BookStack Code Mirror - bookstack/blob - resources/js/wysiwyg/index.ts

   1 import {createEditor, CreateEditorArgs, LexicalEditor} from 'lexical';
   2 import {createEmptyHistoryState, registerHistory} from '@lexical/history';
   3 import {registerRichText} from '@lexical/rich-text';
   4 import {mergeRegister} from '@lexical/utils';
   5 import {getNodesForPageEditor, registerCommonNodeMutationListeners} from './nodes';
   6 import {buildEditorUI} from "./ui";
   7 import {getEditorContentAsHtml, setEditorContentFromHtml} from "./utils/actions";
   8 import {registerTableResizer} from "./ui/framework/helpers/table-resizer";
   9 import {EditorUiContext} from "./ui/framework/core";
  10 import {listen as listenToCommonEvents} from "./services/common-events";
  11 import {handleDropEvents} from "./services/drop-handling";
  12 import {registerTaskListHandler} from "./ui/framework/helpers/task-list-handler";
  13 import {registerTableSelectionHandler} from "./ui/framework/helpers/table-selection-handler";
  14 import {el} from "./utils/dom";
  15
  16 export function createPageEditorInstance(container: HTMLElement, htmlContent: string, options: Record<string, any> = {}): SimpleWysiwygEditorInterface {
  17     const config: CreateEditorArgs = {
  18         namespace: 'BookStackPageEditor',
  19         nodes: getNodesForPageEditor(),
  20         onError: console.error,
  21         theme: {
  22             text: {
  23                 bold: 'editor-theme-bold',
  24                 code: 'editor-theme-code',
  25                 italic: 'editor-theme-italic',
  26                 strikethrough: 'editor-theme-strikethrough',
  27                 subscript: 'editor-theme-subscript',
  28                 superscript: 'editor-theme-superscript',
  29                 underline: 'editor-theme-underline',
  30                 underlineStrikethrough: 'editor-theme-underline-strikethrough',
  31             }
  32         }
  33     };
  34
  35     const editArea = el('div', {
  36         contenteditable: 'true',
  37         class: 'editor-content-area page-content',
  38     });
  39     const editWrap = el('div', {
  40         class: 'editor-content-wrap',
  41     }, [editArea]);
  42     container.append(editWrap);
  43     container.classList.add('editor-container');
  44
  45     const editor = createEditor(config);
  46     editor.setRootElement(editArea);
  47
  48     mergeRegister(
  49         registerRichText(editor),
  50         registerHistory(editor, createEmptyHistoryState(), 300),
  51         registerTableResizer(editor, editWrap),
  52         registerTableSelectionHandler(editor),
  53         registerTaskListHandler(editor, editArea),
  54     );
  55
  56     listenToCommonEvents(editor);
  57     handleDropEvents(editor);
  58
  59     setEditorContentFromHtml(editor, htmlContent);
  60
  61     const debugView = document.getElementById('lexical-debug');
  62     if (debugView) {
  63         debugView.hidden = true;
  64     }
  65
  66     let changeFromLoading = true;
  67     editor.registerUpdateListener(({editorState, dirtyElements, dirtyLeaves}) => {
  68
  69         // Emit change event to component system (for draft detection) on actual user content change
  70         if (dirtyElements.size > 0 || dirtyLeaves.size > 0) {
  71             if (changeFromLoading) {
  72                 changeFromLoading = false;
  73             } else {
  74                 window.$events.emit('editor-html-change', '');
  75             }
  76         }
  77
  78         // Debug logic
  79         // console.log('editorState', editorState.toJSON());
  80         if (debugView) {
  81             debugView.textContent = JSON.stringify(editorState.toJSON(), null, 2);
  82         }
  83     });
  84
  85     // @ts-ignore
  86     window.debugEditorState = () => {
  87         console.log(editor.getEditorState().toJSON());
  88     };
  89
  90     const context: EditorUiContext = buildEditorUI(container, editArea, editWrap, editor, options);
  91     registerCommonNodeMutationListeners(context);
  92
  93     return new SimpleWysiwygEditorInterface(editor);
  94 }
  95
  96 export class SimpleWysiwygEditorInterface {
  97     protected editor: LexicalEditor;
  98
  99     constructor(editor: LexicalEditor) {
 100         this.editor = editor;
 101     }
 102
 103     async getContentAsHtml(): Promise<string> {
 104         return await getEditorContentAsHtml(this.editor);
 105     }
 106 }