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File Content: imageloadobserver.js

/**
 * @license Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

/**
 * @module image/image/imageloadobserver
 */

import { Observer } from 'ckeditor5/src/engine';

/**
 * Observes all new images added to the {@link module:engine/view/document~Document},
 * fires {@link module:engine/view/document~Document#event:imageLoaded} and
 * {@link module:engine/view/document~Document#event:layoutChanged} event every time when the new image
 * has been loaded.
 *
 * **Note:** This event is not fired for images that has been added to the document and rendered as `complete` (already loaded).
 *
 * @extends module:engine/view/observer/observer~Observer
 */
export default class ImageLoadObserver extends Observer {
	/**
	 * @inheritDoc
	 */
	observe( domRoot ) {
		this.listenTo( domRoot, 'load', ( event, domEvent ) => {
			const domElement = domEvent.target;

if ( this.checkShouldIgnoreEventFromTarget( domElement ) ) {
				return;
			}

if ( domElement.tagName == 'IMG' ) {
				this._fireEvents( domEvent );
			}
			// Use capture phase for better performance (#4504).
		}, { useCapture: true } );
	}

/**
	 * Fires {@link module:engine/view/document~Document#event:layoutChanged} and
	 * {@link module:engine/view/document~Document#event:imageLoaded}
	 * if observer {@link #isEnabled is enabled}.
	 *
	 * @protected
	 * @param {Event} domEvent The DOM event.
	 */
	_fireEvents( domEvent ) {
		if ( this.isEnabled ) {
			this.document.fire( 'layoutChanged' );
			this.document.fire( 'imageLoaded', domEvent );
		}
	}
}

/**
 * Fired when an <img/> DOM element has been loaded in the DOM root.
 *
 * Introduced by {@link module:image/image/imageloadobserver~ImageLoadObserver}.
 *
 * @see module:image/image/imageloadobserver~ImageLoadObserver
 * @event module:engine/view/document~Document#event:imageLoaded
 * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.
 */

Name	Size	Permission
ui	---	0755
converters.js	10326 bytes	0755
imageblockediting.js	5767 bytes	0755
imageediting.js	2060 bytes	0755
imageinlineediting.js	7105 bytes	0755
imageloadobserver.js	2018 bytes	0755
imagetypecommand.js	3352 bytes	0755
insertimagecommand.js	4537 bytes	0755
utils.js	3673 bytes	0755

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