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- /**
- * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /**
- * @module image/imagetextalternative/imagetextalternativecommand
- */
- import Command from '@ckeditor/ckeditor5-core/src/command';
- import { isImage } from '../image/utils';
- /**
- * The image text alternative command. It is used to change the `alt` attribute on `<image>` elements.
- *
- * @extends module:core/command~Command
- */
- export default class ImageTextAlternativeCommand extends Command {
- /**
- * The command value: `false` if there is no `alt` attribute, otherwise the value of the `alt` attribute.
- *
- * @readonly
- * @observable
- * @member {String|Boolean} #value
- */
- /**
- * @inheritDoc
- */
- refresh() {
- const element = this.editor.document.selection.getSelectedElement();
- this.isEnabled = isImage( element );
- if ( isImage( element ) && element.hasAttribute( 'alt' ) ) {
- this.value = element.getAttribute( 'alt' );
- } else {
- this.value = false;
- }
- }
- /**
- * Executes the command.
- *
- * @fires execute
- * @param {Object} options
- * @param {String} options.newValue The new value of the `alt` attribute to set.
- * @param {module:engine/model/batch~Batch} [options.batch] A batch to collect all the change steps. A new batch will be
- * created if this option is not set.
- */
- execute( options ) {
- const doc = this.editor.document;
- const imageElement = doc.selection.getSelectedElement();
- doc.enqueueChanges( () => {
- const batch = options.batch || doc.batch();
- batch.setAttribute( 'alt', options.newValue, imageElement );
- } );
- }
- }
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