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- /**
- * @license Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /**
- * @module engine/view/text
- */
- import Node from './node';
- /**
- * Tree view text node.
- *
- * @extends module:engine/view/node~Node
- */
- export default class Text extends Node {
- /**
- * Creates a tree view text node.
- *
- * **Note:** Constructor of this class shouldn't be used directly in the code.
- * Use the {@link module:engine/view/writer~Writer#createText} method instead.
- *
- * @protected
- * @param {String} data Text.
- */
- constructor( data ) {
- super();
- /**
- * The text content.
- *
- * Setting the data fires the {@link module:engine/view/node~Node#event:change:text change event}.
- *
- * @protected
- * @member {String} module:engine/view/text~Text#_textData
- */
- this._textData = data;
- }
- /**
- * @inheritDoc
- */
- is( type ) {
- return type == 'text' || super.is( type );
- }
- /**
- * The text content.
- *
- * @returns {String}
- */
- get data() {
- return this._textData;
- }
- /**
- * This getter is required when using the addition assignment operator on protected property:
- *
- * const foo = new Text( 'foo' );
- * const bar = new Text( 'bar' );
- *
- * foo._data += bar.data; // executes: `foo._data = foo._data + bar.data`
- * console.log( foo.data ); // prints: 'foobar'
- *
- * If the protected getter didn't exist, `foo._data` will return `undefined` and result of the merge will be invalid.
- *
- * @protected
- * @returns {String}
- */
- get _data() {
- return this.data;
- }
- /**
- * Sets data and fires the {@link module:engine/view/node~Node#event:change:text change event}.
- *
- * @protected
- * @fires change:text
- * @param {String} data New data for the text node.
- */
- set _data( data ) {
- this._fireChange( 'text', this );
- this._textData = data;
- }
- /**
- * Checks if this text node is similar to other text node.
- * Both nodes should have the same data to be considered as similar.
- *
- * @param {module:engine/view/text~Text} otherNode Node to check if it is same as this node.
- * @returns {Boolean}
- */
- isSimilar( otherNode ) {
- if ( !( otherNode instanceof Text ) ) {
- return false;
- }
- return this === otherNode || this.data === otherNode.data;
- }
- /**
- * Clones this node.
- *
- * @protected
- * @returns {module:engine/view/text~Text} Text node that is a clone of this node.
- */
- _clone() {
- return new Text( this.data );
- }
- }
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