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- /**
- * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /**
- * @module core/editingkeystrokehandler
- */
- import KeystrokeHandler from '@ckeditor/ckeditor5-utils/src/keystrokehandler';
- /**
- * A keystroke handler for editor editing. Its instance is available
- * in {@link module:core/editor/standardeditor~StandardEditor#keystrokes} so plugins
- * can register their keystrokes.
- *
- * E.g. an undo plugin would do this:
- *
- * editor.keystrokes.set( 'ctrl + Z', 'undo' );
- * editor.keystrokes.set( 'ctrl + shift + Z', 'redo' );
- * editor.keystrokes.set( 'ctrl + Y', 'redo' );
- *
- * @extends utils/keystrokehandler~KeystrokeHandler
- */
- export default class EditingKeystrokeHandler extends KeystrokeHandler {
- /**
- * Creates an instance of the keystroke handler.
- *
- * @param {module:core/editor/editor~Editor} editor
- */
- constructor( editor ) {
- super();
- /**
- * The editor instance.
- *
- * @readonly
- * @member {module:core/editor/editor~Editor}
- */
- this.editor = editor;
- }
- /**
- * Registers a handler for the specified keystroke.
- *
- * * The handler can be specified as a command name or a callback.
- *
- * @param {String|Array.<String|Number>} keystroke Keystroke defined in a format accepted by
- * the {@link module:utils/keyboard~parseKeystroke} function.
- * @param {Function} callback If a string is passed, then the keystroke will
- * {@link module:core/editor/editor~Editor#execute execute a command}.
- * If a function, then it will be called with the
- * {@link module:engine/view/observer/keyobserver~KeyEventData key event data} object and
- * a helper to both `preventDefault` and `stopPropagation` of the event.
- */
- set( keystroke, callback ) {
- if ( typeof callback == 'string' ) {
- const commandName = callback;
- callback = () => {
- this.editor.execute( commandName );
- };
- }
- super.set( keystroke, callback );
- }
- /**
- * @inheritDoc
- */
- listenTo( emitter ) {
- this._listener.listenTo( emitter, 'keydown', ( evt, data ) => {
- const handled = this.press( data );
- if ( handled ) {
- data.preventDefault();
- }
- } );
- }
- }
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