Content Model: Do color transform for entity when copy/paste

packages-content-model/roosterjs-content-model-editor/lib/editor/corePlugins/ContentModelCopyPastePlugin.ts

@@ -33,6 +33,7 @@ import {
     ClipboardData,
     SelectionRangeTypes,
     SelectionRangeEx,
+    ColorTransformDirection,
 } from 'roosterjs-editor-types';
 
 /**
@@ -94,7 +95,24 @@ export default class ContentModelCopyPastePlugin implements PluginWithState<Copy
         if (selection && !selection.areAllCollapsed) {
             const model = this.editor.createContentModel();
 
-            const pasteModel = cloneModel(model);
+            const pasteModel = cloneModel(model, {
+                includeCachedElement: this.editor.isDarkMode()
+                    ? (node, type) => {
+                          if (type == 'cache') {
+                              return undefined;
+                          } else {
+                              const result = node.cloneNode(true /*deep*/) as HTMLElement;
+
+                              this.editor?.transformToDarkColor(
+                                  result,
+                                  ColorTransformDirection.DarkToLight
+                              );
+
+                              return result;
+                          }
+                      }
+                    : false,
+            });
             if (selection.type === SelectionRangeTypes.TableSelection) {
                 iterateSelections([pasteModel], (path, tableContext) => {
                     if (tableContext?.table) {

packages-content-model/roosterjs-content-model-editor/lib/modelApi/common/cloneModel.ts

@@ -27,18 +27,27 @@ import type {
     ContentModelListLevel,
 } from 'roosterjs-content-model-types';
 
+/**
+ * @internal
+ */
+export type CachedElementHandler = (
+    node: HTMLElement,
+    type: 'general' | 'entity' | 'cache'
+) => HTMLElement | undefined;
+
 /**
  * @internal
  * Options for cloneModel API
  */
 export interface CloneModelOptions {
     /**
-     * When pass false or not passed, the cloned model will not have cached element even they exist in original model.
-     * For entity and general model, a cloned wrapper element will be added into cloned model. So that the cloned model will be fully disconnected from the original one
-     * When pass true, cloned model will have the same cached element and element wrapper with the original model
-     * @default true
+     * Specify how to deal with cached element, including cached block element, element in General Model, and wrapper element in Entity
+     * - True: Cloned model will have the same reference to the cached element
+     * - False/Not passed: For cached block element, cached element will be undefined. For General Model and Entity, the element will have deep clone and assign to the cloned model
+     * - A callback: invoke the callback with the source cached element and a string to specify model type, let the callback return the expected value of cached element.
+     * For General Model and Entity, the callback must return a valid element, otherwise there will be exception thrown.
      */
-    includeCachedElement?: boolean;
+    includeCachedElement?: boolean | CachedElementHandler;
 }
 
 /**
@@ -167,9 +176,7 @@ function cloneEntity(entity: ContentModelEntity, options: CloneModelOptions): Co
 
     return Object.assign(
         {
-            wrapper: options.includeCachedElement
-                ? wrapper
-                : (wrapper.cloneNode(true /*deep*/) as HTMLElement),
+            wrapper: handleCachedElement(wrapper, 'entity', options),
             isReadonly,
             type,
             id,
@@ -187,7 +194,7 @@ function cloneParagraph(
 
     const newParagraph: ContentModelParagraph = Object.assign(
         {
-            cachedElement: options.includeCachedElement ? cachedElement : undefined,
+            cachedElement: handleCachedElement(cachedElement, 'cache', options),
             isImplicit,
             segments: segments.map(segment => cloneSegment(segment, options)),
             segmentFormat: segmentFormat ? { ...segmentFormat } : undefined,
@@ -213,7 +220,7 @@ function cloneTable(table: ContentModelTable, options: CloneModelOptions): Conte
 
     return Object.assign(
         {
-            cachedElement: options.includeCachedElement ? cachedElement : undefined,
+            cachedElement: handleCachedElement(cachedElement, 'cache', options),
             widths: Array.from(widths),
             rows: rows.map(row => cloneTableRow(row, options)),
         },
@@ -231,7 +238,7 @@ function cloneTableRow(
     return Object.assign(
         {
             height,
-            cachedElement: options.includeCachedElement ? cachedElement : undefined,
+            cachedElement: handleCachedElement(cachedElement, 'cache', options),
             cells: cells.map(cell => cloneTableCell(cell, options)),
         },
         cloneModelWithFormat(row)
@@ -246,7 +253,7 @@ function cloneTableCell(
 
     return Object.assign(
         {
-            cachedElement: options.includeCachedElement ? cachedElement : undefined,
+            cachedElement: handleCachedElement(cachedElement, 'cache', options),
             isSelected,
             spanAbove,
             spanLeft,
@@ -264,7 +271,7 @@ function cloneFormatContainer(
 ): ContentModelFormatContainer {
     const { tagName, cachedElement } = container;
     const newContainer: ContentModelFormatContainer = Object.assign(
-        { tagName, cachedElement: options.includeCachedElement ? cachedElement : undefined },
+        { tagName, cachedElement: handleCachedElement(cachedElement, 'cache', options) },
         cloneBlockBase(container),
         cloneBlockGroupBase(container, options)
     );
@@ -307,7 +314,7 @@ function cloneDivider(
         {
             isSelected,
             tagName,
-            cachedElement: options.includeCachedElement ? cachedElement : undefined,
+            cachedElement: handleCachedElement(cachedElement, 'cache', options),
         },
         cloneBlockBase(divider)
     );
@@ -321,9 +328,7 @@ function cloneGeneralBlock(
 
     return Object.assign(
         {
-            element: options.includeCachedElement
-                ? element
-                : (element.cloneNode(true /*deep*/) as HTMLElement),
+            element: handleCachedElement(element, 'general', options),
         },
         cloneBlockBase(general),
         cloneBlockGroupBase(general, options)
@@ -355,3 +360,39 @@ function cloneText(textSegment: ContentModelText): ContentModelText {
     const { text } = textSegment;
     return Object.assign({ text }, cloneSegmentBase(textSegment));
 }
+
+function handleCachedElement<T extends HTMLElement>(
+    node: T,
+    type: 'general' | 'entity',
+    options: CloneModelOptions
+): T;
+
+function handleCachedElement<T extends HTMLElement>(
+    node: T | undefined,
+    type: 'cache',
+    options: CloneModelOptions
+): T | undefined;
+
+function handleCachedElement<T extends HTMLElement>(
+    node: T | undefined,
+    type: 'general' | 'entity' | 'cache',
+    options: CloneModelOptions
+): T | undefined {
+    const { includeCachedElement } = options;
+
+    if (!node) {
+        return undefined;
+    } else if (!includeCachedElement) {
+        return type == 'cache' ? undefined : (node.cloneNode(true /*deep*/) as T);
+    } else if (includeCachedElement === true) {
+        return node;
+    } else {
+        const result = includeCachedElement(node, type) as T | undefined;
+
+        if ((type == 'general' || type == 'entity') && !result) {
+            throw new Error('Entity and General Model must has wrapper element');
+        }
+
+        return result;
+    }
+}

packages-content-model/roosterjs-content-model-editor/lib/modelApi/common/mergeModel.ts

@@ -83,12 +83,16 @@ export function mergeModel(
 
             switch (block.blockType) {
                 case 'Paragraph':
-                    mergeParagraph(insertPosition, block, i == 0);
+                    mergeParagraph(insertPosition, block, i == 0, context);
                     break;
 
                 case 'Divider':
+                    insertBlock(insertPosition, block);
+                    break;
+
                 case 'Entity':
                     insertBlock(insertPosition, block);
+                    context?.newEntities.push(block);
                     break;
 
                 case 'Table':
@@ -120,7 +124,8 @@ export function mergeModel(
 function mergeParagraph(
     markerPosition: InsertPoint,
     newPara: ContentModelParagraph,
-    mergeToCurrentParagraph: boolean
+    mergeToCurrentParagraph: boolean,
+    context?: FormatWithContentModelContext
 ) {
     const { paragraph, marker } = markerPosition;
     const newParagraph = mergeToCurrentParagraph
@@ -129,7 +134,15 @@ function mergeParagraph(
     const segmentIndex = newParagraph.segments.indexOf(marker);
 
     if (segmentIndex >= 0) {
-        newParagraph.segments.splice(segmentIndex, 0, ...newPara.segments);
+        for (let i = 0; i < newPara.segments.length; i++) {
+            const segment = newPara.segments[i];
+
+            newParagraph.segments.splice(segmentIndex + i, 0, segment);
+
+            if (context && segment.segmentType == 'Entity') {
+                context.newEntities.push(segment);
+            }
+        }
     }
 
     if (newPara.decorator) {

packages-content-model/roosterjs-content-model-editor/lib/publicApi/entity/insertEntity.ts

@@ -1,6 +1,6 @@
 import { ChangeSource, Entity, SelectionRangeEx } from 'roosterjs-editor-types';
 import { commitEntity, getEntityFromElement } from 'roosterjs-editor-dom';
-import { createEntity } from 'roosterjs-content-model-dom';
+import { createEntity, normalizeContentModel } from 'roosterjs-content-model-dom';
 import { formatWithContentModel } from '../utils/formatWithContentModel';
 import { IContentModelEditor } from '../../publicTypes/IContentModelEditor';
 import { insertEntityModel } from '../../modelApi/entity/insertEntityModel';
@@ -84,7 +84,10 @@ export default function insertEntity(
                 context
             );
 
+            normalizeContentModel(model);
+
             context.skipUndoSnapshot = skipUndoSnapshot;
+            context.newEntities.push(entityModel);
 
             return true;
         },
@@ -93,10 +96,6 @@ export default function insertEntity(
         }
     );
 
-    if (editor.isDarkMode()) {
-        editor.transformToDarkColor(wrapper);
-    }
-
     const newEntity = getEntityFromElement(wrapper);
 
     editor.triggerContentChangedEvent(ChangeSource.InsertEntity, newEntity);

packages-content-model/roosterjs-content-model-editor/lib/publicApi/utils/formatWithContentModel.ts

@@ -36,12 +36,14 @@ export function formatWithContentModel(
 
     const model = editor.createContentModel(undefined /*option*/, selectionOverride);
     const context: FormatWithContentModelContext = {
+        newEntities: [],
         deletedEntities: [],
         rawEvent,
     };
 
     if (formatter(model, context)) {
         const callback = () => {
+            handleNewEntities(editor, context);
             handleDeletedEntities(editor, context);
 
             if (model) {
@@ -81,6 +83,18 @@ export function formatWithContentModel(
     }
 }
 
+function handleNewEntities(editor: IContentModelEditor, context: FormatWithContentModelContext) {
+    // TODO: Ideally we can trigger NewEntity event here. But to be compatible with original editor code, we don't do it here for now.
+    // Once Content Model Editor can be standalone, we can change this behavior to move triggering NewEntity event code
+    // from EntityPlugin to here
+
+    if (editor.isDarkMode()) {
+        context.newEntities.forEach(entity => {
+            editor.transformToDarkColor(entity.wrapper);
+        });
+    }
+}
+
 function handleDeletedEntities(
     editor: IContentModelEditor,
     context: FormatWithContentModelContext

packages-content-model/roosterjs-content-model-editor/lib/publicTypes/parameter/FormatWithContentModelContext.ts

@@ -24,6 +24,11 @@ export interface DeletedEntity {
  * Context object for API formatWithContentModel
  */
 export interface FormatWithContentModelContext {
+    /**
+     * New entities added during the format process
+     */
+    readonly newEntities: ContentModelEntity[];
+
     /**
      * Entities got deleted during formatting. Need to be set by the formatter function
      */