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- /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
- */
- /**
- * @module engine/model/operation/detachoperation
- */
- import Operation from './operation';
- import Range from '../range';
- import { _remove } from './utils';
- import CKEditorError from '@ckeditor/ckeditor5-utils/src/ckeditorerror';
- /**
- * Operation to permanently remove node from detached root.
- * Note this operation is only a local operation and won't be send to the other clients.
- *
- * @extends module:engine/model/operation/operation~Operation
- */
- export default class DetachOperation extends Operation {
- /**
- * Creates an insert operation.
- *
- * @param {module:engine/model/position~Position} sourcePosition
- * Position before the first {@link module:engine/model/item~Item model item} to move.
- * @param {Number} howMany Offset size of moved range. Moved range will start from `sourcePosition` and end at
- * `sourcePosition` with offset shifted by `howMany`.
- */
- constructor( sourcePosition, howMany ) {
- super( null );
- /**
- * Position before the first {@link module:engine/model/item~Item model item} to detach.
- *
- * @member {module:engine/model/position~Position} #sourcePosition
- */
- this.sourcePosition = sourcePosition.clone();
- /**
- * Offset size of moved range.
- *
- * @member {Number} #howMany
- */
- this.howMany = howMany;
- }
- /**
- * @inheritDoc
- */
- get type() {
- return 'detach';
- }
- /**
- * @inheritDoc
- */
- toJSON() {
- const json = super.toJSON();
- json.sourcePosition = this.sourcePosition.toJSON();
- return json;
- }
- /**
- * @inheritDoc
- */
- _validate() {
- if ( this.sourcePosition.root.document ) {
- /**
- * Cannot detach document node.
- *
- * @error detach-operation-on-document-node
- */
- throw new CKEditorError( 'detach-operation-on-document-node: Cannot detach document node.', this );
- }
- }
- /**
- * @inheritDoc
- */
- _execute() {
- _remove( Range._createFromPositionAndShift( this.sourcePosition, this.howMany ) );
- }
- /**
- * @inheritDoc
- */
- static get className() {
- return 'DetachOperation';
- }
- }
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