gutter when necessary (when
+ // the amount of lines crosses a boundary that makes its width change)
+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+ // Set to true when a non-horizontal-scrolling line widget is
+ // added. As an optimization, line widget aligning is skipped when
+ // this is false.
+ d.alignWidgets = false;
+
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ d.maxLine = null;
+ d.maxLineLength = 0;
+ d.maxLineChanged = false;
+
+ // Used for measuring wheel scrolling granularity
+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+ // True when shift is held down.
+ d.shift = false;
+
+ // Used to track whether anything happened since the context menu
+ // was opened.
+ d.selForContextMenu = null;
+
+ d.activeTouch = null;
+
+ input.init(d);
+ }
+
+ // STATE UPDATES
+
+ // Used to get the editor into a consistent state again when options change.
+
+ function loadMode(cm) {
+ cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
+ resetModeState(cm);
+ }
+
+ function resetModeState(cm) {
+ cm.doc.iter(function (line) {
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ });
+ cm.doc.frontier = cm.doc.first;
+ startWorker(cm, 100);
+ cm.state.modeGen++;
+ if (cm.curOp) regChange(cm);
+ }
+
+ function wrappingChanged(cm) {
+ if (cm.options.lineWrapping) {
+ addClass(cm.display.wrapper, "CodeMirror-wrap");
+ cm.display.sizer.style.minWidth = "";
+ cm.display.sizerWidth = null;
+ } else {
+ rmClass(cm.display.wrapper, "CodeMirror-wrap");
+ findMaxLine(cm);
+ }
+ estimateLineHeights(cm);
+ regChange(cm);
+ clearCaches(cm);
+ setTimeout(function () {
+ updateScrollbars(cm);
+ }, 100);
+ }
+
+ // Returns a function that estimates the height of a line, to use as
+ // first approximation until the line becomes visible (and is thus
+ // properly measurable).
+ function estimateHeight(cm) {
+ var th = textHeight(cm.display),
+ wrapping = cm.options.lineWrapping;
+ var perLine =
+ wrapping &&
+ Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+ return function (line) {
+ if (lineIsHidden(cm.doc, line)) return 0;
+
+ var widgetsHeight = 0;
+ if (line.widgets)
+ for (var i = 0; i < line.widgets.length; i++) {
+ if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
+ }
+
+ if (wrapping)
+ return (
+ widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th
+ );
+ else return widgetsHeight + th;
+ };
+ }
+
+ function estimateLineHeights(cm) {
+ var doc = cm.doc,
+ est = estimateHeight(cm);
+ doc.iter(function (line) {
+ var estHeight = est(line);
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ });
+ }
+
+ function themeChanged(cm) {
+ cm.display.wrapper.className =
+ cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+ cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+ clearCaches(cm);
+ }
+
+ function guttersChanged(cm) {
+ updateGutters(cm);
+ regChange(cm);
+ setTimeout(function () {
+ alignHorizontally(cm);
+ }, 20);
+ }
+
+ // Rebuild the gutter elements, ensure the margin to the left of the
+ // code matches their width.
+ function updateGutters(cm) {
+ var gutters = cm.display.gutters,
+ specs = cm.options.gutters;
+ removeChildren(gutters);
+ for (var i = 0; i < specs.length; ++i) {
+ var gutterClass = specs[i];
+ var gElt = gutters.appendChild(
+ elt("div", null, "CodeMirror-gutter " + gutterClass)
+ );
+ if (gutterClass == "CodeMirror-linenumbers") {
+ cm.display.lineGutter = gElt;
+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
+ }
+ }
+ gutters.style.display = i ? "" : "none";
+ updateGutterSpace(cm);
+ }
+
+ function updateGutterSpace(cm) {
+ var width = cm.display.gutters.offsetWidth;
+ cm.display.sizer.style.marginLeft = width + "px";
+ }
+
+ // Compute the character length of a line, taking into account
+ // collapsed ranges (see markText) that might hide parts, and join
+ // other lines onto it.
+ function lineLength(line) {
+ if (line.height == 0) return 0;
+ var len = line.text.length,
+ merged,
+ cur = line;
+ while ((merged = collapsedSpanAtStart(cur))) {
+ var found = merged.find(0, true);
+ cur = found.from.line;
+ len += found.from.ch - found.to.ch;
+ }
+ cur = line;
+ while ((merged = collapsedSpanAtEnd(cur))) {
+ var found = merged.find(0, true);
+ len -= cur.text.length - found.from.ch;
+ cur = found.to.line;
+ len += cur.text.length - found.to.ch;
+ }
+ return len;
+ }
+
+ // Find the longest line in the document.
+ function findMaxLine(cm) {
+ var d = cm.display,
+ doc = cm.doc;
+ d.maxLine = getLine(doc, doc.first);
+ d.maxLineLength = lineLength(d.maxLine);
+ d.maxLineChanged = true;
+ doc.iter(function (line) {
+ var len = lineLength(line);
+ if (len > d.maxLineLength) {
+ d.maxLineLength = len;
+ d.maxLine = line;
+ }
+ });
+ }
+
+ // Make sure the gutters options contains the element
+ // "CodeMirror-linenumbers" when the lineNumbers option is true.
+ function setGuttersForLineNumbers(options) {
+ var found = indexOf(options.gutters, "CodeMirror-linenumbers");
+ if (found == -1 && options.lineNumbers) {
+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
+ } else if (found > -1 && !options.lineNumbers) {
+ options.gutters = options.gutters.slice(0);
+ options.gutters.splice(found, 1);
+ }
+ }
+
+ // SCROLLBARS
+
+ // Prepare DOM reads needed to update the scrollbars. Done in one
+ // shot to minimize update/measure roundtrips.
+ function measureForScrollbars(cm) {
+ var d = cm.display,
+ gutterW = d.gutters.offsetWidth;
+ var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+ return {
+ clientHeight: d.scroller.clientHeight,
+ viewHeight: d.wrapper.clientHeight,
+ scrollWidth: d.scroller.scrollWidth,
+ clientWidth: d.scroller.clientWidth,
+ viewWidth: d.wrapper.clientWidth,
+ barLeft: cm.options.fixedGutter ? gutterW : 0,
+ docHeight: docH,
+ scrollHeight: docH + scrollGap(cm) + d.barHeight,
+ nativeBarWidth: d.nativeBarWidth,
+ gutterWidth: gutterW,
+ };
+ }
+
+ function NativeScrollbars(place, scroll, cm) {
+ this.cm = cm;
+ var vert = (this.vert = elt(
+ "div",
+ [elt("div", null, null, "min-width: 1px")],
+ "CodeMirror-vscrollbar"
+ ));
+ var horiz = (this.horiz = elt(
+ "div",
+ [elt("div", null, null, "height: 100%; min-height: 1px")],
+ "CodeMirror-hscrollbar"
+ ));
+ place(vert);
+ place(horiz);
+
+ on(vert, "scroll", function () {
+ if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
+ });
+ on(horiz, "scroll", function () {
+ if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
+ });
+
+ this.checkedOverlay = false;
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+ if (ie && ie_version < 8)
+ this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
+ }
+
+ NativeScrollbars.prototype = copyObj(
+ {
+ update: function (measure) {
+ var needsH = measure.scrollWidth > measure.clientWidth + 1;
+ var needsV = measure.scrollHeight > measure.clientHeight + 1;
+ var sWidth = measure.nativeBarWidth;
+
+ if (needsV) {
+ this.vert.style.display = "block";
+ this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+ var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+ // A bug in IE8 can cause this value to be negative, so guard it.
+ this.vert.firstChild.style.height =
+ Math.max(
+ 0,
+ measure.scrollHeight - measure.clientHeight + totalHeight
+ ) + "px";
+ } else {
+ this.vert.style.display = "";
+ this.vert.firstChild.style.height = "0";
+ }
+
+ if (needsH) {
+ this.horiz.style.display = "block";
+ this.horiz.style.right = needsV ? sWidth + "px" : "0";
+ this.horiz.style.left = measure.barLeft + "px";
+ var totalWidth =
+ measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+ this.horiz.firstChild.style.width =
+ measure.scrollWidth - measure.clientWidth + totalWidth + "px";
+ } else {
+ this.horiz.style.display = "";
+ this.horiz.firstChild.style.width = "0";
+ }
+
+ if (!this.checkedOverlay && measure.clientHeight > 0) {
+ if (sWidth == 0) this.overlayHack();
+ this.checkedOverlay = true;
+ }
+
+ return { right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0 };
+ },
+ setScrollLeft: function (pos) {
+ if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
+ },
+ setScrollTop: function (pos) {
+ if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
+ },
+ overlayHack: function () {
+ var w = mac && !mac_geMountainLion ? "12px" : "18px";
+ this.horiz.style.minHeight = this.vert.style.minWidth = w;
+ var self = this;
+ var barMouseDown = function (e) {
+ if (e_target(e) != self.vert && e_target(e) != self.horiz)
+ operation(self.cm, onMouseDown)(e);
+ };
+ on(this.vert, "mousedown", barMouseDown);
+ on(this.horiz, "mousedown", barMouseDown);
+ },
+ clear: function () {
+ var parent = this.horiz.parentNode;
+ parent.removeChild(this.horiz);
+ parent.removeChild(this.vert);
+ },
+ },
+ NativeScrollbars.prototype
+ );
+
+ function NullScrollbars() {}
+
+ NullScrollbars.prototype = copyObj(
+ {
+ update: function () {
+ return { bottom: 0, right: 0 };
+ },
+ setScrollLeft: function () {},
+ setScrollTop: function () {},
+ clear: function () {},
+ },
+ NullScrollbars.prototype
+ );
+
+ CodeMirror.scrollbarModel = {
+ native: NativeScrollbars,
+ null: NullScrollbars,
+ };
+
+ function initScrollbars(cm) {
+ if (cm.display.scrollbars) {
+ cm.display.scrollbars.clear();
+ if (cm.display.scrollbars.addClass)
+ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ cm.display.scrollbars = new CodeMirror.scrollbarModel[
+ cm.options.scrollbarStyle
+ ](
+ function (node) {
+ cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+ // Prevent clicks in the scrollbars from killing focus
+ on(node, "mousedown", function () {
+ if (cm.state.focused)
+ setTimeout(function () {
+ cm.display.input.focus();
+ }, 0);
+ });
+ node.setAttribute("cm-not-content", "true");
+ },
+ function (pos, axis) {
+ if (axis == "horizontal") setScrollLeft(cm, pos);
+ else setScrollTop(cm, pos);
+ },
+ cm
+ );
+ if (cm.display.scrollbars.addClass)
+ addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ function updateScrollbars(cm, measure) {
+ if (!measure) measure = measureForScrollbars(cm);
+ var startWidth = cm.display.barWidth,
+ startHeight = cm.display.barHeight;
+ updateScrollbarsInner(cm, measure);
+ for (
+ var i = 0;
+ (i < 4 && startWidth != cm.display.barWidth) ||
+ startHeight != cm.display.barHeight;
+ i++
+ ) {
+ if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+ updateHeightsInViewport(cm);
+ updateScrollbarsInner(cm, measureForScrollbars(cm));
+ startWidth = cm.display.barWidth;
+ startHeight = cm.display.barHeight;
+ }
+ }
+
+ // Re-synchronize the fake scrollbars with the actual size of the
+ // content.
+ function updateScrollbarsInner(cm, measure) {
+ var d = cm.display;
+ var sizes = d.scrollbars.update(measure);
+
+ d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+ d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+
+ if (sizes.right && sizes.bottom) {
+ d.scrollbarFiller.style.display = "block";
+ d.scrollbarFiller.style.height = sizes.bottom + "px";
+ d.scrollbarFiller.style.width = sizes.right + "px";
+ } else d.scrollbarFiller.style.display = "";
+ if (
+ sizes.bottom &&
+ cm.options.coverGutterNextToScrollbar &&
+ cm.options.fixedGutter
+ ) {
+ d.gutterFiller.style.display = "block";
+ d.gutterFiller.style.height = sizes.bottom + "px";
+ d.gutterFiller.style.width = measure.gutterWidth + "px";
+ } else d.gutterFiller.style.display = "";
+ }
+
+ // Compute the lines that are visible in a given viewport (defaults
+ // the the current scroll position). viewport may contain top,
+ // height, and ensure (see op.scrollToPos) properties.
+ function visibleLines(display, doc, viewport) {
+ var top =
+ viewport && viewport.top != null
+ ? Math.max(0, viewport.top)
+ : display.scroller.scrollTop;
+ top = Math.floor(top - paddingTop(display));
+ var bottom =
+ viewport && viewport.bottom != null
+ ? viewport.bottom
+ : top + display.wrapper.clientHeight;
+
+ var from = lineAtHeight(doc, top),
+ to = lineAtHeight(doc, bottom);
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+ // forces those lines into the viewport (if possible).
+ if (viewport && viewport.ensure) {
+ var ensureFrom = viewport.ensure.from.line,
+ ensureTo = viewport.ensure.to.line;
+ if (ensureFrom < from) {
+ from = ensureFrom;
+ to = lineAtHeight(
+ doc,
+ heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight
+ );
+ } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+ from = lineAtHeight(
+ doc,
+ heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight
+ );
+ to = ensureTo;
+ }
+ }
+ return { from: from, to: Math.max(to, from + 1) };
+ }
+
+ // LINE NUMBERS
+
+ // Re-align line numbers and gutter marks to compensate for
+ // horizontal scrolling.
+ function alignHorizontally(cm) {
+ var display = cm.display,
+ view = display.view;
+ if (
+ !display.alignWidgets &&
+ (!display.gutters.firstChild || !cm.options.fixedGutter)
+ )
+ return;
+ var comp =
+ compensateForHScroll(display) -
+ display.scroller.scrollLeft +
+ cm.doc.scrollLeft;
+ var gutterW = display.gutters.offsetWidth,
+ left = comp + "px";
+ for (var i = 0; i < view.length; i++)
+ if (!view[i].hidden) {
+ if (cm.options.fixedGutter && view[i].gutter)
+ view[i].gutter.style.left = left;
+ var align = view[i].alignable;
+ if (align)
+ for (var j = 0; j < align.length; j++) align[j].style.left = left;
+ }
+ if (cm.options.fixedGutter)
+ display.gutters.style.left = comp + gutterW + "px";
+ }
+
+ // Used to ensure that the line number gutter is still the right
+ // size for the current document size. Returns true when an update
+ // is needed.
+ function maybeUpdateLineNumberWidth(cm) {
+ if (!cm.options.lineNumbers) return false;
+ var doc = cm.doc,
+ last = lineNumberFor(cm.options, doc.first + doc.size - 1),
+ display = cm.display;
+ if (last.length != display.lineNumChars) {
+ var test = display.measure.appendChild(
+ elt(
+ "div",
+ [elt("div", last)],
+ "CodeMirror-linenumber CodeMirror-gutter-elt"
+ )
+ );
+ var innerW = test.firstChild.offsetWidth,
+ padding = test.offsetWidth - innerW;
+ display.lineGutter.style.width = "";
+ display.lineNumInnerWidth =
+ Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+ display.lineNumWidth = display.lineNumInnerWidth + padding;
+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+ display.lineGutter.style.width = display.lineNumWidth + "px";
+ updateGutterSpace(cm);
+ return true;
+ }
+ return false;
+ }
+
+ function lineNumberFor(options, i) {
+ return String(options.lineNumberFormatter(i + options.firstLineNumber));
+ }
+
+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+ // but using getBoundingClientRect to get a sub-pixel-accurate
+ // result.
+ function compensateForHScroll(display) {
+ return (
+ display.scroller.getBoundingClientRect().left -
+ display.sizer.getBoundingClientRect().left
+ );
+ }
+
+ // DISPLAY DRAWING
+
+ function DisplayUpdate(cm, viewport, force) {
+ var display = cm.display;
+
+ this.viewport = viewport;
+ // Store some values that we'll need later (but don't want to force a relayout for)
+ this.visible = visibleLines(display, cm.doc, viewport);
+ this.editorIsHidden = !display.wrapper.offsetWidth;
+ this.wrapperHeight = display.wrapper.clientHeight;
+ this.wrapperWidth = display.wrapper.clientWidth;
+ this.oldDisplayWidth = displayWidth(cm);
+ this.force = force;
+ this.dims = getDimensions(cm);
+ this.events = [];
+ }
+
+ DisplayUpdate.prototype.signal = function (emitter, type) {
+ if (hasHandler(emitter, type)) this.events.push(arguments);
+ };
+ DisplayUpdate.prototype.finish = function () {
+ for (var i = 0; i < this.events.length; i++)
+ signal.apply(null, this.events[i]);
+ };
+
+ function maybeClipScrollbars(cm) {
+ var display = cm.display;
+ if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+ display.nativeBarWidth =
+ display.scroller.offsetWidth - display.scroller.clientWidth;
+ display.heightForcer.style.height = scrollGap(cm) + "px";
+ display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+ display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+ display.scrollbarsClipped = true;
+ }
+ }
+
+ // Does the actual updating of the line display. Bails out
+ // (returning false) when there is nothing to be done and forced is
+ // false.
+ function updateDisplayIfNeeded(cm, update) {
+ var display = cm.display,
+ doc = cm.doc;
+
+ if (update.editorIsHidden) {
+ resetView(cm);
+ return false;
+ }
+
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (
+ !update.force &&
+ update.visible.from >= display.viewFrom &&
+ update.visible.to <= display.viewTo &&
+ (display.updateLineNumbers == null ||
+ display.updateLineNumbers >= display.viewTo) &&
+ display.renderedView == display.view &&
+ countDirtyView(cm) == 0
+ )
+ return false;
+
+ if (maybeUpdateLineNumberWidth(cm)) {
+ resetView(cm);
+ update.dims = getDimensions(cm);
+ }
+
+ // Compute a suitable new viewport (from & to)
+ var end = doc.first + doc.size;
+ var from = Math.max(
+ update.visible.from - cm.options.viewportMargin,
+ doc.first
+ );
+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+ if (display.viewFrom < from && from - display.viewFrom < 20)
+ from = Math.max(doc.first, display.viewFrom);
+ if (display.viewTo > to && display.viewTo - to < 20)
+ to = Math.min(end, display.viewTo);
+ if (sawCollapsedSpans) {
+ from = visualLineNo(cm.doc, from);
+ to = visualLineEndNo(cm.doc, to);
+ }
+
+ var different =
+ from != display.viewFrom ||
+ to != display.viewTo ||
+ display.lastWrapHeight != update.wrapperHeight ||
+ display.lastWrapWidth != update.wrapperWidth;
+ adjustView(cm, from, to);
+
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+ // Position the mover div to align with the current scroll position
+ cm.display.mover.style.top = display.viewOffset + "px";
+
+ var toUpdate = countDirtyView(cm);
+ if (
+ !different &&
+ toUpdate == 0 &&
+ !update.force &&
+ display.renderedView == display.view &&
+ (display.updateLineNumbers == null ||
+ display.updateLineNumbers >= display.viewTo)
+ )
+ return false;
+
+ // For big changes, we hide the enclosing element during the
+ // update, since that speeds up the operations on most browsers.
+ var focused = activeElt();
+ if (toUpdate > 4) display.lineDiv.style.display = "none";
+ patchDisplay(cm, display.updateLineNumbers, update.dims);
+ if (toUpdate > 4) display.lineDiv.style.display = "";
+ display.renderedView = display.view;
+ // There might have been a widget with a focused element that got
+ // hidden or updated, if so re-focus it.
+ if (focused && activeElt() != focused && focused.offsetHeight)
+ focused.focus();
+
+ // Prevent selection and cursors from interfering with the scroll
+ // width and height.
+ removeChildren(display.cursorDiv);
+ removeChildren(display.selectionDiv);
+ display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+ if (different) {
+ display.lastWrapHeight = update.wrapperHeight;
+ display.lastWrapWidth = update.wrapperWidth;
+ startWorker(cm, 400);
+ }
+
+ display.updateLineNumbers = null;
+
+ return true;
+ }
+
+ function postUpdateDisplay(cm, update) {
+ var viewport = update.viewport;
+ for (var first = true; ; first = false) {
+ if (
+ !first ||
+ !cm.options.lineWrapping ||
+ update.oldDisplayWidth == displayWidth(cm)
+ ) {
+ // Clip forced viewport to actual scrollable area.
+ if (viewport && viewport.top != null)
+ viewport = {
+ top: Math.min(
+ cm.doc.height + paddingVert(cm.display) - displayHeight(cm),
+ viewport.top
+ ),
+ };
+ // Updated line heights might result in the drawn area not
+ // actually covering the viewport. Keep looping until it does.
+ update.visible = visibleLines(cm.display, cm.doc, viewport);
+ if (
+ update.visible.from >= cm.display.viewFrom &&
+ update.visible.to <= cm.display.viewTo
+ )
+ break;
+ }
+ if (!updateDisplayIfNeeded(cm, update)) break;
+ updateHeightsInViewport(cm);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ setDocumentHeight(cm, barMeasure);
+ updateScrollbars(cm, barMeasure);
+ }
+
+ update.signal(cm, "update", cm);
+ if (
+ cm.display.viewFrom != cm.display.reportedViewFrom ||
+ cm.display.viewTo != cm.display.reportedViewTo
+ ) {
+ update.signal(
+ cm,
+ "viewportChange",
+ cm,
+ cm.display.viewFrom,
+ cm.display.viewTo
+ );
+ cm.display.reportedViewFrom = cm.display.viewFrom;
+ cm.display.reportedViewTo = cm.display.viewTo;
+ }
+ }
+
+ function updateDisplaySimple(cm, viewport) {
+ var update = new DisplayUpdate(cm, viewport);
+ if (updateDisplayIfNeeded(cm, update)) {
+ updateHeightsInViewport(cm);
+ postUpdateDisplay(cm, update);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ setDocumentHeight(cm, barMeasure);
+ updateScrollbars(cm, barMeasure);
+ update.finish();
+ }
+ }
+
+ function setDocumentHeight(cm, measure) {
+ cm.display.sizer.style.minHeight = measure.docHeight + "px";
+ var total = measure.docHeight + cm.display.barHeight;
+ cm.display.heightForcer.style.top = total + "px";
+ cm.display.gutters.style.height =
+ Math.max(total + scrollGap(cm), measure.clientHeight) + "px";
+ }
+
+ // Read the actual heights of the rendered lines, and update their
+ // stored heights to match.
+ function updateHeightsInViewport(cm) {
+ var display = cm.display;
+ var prevBottom = display.lineDiv.offsetTop;
+ for (var i = 0; i < display.view.length; i++) {
+ var cur = display.view[i],
+ height;
+ if (cur.hidden) continue;
+ if (ie && ie_version < 8) {
+ var bot = cur.node.offsetTop + cur.node.offsetHeight;
+ height = bot - prevBottom;
+ prevBottom = bot;
+ } else {
+ var box = cur.node.getBoundingClientRect();
+ height = box.bottom - box.top;
+ }
+ var diff = cur.line.height - height;
+ if (height < 2) height = textHeight(display);
+ if (diff > 0.001 || diff < -0.001) {
+ updateLineHeight(cur.line, height);
+ updateWidgetHeight(cur.line);
+ if (cur.rest)
+ for (var j = 0; j < cur.rest.length; j++)
+ updateWidgetHeight(cur.rest[j]);
+ }
+ }
+ }
+
+ // Read and store the height of line widgets associated with the
+ // given line.
+ function updateWidgetHeight(line) {
+ if (line.widgets)
+ for (var i = 0; i < line.widgets.length; ++i)
+ line.widgets[i].height = line.widgets[i].node.offsetHeight;
+ }
+
+ // Do a bulk-read of the DOM positions and sizes needed to draw the
+ // view, so that we don't interleave reading and writing to the DOM.
+ function getDimensions(cm) {
+ var d = cm.display,
+ left = {},
+ width = {};
+ var gutterLeft = d.gutters.clientLeft;
+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
+ width[cm.options.gutters[i]] = n.clientWidth;
+ }
+ return {
+ fixedPos: compensateForHScroll(d),
+ gutterTotalWidth: d.gutters.offsetWidth,
+ gutterLeft: left,
+ gutterWidth: width,
+ wrapperWidth: d.wrapper.clientWidth,
+ };
+ }
+
+ // Sync the actual display DOM structure with display.view, removing
+ // nodes for lines that are no longer in view, and creating the ones
+ // that are not there yet, and updating the ones that are out of
+ // date.
+ function patchDisplay(cm, updateNumbersFrom, dims) {
+ var display = cm.display,
+ lineNumbers = cm.options.lineNumbers;
+ var container = display.lineDiv,
+ cur = container.firstChild;
+
+ function rm(node) {
+ var next = node.nextSibling;
+ // Works around a throw-scroll bug in OS X Webkit
+ if (webkit && mac && cm.display.currentWheelTarget == node)
+ node.style.display = "none";
+ else node.parentNode.removeChild(node);
+ return next;
+ }
+
+ var view = display.view,
+ lineN = display.viewFrom;
+ // Loop over the elements in the view, syncing cur (the DOM nodes
+ // in display.lineDiv) with the view as we go.
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (lineView.hidden) {
+ } else if (!lineView.node || lineView.node.parentNode != container) {
+ // Not drawn yet
+ var node = buildLineElement(cm, lineView, lineN, dims);
+ container.insertBefore(node, cur);
+ } else {
+ // Already drawn
+ while (cur != lineView.node) cur = rm(cur);
+ var updateNumber =
+ lineNumbers &&
+ updateNumbersFrom != null &&
+ updateNumbersFrom <= lineN &&
+ lineView.lineNumber;
+ if (lineView.changes) {
+ if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
+ updateLineForChanges(cm, lineView, lineN, dims);
+ }
+ if (updateNumber) {
+ removeChildren(lineView.lineNumber);
+ lineView.lineNumber.appendChild(
+ document.createTextNode(lineNumberFor(cm.options, lineN))
+ );
+ }
+ cur = lineView.node.nextSibling;
+ }
+ lineN += lineView.size;
+ }
+ while (cur) cur = rm(cur);
+ }
+
+ // When an aspect of a line changes, a string is added to
+ // lineView.changes. This updates the relevant part of the line's
+ // DOM structure.
+ function updateLineForChanges(cm, lineView, lineN, dims) {
+ for (var j = 0; j < lineView.changes.length; j++) {
+ var type = lineView.changes[j];
+ if (type == "text") updateLineText(cm, lineView);
+ else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
+ else if (type == "class") updateLineClasses(lineView);
+ else if (type == "widget") updateLineWidgets(cm, lineView, dims);
+ }
+ lineView.changes = null;
+ }
+
+ // Lines with gutter elements, widgets or a background class need to
+ // be wrapped, and have the extra elements added to the wrapper div
+ function ensureLineWrapped(lineView) {
+ if (lineView.node == lineView.text) {
+ lineView.node = elt("div", null, null, "position: relative");
+ if (lineView.text.parentNode)
+ lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
+ lineView.node.appendChild(lineView.text);
+ if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
+ }
+ return lineView.node;
+ }
+
+ function updateLineBackground(lineView) {
+ var cls = lineView.bgClass
+ ? lineView.bgClass + " " + (lineView.line.bgClass || "")
+ : lineView.line.bgClass;
+ if (cls) cls += " CodeMirror-linebackground";
+ if (lineView.background) {
+ if (cls) lineView.background.className = cls;
+ else {
+ lineView.background.parentNode.removeChild(lineView.background);
+ lineView.background = null;
+ }
+ } else if (cls) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.background = wrap.insertBefore(
+ elt("div", null, cls),
+ wrap.firstChild
+ );
+ }
+ }
+
+ // Wrapper around buildLineContent which will reuse the structure
+ // in display.externalMeasured when possible.
+ function getLineContent(cm, lineView) {
+ var ext = cm.display.externalMeasured;
+ if (ext && ext.line == lineView.line) {
+ cm.display.externalMeasured = null;
+ lineView.measure = ext.measure;
+ return ext.built;
+ }
+ return buildLineContent(cm, lineView);
+ }
+
+ // Redraw the line's text. Interacts with the background and text
+ // classes because the mode may output tokens that influence these
+ // classes.
+ function updateLineText(cm, lineView) {
+ var cls = lineView.text.className;
+ var built = getLineContent(cm, lineView);
+ if (lineView.text == lineView.node) lineView.node = built.pre;
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+ lineView.text = built.pre;
+ if (
+ built.bgClass != lineView.bgClass ||
+ built.textClass != lineView.textClass
+ ) {
+ lineView.bgClass = built.bgClass;
+ lineView.textClass = built.textClass;
+ updateLineClasses(lineView);
+ } else if (cls) {
+ lineView.text.className = cls;
+ }
+ }
+
+ function updateLineClasses(lineView) {
+ updateLineBackground(lineView);
+ if (lineView.line.wrapClass)
+ ensureLineWrapped(lineView).className = lineView.line.wrapClass;
+ else if (lineView.node != lineView.text) lineView.node.className = "";
+ var textClass = lineView.textClass
+ ? lineView.textClass + " " + (lineView.line.textClass || "")
+ : lineView.line.textClass;
+ lineView.text.className = textClass || "";
+ }
+
+ function updateLineGutter(cm, lineView, lineN, dims) {
+ if (lineView.gutter) {
+ lineView.node.removeChild(lineView.gutter);
+ lineView.gutter = null;
+ }
+ if (lineView.gutterBackground) {
+ lineView.node.removeChild(lineView.gutterBackground);
+ lineView.gutterBackground = null;
+ }
+ if (lineView.line.gutterClass) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.gutterBackground = elt(
+ "div",
+ null,
+ "CodeMirror-gutter-background " + lineView.line.gutterClass,
+ "left: " +
+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
+ "px; width: " +
+ dims.gutterTotalWidth +
+ "px"
+ );
+ wrap.insertBefore(lineView.gutterBackground, lineView.text);
+ }
+ var markers = lineView.line.gutterMarkers;
+ if (cm.options.lineNumbers || markers) {
+ var wrap = ensureLineWrapped(lineView);
+ var gutterWrap = (lineView.gutter = elt(
+ "div",
+ null,
+ "CodeMirror-gutter-wrapper",
+ "left: " +
+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
+ "px"
+ ));
+ cm.display.input.setUneditable(gutterWrap);
+ wrap.insertBefore(gutterWrap, lineView.text);
+ if (lineView.line.gutterClass)
+ gutterWrap.className += " " + lineView.line.gutterClass;
+ if (
+ cm.options.lineNumbers &&
+ (!markers || !markers["CodeMirror-linenumbers"])
+ )
+ lineView.lineNumber = gutterWrap.appendChild(
+ elt(
+ "div",
+ lineNumberFor(cm.options, lineN),
+ "CodeMirror-linenumber CodeMirror-gutter-elt",
+ "left: " +
+ dims.gutterLeft["CodeMirror-linenumbers"] +
+ "px; width: " +
+ cm.display.lineNumInnerWidth +
+ "px"
+ )
+ );
+ if (markers)
+ for (var k = 0; k < cm.options.gutters.length; ++k) {
+ var id = cm.options.gutters[k],
+ found = markers.hasOwnProperty(id) && markers[id];
+ if (found)
+ gutterWrap.appendChild(
+ elt(
+ "div",
+ [found],
+ "CodeMirror-gutter-elt",
+ "left: " +
+ dims.gutterLeft[id] +
+ "px; width: " +
+ dims.gutterWidth[id] +
+ "px"
+ )
+ );
+ }
+ }
+ }
+
+ function updateLineWidgets(cm, lineView, dims) {
+ if (lineView.alignable) lineView.alignable = null;
+ for (var node = lineView.node.firstChild, next; node; node = next) {
+ var next = node.nextSibling;
+ if (node.className == "CodeMirror-linewidget")
+ lineView.node.removeChild(node);
+ }
+ insertLineWidgets(cm, lineView, dims);
+ }
+
+ // Build a line's DOM representation from scratch
+ function buildLineElement(cm, lineView, lineN, dims) {
+ var built = getLineContent(cm, lineView);
+ lineView.text = lineView.node = built.pre;
+ if (built.bgClass) lineView.bgClass = built.bgClass;
+ if (built.textClass) lineView.textClass = built.textClass;
+
+ updateLineClasses(lineView);
+ updateLineGutter(cm, lineView, lineN, dims);
+ insertLineWidgets(cm, lineView, dims);
+ return lineView.node;
+ }
+
+ // A lineView may contain multiple logical lines (when merged by
+ // collapsed spans). The widgets for all of them need to be drawn.
+ function insertLineWidgets(cm, lineView, dims) {
+ insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+ if (lineView.rest)
+ for (var i = 0; i < lineView.rest.length; i++)
+ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
+ }
+
+ function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+ if (!line.widgets) return;
+ var wrap = ensureLineWrapped(lineView);
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+ var widget = ws[i],
+ node = elt("div", [widget.node], "CodeMirror-linewidget");
+ if (!widget.handleMouseEvents)
+ node.setAttribute("cm-ignore-events", "true");
+ positionLineWidget(widget, node, lineView, dims);
+ cm.display.input.setUneditable(node);
+ if (allowAbove && widget.above)
+ wrap.insertBefore(node, lineView.gutter || lineView.text);
+ else wrap.appendChild(node);
+ signalLater(widget, "redraw");
+ }
+ }
+
+ function positionLineWidget(widget, node, lineView, dims) {
+ if (widget.noHScroll) {
+ (lineView.alignable || (lineView.alignable = [])).push(node);
+ var width = dims.wrapperWidth;
+ node.style.left = dims.fixedPos + "px";
+ if (!widget.coverGutter) {
+ width -= dims.gutterTotalWidth;
+ node.style.paddingLeft = dims.gutterTotalWidth + "px";
+ }
+ node.style.width = width + "px";
+ }
+ if (widget.coverGutter) {
+ node.style.zIndex = 5;
+ node.style.position = "relative";
+ if (!widget.noHScroll)
+ node.style.marginLeft = -dims.gutterTotalWidth + "px";
+ }
+ }
+
+ // POSITION OBJECT
+
+ // A Pos instance represents a position within the text.
+ var Pos = (CodeMirror.Pos = function (line, ch) {
+ if (!(this instanceof Pos)) return new Pos(line, ch);
+ this.line = line;
+ this.ch = ch;
+ });
+
+ // Compare two positions, return 0 if they are the same, a negative
+ // number when a is less, and a positive number otherwise.
+ var cmp = (CodeMirror.cmpPos = function (a, b) {
+ return a.line - b.line || a.ch - b.ch;
+ });
+
+ function copyPos(x) {
+ return Pos(x.line, x.ch);
+ }
+ function maxPos(a, b) {
+ return cmp(a, b) < 0 ? b : a;
+ }
+ function minPos(a, b) {
+ return cmp(a, b) < 0 ? a : b;
+ }
+
+ // INPUT HANDLING
+
+ function ensureFocus(cm) {
+ if (!cm.state.focused) {
+ cm.display.input.focus();
+ onFocus(cm);
+ }
+ }
+
+ function isReadOnly(cm) {
+ return cm.options.readOnly || cm.doc.cantEdit;
+ }
+
+ // This will be set to an array of strings when copying, so that,
+ // when pasting, we know what kind of selections the copied text
+ // was made out of.
+ var lastCopied = null;
+
+ function applyTextInput(cm, inserted, deleted, sel, origin) {
+ var doc = cm.doc;
+ cm.display.shift = false;
+ if (!sel) sel = doc.sel;
+
+ var paste = cm.state.pasteIncoming || origin == "paste";
+ var textLines = doc.splitLines(inserted),
+ multiPaste = null;
+ // When pasing N lines into N selections, insert one line per selection
+ if (paste && sel.ranges.length > 1) {
+ if (lastCopied && lastCopied.join("\n") == inserted) {
+ if (sel.ranges.length % lastCopied.length == 0) {
+ multiPaste = [];
+ for (var i = 0; i < lastCopied.length; i++)
+ multiPaste.push(doc.splitLines(lastCopied[i]));
+ }
+ } else if (textLines.length == sel.ranges.length) {
+ multiPaste = map(textLines, function (l) {
+ return [l];
+ });
+ }
+ }
+
+ // Normal behavior is to insert the new text into every selection
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ var from = range.from(),
+ to = range.to();
+ if (range.empty()) {
+ if (deleted && deleted > 0)
+ // Handle deletion
+ from = Pos(from.line, from.ch - deleted);
+ else if (cm.state.overwrite && !paste)
+ // Handle overwrite
+ to = Pos(
+ to.line,
+ Math.min(
+ getLine(doc, to.line).text.length,
+ to.ch + lst(textLines).length
+ )
+ );
+ }
+ var updateInput = cm.curOp.updateInput;
+ var changeEvent = {
+ from: from,
+ to: to,
+ text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
+ origin:
+ origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input"),
+ };
+ makeChange(cm.doc, changeEvent);
+ signalLater(cm, "inputRead", cm, changeEvent);
+ }
+ if (inserted && !paste) triggerElectric(cm, inserted);
+
+ ensureCursorVisible(cm);
+ cm.curOp.updateInput = updateInput;
+ cm.curOp.typing = true;
+ cm.state.pasteIncoming = cm.state.cutIncoming = false;
+ }
+
+ function handlePaste(e, cm) {
+ var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
+ if (pasted) {
+ e.preventDefault();
+ if (!isReadOnly(cm) && !cm.options.disableInput)
+ runInOp(cm, function () {
+ applyTextInput(cm, pasted, 0, null, "paste");
+ });
+ return true;
+ }
+ }
+
+ function triggerElectric(cm, inserted) {
+ // When an 'electric' character is inserted, immediately trigger a reindent
+ if (!cm.options.electricChars || !cm.options.smartIndent) return;
+ var sel = cm.doc.sel;
+
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ if (
+ range.head.ch > 100 ||
+ (i && sel.ranges[i - 1].head.line == range.head.line)
+ )
+ continue;
+ var mode = cm.getModeAt(range.head);
+ var indented = false;
+ if (mode.electricChars) {
+ for (var j = 0; j < mode.electricChars.length; j++)
+ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+ indented = indentLine(cm, range.head.line, "smart");
+ break;
+ }
+ } else if (mode.electricInput) {
+ if (
+ mode.electricInput.test(
+ getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)
+ )
+ )
+ indented = indentLine(cm, range.head.line, "smart");
+ }
+ if (indented) signalLater(cm, "electricInput", cm, range.head.line);
+ }
+ }
+
+ function copyableRanges(cm) {
+ var text = [],
+ ranges = [];
+ for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+ var line = cm.doc.sel.ranges[i].head.line;
+ var lineRange = { anchor: Pos(line, 0), head: Pos(line + 1, 0) };
+ ranges.push(lineRange);
+ text.push(cm.getRange(lineRange.anchor, lineRange.head));
+ }
+ return { text: text, ranges: ranges };
+ }
+
+ function disableBrowserMagic(field) {
+ field.setAttribute("autocorrect", "off");
+ field.setAttribute("autocapitalize", "off");
+ field.setAttribute("spellcheck", "false");
+ }
+
+ // TEXTAREA INPUT STYLE
+
+ function TextareaInput(cm) {
+ this.cm = cm;
+ // See input.poll and input.reset
+ this.prevInput = "";
+
+ // Flag that indicates whether we expect input to appear real soon
+ // now (after some event like 'keypress' or 'input') and are
+ // polling intensively.
+ this.pollingFast = false;
+ // Self-resetting timeout for the poller
+ this.polling = new Delayed();
+ // Tracks when input.reset has punted to just putting a short
+ // string into the textarea instead of the full selection.
+ this.inaccurateSelection = false;
+ // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+ this.hasSelection = false;
+ this.composing = null;
+ }
+
+ function hiddenTextarea() {
+ var te = elt(
+ "textarea",
+ null,
+ null,
+ "position: absolute; padding: 0; width: 1px; height: 1em; outline: none"
+ );
+ var div = elt(
+ "div",
+ [te],
+ null,
+ "overflow: hidden; position: relative; width: 3px; height: 0px;"
+ );
+ // The textarea is kept positioned near the cursor to prevent the
+ // fact that it'll be scrolled into view on input from scrolling
+ // our fake cursor out of view. On webkit, when wrap=off, paste is
+ // very slow. So make the area wide instead.
+ if (webkit) te.style.width = "1000px";
+ else te.setAttribute("wrap", "off");
+ // If border: 0; -- iOS fails to open keyboard (issue #1287)
+ if (ios) te.style.border = "1px solid black";
+ disableBrowserMagic(te);
+ return div;
+ }
+
+ TextareaInput.prototype = copyObj(
+ {
+ init: function (display) {
+ var input = this,
+ cm = this.cm;
+
+ // Wraps and hides input textarea
+ var div = (this.wrapper = hiddenTextarea());
+ // The semihidden textarea that is focused when the editor is
+ // focused, and receives input.
+ var te = (this.textarea = div.firstChild);
+ display.wrapper.insertBefore(div, display.wrapper.firstChild);
+
+ // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+ if (ios) te.style.width = "0px";
+
+ on(te, "input", function () {
+ if (ie && ie_version >= 9 && input.hasSelection)
+ input.hasSelection = null;
+ input.poll();
+ });
+
+ on(te, "paste", function (e) {
+ if (handlePaste(e, cm)) return true;
+
+ cm.state.pasteIncoming = true;
+ input.fastPoll();
+ });
+
+ function prepareCopyCut(e) {
+ if (cm.somethingSelected()) {
+ lastCopied = cm.getSelections();
+ if (input.inaccurateSelection) {
+ input.prevInput = "";
+ input.inaccurateSelection = false;
+ te.value = lastCopied.join("\n");
+ selectInput(te);
+ }
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = ranges.text;
+ if (e.type == "cut") {
+ cm.setSelections(ranges.ranges, null, sel_dontScroll);
+ } else {
+ input.prevInput = "";
+ te.value = ranges.text.join("\n");
+ selectInput(te);
+ }
+ }
+ if (e.type == "cut") cm.state.cutIncoming = true;
+ }
+ on(te, "cut", prepareCopyCut);
+ on(te, "copy", prepareCopyCut);
+
+ on(display.scroller, "paste", function (e) {
+ if (eventInWidget(display, e)) return;
+ cm.state.pasteIncoming = true;
+ input.focus();
+ });
+
+ // Prevent normal selection in the editor (we handle our own)
+ on(display.lineSpace, "selectstart", function (e) {
+ if (!eventInWidget(display, e)) e_preventDefault(e);
+ });
+
+ on(te, "compositionstart", function () {
+ var start = cm.getCursor("from");
+ if (input.composing) input.composing.range.clear();
+ input.composing = {
+ start: start,
+ range: cm.markText(start, cm.getCursor("to"), {
+ className: "CodeMirror-composing",
+ }),
+ };
+ });
+ on(te, "compositionend", function () {
+ if (input.composing) {
+ input.poll();
+ input.composing.range.clear();
+ input.composing = null;
+ }
+ });
+ },
+
+ prepareSelection: function () {
+ // Redraw the selection and/or cursor
+ var cm = this.cm,
+ display = cm.display,
+ doc = cm.doc;
+ var result = prepareSelection(cm);
+
+ // Move the hidden textarea near the cursor to prevent scrolling artifacts
+ if (cm.options.moveInputWithCursor) {
+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+ var wrapOff = display.wrapper.getBoundingClientRect(),
+ lineOff = display.lineDiv.getBoundingClientRect();
+ result.teTop = Math.max(
+ 0,
+ Math.min(
+ display.wrapper.clientHeight - 10,
+ headPos.top + lineOff.top - wrapOff.top
+ )
+ );
+ result.teLeft = Math.max(
+ 0,
+ Math.min(
+ display.wrapper.clientWidth - 10,
+ headPos.left + lineOff.left - wrapOff.left
+ )
+ );
+ }
+
+ return result;
+ },
+
+ showSelection: function (drawn) {
+ var cm = this.cm,
+ display = cm.display;
+ removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+ removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+ if (drawn.teTop != null) {
+ this.wrapper.style.top = drawn.teTop + "px";
+ this.wrapper.style.left = drawn.teLeft + "px";
+ }
+ },
+
+ // Reset the input to correspond to the selection (or to be empty,
+ // when not typing and nothing is selected)
+ reset: function (typing) {
+ if (this.contextMenuPending) return;
+ var minimal,
+ selected,
+ cm = this.cm,
+ doc = cm.doc;
+ if (cm.somethingSelected()) {
+ this.prevInput = "";
+ var range = doc.sel.primary();
+ minimal =
+ hasCopyEvent &&
+ (range.to().line - range.from().line > 100 ||
+ (selected = cm.getSelection()).length > 1000);
+ var content = minimal ? "-" : selected || cm.getSelection();
+ this.textarea.value = content;
+ if (cm.state.focused) selectInput(this.textarea);
+ if (ie && ie_version >= 9) this.hasSelection = content;
+ } else if (!typing) {
+ this.prevInput = this.textarea.value = "";
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ }
+ this.inaccurateSelection = minimal;
+ },
+
+ getField: function () {
+ return this.textarea;
+ },
+
+ supportsTouch: function () {
+ return false;
+ },
+
+ focus: function () {
+ if (
+ this.cm.options.readOnly != "nocursor" &&
+ (!mobile || activeElt() != this.textarea)
+ ) {
+ try {
+ this.textarea.focus();
+ } catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+ }
+ },
+
+ blur: function () {
+ this.textarea.blur();
+ },
+
+ resetPosition: function () {
+ this.wrapper.style.top = this.wrapper.style.left = 0;
+ },
+
+ receivedFocus: function () {
+ this.slowPoll();
+ },
+
+ // Poll for input changes, using the normal rate of polling. This
+ // runs as long as the editor is focused.
+ slowPoll: function () {
+ var input = this;
+ if (input.pollingFast) return;
+ input.polling.set(this.cm.options.pollInterval, function () {
+ input.poll();
+ if (input.cm.state.focused) input.slowPoll();
+ });
+ },
+
+ // When an event has just come in that is likely to add or change
+ // something in the input textarea, we poll faster, to ensure that
+ // the change appears on the screen quickly.
+ fastPoll: function () {
+ var missed = false,
+ input = this;
+ input.pollingFast = true;
+ function p() {
+ var changed = input.poll();
+ if (!changed && !missed) {
+ missed = true;
+ input.polling.set(60, p);
+ } else {
+ input.pollingFast = false;
+ input.slowPoll();
+ }
+ }
+ input.polling.set(20, p);
+ },
+
+ // Read input from the textarea, and update the document to match.
+ // When something is selected, it is present in the textarea, and
+ // selected (unless it is huge, in which case a placeholder is
+ // used). When nothing is selected, the cursor sits after previously
+ // seen text (can be empty), which is stored in prevInput (we must
+ // not reset the textarea when typing, because that breaks IME).
+ poll: function () {
+ var cm = this.cm,
+ input = this.textarea,
+ prevInput = this.prevInput;
+ // Since this is called a *lot*, try to bail out as cheaply as
+ // possible when it is clear that nothing happened. hasSelection
+ // will be the case when there is a lot of text in the textarea,
+ // in which case reading its value would be expensive.
+ if (
+ this.contextMenuPending ||
+ !cm.state.focused ||
+ (hasSelection(input) && !prevInput && !this.composing) ||
+ isReadOnly(cm) ||
+ cm.options.disableInput ||
+ cm.state.keySeq
+ )
+ return false;
+
+ var text = input.value;
+ // If nothing changed, bail.
+ if (text == prevInput && !cm.somethingSelected()) return false;
+ // Work around nonsensical selection resetting in IE9/10, and
+ // inexplicable appearance of private area unicode characters on
+ // some key combos in Mac (#2689).
+ if (
+ (ie && ie_version >= 9 && this.hasSelection === text) ||
+ (mac && /[\uf700-\uf7ff]/.test(text))
+ ) {
+ cm.display.input.reset();
+ return false;
+ }
+
+ if (cm.doc.sel == cm.display.selForContextMenu) {
+ var first = text.charCodeAt(0);
+ if (first == 0x200b && !prevInput) prevInput = "\u200b";
+ if (first == 0x21da) {
+ this.reset();
+ return this.cm.execCommand("undo");
+ }
+ }
+ // Find the part of the input that is actually new
+ var same = 0,
+ l = Math.min(prevInput.length, text.length);
+ while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same))
+ ++same;
+
+ var self = this;
+ runInOp(cm, function () {
+ applyTextInput(
+ cm,
+ text.slice(same),
+ prevInput.length - same,
+ null,
+ self.composing ? "*compose" : null
+ );
+
+ // Don't leave long text in the textarea, since it makes further polling slow
+ if (text.length > 1000 || text.indexOf("\n") > -1)
+ input.value = self.prevInput = "";
+ else self.prevInput = text;
+
+ if (self.composing) {
+ self.composing.range.clear();
+ self.composing.range = cm.markText(
+ self.composing.start,
+ cm.getCursor("to"),
+ { className: "CodeMirror-composing" }
+ );
+ }
+ });
+ return true;
+ },
+
+ ensurePolled: function () {
+ if (this.pollingFast && this.poll()) this.pollingFast = false;
+ },
+
+ onKeyPress: function () {
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ this.fastPoll();
+ },
+
+ onContextMenu: function (e) {
+ var input = this,
+ cm = input.cm,
+ display = cm.display,
+ te = input.textarea;
+ var pos = posFromMouse(cm, e),
+ scrollPos = display.scroller.scrollTop;
+ if (!pos || presto) return; // Opera is difficult.
+
+ // Reset the current text selection only if the click is done outside of the selection
+ // and 'resetSelectionOnContextMenu' option is true.
+ var reset = cm.options.resetSelectionOnContextMenu;
+ if (reset && cm.doc.sel.contains(pos) == -1)
+ operation(cm, setSelection)(
+ cm.doc,
+ simpleSelection(pos),
+ sel_dontScroll
+ );
+
+ var oldCSS = te.style.cssText;
+ input.wrapper.style.position = "absolute";
+ te.style.cssText =
+ "position: fixed; width: 30px; height: 30px; top: " +
+ (e.clientY - 5) +
+ "px; left: " +
+ (e.clientX - 5) +
+ "px; z-index: 1000; background: " +
+ (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
+ "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+ if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
+ display.input.focus();
+ if (webkit) window.scrollTo(null, oldScrollY);
+ display.input.reset();
+ // Adds "Select all" to context menu in FF
+ if (!cm.somethingSelected()) te.value = input.prevInput = " ";
+ input.contextMenuPending = true;
+ display.selForContextMenu = cm.doc.sel;
+ clearTimeout(display.detectingSelectAll);
+
+ // Select-all will be greyed out if there's nothing to select, so
+ // this adds a zero-width space so that we can later check whether
+ // it got selected.
+ function prepareSelectAllHack() {
+ if (te.selectionStart != null) {
+ var selected = cm.somethingSelected();
+ var extval = "\u200b" + (selected ? te.value : "");
+ te.value = "\u21da"; // Used to catch context-menu undo
+ te.value = extval;
+ input.prevInput = selected ? "" : "\u200b";
+ te.selectionStart = 1;
+ te.selectionEnd = extval.length;
+ // Re-set this, in case some other handler touched the
+ // selection in the meantime.
+ display.selForContextMenu = cm.doc.sel;
+ }
+ }
+ function rehide() {
+ input.contextMenuPending = false;
+ input.wrapper.style.position = "relative";
+ te.style.cssText = oldCSS;
+ if (ie && ie_version < 9)
+ display.scrollbars.setScrollTop(
+ (display.scroller.scrollTop = scrollPos)
+ );
+
+ // Try to detect the user choosing select-all
+ if (te.selectionStart != null) {
+ if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
+ var i = 0,
+ poll = function () {
+ if (
+ display.selForContextMenu == cm.doc.sel &&
+ te.selectionStart == 0 &&
+ te.selectionEnd > 0 &&
+ input.prevInput == "\u200b"
+ )
+ operation(cm, commands.selectAll)(cm);
+ else if (i++ < 10)
+ display.detectingSelectAll = setTimeout(poll, 500);
+ else display.input.reset();
+ };
+ display.detectingSelectAll = setTimeout(poll, 200);
+ }
+ }
+
+ if (ie && ie_version >= 9) prepareSelectAllHack();
+ if (captureRightClick) {
+ e_stop(e);
+ var mouseup = function () {
+ off(window, "mouseup", mouseup);
+ setTimeout(rehide, 20);
+ };
+ on(window, "mouseup", mouseup);
+ } else {
+ setTimeout(rehide, 50);
+ }
+ },
+
+ readOnlyChanged: function (val) {
+ if (!val) this.reset();
+ },
+
+ setUneditable: nothing,
+
+ needsContentAttribute: false,
+ },
+ TextareaInput.prototype
+ );
+
+ // CONTENTEDITABLE INPUT STYLE
+
+ function ContentEditableInput(cm) {
+ this.cm = cm;
+ this.lastAnchorNode =
+ this.lastAnchorOffset =
+ this.lastFocusNode =
+ this.lastFocusOffset =
+ null;
+ this.polling = new Delayed();
+ this.gracePeriod = false;
+ }
+
+ ContentEditableInput.prototype = copyObj(
+ {
+ init: function (display) {
+ var input = this,
+ cm = input.cm;
+ var div = (input.div = display.lineDiv);
+ disableBrowserMagic(div);
+
+ on(div, "paste", function (e) {
+ handlePaste(e, cm);
+ });
+
+ on(div, "compositionstart", function (e) {
+ var data = e.data;
+ input.composing = { sel: cm.doc.sel, data: data, startData: data };
+ if (!data) return;
+ var prim = cm.doc.sel.primary();
+ var line = cm.getLine(prim.head.line);
+ var found = line.indexOf(
+ data,
+ Math.max(0, prim.head.ch - data.length)
+ );
+ if (found > -1 && found <= prim.head.ch)
+ input.composing.sel = simpleSelection(
+ Pos(prim.head.line, found),
+ Pos(prim.head.line, found + data.length)
+ );
+ });
+ on(div, "compositionupdate", function (e) {
+ input.composing.data = e.data;
+ });
+ on(div, "compositionend", function (e) {
+ var ours = input.composing;
+ if (!ours) return;
+ if (e.data != ours.startData && !/\u200b/.test(e.data))
+ ours.data = e.data;
+ // Need a small delay to prevent other code (input event,
+ // selection polling) from doing damage when fired right after
+ // compositionend.
+ setTimeout(function () {
+ if (!ours.handled) input.applyComposition(ours);
+ if (input.composing == ours) input.composing = null;
+ }, 50);
+ });
+
+ on(div, "touchstart", function () {
+ input.forceCompositionEnd();
+ });
+
+ on(div, "input", function () {
+ if (input.composing) return;
+ if (isReadOnly(cm) || !input.pollContent())
+ runInOp(input.cm, function () {
+ regChange(cm);
+ });
+ });
+
+ function onCopyCut(e) {
+ if (cm.somethingSelected()) {
+ lastCopied = cm.getSelections();
+ if (e.type == "cut") cm.replaceSelection("", null, "cut");
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = ranges.text;
+ if (e.type == "cut") {
+ cm.operation(function () {
+ cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+ cm.replaceSelection("", null, "cut");
+ });
+ }
+ }
+ // iOS exposes the clipboard API, but seems to discard content inserted into it
+ if (e.clipboardData && !ios) {
+ e.preventDefault();
+ e.clipboardData.clearData();
+ e.clipboardData.setData("text/plain", lastCopied.join("\n"));
+ } else {
+ // Old-fashioned briefly-focus-a-textarea hack
+ var kludge = hiddenTextarea(),
+ te = kludge.firstChild;
+ cm.display.lineSpace.insertBefore(
+ kludge,
+ cm.display.lineSpace.firstChild
+ );
+ te.value = lastCopied.join("\n");
+ var hadFocus = document.activeElement;
+ selectInput(te);
+ setTimeout(function () {
+ cm.display.lineSpace.removeChild(kludge);
+ hadFocus.focus();
+ }, 50);
+ }
+ }
+ on(div, "copy", onCopyCut);
+ on(div, "cut", onCopyCut);
+ },
+
+ prepareSelection: function () {
+ var result = prepareSelection(this.cm, false);
+ result.focus = this.cm.state.focused;
+ return result;
+ },
+
+ showSelection: function (info) {
+ if (!info || !this.cm.display.view.length) return;
+ if (info.focus) this.showPrimarySelection();
+ this.showMultipleSelections(info);
+ },
+
+ showPrimarySelection: function () {
+ var sel = window.getSelection(),
+ prim = this.cm.doc.sel.primary();
+ var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
+ var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
+ if (
+ curAnchor &&
+ !curAnchor.bad &&
+ curFocus &&
+ !curFocus.bad &&
+ cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+ cmp(maxPos(curAnchor, curFocus), prim.to()) == 0
+ )
+ return;
+
+ var start = posToDOM(this.cm, prim.from());
+ var end = posToDOM(this.cm, prim.to());
+ if (!start && !end) return;
+
+ var view = this.cm.display.view;
+ var old = sel.rangeCount && sel.getRangeAt(0);
+ if (!start) {
+ start = { node: view[0].measure.map[2], offset: 0 };
+ } else if (!end) {
+ // FIXME dangerously hacky
+ var measure = view[view.length - 1].measure;
+ var map = measure.maps
+ ? measure.maps[measure.maps.length - 1]
+ : measure.map;
+ end = {
+ node: map[map.length - 1],
+ offset: map[map.length - 2] - map[map.length - 3],
+ };
+ }
+
+ try {
+ var rng = range(start.node, start.offset, end.offset, end.node);
+ } catch (e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+ if (rng) {
+ sel.removeAllRanges();
+ sel.addRange(rng);
+ if (old && sel.anchorNode == null) sel.addRange(old);
+ else if (gecko) this.startGracePeriod();
+ }
+ this.rememberSelection();
+ },
+
+ startGracePeriod: function () {
+ var input = this;
+ clearTimeout(this.gracePeriod);
+ this.gracePeriod = setTimeout(function () {
+ input.gracePeriod = false;
+ if (input.selectionChanged())
+ input.cm.operation(function () {
+ input.cm.curOp.selectionChanged = true;
+ });
+ }, 20);
+ },
+
+ showMultipleSelections: function (info) {
+ removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+ removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+ },
+
+ rememberSelection: function () {
+ var sel = window.getSelection();
+ this.lastAnchorNode = sel.anchorNode;
+ this.lastAnchorOffset = sel.anchorOffset;
+ this.lastFocusNode = sel.focusNode;
+ this.lastFocusOffset = sel.focusOffset;
+ },
+
+ selectionInEditor: function () {
+ var sel = window.getSelection();
+ if (!sel.rangeCount) return false;
+ var node = sel.getRangeAt(0).commonAncestorContainer;
+ return contains(this.div, node);
+ },
+
+ focus: function () {
+ if (this.cm.options.readOnly != "nocursor") this.div.focus();
+ },
+ blur: function () {
+ this.div.blur();
+ },
+ getField: function () {
+ return this.div;
+ },
+
+ supportsTouch: function () {
+ return true;
+ },
+
+ receivedFocus: function () {
+ var input = this;
+ if (this.selectionInEditor()) this.pollSelection();
+ else
+ runInOp(this.cm, function () {
+ input.cm.curOp.selectionChanged = true;
+ });
+
+ function poll() {
+ if (input.cm.state.focused) {
+ input.pollSelection();
+ input.polling.set(input.cm.options.pollInterval, poll);
+ }
+ }
+ this.polling.set(this.cm.options.pollInterval, poll);
+ },
+
+ selectionChanged: function () {
+ var sel = window.getSelection();
+ return (
+ sel.anchorNode != this.lastAnchorNode ||
+ sel.anchorOffset != this.lastAnchorOffset ||
+ sel.focusNode != this.lastFocusNode ||
+ sel.focusOffset != this.lastFocusOffset
+ );
+ },
+
+ pollSelection: function () {
+ if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
+ var sel = window.getSelection(),
+ cm = this.cm;
+ this.rememberSelection();
+ var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+ var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+ if (anchor && head)
+ runInOp(cm, function () {
+ setSelection(
+ cm.doc,
+ simpleSelection(anchor, head),
+ sel_dontScroll
+ );
+ if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
+ });
+ }
+ },
+
+ pollContent: function () {
+ var cm = this.cm,
+ display = cm.display,
+ sel = cm.doc.sel.primary();
+ var from = sel.from(),
+ to = sel.to();
+ if (from.line < display.viewFrom || to.line > display.viewTo - 1)
+ return false;
+
+ var fromIndex;
+ if (
+ from.line == display.viewFrom ||
+ (fromIndex = findViewIndex(cm, from.line)) == 0
+ ) {
+ var fromLine = lineNo(display.view[0].line);
+ var fromNode = display.view[0].node;
+ } else {
+ var fromLine = lineNo(display.view[fromIndex].line);
+ var fromNode = display.view[fromIndex - 1].node.nextSibling;
+ }
+ var toIndex = findViewIndex(cm, to.line);
+ if (toIndex == display.view.length - 1) {
+ var toLine = display.viewTo - 1;
+ var toNode = display.lineDiv.lastChild;
+ } else {
+ var toLine = lineNo(display.view[toIndex + 1].line) - 1;
+ var toNode = display.view[toIndex + 1].node.previousSibling;
+ }
+
+ var newText = cm.doc.splitLines(
+ domTextBetween(cm, fromNode, toNode, fromLine, toLine)
+ );
+ var oldText = getBetween(
+ cm.doc,
+ Pos(fromLine, 0),
+ Pos(toLine, getLine(cm.doc, toLine).text.length)
+ );
+ while (newText.length > 1 && oldText.length > 1) {
+ if (lst(newText) == lst(oldText)) {
+ newText.pop();
+ oldText.pop();
+ toLine--;
+ } else if (newText[0] == oldText[0]) {
+ newText.shift();
+ oldText.shift();
+ fromLine++;
+ } else break;
+ }
+
+ var cutFront = 0,
+ cutEnd = 0;
+ var newTop = newText[0],
+ oldTop = oldText[0],
+ maxCutFront = Math.min(newTop.length, oldTop.length);
+ while (
+ cutFront < maxCutFront &&
+ newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)
+ )
+ ++cutFront;
+ var newBot = lst(newText),
+ oldBot = lst(oldText);
+ var maxCutEnd = Math.min(
+ newBot.length - (newText.length == 1 ? cutFront : 0),
+ oldBot.length - (oldText.length == 1 ? cutFront : 0)
+ );
+ while (
+ cutEnd < maxCutEnd &&
+ newBot.charCodeAt(newBot.length - cutEnd - 1) ==
+ oldBot.charCodeAt(oldBot.length - cutEnd - 1)
+ )
+ ++cutEnd;
+
+ newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
+ newText[0] = newText[0].slice(cutFront);
+
+ var chFrom = Pos(fromLine, cutFront);
+ var chTo = Pos(
+ toLine,
+ oldText.length ? lst(oldText).length - cutEnd : 0
+ );
+ if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+ replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+ return true;
+ }
+ },
+
+ ensurePolled: function () {
+ this.forceCompositionEnd();
+ },
+ reset: function () {
+ this.forceCompositionEnd();
+ },
+ forceCompositionEnd: function () {
+ if (!this.composing || this.composing.handled) return;
+ this.applyComposition(this.composing);
+ this.composing.handled = true;
+ this.div.blur();
+ this.div.focus();
+ },
+ applyComposition: function (composing) {
+ if (isReadOnly(this.cm)) operation(this.cm, regChange)(this.cm);
+ else if (composing.data && composing.data != composing.startData)
+ operation(this.cm, applyTextInput)(
+ this.cm,
+ composing.data,
+ 0,
+ composing.sel
+ );
+ },
+
+ setUneditable: function (node) {
+ node.contentEditable = "false";
+ },
+
+ onKeyPress: function (e) {
+ e.preventDefault();
+ if (!isReadOnly(this.cm))
+ operation(this.cm, applyTextInput)(
+ this.cm,
+ String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode),
+ 0
+ );
+ },
+
+ readOnlyChanged: function (val) {
+ this.div.contentEditable = String(val != "nocursor");
+ },
+
+ onContextMenu: nothing,
+ resetPosition: nothing,
+
+ needsContentAttribute: true,
+ },
+ ContentEditableInput.prototype
+ );
+
+ function posToDOM(cm, pos) {
+ var view = findViewForLine(cm, pos.line);
+ if (!view || view.hidden) return null;
+ var line = getLine(cm.doc, pos.line);
+ var info = mapFromLineView(view, line, pos.line);
+
+ var order = getOrder(line),
+ side = "left";
+ if (order) {
+ var partPos = getBidiPartAt(order, pos.ch);
+ side = partPos % 2 ? "right" : "left";
+ }
+ var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+ result.offset = result.collapse == "right" ? result.end : result.start;
+ return result;
+ }
+
+ function badPos(pos, bad) {
+ if (bad) pos.bad = true;
+ return pos;
+ }
+
+ function domToPos(cm, node, offset) {
+ var lineNode;
+ if (node == cm.display.lineDiv) {
+ lineNode = cm.display.lineDiv.childNodes[offset];
+ if (!lineNode)
+ return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
+ node = null;
+ offset = 0;
+ } else {
+ for (lineNode = node; ; lineNode = lineNode.parentNode) {
+ if (!lineNode || lineNode == cm.display.lineDiv) return null;
+ if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv)
+ break;
+ }
+ }
+ for (var i = 0; i < cm.display.view.length; i++) {
+ var lineView = cm.display.view[i];
+ if (lineView.node == lineNode)
+ return locateNodeInLineView(lineView, node, offset);
+ }
+ }
+
+ function locateNodeInLineView(lineView, node, offset) {
+ var wrapper = lineView.text.firstChild,
+ bad = false;
+ if (!node || !contains(wrapper, node))
+ return badPos(Pos(lineNo(lineView.line), 0), true);
+ if (node == wrapper) {
+ bad = true;
+ node = wrapper.childNodes[offset];
+ offset = 0;
+ if (!node) {
+ var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+ return badPos(Pos(lineNo(line), line.text.length), bad);
+ }
+ }
+
+ var textNode = node.nodeType == 3 ? node : null,
+ topNode = node;
+ if (
+ !textNode &&
+ node.childNodes.length == 1 &&
+ node.firstChild.nodeType == 3
+ ) {
+ textNode = node.firstChild;
+ if (offset) offset = textNode.nodeValue.length;
+ }
+ while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
+ var measure = lineView.measure,
+ maps = measure.maps;
+
+ function find(textNode, topNode, offset) {
+ for (var i = -1; i < (maps ? maps.length : 0); i++) {
+ var map = i < 0 ? measure.map : maps[i];
+ for (var j = 0; j < map.length; j += 3) {
+ var curNode = map[j + 2];
+ if (curNode == textNode || curNode == topNode) {
+ var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+ var ch = map[j] + offset;
+ if (offset < 0 || curNode != textNode)
+ ch = map[j + (offset ? 1 : 0)];
+ return Pos(line, ch);
+ }
+ }
+ }
+ }
+ var found = find(textNode, topNode, offset);
+ if (found) return badPos(found, bad);
+
+ // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+ for (
+ var after = topNode.nextSibling,
+ dist = textNode ? textNode.nodeValue.length - offset : 0;
+ after;
+ after = after.nextSibling
+ ) {
+ found = find(after, after.firstChild, 0);
+ if (found) return badPos(Pos(found.line, found.ch - dist), bad);
+ else dist += after.textContent.length;
+ }
+ for (
+ var before = topNode.previousSibling, dist = offset;
+ before;
+ before = before.previousSibling
+ ) {
+ found = find(before, before.firstChild, -1);
+ if (found) return badPos(Pos(found.line, found.ch + dist), bad);
+ else dist += after.textContent.length;
+ }
+ }
+
+ function domTextBetween(cm, from, to, fromLine, toLine) {
+ var text = "",
+ closing = false,
+ lineSep = cm.doc.lineSeparator();
+ function recognizeMarker(id) {
+ return function (marker) {
+ return marker.id == id;
+ };
+ }
+ function walk(node) {
+ if (node.nodeType == 1) {
+ var cmText = node.getAttribute("cm-text");
+ if (cmText != null) {
+ if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
+ text += cmText;
+ return;
+ }
+ var markerID = node.getAttribute("cm-marker"),
+ range;
+ if (markerID) {
+ var found = cm.findMarks(
+ Pos(fromLine, 0),
+ Pos(toLine + 1, 0),
+ recognizeMarker(+markerID)
+ );
+ if (found.length && (range = found[0].find()))
+ text += getBetween(cm.doc, range.from, range.to).join(lineSep);
+ return;
+ }
+ if (node.getAttribute("contenteditable") == "false") return;
+ for (var i = 0; i < node.childNodes.length; i++)
+ walk(node.childNodes[i]);
+ if (/^(pre|div|p)$/i.test(node.nodeName)) closing = true;
+ } else if (node.nodeType == 3) {
+ var val = node.nodeValue;
+ if (!val) return;
+ if (closing) {
+ text += lineSep;
+ closing = false;
+ }
+ text += val;
+ }
+ }
+ for (;;) {
+ walk(from);
+ if (from == to) break;
+ from = from.nextSibling;
+ }
+ return text;
+ }
+
+ CodeMirror.inputStyles = {
+ textarea: TextareaInput,
+ contenteditable: ContentEditableInput,
+ };
+
+ // SELECTION / CURSOR
+
+ // Selection objects are immutable. A new one is created every time
+ // the selection changes. A selection is one or more non-overlapping
+ // (and non-touching) ranges, sorted, and an integer that indicates
+ // which one is the primary selection (the one that's scrolled into
+ // view, that getCursor returns, etc).
+ function Selection(ranges, primIndex) {
+ this.ranges = ranges;
+ this.primIndex = primIndex;
+ }
+
+ Selection.prototype = {
+ primary: function () {
+ return this.ranges[this.primIndex];
+ },
+ equals: function (other) {
+ if (other == this) return true;
+ if (
+ other.primIndex != this.primIndex ||
+ other.ranges.length != this.ranges.length
+ )
+ return false;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var here = this.ranges[i],
+ there = other.ranges[i];
+ if (
+ cmp(here.anchor, there.anchor) != 0 ||
+ cmp(here.head, there.head) != 0
+ )
+ return false;
+ }
+ return true;
+ },
+ deepCopy: function () {
+ for (var out = [], i = 0; i < this.ranges.length; i++)
+ out[i] = new Range(
+ copyPos(this.ranges[i].anchor),
+ copyPos(this.ranges[i].head)
+ );
+ return new Selection(out, this.primIndex);
+ },
+ somethingSelected: function () {
+ for (var i = 0; i < this.ranges.length; i++)
+ if (!this.ranges[i].empty()) return true;
+ return false;
+ },
+ contains: function (pos, end) {
+ if (!end) end = pos;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var range = this.ranges[i];
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) return i;
+ }
+ return -1;
+ },
+ };
+
+ function Range(anchor, head) {
+ this.anchor = anchor;
+ this.head = head;
+ }
+
+ Range.prototype = {
+ from: function () {
+ return minPos(this.anchor, this.head);
+ },
+ to: function () {
+ return maxPos(this.anchor, this.head);
+ },
+ empty: function () {
+ return (
+ this.head.line == this.anchor.line && this.head.ch == this.anchor.ch
+ );
+ },
+ };
+
+ // Take an unsorted, potentially overlapping set of ranges, and
+ // build a selection out of it. 'Consumes' ranges array (modifying
+ // it).
+ function normalizeSelection(ranges, primIndex) {
+ var prim = ranges[primIndex];
+ ranges.sort(function (a, b) {
+ return cmp(a.from(), b.from());
+ });
+ primIndex = indexOf(ranges, prim);
+ for (var i = 1; i < ranges.length; i++) {
+ var cur = ranges[i],
+ prev = ranges[i - 1];
+ if (cmp(prev.to(), cur.from()) >= 0) {
+ var from = minPos(prev.from(), cur.from()),
+ to = maxPos(prev.to(), cur.to());
+ var inv = prev.empty()
+ ? cur.from() == cur.head
+ : prev.from() == prev.head;
+ if (i <= primIndex) --primIndex;
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+ }
+ }
+ return new Selection(ranges, primIndex);
+ }
+
+ function simpleSelection(anchor, head) {
+ return new Selection([new Range(anchor, head || anchor)], 0);
+ }
+
+ // Most of the external API clips given positions to make sure they
+ // actually exist within the document.
+ function clipLine(doc, n) {
+ return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));
+ }
+ function clipPos(doc, pos) {
+ if (pos.line < doc.first) return Pos(doc.first, 0);
+ var last = doc.first + doc.size - 1;
+ if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
+ return clipToLen(pos, getLine(doc, pos.line).text.length);
+ }
+ function clipToLen(pos, linelen) {
+ var ch = pos.ch;
+ if (ch == null || ch > linelen) return Pos(pos.line, linelen);
+ else if (ch < 0) return Pos(pos.line, 0);
+ else return pos;
+ }
+ function isLine(doc, l) {
+ return l >= doc.first && l < doc.first + doc.size;
+ }
+ function clipPosArray(doc, array) {
+ for (var out = [], i = 0; i < array.length; i++)
+ out[i] = clipPos(doc, array[i]);
+ return out;
+ }
+
+ // SELECTION UPDATES
+
+ // The 'scroll' parameter given to many of these indicated whether
+ // the new cursor position should be scrolled into view after
+ // modifying the selection.
+
+ // If shift is held or the extend flag is set, extends a range to
+ // include a given position (and optionally a second position).
+ // Otherwise, simply returns the range between the given positions.
+ // Used for cursor motion and such.
+ function extendRange(doc, range, head, other) {
+ if ((doc.cm && doc.cm.display.shift) || doc.extend) {
+ var anchor = range.anchor;
+ if (other) {
+ var posBefore = cmp(head, anchor) < 0;
+ if (posBefore != cmp(other, anchor) < 0) {
+ anchor = head;
+ head = other;
+ } else if (posBefore != cmp(head, other) < 0) {
+ head = other;
+ }
+ }
+ return new Range(anchor, head);
+ } else {
+ return new Range(other || head, head);
+ }
+ }
+
+ // Extend the primary selection range, discard the rest.
+ function extendSelection(doc, head, other, options) {
+ setSelection(
+ doc,
+ new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0),
+ options
+ );
+ }
+
+ // Extend all selections (pos is an array of selections with length
+ // equal the number of selections)
+ function extendSelections(doc, heads, options) {
+ for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
+ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
+ var newSel = normalizeSelection(out, doc.sel.primIndex);
+ setSelection(doc, newSel, options);
+ }
+
+ // Updates a single range in the selection.
+ function replaceOneSelection(doc, i, range, options) {
+ var ranges = doc.sel.ranges.slice(0);
+ ranges[i] = range;
+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
+ }
+
+ // Reset the selection to a single range.
+ function setSimpleSelection(doc, anchor, head, options) {
+ setSelection(doc, simpleSelection(anchor, head), options);
+ }
+
+ // Give beforeSelectionChange handlers a change to influence a
+ // selection update.
+ function filterSelectionChange(doc, sel) {
+ var obj = {
+ ranges: sel.ranges,
+ update: function (ranges) {
+ this.ranges = [];
+ for (var i = 0; i < ranges.length; i++)
+ this.ranges[i] = new Range(
+ clipPos(doc, ranges[i].anchor),
+ clipPos(doc, ranges[i].head)
+ );
+ },
+ };
+ signal(doc, "beforeSelectionChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
+ if (obj.ranges != sel.ranges)
+ return normalizeSelection(obj.ranges, obj.ranges.length - 1);
+ else return sel;
+ }
+
+ function setSelectionReplaceHistory(doc, sel, options) {
+ var done = doc.history.done,
+ last = lst(done);
+ if (last && last.ranges) {
+ done[done.length - 1] = sel;
+ setSelectionNoUndo(doc, sel, options);
+ } else {
+ setSelection(doc, sel, options);
+ }
+ }
+
+ // Set a new selection.
+ function setSelection(doc, sel, options) {
+ setSelectionNoUndo(doc, sel, options);
+ addSelectionToHistory(
+ doc,
+ doc.sel,
+ doc.cm ? doc.cm.curOp.id : NaN,
+ options
+ );
+ }
+
+ function setSelectionNoUndo(doc, sel, options) {
+ if (
+ hasHandler(doc, "beforeSelectionChange") ||
+ (doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+ )
+ sel = filterSelectionChange(doc, sel);
+
+ var bias =
+ (options && options.bias) ||
+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+ if (!(options && options.scroll === false) && doc.cm)
+ ensureCursorVisible(doc.cm);
+ }
+
+ function setSelectionInner(doc, sel) {
+ if (sel.equals(doc.sel)) return;
+
+ doc.sel = sel;
+
+ if (doc.cm) {
+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
+ signalCursorActivity(doc.cm);
+ }
+ signalLater(doc, "cursorActivity", doc);
+ }
+
+ // Verify that the selection does not partially select any atomic
+ // marked ranges.
+ function reCheckSelection(doc) {
+ setSelectionInner(
+ doc,
+ skipAtomicInSelection(doc, doc.sel, null, false),
+ sel_dontScroll
+ );
+ }
+
+ // Return a selection that does not partially select any atomic
+ // ranges.
+ function skipAtomicInSelection(doc, sel, bias, mayClear) {
+ var out;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
+ var newHead = skipAtomic(doc, range.head, bias, mayClear);
+ if (out || newAnchor != range.anchor || newHead != range.head) {
+ if (!out) out = sel.ranges.slice(0, i);
+ out[i] = new Range(newAnchor, newHead);
+ }
+ }
+ return out ? normalizeSelection(out, sel.primIndex) : sel;
+ }
+
+ // Ensure a given position is not inside an atomic range.
+ function skipAtomic(doc, pos, bias, mayClear) {
+ var flipped = false,
+ curPos = pos;
+ var dir = bias || 1;
+ doc.cantEdit = false;
+ search: for (;;) {
+ var line = getLine(doc, curPos.line);
+ if (line.markedSpans) {
+ for (var i = 0; i < line.markedSpans.length; ++i) {
+ var sp = line.markedSpans[i],
+ m = sp.marker;
+ if (
+ (sp.from == null ||
+ (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
+ (sp.to == null ||
+ (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))
+ ) {
+ if (mayClear) {
+ signal(m, "beforeCursorEnter");
+ if (m.explicitlyCleared) {
+ if (!line.markedSpans) break;
+ else {
+ --i;
+ continue;
+ }
+ }
+ }
+ if (!m.atomic) continue;
+ var newPos = m.find(dir < 0 ? -1 : 1);
+ if (cmp(newPos, curPos) == 0) {
+ newPos.ch += dir;
+ if (newPos.ch < 0) {
+ if (newPos.line > doc.first)
+ newPos = clipPos(doc, Pos(newPos.line - 1));
+ else newPos = null;
+ } else if (newPos.ch > line.text.length) {
+ if (newPos.line < doc.first + doc.size - 1)
+ newPos = Pos(newPos.line + 1, 0);
+ else newPos = null;
+ }
+ if (!newPos) {
+ if (flipped) {
+ // Driven in a corner -- no valid cursor position found at all
+ // -- try again *with* clearing, if we didn't already
+ if (!mayClear) return skipAtomic(doc, pos, bias, true);
+ // Otherwise, turn off editing until further notice, and return the start of the doc
+ doc.cantEdit = true;
+ return Pos(doc.first, 0);
+ }
+ flipped = true;
+ newPos = pos;
+ dir = -dir;
+ }
+ }
+ curPos = newPos;
+ continue search;
+ }
+ }
+ }
+ return curPos;
+ }
+ }
+
+ // SELECTION DRAWING
+
+ function updateSelection(cm) {
+ cm.display.input.showSelection(cm.display.input.prepareSelection());
+ }
+
+ function prepareSelection(cm, primary) {
+ var doc = cm.doc,
+ result = {};
+ var curFragment = (result.cursors = document.createDocumentFragment());
+ var selFragment = (result.selection = document.createDocumentFragment());
+
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ if (primary === false && i == doc.sel.primIndex) continue;
+ var range = doc.sel.ranges[i];
+ var collapsed = range.empty();
+ if (collapsed || cm.options.showCursorWhenSelecting)
+ drawSelectionCursor(cm, range.head, curFragment);
+ if (!collapsed) drawSelectionRange(cm, range, selFragment);
+ }
+ return result;
+ }
+
+ // Draws a cursor for the given range
+ function drawSelectionCursor(cm, head, output) {
+ var pos = cursorCoords(
+ cm,
+ head,
+ "div",
+ null,
+ null,
+ !cm.options.singleCursorHeightPerLine
+ );
+
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+ cursor.style.left = pos.left + "px";
+ cursor.style.top = pos.top + "px";
+ cursor.style.height =
+ Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+ if (pos.other) {
+ // Secondary cursor, shown when on a 'jump' in bi-directional text
+ var otherCursor = output.appendChild(
+ elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")
+ );
+ otherCursor.style.display = "";
+ otherCursor.style.left = pos.other.left + "px";
+ otherCursor.style.top = pos.other.top + "px";
+ otherCursor.style.height =
+ (pos.other.bottom - pos.other.top) * 0.85 + "px";
+ }
+ }
+
+ // Draws the given range as a highlighted selection
+ function drawSelectionRange(cm, range, output) {
+ var display = cm.display,
+ doc = cm.doc;
+ var fragment = document.createDocumentFragment();
+ var padding = paddingH(cm.display),
+ leftSide = padding.left;
+ var rightSide =
+ Math.max(
+ display.sizerWidth,
+ displayWidth(cm) - display.sizer.offsetLeft
+ ) - padding.right;
+
+ function add(left, top, width, bottom) {
+ if (top < 0) top = 0;
+ top = Math.round(top);
+ bottom = Math.round(bottom);
+ fragment.appendChild(
+ elt(
+ "div",
+ null,
+ "CodeMirror-selected",
+ "position: absolute; left: " +
+ left +
+ "px; top: " +
+ top +
+ "px; width: " +
+ (width == null ? rightSide - left : width) +
+ "px; height: " +
+ (bottom - top) +
+ "px"
+ )
+ );
+ }
+
+ function drawForLine(line, fromArg, toArg) {
+ var lineObj = getLine(doc, line);
+ var lineLen = lineObj.text.length;
+ var start, end;
+ function coords(ch, bias) {
+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
+ }
+
+ iterateBidiSections(
+ getOrder(lineObj),
+ fromArg || 0,
+ toArg == null ? lineLen : toArg,
+ function (from, to, dir) {
+ var leftPos = coords(from, "left"),
+ rightPos,
+ left,
+ right;
+ if (from == to) {
+ rightPos = leftPos;
+ left = right = leftPos.left;
+ } else {
+ rightPos = coords(to - 1, "right");
+ if (dir == "rtl") {
+ var tmp = leftPos;
+ leftPos = rightPos;
+ rightPos = tmp;
+ }
+ left = leftPos.left;
+ right = rightPos.right;
+ }
+ if (fromArg == null && from == 0) left = leftSide;
+ if (rightPos.top - leftPos.top > 3) {
+ // Different lines, draw top part
+ add(left, leftPos.top, null, leftPos.bottom);
+ left = leftSide;
+ if (leftPos.bottom < rightPos.top)
+ add(left, leftPos.bottom, null, rightPos.top);
+ }
+ if (toArg == null && to == lineLen) right = rightSide;
+ if (
+ !start ||
+ leftPos.top < start.top ||
+ (leftPos.top == start.top && leftPos.left < start.left)
+ )
+ start = leftPos;
+ if (
+ !end ||
+ rightPos.bottom > end.bottom ||
+ (rightPos.bottom == end.bottom && rightPos.right > end.right)
+ )
+ end = rightPos;
+ if (left < leftSide + 1) left = leftSide;
+ add(left, rightPos.top, right - left, rightPos.bottom);
+ }
+ );
+ return { start: start, end: end };
+ }
+
+ var sFrom = range.from(),
+ sTo = range.to();
+ if (sFrom.line == sTo.line) {
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+ } else {
+ var fromLine = getLine(doc, sFrom.line),
+ toLine = getLine(doc, sTo.line);
+ var singleVLine = visualLine(fromLine) == visualLine(toLine);
+ var leftEnd = drawForLine(
+ sFrom.line,
+ sFrom.ch,
+ singleVLine ? fromLine.text.length + 1 : null
+ ).end;
+ var rightStart = drawForLine(
+ sTo.line,
+ singleVLine ? 0 : null,
+ sTo.ch
+ ).start;
+ if (singleVLine) {
+ if (leftEnd.top < rightStart.top - 2) {
+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+ } else {
+ add(
+ leftEnd.right,
+ leftEnd.top,
+ rightStart.left - leftEnd.right,
+ leftEnd.bottom
+ );
+ }
+ }
+ if (leftEnd.bottom < rightStart.top)
+ add(leftSide, leftEnd.bottom, null, rightStart.top);
+ }
+
+ output.appendChild(fragment);
+ }
+
+ // Cursor-blinking
+ function restartBlink(cm) {
+ if (!cm.state.focused) return;
+ var display = cm.display;
+ clearInterval(display.blinker);
+ var on = true;
+ display.cursorDiv.style.visibility = "";
+ if (cm.options.cursorBlinkRate > 0)
+ display.blinker = setInterval(function () {
+ display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
+ }, cm.options.cursorBlinkRate);
+ else if (cm.options.cursorBlinkRate < 0)
+ display.cursorDiv.style.visibility = "hidden";
+ }
+
+ // HIGHLIGHT WORKER
+
+ function startWorker(cm, time) {
+ if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+ cm.state.highlight.set(time, bind(highlightWorker, cm));
+ }
+
+ function highlightWorker(cm) {
+ var doc = cm.doc;
+ if (doc.frontier < doc.first) doc.frontier = doc.first;
+ if (doc.frontier >= cm.display.viewTo) return;
+ var end = +new Date() + cm.options.workTime;
+ var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
+ var changedLines = [];
+
+ doc.iter(
+ doc.frontier,
+ Math.min(doc.first + doc.size, cm.display.viewTo + 500),
+ function (line) {
+ if (doc.frontier >= cm.display.viewFrom) {
+ // Visible
+ var oldStyles = line.styles,
+ tooLong = line.text.length > cm.options.maxHighlightLength;
+ var highlighted = highlightLine(
+ cm,
+ line,
+ tooLong ? copyState(doc.mode, state) : state,
+ true
+ );
+ line.styles = highlighted.styles;
+ var oldCls = line.styleClasses,
+ newCls = highlighted.classes;
+ if (newCls) line.styleClasses = newCls;
+ else if (oldCls) line.styleClasses = null;
+ var ischange =
+ !oldStyles ||
+ oldStyles.length != line.styles.length ||
+ (oldCls != newCls &&
+ (!oldCls ||
+ !newCls ||
+ oldCls.bgClass != newCls.bgClass ||
+ oldCls.textClass != newCls.textClass));
+ for (var i = 0; !ischange && i < oldStyles.length; ++i)
+ ischange = oldStyles[i] != line.styles[i];
+ if (ischange) changedLines.push(doc.frontier);
+ line.stateAfter = tooLong ? state : copyState(doc.mode, state);
+ } else {
+ if (line.text.length <= cm.options.maxHighlightLength)
+ processLine(cm, line.text, state);
+ line.stateAfter =
+ doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
+ }
+ ++doc.frontier;
+ if (+new Date() > end) {
+ startWorker(cm, cm.options.workDelay);
+ return true;
+ }
+ }
+ );
+ if (changedLines.length)
+ runInOp(cm, function () {
+ for (var i = 0; i < changedLines.length; i++)
+ regLineChange(cm, changedLines[i], "text");
+ });
+ }
+
+ // Finds the line to start with when starting a parse. Tries to
+ // find a line with a stateAfter, so that it can start with a
+ // valid state. If that fails, it returns the line with the
+ // smallest indentation, which tends to need the least context to
+ // parse correctly.
+ function findStartLine(cm, n, precise) {
+ var minindent,
+ minline,
+ doc = cm.doc;
+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+ for (var search = n; search > lim; --search) {
+ if (search <= doc.first) return doc.first;
+ var line = getLine(doc, search - 1);
+ if (line.stateAfter && (!precise || search <= doc.frontier))
+ return search;
+ var indented = countColumn(line.text, null, cm.options.tabSize);
+ if (minline == null || minindent > indented) {
+ minline = search - 1;
+ minindent = indented;
+ }
+ }
+ return minline;
+ }
+
+ function getStateBefore(cm, n, precise) {
+ var doc = cm.doc,
+ display = cm.display;
+ if (!doc.mode.startState) return true;
+ var pos = findStartLine(cm, n, precise),
+ state = pos > doc.first && getLine(doc, pos - 1).stateAfter;
+ if (!state) state = startState(doc.mode);
+ else state = copyState(doc.mode, state);
+ doc.iter(pos, n, function (line) {
+ processLine(cm, line.text, state);
+ var save =
+ pos == n - 1 ||
+ pos % 5 == 0 ||
+ (pos >= display.viewFrom && pos < display.viewTo);
+ line.stateAfter = save ? copyState(doc.mode, state) : null;
+ ++pos;
+ });
+ if (precise) doc.frontier = pos;
+ return state;
+ }
+
+ // POSITION MEASUREMENT
+
+ function paddingTop(display) {
+ return display.lineSpace.offsetTop;
+ }
+ function paddingVert(display) {
+ return display.mover.offsetHeight - display.lineSpace.offsetHeight;
+ }
+ function paddingH(display) {
+ if (display.cachedPaddingH) return display.cachedPaddingH;
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
+ var style = window.getComputedStyle
+ ? window.getComputedStyle(e)
+ : e.currentStyle;
+ var data = {
+ left: parseInt(style.paddingLeft),
+ right: parseInt(style.paddingRight),
+ };
+ if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
+ return data;
+ }
+
+ function scrollGap(cm) {
+ return scrollerGap - cm.display.nativeBarWidth;
+ }
+ function displayWidth(cm) {
+ return (
+ cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
+ );
+ }
+ function displayHeight(cm) {
+ return (
+ cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
+ );
+ }
+
+ // Ensure the lineView.wrapping.heights array is populated. This is
+ // an array of bottom offsets for the lines that make up a drawn
+ // line. When lineWrapping is on, there might be more than one
+ // height.
+ function ensureLineHeights(cm, lineView, rect) {
+ var wrapping = cm.options.lineWrapping;
+ var curWidth = wrapping && displayWidth(cm);
+ if (
+ !lineView.measure.heights ||
+ (wrapping && lineView.measure.width != curWidth)
+ ) {
+ var heights = (lineView.measure.heights = []);
+ if (wrapping) {
+ lineView.measure.width = curWidth;
+ var rects = lineView.text.firstChild.getClientRects();
+ for (var i = 0; i < rects.length - 1; i++) {
+ var cur = rects[i],
+ next = rects[i + 1];
+ if (Math.abs(cur.bottom - next.bottom) > 2)
+ heights.push((cur.bottom + next.top) / 2 - rect.top);
+ }
+ }
+ heights.push(rect.bottom - rect.top);
+ }
+ }
+
+ // Find a line map (mapping character offsets to text nodes) and a
+ // measurement cache for the given line number. (A line view might
+ // contain multiple lines when collapsed ranges are present.)
+ function mapFromLineView(lineView, line, lineN) {
+ if (lineView.line == line)
+ return { map: lineView.measure.map, cache: lineView.measure.cache };
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineView.rest[i] == line)
+ return {
+ map: lineView.measure.maps[i],
+ cache: lineView.measure.caches[i],
+ };
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineNo(lineView.rest[i]) > lineN)
+ return {
+ map: lineView.measure.maps[i],
+ cache: lineView.measure.caches[i],
+ before: true,
+ };
+ }
+
+ // Render a line into the hidden node display.externalMeasured. Used
+ // when measurement is needed for a line that's not in the viewport.
+ function updateExternalMeasurement(cm, line) {
+ line = visualLine(line);
+ var lineN = lineNo(line);
+ var view = (cm.display.externalMeasured = new LineView(
+ cm.doc,
+ line,
+ lineN
+ ));
+ view.lineN = lineN;
+ var built = (view.built = buildLineContent(cm, view));
+ view.text = built.pre;
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+ return view;
+ }
+
+ // Get a {top, bottom, left, right} box (in line-local coordinates)
+ // for a given character.
+ function measureChar(cm, line, ch, bias) {
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
+ }
+
+ // Find a line view that corresponds to the given line number.
+ function findViewForLine(cm, lineN) {
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+ return cm.display.view[findViewIndex(cm, lineN)];
+ var ext = cm.display.externalMeasured;
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) return ext;
+ }
+
+ // Measurement can be split in two steps, the set-up work that
+ // applies to the whole line, and the measurement of the actual
+ // character. Functions like coordsChar, that need to do a lot of
+ // measurements in a row, can thus ensure that the set-up work is
+ // only done once.
+ function prepareMeasureForLine(cm, line) {
+ var lineN = lineNo(line);
+ var view = findViewForLine(cm, lineN);
+ if (view && !view.text) {
+ view = null;
+ } else if (view && view.changes) {
+ updateLineForChanges(cm, view, lineN, getDimensions(cm));
+ cm.curOp.forceUpdate = true;
+ }
+ if (!view) view = updateExternalMeasurement(cm, line);
+
+ var info = mapFromLineView(view, line, lineN);
+ return {
+ line: line,
+ view: view,
+ rect: null,
+ map: info.map,
+ cache: info.cache,
+ before: info.before,
+ hasHeights: false,
+ };
+ }
+
+ // Given a prepared measurement object, measures the position of an
+ // actual character (or fetches it from the cache).
+ function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+ if (prepared.before) ch = -1;
+ var key = ch + (bias || ""),
+ found;
+ if (prepared.cache.hasOwnProperty(key)) {
+ found = prepared.cache[key];
+ } else {
+ if (!prepared.rect)
+ prepared.rect = prepared.view.text.getBoundingClientRect();
+ if (!prepared.hasHeights) {
+ ensureLineHeights(cm, prepared.view, prepared.rect);
+ prepared.hasHeights = true;
+ }
+ found = measureCharInner(cm, prepared, ch, bias);
+ if (!found.bogus) prepared.cache[key] = found;
+ }
+ return {
+ left: found.left,
+ right: found.right,
+ top: varHeight ? found.rtop : found.top,
+ bottom: varHeight ? found.rbottom : found.bottom,
+ };
+ }
+
+ var nullRect = { left: 0, right: 0, top: 0, bottom: 0 };
+
+ function nodeAndOffsetInLineMap(map, ch, bias) {
+ var node, start, end, collapse;
+ // First, search the line map for the text node corresponding to,
+ // or closest to, the target character.
+ for (var i = 0; i < map.length; i += 3) {
+ var mStart = map[i],
+ mEnd = map[i + 1];
+ if (ch < mStart) {
+ start = 0;
+ end = 1;
+ collapse = "left";
+ } else if (ch < mEnd) {
+ start = ch - mStart;
+ end = start + 1;
+ } else if (i == map.length - 3 || (ch == mEnd && map[i + 3] > ch)) {
+ end = mEnd - mStart;
+ start = end - 1;
+ if (ch >= mEnd) collapse = "right";
+ }
+ if (start != null) {
+ node = map[i + 2];
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+ collapse = bias;
+ if (bias == "left" && start == 0)
+ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+ node = map[(i -= 3) + 2];
+ collapse = "left";
+ }
+ if (bias == "right" && start == mEnd - mStart)
+ while (
+ i < map.length - 3 &&
+ map[i + 3] == map[i + 4] &&
+ !map[i + 5].insertLeft
+ ) {
+ node = map[(i += 3) + 2];
+ collapse = "right";
+ }
+ break;
+ }
+ }
+ return {
+ node: node,
+ start: start,
+ end: end,
+ collapse: collapse,
+ coverStart: mStart,
+ coverEnd: mEnd,
+ };
+ }
+
+ function measureCharInner(cm, prepared, ch, bias) {
+ var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+ var node = place.node,
+ start = place.start,
+ end = place.end,
+ collapse = place.collapse;
+
+ var rect;
+ if (node.nodeType == 3) {
+ // If it is a text node, use a range to retrieve the coordinates.
+ for (var i = 0; i < 4; i++) {
+ // Retry a maximum of 4 times when nonsense rectangles are returned
+ while (
+ start &&
+ isExtendingChar(prepared.line.text.charAt(place.coverStart + start))
+ )
+ --start;
+ while (
+ place.coverStart + end < place.coverEnd &&
+ isExtendingChar(prepared.line.text.charAt(place.coverStart + end))
+ )
+ ++end;
+ if (
+ ie &&
+ ie_version < 9 &&
+ start == 0 &&
+ end == place.coverEnd - place.coverStart
+ ) {
+ rect = node.parentNode.getBoundingClientRect();
+ } else if (ie && cm.options.lineWrapping) {
+ var rects = range(node, start, end).getClientRects();
+ if (rects.length)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else rect = nullRect;
+ } else {
+ rect = range(node, start, end).getBoundingClientRect() || nullRect;
+ }
+ if (rect.left || rect.right || start == 0) break;
+ end = start;
+ start = start - 1;
+ collapse = "right";
+ }
+ if (ie && ie_version < 11)
+ rect = maybeUpdateRectForZooming(cm.display.measure, rect);
+ } else {
+ // If it is a widget, simply get the box for the whole widget.
+ if (start > 0) collapse = bias = "right";
+ var rects;
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else rect = node.getBoundingClientRect();
+ }
+ if (
+ ie &&
+ ie_version < 9 &&
+ !start &&
+ (!rect || (!rect.left && !rect.right))
+ ) {
+ var rSpan = node.parentNode.getClientRects()[0];
+ if (rSpan)
+ rect = {
+ left: rSpan.left,
+ right: rSpan.left + charWidth(cm.display),
+ top: rSpan.top,
+ bottom: rSpan.bottom,
+ };
+ else rect = nullRect;
+ }
+
+ var rtop = rect.top - prepared.rect.top,
+ rbot = rect.bottom - prepared.rect.top;
+ var mid = (rtop + rbot) / 2;
+ var heights = prepared.view.measure.heights;
+ for (var i = 0; i < heights.length - 1; i++) if (mid < heights[i]) break;
+ var top = i ? heights[i - 1] : 0,
+ bot = heights[i];
+ var result = {
+ left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+ top: top,
+ bottom: bot,
+ };
+ if (!rect.left && !rect.right) result.bogus = true;
+ if (!cm.options.singleCursorHeightPerLine) {
+ result.rtop = rtop;
+ result.rbottom = rbot;
+ }
+
+ return result;
+ }
+
+ // Work around problem with bounding client rects on ranges being
+ // returned incorrectly when zoomed on IE10 and below.
+ function maybeUpdateRectForZooming(measure, rect) {
+ if (
+ !window.screen ||
+ screen.logicalXDPI == null ||
+ screen.logicalXDPI == screen.deviceXDPI ||
+ !hasBadZoomedRects(measure)
+ )
+ return rect;
+ var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+ var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+ return {
+ left: rect.left * scaleX,
+ right: rect.right * scaleX,
+ top: rect.top * scaleY,
+ bottom: rect.bottom * scaleY,
+ };
+ }
+
+ function clearLineMeasurementCacheFor(lineView) {
+ if (lineView.measure) {
+ lineView.measure.cache = {};
+ lineView.measure.heights = null;
+ if (lineView.rest)
+ for (var i = 0; i < lineView.rest.length; i++)
+ lineView.measure.caches[i] = {};
+ }
+ }
+
+ function clearLineMeasurementCache(cm) {
+ cm.display.externalMeasure = null;
+ removeChildren(cm.display.lineMeasure);
+ for (var i = 0; i < cm.display.view.length; i++)
+ clearLineMeasurementCacheFor(cm.display.view[i]);
+ }
+
+ function clearCaches(cm) {
+ clearLineMeasurementCache(cm);
+ cm.display.cachedCharWidth =
+ cm.display.cachedTextHeight =
+ cm.display.cachedPaddingH =
+ null;
+ if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
+ cm.display.lineNumChars = null;
+ }
+
+ function pageScrollX() {
+ return (
+ window.pageXOffset ||
+ (document.documentElement || document.body).scrollLeft
+ );
+ }
+ function pageScrollY() {
+ return (
+ window.pageYOffset ||
+ (document.documentElement || document.body).scrollTop
+ );
+ }
+
+ // Converts a {top, bottom, left, right} box from line-local
+ // coordinates into another coordinate system. Context may be one of
+ // "line", "div" (display.lineDiv), "local"/null (editor), "window",
+ // or "page".
+ function intoCoordSystem(cm, lineObj, rect, context) {
+ if (lineObj.widgets)
+ for (var i = 0; i < lineObj.widgets.length; ++i)
+ if (lineObj.widgets[i].above) {
+ var size = widgetHeight(lineObj.widgets[i]);
+ rect.top += size;
+ rect.bottom += size;
+ }
+ if (context == "line") return rect;
+ if (!context) context = "local";
+ var yOff = heightAtLine(lineObj);
+ if (context == "local") yOff += paddingTop(cm.display);
+ else yOff -= cm.display.viewOffset;
+ if (context == "page" || context == "window") {
+ var lOff = cm.display.lineSpace.getBoundingClientRect();
+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+ rect.left += xOff;
+ rect.right += xOff;
+ }
+ rect.top += yOff;
+ rect.bottom += yOff;
+ return rect;
+ }
+
+ // Coverts a box from "div" coords to another coordinate system.
+ // Context may be "window", "page", "div", or "local"/null.
+ function fromCoordSystem(cm, coords, context) {
+ if (context == "div") return coords;
+ var left = coords.left,
+ top = coords.top;
+ // First move into "page" coordinate system
+ if (context == "page") {
+ left -= pageScrollX();
+ top -= pageScrollY();
+ } else if (context == "local" || !context) {
+ var localBox = cm.display.sizer.getBoundingClientRect();
+ left += localBox.left;
+ top += localBox.top;
+ }
+
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+ return { left: left - lineSpaceBox.left, top: top - lineSpaceBox.top };
+ }
+
+ function charCoords(cm, pos, context, lineObj, bias) {
+ if (!lineObj) lineObj = getLine(cm.doc, pos.line);
+ return intoCoordSystem(
+ cm,
+ lineObj,
+ measureChar(cm, lineObj, pos.ch, bias),
+ context
+ );
+ }
+
+ // Returns a box for a given cursor position, which may have an
+ // 'other' property containing the position of the secondary cursor
+ // on a bidi boundary.
+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+ lineObj = lineObj || getLine(cm.doc, pos.line);
+ if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
+ function get(ch, right) {
+ var m = measureCharPrepared(
+ cm,
+ preparedMeasure,
+ ch,
+ right ? "right" : "left",
+ varHeight
+ );
+ if (right) m.left = m.right;
+ else m.right = m.left;
+ return intoCoordSystem(cm, lineObj, m, context);
+ }
+ function getBidi(ch, partPos) {
+ var part = order[partPos],
+ right = part.level % 2;
+ if (
+ ch == bidiLeft(part) &&
+ partPos &&
+ part.level < order[partPos - 1].level
+ ) {
+ part = order[--partPos];
+ ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
+ right = true;
+ } else if (
+ ch == bidiRight(part) &&
+ partPos < order.length - 1 &&
+ part.level < order[partPos + 1].level
+ ) {
+ part = order[++partPos];
+ ch = bidiLeft(part) - (part.level % 2);
+ right = false;
+ }
+ if (right && ch == part.to && ch > part.from) return get(ch - 1);
+ return get(ch, right);
+ }
+ var order = getOrder(lineObj),
+ ch = pos.ch;
+ if (!order) return get(ch);
+ var partPos = getBidiPartAt(order, ch);
+ var val = getBidi(ch, partPos);
+ if (bidiOther != null) val.other = getBidi(ch, bidiOther);
+ return val;
+ }
+
+ // Used to cheaply estimate the coordinates for a position. Used for
+ // intermediate scroll updates.
+ function estimateCoords(cm, pos) {
+ var left = 0,
+ pos = clipPos(cm.doc, pos);
+ if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
+ var lineObj = getLine(cm.doc, pos.line);
+ var top = heightAtLine(lineObj) + paddingTop(cm.display);
+ return { left: left, right: left, top: top, bottom: top + lineObj.height };
+ }
+
+ // Positions returned by coordsChar contain some extra information.
+ // xRel is the relative x position of the input coordinates compared
+ // to the found position (so xRel > 0 means the coordinates are to
+ // the right of the character position, for example). When outside
+ // is true, that means the coordinates lie outside the line's
+ // vertical range.
+ function PosWithInfo(line, ch, outside, xRel) {
+ var pos = Pos(line, ch);
+ pos.xRel = xRel;
+ if (outside) pos.outside = true;
+ return pos;
+ }
+
+ // Compute the character position closest to the given coordinates.
+ // Input must be lineSpace-local ("div" coordinate system).
+ function coordsChar(cm, x, y) {
+ var doc = cm.doc;
+ y += cm.display.viewOffset;
+ if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
+ var lineN = lineAtHeight(doc, y),
+ last = doc.first + doc.size - 1;
+ if (lineN > last)
+ return PosWithInfo(
+ doc.first + doc.size - 1,
+ getLine(doc, last).text.length,
+ true,
+ 1
+ );
+ if (x < 0) x = 0;
+
+ var lineObj = getLine(doc, lineN);
+ for (;;) {
+ var found = coordsCharInner(cm, lineObj, lineN, x, y);
+ var merged = collapsedSpanAtEnd(lineObj);
+ var mergedPos = merged && merged.find(0, true);
+ if (
+ merged &&
+ (found.ch > mergedPos.from.ch ||
+ (found.ch == mergedPos.from.ch && found.xRel > 0))
+ )
+ lineN = lineNo((lineObj = mergedPos.to.line));
+ else return found;
+ }
+ }
+
+ function coordsCharInner(cm, lineObj, lineNo, x, y) {
+ var innerOff = y - heightAtLine(lineObj);
+ var wrongLine = false,
+ adjust = 2 * cm.display.wrapper.clientWidth;
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+
+ function getX(ch) {
+ var sp = cursorCoords(
+ cm,
+ Pos(lineNo, ch),
+ "line",
+ lineObj,
+ preparedMeasure
+ );
+ wrongLine = true;
+ if (innerOff > sp.bottom) return sp.left - adjust;
+ else if (innerOff < sp.top) return sp.left + adjust;
+ else wrongLine = false;
+ return sp.left;
+ }
+
+ var bidi = getOrder(lineObj),
+ dist = lineObj.text.length;
+ var from = lineLeft(lineObj),
+ to = lineRight(lineObj);
+ var fromX = getX(from),
+ fromOutside = wrongLine,
+ toX = getX(to),
+ toOutside = wrongLine;
+
+ if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
+ // Do a binary search between these bounds.
+ for (;;) {
+ if (
+ bidi
+ ? to == from || to == moveVisually(lineObj, from, 1)
+ : to - from <= 1
+ ) {
+ var ch = x < fromX || x - fromX <= toX - x ? from : to;
+ var xDiff = x - (ch == from ? fromX : toX);
+ while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
+ var pos = PosWithInfo(
+ lineNo,
+ ch,
+ ch == from ? fromOutside : toOutside,
+ xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0
+ );
+ return pos;
+ }
+ var step = Math.ceil(dist / 2),
+ middle = from + step;
+ if (bidi) {
+ middle = from;
+ for (var i = 0; i < step; ++i)
+ middle = moveVisually(lineObj, middle, 1);
+ }
+ var middleX = getX(middle);
+ if (middleX > x) {
+ to = middle;
+ toX = middleX;
+ if ((toOutside = wrongLine)) toX += 1000;
+ dist = step;
+ } else {
+ from = middle;
+ fromX = middleX;
+ fromOutside = wrongLine;
+ dist -= step;
+ }
+ }
+ }
+
+ var measureText;
+ // Compute the default text height.
+ function textHeight(display) {
+ if (display.cachedTextHeight != null) return display.cachedTextHeight;
+ if (measureText == null) {
+ measureText = elt("pre");
+ // Measure a bunch of lines, for browsers that compute
+ // fractional heights.
+ for (var i = 0; i < 49; ++i) {
+ measureText.appendChild(document.createTextNode("x"));
+ measureText.appendChild(elt("br"));
+ }
+ measureText.appendChild(document.createTextNode("x"));
+ }
+ removeChildrenAndAdd(display.measure, measureText);
+ var height = measureText.offsetHeight / 50;
+ if (height > 3) display.cachedTextHeight = height;
+ removeChildren(display.measure);
+ return height || 1;
+ }
+
+ // Compute the default character width.
+ function charWidth(display) {
+ if (display.cachedCharWidth != null) return display.cachedCharWidth;
+ var anchor = elt("span", "xxxxxxxxxx");
+ var pre = elt("pre", [anchor]);
+ removeChildrenAndAdd(display.measure, pre);
+ var rect = anchor.getBoundingClientRect(),
+ width = (rect.right - rect.left) / 10;
+ if (width > 2) display.cachedCharWidth = width;
+ return width || 10;
+ }
+
+ // OPERATIONS
+
+ // Operations are used to wrap a series of changes to the editor
+ // state in such a way that each change won't have to update the
+ // cursor and display (which would be awkward, slow, and
+ // error-prone). Instead, display updates are batched and then all
+ // combined and executed at once.
+
+ var operationGroup = null;
+
+ var nextOpId = 0;
+ // Start a new operation.
+ function startOperation(cm) {
+ cm.curOp = {
+ cm: cm,
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
+ forceUpdate: false, // Used to force a redraw
+ updateInput: null, // Whether to reset the input textarea
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
+ changeObjs: null, // Accumulated changes, for firing change events
+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+ selectionChanged: false, // Whether the selection needs to be redrawn
+ updateMaxLine: false, // Set when the widest line needs to be determined anew
+ scrollLeft: null,
+ scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+ scrollToPos: null, // Used to scroll to a specific position
+ focus: false,
+ id: ++nextOpId, // Unique ID
+ };
+ if (operationGroup) {
+ operationGroup.ops.push(cm.curOp);
+ } else {
+ cm.curOp.ownsGroup = operationGroup = {
+ ops: [cm.curOp],
+ delayedCallbacks: [],
+ };
+ }
+ }
+
+ function fireCallbacksForOps(group) {
+ // Calls delayed callbacks and cursorActivity handlers until no
+ // new ones appear
+ var callbacks = group.delayedCallbacks,
+ i = 0;
+ do {
+ for (; i < callbacks.length; i++) callbacks[i].call(null);
+ for (var j = 0; j < group.ops.length; j++) {
+ var op = group.ops[j];
+ if (op.cursorActivityHandlers)
+ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+ op.cursorActivityHandlers[op.cursorActivityCalled++].call(
+ null,
+ op.cm
+ );
+ }
+ } while (i < callbacks.length);
+ }
+
+ // Finish an operation, updating the display and signalling delayed events
+ function endOperation(cm) {
+ var op = cm.curOp,
+ group = op.ownsGroup;
+ if (!group) return;
+
+ try {
+ fireCallbacksForOps(group);
+ } finally {
+ operationGroup = null;
+ for (var i = 0; i < group.ops.length; i++) group.ops[i].cm.curOp = null;
+ endOperations(group);
+ }
+ }
+
+ // The DOM updates done when an operation finishes are batched so
+ // that the minimum number of relayouts are required.
+ function endOperations(group) {
+ var ops = group.ops;
+ for (
+ var i = 0;
+ i < ops.length;
+ i++ // Read DOM
+ )
+ endOperation_R1(ops[i]);
+ for (
+ var i = 0;
+ i < ops.length;
+ i++ // Write DOM (maybe)
+ )
+ endOperation_W1(ops[i]);
+ for (
+ var i = 0;
+ i < ops.length;
+ i++ // Read DOM
+ )
+ endOperation_R2(ops[i]);
+ for (
+ var i = 0;
+ i < ops.length;
+ i++ // Write DOM (maybe)
+ )
+ endOperation_W2(ops[i]);
+ for (
+ var i = 0;
+ i < ops.length;
+ i++ // Read DOM
+ )
+ endOperation_finish(ops[i]);
+ }
+
+ function endOperation_R1(op) {
+ var cm = op.cm,
+ display = cm.display;
+ maybeClipScrollbars(cm);
+ if (op.updateMaxLine) findMaxLine(cm);
+
+ op.mustUpdate =
+ op.viewChanged ||
+ op.forceUpdate ||
+ op.scrollTop != null ||
+ (op.scrollToPos &&
+ (op.scrollToPos.from.line < display.viewFrom ||
+ op.scrollToPos.to.line >= display.viewTo)) ||
+ (display.maxLineChanged && cm.options.lineWrapping);
+ op.update =
+ op.mustUpdate &&
+ new DisplayUpdate(
+ cm,
+ op.mustUpdate && { top: op.scrollTop, ensure: op.scrollToPos },
+ op.forceUpdate
+ );
+ }
+
+ function endOperation_W1(op) {
+ op.updatedDisplay =
+ op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+ }
+
+ function endOperation_R2(op) {
+ var cm = op.cm,
+ display = cm.display;
+ if (op.updatedDisplay) updateHeightsInViewport(cm);
+
+ op.barMeasure = measureForScrollbars(cm);
+
+ // If the max line changed since it was last measured, measure it,
+ // and ensure the document's width matches it.
+ // updateDisplay_W2 will use these properties to do the actual resizing
+ if (display.maxLineChanged && !cm.options.lineWrapping) {
+ op.adjustWidthTo =
+ measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+ cm.display.sizerWidth = op.adjustWidthTo;
+ op.barMeasure.scrollWidth = Math.max(
+ display.scroller.clientWidth,
+ display.sizer.offsetLeft +
+ op.adjustWidthTo +
+ scrollGap(cm) +
+ cm.display.barWidth
+ );
+ op.maxScrollLeft = Math.max(
+ 0,
+ display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)
+ );
+ }
+
+ if (op.updatedDisplay || op.selectionChanged)
+ op.preparedSelection = display.input.prepareSelection();
+ }
+
+ function endOperation_W2(op) {
+ var cm = op.cm;
+
+ if (op.adjustWidthTo != null) {
+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+ if (op.maxScrollLeft < cm.doc.scrollLeft)
+ setScrollLeft(
+ cm,
+ Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft),
+ true
+ );
+ cm.display.maxLineChanged = false;
+ }
+
+ if (op.preparedSelection)
+ cm.display.input.showSelection(op.preparedSelection);
+ if (op.updatedDisplay) setDocumentHeight(cm, op.barMeasure);
+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
+ updateScrollbars(cm, op.barMeasure);
+
+ if (op.selectionChanged) restartBlink(cm);
+
+ if (cm.state.focused && op.updateInput) cm.display.input.reset(op.typing);
+ if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);
+ }
+
+ function endOperation_finish(op) {
+ var cm = op.cm,
+ display = cm.display,
+ doc = cm.doc;
+
+ if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
+
+ // Abort mouse wheel delta measurement, when scrolling explicitly
+ if (
+ display.wheelStartX != null &&
+ (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)
+ )
+ display.wheelStartX = display.wheelStartY = null;
+
+ // Propagate the scroll position to the actual DOM scroller
+ if (
+ op.scrollTop != null &&
+ (display.scroller.scrollTop != op.scrollTop || op.forceScroll)
+ ) {
+ doc.scrollTop = Math.max(
+ 0,
+ Math.min(
+ display.scroller.scrollHeight - display.scroller.clientHeight,
+ op.scrollTop
+ )
+ );
+ display.scrollbars.setScrollTop(doc.scrollTop);
+ display.scroller.scrollTop = doc.scrollTop;
+ }
+ if (
+ op.scrollLeft != null &&
+ (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)
+ ) {
+ doc.scrollLeft = Math.max(
+ 0,
+ Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft)
+ );
+ display.scrollbars.setScrollLeft(doc.scrollLeft);
+ display.scroller.scrollLeft = doc.scrollLeft;
+ alignHorizontally(cm);
+ }
+ // If we need to scroll a specific position into view, do so.
+ if (op.scrollToPos) {
+ var coords = scrollPosIntoView(
+ cm,
+ clipPos(doc, op.scrollToPos.from),
+ clipPos(doc, op.scrollToPos.to),
+ op.scrollToPos.margin
+ );
+ if (op.scrollToPos.isCursor && cm.state.focused)
+ maybeScrollWindow(cm, coords);
+ }
+
+ // Fire events for markers that are hidden/unidden by editing or
+ // undoing
+ var hidden = op.maybeHiddenMarkers,
+ unhidden = op.maybeUnhiddenMarkers;
+ if (hidden)
+ for (var i = 0; i < hidden.length; ++i)
+ if (!hidden[i].lines.length) signal(hidden[i], "hide");
+ if (unhidden)
+ for (var i = 0; i < unhidden.length; ++i)
+ if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
+
+ if (display.wrapper.offsetHeight)
+ doc.scrollTop = cm.display.scroller.scrollTop;
+
+ // Fire change events, and delayed event handlers
+ if (op.changeObjs) signal(cm, "changes", cm, op.changeObjs);
+ if (op.update) op.update.finish();
+ }
+
+ // Run the given function in an operation
+ function runInOp(cm, f) {
+ if (cm.curOp) return f();
+ startOperation(cm);
+ try {
+ return f();
+ } finally {
+ endOperation(cm);
+ }
+ }
+ // Wraps a function in an operation. Returns the wrapped function.
+ function operation(cm, f) {
+ return function () {
+ if (cm.curOp) return f.apply(cm, arguments);
+ startOperation(cm);
+ try {
+ return f.apply(cm, arguments);
+ } finally {
+ endOperation(cm);
+ }
+ };
+ }
+ // Used to add methods to editor and doc instances, wrapping them in
+ // operations.
+ function methodOp(f) {
+ return function () {
+ if (this.curOp) return f.apply(this, arguments);
+ startOperation(this);
+ try {
+ return f.apply(this, arguments);
+ } finally {
+ endOperation(this);
+ }
+ };
+ }
+ function docMethodOp(f) {
+ return function () {
+ var cm = this.cm;
+ if (!cm || cm.curOp) return f.apply(this, arguments);
+ startOperation(cm);
+ try {
+ return f.apply(this, arguments);
+ } finally {
+ endOperation(cm);
+ }
+ };
+ }
+
+ // VIEW TRACKING
+
+ // These objects are used to represent the visible (currently drawn)
+ // part of the document. A LineView may correspond to multiple
+ // logical lines, if those are connected by collapsed ranges.
+ function LineView(doc, line, lineN) {
+ // The starting line
+ this.line = line;
+ // Continuing lines, if any
+ this.rest = visualLineContinued(line);
+ // Number of logical lines in this visual line
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+ this.node = this.text = null;
+ this.hidden = lineIsHidden(doc, line);
+ }
+
+ // Create a range of LineView objects for the given lines.
+ function buildViewArray(cm, from, to) {
+ var array = [],
+ nextPos;
+ for (var pos = from; pos < to; pos = nextPos) {
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+ nextPos = pos + view.size;
+ array.push(view);
+ }
+ return array;
+ }
+
+ // Updates the display.view data structure for a given change to the
+ // document. From and to are in pre-change coordinates. Lendiff is
+ // the amount of lines added or subtracted by the change. This is
+ // used for changes that span multiple lines, or change the way
+ // lines are divided into visual lines. regLineChange (below)
+ // registers single-line changes.
+ function regChange(cm, from, to, lendiff) {
+ if (from == null) from = cm.doc.first;
+ if (to == null) to = cm.doc.first + cm.doc.size;
+ if (!lendiff) lendiff = 0;
+
+ var display = cm.display;
+ if (
+ lendiff &&
+ to < display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers > from)
+ )
+ display.updateLineNumbers = from;
+
+ cm.curOp.viewChanged = true;
+
+ if (from >= display.viewTo) {
+ // Change after
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+ resetView(cm);
+ } else if (to <= display.viewFrom) {
+ // Change before
+ if (
+ sawCollapsedSpans &&
+ visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom
+ ) {
+ resetView(cm);
+ } else {
+ display.viewFrom += lendiff;
+ display.viewTo += lendiff;
+ }
+ } else if (from <= display.viewFrom && to >= display.viewTo) {
+ // Full overlap
+ resetView(cm);
+ } else if (from <= display.viewFrom) {
+ // Top overlap
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cut) {
+ display.view = display.view.slice(cut.index);
+ display.viewFrom = cut.lineN;
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ } else if (to >= display.viewTo) {
+ // Bottom overlap
+ var cut = viewCuttingPoint(cm, from, from, -1);
+ if (cut) {
+ display.view = display.view.slice(0, cut.index);
+ display.viewTo = cut.lineN;
+ } else {
+ resetView(cm);
+ }
+ } else {
+ // Gap in the middle
+ var cutTop = viewCuttingPoint(cm, from, from, -1);
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cutTop && cutBot) {
+ display.view = display.view
+ .slice(0, cutTop.index)
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+ .concat(display.view.slice(cutBot.index));
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ }
+
+ var ext = display.externalMeasured;
+ if (ext) {
+ if (to < ext.lineN) ext.lineN += lendiff;
+ else if (from < ext.lineN + ext.size) display.externalMeasured = null;
+ }
+ }
+
+ // Register a change to a single line. Type must be one of "text",
+ // "gutter", "class", "widget"
+ function regLineChange(cm, line, type) {
+ cm.curOp.viewChanged = true;
+ var display = cm.display,
+ ext = cm.display.externalMeasured;
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+ display.externalMeasured = null;
+
+ if (line < display.viewFrom || line >= display.viewTo) return;
+ var lineView = display.view[findViewIndex(cm, line)];
+ if (lineView.node == null) return;
+ var arr = lineView.changes || (lineView.changes = []);
+ if (indexOf(arr, type) == -1) arr.push(type);
+ }
+
+ // Clear the view.
+ function resetView(cm) {
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+ cm.display.view = [];
+ cm.display.viewOffset = 0;
+ }
+
+ // Find the view element corresponding to a given line. Return null
+ // when the line isn't visible.
+ function findViewIndex(cm, n) {
+ if (n >= cm.display.viewTo) return null;
+ n -= cm.display.viewFrom;
+ if (n < 0) return null;
+ var view = cm.display.view;
+ for (var i = 0; i < view.length; i++) {
+ n -= view[i].size;
+ if (n < 0) return i;
+ }
+ }
+
+ function viewCuttingPoint(cm, oldN, newN, dir) {
+ var index = findViewIndex(cm, oldN),
+ diff,
+ view = cm.display.view;
+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+ return { index: index, lineN: newN };
+ for (var i = 0, n = cm.display.viewFrom; i < index; i++) n += view[i].size;
+ if (n != oldN) {
+ if (dir > 0) {
+ if (index == view.length - 1) return null;
+ diff = n + view[index].size - oldN;
+ index++;
+ } else {
+ diff = n - oldN;
+ }
+ oldN += diff;
+ newN += diff;
+ }
+ while (visualLineNo(cm.doc, newN) != newN) {
+ if (index == (dir < 0 ? 0 : view.length - 1)) return null;
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+ index += dir;
+ }
+ return { index: index, lineN: newN };
+ }
+
+ // Force the view to cover a given range, adding empty view element
+ // or clipping off existing ones as needed.
+ function adjustView(cm, from, to) {
+ var display = cm.display,
+ view = display.view;
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+ display.view = buildViewArray(cm, from, to);
+ display.viewFrom = from;
+ } else {
+ if (display.viewFrom > from)
+ display.view = buildViewArray(cm, from, display.viewFrom).concat(
+ display.view
+ );
+ else if (display.viewFrom < from)
+ display.view = display.view.slice(findViewIndex(cm, from));
+ display.viewFrom = from;
+ if (display.viewTo < to)
+ display.view = display.view.concat(
+ buildViewArray(cm, display.viewTo, to)
+ );
+ else if (display.viewTo > to)
+ display.view = display.view.slice(0, findViewIndex(cm, to));
+ }
+ display.viewTo = to;
+ }
+
+ // Count the number of lines in the view whose DOM representation is
+ // out of date (or nonexistent).
+ function countDirtyView(cm) {
+ var view = cm.display.view,
+ dirty = 0;
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
+ }
+ return dirty;
+ }
+
+ // EVENT HANDLERS
+
+ // Attach the necessary event handlers when initializing the editor
+ function registerEventHandlers(cm) {
+ var d = cm.display;
+ on(d.scroller, "mousedown", operation(cm, onMouseDown));
+ // Older IE's will not fire a second mousedown for a double click
+ if (ie && ie_version < 11)
+ on(
+ d.scroller,
+ "dblclick",
+ operation(cm, function (e) {
+ if (signalDOMEvent(cm, e)) return;
+ var pos = posFromMouse(cm, e);
+ if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e))
+ return;
+ e_preventDefault(e);
+ var word = cm.findWordAt(pos);
+ extendSelection(cm.doc, word.anchor, word.head);
+ })
+ );
+ else
+ on(d.scroller, "dblclick", function (e) {
+ signalDOMEvent(cm, e) || e_preventDefault(e);
+ });
+ // Some browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for these browsers.
+ if (!captureRightClick)
+ on(d.scroller, "contextmenu", function (e) {
+ onContextMenu(cm, e);
+ });
+
+ // Used to suppress mouse event handling when a touch happens
+ var touchFinished,
+ prevTouch = { end: 0 };
+ function finishTouch() {
+ if (d.activeTouch) {
+ touchFinished = setTimeout(function () {
+ d.activeTouch = null;
+ }, 1000);
+ prevTouch = d.activeTouch;
+ prevTouch.end = +new Date();
+ }
+ }
+ function isMouseLikeTouchEvent(e) {
+ if (e.touches.length != 1) return false;
+ var touch = e.touches[0];
+ return touch.radiusX <= 1 && touch.radiusY <= 1;
+ }
+ function farAway(touch, other) {
+ if (other.left == null) return true;
+ var dx = other.left - touch.left,
+ dy = other.top - touch.top;
+ return dx * dx + dy * dy > 20 * 20;
+ }
+ on(d.scroller, "touchstart", function (e) {
+ if (!isMouseLikeTouchEvent(e)) {
+ clearTimeout(touchFinished);
+ var now = +new Date();
+ d.activeTouch = {
+ start: now,
+ moved: false,
+ prev: now - prevTouch.end <= 300 ? prevTouch : null,
+ };
+ if (e.touches.length == 1) {
+ d.activeTouch.left = e.touches[0].pageX;
+ d.activeTouch.top = e.touches[0].pageY;
+ }
+ }
+ });
+ on(d.scroller, "touchmove", function () {
+ if (d.activeTouch) d.activeTouch.moved = true;
+ });
+ on(d.scroller, "touchend", function (e) {
+ var touch = d.activeTouch;
+ if (
+ touch &&
+ !eventInWidget(d, e) &&
+ touch.left != null &&
+ !touch.moved &&
+ new Date() - touch.start < 300
+ ) {
+ var pos = cm.coordsChar(d.activeTouch, "page"),
+ range;
+ if (!touch.prev || farAway(touch, touch.prev))
+ // Single tap
+ range = new Range(pos, pos);
+ else if (!touch.prev.prev || farAway(touch, touch.prev.prev))
+ // Double tap
+ range = cm.findWordAt(pos);
+ // Triple tap
+ else
+ range = new Range(
+ Pos(pos.line, 0),
+ clipPos(cm.doc, Pos(pos.line + 1, 0))
+ );
+ cm.setSelection(range.anchor, range.head);
+ cm.focus();
+ e_preventDefault(e);
+ }
+ finishTouch();
+ });
+ on(d.scroller, "touchcancel", finishTouch);
+
+ // Sync scrolling between fake scrollbars and real scrollable
+ // area, ensure viewport is updated when scrolling.
+ on(d.scroller, "scroll", function () {
+ if (d.scroller.clientHeight) {
+ setScrollTop(cm, d.scroller.scrollTop);
+ setScrollLeft(cm, d.scroller.scrollLeft, true);
+ signal(cm, "scroll", cm);
+ }
+ });
+
+ // Listen to wheel events in order to try and update the viewport on time.
+ on(d.scroller, "mousewheel", function (e) {
+ onScrollWheel(cm, e);
+ });
+ on(d.scroller, "DOMMouseScroll", function (e) {
+ onScrollWheel(cm, e);
+ });
+
+ // Prevent wrapper from ever scrolling
+ on(d.wrapper, "scroll", function () {
+ d.wrapper.scrollTop = d.wrapper.scrollLeft = 0;
+ });
+
+ d.dragFunctions = {
+ enter: function (e) {
+ if (!signalDOMEvent(cm, e)) e_stop(e);
+ },
+ over: function (e) {
+ if (!signalDOMEvent(cm, e)) {
+ onDragOver(cm, e);
+ e_stop(e);
+ }
+ },
+ start: function (e) {
+ onDragStart(cm, e);
+ },
+ drop: operation(cm, onDrop),
+ leave: function () {
+ clearDragCursor(cm);
+ },
+ };
+
+ var inp = d.input.getField();
+ on(inp, "keyup", function (e) {
+ onKeyUp.call(cm, e);
+ });
+ on(inp, "keydown", operation(cm, onKeyDown));
+ on(inp, "keypress", operation(cm, onKeyPress));
+ on(inp, "focus", bind(onFocus, cm));
+ on(inp, "blur", bind(onBlur, cm));
+ }
+
+ function dragDropChanged(cm, value, old) {
+ var wasOn = old && old != CodeMirror.Init;
+ if (!value != !wasOn) {
+ var funcs = cm.display.dragFunctions;
+ var toggle = value ? on : off;
+ toggle(cm.display.scroller, "dragstart", funcs.start);
+ toggle(cm.display.scroller, "dragenter", funcs.enter);
+ toggle(cm.display.scroller, "dragover", funcs.over);
+ toggle(cm.display.scroller, "dragleave", funcs.leave);
+ toggle(cm.display.scroller, "drop", funcs.drop);
+ }
+ }
+
+ // Called when the window resizes
+ function onResize(cm) {
+ var d = cm.display;
+ if (
+ d.lastWrapHeight == d.wrapper.clientHeight &&
+ d.lastWrapWidth == d.wrapper.clientWidth
+ )
+ return;
+ // Might be a text scaling operation, clear size caches.
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+ d.scrollbarsClipped = false;
+ cm.setSize();
+ }
+
+ // MOUSE EVENTS
+
+ // Return true when the given mouse event happened in a widget
+ function eventInWidget(display, e) {
+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+ if (
+ !n ||
+ (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+ (n.parentNode == display.sizer && n != display.mover)
+ )
+ return true;
+ }
+ }
+
+ // Given a mouse event, find the corresponding position. If liberal
+ // is false, it checks whether a gutter or scrollbar was clicked,
+ // and returns null if it was. forRect is used by rectangular
+ // selections, and tries to estimate a character position even for
+ // coordinates beyond the right of the text.
+ function posFromMouse(cm, e, liberal, forRect) {
+ var display = cm.display;
+ if (!liberal && e_target(e).getAttribute("cm-not-content") == "true")
+ return null;
+
+ var x,
+ y,
+ space = display.lineSpace.getBoundingClientRect();
+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+ try {
+ x = e.clientX - space.left;
+ y = e.clientY - space.top;
+ } catch (e) {
+ return null;
+ }
+ var coords = coordsChar(cm, x, y),
+ line;
+ if (
+ forRect &&
+ coords.xRel == 1 &&
+ (line = getLine(cm.doc, coords.line).text).length == coords.ch
+ ) {
+ var colDiff =
+ countColumn(line, line.length, cm.options.tabSize) - line.length;
+ coords = Pos(
+ coords.line,
+ Math.max(
+ 0,
+ Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) -
+ colDiff
+ )
+ );
+ }
+ return coords;
+ }
+
+ // A mouse down can be a single click, double click, triple click,
+ // start of selection drag, start of text drag, new cursor
+ // (ctrl-click), rectangle drag (alt-drag), or xwin
+ // middle-click-paste. Or it might be a click on something we should
+ // not interfere with, such as a scrollbar or widget.
+ function onMouseDown(e) {
+ var cm = this,
+ display = cm.display;
+ if (
+ (display.activeTouch && display.input.supportsTouch()) ||
+ signalDOMEvent(cm, e)
+ )
+ return;
+ display.shift = e.shiftKey;
+
+ if (eventInWidget(display, e)) {
+ if (!webkit) {
+ // Briefly turn off draggability, to allow widgets to do
+ // normal dragging things.
+ display.scroller.draggable = false;
+ setTimeout(function () {
+ display.scroller.draggable = true;
+ }, 100);
+ }
+ return;
+ }
+ if (clickInGutter(cm, e)) return;
+ var start = posFromMouse(cm, e);
+ window.focus();
+
+ switch (e_button(e)) {
+ case 1:
+ // #3261: make sure, that we're not starting a second selection
+ if (cm.state.selectingText) cm.state.selectingText(e);
+ else if (start) leftButtonDown(cm, e, start);
+ else if (e_target(e) == display.scroller) e_preventDefault(e);
+ break;
+ case 2:
+ if (webkit) cm.state.lastMiddleDown = +new Date();
+ if (start) extendSelection(cm.doc, start);
+ setTimeout(function () {
+ display.input.focus();
+ }, 20);
+ e_preventDefault(e);
+ break;
+ case 3:
+ if (captureRightClick) onContextMenu(cm, e);
+ else delayBlurEvent(cm);
+ break;
+ }
+ }
+
+ var lastClick, lastDoubleClick;
+ function leftButtonDown(cm, e, start) {
+ if (ie) setTimeout(bind(ensureFocus, cm), 0);
+ else cm.curOp.focus = activeElt();
+
+ var now = +new Date(),
+ type;
+ if (
+ lastDoubleClick &&
+ lastDoubleClick.time > now - 400 &&
+ cmp(lastDoubleClick.pos, start) == 0
+ ) {
+ type = "triple";
+ } else if (
+ lastClick &&
+ lastClick.time > now - 400 &&
+ cmp(lastClick.pos, start) == 0
+ ) {
+ type = "double";
+ lastDoubleClick = { time: now, pos: start };
+ } else {
+ type = "single";
+ lastClick = { time: now, pos: start };
+ }
+
+ var sel = cm.doc.sel,
+ modifier = mac ? e.metaKey : e.ctrlKey,
+ contained;
+ if (
+ cm.options.dragDrop &&
+ dragAndDrop &&
+ !isReadOnly(cm) &&
+ type == "single" &&
+ (contained = sel.contains(start)) > -1 &&
+ (cmp((contained = sel.ranges[contained]).from(), start) < 0 ||
+ start.xRel > 0) &&
+ (cmp(contained.to(), start) > 0 || start.xRel < 0)
+ )
+ leftButtonStartDrag(cm, e, start, modifier);
+ else leftButtonSelect(cm, e, start, type, modifier);
+ }
+
+ // Start a text drag. When it ends, see if any dragging actually
+ // happen, and treat as a click if it didn't.
+ function leftButtonStartDrag(cm, e, start, modifier) {
+ var display = cm.display,
+ startTime = +new Date();
+ var dragEnd = operation(cm, function (e2) {
+ if (webkit) display.scroller.draggable = false;
+ cm.state.draggingText = false;
+ off(document, "mouseup", dragEnd);
+ off(display.scroller, "drop", dragEnd);
+ if (
+ Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) <
+ 10
+ ) {
+ e_preventDefault(e2);
+ if (!modifier && +new Date() - 200 < startTime)
+ extendSelection(cm.doc, start);
+ // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+ if (webkit || (ie && ie_version == 9))
+ setTimeout(function () {
+ document.body.focus();
+ display.input.focus();
+ }, 20);
+ else display.input.focus();
+ }
+ });
+ // Let the drag handler handle this.
+ if (webkit) display.scroller.draggable = true;
+ cm.state.draggingText = dragEnd;
+ // IE's approach to draggable
+ if (display.scroller.dragDrop) display.scroller.dragDrop();
+ on(document, "mouseup", dragEnd);
+ on(display.scroller, "drop", dragEnd);
+ }
+
+ // Normal selection, as opposed to text dragging.
+ function leftButtonSelect(cm, e, start, type, addNew) {
+ var display = cm.display,
+ doc = cm.doc;
+ e_preventDefault(e);
+
+ var ourRange,
+ ourIndex,
+ startSel = doc.sel,
+ ranges = startSel.ranges;
+ if (addNew && !e.shiftKey) {
+ ourIndex = doc.sel.contains(start);
+ if (ourIndex > -1) ourRange = ranges[ourIndex];
+ else ourRange = new Range(start, start);
+ } else {
+ ourRange = doc.sel.primary();
+ ourIndex = doc.sel.primIndex;
+ }
+
+ if (e.altKey) {
+ type = "rect";
+ if (!addNew) ourRange = new Range(start, start);
+ start = posFromMouse(cm, e, true, true);
+ ourIndex = -1;
+ } else if (type == "double") {
+ var word = cm.findWordAt(start);
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, word.anchor, word.head);
+ else ourRange = word;
+ } else if (type == "triple") {
+ var line = new Range(
+ Pos(start.line, 0),
+ clipPos(doc, Pos(start.line + 1, 0))
+ );
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, line.anchor, line.head);
+ else ourRange = line;
+ } else {
+ ourRange = extendRange(doc, ourRange, start);
+ }
+
+ if (!addNew) {
+ ourIndex = 0;
+ setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+ startSel = doc.sel;
+ } else if (ourIndex == -1) {
+ ourIndex = ranges.length;
+ setSelection(
+ doc,
+ normalizeSelection(ranges.concat([ourRange]), ourIndex),
+ { scroll: false, origin: "*mouse" }
+ );
+ } else if (
+ ranges.length > 1 &&
+ ranges[ourIndex].empty() &&
+ type == "single" &&
+ !e.shiftKey
+ ) {
+ setSelection(
+ doc,
+ normalizeSelection(
+ ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)),
+ 0
+ ),
+ { scroll: false, origin: "*mouse" }
+ );
+ startSel = doc.sel;
+ } else {
+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+ }
+
+ var lastPos = start;
+ function extendTo(pos) {
+ if (cmp(lastPos, pos) == 0) return;
+ lastPos = pos;
+
+ if (type == "rect") {
+ var ranges = [],
+ tabSize = cm.options.tabSize;
+ var startCol = countColumn(
+ getLine(doc, start.line).text,
+ start.ch,
+ tabSize
+ );
+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+ var left = Math.min(startCol, posCol),
+ right = Math.max(startCol, posCol);
+ for (
+ var line = Math.min(start.line, pos.line),
+ end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+ line <= end;
+ line++
+ ) {
+ var text = getLine(doc, line).text,
+ leftPos = findColumn(text, left, tabSize);
+ if (left == right)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
+ else if (text.length > leftPos)
+ ranges.push(
+ new Range(
+ Pos(line, leftPos),
+ Pos(line, findColumn(text, right, tabSize))
+ )
+ );
+ }
+ if (!ranges.length) ranges.push(new Range(start, start));
+ setSelection(
+ doc,
+ normalizeSelection(
+ startSel.ranges.slice(0, ourIndex).concat(ranges),
+ ourIndex
+ ),
+ { origin: "*mouse", scroll: false }
+ );
+ cm.scrollIntoView(pos);
+ } else {
+ var oldRange = ourRange;
+ var anchor = oldRange.anchor,
+ head = pos;
+ if (type != "single") {
+ if (type == "double") var range = cm.findWordAt(pos);
+ else
+ var range = new Range(
+ Pos(pos.line, 0),
+ clipPos(doc, Pos(pos.line + 1, 0))
+ );
+ if (cmp(range.anchor, anchor) > 0) {
+ head = range.head;
+ anchor = minPos(oldRange.from(), range.anchor);
+ } else {
+ head = range.anchor;
+ anchor = maxPos(oldRange.to(), range.head);
+ }
+ }
+ var ranges = startSel.ranges.slice(0);
+ ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
+ setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
+ }
+ }
+
+ var editorSize = display.wrapper.getBoundingClientRect();
+ // Used to ensure timeout re-tries don't fire when another extend
+ // happened in the meantime (clearTimeout isn't reliable -- at
+ // least on Chrome, the timeouts still happen even when cleared,
+ // if the clear happens after their scheduled firing time).
+ var counter = 0;
+
+ function extend(e) {
+ var curCount = ++counter;
+ var cur = posFromMouse(cm, e, true, type == "rect");
+ if (!cur) return;
+ if (cmp(cur, lastPos) != 0) {
+ cm.curOp.focus = activeElt();
+ extendTo(cur);
+ var visible = visibleLines(display, doc);
+ if (cur.line >= visible.to || cur.line < visible.from)
+ setTimeout(
+ operation(cm, function () {
+ if (counter == curCount) extend(e);
+ }),
+ 150
+ );
+ } else {
+ var outside =
+ e.clientY < editorSize.top
+ ? -20
+ : e.clientY > editorSize.bottom
+ ? 20
+ : 0;
+ if (outside)
+ setTimeout(
+ operation(cm, function () {
+ if (counter != curCount) return;
+ display.scroller.scrollTop += outside;
+ extend(e);
+ }),
+ 50
+ );
+ }
+ }
+
+ function done(e) {
+ cm.state.selectingText = false;
+ counter = Infinity;
+ e_preventDefault(e);
+ display.input.focus();
+ off(document, "mousemove", move);
+ off(document, "mouseup", up);
+ doc.history.lastSelOrigin = null;
+ }
+
+ var move = operation(cm, function (e) {
+ if (!e_button(e)) done(e);
+ else extend(e);
+ });
+ var up = operation(cm, done);
+ cm.state.selectingText = up;
+ on(document, "mousemove", move);
+ on(document, "mouseup", up);
+ }
+
+ // Determines whether an event happened in the gutter, and fires the
+ // handlers for the corresponding event.
+ function gutterEvent(cm, e, type, prevent, signalfn) {
+ try {
+ var mX = e.clientX,
+ mY = e.clientY;
+ } catch (e) {
+ return false;
+ }
+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right))
+ return false;
+ if (prevent) e_preventDefault(e);
+
+ var display = cm.display;
+ var lineBox = display.lineDiv.getBoundingClientRect();
+
+ if (mY > lineBox.bottom || !hasHandler(cm, type))
+ return e_defaultPrevented(e);
+ mY -= lineBox.top - display.viewOffset;
+
+ for (var i = 0; i < cm.options.gutters.length; ++i) {
+ var g = display.gutters.childNodes[i];
+ if (g && g.getBoundingClientRect().right >= mX) {
+ var line = lineAtHeight(cm.doc, mY);
+ var gutter = cm.options.gutters[i];
+ signalfn(cm, type, cm, line, gutter, e);
+ return e_defaultPrevented(e);
+ }
+ }
+ }
+
+ function clickInGutter(cm, e) {
+ return gutterEvent(cm, e, "gutterClick", true, signalLater);
+ }
+
+ // Kludge to work around strange IE behavior where it'll sometimes
+ // re-fire a series of drag-related events right after the drop (#1551)
+ var lastDrop = 0;
+
+ function onDrop(e) {
+ var cm = this;
+ clearDragCursor(cm);
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
+ e_preventDefault(e);
+ if (ie) lastDrop = +new Date();
+ var pos = posFromMouse(cm, e, true),
+ files = e.dataTransfer.files;
+ if (!pos || isReadOnly(cm)) return;
+ // Might be a file drop, in which case we simply extract the text
+ // and insert it.
+ if (files && files.length && window.FileReader && window.File) {
+ var n = files.length,
+ text = Array(n),
+ read = 0;
+ var loadFile = function (file, i) {
+ var reader = new FileReader();
+ reader.onload = operation(cm, function () {
+ text[i] = reader.result;
+ if (++read == n) {
+ pos = clipPos(cm.doc, pos);
+ var change = {
+ from: pos,
+ to: pos,
+ text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+ origin: "paste",
+ };
+ makeChange(cm.doc, change);
+ setSelectionReplaceHistory(
+ cm.doc,
+ simpleSelection(pos, changeEnd(change))
+ );
+ }
+ });
+ reader.readAsText(file);
+ };
+ for (var i = 0; i < n; ++i) loadFile(files[i], i);
+ } else {
+ // Normal drop
+ // Don't do a replace if the drop happened inside of the selected text.
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+ cm.state.draggingText(e);
+ // Ensure the editor is re-focused
+ setTimeout(function () {
+ cm.display.input.focus();
+ }, 20);
+ return;
+ }
+ try {
+ var text = e.dataTransfer.getData("Text");
+ if (text) {
+ if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
+ var selected = cm.listSelections();
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+ if (selected)
+ for (var i = 0; i < selected.length; ++i)
+ replaceRange(
+ cm.doc,
+ "",
+ selected[i].anchor,
+ selected[i].head,
+ "drag"
+ );
+ cm.replaceSelection(text, "around", "paste");
+ cm.display.input.focus();
+ }
+ } catch (e) {}
+ }
+ }
+
+ function onDragStart(cm, e) {
+ if (ie && (!cm.state.draggingText || +new Date() - lastDrop < 100)) {
+ e_stop(e);
+ return;
+ }
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
+
+ e.dataTransfer.setData("Text", cm.getSelection());
+
+ // Use dummy image instead of default browsers image.
+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+ if (e.dataTransfer.setDragImage && !safari) {
+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+ img.src =
+ "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+ if (presto) {
+ img.width = img.height = 1;
+ cm.display.wrapper.appendChild(img);
+ // Force a relayout, or Opera won't use our image for some obscure reason
+ img._top = img.offsetTop;
+ }
+ e.dataTransfer.setDragImage(img, 0, 0);
+ if (presto) img.parentNode.removeChild(img);
+ }
+ }
+
+ function onDragOver(cm, e) {
+ var pos = posFromMouse(cm, e);
+ if (!pos) return;
+ var frag = document.createDocumentFragment();
+ drawSelectionCursor(cm, pos, frag);
+ if (!cm.display.dragCursor) {
+ cm.display.dragCursor = elt(
+ "div",
+ null,
+ "CodeMirror-cursors CodeMirror-dragcursors"
+ );
+ cm.display.lineSpace.insertBefore(
+ cm.display.dragCursor,
+ cm.display.cursorDiv
+ );
+ }
+ removeChildrenAndAdd(cm.display.dragCursor, frag);
+ }
+
+ function clearDragCursor(cm) {
+ if (cm.display.dragCursor) {
+ cm.display.lineSpace.removeChild(cm.display.dragCursor);
+ cm.display.dragCursor = null;
+ }
+ }
+
+ // SCROLL EVENTS
+
+ // Sync the scrollable area and scrollbars, ensure the viewport
+ // covers the visible area.
+ function setScrollTop(cm, val) {
+ if (Math.abs(cm.doc.scrollTop - val) < 2) return;
+ cm.doc.scrollTop = val;
+ if (!gecko) updateDisplaySimple(cm, { top: val });
+ if (cm.display.scroller.scrollTop != val)
+ cm.display.scroller.scrollTop = val;
+ cm.display.scrollbars.setScrollTop(val);
+ if (gecko) updateDisplaySimple(cm);
+ startWorker(cm, 100);
+ }
+ // Sync scroller and scrollbar, ensure the gutter elements are
+ // aligned.
+ function setScrollLeft(cm, val, isScroller) {
+ if (
+ isScroller
+ ? val == cm.doc.scrollLeft
+ : Math.abs(cm.doc.scrollLeft - val) < 2
+ )
+ return;
+ val = Math.min(
+ val,
+ cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth
+ );
+ cm.doc.scrollLeft = val;
+ alignHorizontally(cm);
+ if (cm.display.scroller.scrollLeft != val)
+ cm.display.scroller.scrollLeft = val;
+ cm.display.scrollbars.setScrollLeft(val);
+ }
+
+ // Since the delta values reported on mouse wheel events are
+ // unstandardized between browsers and even browser versions, and
+ // generally horribly unpredictable, this code starts by measuring
+ // the scroll effect that the first few mouse wheel events have,
+ // and, from that, detects the way it can convert deltas to pixel
+ // offsets afterwards.
+ //
+ // The reason we want to know the amount a wheel event will scroll
+ // is that it gives us a chance to update the display before the
+ // actual scrolling happens, reducing flickering.
+
+ var wheelSamples = 0,
+ wheelPixelsPerUnit = null;
+ // Fill in a browser-detected starting value on browsers where we
+ // know one. These don't have to be accurate -- the result of them
+ // being wrong would just be a slight flicker on the first wheel
+ // scroll (if it is large enough).
+ if (ie) wheelPixelsPerUnit = -0.53;
+ else if (gecko) wheelPixelsPerUnit = 15;
+ else if (chrome) wheelPixelsPerUnit = -0.7;
+ else if (safari) wheelPixelsPerUnit = -1 / 3;
+
+ var wheelEventDelta = function (e) {
+ var dx = e.wheelDeltaX,
+ dy = e.wheelDeltaY;
+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
+ else if (dy == null) dy = e.wheelDelta;
+ return { x: dx, y: dy };
+ };
+ CodeMirror.wheelEventPixels = function (e) {
+ var delta = wheelEventDelta(e);
+ delta.x *= wheelPixelsPerUnit;
+ delta.y *= wheelPixelsPerUnit;
+ return delta;
+ };
+
+ function onScrollWheel(cm, e) {
+ var delta = wheelEventDelta(e),
+ dx = delta.x,
+ dy = delta.y;
+
+ var display = cm.display,
+ scroll = display.scroller;
+ // Quit if there's nothing to scroll here
+ if (
+ !(
+ (dx && scroll.scrollWidth > scroll.clientWidth) ||
+ (dy && scroll.scrollHeight > scroll.clientHeight)
+ )
+ )
+ return;
+
+ // Webkit browsers on OS X abort momentum scrolls when the target
+ // of the scroll event is removed from the scrollable element.
+ // This hack (see related code in patchDisplay) makes sure the
+ // element is kept around.
+ if (dy && mac && webkit) {
+ outer: for (
+ var cur = e.target, view = display.view;
+ cur != scroll;
+ cur = cur.parentNode
+ ) {
+ for (var i = 0; i < view.length; i++) {
+ if (view[i].node == cur) {
+ cm.display.currentWheelTarget = cur;
+ break outer;
+ }
+ }
+ }
+ }
+
+ // On some browsers, horizontal scrolling will cause redraws to
+ // happen before the gutter has been realigned, causing it to
+ // wriggle around in a most unseemly way. When we have an
+ // estimated pixels/delta value, we just handle horizontal
+ // scrolling entirely here. It'll be slightly off from native, but
+ // better than glitching out.
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+ if (dy)
+ setScrollTop(
+ cm,
+ Math.max(
+ 0,
+ Math.min(
+ scroll.scrollTop + dy * wheelPixelsPerUnit,
+ scroll.scrollHeight - scroll.clientHeight
+ )
+ )
+ );
+ setScrollLeft(
+ cm,
+ Math.max(
+ 0,
+ Math.min(
+ scroll.scrollLeft + dx * wheelPixelsPerUnit,
+ scroll.scrollWidth - scroll.clientWidth
+ )
+ )
+ );
+ e_preventDefault(e);
+ display.wheelStartX = null; // Abort measurement, if in progress
+ return;
+ }
+
+ // 'Project' the visible viewport to cover the area that is being
+ // scrolled into view (if we know enough to estimate it).
+ if (dy && wheelPixelsPerUnit != null) {
+ var pixels = dy * wheelPixelsPerUnit;
+ var top = cm.doc.scrollTop,
+ bot = top + display.wrapper.clientHeight;
+ if (pixels < 0) top = Math.max(0, top + pixels - 50);
+ else bot = Math.min(cm.doc.height, bot + pixels + 50);
+ updateDisplaySimple(cm, { top: top, bottom: bot });
+ }
+
+ if (wheelSamples < 20) {
+ if (display.wheelStartX == null) {
+ display.wheelStartX = scroll.scrollLeft;
+ display.wheelStartY = scroll.scrollTop;
+ display.wheelDX = dx;
+ display.wheelDY = dy;
+ setTimeout(function () {
+ if (display.wheelStartX == null) return;
+ var movedX = scroll.scrollLeft - display.wheelStartX;
+ var movedY = scroll.scrollTop - display.wheelStartY;
+ var sample =
+ (movedY && display.wheelDY && movedY / display.wheelDY) ||
+ (movedX && display.wheelDX && movedX / display.wheelDX);
+ display.wheelStartX = display.wheelStartY = null;
+ if (!sample) return;
+ wheelPixelsPerUnit =
+ (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+ ++wheelSamples;
+ }, 200);
+ } else {
+ display.wheelDX += dx;
+ display.wheelDY += dy;
+ }
+ }
+ }
+
+ // KEY EVENTS
+
+ // Run a handler that was bound to a key.
+ function doHandleBinding(cm, bound, dropShift) {
+ if (typeof bound == "string") {
+ bound = commands[bound];
+ if (!bound) return false;
+ }
+ // Ensure previous input has been read, so that the handler sees a
+ // consistent view of the document
+ cm.display.input.ensurePolled();
+ var prevShift = cm.display.shift,
+ done = false;
+ try {
+ if (isReadOnly(cm)) cm.state.suppressEdits = true;
+ if (dropShift) cm.display.shift = false;
+ done = bound(cm) != Pass;
+ } finally {
+ cm.display.shift = prevShift;
+ cm.state.suppressEdits = false;
+ }
+ return done;
+ }
+
+ function lookupKeyForEditor(cm, name, handle) {
+ for (var i = 0; i < cm.state.keyMaps.length; i++) {
+ var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+ if (result) return result;
+ }
+ return (
+ (cm.options.extraKeys &&
+ lookupKey(name, cm.options.extraKeys, handle, cm)) ||
+ lookupKey(name, cm.options.keyMap, handle, cm)
+ );
+ }
+
+ var stopSeq = new Delayed();
+ function dispatchKey(cm, name, e, handle) {
+ var seq = cm.state.keySeq;
+ if (seq) {
+ if (isModifierKey(name)) return "handled";
+ stopSeq.set(50, function () {
+ if (cm.state.keySeq == seq) {
+ cm.state.keySeq = null;
+ cm.display.input.reset();
+ }
+ });
+ name = seq + " " + name;
+ }
+ var result = lookupKeyForEditor(cm, name, handle);
+
+ if (result == "multi") cm.state.keySeq = name;
+ if (result == "handled") signalLater(cm, "keyHandled", cm, name, e);
+
+ if (result == "handled" || result == "multi") {
+ e_preventDefault(e);
+ restartBlink(cm);
+ }
+
+ if (seq && !result && /\'$/.test(name)) {
+ e_preventDefault(e);
+ return true;
+ }
+ return !!result;
+ }
+
+ // Handle a key from the keydown event.
+ function handleKeyBinding(cm, e) {
+ var name = keyName(e, true);
+ if (!name) return false;
+
+ if (e.shiftKey && !cm.state.keySeq) {
+ // First try to resolve full name (including 'Shift-'). Failing
+ // that, see if there is a cursor-motion command (starting with
+ // 'go') bound to the keyname without 'Shift-'.
+ return (
+ dispatchKey(cm, "Shift-" + name, e, function (b) {
+ return doHandleBinding(cm, b, true);
+ }) ||
+ dispatchKey(cm, name, e, function (b) {
+ if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+ return doHandleBinding(cm, b);
+ })
+ );
+ } else {
+ return dispatchKey(cm, name, e, function (b) {
+ return doHandleBinding(cm, b);
+ });
+ }
+ }
+
+ // Handle a key from the keypress event
+ function handleCharBinding(cm, e, ch) {
+ return dispatchKey(cm, "'" + ch + "'", e, function (b) {
+ return doHandleBinding(cm, b, true);
+ });
+ }
+
+ var lastStoppedKey = null;
+ function onKeyDown(e) {
+ var cm = this;
+ cm.curOp.focus = activeElt();
+ if (signalDOMEvent(cm, e)) return;
+ // IE does strange things with escape.
+ if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
+ var code = e.keyCode;
+ cm.display.shift = code == 16 || e.shiftKey;
+ var handled = handleKeyBinding(cm, e);
+ if (presto) {
+ lastStoppedKey = handled ? code : null;
+ // Opera has no cut event... we try to at least catch the key combo
+ if (
+ !handled &&
+ code == 88 &&
+ !hasCopyEvent &&
+ (mac ? e.metaKey : e.ctrlKey)
+ )
+ cm.replaceSelection("", null, "cut");
+ }
+
+ // Turn mouse into crosshair when Alt is held on Mac.
+ if (
+ code == 18 &&
+ !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)
+ )
+ showCrossHair(cm);
+ }
+
+ function showCrossHair(cm) {
+ var lineDiv = cm.display.lineDiv;
+ addClass(lineDiv, "CodeMirror-crosshair");
+
+ function up(e) {
+ if (e.keyCode == 18 || !e.altKey) {
+ rmClass(lineDiv, "CodeMirror-crosshair");
+ off(document, "keyup", up);
+ off(document, "mouseover", up);
+ }
+ }
+ on(document, "keyup", up);
+ on(document, "mouseover", up);
+ }
+
+ function onKeyUp(e) {
+ if (e.keyCode == 16) this.doc.sel.shift = false;
+ signalDOMEvent(this, e);
+ }
+
+ function onKeyPress(e) {
+ var cm = this;
+ if (
+ eventInWidget(cm.display, e) ||
+ signalDOMEvent(cm, e) ||
+ (e.ctrlKey && !e.altKey) ||
+ (mac && e.metaKey)
+ )
+ return;
+ var keyCode = e.keyCode,
+ charCode = e.charCode;
+ if (presto && keyCode == lastStoppedKey) {
+ lastStoppedKey = null;
+ e_preventDefault(e);
+ return;
+ }
+ if (presto && (!e.which || e.which < 10) && handleKeyBinding(cm, e)) return;
+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+ if (handleCharBinding(cm, e, ch)) return;
+ cm.display.input.onKeyPress(e);
+ }
+
+ // FOCUS/BLUR EVENTS
+
+ function delayBlurEvent(cm) {
+ cm.state.delayingBlurEvent = true;
+ setTimeout(function () {
+ if (cm.state.delayingBlurEvent) {
+ cm.state.delayingBlurEvent = false;
+ onBlur(cm);
+ }
+ }, 100);
+ }
+
+ function onFocus(cm) {
+ if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
+
+ if (cm.options.readOnly == "nocursor") return;
+ if (!cm.state.focused) {
+ signal(cm, "focus", cm);
+ cm.state.focused = true;
+ addClass(cm.display.wrapper, "CodeMirror-focused");
+ // This test prevents this from firing when a context
+ // menu is closed (since the input reset would kill the
+ // select-all detection hack)
+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+ cm.display.input.reset();
+ if (webkit)
+ setTimeout(function () {
+ cm.display.input.reset(true);
+ }, 20); // Issue #1730
+ }
+ cm.display.input.receivedFocus();
+ }
+ restartBlink(cm);
+ }
+ function onBlur(cm) {
+ if (cm.state.delayingBlurEvent) return;
+
+ if (cm.state.focused) {
+ signal(cm, "blur", cm);
+ cm.state.focused = false;
+ rmClass(cm.display.wrapper, "CodeMirror-focused");
+ }
+ clearInterval(cm.display.blinker);
+ setTimeout(function () {
+ if (!cm.state.focused) cm.display.shift = false;
+ }, 150);
+ }
+
+ // CONTEXT MENU HANDLING
+
+ // To make the context menu work, we need to briefly unhide the
+ // textarea (making it as unobtrusive as possible) to let the
+ // right-click take effect on it.
+ function onContextMenu(cm, e) {
+ if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
+ cm.display.input.onContextMenu(e);
+ }
+
+ function contextMenuInGutter(cm, e) {
+ if (!hasHandler(cm, "gutterContextMenu")) return false;
+ return gutterEvent(cm, e, "gutterContextMenu", false, signal);
+ }
+
+ // UPDATING
+
+ // Compute the position of the end of a change (its 'to' property
+ // refers to the pre-change end).
+ var changeEnd = (CodeMirror.changeEnd = function (change) {
+ if (!change.text) return change.to;
+ return Pos(
+ change.from.line + change.text.length - 1,
+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)
+ );
+ });
+
+ // Adjust a position to refer to the post-change position of the
+ // same text, or the end of the change if the change covers it.
+ function adjustForChange(pos, change) {
+ if (cmp(pos, change.from) < 0) return pos;
+ if (cmp(pos, change.to) <= 0) return changeEnd(change);
+
+ var line =
+ pos.line + change.text.length - (change.to.line - change.from.line) - 1,
+ ch = pos.ch;
+ if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
+ return Pos(line, ch);
+ }
+
+ function computeSelAfterChange(doc, change) {
+ var out = [];
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ out.push(
+ new Range(
+ adjustForChange(range.anchor, change),
+ adjustForChange(range.head, change)
+ )
+ );
+ }
+ return normalizeSelection(out, doc.sel.primIndex);
+ }
+
+ function offsetPos(pos, old, nw) {
+ if (pos.line == old.line) return Pos(nw.line, pos.ch - old.ch + nw.ch);
+ else return Pos(nw.line + (pos.line - old.line), pos.ch);
+ }
+
+ // Used by replaceSelections to allow moving the selection to the
+ // start or around the replaced test. Hint may be "start" or "around".
+ function computeReplacedSel(doc, changes, hint) {
+ var out = [];
+ var oldPrev = Pos(doc.first, 0),
+ newPrev = oldPrev;
+ for (var i = 0; i < changes.length; i++) {
+ var change = changes[i];
+ var from = offsetPos(change.from, oldPrev, newPrev);
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+ oldPrev = change.to;
+ newPrev = to;
+ if (hint == "around") {
+ var range = doc.sel.ranges[i],
+ inv = cmp(range.head, range.anchor) < 0;
+ out[i] = new Range(inv ? to : from, inv ? from : to);
+ } else {
+ out[i] = new Range(from, from);
+ }
+ }
+ return new Selection(out, doc.sel.primIndex);
+ }
+
+ // Allow "beforeChange" event handlers to influence a change
+ function filterChange(doc, change, update) {
+ var obj = {
+ canceled: false,
+ from: change.from,
+ to: change.to,
+ text: change.text,
+ origin: change.origin,
+ cancel: function () {
+ this.canceled = true;
+ },
+ };
+ if (update)
+ obj.update = function (from, to, text, origin) {
+ if (from) this.from = clipPos(doc, from);
+ if (to) this.to = clipPos(doc, to);
+ if (text) this.text = text;
+ if (origin !== undefined) this.origin = origin;
+ };
+ signal(doc, "beforeChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
+
+ if (obj.canceled) return null;
+ return { from: obj.from, to: obj.to, text: obj.text, origin: obj.origin };
+ }
+
+ // Apply a change to a document, and add it to the document's
+ // history, and propagating it to all linked documents.
+ function makeChange(doc, change, ignoreReadOnly) {
+ if (doc.cm) {
+ if (!doc.cm.curOp)
+ return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
+ if (doc.cm.state.suppressEdits) return;
+ }
+
+ if (
+ hasHandler(doc, "beforeChange") ||
+ (doc.cm && hasHandler(doc.cm, "beforeChange"))
+ ) {
+ change = filterChange(doc, change, true);
+ if (!change) return;
+ }
+
+ // Possibly split or suppress the update based on the presence
+ // of read-only spans in its range.
+ var split =
+ sawReadOnlySpans &&
+ !ignoreReadOnly &&
+ removeReadOnlyRanges(doc, change.from, change.to);
+ if (split) {
+ for (var i = split.length - 1; i >= 0; --i)
+ makeChangeInner(doc, {
+ from: split[i].from,
+ to: split[i].to,
+ text: i ? [""] : change.text,
+ });
+ } else {
+ makeChangeInner(doc, change);
+ }
+ }
+
+ function makeChangeInner(doc, change) {
+ if (
+ change.text.length == 1 &&
+ change.text[0] == "" &&
+ cmp(change.from, change.to) == 0
+ )
+ return;
+ var selAfter = computeSelAfterChange(doc, change);
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+ makeChangeSingleDoc(
+ doc,
+ change,
+ selAfter,
+ stretchSpansOverChange(doc, change)
+ );
+ var rebased = [];
+
+ linkedDocs(doc, function (doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(
+ doc,
+ change,
+ null,
+ stretchSpansOverChange(doc, change)
+ );
+ });
+ }
+
+ // Revert a change stored in a document's history.
+ function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+ if (doc.cm && doc.cm.state.suppressEdits) return;
+
+ var hist = doc.history,
+ event,
+ selAfter = doc.sel;
+ var source = type == "undo" ? hist.done : hist.undone,
+ dest = type == "undo" ? hist.undone : hist.done;
+
+ // Verify that there is a useable event (so that ctrl-z won't
+ // needlessly clear selection events)
+ for (var i = 0; i < source.length; i++) {
+ event = source[i];
+ if (
+ allowSelectionOnly
+ ? event.ranges && !event.equals(doc.sel)
+ : !event.ranges
+ )
+ break;
+ }
+ if (i == source.length) return;
+ hist.lastOrigin = hist.lastSelOrigin = null;
+
+ for (;;) {
+ event = source.pop();
+ if (event.ranges) {
+ pushSelectionToHistory(event, dest);
+ if (allowSelectionOnly && !event.equals(doc.sel)) {
+ setSelection(doc, event, { clearRedo: false });
+ return;
+ }
+ selAfter = event;
+ } else break;
+ }
+
+ // Build up a reverse change object to add to the opposite history
+ // stack (redo when undoing, and vice versa).
+ var antiChanges = [];
+ pushSelectionToHistory(selAfter, dest);
+ dest.push({ changes: antiChanges, generation: hist.generation });
+ hist.generation = event.generation || ++hist.maxGeneration;
+
+ var filter =
+ hasHandler(doc, "beforeChange") ||
+ (doc.cm && hasHandler(doc.cm, "beforeChange"));
+
+ for (var i = event.changes.length - 1; i >= 0; --i) {
+ var change = event.changes[i];
+ change.origin = type;
+ if (filter && !filterChange(doc, change, false)) {
+ source.length = 0;
+ return;
+ }
+
+ antiChanges.push(historyChangeFromChange(doc, change));
+
+ var after = i ? computeSelAfterChange(doc, change) : lst(source);
+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+ if (!i && doc.cm)
+ doc.cm.scrollIntoView({ from: change.from, to: changeEnd(change) });
+ var rebased = [];
+
+ // Propagate to the linked documents
+ linkedDocs(doc, function (doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+ });
+ }
+ }
+
+ // Sub-views need their line numbers shifted when text is added
+ // above or below them in the parent document.
+ function shiftDoc(doc, distance) {
+ if (distance == 0) return;
+ doc.first += distance;
+ doc.sel = new Selection(
+ map(doc.sel.ranges, function (range) {
+ return new Range(
+ Pos(range.anchor.line + distance, range.anchor.ch),
+ Pos(range.head.line + distance, range.head.ch)
+ );
+ }),
+ doc.sel.primIndex
+ );
+ if (doc.cm) {
+ regChange(doc.cm, doc.first, doc.first - distance, distance);
+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+ regLineChange(doc.cm, l, "gutter");
+ }
+ }
+
+ // More lower-level change function, handling only a single document
+ // (not linked ones).
+ function makeChangeSingleDoc(doc, change, selAfter, spans) {
+ if (doc.cm && !doc.cm.curOp)
+ return operation(doc.cm, makeChangeSingleDoc)(
+ doc,
+ change,
+ selAfter,
+ spans
+ );
+
+ if (change.to.line < doc.first) {
+ shiftDoc(
+ doc,
+ change.text.length - 1 - (change.to.line - change.from.line)
+ );
+ return;
+ }
+ if (change.from.line > doc.lastLine()) return;
+
+ // Clip the change to the size of this doc
+ if (change.from.line < doc.first) {
+ var shift = change.text.length - 1 - (doc.first - change.from.line);
+ shiftDoc(doc, shift);
+ change = {
+ from: Pos(doc.first, 0),
+ to: Pos(change.to.line + shift, change.to.ch),
+ text: [lst(change.text)],
+ origin: change.origin,
+ };
+ }
+ var last = doc.lastLine();
+ if (change.to.line > last) {
+ change = {
+ from: change.from,
+ to: Pos(last, getLine(doc, last).text.length),
+ text: [change.text[0]],
+ origin: change.origin,
+ };
+ }
+
+ change.removed = getBetween(doc, change.from, change.to);
+
+ if (!selAfter) selAfter = computeSelAfterChange(doc, change);
+ if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
+ else updateDoc(doc, change, spans);
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+ }
+
+ // Handle the interaction of a change to a document with the editor
+ // that this document is part of.
+ function makeChangeSingleDocInEditor(cm, change, spans) {
+ var doc = cm.doc,
+ display = cm.display,
+ from = change.from,
+ to = change.to;
+
+ var recomputeMaxLength = false,
+ checkWidthStart = from.line;
+ if (!cm.options.lineWrapping) {
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+ doc.iter(checkWidthStart, to.line + 1, function (line) {
+ if (line == display.maxLine) {
+ recomputeMaxLength = true;
+ return true;
+ }
+ });
+ }
+
+ if (doc.sel.contains(change.from, change.to) > -1) signalCursorActivity(cm);
+
+ updateDoc(doc, change, spans, estimateHeight(cm));
+
+ if (!cm.options.lineWrapping) {
+ doc.iter(
+ checkWidthStart,
+ from.line + change.text.length,
+ function (line) {
+ var len = lineLength(line);
+ if (len > display.maxLineLength) {
+ display.maxLine = line;
+ display.maxLineLength = len;
+ display.maxLineChanged = true;
+ recomputeMaxLength = false;
+ }
+ }
+ );
+ if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
+ }
+
+ // Adjust frontier, schedule worker
+ doc.frontier = Math.min(doc.frontier, from.line);
+ startWorker(cm, 400);
+
+ var lendiff = change.text.length - (to.line - from.line) - 1;
+ // Remember that these lines changed, for updating the display
+ if (change.full) regChange(cm);
+ else if (
+ from.line == to.line &&
+ change.text.length == 1 &&
+ !isWholeLineUpdate(cm.doc, change)
+ )
+ regLineChange(cm, from.line, "text");
+ else regChange(cm, from.line, to.line + 1, lendiff);
+
+ var changesHandler = hasHandler(cm, "changes"),
+ changeHandler = hasHandler(cm, "change");
+ if (changeHandler || changesHandler) {
+ var obj = {
+ from: from,
+ to: to,
+ text: change.text,
+ removed: change.removed,
+ origin: change.origin,
+ };
+ if (changeHandler) signalLater(cm, "change", cm, obj);
+ if (changesHandler)
+ (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
+ }
+ cm.display.selForContextMenu = null;
+ }
+
+ function replaceRange(doc, code, from, to, origin) {
+ if (!to) to = from;
+ if (cmp(to, from) < 0) {
+ var tmp = to;
+ to = from;
+ from = tmp;
+ }
+ if (typeof code == "string") code = doc.splitLines(code);
+ makeChange(doc, { from: from, to: to, text: code, origin: origin });
+ }
+
+ // SCROLLING THINGS INTO VIEW
+
+ // If an editor sits on the top or bottom of the window, partially
+ // scrolled out of view, this ensures that the cursor is visible.
+ function maybeScrollWindow(cm, coords) {
+ if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
+
+ var display = cm.display,
+ box = display.sizer.getBoundingClientRect(),
+ doScroll = null;
+ if (coords.top + box.top < 0) doScroll = true;
+ else if (
+ coords.bottom + box.top >
+ (window.innerHeight || document.documentElement.clientHeight)
+ )
+ doScroll = false;
+ if (doScroll != null && !phantom) {
+ var scrollNode = elt(
+ "div",
+ "\u200b",
+ null,
+ "position: absolute; top: " +
+ (coords.top - display.viewOffset - paddingTop(cm.display)) +
+ "px; height: " +
+ (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) +
+ "px; left: " +
+ coords.left +
+ "px; width: 2px;"
+ );
+ cm.display.lineSpace.appendChild(scrollNode);
+ scrollNode.scrollIntoView(doScroll);
+ cm.display.lineSpace.removeChild(scrollNode);
+ }
+ }
+
+ // Scroll a given position into view (immediately), verifying that
+ // it actually became visible (as line heights are accurately
+ // measured, the position of something may 'drift' during drawing).
+ function scrollPosIntoView(cm, pos, end, margin) {
+ if (margin == null) margin = 0;
+ for (var limit = 0; limit < 5; limit++) {
+ var changed = false,
+ coords = cursorCoords(cm, pos);
+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+ var scrollPos = calculateScrollPos(
+ cm,
+ Math.min(coords.left, endCoords.left),
+ Math.min(coords.top, endCoords.top) - margin,
+ Math.max(coords.left, endCoords.left),
+ Math.max(coords.bottom, endCoords.bottom) + margin
+ );
+ var startTop = cm.doc.scrollTop,
+ startLeft = cm.doc.scrollLeft;
+ if (scrollPos.scrollTop != null) {
+ setScrollTop(cm, scrollPos.scrollTop);
+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
+ }
+ if (scrollPos.scrollLeft != null) {
+ setScrollLeft(cm, scrollPos.scrollLeft);
+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
+ }
+ if (!changed) break;
+ }
+ return coords;
+ }
+
+ // Scroll a given set of coordinates into view (immediately).
+ function scrollIntoView(cm, x1, y1, x2, y2) {
+ var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
+ if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
+ if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
+ }
+
+ // Calculate a new scroll position needed to scroll the given
+ // rectangle into view. Returns an object with scrollTop and
+ // scrollLeft properties. When these are undefined, the
+ // vertical/horizontal position does not need to be adjusted.
+ function calculateScrollPos(cm, x1, y1, x2, y2) {
+ var display = cm.display,
+ snapMargin = textHeight(cm.display);
+ if (y1 < 0) y1 = 0;
+ var screentop =
+ cm.curOp && cm.curOp.scrollTop != null
+ ? cm.curOp.scrollTop
+ : display.scroller.scrollTop;
+ var screen = displayHeight(cm),
+ result = {};
+ if (y2 - y1 > screen) y2 = y1 + screen;
+ var docBottom = cm.doc.height + paddingVert(display);
+ var atTop = y1 < snapMargin,
+ atBottom = y2 > docBottom - snapMargin;
+ if (y1 < screentop) {
+ result.scrollTop = atTop ? 0 : y1;
+ } else if (y2 > screentop + screen) {
+ var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
+ if (newTop != screentop) result.scrollTop = newTop;
+ }
+
+ var screenleft =
+ cm.curOp && cm.curOp.scrollLeft != null
+ ? cm.curOp.scrollLeft
+ : display.scroller.scrollLeft;
+ var screenw =
+ displayWidth(cm) -
+ (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
+ var tooWide = x2 - x1 > screenw;
+ if (tooWide) x2 = x1 + screenw;
+ if (x1 < 10) result.scrollLeft = 0;
+ else if (x1 < screenleft)
+ result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
+ else if (x2 > screenw + screenleft - 3)
+ result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
+ return result;
+ }
+
+ // Store a relative adjustment to the scroll position in the current
+ // operation (to be applied when the operation finishes).
+ function addToScrollPos(cm, left, top) {
+ if (left != null || top != null) resolveScrollToPos(cm);
+ if (left != null)
+ cm.curOp.scrollLeft =
+ (cm.curOp.scrollLeft == null
+ ? cm.doc.scrollLeft
+ : cm.curOp.scrollLeft) + left;
+ if (top != null)
+ cm.curOp.scrollTop =
+ (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) +
+ top;
+ }
+
+ // Make sure that at the end of the operation the current cursor is
+ // shown.
+ function ensureCursorVisible(cm) {
+ resolveScrollToPos(cm);
+ var cur = cm.getCursor(),
+ from = cur,
+ to = cur;
+ if (!cm.options.lineWrapping) {
+ from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
+ to = Pos(cur.line, cur.ch + 1);
+ }
+ cm.curOp.scrollToPos = {
+ from: from,
+ to: to,
+ margin: cm.options.cursorScrollMargin,
+ isCursor: true,
+ };
+ }
+
+ // When an operation has its scrollToPos property set, and another
+ // scroll action is applied before the end of the operation, this
+ // 'simulates' scrolling that position into view in a cheap way, so
+ // that the effect of intermediate scroll commands is not ignored.
+ function resolveScrollToPos(cm) {
+ var range = cm.curOp.scrollToPos;
+ if (range) {
+ cm.curOp.scrollToPos = null;
+ var from = estimateCoords(cm, range.from),
+ to = estimateCoords(cm, range.to);
+ var sPos = calculateScrollPos(
+ cm,
+ Math.min(from.left, to.left),
+ Math.min(from.top, to.top) - range.margin,
+ Math.max(from.right, to.right),
+ Math.max(from.bottom, to.bottom) + range.margin
+ );
+ cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }
+
+ // API UTILITIES
+
+ // Indent the given line. The how parameter can be "smart",
+ // "add"/null, "subtract", or "prev". When aggressive is false
+ // (typically set to true for forced single-line indents), empty
+ // lines are not indented, and places where the mode returns Pass
+ // are left alone.
+ function indentLine(cm, n, how, aggressive) {
+ var doc = cm.doc,
+ state;
+ if (how == null) how = "add";
+ if (how == "smart") {
+ // Fall back to "prev" when the mode doesn't have an indentation
+ // method.
+ if (!doc.mode.indent) how = "prev";
+ else state = getStateBefore(cm, n);
+ }
+
+ var tabSize = cm.options.tabSize;
+ var line = getLine(doc, n),
+ curSpace = countColumn(line.text, null, tabSize);
+ if (line.stateAfter) line.stateAfter = null;
+ var curSpaceString = line.text.match(/^\s*/)[0],
+ indentation;
+ if (!aggressive && !/\S/.test(line.text)) {
+ indentation = 0;
+ how = "not";
+ } else if (how == "smart") {
+ indentation = doc.mode.indent(
+ state,
+ line.text.slice(curSpaceString.length),
+ line.text
+ );
+ if (indentation == Pass || indentation > 150) {
+ if (!aggressive) return;
+ how = "prev";
+ }
+ }
+ if (how == "prev") {
+ if (n > doc.first)
+ indentation = countColumn(getLine(doc, n - 1).text, null, tabSize);
+ else indentation = 0;
+ } else if (how == "add") {
+ indentation = curSpace + cm.options.indentUnit;
+ } else if (how == "subtract") {
+ indentation = curSpace - cm.options.indentUnit;
+ } else if (typeof how == "number") {
+ indentation = curSpace + how;
+ }
+ indentation = Math.max(0, indentation);
+
+ var indentString = "",
+ pos = 0;
+ if (cm.options.indentWithTabs)
+ for (var i = Math.floor(indentation / tabSize); i; --i) {
+ pos += tabSize;
+ indentString += "\t";
+ }
+ if (pos < indentation) indentString += spaceStr(indentation - pos);
+
+ if (indentString != curSpaceString) {
+ // PARINFER EDIT: "+indenthack" was: "+input"
+ replaceRange(
+ doc,
+ indentString,
+ Pos(n, 0),
+ Pos(n, curSpaceString.length),
+ "+indenthack"
+ );
+
+ line.stateAfter = null;
+ return true;
+ } else {
+ // Ensure that, if the cursor was in the whitespace at the start
+ // of the line, it is moved to the end of that space.
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ if (range.head.line == n && range.head.ch < curSpaceString.length) {
+ var pos = Pos(n, curSpaceString.length);
+ replaceOneSelection(doc, i, new Range(pos, pos));
+ break;
+ }
+ }
+ }
+ }
+
+ // Utility for applying a change to a line by handle or number,
+ // returning the number and optionally registering the line as
+ // changed.
+ function changeLine(doc, handle, changeType, op) {
+ var no = handle,
+ line = handle;
+ if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
+ else no = lineNo(handle);
+ if (no == null) return null;
+ if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
+ return line;
+ }
+
+ // Helper for deleting text near the selection(s), used to implement
+ // backspace, delete, and similar functionality.
+ function deleteNearSelection(cm, compute) {
+ var ranges = cm.doc.sel.ranges,
+ kill = [];
+ // Build up a set of ranges to kill first, merging overlapping
+ // ranges.
+ for (var i = 0; i < ranges.length; i++) {
+ var toKill = compute(ranges[i]);
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+ var replaced = kill.pop();
+ if (cmp(replaced.from, toKill.from) < 0) {
+ toKill.from = replaced.from;
+ break;
+ }
+ }
+ kill.push(toKill);
+ }
+ // Next, remove those actual ranges.
+ runInOp(cm, function () {
+ for (var i = kill.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
+ ensureCursorVisible(cm);
+ });
+ }
+
+ // Used for horizontal relative motion. Dir is -1 or 1 (left or
+ // right), unit can be "char", "column" (like char, but doesn't
+ // cross line boundaries), "word" (across next word), or "group" (to
+ // the start of next group of word or non-word-non-whitespace
+ // chars). The visually param controls whether, in right-to-left
+ // text, direction 1 means to move towards the next index in the
+ // string, or towards the character to the right of the current
+ // position. The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosH(doc, pos, dir, unit, visually) {
+ var line = pos.line,
+ ch = pos.ch,
+ origDir = dir;
+ var lineObj = getLine(doc, line);
+ var possible = true;
+ function findNextLine() {
+ var l = line + dir;
+ if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
+ line = l;
+ return (lineObj = getLine(doc, l));
+ }
+ function moveOnce(boundToLine) {
+ var next = (visually ? moveVisually : moveLogically)(
+ lineObj,
+ ch,
+ dir,
+ true
+ );
+ if (next == null) {
+ if (!boundToLine && findNextLine()) {
+ if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
+ else ch = dir < 0 ? lineObj.text.length : 0;
+ } else return (possible = false);
+ } else ch = next;
+ return true;
+ }
+
+ if (unit == "char") moveOnce();
+ else if (unit == "column") moveOnce(true);
+ else if (unit == "word" || unit == "group") {
+ var sawType = null,
+ group = unit == "group";
+ var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+ for (var first = true; ; first = false) {
+ if (dir < 0 && !moveOnce(!first)) break;
+ var cur = lineObj.text.charAt(ch) || "\n";
+ var type = isWordChar(cur, helper)
+ ? "w"
+ : group && cur == "\n"
+ ? "n"
+ : !group || /\s/.test(cur)
+ ? null
+ : "p";
+ if (group && !first && !type) type = "s";
+ if (sawType && sawType != type) {
+ if (dir < 0) {
+ dir = 1;
+ moveOnce();
+ }
+ break;
+ }
+
+ if (type) sawType = type;
+ if (dir > 0 && !moveOnce(!first)) break;
+ }
+ }
+ var result = skipAtomic(doc, Pos(line, ch), origDir, true);
+ if (!possible) result.hitSide = true;
+ return result;
+ }
+
+ // For relative vertical movement. Dir may be -1 or 1. Unit can be
+ // "page" or "line". The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosV(cm, pos, dir, unit) {
+ var doc = cm.doc,
+ x = pos.left,
+ y;
+ if (unit == "page") {
+ var pageSize = Math.min(
+ cm.display.wrapper.clientHeight,
+ window.innerHeight || document.documentElement.clientHeight
+ );
+ y =
+ pos.top +
+ dir * (pageSize - (dir < 0 ? 1.5 : 0.5) * textHeight(cm.display));
+ } else if (unit == "line") {
+ y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+ }
+ for (;;) {
+ var target = coordsChar(cm, x, y);
+ if (!target.outside) break;
+ if (dir < 0 ? y <= 0 : y >= doc.height) {
+ target.hitSide = true;
+ break;
+ }
+ y += dir * 5;
+ }
+ return target;
+ }
+
+ // EDITOR METHODS
+
+ // The publicly visible API. Note that methodOp(f) means
+ // 'wrap f in an operation, performed on its `this` parameter'.
+
+ // This is not the complete set of editor methods. Most of the
+ // methods defined on the Doc type are also injected into
+ // CodeMirror.prototype, for backwards compatibility and
+ // convenience.
+
+ CodeMirror.prototype = {
+ constructor: CodeMirror,
+ focus: function () {
+ window.focus();
+ this.display.input.focus();
+ },
+
+ setOption: function (option, value) {
+ var options = this.options,
+ old = options[option];
+ if (options[option] == value && option != "mode") return;
+ options[option] = value;
+ if (optionHandlers.hasOwnProperty(option))
+ operation(this, optionHandlers[option])(this, value, old);
+ },
+
+ getOption: function (option) {
+ return this.options[option];
+ },
+ getDoc: function () {
+ return this.doc;
+ },
+
+ addKeyMap: function (map, bottom) {
+ this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
+ },
+ removeKeyMap: function (map) {
+ var maps = this.state.keyMaps;
+ for (var i = 0; i < maps.length; ++i)
+ if (maps[i] == map || maps[i].name == map) {
+ maps.splice(i, 1);
+ return true;
+ }
+ },
+
+ addOverlay: methodOp(function (spec, options) {
+ var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+ if (mode.startState) throw new Error("Overlays may not be stateful.");
+ this.state.overlays.push({
+ mode: mode,
+ modeSpec: spec,
+ opaque: options && options.opaque,
+ });
+ this.state.modeGen++;
+ regChange(this);
+ }),
+ removeOverlay: methodOp(function (spec) {
+ var overlays = this.state.overlays;
+ for (var i = 0; i < overlays.length; ++i) {
+ var cur = overlays[i].modeSpec;
+ if (cur == spec || (typeof spec == "string" && cur.name == spec)) {
+ overlays.splice(i, 1);
+ this.state.modeGen++;
+ regChange(this);
+ return;
+ }
+ }
+ }),
+
+ indentLine: methodOp(function (n, dir, aggressive) {
+ if (typeof dir != "string" && typeof dir != "number") {
+ if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
+ else dir = dir ? "add" : "subtract";
+ }
+ if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
+ }),
+ indentSelection: methodOp(function (how) {
+ var ranges = this.doc.sel.ranges,
+ end = -1;
+ for (var i = 0; i < ranges.length; i++) {
+ var range = ranges[i];
+ if (!range.empty()) {
+ var from = range.from(),
+ to = range.to();
+ var start = Math.max(end, from.line);
+ end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+ for (var j = start; j < end; ++j) indentLine(this, j, how);
+ var newRanges = this.doc.sel.ranges;
+ if (
+ from.ch == 0 &&
+ ranges.length == newRanges.length &&
+ newRanges[i].from().ch > 0
+ )
+ replaceOneSelection(
+ this.doc,
+ i,
+ new Range(from, newRanges[i].to()),
+ sel_dontScroll
+ );
+ } else if (range.head.line > end) {
+ indentLine(this, range.head.line, how, true);
+ end = range.head.line;
+ if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
+ }
+ }
+ }),
+
+ // Fetch the parser token for a given character. Useful for hacks
+ // that want to inspect the mode state (say, for completion).
+ getTokenAt: function (pos, precise) {
+ return takeToken(this, pos, precise);
+ },
+
+ getLineTokens: function (line, precise) {
+ return takeToken(this, Pos(line), precise, true);
+ },
+
+ getTokenTypeAt: function (pos) {
+ pos = clipPos(this.doc, pos);
+ var styles = getLineStyles(this, getLine(this.doc, pos.line));
+ var before = 0,
+ after = (styles.length - 1) / 2,
+ ch = pos.ch;
+ var type;
+ if (ch == 0) type = styles[2];
+ else
+ for (;;) {
+ var mid = (before + after) >> 1;
+ if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
+ else if (styles[mid * 2 + 1] < ch) before = mid + 1;
+ else {
+ type = styles[mid * 2 + 2];
+ break;
+ }
+ }
+ var cut = type ? type.indexOf("cm-overlay ") : -1;
+ return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
+ },
+
+ getModeAt: function (pos) {
+ var mode = this.doc.mode;
+ if (!mode.innerMode) return mode;
+ return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
+ },
+
+ getHelper: function (pos, type) {
+ return this.getHelpers(pos, type)[0];
+ },
+
+ getHelpers: function (pos, type) {
+ var found = [];
+ if (!helpers.hasOwnProperty(type)) return found;
+ var help = helpers[type],
+ mode = this.getModeAt(pos);
+ if (typeof mode[type] == "string") {
+ if (help[mode[type]]) found.push(help[mode[type]]);
+ } else if (mode[type]) {
+ for (var i = 0; i < mode[type].length; i++) {
+ var val = help[mode[type][i]];
+ if (val) found.push(val);
+ }
+ } else if (mode.helperType && help[mode.helperType]) {
+ found.push(help[mode.helperType]);
+ } else if (help[mode.name]) {
+ found.push(help[mode.name]);
+ }
+ for (var i = 0; i < help._global.length; i++) {
+ var cur = help._global[i];
+ if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+ found.push(cur.val);
+ }
+ return found;
+ },
+
+ getStateAfter: function (line, precise) {
+ var doc = this.doc;
+ line = clipLine(doc, line == null ? doc.first + doc.size - 1 : line);
+ return getStateBefore(this, line + 1, precise);
+ },
+
+ cursorCoords: function (start, mode) {
+ var pos,
+ range = this.doc.sel.primary();
+ if (start == null) pos = range.head;
+ else if (typeof start == "object") pos = clipPos(this.doc, start);
+ else pos = start ? range.from() : range.to();
+ return cursorCoords(this, pos, mode || "page");
+ },
+
+ charCoords: function (pos, mode) {
+ return charCoords(this, clipPos(this.doc, pos), mode || "page");
+ },
+
+ coordsChar: function (coords, mode) {
+ coords = fromCoordSystem(this, coords, mode || "page");
+ return coordsChar(this, coords.left, coords.top);
+ },
+
+ lineAtHeight: function (height, mode) {
+ height = fromCoordSystem(
+ this,
+ { top: height, left: 0 },
+ mode || "page"
+ ).top;
+ return lineAtHeight(this.doc, height + this.display.viewOffset);
+ },
+ heightAtLine: function (line, mode) {
+ var end = false,
+ lineObj;
+ if (typeof line == "number") {
+ var last = this.doc.first + this.doc.size - 1;
+ if (line < this.doc.first) line = this.doc.first;
+ else if (line > last) {
+ line = last;
+ end = true;
+ }
+ lineObj = getLine(this.doc, line);
+ } else {
+ lineObj = line;
+ }
+ return (
+ intoCoordSystem(this, lineObj, { top: 0, left: 0 }, mode || "page")
+ .top + (end ? this.doc.height - heightAtLine(lineObj) : 0)
+ );
+ },
+
+ defaultTextHeight: function () {
+ return textHeight(this.display);
+ },
+ defaultCharWidth: function () {
+ return charWidth(this.display);
+ },
+
+ setGutterMarker: methodOp(function (line, gutterID, value) {
+ return changeLine(this.doc, line, "gutter", function (line) {
+ var markers = line.gutterMarkers || (line.gutterMarkers = {});
+ markers[gutterID] = value;
+ if (!value && isEmpty(markers)) line.gutterMarkers = null;
+ return true;
+ });
+ }),
+
+ clearGutter: methodOp(function (gutterID) {
+ var cm = this,
+ doc = cm.doc,
+ i = doc.first;
+ doc.iter(function (line) {
+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+ line.gutterMarkers[gutterID] = null;
+ regLineChange(cm, i, "gutter");
+ if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
+ }
+ ++i;
+ });
+ }),
+
+ lineInfo: function (line) {
+ if (typeof line == "number") {
+ if (!isLine(this.doc, line)) return null;
+ var n = line;
+ line = getLine(this.doc, line);
+ if (!line) return null;
+ } else {
+ var n = lineNo(line);
+ if (n == null) return null;
+ }
+ return {
+ line: n,
+ handle: line,
+ text: line.text,
+ gutterMarkers: line.gutterMarkers,
+ textClass: line.textClass,
+ bgClass: line.bgClass,
+ wrapClass: line.wrapClass,
+ widgets: line.widgets,
+ };
+ },
+
+ getViewport: function () {
+ return { from: this.display.viewFrom, to: this.display.viewTo };
+ },
+
+ addWidget: function (pos, node, scroll, vert, horiz) {
+ var display = this.display;
+ pos = cursorCoords(this, clipPos(this.doc, pos));
+ var top = pos.bottom,
+ left = pos.left;
+ node.style.position = "absolute";
+ node.setAttribute("cm-ignore-events", "true");
+ this.display.input.setUneditable(node);
+ display.sizer.appendChild(node);
+ if (vert == "over") {
+ top = pos.top;
+ } else if (vert == "above" || vert == "near") {
+ var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+ hspace = Math.max(
+ display.sizer.clientWidth,
+ display.lineSpace.clientWidth
+ );
+ // Default to positioning above (if specified and possible); otherwise default to positioning below
+ if (
+ (vert == "above" || pos.bottom + node.offsetHeight > vspace) &&
+ pos.top > node.offsetHeight
+ )
+ top = pos.top - node.offsetHeight;
+ else if (pos.bottom + node.offsetHeight <= vspace) top = pos.bottom;
+ if (left + node.offsetWidth > hspace) left = hspace - node.offsetWidth;
+ }
+ node.style.top = top + "px";
+ node.style.left = node.style.right = "";
+ if (horiz == "right") {
+ left = display.sizer.clientWidth - node.offsetWidth;
+ node.style.right = "0px";
+ } else {
+ if (horiz == "left") left = 0;
+ else if (horiz == "middle")
+ left = (display.sizer.clientWidth - node.offsetWidth) / 2;
+ node.style.left = left + "px";
+ }
+ if (scroll)
+ scrollIntoView(
+ this,
+ left,
+ top,
+ left + node.offsetWidth,
+ top + node.offsetHeight
+ );
+ },
+
+ triggerOnKeyDown: methodOp(onKeyDown),
+ triggerOnKeyPress: methodOp(onKeyPress),
+ triggerOnKeyUp: onKeyUp,
+
+ execCommand: function (cmd) {
+ if (commands.hasOwnProperty(cmd)) return commands[cmd].call(null, this);
+ },
+
+ triggerElectric: methodOp(function (text) {
+ triggerElectric(this, text);
+ }),
+
+ findPosH: function (from, amount, unit, visually) {
+ var dir = 1;
+ if (amount < 0) {
+ dir = -1;
+ amount = -amount;
+ }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ cur = findPosH(this.doc, cur, dir, unit, visually);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveH: methodOp(function (dir, unit) {
+ var cm = this;
+ cm.extendSelectionsBy(function (range) {
+ if (cm.display.shift || cm.doc.extend || range.empty())
+ return findPosH(
+ cm.doc,
+ range.head,
+ dir,
+ unit,
+ cm.options.rtlMoveVisually
+ );
+ else return dir < 0 ? range.from() : range.to();
+ }, sel_move);
+ }),
+
+ deleteH: methodOp(function (dir, unit) {
+ var sel = this.doc.sel,
+ doc = this.doc;
+ if (sel.somethingSelected()) doc.replaceSelection("", null, "+delete");
+ else
+ deleteNearSelection(this, function (range) {
+ var other = findPosH(doc, range.head, dir, unit, false);
+ return dir < 0
+ ? { from: other, to: range.head }
+ : { from: range.head, to: other };
+ });
+ }),
+
+ findPosV: function (from, amount, unit, goalColumn) {
+ var dir = 1,
+ x = goalColumn;
+ if (amount < 0) {
+ dir = -1;
+ amount = -amount;
+ }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ var coords = cursorCoords(this, cur, "div");
+ if (x == null) x = coords.left;
+ else coords.left = x;
+ cur = findPosV(this, coords, dir, unit);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveV: methodOp(function (dir, unit) {
+ var cm = this,
+ doc = this.doc,
+ goals = [];
+ var collapse =
+ !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
+ doc.extendSelectionsBy(function (range) {
+ if (collapse) return dir < 0 ? range.from() : range.to();
+ var headPos = cursorCoords(cm, range.head, "div");
+ if (range.goalColumn != null) headPos.left = range.goalColumn;
+ goals.push(headPos.left);
+ var pos = findPosV(cm, headPos, dir, unit);
+ if (unit == "page" && range == doc.sel.primary())
+ addToScrollPos(
+ cm,
+ null,
+ charCoords(cm, pos, "div").top - headPos.top
+ );
+ return pos;
+ }, sel_move);
+ if (goals.length)
+ for (var i = 0; i < doc.sel.ranges.length; i++)
+ doc.sel.ranges[i].goalColumn = goals[i];
+ }),
+
+ // Find the word at the given position (as returned by coordsChar).
+ findWordAt: function (pos) {
+ var doc = this.doc,
+ line = getLine(doc, pos.line).text;
+ var start = pos.ch,
+ end = pos.ch;
+ if (line) {
+ var helper = this.getHelper(pos, "wordChars");
+ if ((pos.xRel < 0 || end == line.length) && start) --start;
+ else ++end;
+ var startChar = line.charAt(start);
+ var check = isWordChar(startChar, helper)
+ ? function (ch) {
+ return isWordChar(ch, helper);
+ }
+ : /\s/.test(startChar)
+ ? function (ch) {
+ return /\s/.test(ch);
+ }
+ : function (ch) {
+ return !/\s/.test(ch) && !isWordChar(ch);
+ };
+ while (start > 0 && check(line.charAt(start - 1))) --start;
+ while (end < line.length && check(line.charAt(end))) ++end;
+ }
+ return new Range(Pos(pos.line, start), Pos(pos.line, end));
+ },
+
+ toggleOverwrite: function (value) {
+ if (value != null && value == this.state.overwrite) return;
+ if ((this.state.overwrite = !this.state.overwrite))
+ addClass(this.display.cursorDiv, "CodeMirror-overwrite");
+ else rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
+
+ signal(this, "overwriteToggle", this, this.state.overwrite);
+ },
+ hasFocus: function () {
+ return this.display.input.getField() == activeElt();
+ },
+
+ scrollTo: methodOp(function (x, y) {
+ if (x != null || y != null) resolveScrollToPos(this);
+ if (x != null) this.curOp.scrollLeft = x;
+ if (y != null) this.curOp.scrollTop = y;
+ }),
+ getScrollInfo: function () {
+ var scroller = this.display.scroller;
+ return {
+ left: scroller.scrollLeft,
+ top: scroller.scrollTop,
+ height:
+ scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+ width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+ clientHeight: displayHeight(this),
+ clientWidth: displayWidth(this),
+ };
+ },
+
+ scrollIntoView: methodOp(function (range, margin) {
+ if (range == null) {
+ range = { from: this.doc.sel.primary().head, to: null };
+ if (margin == null) margin = this.options.cursorScrollMargin;
+ } else if (typeof range == "number") {
+ range = { from: Pos(range, 0), to: null };
+ } else if (range.from == null) {
+ range = { from: range, to: null };
+ }
+ if (!range.to) range.to = range.from;
+ range.margin = margin || 0;
+
+ if (range.from.line != null) {
+ resolveScrollToPos(this);
+ this.curOp.scrollToPos = range;
+ } else {
+ var sPos = calculateScrollPos(
+ this,
+ Math.min(range.from.left, range.to.left),
+ Math.min(range.from.top, range.to.top) - range.margin,
+ Math.max(range.from.right, range.to.right),
+ Math.max(range.from.bottom, range.to.bottom) + range.margin
+ );
+ this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }),
+
+ setSize: methodOp(function (width, height) {
+ var cm = this;
+ function interpret(val) {
+ return typeof val == "number" || /^\d+$/.test(String(val))
+ ? val + "px"
+ : val;
+ }
+ if (width != null) cm.display.wrapper.style.width = interpret(width);
+ if (height != null) cm.display.wrapper.style.height = interpret(height);
+ if (cm.options.lineWrapping) clearLineMeasurementCache(this);
+ var lineNo = cm.display.viewFrom;
+ cm.doc.iter(lineNo, cm.display.viewTo, function (line) {
+ if (line.widgets)
+ for (var i = 0; i < line.widgets.length; i++)
+ if (line.widgets[i].noHScroll) {
+ regLineChange(cm, lineNo, "widget");
+ break;
+ }
+ ++lineNo;
+ });
+ cm.curOp.forceUpdate = true;
+ signal(cm, "refresh", this);
+ }),
+
+ operation: function (f) {
+ return runInOp(this, f);
+ },
+
+ refresh: methodOp(function () {
+ var oldHeight = this.display.cachedTextHeight;
+ regChange(this);
+ this.curOp.forceUpdate = true;
+ clearCaches(this);
+ this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
+ updateGutterSpace(this);
+ if (
+ oldHeight == null ||
+ Math.abs(oldHeight - textHeight(this.display)) > 0.5
+ )
+ estimateLineHeights(this);
+ signal(this, "refresh", this);
+ }),
+
+ swapDoc: methodOp(function (doc) {
+ var old = this.doc;
+ old.cm = null;
+ attachDoc(this, doc);
+ clearCaches(this);
+ this.display.input.reset();
+ this.scrollTo(doc.scrollLeft, doc.scrollTop);
+ this.curOp.forceScroll = true;
+ signalLater(this, "swapDoc", this, old);
+ return old;
+ }),
+
+ getInputField: function () {
+ return this.display.input.getField();
+ },
+ getWrapperElement: function () {
+ return this.display.wrapper;
+ },
+ getScrollerElement: function () {
+ return this.display.scroller;
+ },
+ getGutterElement: function () {
+ return this.display.gutters;
+ },
+ };
+ eventMixin(CodeMirror);
+
+ // OPTION DEFAULTS
+
+ // The default configuration options.
+ var defaults = (CodeMirror.defaults = {});
+ // Functions to run when options are changed.
+ var optionHandlers = (CodeMirror.optionHandlers = {});
+
+ function option(name, deflt, handle, notOnInit) {
+ CodeMirror.defaults[name] = deflt;
+ if (handle)
+ optionHandlers[name] = notOnInit
+ ? function (cm, val, old) {
+ if (old != Init) handle(cm, val, old);
+ }
+ : handle;
+ }
+
+ // Passed to option handlers when there is no old value.
+ var Init = (CodeMirror.Init = {
+ toString: function () {
+ return "CodeMirror.Init";
+ },
+ });
+
+ // These two are, on init, called from the constructor because they
+ // have to be initialized before the editor can start at all.
+ option(
+ "value",
+ "",
+ function (cm, val) {
+ cm.setValue(val);
+ },
+ true
+ );
+ option(
+ "mode",
+ null,
+ function (cm, val) {
+ cm.doc.modeOption = val;
+ loadMode(cm);
+ },
+ true
+ );
+
+ option("indentUnit", 2, loadMode, true);
+ option("indentWithTabs", false);
+ option("smartIndent", true);
+ option(
+ "tabSize",
+ 4,
+ function (cm) {
+ resetModeState(cm);
+ clearCaches(cm);
+ regChange(cm);
+ },
+ true
+ );
+ option("lineSeparator", null, function (cm, val) {
+ cm.doc.lineSep = val;
+ if (!val) return;
+ var newBreaks = [],
+ lineNo = cm.doc.first;
+ cm.doc.iter(function (line) {
+ for (var pos = 0; ; ) {
+ var found = line.text.indexOf(val, pos);
+ if (found == -1) break;
+ pos = found + val.length;
+ newBreaks.push(Pos(lineNo, found));
+ }
+ lineNo++;
+ });
+ for (var i = newBreaks.length - 1; i >= 0; i--)
+ replaceRange(
+ cm.doc,
+ val,
+ newBreaks[i],
+ Pos(newBreaks[i].line, newBreaks[i].ch + val.length)
+ );
+ });
+ option(
+ "specialChars",
+ /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g,
+ function (cm, val, old) {
+ cm.state.specialChars = new RegExp(
+ val.source + (val.test("\t") ? "" : "|\t"),
+ "g"
+ );
+ if (old != CodeMirror.Init) cm.refresh();
+ }
+ );
+ option(
+ "specialCharPlaceholder",
+ defaultSpecialCharPlaceholder,
+ function (cm) {
+ cm.refresh();
+ },
+ true
+ );
+ option("electricChars", true);
+ option(
+ "inputStyle",
+ mobile ? "contenteditable" : "textarea",
+ function () {
+ throw new Error(
+ "inputStyle can not (yet) be changed in a running editor"
+ ); // FIXME
+ },
+ true
+ );
+ option("rtlMoveVisually", !windows);
+ option("wholeLineUpdateBefore", true);
+
+ option(
+ "theme",
+ "default",
+ function (cm) {
+ themeChanged(cm);
+ guttersChanged(cm);
+ },
+ true
+ );
+ option("keyMap", "default", function (cm, val, old) {
+ var next = getKeyMap(val);
+ var prev = old != CodeMirror.Init && getKeyMap(old);
+ if (prev && prev.detach) prev.detach(cm, next);
+ if (next.attach) next.attach(cm, prev || null);
+ });
+ option("extraKeys", null);
+
+ option("lineWrapping", false, wrappingChanged, true);
+ option(
+ "gutters",
+ [],
+ function (cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ },
+ true
+ );
+ option(
+ "fixedGutter",
+ true,
+ function (cm, val) {
+ cm.display.gutters.style.left = val
+ ? compensateForHScroll(cm.display) + "px"
+ : "0";
+ cm.refresh();
+ },
+ true
+ );
+ option(
+ "coverGutterNextToScrollbar",
+ false,
+ function (cm) {
+ updateScrollbars(cm);
+ },
+ true
+ );
+ option(
+ "scrollbarStyle",
+ "native",
+ function (cm) {
+ initScrollbars(cm);
+ updateScrollbars(cm);
+ cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+ cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+ },
+ true
+ );
+ option(
+ "lineNumbers",
+ false,
+ function (cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ },
+ true
+ );
+ option("firstLineNumber", 1, guttersChanged, true);
+ option(
+ "lineNumberFormatter",
+ function (integer) {
+ return integer;
+ },
+ guttersChanged,
+ true
+ );
+ option("showCursorWhenSelecting", false, updateSelection, true);
+
+ option("resetSelectionOnContextMenu", true);
+ option("lineWiseCopyCut", true);
+
+ option("readOnly", false, function (cm, val) {
+ if (val == "nocursor") {
+ onBlur(cm);
+ cm.display.input.blur();
+ cm.display.disabled = true;
+ } else {
+ cm.display.disabled = false;
+ }
+ cm.display.input.readOnlyChanged(val);
+ });
+ option(
+ "disableInput",
+ false,
+ function (cm, val) {
+ if (!val) cm.display.input.reset();
+ },
+ true
+ );
+ option("dragDrop", true, dragDropChanged);
+
+ option("cursorBlinkRate", 530);
+ option("cursorScrollMargin", 0);
+ option("cursorHeight", 1, updateSelection, true);
+ option("singleCursorHeightPerLine", true, updateSelection, true);
+ option("workTime", 100);
+ option("workDelay", 100);
+ option("flattenSpans", true, resetModeState, true);
+ option("addModeClass", false, resetModeState, true);
+ option("pollInterval", 100);
+ option("undoDepth", 200, function (cm, val) {
+ cm.doc.history.undoDepth = val;
+ });
+ option("historyEventDelay", 1250);
+ option(
+ "viewportMargin",
+ 10,
+ function (cm) {
+ cm.refresh();
+ },
+ true
+ );
+ option("maxHighlightLength", 10000, resetModeState, true);
+ option("moveInputWithCursor", true, function (cm, val) {
+ if (!val) cm.display.input.resetPosition();
+ });
+
+ option("tabindex", null, function (cm, val) {
+ cm.display.input.getField().tabIndex = val || "";
+ });
+ option("autofocus", null);
+
+ // MODE DEFINITION AND QUERYING
+
+ // Known modes, by name and by MIME
+ var modes = (CodeMirror.modes = {}),
+ mimeModes = (CodeMirror.mimeModes = {});
+
+ // Extra arguments are stored as the mode's dependencies, which is
+ // used by (legacy) mechanisms like loadmode.js to automatically
+ // load a mode. (Preferred mechanism is the require/define calls.)
+ CodeMirror.defineMode = function (name, mode) {
+ if (!CodeMirror.defaults.mode && name != "null")
+ CodeMirror.defaults.mode = name;
+ if (arguments.length > 2)
+ mode.dependencies = Array.prototype.slice.call(arguments, 2);
+ modes[name] = mode;
+ };
+
+ CodeMirror.defineMIME = function (mime, spec) {
+ mimeModes[mime] = spec;
+ };
+
+ // Given a MIME type, a {name, ...options} config object, or a name
+ // string, return a mode config object.
+ CodeMirror.resolveMode = function (spec) {
+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+ spec = mimeModes[spec];
+ } else if (
+ spec &&
+ typeof spec.name == "string" &&
+ mimeModes.hasOwnProperty(spec.name)
+ ) {
+ var found = mimeModes[spec.name];
+ if (typeof found == "string") found = { name: found };
+ spec = createObj(found, spec);
+ spec.name = found.name;
+ } else if (
+ typeof spec == "string" &&
+ /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)
+ ) {
+ return CodeMirror.resolveMode("application/xml");
+ }
+ if (typeof spec == "string") return { name: spec };
+ else return spec || { name: "null" };
+ };
+
+ // Given a mode spec (anything that resolveMode accepts), find and
+ // initialize an actual mode object.
+ CodeMirror.getMode = function (options, spec) {
+ var spec = CodeMirror.resolveMode(spec);
+ var mfactory = modes[spec.name];
+ if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+ var modeObj = mfactory(options, spec);
+ if (modeExtensions.hasOwnProperty(spec.name)) {
+ var exts = modeExtensions[spec.name];
+ for (var prop in exts) {
+ if (!exts.hasOwnProperty(prop)) continue;
+ if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
+ modeObj[prop] = exts[prop];
+ }
+ }
+ modeObj.name = spec.name;
+ if (spec.helperType) modeObj.helperType = spec.helperType;
+ if (spec.modeProps)
+ for (var prop in spec.modeProps) modeObj[prop] = spec.modeProps[prop];
+
+ return modeObj;
+ };
+
+ // Minimal default mode.
+ CodeMirror.defineMode("null", function () {
+ return {
+ token: function (stream) {
+ stream.skipToEnd();
+ },
+ };
+ });
+ CodeMirror.defineMIME("text/plain", "null");
+
+ // This can be used to attach properties to mode objects from
+ // outside the actual mode definition.
+ var modeExtensions = (CodeMirror.modeExtensions = {});
+ CodeMirror.extendMode = function (mode, properties) {
+ var exts = modeExtensions.hasOwnProperty(mode)
+ ? modeExtensions[mode]
+ : (modeExtensions[mode] = {});
+ copyObj(properties, exts);
+ };
+
+ // EXTENSIONS
+
+ CodeMirror.defineExtension = function (name, func) {
+ CodeMirror.prototype[name] = func;
+ };
+ CodeMirror.defineDocExtension = function (name, func) {
+ Doc.prototype[name] = func;
+ };
+ CodeMirror.defineOption = option;
+
+ var initHooks = [];
+ CodeMirror.defineInitHook = function (f) {
+ initHooks.push(f);
+ };
+
+ var helpers = (CodeMirror.helpers = {});
+ CodeMirror.registerHelper = function (type, name, value) {
+ if (!helpers.hasOwnProperty(type))
+ helpers[type] = CodeMirror[type] = { _global: [] };
+ helpers[type][name] = value;
+ };
+ CodeMirror.registerGlobalHelper = function (type, name, predicate, value) {
+ CodeMirror.registerHelper(type, name, value);
+ helpers[type]._global.push({ pred: predicate, val: value });
+ };
+
+ // MODE STATE HANDLING
+
+ // Utility functions for working with state. Exported because nested
+ // modes need to do this for their inner modes.
+
+ var copyState = (CodeMirror.copyState = function (mode, state) {
+ if (state === true) return state;
+ if (mode.copyState) return mode.copyState(state);
+ var nstate = {};
+ for (var n in state) {
+ var val = state[n];
+ if (val instanceof Array) val = val.concat([]);
+ nstate[n] = val;
+ }
+ return nstate;
+ });
+
+ var startState = (CodeMirror.startState = function (mode, a1, a2) {
+ return mode.startState ? mode.startState(a1, a2) : true;
+ });
+
+ // Given a mode and a state (for that mode), find the inner mode and
+ // state at the position that the state refers to.
+ CodeMirror.innerMode = function (mode, state) {
+ while (mode.innerMode) {
+ var info = mode.innerMode(state);
+ if (!info || info.mode == mode) break;
+ state = info.state;
+ mode = info.mode;
+ }
+ return info || { mode: mode, state: state };
+ };
+
+ // STANDARD COMMANDS
+
+ // Commands are parameter-less actions that can be performed on an
+ // editor, mostly used for keybindings.
+ var commands = (CodeMirror.commands = {
+ selectAll: function (cm) {
+ cm.setSelection(
+ Pos(cm.firstLine(), 0),
+ Pos(cm.lastLine()),
+ sel_dontScroll
+ );
+ },
+ singleSelection: function (cm) {
+ cm.setSelection(
+ cm.getCursor("anchor"),
+ cm.getCursor("head"),
+ sel_dontScroll
+ );
+ },
+ killLine: function (cm) {
+ deleteNearSelection(cm, function (range) {
+ if (range.empty()) {
+ var len = getLine(cm.doc, range.head.line).text.length;
+ if (range.head.ch == len && range.head.line < cm.lastLine())
+ return { from: range.head, to: Pos(range.head.line + 1, 0) };
+ else return { from: range.head, to: Pos(range.head.line, len) };
+ } else {
+ return { from: range.from(), to: range.to() };
+ }
+ });
+ },
+ deleteLine: function (cm) {
+ deleteNearSelection(cm, function (range) {
+ return {
+ from: Pos(range.from().line, 0),
+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0)),
+ };
+ });
+ },
+ delLineLeft: function (cm) {
+ deleteNearSelection(cm, function (range) {
+ return { from: Pos(range.from().line, 0), to: range.from() };
+ });
+ },
+ delWrappedLineLeft: function (cm) {
+ deleteNearSelection(cm, function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var leftPos = cm.coordsChar({ left: 0, top: top }, "div");
+ return { from: leftPos, to: range.from() };
+ });
+ },
+ delWrappedLineRight: function (cm) {
+ deleteNearSelection(cm, function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var rightPos = cm.coordsChar(
+ { left: cm.display.lineDiv.offsetWidth + 100, top: top },
+ "div"
+ );
+ return { from: range.from(), to: rightPos };
+ });
+ },
+ undo: function (cm) {
+ cm.undo();
+ },
+ redo: function (cm) {
+ cm.redo();
+ },
+ undoSelection: function (cm) {
+ cm.undoSelection();
+ },
+ redoSelection: function (cm) {
+ cm.redoSelection();
+ },
+ goDocStart: function (cm) {
+ cm.extendSelection(Pos(cm.firstLine(), 0));
+ },
+ goDocEnd: function (cm) {
+ cm.extendSelection(Pos(cm.lastLine()));
+ },
+ goLineStart: function (cm) {
+ cm.extendSelectionsBy(
+ function (range) {
+ return lineStart(cm, range.head.line);
+ },
+ { origin: "+move", bias: 1 }
+ );
+ },
+ goLineStartSmart: function (cm) {
+ cm.extendSelectionsBy(
+ function (range) {
+ return lineStartSmart(cm, range.head);
+ },
+ { origin: "+move", bias: 1 }
+ );
+ },
+ goLineEnd: function (cm) {
+ cm.extendSelectionsBy(
+ function (range) {
+ return lineEnd(cm, range.head.line);
+ },
+ { origin: "+move", bias: -1 }
+ );
+ },
+ goLineRight: function (cm) {
+ cm.extendSelectionsBy(function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar(
+ { left: cm.display.lineDiv.offsetWidth + 100, top: top },
+ "div"
+ );
+ }, sel_move);
+ },
+ goLineLeft: function (cm) {
+ cm.extendSelectionsBy(function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({ left: 0, top: top }, "div");
+ }, sel_move);
+ },
+ goLineLeftSmart: function (cm) {
+ cm.extendSelectionsBy(function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var pos = cm.coordsChar({ left: 0, top: top }, "div");
+ if (pos.ch < cm.getLine(pos.line).search(/\S/))
+ return lineStartSmart(cm, range.head);
+ return pos;
+ }, sel_move);
+ },
+ goLineUp: function (cm) {
+ cm.moveV(-1, "line");
+ },
+ goLineDown: function (cm) {
+ cm.moveV(1, "line");
+ },
+ goPageUp: function (cm) {
+ cm.moveV(-1, "page");
+ },
+ goPageDown: function (cm) {
+ cm.moveV(1, "page");
+ },
+ goCharLeft: function (cm) {
+ cm.moveH(-1, "char");
+ },
+ goCharRight: function (cm) {
+ cm.moveH(1, "char");
+ },
+ goColumnLeft: function (cm) {
+ cm.moveH(-1, "column");
+ },
+ goColumnRight: function (cm) {
+ cm.moveH(1, "column");
+ },
+ goWordLeft: function (cm) {
+ cm.moveH(-1, "word");
+ },
+ goGroupRight: function (cm) {
+ cm.moveH(1, "group");
+ },
+ goGroupLeft: function (cm) {
+ cm.moveH(-1, "group");
+ },
+ goWordRight: function (cm) {
+ cm.moveH(1, "word");
+ },
+ delCharBefore: function (cm) {
+ cm.deleteH(-1, "char");
+ },
+ delCharAfter: function (cm) {
+ cm.deleteH(1, "char");
+ },
+ delWordBefore: function (cm) {
+ cm.deleteH(-1, "word");
+ },
+ delWordAfter: function (cm) {
+ cm.deleteH(1, "word");
+ },
+ delGroupBefore: function (cm) {
+ cm.deleteH(-1, "group");
+ },
+ delGroupAfter: function (cm) {
+ cm.deleteH(1, "group");
+ },
+ indentAuto: function (cm) {
+ cm.indentSelection("smart");
+ },
+ indentMore: function (cm) {
+ cm.indentSelection("add");
+ },
+ indentLess: function (cm) {
+ cm.indentSelection("subtract");
+ },
+ insertTab: function (cm) {
+ cm.replaceSelection("\t");
+ },
+ insertSoftTab: function (cm) {
+ var spaces = [],
+ ranges = cm.listSelections(),
+ tabSize = cm.options.tabSize;
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].from();
+ var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+ spaces.push(new Array(tabSize - (col % tabSize) + 1).join(" "));
+ }
+ cm.replaceSelections(spaces);
+ },
+ defaultTab: function (cm) {
+ if (cm.somethingSelected()) cm.indentSelection("add");
+ else cm.execCommand("insertTab");
+ },
+ transposeChars: function (cm) {
+ runInOp(cm, function () {
+ var ranges = cm.listSelections(),
+ newSel = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var cur = ranges[i].head,
+ line = getLine(cm.doc, cur.line).text;
+ if (line) {
+ if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
+ if (cur.ch > 0) {
+ cur = new Pos(cur.line, cur.ch + 1);
+ cm.replaceRange(
+ line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+ Pos(cur.line, cur.ch - 2),
+ cur,
+ "+transpose"
+ );
+ } else if (cur.line > cm.doc.first) {
+ var prev = getLine(cm.doc, cur.line - 1).text;
+ if (prev)
+ cm.replaceRange(
+ line.charAt(0) +
+ cm.doc.lineSeparator() +
+ prev.charAt(prev.length - 1),
+ Pos(cur.line - 1, prev.length - 1),
+ Pos(cur.line, 1),
+ "+transpose"
+ );
+ }
+ }
+ newSel.push(new Range(cur, cur));
+ }
+ cm.setSelections(newSel);
+ });
+ },
+ newlineAndIndent: function (cm) {
+ runInOp(cm, function () {
+ var len = cm.listSelections().length;
+ for (var i = 0; i < len; i++) {
+ var range = cm.listSelections()[i];
+ cm.replaceRange(
+ cm.doc.lineSeparator(),
+ range.anchor,
+ range.head,
+ "+input"
+ );
+ cm.indentLine(range.from().line + 1, null, true);
+ ensureCursorVisible(cm);
+ }
+ });
+ },
+ toggleOverwrite: function (cm) {
+ cm.toggleOverwrite();
+ },
+ });
+
+ // STANDARD KEYMAPS
+
+ var keyMap = (CodeMirror.keyMap = {});
+
+ keyMap.basic = {
+ Left: "goCharLeft",
+ Right: "goCharRight",
+ Up: "goLineUp",
+ Down: "goLineDown",
+ End: "goLineEnd",
+ Home: "goLineStartSmart",
+ PageUp: "goPageUp",
+ PageDown: "goPageDown",
+ Delete: "delCharAfter",
+ Backspace: "delCharBefore",
+ "Shift-Backspace": "delCharBefore",
+ Tab: "defaultTab",
+ "Shift-Tab": "indentAuto",
+ Enter: "newlineAndIndent",
+ Insert: "toggleOverwrite",
+ Esc: "singleSelection",
+ };
+ // Note that the save and find-related commands aren't defined by
+ // default. User code or addons can define them. Unknown commands
+ // are simply ignored.
+ keyMap.pcDefault = {
+ "Ctrl-A": "selectAll",
+ "Ctrl-D": "deleteLine",
+ "Ctrl-Z": "undo",
+ "Shift-Ctrl-Z": "redo",
+ "Ctrl-Y": "redo",
+ "Ctrl-Home": "goDocStart",
+ "Ctrl-End": "goDocEnd",
+ "Ctrl-Up": "goLineUp",
+ "Ctrl-Down": "goLineDown",
+ "Ctrl-Left": "goGroupLeft",
+ "Ctrl-Right": "goGroupRight",
+ "Alt-Left": "goLineStart",
+ "Alt-Right": "goLineEnd",
+ "Ctrl-Backspace": "delGroupBefore",
+ "Ctrl-Delete": "delGroupAfter",
+ "Ctrl-S": "save",
+ "Ctrl-F": "find",
+ "Ctrl-G": "findNext",
+ "Shift-Ctrl-G": "findPrev",
+ "Shift-Ctrl-F": "replace",
+ "Shift-Ctrl-R": "replaceAll",
+ "Ctrl-[": "indentLess",
+ "Ctrl-]": "indentMore",
+ "Ctrl-U": "undoSelection",
+ "Shift-Ctrl-U": "redoSelection",
+ "Alt-U": "redoSelection",
+ fallthrough: "basic",
+ };
+ // Very basic readline/emacs-style bindings, which are standard on Mac.
+ keyMap.emacsy = {
+ "Ctrl-F": "goCharRight",
+ "Ctrl-B": "goCharLeft",
+ "Ctrl-P": "goLineUp",
+ "Ctrl-N": "goLineDown",
+ "Alt-F": "goWordRight",
+ "Alt-B": "goWordLeft",
+ "Ctrl-A": "goLineStart",
+ "Ctrl-E": "goLineEnd",
+ "Ctrl-V": "goPageDown",
+ "Shift-Ctrl-V": "goPageUp",
+ "Ctrl-D": "delCharAfter",
+ "Ctrl-H": "delCharBefore",
+ "Alt-D": "delWordAfter",
+ "Alt-Backspace": "delWordBefore",
+ "Ctrl-K": "killLine",
+ "Ctrl-T": "transposeChars",
+ };
+ keyMap.macDefault = {
+ "Cmd-A": "selectAll",
+ "Cmd-D": "deleteLine",
+ "Cmd-Z": "undo",
+ "Shift-Cmd-Z": "redo",
+ "Cmd-Y": "redo",
+ "Cmd-Home": "goDocStart",
+ "Cmd-Up": "goDocStart",
+ "Cmd-End": "goDocEnd",
+ "Cmd-Down": "goDocEnd",
+ "Alt-Left": "goGroupLeft",
+ "Alt-Right": "goGroupRight",
+ "Cmd-Left": "goLineLeft",
+ "Cmd-Right": "goLineRight",
+ "Alt-Backspace": "delGroupBefore",
+ "Ctrl-Alt-Backspace": "delGroupAfter",
+ "Alt-Delete": "delGroupAfter",
+ "Cmd-S": "save",
+ "Cmd-F": "find",
+ "Cmd-G": "findNext",
+ "Shift-Cmd-G": "findPrev",
+ "Cmd-Alt-F": "replace",
+ "Shift-Cmd-Alt-F": "replaceAll",
+ "Cmd-[": "indentLess",
+ "Cmd-]": "indentMore",
+ "Cmd-Backspace": "delWrappedLineLeft",
+ "Cmd-Delete": "delWrappedLineRight",
+ "Cmd-U": "undoSelection",
+ "Shift-Cmd-U": "redoSelection",
+ "Ctrl-Up": "goDocStart",
+ "Ctrl-Down": "goDocEnd",
+ fallthrough: ["basic", "emacsy"],
+ };
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+ // KEYMAP DISPATCH
+
+ function normalizeKeyName(name) {
+ var parts = name.split(/-(?!$)/),
+ name = parts[parts.length - 1];
+ var alt, ctrl, shift, cmd;
+ for (var i = 0; i < parts.length - 1; i++) {
+ var mod = parts[i];
+ if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
+ else if (/^a(lt)?$/i.test(mod)) alt = true;
+ else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
+ else if (/^s(hift)$/i.test(mod)) shift = true;
+ else throw new Error("Unrecognized modifier name: " + mod);
+ }
+ if (alt) name = "Alt-" + name;
+ if (ctrl) name = "Ctrl-" + name;
+ if (cmd) name = "Cmd-" + name;
+ if (shift) name = "Shift-" + name;
+ return name;
+ }
+
+ // This is a kludge to keep keymaps mostly working as raw objects
+ // (backwards compatibility) while at the same time support features
+ // like normalization and multi-stroke key bindings. It compiles a
+ // new normalized keymap, and then updates the old object to reflect
+ // this.
+ CodeMirror.normalizeKeyMap = function (keymap) {
+ var copy = {};
+ for (var keyname in keymap)
+ if (keymap.hasOwnProperty(keyname)) {
+ var value = keymap[keyname];
+ if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
+ if (value == "...") {
+ delete keymap[keyname];
+ continue;
+ }
+
+ var keys = map(keyname.split(" "), normalizeKeyName);
+ for (var i = 0; i < keys.length; i++) {
+ var val, name;
+ if (i == keys.length - 1) {
+ name = keys.join(" ");
+ val = value;
+ } else {
+ name = keys.slice(0, i + 1).join(" ");
+ val = "...";
+ }
+ var prev = copy[name];
+ if (!prev) copy[name] = val;
+ else if (prev != val)
+ throw new Error("Inconsistent bindings for " + name);
+ }
+ delete keymap[keyname];
+ }
+ for (var prop in copy) keymap[prop] = copy[prop];
+ return keymap;
+ };
+
+ var lookupKey = (CodeMirror.lookupKey = function (key, map, handle, context) {
+ map = getKeyMap(map);
+ var found = map.call ? map.call(key, context) : map[key];
+ if (found === false) return "nothing";
+ if (found === "...") return "multi";
+ if (found != null && handle(found)) return "handled";
+
+ if (map.fallthrough) {
+ if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+ return lookupKey(key, map.fallthrough, handle, context);
+ for (var i = 0; i < map.fallthrough.length; i++) {
+ var result = lookupKey(key, map.fallthrough[i], handle, context);
+ if (result) return result;
+ }
+ }
+ });
+
+ // Modifier key presses don't count as 'real' key presses for the
+ // purpose of keymap fallthrough.
+ var isModifierKey = (CodeMirror.isModifierKey = function (value) {
+ var name = typeof value == "string" ? value : keyNames[value.keyCode];
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+ });
+
+ // Look up the name of a key as indicated by an event object.
+ var keyName = (CodeMirror.keyName = function (event, noShift) {
+ if (presto && event.keyCode == 34 && event["char"]) return false;
+ var base = keyNames[event.keyCode],
+ name = base;
+ if (name == null || event.altGraphKey) return false;
+ if (event.altKey && base != "Alt") name = "Alt-" + name;
+ if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl")
+ name = "Ctrl-" + name;
+ if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd")
+ name = "Cmd-" + name;
+ if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
+ return name;
+ });
+
+ function getKeyMap(val) {
+ return typeof val == "string" ? keyMap[val] : val;
+ }
+
+ // FROMTEXTAREA
+
+ CodeMirror.fromTextArea = function (textarea, options) {
+ options = options ? copyObj(options) : {};
+ options.value = textarea.value;
+ if (!options.tabindex && textarea.tabIndex)
+ options.tabindex = textarea.tabIndex;
+ if (!options.placeholder && textarea.placeholder)
+ options.placeholder = textarea.placeholder;
+ // Set autofocus to true if this textarea is focused, or if it has
+ // autofocus and no other element is focused.
+ if (options.autofocus == null) {
+ var hasFocus = activeElt();
+ options.autofocus =
+ hasFocus == textarea ||
+ (textarea.getAttribute("autofocus") != null &&
+ hasFocus == document.body);
+ }
+
+ function save() {
+ textarea.value = cm.getValue();
+ }
+ if (textarea.form) {
+ on(textarea.form, "submit", save);
+ // Deplorable hack to make the submit method do the right thing.
+ if (!options.leaveSubmitMethodAlone) {
+ var form = textarea.form,
+ realSubmit = form.submit;
+ try {
+ var wrappedSubmit = (form.submit = function () {
+ save();
+ form.submit = realSubmit;
+ form.submit();
+ form.submit = wrappedSubmit;
+ });
+ } catch (e) {}
+ }
+ }
+
+ options.finishInit = function (cm) {
+ cm.save = save;
+ cm.getTextArea = function () {
+ return textarea;
+ };
+ cm.toTextArea = function () {
+ cm.toTextArea = isNaN; // Prevent this from being ran twice
+ save();
+ textarea.parentNode.removeChild(cm.getWrapperElement());
+ textarea.style.display = "";
+ if (textarea.form) {
+ off(textarea.form, "submit", save);
+ if (typeof textarea.form.submit == "function")
+ textarea.form.submit = realSubmit;
+ }
+ };
+ };
+
+ textarea.style.display = "none";
+ var cm = CodeMirror(function (node) {
+ textarea.parentNode.insertBefore(node, textarea.nextSibling);
+ }, options);
+ return cm;
+ };
+
+ // STRING STREAM
+
+ // Fed to the mode parsers, provides helper functions to make
+ // parsers more succinct.
+
+ var StringStream = (CodeMirror.StringStream = function (string, tabSize) {
+ this.pos = this.start = 0;
+ this.string = string;
+ this.tabSize = tabSize || 8;
+ this.lastColumnPos = this.lastColumnValue = 0;
+ this.lineStart = 0;
+ });
+
+ StringStream.prototype = {
+ eol: function () {
+ return this.pos >= this.string.length;
+ },
+ sol: function () {
+ return this.pos == this.lineStart;
+ },
+ peek: function () {
+ return this.string.charAt(this.pos) || undefined;
+ },
+ next: function () {
+ if (this.pos < this.string.length) return this.string.charAt(this.pos++);
+ },
+ eat: function (match) {
+ var ch = this.string.charAt(this.pos);
+ if (typeof match == "string") var ok = ch == match;
+ else var ok = ch && (match.test ? match.test(ch) : match(ch));
+ if (ok) {
+ ++this.pos;
+ return ch;
+ }
+ },
+ eatWhile: function (match) {
+ var start = this.pos;
+ while (this.eat(match)) {}
+ return this.pos > start;
+ },
+ eatSpace: function () {
+ var start = this.pos;
+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
+ return this.pos > start;
+ },
+ skipToEnd: function () {
+ this.pos = this.string.length;
+ },
+ skipTo: function (ch) {
+ var found = this.string.indexOf(ch, this.pos);
+ if (found > -1) {
+ this.pos = found;
+ return true;
+ }
+ },
+ backUp: function (n) {
+ this.pos -= n;
+ },
+ column: function () {
+ if (this.lastColumnPos < this.start) {
+ this.lastColumnValue = countColumn(
+ this.string,
+ this.start,
+ this.tabSize,
+ this.lastColumnPos,
+ this.lastColumnValue
+ );
+ this.lastColumnPos = this.start;
+ }
+ return (
+ this.lastColumnValue -
+ (this.lineStart
+ ? countColumn(this.string, this.lineStart, this.tabSize)
+ : 0)
+ );
+ },
+ indentation: function () {
+ return (
+ countColumn(this.string, null, this.tabSize) -
+ (this.lineStart
+ ? countColumn(this.string, this.lineStart, this.tabSize)
+ : 0)
+ );
+ },
+ match: function (pattern, consume, caseInsensitive) {
+ if (typeof pattern == "string") {
+ var cased = function (str) {
+ return caseInsensitive ? str.toLowerCase() : str;
+ };
+ var substr = this.string.substr(this.pos, pattern.length);
+ if (cased(substr) == cased(pattern)) {
+ if (consume !== false) this.pos += pattern.length;
+ return true;
+ }
+ } else {
+ var match = this.string.slice(this.pos).match(pattern);
+ if (match && match.index > 0) return null;
+ if (match && consume !== false) this.pos += match[0].length;
+ return match;
+ }
+ },
+ current: function () {
+ return this.string.slice(this.start, this.pos);
+ },
+ hideFirstChars: function (n, inner) {
+ this.lineStart += n;
+ try {
+ return inner();
+ } finally {
+ this.lineStart -= n;
+ }
+ },
+ };
+
+ // TEXTMARKERS
+
+ // Created with markText and setBookmark methods. A TextMarker is a
+ // handle that can be used to clear or find a marked position in the
+ // document. Line objects hold arrays (markedSpans) containing
+ // {from, to, marker} object pointing to such marker objects, and
+ // indicating that such a marker is present on that line. Multiple
+ // lines may point to the same marker when it spans across lines.
+ // The spans will have null for their from/to properties when the
+ // marker continues beyond the start/end of the line. Markers have
+ // links back to the lines they currently touch.
+
+ var nextMarkerId = 0;
+
+ var TextMarker = (CodeMirror.TextMarker = function (doc, type) {
+ this.lines = [];
+ this.type = type;
+ this.doc = doc;
+ this.id = ++nextMarkerId;
+ });
+ eventMixin(TextMarker);
+
+ // Clear the marker.
+ TextMarker.prototype.clear = function () {
+ if (this.explicitlyCleared) return;
+ var cm = this.doc.cm,
+ withOp = cm && !cm.curOp;
+ if (withOp) startOperation(cm);
+ if (hasHandler(this, "clear")) {
+ var found = this.find();
+ if (found) signalLater(this, "clear", found.from, found.to);
+ }
+ var min = null,
+ max = null;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
+ else if (cm) {
+ if (span.to != null) max = lineNo(line);
+ if (span.from != null) min = lineNo(line);
+ }
+ line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+ if (
+ span.from == null &&
+ this.collapsed &&
+ !lineIsHidden(this.doc, line) &&
+ cm
+ )
+ updateLineHeight(line, textHeight(cm.display));
+ }
+ if (cm && this.collapsed && !cm.options.lineWrapping)
+ for (var i = 0; i < this.lines.length; ++i) {
+ var visual = visualLine(this.lines[i]),
+ len = lineLength(visual);
+ if (len > cm.display.maxLineLength) {
+ cm.display.maxLine = visual;
+ cm.display.maxLineLength = len;
+ cm.display.maxLineChanged = true;
+ }
+ }
+
+ if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
+ this.lines.length = 0;
+ this.explicitlyCleared = true;
+ if (this.atomic && this.doc.cantEdit) {
+ this.doc.cantEdit = false;
+ if (cm) reCheckSelection(cm.doc);
+ }
+ if (cm) signalLater(cm, "markerCleared", cm, this);
+ if (withOp) endOperation(cm);
+ if (this.parent) this.parent.clear();
+ };
+
+ // Find the position of the marker in the document. Returns a {from,
+ // to} object by default. Side can be passed to get a specific side
+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+ // Pos objects returned contain a line object, rather than a line
+ // number (used to prevent looking up the same line twice).
+ TextMarker.prototype.find = function (side, lineObj) {
+ if (side == null && this.type == "bookmark") side = 1;
+ var from, to;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (span.from != null) {
+ from = Pos(lineObj ? line : lineNo(line), span.from);
+ if (side == -1) return from;
+ }
+ if (span.to != null) {
+ to = Pos(lineObj ? line : lineNo(line), span.to);
+ if (side == 1) return to;
+ }
+ }
+ return from && { from: from, to: to };
+ };
+
+ // Signals that the marker's widget changed, and surrounding layout
+ // should be recomputed.
+ TextMarker.prototype.changed = function () {
+ var pos = this.find(-1, true),
+ widget = this,
+ cm = this.doc.cm;
+ if (!pos || !cm) return;
+ runInOp(cm, function () {
+ var line = pos.line,
+ lineN = lineNo(pos.line);
+ var view = findViewForLine(cm, lineN);
+ if (view) {
+ clearLineMeasurementCacheFor(view);
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+ }
+ cm.curOp.updateMaxLine = true;
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+ var oldHeight = widget.height;
+ widget.height = null;
+ var dHeight = widgetHeight(widget) - oldHeight;
+ if (dHeight) updateLineHeight(line, line.height + dHeight);
+ }
+ });
+ };
+
+ TextMarker.prototype.attachLine = function (line) {
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
+ }
+ this.lines.push(line);
+ };
+ TextMarker.prototype.detachLine = function (line) {
+ this.lines.splice(indexOf(this.lines, line), 1);
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+ }
+ };
+
+ // Collapsed markers have unique ids, in order to be able to order
+ // them, which is needed for uniquely determining an outer marker
+ // when they overlap (they may nest, but not partially overlap).
+ var nextMarkerId = 0;
+
+ // Create a marker, wire it up to the right lines, and
+ function markText(doc, from, to, options, type) {
+ // Shared markers (across linked documents) are handled separately
+ // (markTextShared will call out to this again, once per
+ // document).
+ if (options && options.shared)
+ return markTextShared(doc, from, to, options, type);
+ // Ensure we are in an operation.
+ if (doc.cm && !doc.cm.curOp)
+ return operation(doc.cm, markText)(doc, from, to, options, type);
+
+ var marker = new TextMarker(doc, type),
+ diff = cmp(from, to);
+ if (options) copyObj(options, marker, false);
+ // Don't connect empty markers unless clearWhenEmpty is false
+ if (diff > 0 || (diff == 0 && marker.clearWhenEmpty !== false))
+ return marker;
+ if (marker.replacedWith) {
+ // Showing up as a widget implies collapsed (widget replaces text)
+ marker.collapsed = true;
+ marker.widgetNode = elt(
+ "span",
+ [marker.replacedWith],
+ "CodeMirror-widget"
+ );
+ if (!options.handleMouseEvents)
+ marker.widgetNode.setAttribute("cm-ignore-events", "true");
+ if (options.insertLeft) marker.widgetNode.insertLeft = true;
+ }
+ if (marker.collapsed) {
+ if (
+ conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+ (from.line != to.line &&
+ conflictingCollapsedRange(doc, to.line, from, to, marker))
+ )
+ throw new Error(
+ "Inserting collapsed marker partially overlapping an existing one"
+ );
+ sawCollapsedSpans = true;
+ }
+
+ if (marker.addToHistory)
+ addChangeToHistory(
+ doc,
+ { from: from, to: to, origin: "markText" },
+ doc.sel,
+ NaN
+ );
+
+ var curLine = from.line,
+ cm = doc.cm,
+ updateMaxLine;
+ doc.iter(curLine, to.line + 1, function (line) {
+ if (
+ cm &&
+ marker.collapsed &&
+ !cm.options.lineWrapping &&
+ visualLine(line) == cm.display.maxLine
+ )
+ updateMaxLine = true;
+ if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
+ addMarkedSpan(
+ line,
+ new MarkedSpan(
+ marker,
+ curLine == from.line ? from.ch : null,
+ curLine == to.line ? to.ch : null
+ )
+ );
+ ++curLine;
+ });
+ // lineIsHidden depends on the presence of the spans, so needs a second pass
+ if (marker.collapsed)
+ doc.iter(from.line, to.line + 1, function (line) {
+ if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
+ });
+
+ if (marker.clearOnEnter)
+ on(marker, "beforeCursorEnter", function () {
+ marker.clear();
+ });
+
+ if (marker.readOnly) {
+ sawReadOnlySpans = true;
+ if (doc.history.done.length || doc.history.undone.length)
+ doc.clearHistory();
+ }
+ if (marker.collapsed) {
+ marker.id = ++nextMarkerId;
+ marker.atomic = true;
+ }
+ if (cm) {
+ // Sync editor state
+ if (updateMaxLine) cm.curOp.updateMaxLine = true;
+ if (marker.collapsed) regChange(cm, from.line, to.line + 1);
+ else if (
+ marker.className ||
+ marker.title ||
+ marker.startStyle ||
+ marker.endStyle ||
+ marker.css
+ )
+ for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
+ if (marker.atomic) reCheckSelection(cm.doc);
+ signalLater(cm, "markerAdded", cm, marker);
+ }
+ return marker;
+ }
+
+ // SHARED TEXTMARKERS
+
+ // A shared marker spans multiple linked documents. It is
+ // implemented as a meta-marker-object controlling multiple normal
+ // markers.
+ var SharedTextMarker = (CodeMirror.SharedTextMarker = function (
+ markers,
+ primary
+ ) {
+ this.markers = markers;
+ this.primary = primary;
+ for (var i = 0; i < markers.length; ++i) markers[i].parent = this;
+ });
+ eventMixin(SharedTextMarker);
+
+ SharedTextMarker.prototype.clear = function () {
+ if (this.explicitlyCleared) return;
+ this.explicitlyCleared = true;
+ for (var i = 0; i < this.markers.length; ++i) this.markers[i].clear();
+ signalLater(this, "clear");
+ };
+ SharedTextMarker.prototype.find = function (side, lineObj) {
+ return this.primary.find(side, lineObj);
+ };
+
+ function markTextShared(doc, from, to, options, type) {
+ options = copyObj(options);
+ options.shared = false;
+ var markers = [markText(doc, from, to, options, type)],
+ primary = markers[0];
+ var widget = options.widgetNode;
+ linkedDocs(doc, function (doc) {
+ if (widget) options.widgetNode = widget.cloneNode(true);
+ markers.push(
+ markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)
+ );
+ for (var i = 0; i < doc.linked.length; ++i)
+ if (doc.linked[i].isParent) return;
+ primary = lst(markers);
+ });
+ return new SharedTextMarker(markers, primary);
+ }
+
+ function findSharedMarkers(doc) {
+ return doc.findMarks(
+ Pos(doc.first, 0),
+ doc.clipPos(Pos(doc.lastLine())),
+ function (m) {
+ return m.parent;
+ }
+ );
+ }
+
+ function copySharedMarkers(doc, markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i],
+ pos = marker.find();
+ var mFrom = doc.clipPos(pos.from),
+ mTo = doc.clipPos(pos.to);
+ if (cmp(mFrom, mTo)) {
+ var subMark = markText(
+ doc,
+ mFrom,
+ mTo,
+ marker.primary,
+ marker.primary.type
+ );
+ marker.markers.push(subMark);
+ subMark.parent = marker;
+ }
+ }
+ }
+
+ function detachSharedMarkers(markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i],
+ linked = [marker.primary.doc];
+ linkedDocs(marker.primary.doc, function (d) {
+ linked.push(d);
+ });
+ for (var j = 0; j < marker.markers.length; j++) {
+ var subMarker = marker.markers[j];
+ if (indexOf(linked, subMarker.doc) == -1) {
+ subMarker.parent = null;
+ marker.markers.splice(j--, 1);
+ }
+ }
+ }
+ }
+
+ // TEXTMARKER SPANS
+
+ function MarkedSpan(marker, from, to) {
+ this.marker = marker;
+ this.from = from;
+ this.to = to;
+ }
+
+ // Search an array of spans for a span matching the given marker.
+ function getMarkedSpanFor(spans, marker) {
+ if (spans)
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.marker == marker) return span;
+ }
+ }
+ // Remove a span from an array, returning undefined if no spans are
+ // left (we don't store arrays for lines without spans).
+ function removeMarkedSpan(spans, span) {
+ for (var r, i = 0; i < spans.length; ++i)
+ if (spans[i] != span) (r || (r = [])).push(spans[i]);
+ return r;
+ }
+ // Add a span to a line.
+ function addMarkedSpan(line, span) {
+ line.markedSpans = line.markedSpans
+ ? line.markedSpans.concat([span])
+ : [span];
+ span.marker.attachLine(line);
+ }
+
+ // Used for the algorithm that adjusts markers for a change in the
+ // document. These functions cut an array of spans at a given
+ // character position, returning an array of remaining chunks (or
+ // undefined if nothing remains).
+ function markedSpansBefore(old, startCh, isInsert) {
+ if (old)
+ for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i],
+ marker = span.marker;
+ var startsBefore =
+ span.from == null ||
+ (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+ if (
+ startsBefore ||
+ (span.from == startCh &&
+ marker.type == "bookmark" &&
+ (!isInsert || !span.marker.insertLeft))
+ ) {
+ var endsAfter =
+ span.to == null ||
+ (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
+ (nw || (nw = [])).push(
+ new MarkedSpan(marker, span.from, endsAfter ? null : span.to)
+ );
+ }
+ }
+ return nw;
+ }
+ function markedSpansAfter(old, endCh, isInsert) {
+ if (old)
+ for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i],
+ marker = span.marker;
+ var endsAfter =
+ span.to == null ||
+ (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+ if (
+ endsAfter ||
+ (span.from == endCh &&
+ marker.type == "bookmark" &&
+ (!isInsert || span.marker.insertLeft))
+ ) {
+ var startsBefore =
+ span.from == null ||
+ (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
+ (nw || (nw = [])).push(
+ new MarkedSpan(
+ marker,
+ startsBefore ? null : span.from - endCh,
+ span.to == null ? null : span.to - endCh
+ )
+ );
+ }
+ }
+ return nw;
+ }
+
+ // Given a change object, compute the new set of marker spans that
+ // cover the line in which the change took place. Removes spans
+ // entirely within the change, reconnects spans belonging to the
+ // same marker that appear on both sides of the change, and cuts off
+ // spans partially within the change. Returns an array of span
+ // arrays with one element for each line in (after) the change.
+ function stretchSpansOverChange(doc, change) {
+ if (change.full) return null;
+ var oldFirst =
+ isLine(doc, change.from.line) &&
+ getLine(doc, change.from.line).markedSpans;
+ var oldLast =
+ isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+ if (!oldFirst && !oldLast) return null;
+
+ var startCh = change.from.ch,
+ endCh = change.to.ch,
+ isInsert = cmp(change.from, change.to) == 0;
+ // Get the spans that 'stick out' on both sides
+ var first = markedSpansBefore(oldFirst, startCh, isInsert);
+ var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+ // Next, merge those two ends
+ var sameLine = change.text.length == 1,
+ offset = lst(change.text).length + (sameLine ? startCh : 0);
+ if (first) {
+ // Fix up .to properties of first
+ for (var i = 0; i < first.length; ++i) {
+ var span = first[i];
+ if (span.to == null) {
+ var found = getMarkedSpanFor(last, span.marker);
+ if (!found) span.to = startCh;
+ else if (sameLine)
+ span.to = found.to == null ? null : found.to + offset;
+ }
+ }
+ }
+ if (last) {
+ // Fix up .from in last (or move them into first in case of sameLine)
+ for (var i = 0; i < last.length; ++i) {
+ var span = last[i];
+ if (span.to != null) span.to += offset;
+ if (span.from == null) {
+ var found = getMarkedSpanFor(first, span.marker);
+ if (!found) {
+ span.from = offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ } else {
+ span.from += offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ }
+ }
+ // Make sure we didn't create any zero-length spans
+ if (first) first = clearEmptySpans(first);
+ if (last && last != first) last = clearEmptySpans(last);
+
+ var newMarkers = [first];
+ if (!sameLine) {
+ // Fill gap with whole-line-spans
+ var gap = change.text.length - 2,
+ gapMarkers;
+ if (gap > 0 && first)
+ for (var i = 0; i < first.length; ++i)
+ if (first[i].to == null)
+ (gapMarkers || (gapMarkers = [])).push(
+ new MarkedSpan(first[i].marker, null, null)
+ );
+ for (var i = 0; i < gap; ++i) newMarkers.push(gapMarkers);
+ newMarkers.push(last);
+ }
+ return newMarkers;
+ }
+
+ // Remove spans that are empty and don't have a clearWhenEmpty
+ // option of false.
+ function clearEmptySpans(spans) {
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (
+ span.from != null &&
+ span.from == span.to &&
+ span.marker.clearWhenEmpty !== false
+ )
+ spans.splice(i--, 1);
+ }
+ if (!spans.length) return null;
+ return spans;
+ }
+
+ // Used for un/re-doing changes from the history. Combines the
+ // result of computing the existing spans with the set of spans that
+ // existed in the history (so that deleting around a span and then
+ // undoing brings back the span).
+ function mergeOldSpans(doc, change) {
+ var old = getOldSpans(doc, change);
+ var stretched = stretchSpansOverChange(doc, change);
+ if (!old) return stretched;
+ if (!stretched) return old;
+
+ for (var i = 0; i < old.length; ++i) {
+ var oldCur = old[i],
+ stretchCur = stretched[i];
+ if (oldCur && stretchCur) {
+ spans: for (var j = 0; j < stretchCur.length; ++j) {
+ var span = stretchCur[j];
+ for (var k = 0; k < oldCur.length; ++k)
+ if (oldCur[k].marker == span.marker) continue spans;
+ oldCur.push(span);
+ }
+ } else if (stretchCur) {
+ old[i] = stretchCur;
+ }
+ }
+ return old;
+ }
+
+ // Used to 'clip' out readOnly ranges when making a change.
+ function removeReadOnlyRanges(doc, from, to) {
+ var markers = null;
+ doc.iter(from.line, to.line + 1, function (line) {
+ if (line.markedSpans)
+ for (var i = 0; i < line.markedSpans.length; ++i) {
+ var mark = line.markedSpans[i].marker;
+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+ (markers || (markers = [])).push(mark);
+ }
+ });
+ if (!markers) return null;
+ var parts = [{ from: from, to: to }];
+ for (var i = 0; i < markers.length; ++i) {
+ var mk = markers[i],
+ m = mk.find(0);
+ for (var j = 0; j < parts.length; ++j) {
+ var p = parts[j];
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
+ var newParts = [j, 1],
+ dfrom = cmp(p.from, m.from),
+ dto = cmp(p.to, m.to);
+ if (dfrom < 0 || (!mk.inclusiveLeft && !dfrom))
+ newParts.push({ from: p.from, to: m.from });
+ if (dto > 0 || (!mk.inclusiveRight && !dto))
+ newParts.push({ from: m.to, to: p.to });
+ parts.splice.apply(parts, newParts);
+ j += newParts.length - 1;
+ }
+ }
+ return parts;
+ }
+
+ // Connect or disconnect spans from a line.
+ function detachMarkedSpans(line) {
+ var spans = line.markedSpans;
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i) spans[i].marker.detachLine(line);
+ line.markedSpans = null;
+ }
+ function attachMarkedSpans(line, spans) {
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i) spans[i].marker.attachLine(line);
+ line.markedSpans = spans;
+ }
+
+ // Helpers used when computing which overlapping collapsed span
+ // counts as the larger one.
+ function extraLeft(marker) {
+ return marker.inclusiveLeft ? -1 : 0;
+ }
+ function extraRight(marker) {
+ return marker.inclusiveRight ? 1 : 0;
+ }
+
+ // Returns a number indicating which of two overlapping collapsed
+ // spans is larger (and thus includes the other). Falls back to
+ // comparing ids when the spans cover exactly the same range.
+ function compareCollapsedMarkers(a, b) {
+ var lenDiff = a.lines.length - b.lines.length;
+ if (lenDiff != 0) return lenDiff;
+ var aPos = a.find(),
+ bPos = b.find();
+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+ if (fromCmp) return -fromCmp;
+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+ if (toCmp) return toCmp;
+ return b.id - a.id;
+ }
+
+ // Find out whether a line ends or starts in a collapsed span. If
+ // so, return the marker for that span.
+ function collapsedSpanAtSide(line, start) {
+ var sps = sawCollapsedSpans && line.markedSpans,
+ found;
+ if (sps)
+ for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (
+ sp.marker.collapsed &&
+ (start ? sp.from : sp.to) == null &&
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0)
+ )
+ found = sp.marker;
+ }
+ return found;
+ }
+ function collapsedSpanAtStart(line) {
+ return collapsedSpanAtSide(line, true);
+ }
+ function collapsedSpanAtEnd(line) {
+ return collapsedSpanAtSide(line, false);
+ }
+
+ // Test whether there exists a collapsed span that partially
+ // overlaps (covers the start or end, but not both) of a new span.
+ // Such overlap is not allowed.
+ function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+ var line = getLine(doc, lineNo);
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps)
+ for (var i = 0; i < sps.length; ++i) {
+ var sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ var found = sp.marker.find(0);
+ var fromCmp =
+ cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+ var toCmp =
+ cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+ if ((fromCmp >= 0 && toCmp <= 0) || (fromCmp <= 0 && toCmp >= 0))
+ continue;
+ if (
+ (fromCmp <= 0 &&
+ (cmp(found.to, from) > 0 ||
+ (sp.marker.inclusiveRight && marker.inclusiveLeft))) ||
+ (fromCmp >= 0 &&
+ (cmp(found.from, to) < 0 ||
+ (sp.marker.inclusiveLeft && marker.inclusiveRight)))
+ )
+ return true;
+ }
+ }
+
+ // A visual line is a line as drawn on the screen. Folding, for
+ // example, can cause multiple logical lines to appear on the same
+ // visual line. This finds the start of the visual line that the
+ // given line is part of (usually that is the line itself).
+ function visualLine(line) {
+ var merged;
+ while ((merged = collapsedSpanAtStart(line)))
+ line = merged.find(-1, true).line;
+ return line;
+ }
+
+ // Returns an array of logical lines that continue the visual line
+ // started by the argument, or undefined if there are no such lines.
+ function visualLineContinued(line) {
+ var merged, lines;
+ while ((merged = collapsedSpanAtEnd(line))) {
+ line = merged.find(1, true).line;
+ (lines || (lines = [])).push(line);
+ }
+ return lines;
+ }
+
+ // Get the line number of the start of the visual line that the
+ // given line number is part of.
+ function visualLineNo(doc, lineN) {
+ var line = getLine(doc, lineN),
+ vis = visualLine(line);
+ if (line == vis) return lineN;
+ return lineNo(vis);
+ }
+ // Get the line number of the start of the next visual line after
+ // the given line.
+ function visualLineEndNo(doc, lineN) {
+ if (lineN > doc.lastLine()) return lineN;
+ var line = getLine(doc, lineN),
+ merged;
+ if (!lineIsHidden(doc, line)) return lineN;
+ while ((merged = collapsedSpanAtEnd(line)))
+ line = merged.find(1, true).line;
+ return lineNo(line) + 1;
+ }
+
+ // Compute whether a line is hidden. Lines count as hidden when they
+ // are part of a visual line that starts with another line, or when
+ // they are entirely covered by collapsed, non-widget span.
+ function lineIsHidden(doc, line) {
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps)
+ for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ if (sp.from == null) return true;
+ if (sp.marker.widgetNode) continue;
+ if (
+ sp.from == 0 &&
+ sp.marker.inclusiveLeft &&
+ lineIsHiddenInner(doc, line, sp)
+ )
+ return true;
+ }
+ }
+ function lineIsHiddenInner(doc, line, span) {
+ if (span.to == null) {
+ var end = span.marker.find(1, true);
+ return lineIsHiddenInner(
+ doc,
+ end.line,
+ getMarkedSpanFor(end.line.markedSpans, span.marker)
+ );
+ }
+ if (span.marker.inclusiveRight && span.to == line.text.length) return true;
+ for (var sp, i = 0; i < line.markedSpans.length; ++i) {
+ sp = line.markedSpans[i];
+ if (
+ sp.marker.collapsed &&
+ !sp.marker.widgetNode &&
+ sp.from == span.to &&
+ (sp.to == null || sp.to != span.from) &&
+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+ lineIsHiddenInner(doc, line, sp)
+ )
+ return true;
+ }
+ }
+
+ // LINE WIDGETS
+
+ // Line widgets are block elements displayed above or below a line.
+
+ var LineWidget = (CodeMirror.LineWidget = function (doc, node, options) {
+ if (options)
+ for (var opt in options)
+ if (options.hasOwnProperty(opt)) this[opt] = options[opt];
+ this.doc = doc;
+ this.node = node;
+ });
+ eventMixin(LineWidget);
+
+ function adjustScrollWhenAboveVisible(cm, line, diff) {
+ if (
+ heightAtLine(line) <
+ ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)
+ )
+ addToScrollPos(cm, null, diff);
+ }
+
+ LineWidget.prototype.clear = function () {
+ var cm = this.doc.cm,
+ ws = this.line.widgets,
+ line = this.line,
+ no = lineNo(line);
+ if (no == null || !ws) return;
+ for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
+ if (!ws.length) line.widgets = null;
+ var height = widgetHeight(this);
+ updateLineHeight(line, Math.max(0, line.height - height));
+ if (cm)
+ runInOp(cm, function () {
+ adjustScrollWhenAboveVisible(cm, line, -height);
+ regLineChange(cm, no, "widget");
+ });
+ };
+ LineWidget.prototype.changed = function () {
+ var oldH = this.height,
+ cm = this.doc.cm,
+ line = this.line;
+ this.height = null;
+ var diff = widgetHeight(this) - oldH;
+ if (!diff) return;
+ updateLineHeight(line, line.height + diff);
+ if (cm)
+ runInOp(cm, function () {
+ cm.curOp.forceUpdate = true;
+ adjustScrollWhenAboveVisible(cm, line, diff);
+ });
+ };
+
+ function widgetHeight(widget) {
+ if (widget.height != null) return widget.height;
+ var cm = widget.doc.cm;
+ if (!cm) return 0;
+ if (!contains(document.body, widget.node)) {
+ var parentStyle = "position: relative;";
+ if (widget.coverGutter)
+ parentStyle +=
+ "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
+ if (widget.noHScroll)
+ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
+ removeChildrenAndAdd(
+ cm.display.measure,
+ elt("div", [widget.node], null, parentStyle)
+ );
+ }
+ return (widget.height = widget.node.offsetHeight);
+ }
+
+ function addLineWidget(doc, handle, node, options) {
+ var widget = new LineWidget(doc, node, options);
+ var cm = doc.cm;
+ if (cm && widget.noHScroll) cm.display.alignWidgets = true;
+ changeLine(doc, handle, "widget", function (line) {
+ var widgets = line.widgets || (line.widgets = []);
+ if (widget.insertAt == null) widgets.push(widget);
+ else
+ widgets.splice(
+ Math.min(widgets.length - 1, Math.max(0, widget.insertAt)),
+ 0,
+ widget
+ );
+ widget.line = line;
+ if (cm && !lineIsHidden(doc, line)) {
+ var aboveVisible = heightAtLine(line) < doc.scrollTop;
+ updateLineHeight(line, line.height + widgetHeight(widget));
+ if (aboveVisible) addToScrollPos(cm, null, widget.height);
+ cm.curOp.forceUpdate = true;
+ }
+ return true;
+ });
+ return widget;
+ }
+
+ // LINE DATA STRUCTURE
+
+ // Line objects. These hold state related to a line, including
+ // highlighting info (the styles array).
+ var Line = (CodeMirror.Line = function (text, markedSpans, estimateHeight) {
+ this.text = text;
+ attachMarkedSpans(this, markedSpans);
+ this.height = estimateHeight ? estimateHeight(this) : 1;
+ });
+ eventMixin(Line);
+ Line.prototype.lineNo = function () {
+ return lineNo(this);
+ };
+
+ // Change the content (text, markers) of a line. Automatically
+ // invalidates cached information and tries to re-estimate the
+ // line's height.
+ function updateLine(line, text, markedSpans, estimateHeight) {
+ line.text = text;
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ if (line.order != null) line.order = null;
+ detachMarkedSpans(line);
+ attachMarkedSpans(line, markedSpans);
+ var estHeight = estimateHeight ? estimateHeight(line) : 1;
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ }
+
+ // Detach a line from the document tree and its markers.
+ function cleanUpLine(line) {
+ line.parent = null;
+ detachMarkedSpans(line);
+ }
+
+ function extractLineClasses(type, output) {
+ if (type)
+ for (;;) {
+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+ if (!lineClass) break;
+ type =
+ type.slice(0, lineClass.index) +
+ type.slice(lineClass.index + lineClass[0].length);
+ var prop = lineClass[1] ? "bgClass" : "textClass";
+ if (output[prop] == null) output[prop] = lineClass[2];
+ else if (
+ !new RegExp("(?:^|s)" + lineClass[2] + "(?:$|s)").test(output[prop])
+ )
+ output[prop] += " " + lineClass[2];
+ }
+ return type;
+ }
+
+ function callBlankLine(mode, state) {
+ if (mode.blankLine) return mode.blankLine(state);
+ if (!mode.innerMode) return;
+ var inner = CodeMirror.innerMode(mode, state);
+ if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
+ }
+
+ function readToken(mode, stream, state, inner) {
+ for (var i = 0; i < 10; i++) {
+ if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
+ var style = mode.token(stream, state);
+ if (stream.pos > stream.start) return style;
+ }
+ throw new Error("Mode " + mode.name + " failed to advance stream.");
+ }
+
+ // Utility for getTokenAt and getLineTokens
+ function takeToken(cm, pos, precise, asArray) {
+ function getObj(copy) {
+ return {
+ start: stream.start,
+ end: stream.pos,
+ string: stream.current(),
+ type: style || null,
+ state: copy ? copyState(doc.mode, state) : state,
+ };
+ }
+
+ var doc = cm.doc,
+ mode = doc.mode,
+ style;
+ pos = clipPos(doc, pos);
+ var line = getLine(doc, pos.line),
+ state = getStateBefore(cm, pos.line, precise);
+ var stream = new StringStream(line.text, cm.options.tabSize),
+ tokens;
+ if (asArray) tokens = [];
+ while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+ stream.start = stream.pos;
+ style = readToken(mode, stream, state);
+ if (asArray) tokens.push(getObj(true));
+ }
+ return asArray ? tokens : getObj();
+ }
+
+ // Run the given mode's parser over a line, calling f for each token.
+ function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+ var flattenSpans = mode.flattenSpans;
+ if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
+ var curStart = 0,
+ curStyle = null;
+ var stream = new StringStream(text, cm.options.tabSize),
+ style;
+ var inner = cm.options.addModeClass && [null];
+ if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
+ while (!stream.eol()) {
+ if (stream.pos > cm.options.maxHighlightLength) {
+ flattenSpans = false;
+ if (forceToEnd) processLine(cm, text, state, stream.pos);
+ stream.pos = text.length;
+ style = null;
+ } else {
+ style = extractLineClasses(
+ readToken(mode, stream, state, inner),
+ lineClasses
+ );
+ }
+ if (inner) {
+ var mName = inner[0].name;
+ if (mName) style = "m-" + (style ? mName + " " + style : mName);
+ }
+ if (!flattenSpans || curStyle != style) {
+ while (curStart < stream.start) {
+ curStart = Math.min(stream.start, curStart + 50000);
+ f(curStart, curStyle);
+ }
+ curStyle = style;
+ }
+ stream.start = stream.pos;
+ }
+ while (curStart < stream.pos) {
+ // Webkit seems to refuse to render text nodes longer than 57444 characters
+ var pos = Math.min(stream.pos, curStart + 50000);
+ f(pos, curStyle);
+ curStart = pos;
+ }
+ }
+
+ // Compute a style array (an array starting with a mode generation
+ // -- for invalidation -- followed by pairs of end positions and
+ // style strings), which is used to highlight the tokens on the
+ // line.
+ function highlightLine(cm, line, state, forceToEnd) {
+ // A styles array always starts with a number identifying the
+ // mode/overlays that it is based on (for easy invalidation).
+ var st = [cm.state.modeGen],
+ lineClasses = {};
+ // Compute the base array of styles
+ runMode(
+ cm,
+ line.text,
+ cm.doc.mode,
+ state,
+ function (end, style) {
+ st.push(end, style);
+ },
+ lineClasses,
+ forceToEnd
+ );
+
+ // Run overlays, adjust style array.
+ for (var o = 0; o < cm.state.overlays.length; ++o) {
+ var overlay = cm.state.overlays[o],
+ i = 1,
+ at = 0;
+ runMode(
+ cm,
+ line.text,
+ overlay.mode,
+ true,
+ function (end, style) {
+ var start = i;
+ // Ensure there's a token end at the current position, and that i points at it
+ while (at < end) {
+ var i_end = st[i];
+ if (i_end > end) st.splice(i, 1, end, st[i + 1], i_end);
+ i += 2;
+ at = Math.min(end, i_end);
+ }
+ if (!style) return;
+ if (overlay.opaque) {
+ st.splice(start, i - start, end, "cm-overlay " + style);
+ i = start + 2;
+ } else {
+ for (; start < i; start += 2) {
+ var cur = st[start + 1];
+ st[start + 1] = (cur ? cur + " " : "") + "cm-overlay " + style;
+ }
+ }
+ },
+ lineClasses
+ );
+ }
+
+ return {
+ styles: st,
+ classes:
+ lineClasses.bgClass || lineClasses.textClass ? lineClasses : null,
+ };
+ }
+
+ function getLineStyles(cm, line, updateFrontier) {
+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
+ var state = getStateBefore(cm, lineNo(line));
+ var result = highlightLine(
+ cm,
+ line,
+ line.text.length > cm.options.maxHighlightLength
+ ? copyState(cm.doc.mode, state)
+ : state
+ );
+ line.stateAfter = state;
+ line.styles = result.styles;
+ if (result.classes) line.styleClasses = result.classes;
+ else if (line.styleClasses) line.styleClasses = null;
+ if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
+ }
+ return line.styles;
+ }
+
+ // Lightweight form of highlight -- proceed over this line and
+ // update state, but don't save a style array. Used for lines that
+ // aren't currently visible.
+ function processLine(cm, text, state, startAt) {
+ var mode = cm.doc.mode;
+ var stream = new StringStream(text, cm.options.tabSize);
+ stream.start = stream.pos = startAt || 0;
+ if (text == "") callBlankLine(mode, state);
+ while (!stream.eol()) {
+ readToken(mode, stream, state);
+ stream.start = stream.pos;
+ }
+ }
+
+ // Convert a style as returned by a mode (either null, or a string
+ // containing one or more styles) to a CSS style. This is cached,
+ // and also looks for line-wide styles.
+ var styleToClassCache = {},
+ styleToClassCacheWithMode = {};
+ function interpretTokenStyle(style, options) {
+ if (!style || /^\s*$/.test(style)) return null;
+ var cache = options.addModeClass
+ ? styleToClassCacheWithMode
+ : styleToClassCache;
+ return cache[style] || (cache[style] = style.replace(/\S+/g, "cm-$&"));
+ }
+
+ // Render the DOM representation of the text of a line. Also builds
+ // up a 'line map', which points at the DOM nodes that represent
+ // specific stretches of text, and is used by the measuring code.
+ // The returned object contains the DOM node, this map, and
+ // information about line-wide styles that were set by the mode.
+ function buildLineContent(cm, lineView) {
+ // The padding-right forces the element to have a 'border', which
+ // is needed on Webkit to be able to get line-level bounding
+ // rectangles for it (in measureChar).
+ var content = elt(
+ "span",
+ null,
+ null,
+ webkit ? "padding-right: .1px" : null
+ );
+ var builder = {
+ pre: elt("pre", [content], "CodeMirror-line"),
+ content: content,
+ col: 0,
+ pos: 0,
+ cm: cm,
+ splitSpaces: (ie || webkit) && cm.getOption("lineWrapping"),
+ };
+ lineView.measure = {};
+
+ // Iterate over the logical lines that make up this visual line.
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+ var line = i ? lineView.rest[i - 1] : lineView.line,
+ order;
+ builder.pos = 0;
+ builder.addToken = buildToken;
+ // Optionally wire in some hacks into the token-rendering
+ // algorithm, to deal with browser quirks.
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
+ builder.addToken = buildTokenBadBidi(builder.addToken, order);
+ builder.map = [];
+ var allowFrontierUpdate =
+ lineView != cm.display.externalMeasured && lineNo(line);
+ insertLineContent(
+ line,
+ builder,
+ getLineStyles(cm, line, allowFrontierUpdate)
+ );
+ if (line.styleClasses) {
+ if (line.styleClasses.bgClass)
+ builder.bgClass = joinClasses(
+ line.styleClasses.bgClass,
+ builder.bgClass || ""
+ );
+ if (line.styleClasses.textClass)
+ builder.textClass = joinClasses(
+ line.styleClasses.textClass,
+ builder.textClass || ""
+ );
+ }
+
+ // Ensure at least a single node is present, for measuring.
+ if (builder.map.length == 0)
+ builder.map.push(
+ 0,
+ 0,
+ builder.content.appendChild(zeroWidthElement(cm.display.measure))
+ );
+
+ // Store the map and a cache object for the current logical line
+ if (i == 0) {
+ lineView.measure.map = builder.map;
+ lineView.measure.cache = {};
+ } else {
+ (lineView.measure.maps || (lineView.measure.maps = [])).push(
+ builder.map
+ );
+ (lineView.measure.caches || (lineView.measure.caches = [])).push({});
+ }
+ }
+
+ // See issue #2901
+ if (webkit && /\bcm-tab\b/.test(builder.content.lastChild.className))
+ builder.content.className = "cm-tab-wrap-hack";
+
+ signal(cm, "renderLine", cm, lineView.line, builder.pre);
+ if (builder.pre.className)
+ builder.textClass = joinClasses(
+ builder.pre.className,
+ builder.textClass || ""
+ );
+
+ return builder;
+ }
+
+ function defaultSpecialCharPlaceholder(ch) {
+ var token = elt("span", "\u2022", "cm-invalidchar");
+ token.title = "\\u" + ch.charCodeAt(0).toString(16);
+ token.setAttribute("aria-label", token.title);
+ return token;
+ }
+
+ // Build up the DOM representation for a single token, and add it to
+ // the line map. Takes care to render special characters separately.
+ function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+ if (!text) return;
+ var displayText = builder.splitSpaces
+ ? text.replace(/ {3,}/g, splitSpaces)
+ : text;
+ var special = builder.cm.state.specialChars,
+ mustWrap = false;
+ if (!special.test(text)) {
+ builder.col += text.length;
+ var content = document.createTextNode(displayText);
+ builder.map.push(builder.pos, builder.pos + text.length, content);
+ if (ie && ie_version < 9) mustWrap = true;
+ builder.pos += text.length;
+ } else {
+ var content = document.createDocumentFragment(),
+ pos = 0;
+ while (true) {
+ special.lastIndex = pos;
+ var m = special.exec(text);
+ var skipped = m ? m.index - pos : text.length - pos;
+ if (skipped) {
+ var txt = document.createTextNode(
+ displayText.slice(pos, pos + skipped)
+ );
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.map.push(builder.pos, builder.pos + skipped, txt);
+ builder.col += skipped;
+ builder.pos += skipped;
+ }
+ if (!m) break;
+ pos += skipped + 1;
+ if (m[0] == "\t") {
+ var tabSize = builder.cm.options.tabSize,
+ tabWidth = tabSize - (builder.col % tabSize);
+ var txt = content.appendChild(
+ elt("span", spaceStr(tabWidth), "cm-tab")
+ );
+ txt.setAttribute("role", "presentation");
+ txt.setAttribute("cm-text", "\t");
+ builder.col += tabWidth;
+ } else if (m[0] == "\r" || m[0] == "\n") {
+ var txt = content.appendChild(
+ elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")
+ );
+ txt.setAttribute("cm-text", m[0]);
+ builder.col += 1;
+ } else {
+ var txt = builder.cm.options.specialCharPlaceholder(m[0]);
+ txt.setAttribute("cm-text", m[0]);
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.col += 1;
+ }
+ builder.map.push(builder.pos, builder.pos + 1, txt);
+ builder.pos++;
+ }
+ }
+ if (style || startStyle || endStyle || mustWrap || css) {
+ var fullStyle = style || "";
+ if (startStyle) fullStyle += startStyle;
+ if (endStyle) fullStyle += endStyle;
+ var token = elt("span", [content], fullStyle, css);
+ if (title) token.title = title;
+ return builder.content.appendChild(token);
+ }
+ builder.content.appendChild(content);
+ }
+
+ function splitSpaces(old) {
+ var out = " ";
+ for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
+ out += " ";
+ return out;
+ }
+
+ // Work around nonsense dimensions being reported for stretches of
+ // right-to-left text.
+ function buildTokenBadBidi(inner, order) {
+ return function (builder, text, style, startStyle, endStyle, title, css) {
+ style = style ? style + " cm-force-border" : "cm-force-border";
+ var start = builder.pos,
+ end = start + text.length;
+ for (;;) {
+ // Find the part that overlaps with the start of this text
+ for (var i = 0; i < order.length; i++) {
+ var part = order[i];
+ if (part.to > start && part.from <= start) break;
+ }
+ if (part.to >= end)
+ return inner(builder, text, style, startStyle, endStyle, title, css);
+ inner(
+ builder,
+ text.slice(0, part.to - start),
+ style,
+ startStyle,
+ null,
+ title,
+ css
+ );
+ startStyle = null;
+ text = text.slice(part.to - start);
+ start = part.to;
+ }
+ };
+ }
+
+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+ var widget = !ignoreWidget && marker.widgetNode;
+ if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
+ if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+ if (!widget)
+ widget = builder.content.appendChild(document.createElement("span"));
+ widget.setAttribute("cm-marker", marker.id);
+ }
+ if (widget) {
+ builder.cm.display.input.setUneditable(widget);
+ builder.content.appendChild(widget);
+ }
+ builder.pos += size;
+ }
+
+ // Outputs a number of spans to make up a line, taking highlighting
+ // and marked text into account.
+ function insertLineContent(line, builder, styles) {
+ var spans = line.markedSpans,
+ allText = line.text,
+ at = 0;
+ if (!spans) {
+ for (var i = 1; i < styles.length; i += 2)
+ builder.addToken(
+ builder,
+ allText.slice(at, (at = styles[i])),
+ interpretTokenStyle(styles[i + 1], builder.cm.options)
+ );
+ return;
+ }
+
+ var len = allText.length,
+ pos = 0,
+ i = 1,
+ text = "",
+ style,
+ css;
+ var nextChange = 0,
+ spanStyle,
+ spanEndStyle,
+ spanStartStyle,
+ title,
+ collapsed;
+ for (;;) {
+ if (nextChange == pos) {
+ // Update current marker set
+ spanStyle = spanEndStyle = spanStartStyle = title = css = "";
+ collapsed = null;
+ nextChange = Infinity;
+ var foundBookmarks = [];
+ for (var j = 0; j < spans.length; ++j) {
+ var sp = spans[j],
+ m = sp.marker;
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+ foundBookmarks.push(m);
+ } else if (
+ sp.from <= pos &&
+ (sp.to == null ||
+ sp.to > pos ||
+ (m.collapsed && sp.to == pos && sp.from == pos))
+ ) {
+ if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+ nextChange = sp.to;
+ spanEndStyle = "";
+ }
+ if (m.className) spanStyle += " " + m.className;
+ if (m.css) css = m.css;
+ if (m.startStyle && sp.from == pos)
+ spanStartStyle += " " + m.startStyle;
+ if (m.endStyle && sp.to == nextChange)
+ spanEndStyle += " " + m.endStyle;
+ if (m.title && !title) title = m.title;
+ if (
+ m.collapsed &&
+ (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)
+ )
+ collapsed = sp;
+ } else if (sp.from > pos && nextChange > sp.from) {
+ nextChange = sp.from;
+ }
+ }
+ if (collapsed && (collapsed.from || 0) == pos) {
+ buildCollapsedSpan(
+ builder,
+ (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+ collapsed.marker,
+ collapsed.from == null
+ );
+ if (collapsed.to == null) return;
+ if (collapsed.to == pos) collapsed = false;
+ }
+ if (!collapsed && foundBookmarks.length)
+ for (var j = 0; j < foundBookmarks.length; ++j)
+ buildCollapsedSpan(builder, 0, foundBookmarks[j]);
+ }
+ if (pos >= len) break;
+
+ var upto = Math.min(len, nextChange);
+ while (true) {
+ if (text) {
+ var end = pos + text.length;
+ if (!collapsed) {
+ var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+ builder.addToken(
+ builder,
+ tokenText,
+ style ? style + spanStyle : spanStyle,
+ spanStartStyle,
+ pos + tokenText.length == nextChange ? spanEndStyle : "",
+ title,
+ css
+ );
+ }
+ if (end >= upto) {
+ text = text.slice(upto - pos);
+ pos = upto;
+ break;
+ }
+ pos = end;
+ spanStartStyle = "";
+ }
+ text = allText.slice(at, (at = styles[i++]));
+ style = interpretTokenStyle(styles[i++], builder.cm.options);
+ }
+ }
+ }
+
+ // DOCUMENT DATA STRUCTURE
+
+ // By default, updates that start and end at the beginning of a line
+ // are treated specially, in order to make the association of line
+ // widgets and marker elements with the text behave more intuitive.
+ function isWholeLineUpdate(doc, change) {
+ return (
+ change.from.ch == 0 &&
+ change.to.ch == 0 &&
+ lst(change.text) == "" &&
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
+ );
+ }
+
+ // Perform a change on the document data structure.
+ function updateDoc(doc, change, markedSpans, estimateHeight) {
+ function spansFor(n) {
+ return markedSpans ? markedSpans[n] : null;
+ }
+ function update(line, text, spans) {
+ updateLine(line, text, spans, estimateHeight);
+ signalLater(line, "change", line, change);
+ }
+ function linesFor(start, end) {
+ for (var i = start, result = []; i < end; ++i)
+ result.push(new Line(text[i], spansFor(i), estimateHeight));
+ return result;
+ }
+
+ var from = change.from,
+ to = change.to,
+ text = change.text;
+ var firstLine = getLine(doc, from.line),
+ lastLine = getLine(doc, to.line);
+ var lastText = lst(text),
+ lastSpans = spansFor(text.length - 1),
+ nlines = to.line - from.line;
+
+ // Adjust the line structure
+ if (change.full) {
+ doc.insert(0, linesFor(0, text.length));
+ doc.remove(text.length, doc.size - text.length);
+ } else if (isWholeLineUpdate(doc, change)) {
+ // This is a whole-line replace. Treated specially to make
+ // sure line objects move the way they are supposed to.
+ var added = linesFor(0, text.length - 1);
+ update(lastLine, lastLine.text, lastSpans);
+ if (nlines) doc.remove(from.line, nlines);
+ if (added.length) doc.insert(from.line, added);
+ } else if (firstLine == lastLine) {
+ if (text.length == 1) {
+ update(
+ firstLine,
+ firstLine.text.slice(0, from.ch) +
+ lastText +
+ firstLine.text.slice(to.ch),
+ lastSpans
+ );
+ } else {
+ var added = linesFor(1, text.length - 1);
+ added.push(
+ new Line(
+ lastText + firstLine.text.slice(to.ch),
+ lastSpans,
+ estimateHeight
+ )
+ );
+ update(
+ firstLine,
+ firstLine.text.slice(0, from.ch) + text[0],
+ spansFor(0)
+ );
+ doc.insert(from.line + 1, added);
+ }
+ } else if (text.length == 1) {
+ update(
+ firstLine,
+ firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch),
+ spansFor(0)
+ );
+ doc.remove(from.line + 1, nlines);
+ } else {
+ update(
+ firstLine,
+ firstLine.text.slice(0, from.ch) + text[0],
+ spansFor(0)
+ );
+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+ var added = linesFor(1, text.length - 1);
+ if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
+ doc.insert(from.line + 1, added);
+ }
+
+ signalLater(doc, "change", doc, change);
+ }
+
+ // The document is represented as a BTree consisting of leaves, with
+ // chunk of lines in them, and branches, with up to ten leaves or
+ // other branch nodes below them. The top node is always a branch
+ // node, and is the document object itself (meaning it has
+ // additional methods and properties).
+ //
+ // All nodes have parent links. The tree is used both to go from
+ // line numbers to line objects, and to go from objects to numbers.
+ // It also indexes by height, and is used to convert between height
+ // and line object, and to find the total height of the document.
+ //
+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+ function LeafChunk(lines) {
+ this.lines = lines;
+ this.parent = null;
+ for (var i = 0, height = 0; i < lines.length; ++i) {
+ lines[i].parent = this;
+ height += lines[i].height;
+ }
+ this.height = height;
+ }
+
+ LeafChunk.prototype = {
+ chunkSize: function () {
+ return this.lines.length;
+ },
+ // Remove the n lines at offset 'at'.
+ removeInner: function (at, n) {
+ for (var i = at, e = at + n; i < e; ++i) {
+ var line = this.lines[i];
+ this.height -= line.height;
+ cleanUpLine(line);
+ signalLater(line, "delete");
+ }
+ this.lines.splice(at, n);
+ },
+ // Helper used to collapse a small branch into a single leaf.
+ collapse: function (lines) {
+ lines.push.apply(lines, this.lines);
+ },
+ // Insert the given array of lines at offset 'at', count them as
+ // having the given height.
+ insertInner: function (at, lines, height) {
+ this.height += height;
+ this.lines = this.lines
+ .slice(0, at)
+ .concat(lines)
+ .concat(this.lines.slice(at));
+ for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
+ },
+ // Used to iterate over a part of the tree.
+ iterN: function (at, n, op) {
+ for (var e = at + n; at < e; ++at) if (op(this.lines[at])) return true;
+ },
+ };
+
+ function BranchChunk(children) {
+ this.children = children;
+ var size = 0,
+ height = 0;
+ for (var i = 0; i < children.length; ++i) {
+ var ch = children[i];
+ size += ch.chunkSize();
+ height += ch.height;
+ ch.parent = this;
+ }
+ this.size = size;
+ this.height = height;
+ this.parent = null;
+ }
+
+ BranchChunk.prototype = {
+ chunkSize: function () {
+ return this.size;
+ },
+ removeInner: function (at, n) {
+ this.size -= n;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i],
+ sz = child.chunkSize();
+ if (at < sz) {
+ var rm = Math.min(n, sz - at),
+ oldHeight = child.height;
+ child.removeInner(at, rm);
+ this.height -= oldHeight - child.height;
+ if (sz == rm) {
+ this.children.splice(i--, 1);
+ child.parent = null;
+ }
+ if ((n -= rm) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ // If the result is smaller than 25 lines, ensure that it is a
+ // single leaf node.
+ if (
+ this.size - n < 25 &&
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))
+ ) {
+ var lines = [];
+ this.collapse(lines);
+ this.children = [new LeafChunk(lines)];
+ this.children[0].parent = this;
+ }
+ },
+ collapse: function (lines) {
+ for (var i = 0; i < this.children.length; ++i)
+ this.children[i].collapse(lines);
+ },
+ insertInner: function (at, lines, height) {
+ this.size += lines.length;
+ this.height += height;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i],
+ sz = child.chunkSize();
+ if (at <= sz) {
+ child.insertInner(at, lines, height);
+ if (child.lines && child.lines.length > 50) {
+ while (child.lines.length > 50) {
+ var spilled = child.lines.splice(child.lines.length - 25, 25);
+ var newleaf = new LeafChunk(spilled);
+ child.height -= newleaf.height;
+ this.children.splice(i + 1, 0, newleaf);
+ newleaf.parent = this;
+ }
+ this.maybeSpill();
+ }
+ break;
+ }
+ at -= sz;
+ }
+ },
+ // When a node has grown, check whether it should be split.
+ maybeSpill: function () {
+ if (this.children.length <= 10) return;
+ var me = this;
+ do {
+ var spilled = me.children.splice(me.children.length - 5, 5);
+ var sibling = new BranchChunk(spilled);
+ if (!me.parent) {
+ // Become the parent node
+ var copy = new BranchChunk(me.children);
+ copy.parent = me;
+ me.children = [copy, sibling];
+ me = copy;
+ } else {
+ me.size -= sibling.size;
+ me.height -= sibling.height;
+ var myIndex = indexOf(me.parent.children, me);
+ me.parent.children.splice(myIndex + 1, 0, sibling);
+ }
+ sibling.parent = me.parent;
+ } while (me.children.length > 10);
+ me.parent.maybeSpill();
+ },
+ iterN: function (at, n, op) {
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i],
+ sz = child.chunkSize();
+ if (at < sz) {
+ var used = Math.min(n, sz - at);
+ if (child.iterN(at, used, op)) return true;
+ if ((n -= used) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ },
+ };
+
+ var nextDocId = 0;
+ var Doc = (CodeMirror.Doc = function (text, mode, firstLine, lineSep) {
+ if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);
+ if (firstLine == null) firstLine = 0;
+
+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+ this.first = firstLine;
+ this.scrollTop = this.scrollLeft = 0;
+ this.cantEdit = false;
+ this.cleanGeneration = 1;
+ this.frontier = firstLine;
+ var start = Pos(firstLine, 0);
+ this.sel = simpleSelection(start);
+ this.history = new History(null);
+ this.id = ++nextDocId;
+ this.modeOption = mode;
+ this.lineSep = lineSep;
+
+ if (typeof text == "string") text = this.splitLines(text);
+ updateDoc(this, { from: start, to: start, text: text });
+ setSelection(this, simpleSelection(start), sel_dontScroll);
+ });
+
+ Doc.prototype = createObj(BranchChunk.prototype, {
+ constructor: Doc,
+ // Iterate over the document. Supports two forms -- with only one
+ // argument, it calls that for each line in the document. With
+ // three, it iterates over the range given by the first two (with
+ // the second being non-inclusive).
+ iter: function (from, to, op) {
+ if (op) this.iterN(from - this.first, to - from, op);
+ else this.iterN(this.first, this.first + this.size, from);
+ },
+
+ // Non-public interface for adding and removing lines.
+ insert: function (at, lines) {
+ var height = 0;
+ for (var i = 0; i < lines.length; ++i) height += lines[i].height;
+ this.insertInner(at - this.first, lines, height);
+ },
+ remove: function (at, n) {
+ this.removeInner(at - this.first, n);
+ },
+
+ // From here, the methods are part of the public interface. Most
+ // are also available from CodeMirror (editor) instances.
+
+ getValue: function (lineSep) {
+ var lines = getLines(this, this.first, this.first + this.size);
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+ setValue: docMethodOp(function (code) {
+ var top = Pos(this.first, 0),
+ last = this.first + this.size - 1;
+ makeChange(
+ this,
+ {
+ from: top,
+ to: Pos(last, getLine(this, last).text.length),
+ text: this.splitLines(code),
+ origin: "setValue",
+ full: true,
+ },
+ true
+ );
+ setSelection(this, simpleSelection(top));
+ }),
+ replaceRange: function (code, from, to, origin) {
+ from = clipPos(this, from);
+ to = to ? clipPos(this, to) : from;
+ replaceRange(this, code, from, to, origin);
+ },
+ getRange: function (from, to, lineSep) {
+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+
+ getLine: function (line) {
+ var l = this.getLineHandle(line);
+ return l && l.text;
+ },
+
+ getLineHandle: function (line) {
+ if (isLine(this, line)) return getLine(this, line);
+ },
+ getLineNumber: function (line) {
+ return lineNo(line);
+ },
+
+ getLineHandleVisualStart: function (line) {
+ if (typeof line == "number") line = getLine(this, line);
+ return visualLine(line);
+ },
+
+ lineCount: function () {
+ return this.size;
+ },
+ firstLine: function () {
+ return this.first;
+ },
+ lastLine: function () {
+ return this.first + this.size - 1;
+ },
+
+ clipPos: function (pos) {
+ return clipPos(this, pos);
+ },
+
+ getCursor: function (start) {
+ var range = this.sel.primary(),
+ pos;
+ if (start == null || start == "head") pos = range.head;
+ else if (start == "anchor") pos = range.anchor;
+ else if (start == "end" || start == "to" || start === false)
+ pos = range.to();
+ else pos = range.from();
+ return pos;
+ },
+ listSelections: function () {
+ return this.sel.ranges;
+ },
+ somethingSelected: function () {
+ return this.sel.somethingSelected();
+ },
+
+ setCursor: docMethodOp(function (line, ch, options) {
+ setSimpleSelection(
+ this,
+ clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line),
+ null,
+ options
+ );
+ }),
+ setSelection: docMethodOp(function (anchor, head, options) {
+ setSimpleSelection(
+ this,
+ clipPos(this, anchor),
+ clipPos(this, head || anchor),
+ options
+ );
+ }),
+ extendSelection: docMethodOp(function (head, other, options) {
+ extendSelection(
+ this,
+ clipPos(this, head),
+ other && clipPos(this, other),
+ options
+ );
+ }),
+ extendSelections: docMethodOp(function (heads, options) {
+ extendSelections(this, clipPosArray(this, heads, options));
+ }),
+ extendSelectionsBy: docMethodOp(function (f, options) {
+ extendSelections(this, map(this.sel.ranges, f), options);
+ }),
+ setSelections: docMethodOp(function (ranges, primary, options) {
+ if (!ranges.length) return;
+ for (var i = 0, out = []; i < ranges.length; i++)
+ out[i] = new Range(
+ clipPos(this, ranges[i].anchor),
+ clipPos(this, ranges[i].head)
+ );
+ if (primary == null)
+ primary = Math.min(ranges.length - 1, this.sel.primIndex);
+ setSelection(this, normalizeSelection(out, primary), options);
+ }),
+ addSelection: docMethodOp(function (anchor, head, options) {
+ var ranges = this.sel.ranges.slice(0);
+ ranges.push(
+ new Range(clipPos(this, anchor), clipPos(this, head || anchor))
+ );
+ setSelection(
+ this,
+ normalizeSelection(ranges, ranges.length - 1),
+ options
+ );
+ }),
+
+ getSelection: function (lineSep) {
+ var ranges = this.sel.ranges,
+ lines;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ lines = lines ? lines.concat(sel) : sel;
+ }
+ if (lineSep === false) return lines;
+ else return lines.join(lineSep || this.lineSeparator());
+ },
+ getSelections: function (lineSep) {
+ var parts = [],
+ ranges = this.sel.ranges;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());
+ parts[i] = sel;
+ }
+ return parts;
+ },
+ replaceSelection: function (code, collapse, origin) {
+ var dup = [];
+ for (var i = 0; i < this.sel.ranges.length; i++) dup[i] = code;
+ this.replaceSelections(dup, collapse, origin || "+input");
+ },
+ replaceSelections: docMethodOp(function (code, collapse, origin) {
+ var changes = [],
+ sel = this.sel;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ changes[i] = {
+ from: range.from(),
+ to: range.to(),
+ text: this.splitLines(code[i]),
+ origin: origin,
+ };
+ }
+ var newSel =
+ collapse &&
+ collapse != "end" &&
+ computeReplacedSel(this, changes, collapse);
+ for (var i = changes.length - 1; i >= 0; i--)
+ makeChange(this, changes[i]);
+ if (newSel) setSelectionReplaceHistory(this, newSel);
+ else if (this.cm) ensureCursorVisible(this.cm);
+ }),
+ undo: docMethodOp(function () {
+ makeChangeFromHistory(this, "undo");
+ }),
+ redo: docMethodOp(function () {
+ makeChangeFromHistory(this, "redo");
+ }),
+ undoSelection: docMethodOp(function () {
+ makeChangeFromHistory(this, "undo", true);
+ }),
+ redoSelection: docMethodOp(function () {
+ makeChangeFromHistory(this, "redo", true);
+ }),
+
+ setExtending: function (val) {
+ this.extend = val;
+ },
+ getExtending: function () {
+ return this.extend;
+ },
+
+ historySize: function () {
+ var hist = this.history,
+ done = 0,
+ undone = 0;
+ for (var i = 0; i < hist.done.length; i++)
+ if (!hist.done[i].ranges) ++done;
+ for (var i = 0; i < hist.undone.length; i++)
+ if (!hist.undone[i].ranges) ++undone;
+ return { undo: done, redo: undone };
+ },
+ clearHistory: function () {
+ this.history = new History(this.history.maxGeneration);
+ },
+
+ markClean: function () {
+ this.cleanGeneration = this.changeGeneration(true);
+ },
+ changeGeneration: function (forceSplit) {
+ if (forceSplit)
+ this.history.lastOp =
+ this.history.lastSelOp =
+ this.history.lastOrigin =
+ null;
+ return this.history.generation;
+ },
+ isClean: function (gen) {
+ return this.history.generation == (gen || this.cleanGeneration);
+ },
+
+ getHistory: function () {
+ return {
+ done: copyHistoryArray(this.history.done),
+ undone: copyHistoryArray(this.history.undone),
+ };
+ },
+ setHistory: function (histData) {
+ var hist = (this.history = new History(this.history.maxGeneration));
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+ },
+
+ addLineClass: docMethodOp(function (handle, where, cls) {
+ return changeLine(
+ this,
+ handle,
+ where == "gutter" ? "gutter" : "class",
+ function (line) {
+ var prop =
+ where == "text"
+ ? "textClass"
+ : where == "background"
+ ? "bgClass"
+ : where == "gutter"
+ ? "gutterClass"
+ : "wrapClass";
+ if (!line[prop]) line[prop] = cls;
+ else if (classTest(cls).test(line[prop])) return false;
+ else line[prop] += " " + cls;
+ return true;
+ }
+ );
+ }),
+ removeLineClass: docMethodOp(function (handle, where, cls) {
+ return changeLine(
+ this,
+ handle,
+ where == "gutter" ? "gutter" : "class",
+ function (line) {
+ var prop =
+ where == "text"
+ ? "textClass"
+ : where == "background"
+ ? "bgClass"
+ : where == "gutter"
+ ? "gutterClass"
+ : "wrapClass";
+ var cur = line[prop];
+ if (!cur) return false;
+ else if (cls == null) line[prop] = null;
+ else {
+ var found = cur.match(classTest(cls));
+ if (!found) return false;
+ var end = found.index + found[0].length;
+ line[prop] =
+ cur.slice(0, found.index) +
+ (!found.index || end == cur.length ? "" : " ") +
+ cur.slice(end) || null;
+ }
+ return true;
+ }
+ );
+ }),
+
+ addLineWidget: docMethodOp(function (handle, node, options) {
+ return addLineWidget(this, handle, node, options);
+ }),
+ removeLineWidget: function (widget) {
+ widget.clear();
+ },
+
+ markText: function (from, to, options) {
+ return markText(
+ this,
+ clipPos(this, from),
+ clipPos(this, to),
+ options,
+ "range"
+ );
+ },
+ setBookmark: function (pos, options) {
+ var realOpts = {
+ replacedWith:
+ options && (options.nodeType == null ? options.widget : options),
+ insertLeft: options && options.insertLeft,
+ clearWhenEmpty: false,
+ shared: options && options.shared,
+ handleMouseEvents: options && options.handleMouseEvents,
+ };
+ pos = clipPos(this, pos);
+ return markText(this, pos, pos, realOpts, "bookmark");
+ },
+ findMarksAt: function (pos) {
+ pos = clipPos(this, pos);
+ var markers = [],
+ spans = getLine(this, pos.line).markedSpans;
+ if (spans)
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (
+ (span.from == null || span.from <= pos.ch) &&
+ (span.to == null || span.to >= pos.ch)
+ )
+ markers.push(span.marker.parent || span.marker);
+ }
+ return markers;
+ },
+ findMarks: function (from, to, filter) {
+ from = clipPos(this, from);
+ to = clipPos(this, to);
+ var found = [],
+ lineNo = from.line;
+ this.iter(from.line, to.line + 1, function (line) {
+ var spans = line.markedSpans;
+ if (spans)
+ for (var i = 0; i < spans.length; i++) {
+ var span = spans[i];
+ if (
+ !(
+ (lineNo == from.line && from.ch > span.to) ||
+ (span.from == null && lineNo != from.line) ||
+ (lineNo == to.line && span.from > to.ch)
+ ) &&
+ (!filter || filter(span.marker))
+ )
+ found.push(span.marker.parent || span.marker);
+ }
+ ++lineNo;
+ });
+ return found;
+ },
+ getAllMarks: function () {
+ var markers = [];
+ this.iter(function (line) {
+ var sps = line.markedSpans;
+ if (sps)
+ for (var i = 0; i < sps.length; ++i)
+ if (sps[i].from != null) markers.push(sps[i].marker);
+ });
+ return markers;
+ },
+
+ posFromIndex: function (off) {
+ var ch,
+ lineNo = this.first;
+ this.iter(function (line) {
+ var sz = line.text.length + 1;
+ if (sz > off) {
+ ch = off;
+ return true;
+ }
+ off -= sz;
+ ++lineNo;
+ });
+ return clipPos(this, Pos(lineNo, ch));
+ },
+ indexFromPos: function (coords) {
+ coords = clipPos(this, coords);
+ var index = coords.ch;
+ if (coords.line < this.first || coords.ch < 0) return 0;
+ this.iter(this.first, coords.line, function (line) {
+ index += line.text.length + 1;
+ });
+ return index;
+ },
+
+ copy: function (copyHistory) {
+ var doc = new Doc(
+ getLines(this, this.first, this.first + this.size),
+ this.modeOption,
+ this.first,
+ this.lineSep
+ );
+ doc.scrollTop = this.scrollTop;
+ doc.scrollLeft = this.scrollLeft;
+ doc.sel = this.sel;
+ doc.extend = false;
+ if (copyHistory) {
+ doc.history.undoDepth = this.history.undoDepth;
+ doc.setHistory(this.getHistory());
+ }
+ return doc;
+ },
+
+ linkedDoc: function (options) {
+ if (!options) options = {};
+ var from = this.first,
+ to = this.first + this.size;
+ if (options.from != null && options.from > from) from = options.from;
+ if (options.to != null && options.to < to) to = options.to;
+ var copy = new Doc(
+ getLines(this, from, to),
+ options.mode || this.modeOption,
+ from,
+ this.lineSep
+ );
+ if (options.sharedHist) copy.history = this.history;
+ (this.linked || (this.linked = [])).push({
+ doc: copy,
+ sharedHist: options.sharedHist,
+ });
+ copy.linked = [
+ { doc: this, isParent: true, sharedHist: options.sharedHist },
+ ];
+ copySharedMarkers(copy, findSharedMarkers(this));
+ return copy;
+ },
+ unlinkDoc: function (other) {
+ if (other instanceof CodeMirror) other = other.doc;
+ if (this.linked)
+ for (var i = 0; i < this.linked.length; ++i) {
+ var link = this.linked[i];
+ if (link.doc != other) continue;
+ this.linked.splice(i, 1);
+ other.unlinkDoc(this);
+ detachSharedMarkers(findSharedMarkers(this));
+ break;
+ }
+ // If the histories were shared, split them again
+ if (other.history == this.history) {
+ var splitIds = [other.id];
+ linkedDocs(
+ other,
+ function (doc) {
+ splitIds.push(doc.id);
+ },
+ true
+ );
+ other.history = new History(null);
+ other.history.done = copyHistoryArray(this.history.done, splitIds);
+ other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+ }
+ },
+ iterLinkedDocs: function (f) {
+ linkedDocs(this, f);
+ },
+
+ getMode: function () {
+ return this.mode;
+ },
+ getEditor: function () {
+ return this.cm;
+ },
+
+ splitLines: function (str) {
+ if (this.lineSep) return str.split(this.lineSep);
+ return splitLinesAuto(str);
+ },
+ lineSeparator: function () {
+ return this.lineSep || "\n";
+ },
+ });
+
+ // Public alias.
+ Doc.prototype.eachLine = Doc.prototype.iter;
+
+ // Set up methods on CodeMirror's prototype to redirect to the editor's document.
+ var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+ for (var prop in Doc.prototype)
+ if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+ CodeMirror.prototype[prop] = (function (method) {
+ return function () {
+ return method.apply(this.doc, arguments);
+ };
+ })(Doc.prototype[prop]);
+
+ eventMixin(Doc);
+
+ // Call f for all linked documents.
+ function linkedDocs(doc, f, sharedHistOnly) {
+ function propagate(doc, skip, sharedHist) {
+ if (doc.linked)
+ for (var i = 0; i < doc.linked.length; ++i) {
+ var rel = doc.linked[i];
+ if (rel.doc == skip) continue;
+ var shared = sharedHist && rel.sharedHist;
+ if (sharedHistOnly && !shared) continue;
+ f(rel.doc, shared);
+ propagate(rel.doc, doc, shared);
+ }
+ }
+ propagate(doc, null, true);
+ }
+
+ // Attach a document to an editor.
+ function attachDoc(cm, doc) {
+ if (doc.cm) throw new Error("This document is already in use.");
+ cm.doc = doc;
+ doc.cm = cm;
+ estimateLineHeights(cm);
+ loadMode(cm);
+ if (!cm.options.lineWrapping) findMaxLine(cm);
+ cm.options.mode = doc.modeOption;
+ regChange(cm);
+ }
+
+ // LINE UTILITIES
+
+ // Find the line object corresponding to the given line number.
+ function getLine(doc, n) {
+ n -= doc.first;
+ if (n < 0 || n >= doc.size)
+ throw new Error(
+ "There is no line " + (n + doc.first) + " in the document."
+ );
+ for (var chunk = doc; !chunk.lines; ) {
+ for (var i = 0; ; ++i) {
+ var child = chunk.children[i],
+ sz = child.chunkSize();
+ if (n < sz) {
+ chunk = child;
+ break;
+ }
+ n -= sz;
+ }
+ }
+ return chunk.lines[n];
+ }
+
+ // Get the part of a document between two positions, as an array of
+ // strings.
+ function getBetween(doc, start, end) {
+ var out = [],
+ n = start.line;
+ doc.iter(start.line, end.line + 1, function (line) {
+ var text = line.text;
+ if (n == end.line) text = text.slice(0, end.ch);
+ if (n == start.line) text = text.slice(start.ch);
+ out.push(text);
+ ++n;
+ });
+ return out;
+ }
+ // Get the lines between from and to, as array of strings.
+ function getLines(doc, from, to) {
+ var out = [];
+ doc.iter(from, to, function (line) {
+ out.push(line.text);
+ });
+ return out;
+ }
+
+ // Update the height of a line, propagating the height change
+ // upwards to parent nodes.
+ function updateLineHeight(line, height) {
+ var diff = height - line.height;
+ if (diff) for (var n = line; n; n = n.parent) n.height += diff;
+ }
+
+ // Given a line object, find its line number by walking up through
+ // its parent links.
+ function lineNo(line) {
+ if (line.parent == null) return null;
+ var cur = line.parent,
+ no = indexOf(cur.lines, line);
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+ for (var i = 0; ; ++i) {
+ if (chunk.children[i] == cur) break;
+ no += chunk.children[i].chunkSize();
+ }
+ }
+ return no + cur.first;
+ }
+
+ // Find the line at the given vertical position, using the height
+ // information in the document tree.
+ function lineAtHeight(chunk, h) {
+ var n = chunk.first;
+ outer: do {
+ for (var i = 0; i < chunk.children.length; ++i) {
+ var child = chunk.children[i],
+ ch = child.height;
+ if (h < ch) {
+ chunk = child;
+ continue outer;
+ }
+ h -= ch;
+ n += child.chunkSize();
+ }
+ return n;
+ } while (!chunk.lines);
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i],
+ lh = line.height;
+ if (h < lh) break;
+ h -= lh;
+ }
+ return n + i;
+ }
+
+ // Find the height above the given line.
+ function heightAtLine(lineObj) {
+ lineObj = visualLine(lineObj);
+
+ var h = 0,
+ chunk = lineObj.parent;
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i];
+ if (line == lineObj) break;
+ else h += line.height;
+ }
+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+ for (var i = 0; i < p.children.length; ++i) {
+ var cur = p.children[i];
+ if (cur == chunk) break;
+ else h += cur.height;
+ }
+ }
+ return h;
+ }
+
+ // Get the bidi ordering for the given line (and cache it). Returns
+ // false for lines that are fully left-to-right, and an array of
+ // BidiSpan objects otherwise.
+ function getOrder(line) {
+ var order = line.order;
+ if (order == null) order = line.order = bidiOrdering(line.text);
+ return order;
+ }
+
+ // HISTORY
+
+ function History(startGen) {
+ // Arrays of change events and selections. Doing something adds an
+ // event to done and clears undo. Undoing moves events from done
+ // to undone, redoing moves them in the other direction.
+ this.done = [];
+ this.undone = [];
+ this.undoDepth = Infinity;
+ // Used to track when changes can be merged into a single undo
+ // event
+ this.lastModTime = this.lastSelTime = 0;
+ this.lastOp = this.lastSelOp = null;
+ this.lastOrigin = this.lastSelOrigin = null;
+ // Used by the isClean() method
+ this.generation = this.maxGeneration = startGen || 1;
+ }
+
+ // Create a history change event from an updateDoc-style change
+ // object.
+ function historyChangeFromChange(doc, change) {
+ var histChange = {
+ from: copyPos(change.from),
+ to: changeEnd(change),
+ text: getBetween(doc, change.from, change.to),
+ };
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+ linkedDocs(
+ doc,
+ function (doc) {
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+ },
+ true
+ );
+ return histChange;
+ }
+
+ // Pop all selection events off the end of a history array. Stop at
+ // a change event.
+ function clearSelectionEvents(array) {
+ while (array.length) {
+ var last = lst(array);
+ if (last.ranges) array.pop();
+ else break;
+ }
+ }
+
+ // Find the top change event in the history. Pop off selection
+ // events that are in the way.
+ function lastChangeEvent(hist, force) {
+ if (force) {
+ clearSelectionEvents(hist.done);
+ return lst(hist.done);
+ } else if (hist.done.length && !lst(hist.done).ranges) {
+ return lst(hist.done);
+ } else if (
+ hist.done.length > 1 &&
+ !hist.done[hist.done.length - 2].ranges
+ ) {
+ hist.done.pop();
+ return lst(hist.done);
+ }
+ }
+
+ // Register a change in the history. Merges changes that are within
+ // a single operation, ore are close together with an origin that
+ // allows merging (starting with "+") into a single event.
+ function addChangeToHistory(doc, change, selAfter, opId) {
+ var hist = doc.history;
+ hist.undone.length = 0;
+ var time = +new Date(),
+ cur;
+
+ if (
+ (hist.lastOp == opId ||
+ (hist.lastOrigin == change.origin &&
+ change.origin &&
+ ((change.origin.charAt(0) == "+" &&
+ doc.cm &&
+ hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+ change.origin.charAt(0) == "*"))) &&
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))
+ ) {
+ // Merge this change into the last event
+ var last = lst(cur.changes);
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+ // Optimized case for simple insertion -- don't want to add
+ // new changesets for every character typed
+ last.to = changeEnd(change);
+ } else {
+ // Add new sub-event
+ cur.changes.push(historyChangeFromChange(doc, change));
+ }
+ } else {
+ // Can not be merged, start a new event.
+ var before = lst(hist.done);
+ if (!before || !before.ranges) pushSelectionToHistory(doc.sel, hist.done);
+ cur = {
+ changes: [historyChangeFromChange(doc, change)],
+ generation: hist.generation,
+ };
+ hist.done.push(cur);
+ while (hist.done.length > hist.undoDepth) {
+ hist.done.shift();
+ if (!hist.done[0].ranges) hist.done.shift();
+ }
+ }
+ hist.done.push(selAfter);
+ hist.generation = ++hist.maxGeneration;
+ hist.lastModTime = hist.lastSelTime = time;
+ hist.lastOp = hist.lastSelOp = opId;
+ hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+ if (!last) signal(doc, "historyAdded");
+ }
+
+ function selectionEventCanBeMerged(doc, origin, prev, sel) {
+ var ch = origin.charAt(0);
+ return (
+ ch == "*" ||
+ (ch == "+" &&
+ prev.ranges.length == sel.ranges.length &&
+ prev.somethingSelected() == sel.somethingSelected() &&
+ new Date() - doc.history.lastSelTime <=
+ (doc.cm ? doc.cm.options.historyEventDelay : 500))
+ );
+ }
+
+ // Called whenever the selection changes, sets the new selection as
+ // the pending selection in the history, and pushes the old pending
+ // selection into the 'done' array when it was significantly
+ // different (in number of selected ranges, emptiness, or time).
+ function addSelectionToHistory(doc, sel, opId, options) {
+ var hist = doc.history,
+ origin = options && options.origin;
+
+ // A new event is started when the previous origin does not match
+ // the current, or the origins don't allow matching. Origins
+ // starting with * are always merged, those starting with + are
+ // merged when similar and close together in time.
+ if (
+ opId == hist.lastSelOp ||
+ (origin &&
+ hist.lastSelOrigin == origin &&
+ ((hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin) ||
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))
+ )
+ hist.done[hist.done.length - 1] = sel;
+ else pushSelectionToHistory(sel, hist.done);
+
+ hist.lastSelTime = +new Date();
+ hist.lastSelOrigin = origin;
+ hist.lastSelOp = opId;
+ if (options && options.clearRedo !== false)
+ clearSelectionEvents(hist.undone);
+ }
+
+ function pushSelectionToHistory(sel, dest) {
+ var top = lst(dest);
+ if (!(top && top.ranges && top.equals(sel))) dest.push(sel);
+ }
+
+ // Used to store marked span information in the history.
+ function attachLocalSpans(doc, change, from, to) {
+ var existing = change["spans_" + doc.id],
+ n = 0;
+ doc.iter(
+ Math.max(doc.first, from),
+ Math.min(doc.first + doc.size, to),
+ function (line) {
+ if (line.markedSpans)
+ (existing || (existing = change["spans_" + doc.id] = {}))[n] =
+ line.markedSpans;
+ ++n;
+ }
+ );
+ }
+
+ // When un/re-doing restores text containing marked spans, those
+ // that have been explicitly cleared should not be restored.
+ function removeClearedSpans(spans) {
+ if (!spans) return null;
+ for (var i = 0, out; i < spans.length; ++i) {
+ if (spans[i].marker.explicitlyCleared) {
+ if (!out) out = spans.slice(0, i);
+ } else if (out) out.push(spans[i]);
+ }
+ return !out ? spans : out.length ? out : null;
+ }
+
+ // Retrieve and filter the old marked spans stored in a change event.
+ function getOldSpans(doc, change) {
+ var found = change["spans_" + doc.id];
+ if (!found) return null;
+ for (var i = 0, nw = []; i < change.text.length; ++i)
+ nw.push(removeClearedSpans(found[i]));
+ return nw;
+ }
+
+ // Used both to provide a JSON-safe object in .getHistory, and, when
+ // detaching a document, to split the history in two
+ function copyHistoryArray(events, newGroup, instantiateSel) {
+ for (var i = 0, copy = []; i < events.length; ++i) {
+ var event = events[i];
+ if (event.ranges) {
+ copy.push(
+ instantiateSel ? Selection.prototype.deepCopy.call(event) : event
+ );
+ continue;
+ }
+ var changes = event.changes,
+ newChanges = [];
+ copy.push({ changes: newChanges });
+ for (var j = 0; j < changes.length; ++j) {
+ var change = changes[j],
+ m;
+ newChanges.push({
+ from: change.from,
+ to: change.to,
+ text: change.text,
+ });
+ if (newGroup)
+ for (var prop in change)
+ if ((m = prop.match(/^spans_(\d+)$/))) {
+ if (indexOf(newGroup, Number(m[1])) > -1) {
+ lst(newChanges)[prop] = change[prop];
+ delete change[prop];
+ }
+ }
+ }
+ }
+ return copy;
+ }
+
+ // Rebasing/resetting history to deal with externally-sourced changes
+
+ function rebaseHistSelSingle(pos, from, to, diff) {
+ if (to < pos.line) {
+ pos.line += diff;
+ } else if (from < pos.line) {
+ pos.line = from;
+ pos.ch = 0;
+ }
+ }
+
+ // Tries to rebase an array of history events given a change in the
+ // document. If the change touches the same lines as the event, the
+ // event, and everything 'behind' it, is discarded. If the change is
+ // before the event, the event's positions are updated. Uses a
+ // copy-on-write scheme for the positions, to avoid having to
+ // reallocate them all on every rebase, but also avoid problems with
+ // shared position objects being unsafely updated.
+ function rebaseHistArray(array, from, to, diff) {
+ for (var i = 0; i < array.length; ++i) {
+ var sub = array[i],
+ ok = true;
+ if (sub.ranges) {
+ if (!sub.copied) {
+ sub = array[i] = sub.deepCopy();
+ sub.copied = true;
+ }
+ for (var j = 0; j < sub.ranges.length; j++) {
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+ }
+ continue;
+ }
+ for (var j = 0; j < sub.changes.length; ++j) {
+ var cur = sub.changes[j];
+ if (to < cur.from.line) {
+ cur.from = Pos(cur.from.line + diff, cur.from.ch);
+ cur.to = Pos(cur.to.line + diff, cur.to.ch);
+ } else if (from <= cur.to.line) {
+ ok = false;
+ break;
+ }
+ }
+ if (!ok) {
+ array.splice(0, i + 1);
+ i = 0;
+ }
+ }
+ }
+
+ function rebaseHist(hist, change) {
+ var from = change.from.line,
+ to = change.to.line,
+ diff = change.text.length - (to - from) - 1;
+ rebaseHistArray(hist.done, from, to, diff);
+ rebaseHistArray(hist.undone, from, to, diff);
+ }
+
+ // EVENT UTILITIES
+
+ // Due to the fact that we still support jurassic IE versions, some
+ // compatibility wrappers are needed.
+
+ var e_preventDefault = (CodeMirror.e_preventDefault = function (e) {
+ if (e.preventDefault) e.preventDefault();
+ else e.returnValue = false;
+ });
+ var e_stopPropagation = (CodeMirror.e_stopPropagation = function (e) {
+ if (e.stopPropagation) e.stopPropagation();
+ else e.cancelBubble = true;
+ });
+ function e_defaultPrevented(e) {
+ return e.defaultPrevented != null
+ ? e.defaultPrevented
+ : e.returnValue == false;
+ }
+ var e_stop = (CodeMirror.e_stop = function (e) {
+ e_preventDefault(e);
+ e_stopPropagation(e);
+ });
+
+ function e_target(e) {
+ return e.target || e.srcElement;
+ }
+ function e_button(e) {
+ var b = e.which;
+ if (b == null) {
+ if (e.button & 1) b = 1;
+ else if (e.button & 2) b = 3;
+ else if (e.button & 4) b = 2;
+ }
+ if (mac && e.ctrlKey && b == 1) b = 3;
+ return b;
+ }
+
+ // EVENT HANDLING
+
+ // Lightweight event framework. on/off also work on DOM nodes,
+ // registering native DOM handlers.
+
+ var on = (CodeMirror.on = function (emitter, type, f) {
+ if (emitter.addEventListener) emitter.addEventListener(type, f, false);
+ else if (emitter.attachEvent) emitter.attachEvent("on" + type, f);
+ else {
+ var map = emitter._handlers || (emitter._handlers = {});
+ var arr = map[type] || (map[type] = []);
+ arr.push(f);
+ }
+ });
+
+ var off = (CodeMirror.off = function (emitter, type, f) {
+ if (emitter.removeEventListener)
+ emitter.removeEventListener(type, f, false);
+ else if (emitter.detachEvent) emitter.detachEvent("on" + type, f);
+ else {
+ var arr = emitter._handlers && emitter._handlers[type];
+ if (!arr) return;
+ for (var i = 0; i < arr.length; ++i)
+ if (arr[i] == f) {
+ arr.splice(i, 1);
+ break;
+ }
+ }
+ });
+
+ var signal = (CodeMirror.signal = function (emitter, type /*, values...*/) {
+ var arr = emitter._handlers && emitter._handlers[type];
+ if (!arr) return;
+ var args = Array.prototype.slice.call(arguments, 2);
+ for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
+ });
+
+ var orphanDelayedCallbacks = null;
+
+ // Often, we want to signal events at a point where we are in the
+ // middle of some work, but don't want the handler to start calling
+ // other methods on the editor, which might be in an inconsistent
+ // state or simply not expect any other events to happen.
+ // signalLater looks whether there are any handlers, and schedules
+ // them to be executed when the last operation ends, or, if no
+ // operation is active, when a timeout fires.
+ function signalLater(emitter, type /*, values...*/) {
+ var arr = emitter._handlers && emitter._handlers[type];
+ if (!arr) return;
+ var args = Array.prototype.slice.call(arguments, 2),
+ list;
+ if (operationGroup) {
+ list = operationGroup.delayedCallbacks;
+ } else if (orphanDelayedCallbacks) {
+ list = orphanDelayedCallbacks;
+ } else {
+ list = orphanDelayedCallbacks = [];
+ setTimeout(fireOrphanDelayed, 0);
+ }
+ function bnd(f) {
+ return function () {
+ f.apply(null, args);
+ };
+ }
+ for (var i = 0; i < arr.length; ++i) list.push(bnd(arr[i]));
+ }
+
+ function fireOrphanDelayed() {
+ var delayed = orphanDelayedCallbacks;
+ orphanDelayedCallbacks = null;
+ for (var i = 0; i < delayed.length; ++i) delayed[i]();
+ }
+
+ // The DOM events that CodeMirror handles can be overridden by
+ // registering a (non-DOM) handler on the editor for the event name,
+ // and preventDefault-ing the event in that handler.
+ function signalDOMEvent(cm, e, override) {
+ if (typeof e == "string")
+ e = {
+ type: e,
+ preventDefault: function () {
+ this.defaultPrevented = true;
+ },
+ };
+ signal(cm, override || e.type, cm, e);
+ return e_defaultPrevented(e) || e.codemirrorIgnore;
+ }
+
+ function signalCursorActivity(cm) {
+ var arr = cm._handlers && cm._handlers.cursorActivity;
+ if (!arr) return;
+ var set =
+ cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+ for (var i = 0; i < arr.length; ++i)
+ if (indexOf(set, arr[i]) == -1) set.push(arr[i]);
+ }
+
+ function hasHandler(emitter, type) {
+ var arr = emitter._handlers && emitter._handlers[type];
+ return arr && arr.length > 0;
+ }
+
+ // Add on and off methods to a constructor's prototype, to make
+ // registering events on such objects more convenient.
+ function eventMixin(ctor) {
+ ctor.prototype.on = function (type, f) {
+ on(this, type, f);
+ };
+ ctor.prototype.off = function (type, f) {
+ off(this, type, f);
+ };
+ }
+
+ // MISC UTILITIES
+
+ // Number of pixels added to scroller and sizer to hide scrollbar
+ var scrollerGap = 30;
+
+ // Returned or thrown by various protocols to signal 'I'm not
+ // handling this'.
+ var Pass = (CodeMirror.Pass = {
+ toString: function () {
+ return "CodeMirror.Pass";
+ },
+ });
+
+ // Reused option objects for setSelection & friends
+ var sel_dontScroll = { scroll: false },
+ sel_mouse = { origin: "*mouse" },
+ sel_move = { origin: "+move" };
+
+ function Delayed() {
+ this.id = null;
+ }
+ Delayed.prototype.set = function (ms, f) {
+ clearTimeout(this.id);
+ this.id = setTimeout(f, ms);
+ };
+
+ // Counts the column offset in a string, taking tabs into account.
+ // Used mostly to find indentation.
+ var countColumn = (CodeMirror.countColumn = function (
+ string,
+ end,
+ tabSize,
+ startIndex,
+ startValue
+ ) {
+ if (end == null) {
+ end = string.search(/[^\s\u00a0]/);
+ if (end == -1) end = string.length;
+ }
+ for (var i = startIndex || 0, n = startValue || 0; ; ) {
+ var nextTab = string.indexOf("\t", i);
+ if (nextTab < 0 || nextTab >= end) return n + (end - i);
+ n += nextTab - i;
+ n += tabSize - (n % tabSize);
+ i = nextTab + 1;
+ }
+ });
+
+ // The inverse of countColumn -- find the offset that corresponds to
+ // a particular column.
+ var findColumn = (CodeMirror.findColumn = function (string, goal, tabSize) {
+ for (var pos = 0, col = 0; ; ) {
+ var nextTab = string.indexOf("\t", pos);
+ if (nextTab == -1) nextTab = string.length;
+ var skipped = nextTab - pos;
+ if (nextTab == string.length || col + skipped >= goal)
+ return pos + Math.min(skipped, goal - col);
+ col += nextTab - pos;
+ col += tabSize - (col % tabSize);
+ pos = nextTab + 1;
+ if (col >= goal) return pos;
+ }
+ });
+
+ var spaceStrs = [""];
+ function spaceStr(n) {
+ while (spaceStrs.length <= n) spaceStrs.push(lst(spaceStrs) + " ");
+ return spaceStrs[n];
+ }
+
+ function lst(arr) {
+ return arr[arr.length - 1];
+ }
+
+ var selectInput = function (node) {
+ node.select();
+ };
+ if (ios)
+ // Mobile Safari apparently has a bug where select() is broken.
+ selectInput = function (node) {
+ node.selectionStart = 0;
+ node.selectionEnd = node.value.length;
+ };
+ else if (ie)
+ // Suppress mysterious IE10 errors
+ selectInput = function (node) {
+ try {
+ node.select();
+ } catch (_e) {}
+ };
+
+ function indexOf(array, elt) {
+ for (var i = 0; i < array.length; ++i) if (array[i] == elt) return i;
+ return -1;
+ }
+ function map(array, f) {
+ var out = [];
+ for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
+ return out;
+ }
+
+ function nothing() {}
+
+ function createObj(base, props) {
+ var inst;
+ if (Object.create) {
+ inst = Object.create(base);
+ } else {
+ nothing.prototype = base;
+ inst = new nothing();
+ }
+ if (props) copyObj(props, inst);
+ return inst;
+ }
+
+ function copyObj(obj, target, overwrite) {
+ if (!target) target = {};
+ for (var prop in obj)
+ if (
+ obj.hasOwnProperty(prop) &&
+ (overwrite !== false || !target.hasOwnProperty(prop))
+ )
+ target[prop] = obj[prop];
+ return target;
+ }
+
+ function bind(f) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ return function () {
+ return f.apply(null, args);
+ };
+ }
+
+ var nonASCIISingleCaseWordChar =
+ /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+ var isWordCharBasic = (CodeMirror.isWordChar = function (ch) {
+ return (
+ /\w/.test(ch) ||
+ (ch > "\x80" &&
+ (ch.toUpperCase() != ch.toLowerCase() ||
+ nonASCIISingleCaseWordChar.test(ch)))
+ );
+ });
+ function isWordChar(ch, helper) {
+ if (!helper) return isWordCharBasic(ch);
+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
+ return helper.test(ch);
+ }
+
+ function isEmpty(obj) {
+ for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
+ return true;
+ }
+
+ // Extending unicode characters. A series of a non-extending char +
+ // any number of extending chars is treated as a single unit as far
+ // as editing and measuring is concerned. This is not fully correct,
+ // since some scripts/fonts/browsers also treat other configurations
+ // of code points as a group.
+ var extendingChars =
+ /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+ function isExtendingChar(ch) {
+ return ch.charCodeAt(0) >= 768 && extendingChars.test(ch);
+ }
+
+ // DOM UTILITIES
+
+ function elt(tag, content, className, style) {
+ var e = document.createElement(tag);
+ if (className) e.className = className;
+ if (style) e.style.cssText = style;
+ if (typeof content == "string")
+ e.appendChild(document.createTextNode(content));
+ else if (content)
+ for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
+ return e;
+ }
+
+ var range;
+ if (document.createRange)
+ range = function (node, start, end, endNode) {
+ var r = document.createRange();
+ r.setEnd(endNode || node, end);
+ r.setStart(node, start);
+ return r;
+ };
+ else
+ range = function (node, start, end) {
+ var r = document.body.createTextRange();
+ try {
+ r.moveToElementText(node.parentNode);
+ } catch (e) {
+ return r;
+ }
+ r.collapse(true);
+ r.moveEnd("character", end);
+ r.moveStart("character", start);
+ return r;
+ };
+
+ function removeChildren(e) {
+ for (var count = e.childNodes.length; count > 0; --count)
+ e.removeChild(e.firstChild);
+ return e;
+ }
+
+ function removeChildrenAndAdd(parent, e) {
+ return removeChildren(parent).appendChild(e);
+ }
+
+ var contains = (CodeMirror.contains = function (parent, child) {
+ if (child.nodeType == 3)
+ // Android browser always returns false when child is a textnode
+ child = child.parentNode;
+ if (parent.contains) return parent.contains(child);
+ do {
+ if (child.nodeType == 11) child = child.host;
+ if (child == parent) return true;
+ } while ((child = child.parentNode));
+ });
+
+ function activeElt() {
+ var activeElement = document.activeElement;
+ while (
+ activeElement &&
+ activeElement.root &&
+ activeElement.root.activeElement
+ )
+ activeElement = activeElement.root.activeElement;
+ return activeElement;
+ }
+ // Older versions of IE throws unspecified error when touching
+ // document.activeElement in some cases (during loading, in iframe)
+ if (ie && ie_version < 11)
+ activeElt = function () {
+ try {
+ return document.activeElement;
+ } catch (e) {
+ return document.body;
+ }
+ };
+
+ function classTest(cls) {
+ return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*");
+ }
+ var rmClass = (CodeMirror.rmClass = function (node, cls) {
+ var current = node.className;
+ var match = classTest(cls).exec(current);
+ if (match) {
+ var after = current.slice(match.index + match[0].length);
+ node.className =
+ current.slice(0, match.index) + (after ? match[1] + after : "");
+ }
+ });
+ var addClass = (CodeMirror.addClass = function (node, cls) {
+ var current = node.className;
+ if (!classTest(cls).test(current))
+ node.className += (current ? " " : "") + cls;
+ });
+ function joinClasses(a, b) {
+ var as = a.split(" ");
+ for (var i = 0; i < as.length; i++)
+ if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
+ return b;
+ }
+
+ // WINDOW-WIDE EVENTS
+
+ // These must be handled carefully, because naively registering a
+ // handler for each editor will cause the editors to never be
+ // garbage collected.
+
+ function forEachCodeMirror(f) {
+ if (!document.body.getElementsByClassName) return;
+ var byClass = document.body.getElementsByClassName("CodeMirror");
+ for (var i = 0; i < byClass.length; i++) {
+ var cm = byClass[i].CodeMirror;
+ if (cm) f(cm);
+ }
+ }
+
+ var globalsRegistered = false;
+ function ensureGlobalHandlers() {
+ if (globalsRegistered) return;
+ registerGlobalHandlers();
+ globalsRegistered = true;
+ }
+ function registerGlobalHandlers() {
+ // When the window resizes, we need to refresh active editors.
+ var resizeTimer;
+ on(window, "resize", function () {
+ if (resizeTimer == null)
+ resizeTimer = setTimeout(function () {
+ resizeTimer = null;
+ forEachCodeMirror(onResize);
+ }, 100);
+ });
+ // When the window loses focus, we want to show the editor as blurred
+ on(window, "blur", function () {
+ forEachCodeMirror(onBlur);
+ });
+ }
+
+ // FEATURE DETECTION
+
+ // Detect drag-and-drop
+ var dragAndDrop = (function () {
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
+ // couldn't get it to work yet.
+ if (ie && ie_version < 9) return false;
+ var div = elt("div");
+ return "draggable" in div || "dragDrop" in div;
+ })();
+
+ var zwspSupported;
+ function zeroWidthElement(measure) {
+ if (zwspSupported == null) {
+ var test = elt("span", "\u200b");
+ removeChildrenAndAdd(
+ measure,
+ elt("span", [test, document.createTextNode("x")])
+ );
+ if (measure.firstChild.offsetHeight != 0)
+ zwspSupported =
+ test.offsetWidth <= 1 &&
+ test.offsetHeight > 2 &&
+ !(ie && ie_version < 8);
+ }
+ var node = zwspSupported
+ ? elt("span", "\u200b")
+ : elt(
+ "span",
+ "\u00a0",
+ null,
+ "display: inline-block; width: 1px; margin-right: -1px"
+ );
+ node.setAttribute("cm-text", "");
+ return node;
+ }
+
+ // Feature-detect IE's crummy client rect reporting for bidi text
+ var badBidiRects;
+ function hasBadBidiRects(measure) {
+ if (badBidiRects != null) return badBidiRects;
+ var txt = removeChildrenAndAdd(
+ measure,
+ document.createTextNode("A\u062eA")
+ );
+ var r0 = range(txt, 0, 1).getBoundingClientRect();
+ if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
+ var r1 = range(txt, 1, 2).getBoundingClientRect();
+ return (badBidiRects = r1.right - r0.right < 3);
+ }
+
+ // See if "".split is the broken IE version, if so, provide an
+ // alternative way to split lines.
+ var splitLinesAuto = (CodeMirror.splitLines =
+ "\n\nb".split(/\n/).length != 3
+ ? function (string) {
+ var pos = 0,
+ result = [],
+ l = string.length;
+ while (pos <= l) {
+ var nl = string.indexOf("\n", pos);
+ if (nl == -1) nl = string.length;
+ var line = string.slice(
+ pos,
+ string.charAt(nl - 1) == "\r" ? nl - 1 : nl
+ );
+ var rt = line.indexOf("\r");
+ if (rt != -1) {
+ result.push(line.slice(0, rt));
+ pos += rt + 1;
+ } else {
+ result.push(line);
+ pos = nl + 1;
+ }
+ }
+ return result;
+ }
+ : function (string) {
+ return string.split(/\r\n?|\n/);
+ });
+
+ var hasSelection = window.getSelection
+ ? function (te) {
+ try {
+ return te.selectionStart != te.selectionEnd;
+ } catch (e) {
+ return false;
+ }
+ }
+ : function (te) {
+ try {
+ var range = te.ownerDocument.selection.createRange();
+ } catch (e) {}
+ if (!range || range.parentElement() != te) return false;
+ return range.compareEndPoints("StartToEnd", range) != 0;
+ };
+
+ var hasCopyEvent = (function () {
+ var e = elt("div");
+ if ("oncopy" in e) return true;
+ e.setAttribute("oncopy", "return;");
+ return typeof e.oncopy == "function";
+ })();
+
+ var badZoomedRects = null;
+ function hasBadZoomedRects(measure) {
+ if (badZoomedRects != null) return badZoomedRects;
+ var node = removeChildrenAndAdd(measure, elt("span", "x"));
+ var normal = node.getBoundingClientRect();
+ var fromRange = range(node, 0, 1).getBoundingClientRect();
+ return (badZoomedRects = Math.abs(normal.left - fromRange.left) > 1);
+ }
+
+ // KEY NAMES
+
+ var keyNames = (CodeMirror.keyNames = {
+ 3: "Enter",
+ 8: "Backspace",
+ 9: "Tab",
+ 13: "Enter",
+ 16: "Shift",
+ 17: "Ctrl",
+ 18: "Alt",
+ 19: "Pause",
+ 20: "CapsLock",
+ 27: "Esc",
+ 32: "Space",
+ 33: "PageUp",
+ 34: "PageDown",
+ 35: "End",
+ 36: "Home",
+ 37: "Left",
+ 38: "Up",
+ 39: "Right",
+ 40: "Down",
+ 44: "PrintScrn",
+ 45: "Insert",
+ 46: "Delete",
+ 59: ";",
+ 61: "=",
+ 91: "Mod",
+ 92: "Mod",
+ 93: "Mod",
+ 106: "*",
+ 107: "=",
+ 109: "-",
+ 110: ".",
+ 111: "/",
+ 127: "Delete",
+ 173: "-",
+ 186: ";",
+ 187: "=",
+ 188: ",",
+ 189: "-",
+ 190: ".",
+ 191: "/",
+ 192: "`",
+ 219: "[",
+ 220: "\\",
+ 221: "]",
+ 222: "'",
+ 63232: "Up",
+ 63233: "Down",
+ 63234: "Left",
+ 63235: "Right",
+ 63272: "Delete",
+ 63273: "Home",
+ 63275: "End",
+ 63276: "PageUp",
+ 63277: "PageDown",
+ 63302: "Insert",
+ });
+ (function () {
+ // Number keys
+ for (var i = 0; i < 10; i++)
+ keyNames[i + 48] = keyNames[i + 96] = String(i);
+ // Alphabetic keys
+ for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+ // Function keys
+ for (var i = 1; i <= 12; i++)
+ keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+ })();
+
+ // BIDI HELPERS
+
+ function iterateBidiSections(order, from, to, f) {
+ if (!order) return f(from, to, "ltr");
+ var found = false;
+ for (var i = 0; i < order.length; ++i) {
+ var part = order[i];
+ if (
+ (part.from < to && part.to > from) ||
+ (from == to && part.to == from)
+ ) {
+ f(
+ Math.max(part.from, from),
+ Math.min(part.to, to),
+ part.level == 1 ? "rtl" : "ltr"
+ );
+ found = true;
+ }
+ }
+ if (!found) f(from, to, "ltr");
+ }
+
+ function bidiLeft(part) {
+ return part.level % 2 ? part.to : part.from;
+ }
+ function bidiRight(part) {
+ return part.level % 2 ? part.from : part.to;
+ }
+
+ function lineLeft(line) {
+ var order = getOrder(line);
+ return order ? bidiLeft(order[0]) : 0;
+ }
+ function lineRight(line) {
+ var order = getOrder(line);
+ if (!order) return line.text.length;
+ return bidiRight(lst(order));
+ }
+
+ function lineStart(cm, lineN) {
+ var line = getLine(cm.doc, lineN);
+ var visual = visualLine(line);
+ if (visual != line) lineN = lineNo(visual);
+ var order = getOrder(visual);
+ var ch = !order
+ ? 0
+ : order[0].level % 2
+ ? lineRight(visual)
+ : lineLeft(visual);
+ return Pos(lineN, ch);
+ }
+ function lineEnd(cm, lineN) {
+ var merged,
+ line = getLine(cm.doc, lineN);
+ while ((merged = collapsedSpanAtEnd(line))) {
+ line = merged.find(1, true).line;
+ lineN = null;
+ }
+ var order = getOrder(line);
+ var ch = !order
+ ? line.text.length
+ : order[0].level % 2
+ ? lineLeft(line)
+ : lineRight(line);
+ return Pos(lineN == null ? lineNo(line) : lineN, ch);
+ }
+ function lineStartSmart(cm, pos) {
+ var start = lineStart(cm, pos.line);
+ var line = getLine(cm.doc, start.line);
+ var order = getOrder(line);
+ if (!order || order[0].level == 0) {
+ var firstNonWS = Math.max(0, line.text.search(/\S/));
+ var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+ return Pos(start.line, inWS ? 0 : firstNonWS);
+ }
+ return start;
+ }
+
+ function compareBidiLevel(order, a, b) {
+ var linedir = order[0].level;
+ if (a == linedir) return true;
+ if (b == linedir) return false;
+ return a < b;
+ }
+ var bidiOther;
+ function getBidiPartAt(order, pos) {
+ bidiOther = null;
+ for (var i = 0, found; i < order.length; ++i) {
+ var cur = order[i];
+ if (cur.from < pos && cur.to > pos) return i;
+ if (cur.from == pos || cur.to == pos) {
+ if (found == null) {
+ found = i;
+ } else if (compareBidiLevel(order, cur.level, order[found].level)) {
+ if (cur.from != cur.to) bidiOther = found;
+ return i;
+ } else {
+ if (cur.from != cur.to) bidiOther = i;
+ return found;
+ }
+ }
+ }
+ return found;
+ }
+
+ function moveInLine(line, pos, dir, byUnit) {
+ if (!byUnit) return pos + dir;
+ do pos += dir;
+ while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
+ return pos;
+ }
+
+ // This is needed in order to move 'visually' through bi-directional
+ // text -- i.e., pressing left should make the cursor go left, even
+ // when in RTL text. The tricky part is the 'jumps', where RTL and
+ // LTR text touch each other. This often requires the cursor offset
+ // to move more than one unit, in order to visually move one unit.
+ function moveVisually(line, start, dir, byUnit) {
+ var bidi = getOrder(line);
+ if (!bidi) return moveLogically(line, start, dir, byUnit);
+ var pos = getBidiPartAt(bidi, start),
+ part = bidi[pos];
+ var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
+
+ for (;;) {
+ if (target > part.from && target < part.to) return target;
+ if (target == part.from || target == part.to) {
+ if (getBidiPartAt(bidi, target) == pos) return target;
+ part = bidi[(pos += dir)];
+ return dir > 0 == part.level % 2 ? part.to : part.from;
+ } else {
+ part = bidi[(pos += dir)];
+ if (!part) return null;
+ if (dir > 0 == part.level % 2)
+ target = moveInLine(line, part.to, -1, byUnit);
+ else target = moveInLine(line, part.from, 1, byUnit);
+ }
+ }
+ }
+
+ function moveLogically(line, start, dir, byUnit) {
+ var target = start + dir;
+ if (byUnit)
+ while (target > 0 && isExtendingChar(line.text.charAt(target)))
+ target += dir;
+ return target < 0 || target > line.text.length ? null : target;
+ }
+
+ // Bidirectional ordering algorithm
+ // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+ // that this (partially) implements.
+
+ // One-char codes used for character types:
+ // L (L): Left-to-Right
+ // R (R): Right-to-Left
+ // r (AL): Right-to-Left Arabic
+ // 1 (EN): European Number
+ // + (ES): European Number Separator
+ // % (ET): European Number Terminator
+ // n (AN): Arabic Number
+ // , (CS): Common Number Separator
+ // m (NSM): Non-Spacing Mark
+ // b (BN): Boundary Neutral
+ // s (B): Paragraph Separator
+ // t (S): Segment Separator
+ // w (WS): Whitespace
+ // N (ON): Other Neutrals
+
+ // Returns null if characters are ordered as they appear
+ // (left-to-right), or an array of sections ({from, to, level}
+ // objects) in the order in which they occur visually.
+ var bidiOrdering = (function () {
+ // Character types for codepoints 0 to 0xff
+ var lowTypes =
+ "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+ // Character types for codepoints 0x600 to 0x6ff
+ var arabicTypes =
+ "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
+ function charType(code) {
+ if (code <= 0xf7) return lowTypes.charAt(code);
+ else if (0x590 <= code && code <= 0x5f4) return "R";
+ else if (0x600 <= code && code <= 0x6ed)
+ return arabicTypes.charAt(code - 0x600);
+ else if (0x6ee <= code && code <= 0x8ac) return "r";
+ else if (0x2000 <= code && code <= 0x200b) return "w";
+ else if (code == 0x200c) return "b";
+ else return "L";
+ }
+
+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+ var isNeutral = /[stwN]/,
+ isStrong = /[LRr]/,
+ countsAsLeft = /[Lb1n]/,
+ countsAsNum = /[1n]/;
+ // Browsers seem to always treat the boundaries of block elements as being L.
+ var outerType = "L";
+
+ function BidiSpan(level, from, to) {
+ this.level = level;
+ this.from = from;
+ this.to = to;
+ }
+
+ return function (str) {
+ if (!bidiRE.test(str)) return false;
+ var len = str.length,
+ types = [];
+ for (var i = 0, type; i < len; ++i)
+ types.push((type = charType(str.charCodeAt(i))));
+
+ // W1. Examine each non-spacing mark (NSM) in the level run, and
+ // change the type of the NSM to the type of the previous
+ // character. If the NSM is at the start of the level run, it will
+ // get the type of sor.
+ for (var i = 0, prev = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "m") types[i] = prev;
+ else prev = type;
+ }
+
+ // W2. Search backwards from each instance of a European number
+ // until the first strong type (R, L, AL, or sor) is found. If an
+ // AL is found, change the type of the European number to Arabic
+ // number.
+ // W3. Change all ALs to R.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "1" && cur == "r") types[i] = "n";
+ else if (isStrong.test(type)) {
+ cur = type;
+ if (type == "r") types[i] = "R";
+ }
+ }
+
+ // W4. A single European separator between two European numbers
+ // changes to a European number. A single common separator between
+ // two numbers of the same type changes to that type.
+ for (var i = 1, prev = types[0]; i < len - 1; ++i) {
+ var type = types[i];
+ if (type == "+" && prev == "1" && types[i + 1] == "1") types[i] = "1";
+ else if (
+ type == "," &&
+ prev == types[i + 1] &&
+ (prev == "1" || prev == "n")
+ )
+ types[i] = prev;
+ prev = type;
+ }
+
+ // W5. A sequence of European terminators adjacent to European
+ // numbers changes to all European numbers.
+ // W6. Otherwise, separators and terminators change to Other
+ // Neutral.
+ for (var i = 0; i < len; ++i) {
+ var type = types[i];
+ if (type == ",") types[i] = "N";
+ else if (type == "%") {
+ for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
+ var replace =
+ (i && types[i - 1] == "!") || (end < len && types[end] == "1")
+ ? "1"
+ : "N";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // W7. Search backwards from each instance of a European number
+ // until the first strong type (R, L, or sor) is found. If an L is
+ // found, then change the type of the European number to L.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (cur == "L" && type == "1") types[i] = "L";
+ else if (isStrong.test(type)) cur = type;
+ }
+
+ // N1. A sequence of neutrals takes the direction of the
+ // surrounding strong text if the text on both sides has the same
+ // direction. European and Arabic numbers act as if they were R in
+ // terms of their influence on neutrals. Start-of-level-run (sor)
+ // and end-of-level-run (eor) are used at level run boundaries.
+ // N2. Any remaining neutrals take the embedding direction.
+ for (var i = 0; i < len; ++i) {
+ if (isNeutral.test(types[i])) {
+ for (
+ var end = i + 1;
+ end < len && isNeutral.test(types[end]);
+ ++end
+ ) {}
+ var before = (i ? types[i - 1] : outerType) == "L";
+ var after = (end < len ? types[end] : outerType) == "L";
+ var replace = before || after ? "L" : "R";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // Here we depart from the documented algorithm, in order to avoid
+ // building up an actual levels array. Since there are only three
+ // levels (0, 1, 2) in an implementation that doesn't take
+ // explicit embedding into account, we can build up the order on
+ // the fly, without following the level-based algorithm.
+ var order = [],
+ m;
+ for (var i = 0; i < len; ) {
+ if (countsAsLeft.test(types[i])) {
+ var start = i;
+ for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
+ order.push(new BidiSpan(0, start, i));
+ } else {
+ var pos = i,
+ at = order.length;
+ for (++i; i < len && types[i] != "L"; ++i) {}
+ for (var j = pos; j < i; ) {
+ if (countsAsNum.test(types[j])) {
+ if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
+ var nstart = j;
+ for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
+ order.splice(at, 0, new BidiSpan(2, nstart, j));
+ pos = j;
+ } else ++j;
+ }
+ if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
+ }
+ }
+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+ order[0].from = m[0].length;
+ order.unshift(new BidiSpan(0, 0, m[0].length));
+ }
+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+ lst(order).to -= m[0].length;
+ order.push(new BidiSpan(0, len - m[0].length, len));
+ }
+ if (order[0].level == 2)
+ order.unshift(new BidiSpan(1, order[0].to, order[0].to));
+ if (order[0].level != lst(order).level)
+ order.push(new BidiSpan(order[0].level, len, len));
+
+ return order;
+ };
+ })();
+
+ // THE END
+
+ CodeMirror.version = "5.7.0";
+
+ return CodeMirror;
+});
diff --git a/docs/parinfer-tester/assets/parinfer-codemirror.js b/docs/parinfer-tester/assets/parinfer-codemirror.js
new file mode 100644
index 0000000..b1fd5ac
--- /dev/null
+++ b/docs/parinfer-tester/assets/parinfer-codemirror.js
@@ -0,0 +1,733 @@
+//
+// Parinfer for CodeMirror 1.4.1
+//
+// Copyright 2017 © Shaun Lebron
+// MIT License
+//
+
+//------------------------------------------------------------------------------
+// JS Module Boilerplate
+//------------------------------------------------------------------------------
+
+(function (root, factory) {
+ if (typeof define === "function" && define.amd) {
+ define([], factory);
+ } else if (typeof module === "object" && module.exports) {
+ module.exports = factory();
+ } else {
+ root.parinferCodeMirror = factory();
+ }
+})(this, function () {
+ // start module anonymous scope
+ "use strict";
+
+ //------------------------------------------------------------------------------
+ // Constants
+ //------------------------------------------------------------------------------
+
+ // We attach our Parinfer state to this property on the CodeMirror instance.
+ var STATE_PROP = "__parinfer__";
+
+ var PAREN_MODE = "paren";
+ var INDENT_MODE = "indent";
+ var SMART_MODE = "smart";
+
+ var MODES = [PAREN_MODE, INDENT_MODE, SMART_MODE];
+
+ var CLASSNAME_ERROR = "parinfer-error";
+ var CLASSNAME_PARENTRAIL = "parinfer-paren-trail";
+ var CLASSNAME_LOCUS_PAREN = "parinfer-locus-paren";
+
+ var CLASSNAME_LOCUS_LAYER = "parinfer-locus";
+
+ //------------------------------------------------------------------------------
+ // State
+ // (`state` represents the parinfer state attached to a single CodeMirror editor)
+ //------------------------------------------------------------------------------
+
+ function initialState(cm, mode, options) {
+ return {
+ cm: cm,
+ mode: mode,
+ options: options,
+ enabled: false,
+ cursorTimeout: null,
+ monitorCursor: true,
+ prevCursorX: null,
+ prevCursorLine: null,
+ callbackCursor: null,
+ callbackChanges: null,
+ };
+ }
+
+ //------------------------------------------------------------------------------
+ // Errors
+ //------------------------------------------------------------------------------
+
+ function error(msg) {
+ return "parinferCodeMirror: " + msg;
+ }
+
+ function ensureMode(mode) {
+ if (MODES.indexOf(mode) === -1) {
+ throw error(
+ 'Mode "' +
+ mode +
+ '" is invalid. ' +
+ "Must be one of: " +
+ MODES.join(",")
+ );
+ }
+ }
+
+ function ensureState(cm) {
+ var state = cm[STATE_PROP];
+ if (!state) {
+ throw error(
+ "You must call parinferCodeMirror.init(cm) on a CodeMirror instance " +
+ "before you can use the rest of the API."
+ );
+ }
+ return state;
+ }
+
+ //------------------------------------------------------------------------------
+ // Data conversion
+ //------------------------------------------------------------------------------
+
+ function convertChanges(changes) {
+ return changes.map(function (change) {
+ return {
+ x: change.from.ch,
+ lineNo: change.from.line,
+ oldText: change.removed.join("\n"),
+ newText: change.text.join("\n"),
+ };
+ });
+ }
+
+ //------------------------------------------------------------------------------
+ // Markers
+ //------------------------------------------------------------------------------
+
+ function clearMarks(cm, className) {
+ var i;
+ var marks = cm.getAllMarks();
+ for (i = 0; i < marks.length; i++) {
+ if (marks[i].className === className) {
+ marks[i].clear();
+ }
+ }
+ }
+
+ function clearAllMarks(cm) {
+ clearMarks(cm, CLASSNAME_ERROR);
+ clearMarks(cm, CLASSNAME_PARENTRAIL);
+ }
+
+ function addMark(cm, lineNo, x0, x1, className) {
+ var from = { line: lineNo, ch: x0 };
+ var to = { line: lineNo, ch: x1 };
+ cm.markText(from, to, { className: className });
+ }
+
+ function updateErrorMarks(cm, error) {
+ clearMarks(cm, CLASSNAME_ERROR);
+ if (error) {
+ addMark(cm, error.lineNo, error.x, error.x + 1, CLASSNAME_ERROR);
+ if (error.extra) {
+ addMark(
+ cm,
+ error.extra.lineNo,
+ error.extra.x,
+ error.extra.x + 1,
+ CLASSNAME_ERROR
+ );
+ }
+ }
+ }
+
+ function updateParenTrailMarks(cm, parenTrails) {
+ clearMarks(cm, CLASSNAME_PARENTRAIL);
+ if (parenTrails) {
+ var i, trail;
+ for (i = 0; i < parenTrails.length; i++) {
+ trail = parenTrails[i];
+ addMark(
+ cm,
+ trail.lineNo,
+ trail.startX,
+ trail.endX,
+ CLASSNAME_PARENTRAIL
+ );
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Tab Stops
+ //------------------------------------------------------------------------------
+
+ function getSelectionStartLine(cm) {
+ var selection = cm.listSelections()[0];
+ // head and anchor are reversed sometimes
+ return Math.min(selection.head.line, selection.anchor.line);
+ }
+
+ function expandTabStops(tabStops) {
+ if (!tabStops) {
+ return null;
+ }
+ var xs = [];
+ var i,
+ stop,
+ prevX = -1;
+ for (i = 0; i < tabStops.length; i++) {
+ stop = tabStops[i];
+ if (prevX >= stop.x) {
+ xs.pop();
+ }
+ xs.push(stop.x);
+ xs.push(stop.x + (stop.ch === "(" ? 2 : 1));
+ if (stop.argX != null) {
+ xs.push(stop.argX);
+ }
+ }
+ return xs;
+ }
+
+ function nextStop(stops, x, dx) {
+ if (!stops) {
+ return null;
+ }
+ var i, stop, right, left;
+ for (i = 0; i < stops.length; i++) {
+ stop = stops[i];
+ if (x < stop) {
+ right = stop;
+ break;
+ }
+ if (x > stop) {
+ left = stop;
+ }
+ }
+ if (dx === -1) {
+ return left;
+ }
+ if (dx === 1) {
+ return right;
+ }
+ }
+
+ function getIndent(cm, lineNo) {
+ var line = cm.getLine(lineNo);
+ var i;
+ for (i = 0; i < line.length; i++) {
+ if (line[i] !== " ") {
+ return i;
+ }
+ }
+ return null;
+ }
+
+ function indentSelection(cm, dx, stops) {
+ // Indent whole Selection
+ var lineNo = getSelectionStartLine(cm);
+ var x = getIndent(cm, lineNo);
+ var nextX = nextStop(stops, x, dx);
+ if (nextX == null) {
+ nextX = Math.max(0, x + dx * 2);
+ }
+ cm.indentSelection(nextX - x);
+ }
+
+ function indentLine(cm, lineNo, delta) {
+ var text = cm.getDoc().getLine(lineNo);
+
+ // cm.indentLine does not indent empty lines
+ if (text.trim() !== "") {
+ cm.indentLine(lineNo, delta);
+ return;
+ }
+
+ if (delta > 0) {
+ var spaces = Array(delta + 1).join(" ");
+ cm.replaceSelection(spaces);
+ } else {
+ var x = cm.getCursor().ch;
+ cm.replaceRange(
+ "",
+ { line: lineNo, ch: x + delta },
+ { line: lineNo, ch: x },
+ "+indent"
+ );
+ }
+ }
+
+ function indentAtCursor(cm, dx, stops) {
+ // Indent single line at cursor
+ var cursor = cm.getCursor();
+ var lineNo = cursor.line;
+ var x = cursor.ch;
+ var indent = getIndent(cm, cursor.line);
+
+ var stop = nextStop(stops, x, dx);
+ var useStops = indent == null || x === indent;
+ var nextX = stop != null && useStops ? stop : Math.max(0, x + dx * 2);
+
+ if (indent != null && indent < x && x < nextX) {
+ var spaces = Array(nextX - x + 1).join(" ");
+ cm.replaceSelection(spaces);
+ } else {
+ indentLine(cm, lineNo, nextX - x);
+ }
+ }
+
+ function onTab(cm, dx) {
+ var hasSelection = cm.somethingSelected();
+ var state = ensureState(cm);
+ var stops = expandTabStops(state.tabStops);
+
+ if (hasSelection) {
+ indentSelection(cm, dx, stops);
+ } else {
+ indentAtCursor(cm, dx, stops);
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Locus/Guides layer
+ //------------------------------------------------------------------------------
+
+ function getLayerContainer(cm) {
+ var wrapper = cm.getWrapperElement();
+ var lines = wrapper.querySelector(".CodeMirror-lines");
+ var container = lines.parentNode;
+ return container;
+ }
+
+ function parenSelected(paren, sel) {
+ return sel.contains({ line: paren.lineNo, ch: paren.x }) !== -1;
+ }
+
+ function pointRevealsParenTrail(trail, pos) {
+ return (
+ pos.line === trail.lineNo &&
+ trail.startX <= pos.ch /* && cursor.ch <= trail.endX */
+ );
+ }
+
+ function hideParen(cm, paren) {
+ var sel = cm.getDoc().sel;
+ var sel0 = sel.ranges[0];
+ var shouldShowCloser =
+ paren.lineNo === paren.closer.lineNo ||
+ !paren.closer.trail ||
+ pointRevealsParenTrail(paren.closer.trail, sel0.anchor) ||
+ pointRevealsParenTrail(paren.closer.trail, sel0.head) ||
+ parenSelected(paren.closer, sel);
+
+ if (!shouldShowCloser) {
+ addMark(
+ cm,
+ paren.closer.lineNo,
+ paren.closer.x,
+ paren.closer.x + 1,
+ CLASSNAME_LOCUS_PAREN
+ );
+ }
+ hideParens(cm, paren.children);
+ }
+
+ function hideParens(cm, parens) {
+ var i;
+ for (i = 0; i < parens.length; i++) {
+ hideParen(cm, parens[i]);
+ }
+ }
+
+ function charPos(cm, paren) {
+ var p = cm.charCoords({ line: paren.lineNo, ch: paren.x }, "local");
+ var w = p.right - p.left;
+ return {
+ midx: p.left + w / 2,
+ right: p.right,
+ left: p.left,
+ top: p.top,
+ bottom: p.bottom,
+ };
+ }
+
+ function getRightBound(cm, startLine, endLine) {
+ var doc = cm.getDoc();
+ var maxWidth = 0;
+ var maxLineNo = 0;
+ var i;
+ for (i = startLine; i <= endLine; i++) {
+ var line = doc.getLine(i);
+ if (line.length > maxWidth) {
+ maxWidth = line.length;
+ maxLineNo = i;
+ }
+ }
+ var wall = charPos(cm, { lineNo: maxLineNo, x: maxWidth });
+ return wall.right;
+ }
+
+ function addBox(cm, paren) {
+ var layer = cm[STATE_PROP].layer;
+ var paper = layer.paper;
+ var charW = layer.charW;
+ var charH = layer.charH;
+
+ var open = charPos(cm, paren);
+ var close = charPos(cm, paren.closer);
+
+ var r = 4;
+
+ if (paren.closer.trail && paren.lineNo !== paren.closer.lineNo) {
+ switch (layer.type) {
+ case "guides":
+ paper.path(
+ ["M", open.midx, open.bottom, "V", close.bottom].join(" ")
+ );
+ break;
+ case "locus":
+ var right = getRightBound(cm, paren.lineNo, paren.closer.lineNo);
+ paper.path(
+ [
+ "M",
+ open.midx,
+ open.top + r,
+ "A",
+ r,
+ r,
+ 0,
+ 0,
+ 1,
+ open.midx + r,
+ open.top,
+ "H",
+ right - r,
+ "A",
+ r,
+ r,
+ 0,
+ 0,
+ 1,
+ right,
+ open.top + r,
+ "V",
+ close.bottom,
+ "H",
+ open.midx,
+ "V",
+ open.bottom,
+ ].join(" ")
+ );
+ break;
+ }
+ }
+
+ addBoxes(cm, paren.children);
+ }
+
+ function addBoxes(cm, parens) {
+ var i;
+ for (i = 0; i < parens.length; i++) {
+ addBox(cm, parens[i]);
+ }
+ }
+
+ function addLayer(cm, type) {
+ var layer = cm[STATE_PROP].layer;
+ layer.type = type;
+
+ var el = document.createElement("div");
+ el.style.position = "absolute";
+ el.style.left = "0";
+ el.style.top = "0";
+ el.style["z-index"] = 100;
+ el.className = CLASSNAME_LOCUS_LAYER;
+
+ layer.el = el;
+ layer.container.appendChild(el);
+
+ var pixelW = layer.container.clientWidth;
+ var pixelH = layer.container.clientHeight;
+
+ layer.paper = Raphael(el, pixelW, pixelH);
+ }
+
+ function clearLayer(cm) {
+ var layer = cm[STATE_PROP].layer;
+ if (layer && layer.el) {
+ layer.container.removeChild(layer.el);
+ }
+ }
+
+ function updateLocusLayer(cm, parens) {
+ clearMarks(cm, CLASSNAME_LOCUS_PAREN);
+ if (parens) {
+ hideParens(cm, parens);
+ clearLayer(cm);
+ // addLayer(cm, 'locus'); // don't draw boxes, just draw guides
+ addLayer(cm, "guides");
+ addBoxes(cm, parens);
+ }
+ }
+
+ function updateGuidesLayer(cm, parens) {
+ if (parens) {
+ clearLayer(cm);
+ addLayer(cm, "guides");
+ addBoxes(cm, parens);
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Text Correction
+ //------------------------------------------------------------------------------
+
+ // If `changes` is missing, then only the cursor position has changed.
+ function fixText(state, changes) {
+ // Get editor data
+ var cm = state.cm;
+ var text = cm.getValue();
+ var hasSelection = cm.somethingSelected();
+ var selections = cm.listSelections();
+ var cursor = cm.getCursor();
+ var scroller = cm.getScrollerElement();
+
+ // Create options
+ var options = {
+ cursorLine: cursor.line,
+ cursorX: cursor.ch,
+ prevCursorLine: state.prevCursorLine,
+ prevCursorX: state.prevCursorX,
+ };
+ if (hasSelection) {
+ options.selectionStartLine = getSelectionStartLine(cm);
+ }
+ if (state.options) {
+ var p;
+ for (p in state.options) {
+ if (state.options.hasOwnProperty(p)) {
+ options[p] = state.options[p];
+ }
+ }
+ }
+ if (changes) {
+ options.changes = convertChanges(changes);
+ }
+
+ var locus = state.options && state.options.locus;
+ var guides = state.options && state.options.guides;
+
+ if (locus || guides) {
+ delete options.locus;
+ delete options.guides;
+ options.returnParens = true;
+ }
+
+ // Run Parinfer
+ var result;
+ var mode = SMART_MODE;
+ let output = `Mode: ${mode}\n`;
+
+ output += `Before Text:\n${text}\n\n`;
+ output += `Input Options:\n${JSON.stringify(options, null, 2)}\n\n`;
+ switch (mode) {
+ case INDENT_MODE:
+ result = parinfer.indentMode(text, options);
+ break;
+ case PAREN_MODE:
+ result = parinfer.parenMode(text, options);
+ break;
+ case SMART_MODE:
+ result = parinfer.smartMode(text, options);
+ break;
+ default:
+ ensureMode(mode);
+ }
+
+ output += `After Text:\n${result.text}\n\n`;
+ output += `Result:\n${JSON.stringify(result, null, 2)}\n\n`;
+ document.getElementById("output").innerHTML = output;
+
+ // Remember the paren tree.
+ state.parens = result.parens;
+
+ // Remember tab stops for smart tabbing.
+ state.tabStops = result.tabStops;
+
+ if (text !== result.text) {
+ // Backup history
+ var hist = cm.getHistory();
+
+ // Update text
+ cm.setValue(result.text);
+
+ // Update cursor and selection
+ state.monitorCursor = false;
+ if (hasSelection) {
+ cm.setSelections(selections);
+ } else {
+ cm.setCursor(result.cursorLine, result.cursorX);
+ }
+
+ // Restore history to avoid pushing our edits to the history stack.
+ cm.setHistory(hist);
+
+ setTimeout(function () {
+ state.monitorCursor = true;
+ }, 0);
+
+ // Update scroll position
+ cm.scrollTo(scroller.scrollLeft, scroller.scrollTop);
+ }
+
+ // Clear or add new marks
+ updateErrorMarks(cm, result.error);
+ updateParenTrailMarks(cm, result.parenTrails);
+
+ // Remember the cursor position for next time
+ state.prevCursorLine = result.cursorLine;
+ state.prevCursorX = result.cursorX;
+
+ if (locus) {
+ updateLocusLayer(cm, result.parens);
+ } else if (guides) {
+ updateGuidesLayer(cm, result.parens);
+ }
+
+ // Re-run with original mode if code was finally fixed in Paren Mode.
+ if (state.fixMode && result.success) {
+ state.fixMode = false;
+ return fixText(state, changes);
+ }
+
+ return result.success;
+ }
+
+ //------------------------------------------------------------------------------
+ // CodeMirror Integration
+ //------------------------------------------------------------------------------
+
+ function onCursorChange(state) {
+ clearTimeout(state.cursorTimeout);
+ if (state.monitorCursor) {
+ state.cursorTimeout = setTimeout(function () {
+ fixText(state);
+ }, 0);
+ }
+ }
+
+ function onTextChanges(state, changes) {
+ clearTimeout(state.cursorTimeout);
+ var origin = changes[0].origin;
+ if (origin !== "setValue") {
+ fixText(state, changes);
+ }
+ }
+
+ function on(state) {
+ if (state.enabled) {
+ return;
+ }
+ state.callbackCursor = function (cm) {
+ onCursorChange(state);
+ };
+ state.callbackChanges = function (cm, changes) {
+ onTextChanges(state, changes);
+ };
+ var cm = state.cm;
+ cm.on("cursorActivity", state.callbackCursor);
+ cm.on("changes", state.callbackChanges);
+ state.parinferKeys = {
+ Tab: function (cm) {
+ onTab(cm, 1);
+ },
+ "Shift-Tab": function (cm) {
+ onTab(cm, -1);
+ },
+ };
+ cm.addKeyMap(state.parinferKeys);
+ state.enabled = true;
+ }
+
+ function off(state) {
+ if (!state.enabled) {
+ return;
+ }
+ var cm = state.cm;
+ clearAllMarks(cm);
+ cm.off("cursorActivity", state.callbackCursor);
+ cm.off("changes", state.callbackChanges);
+ cm.removeKeyMap(state.parinferKeys);
+ state.enabled = false;
+ }
+
+ //------------------------------------------------------------------------------
+ // Public API
+ //------------------------------------------------------------------------------
+
+ function init(cm, mode, options) {
+ var state = cm[STATE_PROP];
+ if (state) {
+ throw error("init has already been called on this CodeMirror instance");
+ }
+
+ mode = mode || SMART_MODE;
+ ensureMode(mode);
+
+ state = initialState(cm, mode, options);
+ cm[STATE_PROP] = state;
+
+ state.layer = {
+ container: getLayerContainer(cm),
+ };
+ return enable(cm);
+ }
+
+ function enable(cm) {
+ var state = ensureState(cm);
+
+ // preprocess text to keep Parinfer from changing code structure
+ if (state.mode !== PAREN_MODE) {
+ state.fixMode = true;
+ }
+
+ on(state);
+ return fixText(state);
+ }
+
+ function disable(cm) {
+ var state = ensureState(cm);
+ off(state);
+ }
+
+ function setMode(cm, mode) {
+ var state = ensureState(cm);
+ ensureMode(mode);
+ state.mode = mode;
+ return fixText(state);
+ }
+
+ function setOptions(cm, options) {
+ var state = ensureState(cm);
+ state.options = options;
+ return fixText(state);
+ }
+
+ var API = {
+ version: "1.4.1",
+ init: init,
+ enable: enable,
+ disable: disable,
+ setMode: setMode,
+ setOptions: setOptions,
+ };
+
+ return API;
+}); // end module anonymous scope
diff --git a/docs/parinfer-tester/assets/parinfer.js b/docs/parinfer-tester/assets/parinfer.js
new file mode 100644
index 0000000..e8a0feb
--- /dev/null
+++ b/docs/parinfer-tester/assets/parinfer.js
@@ -0,0 +1,1622 @@
+//
+// Parinfer 3.12.0
+//
+// Copyright 2015-2017 © Shaun Lebron
+// MIT License
+//
+// Home Page: http://shaunlebron.github.io/parinfer/
+// GitHub: https://github.com/shaunlebron/parinfer
+//
+// For DOCUMENTATION on this file, please see `doc/code.md`.
+// Use `sync.sh` to keep the function/var links in `doc/code.md` accurate.
+//
+
+//------------------------------------------------------------------------------
+// JS Module Boilerplate
+//------------------------------------------------------------------------------
+
+(function (root, factory) {
+ if (typeof define === "function" && define.amd) {
+ define([], factory);
+ } else if (typeof module === "object" && module.exports) {
+ module.exports = factory();
+ } else {
+ root.parinfer = factory();
+ }
+})(this, function () {
+ // start module anonymous scope
+ "use strict";
+
+ //------------------------------------------------------------------------------
+ // Constants / Predicates
+ //------------------------------------------------------------------------------
+
+ // NOTE: this is a performance hack
+ // The main result object uses a lot of "unsigned integer or null" values.
+ // Using a negative integer is faster than actual null because it cuts down on
+ // type coercion overhead.
+ var UINT_NULL = -999;
+
+ var INDENT_MODE = "INDENT_MODE",
+ PAREN_MODE = "PAREN_MODE";
+
+ var BACKSLASH = "\\",
+ BLANK_SPACE = " ",
+ DOUBLE_SPACE = " ",
+ DOUBLE_QUOTE = '"',
+ NEWLINE = "\n",
+ SEMICOLON = ";",
+ TAB = "\t";
+
+ var LINE_ENDING_REGEX = /\r?\n/;
+
+ var MATCH_PAREN = {
+ "{": "}",
+ "}": "{",
+ "[": "]",
+ "]": "[",
+ "(": ")",
+ ")": "(",
+ };
+
+ // toggle this to check the asserts during development
+ var RUN_ASSERTS = false;
+
+ function isBoolean(x) {
+ return typeof x === "boolean";
+ }
+
+ function isArray(x) {
+ return Array.isArray(x);
+ }
+
+ function isInteger(x) {
+ return typeof x === "number" && isFinite(x) && Math.floor(x) === x;
+ }
+
+ //------------------------------------------------------------------------------
+ // Options Structure
+ //------------------------------------------------------------------------------
+
+ function transformChange(change) {
+ if (!change) {
+ return undefined;
+ }
+
+ var newLines = change.newText.split(LINE_ENDING_REGEX);
+ var oldLines = change.oldText.split(LINE_ENDING_REGEX);
+
+ // single line case:
+ // (defn foo| [])
+ // ^ newEndX, newEndLineNo
+ // +++
+
+ // multi line case:
+ // (defn foo
+ // ++++
+ // "docstring."
+ // ++++++++++++++++
+ // |[])
+ // ++^ newEndX, newEndLineNo
+
+ var lastOldLineLen = oldLines[oldLines.length - 1].length;
+ var lastNewLineLen = newLines[newLines.length - 1].length;
+
+ var oldEndX = (oldLines.length === 1 ? change.x : 0) + lastOldLineLen;
+ var newEndX = (newLines.length === 1 ? change.x : 0) + lastNewLineLen;
+ var newEndLineNo = change.lineNo + (newLines.length - 1);
+
+ return {
+ x: change.x,
+ lineNo: change.lineNo,
+ oldText: change.oldText,
+ newText: change.newText,
+
+ oldEndX: oldEndX,
+ newEndX: newEndX,
+ newEndLineNo: newEndLineNo,
+
+ lookupLineNo: newEndLineNo,
+ lookupX: newEndX,
+ };
+ }
+
+ function transformChanges(changes) {
+ if (changes.length === 0) {
+ return null;
+ }
+ var lines = {};
+ var line, i, change;
+ for (i = 0; i < changes.length; i++) {
+ change = transformChange(changes[i]);
+ line = lines[change.lookupLineNo];
+ if (!line) {
+ line = lines[change.lookupLineNo] = {};
+ }
+ line[change.lookupX] = change;
+ }
+ return lines;
+ }
+
+ function parseOptions(options) {
+ options = options || {};
+ return {
+ cursorX: options.cursorX,
+ cursorLine: options.cursorLine,
+ prevCursorX: options.prevCursorX,
+ prevCursorLine: options.prevCursorLine,
+ selectionStartLine: options.selectionStartLine,
+ changes: options.changes,
+ partialResult: options.partialResult,
+ forceBalance: options.forceBalance,
+ returnParens: options.returnParens,
+ };
+ }
+
+ //------------------------------------------------------------------------------
+ // Result Structure
+ //------------------------------------------------------------------------------
+
+ // This represents the running result. As we scan through each character
+ // of a given text, we mutate this structure to update the state of our
+ // system.
+
+ function initialParenTrail() {
+ return {
+ lineNo: UINT_NULL, // [integer] - line number of the last parsed paren trail
+ startX: UINT_NULL, // [integer] - x position of first paren in this range
+ endX: UINT_NULL, // [integer] - x position after the last paren in this range
+ openers: [], // [array of stack elements] - corresponding open-paren for each close-paren in this range
+ clamped: {
+ startX: UINT_NULL, // startX before paren trail was clamped
+ endX: UINT_NULL, // endX before paren trail was clamped
+ openers: [], // openers that were cut out after paren trail was clamped
+ },
+ };
+ }
+
+ function getInitialResult(text, options, mode, smart) {
+ var result = {
+ mode: mode, // [enum] - current processing mode (INDENT_MODE or PAREN_MODE)
+ smart: smart, // [boolean] - smart mode attempts special user-friendly behavior
+
+ origText: text, // [string] - original text
+ origCursorX: UINT_NULL, // [integer] - original cursorX option
+ origCursorLine: UINT_NULL, // [integer] - original cursorLine option
+
+ // [string array] - input lines that we process line-by-line, char-by-char
+ inputLines: text.split(LINE_ENDING_REGEX),
+ inputLineNo: -1, // [integer] - the current input line number
+ inputX: -1, // [integer] - the current input x position of the current character (ch)
+
+ lines: [], // [string array] - output lines (with corrected parens or indentation)
+ lineNo: -1, // [integer] - output line number we are on
+ ch: "", // [string] - character we are processing (can be changed to indicate a replacement)
+ x: 0, // [integer] - output x position of the current character (ch)
+ indentX: UINT_NULL, // [integer] - x position of the indentation point if present
+
+ parenStack: [], // We track where we are in the Lisp tree by keeping a stack (array) of open-parens.
+ // Stack elements are objects containing keys {ch, x, lineNo, indentDelta}
+ // whose values are the same as those described here in this result structure.
+
+ tabStops: [], // In Indent Mode, it is useful for editors to snap a line's indentation
+ // to certain critical points. Thus, we have a `tabStops` array of objects containing
+ // keys {ch, x, lineNo, argX}, which is just the state of the `parenStack` at the cursor line.
+
+ parenTrail: initialParenTrail(), // the range of parens at the end of a line
+
+ parenTrails: [], // [array of {lineNo, startX, endX}] - all non-empty parenTrails to be returned
+
+ returnParens: false, // [boolean] - determines if we return `parens` described below
+ parens: [], // [array of {lineNo, x, closer, children}] - paren tree if `returnParens` is true
+
+ cursorX: UINT_NULL, // [integer] - x position of the cursor
+ cursorLine: UINT_NULL, // [integer] - line number of the cursor
+ prevCursorX: UINT_NULL, // [integer] - x position of the previous cursor
+ prevCursorLine: UINT_NULL, // [integer] - line number of the previous cursor
+
+ selectionStartLine: UINT_NULL, // [integer] - line number of the current selection starting point
+
+ changes: null, // [object] - mapping change.key to a change object (please see `transformChange` for object structure)
+
+ isInCode: true, // [boolean] - indicates if we are currently in "code space" (not string or comment)
+ isEscaping: false, // [boolean] - indicates if the next character will be escaped (e.g. `\c`). This may be inside string, comment, or code.
+ isEscaped: false, // [boolean] - indicates if the current character is escaped (e.g. `\c`). This may be inside string, comment, or code.
+ isInStr: false, // [boolean] - indicates if we are currently inside a string
+ isInComment: false, // [boolean] - indicates if we are currently inside a comment
+ commentX: UINT_NULL, // [integer] - x position of the start of comment on current line (if any)
+
+ quoteDanger: false, // [boolean] - indicates if quotes are imbalanced inside of a comment (dangerous)
+ trackingIndent: false, // [boolean] - are we looking for the indentation point of the current line?
+ skipChar: false, // [boolean] - should we skip the processing of the current character?
+ success: false, // [boolean] - was the input properly formatted enough to create a valid result?
+ partialResult: false, // [boolean] - should we return a partial result when an error occurs?
+ forceBalance: false, // [boolean] - should indent mode aggressively enforce paren balance?
+
+ maxIndent: UINT_NULL, // [integer] - maximum allowed indentation of subsequent lines in Paren Mode
+ indentDelta: 0, // [integer] - how far indentation was shifted by Paren Mode
+ // (preserves relative indentation of nested expressions)
+
+ trackingArgTabStop: null, // [string] - enum to track how close we are to the first-arg tabStop in a list
+ // For example a tabStop occurs at `bar` below:
+ //
+ // ` (foo bar`
+ // 00011112222000 <-- state after processing char (enums below)
+ //
+ // 0 null => not searching
+ // 1 'space' => searching for next space
+ // 2 'arg' => searching for arg
+ //
+ // (We create the tabStop when the change from 2->0 happens.)
+ //
+
+ error: {
+ // if 'success' is false, return this error to the user
+ name: null, // [string] - Parinfer's unique name for this error
+ message: null, // [string] - error message to display
+ lineNo: null, // [integer] - line number of error
+ x: null, // [integer] - start x position of error
+ extra: {
+ name: null,
+ lineNo: null,
+ x: null,
+ },
+ },
+ errorPosCache: {}, // [object] - maps error name to a potential error position
+ };
+
+ // Make sure no new properties are added to the result, for type safety.
+ // (uncomment only when debugging, since it incurs a perf penalty)
+ // Object.preventExtensions(result);
+ // Object.preventExtensions(result.parenTrail);
+
+ // merge options if they are valid
+ if (options) {
+ if (isInteger(options.cursorX)) {
+ result.cursorX = options.cursorX;
+ result.origCursorX = options.cursorX;
+ }
+ if (isInteger(options.cursorLine)) {
+ result.cursorLine = options.cursorLine;
+ result.origCursorLine = options.cursorLine;
+ }
+ if (isInteger(options.prevCursorX)) {
+ result.prevCursorX = options.prevCursorX;
+ }
+ if (isInteger(options.prevCursorLine)) {
+ result.prevCursorLine = options.prevCursorLine;
+ }
+ if (isInteger(options.selectionStartLine)) {
+ result.selectionStartLine = options.selectionStartLine;
+ }
+ if (isArray(options.changes)) {
+ result.changes = transformChanges(options.changes);
+ }
+ if (isBoolean(options.partialResult)) {
+ result.partialResult = options.partialResult;
+ }
+ if (isBoolean(options.forceBalance)) {
+ result.forceBalance = options.forceBalance;
+ }
+ if (isBoolean(options.returnParens)) {
+ result.returnParens = options.returnParens;
+ }
+ }
+
+ return result;
+ }
+
+ //------------------------------------------------------------------------------
+ // Possible Errors
+ //------------------------------------------------------------------------------
+
+ // `result.error.name` is set to any of these
+ var ERROR_QUOTE_DANGER = "quote-danger";
+ var ERROR_EOL_BACKSLASH = "eol-backslash";
+ var ERROR_UNCLOSED_QUOTE = "unclosed-quote";
+ var ERROR_UNCLOSED_PAREN = "unclosed-paren";
+ var ERROR_UNMATCHED_CLOSE_PAREN = "unmatched-close-paren";
+ var ERROR_UNMATCHED_OPEN_PAREN = "unmatched-open-paren";
+ var ERROR_LEADING_CLOSE_PAREN = "leading-close-paren";
+ var ERROR_UNHANDLED = "unhandled";
+
+ var errorMessages = {};
+ errorMessages[ERROR_QUOTE_DANGER] =
+ "Quotes must balanced inside comment blocks.";
+ errorMessages[ERROR_EOL_BACKSLASH] =
+ "Line cannot end in a hanging backslash.";
+ errorMessages[ERROR_UNCLOSED_QUOTE] = "String is missing a closing quote.";
+ errorMessages[ERROR_UNCLOSED_PAREN] = "Unclosed open-paren.";
+ errorMessages[ERROR_UNMATCHED_CLOSE_PAREN] = "Unmatched close-paren.";
+ errorMessages[ERROR_UNMATCHED_OPEN_PAREN] = "Unmatched open-paren.";
+ errorMessages[ERROR_LEADING_CLOSE_PAREN] =
+ "Line cannot lead with a close-paren.";
+ errorMessages[ERROR_UNHANDLED] = "Unhandled error.";
+
+ function cacheErrorPos(result, errorName) {
+ var e = {
+ lineNo: result.lineNo,
+ x: result.x,
+ inputLineNo: result.inputLineNo,
+ inputX: result.inputX,
+ };
+ result.errorPosCache[errorName] = e;
+ return e;
+ }
+
+ function error(result, name) {
+ var cache = result.errorPosCache[name];
+
+ var keyLineNo = result.partialResult ? "lineNo" : "inputLineNo";
+ var keyX = result.partialResult ? "x" : "inputX";
+
+ var e = {
+ parinferError: true,
+ name: name,
+ message: errorMessages[name],
+ lineNo: cache ? cache[keyLineNo] : result[keyLineNo],
+ x: cache ? cache[keyX] : result[keyX],
+ };
+ var opener = peek(result.parenStack, 0);
+
+ if (name === ERROR_UNMATCHED_CLOSE_PAREN) {
+ // extra error info for locating the open-paren that it should've matched
+ cache = result.errorPosCache[ERROR_UNMATCHED_OPEN_PAREN];
+ if (cache || opener) {
+ e.extra = {
+ name: ERROR_UNMATCHED_OPEN_PAREN,
+ lineNo: cache ? cache[keyLineNo] : opener[keyLineNo],
+ x: cache ? cache[keyX] : opener[keyX],
+ };
+ }
+ } else if (name === ERROR_UNCLOSED_PAREN) {
+ e.lineNo = opener[keyLineNo];
+ e.x = opener[keyX];
+ }
+ return e;
+ }
+
+ //------------------------------------------------------------------------------
+ // String Operations
+ //------------------------------------------------------------------------------
+
+ function replaceWithinString(orig, start, end, replace) {
+ return orig.substring(0, start) + replace + orig.substring(end);
+ }
+
+ if (RUN_ASSERTS) {
+ console.assert(replaceWithinString("aaa", 0, 2, "") === "a");
+ console.assert(replaceWithinString("aaa", 0, 1, "b") === "baa");
+ console.assert(replaceWithinString("aaa", 0, 2, "b") === "ba");
+ }
+
+ function repeatString(text, n) {
+ var i;
+ var result = "";
+ for (i = 0; i < n; i++) {
+ result += text;
+ }
+ return result;
+ }
+
+ if (RUN_ASSERTS) {
+ console.assert(repeatString("a", 2) === "aa");
+ console.assert(repeatString("aa", 3) === "aaaaaa");
+ console.assert(repeatString("aa", 0) === "");
+ console.assert(repeatString("", 0) === "");
+ console.assert(repeatString("", 5) === "");
+ }
+
+ function getLineEnding(text) {
+ // NOTE: We assume that if the CR char "\r" is used anywhere,
+ // then we should use CRLF line-endings after every line.
+ var i = text.search("\r");
+ if (i !== -1) {
+ return "\r\n";
+ }
+ return "\n";
+ }
+
+ //------------------------------------------------------------------------------
+ // Line operations
+ //------------------------------------------------------------------------------
+
+ function isCursorAffected(result, start, end) {
+ if (result.cursorX === start && result.cursorX === end) {
+ return result.cursorX === 0;
+ }
+ return result.cursorX >= end;
+ }
+
+ function shiftCursorOnEdit(result, lineNo, start, end, replace) {
+ var oldLength = end - start;
+ var newLength = replace.length;
+ var dx = newLength - oldLength;
+
+ if (
+ dx !== 0 &&
+ result.cursorLine === lineNo &&
+ result.cursorX !== UINT_NULL &&
+ isCursorAffected(result, start, end)
+ ) {
+ result.cursorX += dx;
+ }
+ }
+
+ function replaceWithinLine(result, lineNo, start, end, replace) {
+ var line = result.lines[lineNo];
+ var newLine = replaceWithinString(line, start, end, replace);
+ result.lines[lineNo] = newLine;
+
+ shiftCursorOnEdit(result, lineNo, start, end, replace);
+ }
+
+ function insertWithinLine(result, lineNo, idx, insert) {
+ replaceWithinLine(result, lineNo, idx, idx, insert);
+ }
+
+ function initLine(result) {
+ result.x = 0;
+ result.lineNo++;
+
+ // reset line-specific state
+ result.indentX = UINT_NULL;
+ result.commentX = UINT_NULL;
+ result.indentDelta = 0;
+ delete result.errorPosCache[ERROR_UNMATCHED_CLOSE_PAREN];
+ delete result.errorPosCache[ERROR_UNMATCHED_OPEN_PAREN];
+ delete result.errorPosCache[ERROR_LEADING_CLOSE_PAREN];
+
+ result.trackingArgTabStop = null;
+ result.trackingIndent = !result.isInStr;
+ }
+
+ // if the current character has changed, commit its change to the current line.
+ function commitChar(result, origCh) {
+ var ch = result.ch;
+ if (origCh !== ch) {
+ replaceWithinLine(
+ result,
+ result.lineNo,
+ result.x,
+ result.x + origCh.length,
+ ch
+ );
+ result.indentDelta -= origCh.length - ch.length;
+ }
+ result.x += ch.length;
+ }
+
+ //------------------------------------------------------------------------------
+ // Misc Utils
+ //------------------------------------------------------------------------------
+
+ function clamp(val, minN, maxN) {
+ if (minN !== UINT_NULL) {
+ val = Math.max(minN, val);
+ }
+ if (maxN !== UINT_NULL) {
+ val = Math.min(maxN, val);
+ }
+ return val;
+ }
+
+ if (RUN_ASSERTS) {
+ console.assert(clamp(1, 3, 5) === 3);
+ console.assert(clamp(9, 3, 5) === 5);
+ console.assert(clamp(1, 3, UINT_NULL) === 3);
+ console.assert(clamp(5, 3, UINT_NULL) === 5);
+ console.assert(clamp(1, UINT_NULL, 5) === 1);
+ console.assert(clamp(9, UINT_NULL, 5) === 5);
+ console.assert(clamp(1, UINT_NULL, UINT_NULL) === 1);
+ }
+
+ function peek(arr, idxFromBack) {
+ var maxIdx = arr.length - 1;
+ if (idxFromBack > maxIdx) {
+ return null;
+ }
+ return arr[maxIdx - idxFromBack];
+ }
+
+ if (RUN_ASSERTS) {
+ console.assert(peek(["a"], 0) === "a");
+ console.assert(peek(["a"], 1) === null);
+ console.assert(peek(["a", "b", "c"], 0) === "c");
+ console.assert(peek(["a", "b", "c"], 1) === "b");
+ console.assert(peek(["a", "b", "c"], 5) === null);
+ console.assert(peek([], 0) === null);
+ console.assert(peek([], 1) === null);
+ }
+
+ //------------------------------------------------------------------------------
+ // Questions about characters
+ //------------------------------------------------------------------------------
+
+ function isOpenParen(ch) {
+ return ch === "{" || ch === "(" || ch === "[";
+ }
+
+ function isCloseParen(ch) {
+ return ch === "}" || ch === ")" || ch === "]";
+ }
+
+ function isValidCloseParen(parenStack, ch) {
+ if (parenStack.length === 0) {
+ return false;
+ }
+ return peek(parenStack, 0).ch === MATCH_PAREN[ch];
+ }
+
+ function isWhitespace(result) {
+ var ch = result.ch;
+ return !result.isEscaped && (ch === BLANK_SPACE || ch === DOUBLE_SPACE);
+ }
+
+ // can this be the last code character of a list?
+ function isClosable(result) {
+ var ch = result.ch;
+ var closer = isCloseParen(ch) && !result.isEscaped;
+ return result.isInCode && !isWhitespace(result) && ch !== "" && !closer;
+ }
+
+ //------------------------------------------------------------------------------
+ // Advanced operations on characters
+ //------------------------------------------------------------------------------
+
+ function checkCursorHolding(result) {
+ var opener = peek(result.parenStack, 0);
+ var parent = peek(result.parenStack, 1);
+ var holdMinX = parent ? parent.x + 1 : 0;
+ var holdMaxX = opener.x;
+
+ var holding =
+ result.cursorLine === opener.lineNo &&
+ holdMinX <= result.cursorX &&
+ result.cursorX <= holdMaxX;
+ var shouldCheckPrev =
+ !result.changes && result.prevCursorLine !== UINT_NULL;
+ if (shouldCheckPrev) {
+ var prevHolding =
+ result.prevCursorLine === opener.lineNo &&
+ holdMinX <= result.prevCursorX &&
+ result.prevCursorX <= holdMaxX;
+ if (prevHolding && !holding) {
+ throw { releaseCursorHold: true };
+ }
+ }
+ return holding;
+ }
+
+ function trackArgTabStop(result, state) {
+ if (state === "space") {
+ if (result.isInCode && isWhitespace(result)) {
+ result.trackingArgTabStop = "arg";
+ }
+ } else if (state === "arg") {
+ if (!isWhitespace(result)) {
+ var opener = peek(result.parenStack, 0);
+ opener.argX = result.x;
+ result.trackingArgTabStop = null;
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Literal character events
+ //------------------------------------------------------------------------------
+
+ function onOpenParen(result) {
+ if (result.isInCode) {
+ var opener = {
+ inputLineNo: result.inputLineNo,
+ inputX: result.inputX,
+
+ lineNo: result.lineNo,
+ x: result.x,
+ ch: result.ch,
+ indentDelta: result.indentDelta,
+ maxChildIndent: UINT_NULL,
+ };
+
+ if (result.returnParens) {
+ opener.children = [];
+ opener.closer = {
+ lineNo: UINT_NULL,
+ x: UINT_NULL,
+ ch: "",
+ };
+ var parent = peek(result.parenStack, 0);
+ parent = parent ? parent.children : result.parens;
+ parent.push(opener);
+ }
+
+ result.parenStack.push(opener);
+ result.trackingArgTabStop = "space";
+ }
+ }
+
+ function setCloser(opener, lineNo, x, ch) {
+ opener.closer.lineNo = lineNo;
+ opener.closer.x = x;
+ opener.closer.ch = ch;
+ }
+
+ function onMatchedCloseParen(result) {
+ var opener = peek(result.parenStack, 0);
+ if (result.returnParens) {
+ setCloser(opener, result.lineNo, result.x, result.ch);
+ }
+
+ result.parenTrail.endX = result.x + 1;
+ result.parenTrail.openers.push(opener);
+
+ if (
+ result.mode === INDENT_MODE &&
+ result.smart &&
+ checkCursorHolding(result)
+ ) {
+ var origStartX = result.parenTrail.startX;
+ var origEndX = result.parenTrail.endX;
+ var origOpeners = result.parenTrail.openers;
+ resetParenTrail(result, result.lineNo, result.x + 1);
+ result.parenTrail.clamped.startX = origStartX;
+ result.parenTrail.clamped.endX = origEndX;
+ result.parenTrail.clamped.openers = origOpeners;
+ }
+ result.parenStack.pop();
+ result.trackingArgTabStop = null;
+ }
+
+ function onUnmatchedCloseParen(result) {
+ if (result.mode === PAREN_MODE) {
+ var trail = result.parenTrail;
+ var inLeadingParenTrail =
+ trail.lineNo === result.lineNo && trail.startX === result.indentX;
+ var canRemove = result.smart && inLeadingParenTrail;
+ if (!canRemove) {
+ throw error(result, ERROR_UNMATCHED_CLOSE_PAREN);
+ }
+ } else if (
+ result.mode === INDENT_MODE &&
+ !result.errorPosCache[ERROR_UNMATCHED_CLOSE_PAREN]
+ ) {
+ cacheErrorPos(result, ERROR_UNMATCHED_CLOSE_PAREN);
+ var opener = peek(result.parenStack, 0);
+ if (opener) {
+ var e = cacheErrorPos(result, ERROR_UNMATCHED_OPEN_PAREN);
+ e.inputLineNo = opener.inputLineNo;
+ e.inputX = opener.inputX;
+ }
+ }
+ result.ch = "";
+ }
+
+ function onCloseParen(result) {
+ if (result.isInCode) {
+ if (isValidCloseParen(result.parenStack, result.ch)) {
+ onMatchedCloseParen(result);
+ } else {
+ onUnmatchedCloseParen(result);
+ }
+ }
+ }
+
+ function onTab(result) {
+ if (result.isInCode) {
+ result.ch = DOUBLE_SPACE;
+ }
+ }
+
+ function onSemicolon(result) {
+ if (result.isInCode) {
+ result.isInComment = true;
+ result.commentX = result.x;
+ result.trackingArgTabStop = null;
+ }
+ }
+
+ function onNewline(result) {
+ result.isInComment = false;
+ result.ch = "";
+ }
+
+ function onQuote(result) {
+ if (result.isInStr) {
+ result.isInStr = false;
+ } else if (result.isInComment) {
+ result.quoteDanger = !result.quoteDanger;
+ if (result.quoteDanger) {
+ cacheErrorPos(result, ERROR_QUOTE_DANGER);
+ }
+ } else {
+ result.isInStr = true;
+ cacheErrorPos(result, ERROR_UNCLOSED_QUOTE);
+ }
+ }
+
+ function onBackslash(result) {
+ result.isEscaping = true;
+ }
+
+ function afterBackslash(result) {
+ result.isEscaping = false;
+ result.isEscaped = true;
+
+ if (result.ch === NEWLINE) {
+ if (result.isInCode) {
+ throw error(result, ERROR_EOL_BACKSLASH);
+ }
+ onNewline(result);
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Character dispatch
+ //------------------------------------------------------------------------------
+
+ function onChar(result) {
+ var ch = result.ch;
+ result.isEscaped = false;
+
+ if (result.isEscaping) {
+ afterBackslash(result);
+ } else if (isOpenParen(ch)) {
+ onOpenParen(result);
+ } else if (isCloseParen(ch)) {
+ onCloseParen(result);
+ } else if (ch === DOUBLE_QUOTE) {
+ onQuote(result);
+ } else if (ch === SEMICOLON) {
+ onSemicolon(result);
+ } else if (ch === BACKSLASH) {
+ onBackslash(result);
+ } else if (ch === TAB) {
+ onTab(result);
+ } else if (ch === NEWLINE) {
+ onNewline(result);
+ }
+
+ ch = result.ch;
+
+ result.isInCode = !result.isInComment && !result.isInStr;
+
+ if (isClosable(result)) {
+ resetParenTrail(result, result.lineNo, result.x + ch.length);
+ }
+
+ var state = result.trackingArgTabStop;
+ if (state) {
+ trackArgTabStop(result, state);
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Cursor functions
+ //------------------------------------------------------------------------------
+
+ function isCursorLeftOf(cursorX, cursorLine, x, lineNo) {
+ return (
+ cursorLine === lineNo &&
+ x !== UINT_NULL &&
+ cursorX !== UINT_NULL &&
+ cursorX <= x // inclusive since (cursorX = x) implies (x-1 < cursor < x)
+ );
+ }
+
+ function isCursorRightOf(cursorX, cursorLine, x, lineNo) {
+ return (
+ cursorLine === lineNo &&
+ x !== UINT_NULL &&
+ cursorX !== UINT_NULL &&
+ cursorX > x
+ );
+ }
+
+ function isCursorInComment(result, cursorX, cursorLine) {
+ return isCursorRightOf(cursorX, cursorLine, result.commentX, result.lineNo);
+ }
+
+ function handleChangeDelta(result) {
+ if (result.changes && (result.smart || result.mode === PAREN_MODE)) {
+ var line = result.changes[result.inputLineNo];
+ if (line) {
+ var change = line[result.inputX];
+ if (change) {
+ result.indentDelta += change.newEndX - change.oldEndX;
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Paren Trail functions
+ //------------------------------------------------------------------------------
+
+ function resetParenTrail(result, lineNo, x) {
+ result.parenTrail.lineNo = lineNo;
+ result.parenTrail.startX = x;
+ result.parenTrail.endX = x;
+ result.parenTrail.openers = [];
+ result.parenTrail.clamped.startX = UINT_NULL;
+ result.parenTrail.clamped.endX = UINT_NULL;
+ result.parenTrail.clamped.openers = [];
+ }
+
+ function isCursorClampingParenTrail(result, cursorX, cursorLine) {
+ return (
+ isCursorRightOf(
+ cursorX,
+ cursorLine,
+ result.parenTrail.startX,
+ result.lineNo
+ ) && !isCursorInComment(result, cursorX, cursorLine)
+ );
+ }
+
+ // INDENT MODE: allow the cursor to clamp the paren trail
+ function clampParenTrailToCursor(result) {
+ var startX = result.parenTrail.startX;
+ var endX = result.parenTrail.endX;
+
+ var clamping = isCursorClampingParenTrail(
+ result,
+ result.cursorX,
+ result.cursorLine
+ );
+
+ if (clamping) {
+ var newStartX = Math.max(startX, result.cursorX);
+ var newEndX = Math.max(endX, result.cursorX);
+
+ var line = result.lines[result.lineNo];
+ var removeCount = 0;
+ var i;
+ for (i = startX; i < newStartX; i++) {
+ if (isCloseParen(line[i])) {
+ removeCount++;
+ }
+ }
+
+ var openers = result.parenTrail.openers;
+
+ result.parenTrail.openers = openers.slice(removeCount);
+ result.parenTrail.startX = newStartX;
+ result.parenTrail.endX = newEndX;
+
+ result.parenTrail.clamped.openers = openers.slice(0, removeCount);
+ result.parenTrail.clamped.startX = startX;
+ result.parenTrail.clamped.endX = endX;
+ }
+ }
+
+ // INDENT MODE: pops the paren trail from the stack
+ function popParenTrail(result) {
+ var startX = result.parenTrail.startX;
+ var endX = result.parenTrail.endX;
+
+ if (startX === endX) {
+ return;
+ }
+
+ var openers = result.parenTrail.openers;
+ while (openers.length !== 0) {
+ result.parenStack.push(openers.pop());
+ }
+ }
+
+ // Determine which open-paren (if any) on the parenStack should be considered
+ // the direct parent of the current line (given its indentation point).
+ // This allows Smart Mode to simulate Paren Mode's structure-preserving
+ // behavior by adding its `opener.indentDelta` to the current line's indentation.
+ // (care must be taken to prevent redundant indentation correction, detailed below)
+ function getParentOpenerIndex(result, indentX) {
+ var i;
+ for (i = 0; i < result.parenStack.length; i++) {
+ var opener = peek(result.parenStack, i);
+
+ var currOutside = opener.x < indentX;
+
+ var prevIndentX = indentX - result.indentDelta;
+ var prevOutside = opener.x - opener.indentDelta < prevIndentX;
+
+ var isParent = false;
+
+ if (prevOutside && currOutside) {
+ isParent = true;
+ } else if (!prevOutside && !currOutside) {
+ isParent = false;
+ } else if (prevOutside && !currOutside) {
+ // POSSIBLE FRAGMENTATION
+ // (foo --\
+ // +--- FRAGMENT `(foo bar)` => `(foo) bar`
+ // bar) --/
+
+ // 1. PREVENT FRAGMENTATION
+ // ```in
+ // (foo
+ // ++
+ // bar
+ // ```
+ // ```out
+ // (foo
+ // bar
+ // ```
+ if (result.indentDelta === 0) {
+ isParent = true;
+ }
+
+ // 2. ALLOW FRAGMENTATION
+ // ```in
+ // (foo
+ // bar
+ // --
+ // ```
+ // ```out
+ // (foo)
+ // bar
+ // ```
+ else if (opener.indentDelta === 0) {
+ isParent = false;
+ } else {
+ // TODO: identify legitimate cases where both are nonzero
+
+ // allow the fragmentation by default
+ isParent = false;
+
+ // TODO: should we throw to exit instead? either of:
+ // 1. give up, just `throw error(...)`
+ // 2. fallback to paren mode to preserve structure
+ }
+ } else if (!prevOutside && currOutside) {
+ // POSSIBLE ADOPTION
+ // (foo) --\
+ // +--- ADOPT `(foo) bar` => `(foo bar)`
+ // bar --/
+
+ var nextOpener = peek(result.parenStack, i + 1);
+
+ // 1. DISALLOW ADOPTION
+ // ```in
+ // (foo
+ // --
+ // (bar)
+ // --
+ // baz)
+ // ```
+ // ```out
+ // (foo
+ // (bar)
+ // baz)
+ // ```
+ // OR
+ // ```in
+ // (foo
+ // --
+ // (bar)
+ // -
+ // baz)
+ // ```
+ // ```out
+ // (foo
+ // (bar)
+ // baz)
+ // ```
+ if (nextOpener && nextOpener.indentDelta <= opener.indentDelta) {
+ // we can only disallow adoption if nextOpener.indentDelta will actually
+ // prevent the indentX from being in the opener's threshold.
+ if (indentX + nextOpener.indentDelta > opener.x) {
+ isParent = true;
+ } else {
+ isParent = false;
+ }
+ }
+
+ // 2. ALLOW ADOPTION
+ // ```in
+ // (foo
+ // (bar)
+ // --
+ // baz)
+ // ```
+ // ```out
+ // (foo
+ // (bar
+ // baz))
+ // ```
+ // OR
+ // ```in
+ // (foo
+ // -
+ // (bar)
+ // --
+ // baz)
+ // ```
+ // ```out
+ // (foo
+ // (bar)
+ // baz)
+ // ```
+ else if (nextOpener && nextOpener.indentDelta > opener.indentDelta) {
+ isParent = true;
+ }
+
+ // 3. ALLOW ADOPTION
+ // ```in
+ // (foo)
+ // --
+ // bar
+ // ```
+ // ```out
+ // (foo
+ // bar)
+ // ```
+ // OR
+ // ```in
+ // (foo)
+ // bar
+ // ++
+ // ```
+ // ```out
+ // (foo
+ // bar
+ // ```
+ // OR
+ // ```in
+ // (foo)
+ // +
+ // bar
+ // ++
+ // ```
+ // ```out
+ // (foo
+ // bar)
+ // ```
+ else if (result.indentDelta > opener.indentDelta) {
+ isParent = true;
+ }
+
+ if (isParent) {
+ // if new parent
+ // Clear `indentDelta` since it is reserved for previous child lines only.
+ opener.indentDelta = 0;
+ }
+ }
+
+ if (isParent) {
+ break;
+ }
+ }
+ return i;
+ }
+
+ // INDENT MODE: correct paren trail from indentation
+ function correctParenTrail(result, indentX) {
+ var parens = "";
+
+ var index = getParentOpenerIndex(result, indentX);
+ var i;
+ for (i = 0; i < index; i++) {
+ var opener = result.parenStack.pop();
+ result.parenTrail.openers.push(opener);
+ var closeCh = MATCH_PAREN[opener.ch];
+ parens += closeCh;
+
+ if (result.returnParens) {
+ setCloser(
+ opener,
+ result.parenTrail.lineNo,
+ result.parenTrail.startX + i,
+ closeCh
+ );
+ }
+ }
+
+ if (result.parenTrail.lineNo !== UINT_NULL) {
+ replaceWithinLine(
+ result,
+ result.parenTrail.lineNo,
+ result.parenTrail.startX,
+ result.parenTrail.endX,
+ parens
+ );
+ result.parenTrail.endX = result.parenTrail.startX + parens.length;
+ rememberParenTrail(result);
+ }
+ }
+
+ // PAREN MODE: remove spaces from the paren trail
+ function cleanParenTrail(result) {
+ var startX = result.parenTrail.startX;
+ var endX = result.parenTrail.endX;
+
+ if (startX === endX || result.lineNo !== result.parenTrail.lineNo) {
+ return;
+ }
+
+ var line = result.lines[result.lineNo];
+ var newTrail = "";
+ var spaceCount = 0;
+ var i;
+ for (i = startX; i < endX; i++) {
+ if (isCloseParen(line[i])) {
+ newTrail += line[i];
+ } else {
+ spaceCount++;
+ }
+ }
+
+ if (spaceCount > 0) {
+ replaceWithinLine(result, result.lineNo, startX, endX, newTrail);
+ result.parenTrail.endX -= spaceCount;
+ }
+ }
+
+ // PAREN MODE: append a valid close-paren to the end of the paren trail
+ function appendParenTrail(result) {
+ var opener = result.parenStack.pop();
+ var closeCh = MATCH_PAREN[opener.ch];
+ if (result.returnParens) {
+ setCloser(
+ opener,
+ result.parenTrail.lineNo,
+ result.parenTrail.endX,
+ closeCh
+ );
+ }
+
+ setMaxIndent(result, opener);
+ insertWithinLine(
+ result,
+ result.parenTrail.lineNo,
+ result.parenTrail.endX,
+ closeCh
+ );
+
+ result.parenTrail.endX++;
+ result.parenTrail.openers.push(opener);
+ updateRememberedParenTrail(result);
+ }
+
+ function invalidateParenTrail(result) {
+ result.parenTrail = initialParenTrail();
+ }
+
+ function checkUnmatchedOutsideParenTrail(result) {
+ var cache = result.errorPosCache[ERROR_UNMATCHED_CLOSE_PAREN];
+ if (cache && cache.x < result.parenTrail.startX) {
+ throw error(result, ERROR_UNMATCHED_CLOSE_PAREN);
+ }
+ }
+
+ function setMaxIndent(result, opener) {
+ if (opener) {
+ var parent = peek(result.parenStack, 0);
+ if (parent) {
+ parent.maxChildIndent = opener.x;
+ } else {
+ result.maxIndent = opener.x;
+ }
+ }
+ }
+
+ function rememberParenTrail(result) {
+ var trail = result.parenTrail;
+ var openers = trail.clamped.openers.concat(trail.openers);
+ if (openers.length > 0) {
+ var isClamped = trail.clamped.startX !== UINT_NULL;
+ var allClamped = trail.openers.length === 0;
+ var shortTrail = {
+ lineNo: trail.lineNo,
+ startX: isClamped ? trail.clamped.startX : trail.startX,
+ endX: allClamped ? trail.clamped.endX : trail.endX,
+ };
+ result.parenTrails.push(shortTrail);
+
+ if (result.returnParens) {
+ var i;
+ for (i = 0; i < openers.length; i++) {
+ openers[i].closer.trail = shortTrail;
+ }
+ }
+ }
+ }
+
+ function updateRememberedParenTrail(result) {
+ var trail = result.parenTrails[result.parenTrails.length - 1];
+ if (!trail || trail.lineNo !== result.parenTrail.lineNo) {
+ rememberParenTrail(result);
+ } else {
+ trail.endX = result.parenTrail.endX;
+ if (result.returnParens) {
+ var opener =
+ result.parenTrail.openers[result.parenTrail.openers.length - 1];
+ opener.closer.trail = trail;
+ }
+ }
+ }
+
+ function finishNewParenTrail(result) {
+ if (result.isInStr) {
+ invalidateParenTrail(result);
+ } else if (result.mode === INDENT_MODE) {
+ clampParenTrailToCursor(result);
+ popParenTrail(result);
+ } else if (result.mode === PAREN_MODE) {
+ setMaxIndent(result, peek(result.parenTrail.openers, 0));
+ if (result.lineNo !== result.cursorLine) {
+ cleanParenTrail(result);
+ }
+ rememberParenTrail(result);
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // Indentation functions
+ //------------------------------------------------------------------------------
+
+ function addIndent(result, delta) {
+ var origIndent = result.x;
+ var newIndent = origIndent + delta;
+ var indentStr = repeatString(BLANK_SPACE, newIndent);
+ replaceWithinLine(result, result.lineNo, 0, origIndent, indentStr);
+ result.x = newIndent;
+ result.indentX = newIndent;
+ result.indentDelta += delta;
+ }
+
+ function shouldAddOpenerIndent(result, opener) {
+ // Don't add opener.indentDelta if the user already added it.
+ // (happens when multiple lines are indented together)
+ return opener.indentDelta !== result.indentDelta;
+ }
+
+ function correctIndent(result) {
+ var origIndent = result.x;
+ var newIndent = origIndent;
+ var minIndent = 0;
+ var maxIndent = result.maxIndent;
+
+ var opener = peek(result.parenStack, 0);
+ if (opener) {
+ minIndent = opener.x + 1;
+ maxIndent = opener.maxChildIndent;
+ if (shouldAddOpenerIndent(result, opener)) {
+ newIndent += opener.indentDelta;
+ }
+ }
+
+ newIndent = clamp(newIndent, minIndent, maxIndent);
+
+ if (newIndent !== origIndent) {
+ addIndent(result, newIndent - origIndent);
+ }
+ }
+
+ function onIndent(result) {
+ result.indentX = result.x;
+ result.trackingIndent = false;
+
+ if (result.quoteDanger) {
+ throw error(result, ERROR_QUOTE_DANGER);
+ }
+
+ if (result.mode === INDENT_MODE) {
+ correctParenTrail(result, result.x);
+
+ var opener = peek(result.parenStack, 0);
+ if (opener && shouldAddOpenerIndent(result, opener)) {
+ addIndent(result, opener.indentDelta);
+ }
+ } else if (result.mode === PAREN_MODE) {
+ correctIndent(result);
+ }
+ }
+
+ function checkLeadingCloseParen(result) {
+ if (
+ result.errorPosCache[ERROR_LEADING_CLOSE_PAREN] &&
+ result.parenTrail.lineNo === result.lineNo
+ ) {
+ throw error(result, ERROR_LEADING_CLOSE_PAREN);
+ }
+ }
+
+ function onLeadingCloseParen(result) {
+ if (result.mode === INDENT_MODE) {
+ if (!result.forceBalance) {
+ if (result.smart) {
+ throw { leadingCloseParen: true };
+ }
+ if (!result.errorPosCache[ERROR_LEADING_CLOSE_PAREN]) {
+ cacheErrorPos(result, ERROR_LEADING_CLOSE_PAREN);
+ }
+ }
+ result.skipChar = true;
+ }
+ if (result.mode === PAREN_MODE) {
+ if (!isValidCloseParen(result.parenStack, result.ch)) {
+ if (result.smart) {
+ result.skipChar = true;
+ } else {
+ throw error(result, ERROR_UNMATCHED_CLOSE_PAREN);
+ }
+ } else if (
+ isCursorLeftOf(
+ result.cursorX,
+ result.cursorLine,
+ result.x,
+ result.lineNo
+ )
+ ) {
+ resetParenTrail(result, result.lineNo, result.x);
+ onIndent(result);
+ } else {
+ appendParenTrail(result);
+ result.skipChar = true;
+ }
+ }
+ }
+
+ function onCommentLine(result) {
+ var parenTrailLength = result.parenTrail.openers.length;
+
+ // restore the openers matching the previous paren trail
+ var j;
+ if (result.mode === PAREN_MODE) {
+ for (j = 0; j < parenTrailLength; j++) {
+ result.parenStack.push(peek(result.parenTrail.openers, j));
+ }
+ }
+
+ var i = getParentOpenerIndex(result, result.x);
+ var opener = peek(result.parenStack, i);
+ if (opener) {
+ // shift the comment line based on the parent open paren
+ if (shouldAddOpenerIndent(result, opener)) {
+ addIndent(result, opener.indentDelta);
+ }
+ // TODO: store some information here if we need to place close-parens after comment lines
+ }
+
+ // repop the openers matching the previous paren trail
+ if (result.mode === PAREN_MODE) {
+ for (j = 0; j < parenTrailLength; j++) {
+ result.parenStack.pop();
+ }
+ }
+ }
+
+ function checkIndent(result) {
+ if (isCloseParen(result.ch)) {
+ onLeadingCloseParen(result);
+ } else if (result.ch === SEMICOLON) {
+ // comments don't count as indentation points
+ onCommentLine(result);
+ result.trackingIndent = false;
+ } else if (
+ result.ch !== NEWLINE &&
+ result.ch !== BLANK_SPACE &&
+ result.ch !== TAB
+ ) {
+ onIndent(result);
+ }
+ }
+
+ function makeTabStop(result, opener) {
+ var tabStop = {
+ ch: opener.ch,
+ x: opener.x,
+ lineNo: opener.lineNo,
+ };
+ if (opener.argX != null) {
+ tabStop.argX = opener.argX;
+ }
+ return tabStop;
+ }
+
+ function getTabStopLine(result) {
+ return result.selectionStartLine !== UINT_NULL
+ ? result.selectionStartLine
+ : result.cursorLine;
+ }
+
+ function setTabStops(result) {
+ if (getTabStopLine(result) !== result.lineNo) {
+ return;
+ }
+
+ var i;
+ for (i = 0; i < result.parenStack.length; i++) {
+ result.tabStops.push(makeTabStop(result, result.parenStack[i]));
+ }
+
+ if (result.mode === PAREN_MODE) {
+ for (i = result.parenTrail.openers.length - 1; i >= 0; i--) {
+ result.tabStops.push(makeTabStop(result, result.parenTrail.openers[i]));
+ }
+ }
+
+ // remove argX if it falls to the right of the next stop
+ for (i = 1; i < result.tabStops.length; i++) {
+ var x = result.tabStops[i].x;
+ var prevArgX = result.tabStops[i - 1].argX;
+ if (prevArgX != null && prevArgX >= x) {
+ delete result.tabStops[i - 1].argX;
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ // High-level processing functions
+ //------------------------------------------------------------------------------
+
+ function processChar(result, ch) {
+ var origCh = ch;
+
+ result.ch = ch;
+ result.skipChar = false;
+
+ handleChangeDelta(result);
+
+ if (result.trackingIndent) {
+ checkIndent(result);
+ }
+
+ if (result.skipChar) {
+ result.ch = "";
+ } else {
+ onChar(result);
+ }
+
+ commitChar(result, origCh);
+ }
+
+ function processLine(result, lineNo) {
+ initLine(result);
+ result.lines.push(result.inputLines[lineNo]);
+
+ setTabStops(result);
+
+ var x;
+ for (x = 0; x < result.inputLines[lineNo].length; x++) {
+ result.inputX = x;
+ processChar(result, result.inputLines[lineNo][x]);
+ }
+ processChar(result, NEWLINE);
+
+ if (!result.forceBalance) {
+ checkUnmatchedOutsideParenTrail(result);
+ checkLeadingCloseParen(result);
+ }
+
+ if (result.lineNo === result.parenTrail.lineNo) {
+ finishNewParenTrail(result);
+ }
+ }
+
+ function finalizeResult(result) {
+ if (result.quoteDanger) {
+ throw error(result, ERROR_QUOTE_DANGER);
+ }
+ if (result.isInStr) {
+ throw error(result, ERROR_UNCLOSED_QUOTE);
+ }
+
+ if (result.parenStack.length !== 0) {
+ if (result.mode === PAREN_MODE) {
+ throw error(result, ERROR_UNCLOSED_PAREN);
+ }
+ }
+ if (result.mode === INDENT_MODE) {
+ initLine(result);
+ onIndent(result);
+ }
+ result.success = true;
+ }
+
+ function processError(result, e) {
+ result.success = false;
+ if (e.parinferError) {
+ delete e.parinferError;
+ result.error = e;
+ } else {
+ result.error.name = ERROR_UNHANDLED;
+ result.error.message = e.stack;
+ throw e;
+ }
+ }
+
+ function processText(text, options, mode, smart) {
+ var result = getInitialResult(text, options, mode, smart);
+
+ try {
+ var i;
+ for (i = 0; i < result.inputLines.length; i++) {
+ result.inputLineNo = i;
+ processLine(result, i);
+ }
+ finalizeResult(result);
+ } catch (e) {
+ if (e.leadingCloseParen || e.releaseCursorHold) {
+ return processText(text, options, PAREN_MODE, smart);
+ }
+ processError(result, e);
+ }
+
+ return result;
+ }
+
+ //------------------------------------------------------------------------------
+ // Public API
+ //------------------------------------------------------------------------------
+
+ function publicResult(result) {
+ var lineEnding = getLineEnding(result.origText);
+ var final;
+ if (result.success) {
+ final = {
+ text: result.lines.join(lineEnding),
+ cursorX: result.cursorX,
+ cursorLine: result.cursorLine,
+ success: true,
+ tabStops: result.tabStops,
+ parenTrails: result.parenTrails,
+ };
+ if (result.returnParens) {
+ final.parens = result.parens;
+ }
+ } else {
+ final = {
+ text: result.partialResult
+ ? result.lines.join(lineEnding)
+ : result.origText,
+ cursorX: result.partialResult ? result.cursorX : result.origCursorX,
+ cursorLine: result.partialResult
+ ? result.cursorLine
+ : result.origCursorLine,
+ parenTrails: result.partialResult ? result.parenTrails : null,
+ success: false,
+ error: result.error,
+ };
+ if (result.partialResult && result.returnParens) {
+ final.parens = result.parens;
+ }
+ }
+ if (final.cursorX === UINT_NULL) {
+ delete final.cursorX;
+ }
+ if (final.cursorLine === UINT_NULL) {
+ delete final.cursorLine;
+ }
+ if (final.tabStops && final.tabStops.length === 0) {
+ delete final.tabStops;
+ }
+ return final;
+ }
+
+ function indentMode(text, options) {
+ options = parseOptions(options);
+ return publicResult(processText(text, options, INDENT_MODE));
+ }
+
+ function parenMode(text, options) {
+ options = parseOptions(options);
+ return publicResult(processText(text, options, PAREN_MODE));
+ }
+
+ function smartMode(text, options) {
+ options = parseOptions(options);
+ var smart = options.selectionStartLine == null;
+ return publicResult(processText(text, options, INDENT_MODE, smart));
+ }
+
+ var API = {
+ version: "3.12.0",
+ indentMode: indentMode,
+ parenMode: parenMode,
+ smartMode: smartMode,
+ };
+
+ return API;
+}); // end module anonymous scope
diff --git a/docs/parinfer-tester/assets/style.css b/docs/parinfer-tester/assets/style.css
new file mode 100644
index 0000000..816ce6f
--- /dev/null
+++ b/docs/parinfer-tester/assets/style.css
@@ -0,0 +1,646 @@
+* {
+ box-sizing: border-box;
+}
+
+body {
+ font-family: "Open Sans", Arial, freesans, sans-serif;
+ color: #555;
+ background: #f7f7f7;
+}
+
+#xkcd a {
+ border-bottom: 0;
+}
+
+#xkcd .caption {
+ padding-top: 0;
+}
+
+#toc {
+ text-align: left;
+ margin-left: 10px;
+ font-size: 0.9em;
+}
+
+a.header-link {
+ color: #ccc;
+ position: absolute;
+ left: -1em;
+ border-bottom: 0;
+}
+
+.toc-link a {
+ border-bottom: 0;
+ color: #111;
+}
+
+.toc-link {
+ line-height: 1.6em;
+ opacity: 0.4;
+ transition: opacity 0.3s;
+ margin-top: 2px;
+ margin-right: 2px;
+}
+
+.toc-hide {
+ display: none;
+}
+
+.toc-link.toc-active {
+ border-right: 2px solid #333;
+ margin-right: 0px;
+ opacity: 1;
+}
+
+.toc-link.toc-active-ancestor {
+ border-right: 2px solid #ccc;
+ margin-right: 0;
+ opacity: 1;
+}
+
+.toc-level-1 {
+ display: none;
+}
+
+.toc-level-2 {
+ padding-left: 10px;
+}
+
+.toc-level-3 {
+ padding-left: 30px;
+}
+
+.toc-level-4 {
+ padding-left: 40px;
+}
+
+#controls {
+ position: fixed;
+ right: 0;
+ top: 0;
+ background-color: rgba(0, 255, 255, 0.3);
+ margin: 0;
+ padding: 20px;
+}
+
+.interact {
+ padding: 20px;
+ background: #e7eae9;
+ border-radius: 8px;
+ margin: 32px 0;
+}
+
+.interact img {
+ float: left;
+ height: 58px;
+ margin-right: 20px;
+}
+
+.interact:after {
+ content: "";
+ display: block;
+ clear: both;
+}
+
+.paredit-table {
+ border-collapse: collapse;
+}
+
+.paredit-table th,
+.paredit-table td {
+ padding: 14px;
+ border: 1px solid #cecece;
+ background: #fefefe;
+ vertical-align: top;
+}
+
+.paredit-table th {
+ color: #888;
+ font-style: italic;
+ background: none;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+ color: #222;
+ margin-top: 0;
+ margin-bottom: 20px;
+ position: relative;
+}
+
+h1 {
+ margin: 32px 0;
+ text-align: center;
+ font-size: 48px;
+ font-weight: 200;
+}
+
+h1 em {
+ text-decoration: none;
+ font-style: normal;
+ opacity: 0.3;
+}
+
+.subtitle {
+ font-size: 20px;
+ font-weight: bold;
+ margin-top: -18px;
+ margin-bottom: 32px;
+}
+
+.subtitle em {
+ color: #111;
+ border-bottom: 1px solid #111;
+}
+
+.features {
+ color: #888;
+ list-style-type: square;
+}
+
+a {
+ border-bottom: 1px solid #cc3385;
+ color: #cc3385;
+}
+
+a:link,
+a:visited,
+a:hover,
+a:active {
+ text-decoration: none;
+}
+
+p,
+li {
+ line-height: 1.7em;
+ color: #555;
+}
+
+.sidebar {
+ width: 300px;
+ position: fixed;
+ left: 0;
+ top: 0;
+ padding-left: 20px;
+ padding-bottom: 32px;
+ height: 100%;
+ border-right: 1px solid #ddd;
+ background-color: #f1f1f1;
+ overflow-y: auto;
+}
+
+.sidebar-logo {
+ margin: 60px 0 0 70px;
+ display: block;
+}
+
+.credits {
+ font-size: 0.8em;
+ text-align: center;
+ margin-top: -20px;
+ margin-bottom: 20px;
+}
+
+.credits a {
+ opacity: 0.5;
+ color: #333;
+ border-bottom: 0;
+}
+
+#app {
+ position: absolute;
+ left: 300px;
+ top: 0;
+ right: 0;
+}
+
+.wrapper {
+ right: 0;
+ margin: 0;
+ border-top: 1px solid #dedede;
+}
+
+.wrapper.fold {
+ background: #fefefe;
+}
+
+.wrapper.fold .interact {
+ background: #f7f7f7;
+ border: 1px solid #dedede;
+}
+
+.wrapper.fold .title {
+ font-weight: bold;
+ font-style: italic;
+}
+
+section {
+ width: 862px;
+ padding: 70px;
+}
+
+.wrapper:first-child > section {
+ margin-top: 0;
+ padding-top: 0;
+ border-top: 0;
+}
+
+.caption {
+ padding-top: 20px;
+ margin-bottom: 5px;
+ margin-left: 5px;
+ font-style: italic;
+ color: #888;
+}
+
+code {
+ font-family: Menlo, Consolas, "DejaVu Sans Mono", monospace;
+ font-size: 16px;
+}
+
+.CodeMirror {
+ font-family: Menlo, Consolas, "DejaVu Sans Mono", monospace;
+ background: #fefefe;
+ border: 1px solid #eee;
+ padding: 5px;
+ margin-bottom: 20px;
+}
+
+.cm-bracket.cm-eol {
+ opacity: 0.4;
+}
+
+.two-col {
+}
+
+.col {
+ float: left;
+ width: 350px;
+ margin-right: 10px;
+}
+
+.two-col:after {
+ content: "";
+ display: block;
+ clear: both;
+}
+
+#cm-code-intro {
+ height: 200px;
+ margin-bottom: 80px;
+}
+
+#cm-code-lisp-expr,
+#cm-code-c-expr {
+ height: 120px;
+}
+
+#cm-code-lisp-indent,
+#cm-code-c-indent {
+ height: 174px;
+}
+
+#cm-code-skim,
+#cm-code-inspect {
+ height: 96px;
+}
+
+#cm-code-skim span.cm-bracket {
+ opacity: 0.15;
+ color: #000;
+}
+
+#cm-code-inspect span.cm-keyword,
+#cm-code-inspect span.cm-variable,
+#cm-code-inspect span.cm-builtin,
+#cm-code-inspect span.cm-string,
+#cm-code-inspect span.cm-def,
+#cm-code-inspect span.cm-atom,
+#cm-code-inspect span.cm-number,
+#cm-code-inspect span.cm-comment {
+ opacity: 0.15;
+ color: #000;
+}
+
+#cm-code-indent,
+#cm-code-indent-far {
+ height: 70px;
+}
+
+#cm-code-indent-multi,
+#cm-code-intro-indent {
+ height: 130px;
+}
+
+#cm-code-line,
+#cm-code-intro-insert {
+ height: 150px;
+}
+
+#cm-code-comment,
+#cm-code-intro-comment {
+ height: 130px;
+}
+
+#cm-code-wrap,
+#cm-code-splice,
+#cm-code-slurp,
+#cm-code-barf {
+ height: 70px;
+}
+
+#cm-code-string {
+ height: 110px;
+}
+
+#cm-code-displaced,
+#cm-code-not-displaced {
+ height: 90px;
+}
+
+#cm-code-indent-input,
+#cm-code-indent-output {
+ height: 250px;
+}
+
+#cm-code-indent-output {
+ opacity: 0.75;
+}
+
+#cm-code-indent-output .cm-bracket.cm-eol {
+ opacity: 1;
+ background: #aaffc2;
+}
+
+#cm-code-indent-input .cm-bracket.cm-eol,
+#cm-code-indent-input .cm-bracket.cm-sol {
+ opacity: 1;
+ background: #ffbebe;
+}
+
+.removed {
+ background: #ffbebe;
+}
+
+.kept {
+ background: #ffe8b0;
+}
+
+.inserted {
+ background: #aaffc2;
+}
+
+#cm-code-indent-output .cm-bracket.cm-mol,
+#cm-code-indent-input .cm-bracket.cm-mol {
+ background: #ffe8b0;
+}
+
+#cm-code-indent-output span.cm-keyword,
+#cm-code-indent-output span.cm-variable,
+#cm-code-indent-output span.cm-builtin,
+#cm-code-indent-output span.cm-string,
+#cm-code-indent-output span.cm-def,
+#cm-code-indent-output span.cm-atom,
+#cm-code-indent-output span.cm-number,
+#cm-code-indent-output span.cm-comment,
+#cm-code-indent-input span.cm-keyword,
+#cm-code-indent-input span.cm-variable,
+#cm-code-indent-input span.cm-builtin,
+#cm-code-indent-input span.cm-string,
+#cm-code-indent-input span.cm-def,
+#cm-code-indent-input span.cm-atom,
+#cm-code-indent-input span.cm-number,
+#cm-code-indent-input span.cm-comment {
+ opacity: 0.3;
+ color: #000;
+}
+
+#cm-code-warn-good,
+#cm-code-warn-bad {
+ font-size: 14px;
+ height: 110px;
+}
+
+#cm-code-enter {
+ height: 180px;
+}
+
+#cm-code-paren-tune,
+#cm-code-paren-frac,
+#cm-code-paren-comment,
+#cm-code-paren-wrap,
+#cm-code-intro-paren {
+ height: 100px;
+}
+
+#cm-code-intro-paredit {
+ height: 100px;
+}
+
+#cm-code-displaced-after-balance,
+#cm-code-not-displaced-on-enter,
+#cm-code-displaced-after-cursor-leaves {
+ height: 80px;
+}
+
+p.centered {
+ text-align: center;
+}
+
+a.img-link {
+ border-bottom: 0;
+}
+
+blockquote.aside {
+ border-left: 5px solid #ddd;
+ margin: 0;
+ margin-top: 60px;
+ padding-left: 20px;
+ opacity: 0.8;
+}
+
+.side-point {
+ font-style: italic;
+ color: #bbb;
+}
+
+td .side-point {
+ margin-top: 5px;
+}
+
+.warning {
+ padding: 20px;
+ border-radius: 5px;
+ background: #ffff7b;
+}
+
+.warning-title {
+ font-weight: bold;
+ margin-bottom: 10px;
+}
+
+.warning-body {
+ margin-left: 34px;
+ color: #333;
+}
+
+.green {
+ color: #63ca63;
+}
+
+.red {
+ color: #e84545;
+}
+
+.question {
+ font-weight: bold;
+}
+
+.question i.fa {
+ color: #5380c7;
+}
+
+.answer {
+ margin-left: 22px;
+}
+
+i.fa {
+ margin-right: 5px;
+}
+
+#cm-code-editor {
+ height: auto;
+ float: left;
+ width: 50%;
+}
+
+#debug-state {
+ overflow-x: auto;
+ width: 50%;
+ white-space: pre;
+}
+
+.state-table {
+ margin-top: 6px;
+ font: 14px Menlo;
+}
+
+.state-table td {
+ margin: 0;
+ padding: 0px 10px;
+ height: 17px;
+}
+
+.state-table .line-no {
+ opacity: 0.5;
+}
+
+.state-table .line-dy {
+ text-align: right;
+}
+
+.state-table .active-line {
+ background: #ff0;
+}
+
+.gear {
+ opacity: 0.3;
+ transition: opacity 0.2s;
+}
+
+.gear.powered {
+ opacity: 0.8;
+}
+
+.gear.auto-indent-gear {
+ opacity: 0.8;
+}
+
+.gear.auto-indent-gear.invisible {
+ opacity: 0;
+}
+
+.parinfer-gear {
+ opacity: 0.15;
+}
+
+.gearbox {
+ margin-bottom: 80px;
+}
+
+.lego-img {
+ width: 100%;
+ border: 1px solid #eee;
+}
+
+.math-page {
+ background: #fefefe;
+ border: 1px solid #eee;
+ padding: 30px;
+ font-family: "Computer Modern Serif";
+ font-size: 18px;
+}
+
+.math-page ul li {
+ list-style-type: none;
+}
+
+.math-page li {
+ margin-bottom: 5px;
+}
+
+.where-x {
+ display: block;
+ margin: 0 auto;
+ width: 250px;
+}
+
+.math-page .MathJax {
+ font-size: 20px;
+}
+
+.math-page .side-note {
+ float: right;
+ font-style: italic;
+ font-size: 0.8em;
+ color: #bbb;
+}
+
+.only-mobile {
+ display: none;
+}
+
+@media only screen and (max-width: 850px) {
+ #app {
+ position: static;
+ }
+
+ .sidebar {
+ display: none;
+ }
+
+ section {
+ width: 782px;
+ padding: 30px;
+ }
+
+ .wrapper {
+ border: 0;
+ }
+
+ h1 {
+ font-size: 80px;
+ }
+
+ .credits {
+ font-size: 1.5em;
+ }
+
+ .only-mobile {
+ display: block;
+ }
+}
diff --git a/docs/parinfer-tester/assets/theme.css b/docs/parinfer-tester/assets/theme.css
new file mode 100644
index 0000000..f01c6aa
--- /dev/null
+++ b/docs/parinfer-tester/assets/theme.css
@@ -0,0 +1,99 @@
+/* DEFAULT THEME */
+
+/*
+
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
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- "minimatch": "^3.0.3",
- "parse-semver": "^1.1.1",
- "read": "^1.0.7",
- "semver": "^5.1.0",
- "tmp": "^0.2.1",
- "typed-rest-client": "^1.8.4",
- "url-join": "^4.0.1",
- "xml2js": "^0.4.23",
- "yauzl": "^2.3.1",
- "yazl": "^2.2.2"
- },
- "dependencies": {
- "ansi-styles": {
- "version": "3.2.1",
- "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
- "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
- "dev": true,
- "requires": {
- "color-convert": "^1.9.0"
- }
- },
- "chalk": {
- "version": "2.4.2",
- "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
- "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
- "dev": true,
- "requires": {
- "ansi-styles": "^3.2.1",
- "escape-string-regexp": "^1.0.5",
- "supports-color": "^5.3.0"
- }
- },
- "color-convert": {
- "version": "1.9.3",
- "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
- "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
- "dev": true,
- "requires": {
- "color-name": "1.1.3"
- }
- },
- "color-name": {
- "version": "1.1.3",
- "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
- "integrity": "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw==",
- "dev": true
- },
- "escape-string-regexp": {
- "version": "1.0.5",
- "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
- "integrity": "sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==",
- "dev": true
- },
- "glob": {
- "version": "7.2.3",
- "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
- "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==",
- "dev": true,
- "requires": {
- "fs.realpath": "^1.0.0",
- "inflight": "^1.0.4",
- "inherits": "2",
- "minimatch": "^3.1.1",
- "once": "^1.3.0",
- "path-is-absolute": "^1.0.0"
- }
- },
- "has-flag": {
- "version": "3.0.0",
- "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
- "integrity": "sha512-sKJf1+ceQBr4SMkvQnBDNDtf4TXpVhVGateu0t918bl30FnbE2m4vNLX+VWe/dpjlb+HugGYzW7uQXH98HPEYw==",
- "dev": true
- },
- "semver": {
- "version": "5.7.1",
- "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
- "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
- "dev": true
- },
- "supports-color": {
- "version": "5.5.0",
- "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
- "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
- "dev": true,
- "requires": {
- "has-flag": "^3.0.0"
- }
- }
- }
- },
- "vscode-jsonrpc": {
- "version": "8.0.2",
- "resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-8.0.2.tgz",
- "integrity": "sha512-RY7HwI/ydoC1Wwg4gJ3y6LpU9FJRZAUnTYMXthqhFXXu77ErDd/xkREpGuk4MyYkk4a+XDWAMqe0S3KkelYQEQ=="
- },
- "vscode-languageclient": {
- "version": "8.0.2",
- "resolved": "https://registry.npmjs.org/vscode-languageclient/-/vscode-languageclient-8.0.2.tgz",
- "integrity": "sha512-lHlthJtphG9gibGb/y72CKqQUxwPsMXijJVpHEC2bvbFqxmkj9LwQ3aGU9dwjBLqsX1S4KjShYppLvg1UJDF/Q==",
- "requires": {
- "minimatch": "^3.0.4",
- "semver": "^7.3.5",
- "vscode-languageserver-protocol": "3.17.2"
- }
- },
- "vscode-languageserver-protocol": {
- "version": "3.17.2",
- "resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.17.2.tgz",
- "integrity": "sha512-8kYisQ3z/SQ2kyjlNeQxbkkTNmVFoQCqkmGrzLH6A9ecPlgTbp3wDTnUNqaUxYr4vlAcloxx8zwy7G5WdguYNg==",
- "requires": {
- "vscode-jsonrpc": "8.0.2",
- "vscode-languageserver-types": "3.17.2"
- }
- },
- "vscode-languageserver-types": {
- "version": "3.17.2",
- "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.2.tgz",
- "integrity": "sha512-zHhCWatviizPIq9B7Vh9uvrH6x3sK8itC84HkamnBWoDFJtzBf7SWlpLCZUit72b3os45h6RWQNC9xHRDF8dRA=="
- },
- "which": {
- "version": "2.0.2",
- "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
- "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
- "dev": true,
- "requires": {
- "isexe": "^2.0.0"
- }
- },
- "word-wrap": {
- "version": "1.2.3",
- "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
- "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
- "dev": true
- },
- "wrappy": {
- "version": "1.0.2",
- "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
- "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
- },
- "xml2js": {
- "version": "0.4.23",
- "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz",
- "integrity": "sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==",
- "dev": true,
- "requires": {
- "sax": ">=0.6.0",
- "xmlbuilder": "~11.0.0"
- }
- },
- "xmlbuilder": {
- "version": "11.0.1",
- "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-11.0.1.tgz",
- "integrity": "sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA==",
- "dev": true
- },
- "yallist": {
- "version": "4.0.0",
- "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
- "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
- },
- "yaml": {
- "version": "1.10.2",
- "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.10.2.tgz",
- "integrity": "sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==",
- "dev": true
- },
- "yauzl": {
- "version": "2.10.0",
- "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
- "integrity": "sha512-p4a9I6X6nu6IhoGmBqAcbJy1mlC4j27vEPZX9F4L4/vZT3Lyq1VkFHw/V/PUcB9Buo+DG3iHkT0x3Qya58zc3g==",
- "dev": true,
- "requires": {
- "buffer-crc32": "~0.2.3",
- "fd-slicer": "~1.1.0"
- }
- },
- "yazl": {
- "version": "2.5.1",
- "resolved": "https://registry.npmjs.org/yazl/-/yazl-2.5.1.tgz",
- "integrity": "sha512-phENi2PLiHnHb6QBVot+dJnaAZ0xosj7p3fWl+znIjBDlnMI2PsZCJZ306BPTFOaHf5qdDEI8x5qFrSOBN5vrw==",
- "dev": true,
- "requires": {
- "buffer-crc32": "~0.2.3"
- }
- },
- "yocto-queue": {
- "version": "0.1.0",
- "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
- "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
- "dev": true
- }
- }
-}
diff --git a/package.json b/package.json
index 0e8e67f..6270d3a 100644
--- a/package.json
+++ b/package.json
@@ -42,6 +42,7 @@
"comment-json": "^4.2.3",
"follow-redirects": "^1.15.2",
"glob": "^8.0.3",
+ "parinfer": "^3.13.1",
"vscode-languageclient": "^8.0.1"
},
"activationEvents": [
@@ -171,6 +172,28 @@
}
],
"configuration": [
+ {
+ "id": "opengoal-goal",
+ "title": "GOAL Tooling",
+ "properties": {
+ "opengoal.parinferMode": {
+ "type": "string",
+ "default": "DISABLED",
+ "enum": [
+ "DISABLED",
+ "SMART",
+ "PAREN",
+ "INDENT"
+ ],
+ "enumDescriptions": [
+ "Disable parinfer",
+ "Parinfer will try it's best to deduce when to run Paren mode and when to run Indent mode",
+ "Parinfer will handle the indentation, you handle the parens",
+ "Parinfer will handle the parens, you handle the indentation"
+ ]
+ }
+ }
+ },
{
"id": "opengoal-decomp",
"title": "Decompilation",
diff --git a/src/config/config.ts b/src/config/config.ts
index d0af58e..45e7575 100644
--- a/src/config/config.ts
+++ b/src/config/config.ts
@@ -4,6 +4,7 @@ export function getConfig() {
const configOptions = vscode.workspace.getConfiguration("opengoal");
return {
+ opengoalParinferMode: configOptions.get("parinferMode"),
launchLspOnStartup: configOptions.get("launchLspOnStartup"),
opengoalLspVersion: configOptions.get("opengoalLspVersion"),
opengoalLspPath: configOptions.get("opengoalLspPath"),
@@ -109,3 +110,12 @@ export async function updateJak2DecompConfigDirectory(dir: string) {
vscode.ConfigurationTarget.Global
);
}
+
+export async function updateOpengoalParinferMode(mode: string) {
+ const userConfig = vscode.workspace.getConfiguration();
+ await userConfig.update(
+ "opengoal.parinferMode",
+ mode,
+ vscode.ConfigurationTarget.Global
+ );
+}
diff --git a/src/extension.ts b/src/extension.ts
index 75fd4ad..98b67e9 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -14,6 +14,11 @@ import { IRInlayHintsProvider } from "./languages/ir2/ir2-inlay-hinter";
import { OpenGOALDisasmRenameProvider } from "./languages/opengoal/disasm/opengoal-disasm-renamer";
import { activateMiscDecompTools } from "./decomp/misc-tools";
import { IR2RenameProvider } from "./languages/ir2/ir2-renamer";
+import {
+ onChangeSelection,
+ onChangeTextDocument,
+ registerParinferCommands,
+} from "./goal/parinfer/parinfer";
export async function activate(context: vscode.ExtensionContext) {
try {
@@ -75,6 +80,11 @@ export async function activate(context: vscode.ExtensionContext) {
// Start the LSP
lsp.activate(context);
+
+ // Parinfer
+ registerParinferCommands(context);
+ vscode.workspace.onDidChangeTextDocument(onChangeTextDocument);
+ vscode.window.onDidChangeTextEditorSelection(onChangeSelection);
} catch (err) {
vscode.window.showErrorMessage(
"Failed to activate OpenGOAL extension, see logs for details"
diff --git a/src/goal/parinfer/parinfer.ts b/src/goal/parinfer/parinfer.ts
new file mode 100644
index 0000000..77f84e8
--- /dev/null
+++ b/src/goal/parinfer/parinfer.ts
@@ -0,0 +1,346 @@
+import { indentMode, smartMode, parenMode } from "parinfer";
+import * as vscode from "vscode";
+import { integer } from "vscode-languageclient";
+import { getConfig, updateOpengoalParinferMode } from "../../config/config";
+import { getEditorRange } from "../../utils/editor-utils";
+
+// TODO:
+// - iron out some quirks around undoing
+// - tab stops
+// - highlight errors
+// - initial paren mode should also trim empty lines
+
+const opacityDecoration = vscode.window.createTextEditorDecorationType({
+ opacity: "0.6",
+});
+
+function parinferRangeToVSCodeRange(parenTrail: any) {
+ return new vscode.Range(
+ parenTrail.lineNo,
+ parenTrail.startX,
+ parenTrail.lineNo,
+ parenTrail.endX
+ );
+}
+
+function dimParenTrails(editor: vscode.TextEditor, parenTrails: any) {
+ const parenTrailsRanges = parenTrails.map(parinferRangeToVSCodeRange);
+ editor.setDecorations(opacityDecoration, parenTrailsRanges);
+}
+
+function updateParenTrails(editor: vscode.TextEditor, parenTrails: any) {
+ dimParenTrails(editor, parenTrails);
+}
+
+export enum ParinferMode {
+ DISABLED = "DISABLED",
+ INDENT = "INDENT",
+ PAREN = "PAREN",
+ SMART = "SMART",
+}
+
+enum EventQueueItemType {
+ TEXT_CHANGED = "TEXT_CHANGED",
+ SELECTION_CHANGED = "SELECTION_CHANGED",
+}
+
+interface ParinferChangeEntry {
+ lineNo: integer;
+ x: integer;
+ oldText: string;
+ newText: string;
+}
+
+interface EventQueueItem {
+ type: EventQueueItemType;
+ text: string;
+ cursorLine?: integer;
+ cursorX?: integer;
+ changes?: ParinferChangeEntry[];
+ prevCursorLine?: integer;
+ prevCursorX?: integer;
+}
+
+interface ParinferOptions {
+ cursorLine: integer;
+ cursorX: integer;
+ prevCursorLine?: integer;
+ prevCursorX?: integer;
+}
+
+const eventQueue: EventQueueItem[] = [];
+const maxEventQueueSize = 10;
+let currentParinferMode = ParinferMode.DISABLED;
+
+const parinferStatusItem = vscode.window.createStatusBarItem(
+ vscode.StatusBarAlignment.Left,
+ 0
+);
+
+function updateStatus() {
+ switch (currentParinferMode) {
+ case ParinferMode.DISABLED:
+ parinferStatusItem.text = "$(json) Parinfer Disabled";
+ parinferStatusItem.tooltip = "Currently doing nothing! - Change Mode";
+ parinferStatusItem.command = "opengoal.parinfer.changeMode";
+ break;
+ case ParinferMode.SMART:
+ parinferStatusItem.text = "$(json) Smart Parinfer";
+ parinferStatusItem.tooltip =
+ "Automatically runs in Paren or Indent mode - Change Mode";
+ parinferStatusItem.command = "opengoal.parinfer.changeMode";
+ break;
+ case ParinferMode.PAREN:
+ parinferStatusItem.text = "$(json) Paren Parinfer";
+ parinferStatusItem.tooltip =
+ "You handle the parens while parinfer handles indentation! - Change Mode";
+ parinferStatusItem.command = "opengoal.parinfer.changeMode";
+ break;
+ case ParinferMode.INDENT:
+ parinferStatusItem.text = "$(json) Parinfer Disabled";
+ parinferStatusItem.tooltip =
+ "You handle the indentation while parinfer handles the parens! - Change Mode";
+ parinferStatusItem.command = "opengoal.parinfer.changeMode";
+ break;
+ default:
+ break;
+ }
+}
+
+async function changeParinferMode(mode: ParinferMode) {
+ currentParinferMode = mode;
+ await updateOpengoalParinferMode(mode);
+ updateStatus();
+}
+
+function cleanUpEventQueue() {
+ if (eventQueue.length > maxEventQueueSize) {
+ eventQueue.length = maxEventQueueSize;
+ }
+}
+
+setInterval(cleanUpEventQueue, 5 * 1000);
+
+function applyParinfer(
+ editor: vscode.TextEditor,
+ text: string,
+ options: ParinferOptions,
+ mode: ParinferMode
+) {
+ // console.log(`Options Before - ${JSON.stringify(options, null, 2)}`);
+ let parinferResult: any; // TODO - make a type def for this
+ if (mode === ParinferMode.DISABLED) {
+ return;
+ } else if (mode === ParinferMode.PAREN) {
+ parinferResult = parenMode(text, options);
+ } else if (mode === ParinferMode.INDENT) {
+ parinferResult = indentMode(text, options);
+ } else if (mode === ParinferMode.SMART) {
+ parinferResult = smartMode(text, options);
+ }
+
+ // TODO - clear decorations when text is removed
+
+ if (text === parinferResult.text) {
+ updateParenTrails(editor, parinferResult.parenTrails);
+ return;
+ }
+
+ editor
+ .edit(
+ (selectedText) => {
+ selectedText.replace(getEditorRange(editor), parinferResult.text);
+ },
+ {
+ undoStopAfter: false,
+ undoStopBefore: false,
+ }
+ )
+ .then(function (editWasApplied) {
+ if (editWasApplied) {
+ // set the new cursor position
+ const newCursorPosition = new vscode.Position(
+ parinferResult.cursorLine,
+ parinferResult.cursorX
+ );
+ const nextCursor = new vscode.Selection(
+ newCursorPosition,
+ newCursorPosition
+ );
+ editor.selection = nextCursor;
+ updateParenTrails(editor, parinferResult.parenTrails);
+ } else {
+ // TODO: should we do something here if the edit fails?
+ }
+ });
+}
+
+function processEventQueue() {
+ if (
+ eventQueue.length === 0 ||
+ eventQueue[0].type !== EventQueueItemType.SELECTION_CHANGED
+ ) {
+ return;
+ }
+
+ // TODO - wire this up to an event listener too (what order though!)
+ const activeEditor = vscode.window.activeTextEditor;
+ if (activeEditor === undefined) {
+ return;
+ }
+
+ const selectionEvent = eventQueue[0];
+ if (
+ selectionEvent.cursorLine === undefined ||
+ selectionEvent.cursorX === undefined
+ ) {
+ return;
+ }
+ const options: ParinferOptions = {
+ cursorLine: selectionEvent.cursorLine,
+ cursorX: selectionEvent.cursorX,
+ };
+
+ // check the last two events for previous cursor information
+ // TODO - not a huge fan of this code -- prevCursor info is only on selectionEvents
+ // depending on queue ordering is kinda sketchy though
+ if (eventQueue[1] && eventQueue[1].cursorLine !== undefined) {
+ options.prevCursorLine = eventQueue[1].cursorLine;
+ options.prevCursorX = eventQueue[1].cursorX;
+ } else if (eventQueue[2] && eventQueue[2].cursorLine !== undefined) {
+ options.prevCursorLine = eventQueue[2].cursorLine;
+ options.prevCursorX = eventQueue[2].cursorX;
+ }
+
+ // Document change events happen first, then selection change events
+ // In otherwords, they should always be in pairs
+ applyParinfer(
+ activeEditor,
+ selectionEvent.text,
+ options,
+ currentParinferMode
+ );
+}
+
+export function onChangeSelection(
+ event: vscode.TextEditorSelectionChangeEvent
+) {
+ const editor = event.textEditor;
+
+ if (editor.document.languageId !== "opengoal") {
+ return;
+ }
+
+ const selection = event.selections[0];
+
+ const newQueueEntry: EventQueueItem = {
+ type: EventQueueItemType.SELECTION_CHANGED,
+ text: editor.document.getText(),
+ cursorLine: selection.active.line,
+ cursorX: selection.active.character,
+ };
+
+ eventQueue.unshift(newQueueEntry);
+ processEventQueue();
+}
+
+function getTextFromRange(txt: string, range: vscode.Range, length: integer) {
+ if (length === 0) return "";
+
+ const firstLine = range.start.line;
+ const firstChar = range.start.character;
+
+ const lines = txt.split("\n");
+ const line = lines[firstLine];
+
+ return line.substring(firstChar, firstChar + length);
+}
+
+function convertChangeObjects(
+ oldText: string,
+ changeEvent: vscode.TextDocumentContentChangeEvent
+) {
+ return {
+ lineNo: changeEvent.range.start.line,
+ newText: changeEvent.text,
+ oldText: getTextFromRange(
+ oldText,
+ changeEvent.range,
+ changeEvent.rangeLength
+ ),
+ x: changeEvent.range.start.character,
+ };
+}
+
+export function onChangeTextDocument(event: vscode.TextDocumentChangeEvent) {
+ // drop any events that do not contain document changes
+ // (usually the first event to a document)
+ if (event.contentChanges && event.contentChanges.length === 0) {
+ return;
+ }
+
+ if (event.document.languageId !== "opengoal") {
+ return;
+ }
+
+ const newQueueEntry: EventQueueItem = {
+ type: EventQueueItemType.TEXT_CHANGED,
+ text: event.document.getText(),
+ };
+
+ // only create a "changes" property if we have a prior event
+ if (eventQueue[0] && eventQueue[0].text) {
+ const prevText = eventQueue[0].text;
+ const convertFn = convertChangeObjects.bind(null, prevText);
+ newQueueEntry.changes = event.contentChanges.map(convertFn);
+ }
+
+ eventQueue.unshift(newQueueEntry);
+}
+
+function showChangeModeMenu() {
+ const items: vscode.QuickPickItem[] = [
+ {
+ label: ParinferMode.DISABLED,
+ description: "Disable parinfer",
+ },
+ {
+ label: ParinferMode.SMART,
+ description:
+ "Parinfer will try it's best to deduce when to run Paren mode and when to run Indent mode",
+ },
+ {
+ label: ParinferMode.PAREN,
+ description:
+ "Parinfer will handle the indentation, you handle the parens",
+ },
+ {
+ label: ParinferMode.INDENT,
+ description:
+ "Parinfer will handle the parens, you handle the indentation",
+ },
+ ];
+ void vscode.window
+ .showQuickPick(items, { title: "OpenGOAL Change Parinfer Mode" })
+ .then((v) => {
+ if (v !== undefined) {
+ changeParinferMode(v.label as ParinferMode);
+ }
+ });
+}
+
+export function registerParinferCommands(
+ context: vscode.ExtensionContext
+): void {
+ changeParinferMode(
+ (getConfig().opengoalParinferMode as ParinferMode) ?? ParinferMode.DISABLED
+ );
+ updateStatus();
+ parinferStatusItem.show();
+ context.subscriptions.push(
+ vscode.commands.registerCommand(
+ "opengoal.parinfer.changeMode",
+ showChangeModeMenu
+ )
+ );
+}
diff --git a/src/utils/editor-utils.ts b/src/utils/editor-utils.ts
new file mode 100644
index 0000000..a3dcf1d
--- /dev/null
+++ b/src/utils/editor-utils.ts
@@ -0,0 +1,7 @@
+import * as vscode from "vscode";
+
+export function getEditorRange(editor: vscode.TextEditor) {
+ const document = editor.document;
+ const invalidRange = new vscode.Range(0, 0, document.lineCount + 5, 0);
+ return document.validateRange(invalidRange);
+}
diff --git a/yarn.lock b/yarn.lock
new file mode 100644
index 0000000..b49de74
--- /dev/null
+++ b/yarn.lock
@@ -0,0 +1,1827 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@eslint/eslintrc@^1.3.3":
+ version "1.3.3"
+ resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-1.3.3.tgz#2b044ab39fdfa75b4688184f9e573ce3c5b0ff95"
+ integrity sha512-uj3pT6Mg+3t39fvLrj8iuCIJ38zKO9FpGtJ4BBJebJhEwjoT+KLVNCcHT5QC9NGRIEi7fZ0ZR8YRb884auB4Lg==
+ dependencies:
+ ajv "^6.12.4"
+ debug "^4.3.2"
+ espree "^9.4.0"
+ globals "^13.15.0"
+ ignore "^5.2.0"
+ import-fresh "^3.2.1"
+ js-yaml "^4.1.0"
+ minimatch "^3.1.2"
+ strip-json-comments "^3.1.1"
+
+"@humanwhocodes/config-array@^0.11.6":
+ version "0.11.8"
+ resolved "https://registry.yarnpkg.com/@humanwhocodes/config-array/-/config-array-0.11.8.tgz#03595ac2075a4dc0f191cc2131de14fbd7d410b9"
+ integrity sha512-UybHIJzJnR5Qc/MsD9Kr+RpO2h+/P1GhOwdiLPXK5TWk5sgTdu88bTD9UP+CKbPPh5Rni1u0GjAdYQLemG8g+g==
+ dependencies:
+ "@humanwhocodes/object-schema" "^1.2.1"
+ debug "^4.1.1"
+ minimatch "^3.0.5"
+
+"@humanwhocodes/module-importer@^1.0.1":
+ version "1.0.1"
+ resolved "https://registry.yarnpkg.com/@humanwhocodes/module-importer/-/module-importer-1.0.1.tgz#af5b2691a22b44be847b0ca81641c5fb6ad0172c"
+ integrity sha512-bxveV4V8v5Yb4ncFTT3rPSgZBOpCkjfK0y4oVVVJwIuDVBRMDXrPyXRL988i5ap9m9bnyEEjWfm5WkBmtffLfA==
+
+"@humanwhocodes/object-schema@^1.2.1":
+ version "1.2.1"
+ resolved "https://registry.yarnpkg.com/@humanwhocodes/object-schema/-/object-schema-1.2.1.tgz#b520529ec21d8e5945a1851dfd1c32e94e39ff45"
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+
+"@nodelib/fs.scandir@2.1.5":
+ version "2.1.5"
+ resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz#7619c2eb21b25483f6d167548b4cfd5a7488c3d5"
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+ dependencies:
+ "@nodelib/fs.stat" "2.0.5"
+ run-parallel "^1.1.9"
+
+"@nodelib/fs.stat@2.0.5", "@nodelib/fs.stat@^2.0.2":
+ version "2.0.5"
+ resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-2.0.5.tgz#5bd262af94e9d25bd1e71b05deed44876a222e8b"
+ integrity sha512-RkhPPp2zrqDAQA/2jNhnztcPAlv64XdhIp7a7454A5ovI7Bukxgt7MX7udwAu3zg1DcpPU0rz3VV1SeaqvY4+A==
+
+"@nodelib/fs.walk@^1.2.3", "@nodelib/fs.walk@^1.2.8":
+ version "1.2.8"
+ resolved "https://registry.yarnpkg.com/@nodelib/fs.walk/-/fs.walk-1.2.8.tgz#e95737e8bb6746ddedf69c556953494f196fe69a"
+ integrity sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==
+ dependencies:
+ "@nodelib/fs.scandir" "2.1.5"
+ fastq "^1.6.0"
+
+"@types/follow-redirects@^1.14.1":
+ version "1.14.1"
+ resolved "https://registry.yarnpkg.com/@types/follow-redirects/-/follow-redirects-1.14.1.tgz#c08b173be7517ddc53725d0faf9648d4dc7a9cdb"
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+ dependencies:
+ "@types/node" "*"
+
+"@types/glob@^8.0.0":
+ version "8.0.0"
+ resolved "https://registry.yarnpkg.com/@types/glob/-/glob-8.0.0.tgz#321607e9cbaec54f687a0792b2d1d370739455d2"
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+ dependencies:
+ "@types/minimatch" "*"
+ "@types/node" "*"
+
+"@types/json-schema@^7.0.9":
+ version "7.0.11"
+ resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.11.tgz#d421b6c527a3037f7c84433fd2c4229e016863d3"
+ integrity sha512-wOuvG1SN4Us4rez+tylwwwCV1psiNVOkJeM3AUWUNWg/jDQY2+HE/444y5gc+jBmRqASOm2Oeh5c1axHobwRKQ==
+
+"@types/minimatch@*":
+ version "5.1.2"
+ resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-5.1.2.tgz#07508b45797cb81ec3f273011b054cd0755eddca"
+ integrity sha512-K0VQKziLUWkVKiRVrx4a40iPaxTUefQmjtkQofBkYRcoaaL/8rhwDWww9qWbrgicNOgnpIsMxyNIUM4+n6dUIA==
+
+"@types/node@*":
+ version "18.11.15"
+ resolved "https://registry.yarnpkg.com/@types/node/-/node-18.11.15.tgz#de0e1fbd2b22b962d45971431e2ae696643d3f5d"
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+
+"@types/node@^17.0.45":
+ version "17.0.45"
+ resolved "https://registry.yarnpkg.com/@types/node/-/node-17.0.45.tgz#2c0fafd78705e7a18b7906b5201a522719dc5190"
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+
+"@types/semver@^7.3.12":
+ version "7.3.13"
+ resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.3.13.tgz#da4bfd73f49bd541d28920ab0e2bf0ee80f71c91"
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+
+"@types/vscode@^1.74.0":
+ version "1.74.0"
+ resolved "https://registry.yarnpkg.com/@types/vscode/-/vscode-1.74.0.tgz#4adc21b4e7f527b893de3418c21a91f1e503bdcd"
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+
+"@typescript-eslint/eslint-plugin@^5.46.0":
+ version "5.46.1"
+ resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.46.1.tgz#098abb4c9354e19f460d57ab18bff1f676a6cff0"
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+ semver "^7.3.7"
+
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