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iframeview.js
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iframeview.js
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/**
* @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md.
*/
/**
* @module ui/iframe/iframeview
*/
import View from '../view';
/**
* The iframe view class.
*
* const iframe = new IframeView();
*
* iframe.render();
* document.body.appendChild( iframe.element );
*
* iframe.on( 'loaded', () => {
* console.log( 'The iframe has loaded', iframe.element.contentWindow );
* } );
*
* iframe.element.src = 'https://ckeditor.com';
*
* @extends module:ui/view~View
*/
export default class IframeView extends View {
/**
* Creates a new instance of the iframe view.
*
* @param {module:utils/locale~Locale} [locale] The locale instance.
*/
constructor( locale ) {
super( locale );
const bind = this.bindTemplate;
this.setTemplate( {
tag: 'iframe',
attributes: {
class: [
'ck',
'ck-reset_all'
],
// It seems that we need to allow scripts in order to be able to listen to events.
// TODO: Research that. Perhaps the src must be set?
sandbox: 'allow-same-origin allow-scripts'
},
on: {
load: bind.to( 'loaded' )
}
} );
}
/**
* Renders the iframe's {@link #element} and returns a `Promise` for asynchronous
* child `contentDocument` loading process.
*
* @returns {Promise} A promise which resolves once the iframe `contentDocument` has
* been {@link #event:loaded}.
*/
render() {
return new Promise( resolve => {
this.on( 'loaded', resolve );
super.render();
} );
}
}
/**
* Fired when the DOM iframe's `contentDocument` finished loading.
*
* @event loaded
*/