adding-support-for-paragraph - making blockTypes configurable

Summary:
This fixes issue facebookarchive#204

- Including paragraph on converter
- Updating website and demo
- Updating example
Closes facebookarchive#205

Reviewed By: ezequiel

Differential Revision: D3147267

fb-gh-sync-id: ae51df9b838597066a699dced879b2795e59db26
fbshipit-source-id: ae51df9b838597066a699dced879b2795e59db26

examples/rich/rich.html

@@ -33,12 +33,34 @@
     <script type="text/babel">
       'use strict';
 
-      const {Editor, EditorState, RichUtils} = Draft;
+      const {
+        Editor,
+        EditorState,
+        RichUtils,
+        DefaultDraftBlockRenderMap,
+      } = Draft;
+
+      const {Map} = immutable;
 
       class RichEditorExample extends React.Component {
         constructor(props) {
           super(props);
-          this.state = {editorState: EditorState.createEmpty()};
+
+          const customBlockRendering = Map({
+            'paragraph': {
+              element: 'p',
+            },
+            'unstyled': {
+              element: 'p',
+            },
+          });
+
+          this.state = {
+            blockRenderMap: DefaultDraftBlockRenderMap.merge(
+              customBlockRenderMap,
+            ),
+            editorState: EditorState.createEmpty(),
+          };
 
           this.focus = () => this.refs.editor.focus();
           this.onChange = (editorState) => this.setState({editorState});
@@ -101,6 +123,7 @@
               />
               <div className={className} onClick={this.focus}>
                 <Editor
+                  blockRenderMap={this.state.blockRenderMap}
                   blockStyleFn={getBlockStyle}
                   customStyleMap={styleMap}
                   editorState={editorState}
@@ -157,6 +180,7 @@
       }
 
       const BLOCK_TYPES = [
+        {label: 'P', style:  'paragraph'},
         {label: 'H1', style: 'header-one'},
         {label: 'H2', style: 'header-two'},
         {label: 'H3', style: 'header-three'},

src/Draft.js

@@ -17,6 +17,8 @@ const CharacterMetadata = require('CharacterMetadata');
 const CompositeDraftDecorator = require('CompositeDraftDecorator');
 const ContentBlock = require('ContentBlock');
 const ContentState = require('ContentState');
+const DefaultDraftBlockRenderMap = require('DefaultDraftBlockRenderMap');
+const DefaultDraftInlineStyle = require('DefaultDraftInlineStyle');
 const DraftEditor = require('DraftEditor.react');
 const DraftEditorBlock = require('DraftEditorBlock.react');
 const DraftModifier = require('DraftModifier');
@@ -55,6 +57,9 @@ const DraftPublic = {
   Modifier: DraftModifier,
   RichUtils: RichTextEditorUtil,
 
+  DefaultDraftBlockRenderMap,
+  DefaultDraftInlineStyle,
+
   convertFromHTML: convertFromHTMLToContentBlocks,
   convertFromRaw: convertFromRawToDraftState,
   convertToRaw: convertFromDraftStateToRaw,

src/component/base/DraftEditor.react.js

@@ -13,6 +13,7 @@
 
 'use strict';
 
+const DefaultDraftBlockRenderMap = require('DefaultDraftBlockRenderMap');
 const DefaultDraftInlineStyle = require('DefaultDraftInlineStyle');
 const DraftEditorCompositionHandler = require('DraftEditorCompositionHandler');
 const DraftEditorContents = require('DraftEditorContents.react');
@@ -34,7 +35,6 @@ const nullthrows = require('nullthrows');
 const getScrollPosition = require('getScrollPosition');
 
 import type {BlockMap} from 'BlockMap';
-import type ContentBlock from 'ContentBlock';
 import type {DraftEditorModes} from 'DraftEditorModes';
 import type {DraftEditorProps} from 'DraftEditorProps';
 import type {DraftScrollPosition} from 'DraftScrollPosition';
@@ -55,15 +55,6 @@ const handlerMap = {
   'render': null,
 };
 
-type DefaultProps = {
-  blockRendererFn?: (block: ContentBlock) => ?Object;
-  blockStyleFn?: (type: number) => string,
-  keyBindingFn?: (e: SyntheticKeyboardEvent) => ?string,
-  readOnly?: boolean,
-  spellCheck?: boolean,
-  stripPastedStyles?: boolean,
-};
-
 type State = {
   containerKey: number,
 };
@@ -73,11 +64,12 @@ type State = {
  * div, and provides a wide variety of useful function props for managing the
  * state of the editor. See `DraftEditorProps` for details.
  */
-class DraftEditor
-  extends React.Component<DefaultProps, DraftEditorProps, State> {
+class DraftEditor extends React.Component {
+  props: DraftEditorProps;
   state: State;
 
   static defaultProps = {
+    blockRenderMap: DefaultDraftBlockRenderMap,
     blockRendererFn: emptyFunction.thatReturnsNull,
     blockStyleFn: emptyFunction.thatReturns(''),
     keyBindingFn: getDefaultKeyBinding,
@@ -216,6 +208,7 @@ class DraftEditor
         />
       );
     }
+    return null;
   }
 
   render(): React.Element {
@@ -283,8 +276,9 @@ class DraftEditor
             suppressContentEditableWarning
             tabIndex={this.props.tabIndex}>
             <DraftEditorContents
-              blockRendererFn={nullthrows(this.props.blockRendererFn)}
-              blockStyleFn={nullthrows(this.props.blockStyleFn)}
+              blockRenderMap={this.props.blockRenderMap}
+              blockRendererFn={this.props.blockRendererFn}
+              blockStyleFn={this.props.blockStyleFn}
               customStyleMap={
                 {...DefaultDraftInlineStyle, ...this.props.customStyleMap}
               }

src/component/base/DraftEditorProps.js

@@ -13,8 +13,9 @@
 'use strict';
 
 import type ContentBlock from 'ContentBlock';
-import type {DraftEditorCommand} from 'DraftEditorCommand';
+import type {DraftBlockRenderMap} from 'DraftBlockRenderMap';
 import type {DraftDragType} from 'DraftDragType';
+import type {DraftEditorCommand} from 'DraftEditorCommand';
 import type {DraftTextAlignment} from 'DraftTextAlignment';
 import type EditorState from 'EditorState';
 import type SelectionState from 'SelectionState';
@@ -129,4 +130,9 @@ export type DraftEditorProps = {
   // Provide a map of inline style names corresponding to CSS style objects
   // that will be rendered for matching ranges.
   customStyleMap?: Object,
+
+  // Provide a map of block rendering configurations. Each block type maps to
+  // an element tag and am optional react element wrapper. This configuration
+  // is used for both rendering and paste processing.
+  blockRenderMap: DraftBlockRenderMap,
 };

src/component/contents/DraftEditorContents.react.js

@@ -19,8 +19,6 @@ const EditorState = require('EditorState');
 const React = require('React');
 
 const cx = require('cx');
-const getElementForBlockType = require('getElementForBlockType');
-const getWrapperTemplateForBlockType = require('getWrapperTemplateForBlockType');
 const joinClasses = require('joinClasses');
 const nullthrows = require('nullthrows');
 
@@ -93,7 +91,13 @@ class DraftEditorContents extends React.Component {
   }
 
   render(): React.Element {
-    const {blockRendererFn, customStyleMap, editorState} = this.props;
+    const {
+      blockRenderMap,
+      blockRendererFn,
+      customStyleMap,
+      editorState,
+    } = this.props;
+
     const content = editorState.getCurrentContent();
     const selection = editorState.getSelection();
     const forceSelection = editorState.mustForceSelection();
@@ -136,10 +140,19 @@ class DraftEditorContents extends React.Component {
         tree: editorState.getBlockTree(key),
       };
 
-      wrapperTemplate = getWrapperTemplateForBlockType(blockType);
+      // Block render map must have a configuration specified for this
+      // block type.
+      const configForType = nullthrows(blockRenderMap.get(blockType));
+
+      wrapperTemplate = configForType.wrapper;
+
       const useNewWrapper = wrapperTemplate !== currentWrapperTemplate;
 
-      const Element = getElementForBlockType(blockType);
+      const Element = (
+        blockRenderMap.get(blockType).element ||
+        blockRenderMap.get('unstyled').element
+      );
+
       const depth = block.getDepth();
       let className = this.props.blockStyleFn(block);
 

src/component/handlers/edit/editOnPaste.js

@@ -128,7 +128,10 @@ function editOnPaste(e: SyntheticClipboardEvent): void {
 
     // If there is html paste data, try to parse that.
     if (html) {
-      var htmlFragment = DraftPasteProcessor.processHTML(html);
+      var htmlFragment = DraftPasteProcessor.processHTML(
+        html,
+        this.props.blockRenderMap
+      );
       if (htmlFragment) {
         var htmlMap = BlockMapBuilder.createFromArray(htmlFragment);
         this.update(insertFragment(this.props.editorState, htmlMap));

src/model/constants/DraftBlockTag.js

@@ -0,0 +1,31 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule DraftBlockTag
+ * @flow
+ */
+
+'use strict';
+
+/**
+ * The list of default valid block tags.
+ */
+export type DraftBlockTag = (
+  'div' |
+  'p' |
+  'h1' |
+  'h2' |
+  'h3' |
+  'h4' |
+  'h5' |
+  'h6' |
+  'li' |
+  'blockquote' |
+  'pre' |
+  'figure'
+);

src/model/constants/DraftBlockType.js

@@ -27,7 +27,6 @@ export type DraftBlockType = (
   'unordered-list-item' |
   'ordered-list-item' |
   'blockquote' |
-  'pullquote' |
   'code-block' |
   'atomic'
 );