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/**
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* @license Copyright (c) 2003-2014, Clemens Krack. All rights reserved.
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* @author Clemens Krack <info@clemenskrack.com>
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* For licensing, see LICENSE.md or http://ckeditor.com/license
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*/
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'use strict';
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( function() {
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CKEDITOR.plugins.add( 'imageresponsive', {
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lang: 'en,de',
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requires: 'widget,dialog,image2',
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beforeInit: function(editor) {
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editor.on('widgetDefinition', function(e) {
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var widget = e.data;
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// figure out if this is the image dialog.
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if(widget.name != 'image')
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return;
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// should not happen but anyway...
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if(!widget.allowedContent.img || !widget.allowedContent.img.attributes)
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return;
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if(widget.allowedContent.img.attributes.indexOf('srcset') == -1)
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widget.allowedContent.img.attributes += ',srcset'
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if(widget.allowedContent.img.attributes.indexOf('sizes') == -1)
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widget.allowedContent.img.attributes += ',sizes'
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});
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},
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init: function(editor) {
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// bind to widget#instanceCreated so we can see when the image widget is about to be initiated
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editor.widgets.on('instanceCreated', function(e) {
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var widget = e.data;
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// figure out if this is the image dialog.
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if(widget.name != 'image')
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return;
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// register handler for data
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widget.on('data', function(e) {
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widget = e.data;
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// keep srcset & sizes attributes only when set.
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if(widget.srcset)
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e.sender.parts.image.setAttribute('srcset', widget.srcset);
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else
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e.sender.parts.image.removeAttribute('srcset');
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if(widget.sizes)
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e.sender.parts.image.setAttribute('sizes', widget.sizes);
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else
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e.sender.parts.image.removeAttribute('sizes');
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});
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// set data from existing variables.
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var image = widget.element;
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// since the img-tag can be wrapped with a caption, make sure we use the right element.
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if(image.getName() != 'img')
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image = image.findOne('img');
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var data = {
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srcset: image.getAttribute( 'srcset' ) || '',
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sizes: image.getAttribute( 'sizes' ) || ''
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};
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widget.setData(data);
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});
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CKEDITOR.on('dialogDefinition', function(e) {
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// make sure this is the right editor (there can be more on one page) and the right dialog.
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if ((e.editor != editor) || (e.data.name != 'image2'))
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return;
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// Get a reference to the "Link Info" tab.
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var infoTab = e.data.definition.getContents( 'info' );
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// Add text fields for srcset and sizes.
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infoTab.add({
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id: 'srcset',
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type: 'text',
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requiredContent: 'img[srcset]',
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label: e.editor.lang.imageresponsive.srcset,
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setup: function(widget) {
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this.setValue(widget.data.srcset);
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},
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commit: function (widget) {
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widget.setData('srcset', this.getValue());
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}
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}, 'alt');
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infoTab.add({
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id: 'sizes',
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type: 'text',
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requiredContent: 'img[sizes]',
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label: e.editor.lang.imageresponsive.sizes,
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setup: function(widget) {
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this.setValue(widget.data.sizes);
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},
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commit: function (widget) {
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widget.setData('sizes', this.getValue());
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}
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}, 'alignment');
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});
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}
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});
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} )();
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