BookStack Code Mirror - bookstack/blob - resources/js/markdown/dom-handlers.ts

   1 import {Clipboard} from "../services/clipboard";
   2 import {MarkdownEditor} from "./index.mjs";
   3 import {debounce} from "../services/util";
   4
   5
   6 export type MarkdownEditorEventMap = Record<string, (event: any) => void>;
   7
   8 export function getMarkdownDomEventHandlers(editor: MarkdownEditor): MarkdownEditorEventMap {
   9
  10     const onScrollDebounced = debounce(editor.actions.syncDisplayPosition.bind(editor.actions), 100, false);
  11     let syncActive = editor.settings.get('scrollSync');
  12     editor.settings.onChange('scrollSync', val => {
  13         syncActive = val;
  14     });
  15
  16     return {
  17         // Handle scroll to sync display view
  18         scroll: (event: Event) => syncActive && onScrollDebounced(event),
  19         // Handle image & content drag n drop
  20         drop: (event: DragEvent) => {
  21             if (!event.dataTransfer) {
  22                 return;
  23             }
  24
  25             const templateId = event.dataTransfer.getData('bookstack/template');
  26             if (templateId) {
  27                 event.preventDefault();
  28                 editor.actions.insertTemplate(templateId, event);
  29             }
  30
  31             const clipboard = new Clipboard(event.dataTransfer);
  32             const clipboardImages = clipboard.getImages();
  33             if (clipboardImages.length > 0) {
  34                 event.stopPropagation();
  35                 event.preventDefault();
  36                 editor.actions.insertClipboardImages(clipboardImages, event);
  37             }
  38         },
  39         // Handle dragover event to allow as drop-target in chrome
  40         dragover: (event: DragEvent) => {
  41             event.preventDefault();
  42         },
  43         // Handle image paste
  44         paste: (event: ClipboardEvent) => {
  45             if (!event.clipboardData) {
  46                 return;
  47             }
  48
  49             const clipboard = new Clipboard(event.clipboardData);
  50
  51             // Don't handle the event ourselves if no items exist of contains table-looking data
  52             if (!clipboard.hasItems() || clipboard.containsTabularData()) {
  53                 return;
  54             }
  55
  56             const images = clipboard.getImages();
  57             for (const image of images) {
  58                 editor.actions.uploadImage(image);
  59             }
  60         },
  61     };
  62 }