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import { EventEmitter } from 'eventemitter3';
import instances from './instances.js';
import logger from './logger.js';
const debug = logger('quill:events');
const EVENTS = ['selectionchange', 'mousedown', 'mouseup', 'click'];
EVENTS.forEach(eventName => {
  document.addEventListener(eventName, function () {
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    Array.from(document.querySelectorAll('.ql-container')).forEach(node => {
      const quill = instances.get(node);
      if (quill && quill.emitter) {
        quill.emitter.handleDOM(...args);
      }
    });
  });
});
class Emitter extends EventEmitter {
  static events = {
    EDITOR_CHANGE: 'editor-change',
    SCROLL_BEFORE_UPDATE: 'scroll-before-update',
    SCROLL_BLOT_MOUNT: 'scroll-blot-mount',
    SCROLL_BLOT_UNMOUNT: 'scroll-blot-unmount',
    SCROLL_OPTIMIZE: 'scroll-optimize',
    SCROLL_UPDATE: 'scroll-update',
    SCROLL_EMBED_UPDATE: 'scroll-embed-update',
    SELECTION_CHANGE: 'selection-change',
    TEXT_CHANGE: 'text-change',
    COMPOSITION_BEFORE_START: 'composition-before-start',
    COMPOSITION_START: 'composition-start',
    COMPOSITION_BEFORE_END: 'composition-before-end',
    COMPOSITION_END: 'composition-end'
  };
  static sources = {
    API: 'api',
    SILENT: 'silent',
    USER: 'user'
  };
  constructor() {
    super();
    this.domListeners = {};
    this.on('error', debug.error);
  }
  emit() {
    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      args[_key2] = arguments[_key2];
    }
    debug.log.call(debug, ...args);
    // @ts-expect-error
    return super.emit(...args);
  }
  handleDOM(event) {
    for (var _len3 = arguments.length, args = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
      args[_key3 - 1] = arguments[_key3];
    }
    (this.domListeners[event.type] || []).forEach(_ref => {
      let {
        node,
        handler
      } = _ref;
      if (event.target === node || node.contains(event.target)) {
        handler(event, ...args);
      }
    });
  }
  listenDOM(eventName, node, handler) {
    if (!this.domListeners[eventName]) {
      this.domListeners[eventName] = [];
    }
    this.domListeners[eventName].push({
      node,
      handler
    });
  }
}
export default Emitter;
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