BookStack Code Mirror - bookstack/blob - resources/js/components/markdown-editor.js

   1 import {debounce} from "../services/util";
   2 import {Component} from "./component";
   3 import {init as initEditor} from "../markdown/editor";
   4
   5 export class MarkdownEditor extends Component {
   6
   7     setup() {
   8         this.elem = this.$el;
   9
  10         this.pageId = this.$opts.pageId;
  11         this.textDirection = this.$opts.textDirection;
  12         this.imageUploadErrorText = this.$opts.imageUploadErrorText;
  13         this.serverUploadLimitText = this.$opts.serverUploadLimitText;
  14
  15         this.display = this.$refs.display;
  16         this.input = this.$refs.input;
  17         this.divider = this.$refs.divider;
  18         this.displayWrap = this.$refs.displayWrap;
  19
  20         const settingContainer = this.$refs.settingContainer;
  21         const settingInputs = settingContainer.querySelectorAll('input[type="checkbox"]');
  22
  23         this.editor = null;
  24         initEditor({
  25             pageId: this.pageId,
  26             container: this.elem,
  27             displayEl: this.display,
  28             inputEl: this.input,
  29             drawioUrl: this.getDrawioUrl(),
  30             settingInputs: Array.from(settingInputs),
  31             text: {
  32                 serverUploadLimit: this.serverUploadLimitText,
  33                 imageUploadError: this.imageUploadErrorText,
  34             },
  35         }).then(editor => {
  36             this.editor = editor;
  37             this.setupListeners();
  38             this.emitEditorEvents();
  39             this.scrollToTextIfNeeded();
  40             this.editor.actions.updateAndRender();
  41         });
  42     }
  43
  44     emitEditorEvents() {
  45         window.$events.emitPublic(this.elem, 'editor-markdown::setup', {
  46             markdownIt: this.editor.markdown.getRenderer(),
  47             displayEl: this.display,
  48             // TODO - change to codeMirrorView?
  49             // codeMirrorInstance: this.editor.cm,
  50         });
  51     }
  52
  53     setupListeners() {
  54
  55         // Button actions
  56         this.elem.addEventListener('click', event => {
  57             let button = event.target.closest('button[data-action]');
  58             if (button === null) return;
  59
  60             const action = button.getAttribute('data-action');
  61             if (action === 'insertImage') this.editor.actions.showImageInsert();
  62             if (action === 'insertLink') this.editor.actions.showLinkSelector();
  63             if (action === 'insertDrawing' && (event.ctrlKey || event.metaKey)) {
  64                 this.editor.actions.showImageManager();
  65                 return;
  66             }
  67             if (action === 'insertDrawing') this.editor.actions.startDrawing();
  68             if (action === 'fullscreen') this.editor.actions.fullScreen();
  69         });
  70
  71         // Mobile section toggling
  72         this.elem.addEventListener('click', event => {
  73             const toolbarLabel = event.target.closest('.editor-toolbar-label');
  74             if (!toolbarLabel) return;
  75
  76             const currentActiveSections = this.elem.querySelectorAll('.markdown-editor-wrap');
  77             for (const activeElem of currentActiveSections) {
  78                 activeElem.classList.remove('active');
  79             }
  80
  81             toolbarLabel.closest('.markdown-editor-wrap').classList.add('active');
  82         });
  83
  84         // Refresh CodeMirror on container resize
  85         // TODO
  86         // const resizeDebounced = debounce(() => this.editor.cm.refresh(), 100, false);
  87         // const observer = new ResizeObserver(resizeDebounced);
  88         // observer.observe(this.elem);
  89
  90         this.handleDividerDrag();
  91     }
  92
  93     handleDividerDrag() {
  94         this.divider.addEventListener('pointerdown', event => {
  95             const wrapRect = this.elem.getBoundingClientRect();
  96             const moveListener = (event) => {
  97                 const xRel = event.pageX - wrapRect.left;
  98                 const xPct = Math.min(Math.max(20, Math.floor((xRel / wrapRect.width) * 100)), 80);
  99                 this.displayWrap.style.flexBasis = `${100-xPct}%`;
 100                 this.editor.settings.set('editorWidth', xPct);
 101             };
 102             const upListener = (event) => {
 103                 window.removeEventListener('pointermove', moveListener);
 104                 window.removeEventListener('pointerup', upListener);
 105                 this.display.style.pointerEvents = null;
 106                 document.body.style.userSelect = null;
 107                 // TODO
 108                 // this.editor.cm.refresh();
 109             };
 110
 111             this.display.style.pointerEvents = 'none';
 112             document.body.style.userSelect = 'none';
 113             window.addEventListener('pointermove', moveListener);
 114             window.addEventListener('pointerup', upListener);
 115         });
 116         const widthSetting = this.editor.settings.get('editorWidth');
 117         if (widthSetting) {
 118             this.displayWrap.style.flexBasis = `${100-widthSetting}%`;
 119         }
 120     }
 121
 122     scrollToTextIfNeeded() {
 123         const queryParams = (new URL(window.location)).searchParams;
 124         const scrollText = queryParams.get('content-text');
 125         if (scrollText) {
 126             this.editor.actions.scrollToText(scrollText);
 127         }
 128     }
 129
 130     /**
 131      * Get the URL for the configured drawio instance.
 132      * @returns {String}
 133      */
 134     getDrawioUrl() {
 135         const drawioAttrEl = document.querySelector('[drawio-url]');
 136         if (!drawioAttrEl) {
 137             return '';
 138         }
 139
 140         return drawioAttrEl.getAttribute('drawio-url') || '';
 141     }
 142
 143     /**
 144      * Get the content of this editor.
 145      * Used by the parent page editor component.
 146      * @return {{html: String, markdown: String}}
 147      */
 148     getContent() {
 149         return this.editor.actions.getContent();
 150     }
 151
 152 }