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Add table alignment command.

Maciej Gołaszewski 5 years ago
parent
commit
d8fa375e62
1 changed files with 81 additions and 0 deletions
  1. 81 0
      packages/ckeditor5-table/src/commands/tablealignmentcommand.js

+ 81 - 0
packages/ckeditor5-table/src/commands/tablealignmentcommand.js

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+/**
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module table/commands/tablealignmentcommand
+ */
+
+import Command from '@ckeditor/ckeditor5-core/src/command';
+
+import { findAncestor } from './utils';
+
+/**
+ * The table alignment command.
+ *
+ * The command is registered by {@link module:table/tablepropertiesediting~TablePropertiesEditing} as
+ * `'tableAlignment'` editor command.
+ *
+ * To change alignment of the selected table, execute the command:
+ *
+ *		editor.execute( 'tableAlignment', {
+ *			value: '5px'
+ *		} );
+ *
+ * @extends module:core/command~Command
+ */
+export default class TableAlignmentCommand extends Command {
+	constructor( editor ) {
+		super( editor );
+
+		this.attributeName = 'alignment';
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	refresh() {
+		const editor = this.editor;
+		const selection = editor.model.document.selection;
+
+		const table = findAncestor( 'table', selection.getFirstPosition() );
+
+		this.isEnabled = !!table;
+		this.value = this._getValue( table );
+	}
+
+	_getValue( table ) {
+		if ( !table ) {
+			return;
+		}
+
+		return table.getAttribute( this.attributeName );
+	}
+
+	/**
+	 * Executes the command.
+	 *
+	 * @fires execute
+	 * @param {Object} [options]
+	 * @param {Boolean} [options.value] If set the command will set alignment.
+	 * If alignment is not set the command will remove the attribute.
+	 */
+	execute( options = {} ) {
+		const model = this.editor.model;
+		const selection = model.document.selection;
+
+		const { value } = options;
+
+		const tables = Array.from( selection.getSelectedBlocks() )
+			.map( element => findAncestor( 'table', model.createPositionAt( element, 0 ) ) );
+
+		model.change( writer => {
+			if ( value ) {
+				tables.forEach( table => writer.setAttribute( this.attributeName, value, table ) );
+			} else {
+				tables.forEach( table => writer.removeAttribute( this.attributeName, table ) );
+			}
+		} );
+	}
+}