| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130 |
- /**
- * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- 'use strict';
- CKEDITOR.define( [ 'document/operation/operation', 'ckeditorerror' ], function( Operation, CKEditorError ) {
- /**
- * Operation to change nodes' attribute. Using this class you can add, remove or change value of the attribute.
- *
- * @class document.operation.ChangeOperation
- */
- class ChangeOperation extends Operation {
- /**
- * Creates a change operation.
- *
- * If only the new attribute is set, then it will be inserted. Note that in all nodes in ranges there must be
- * no attributes with the same key as the new attribute.
- *
- * If only the old attribute is set, then it will be removed. Note that this attribute must be present in all nodes in
- * ranges.
- *
- * If both new and old attributes are set, then the operation will change the attribute value. Note that both new and
- * old attributes have to have the same key and the old attribute must be present in all nodes in ranges.
- *
- * @param {document.Range} range Range on which the operation should be applied.
- * @param {document.Attribute|null} oldAttr Attribute to be removed. If `null`, then the operation just inserts a new attribute.
- * @param {document.Attribute|null} newAttr Attribute to be added. If `null`, then the operation just removes the attribute.
- * @param {Number} baseVersion {@link document.Document#version} on which the operation can be applied.
- * @constructor
- */
- constructor( range, oldAttr, newAttr, baseVersion ) {
- super( baseVersion );
- /**
- * Range on which operation should be applied.
- *
- * @readonly
- * @type {document.Range}
- */
- this.range = range;
- /**
- * Old attribute to change. Set to `null` if operation inserts a new attribute.
- *
- * @readonly
- * @type {document.Attribute|null}
- */
- this.oldAttr = oldAttr;
- /**
- * New attribute. Set to `null` if operation removes the attribute.
- *
- * @readonly
- * @type {document.Attribute|null}
- */
- this.newAttr = newAttr;
- }
- _execute() {
- var oldAttr = this.oldAttr;
- var newAttr = this.newAttr;
- var value;
- if ( oldAttr !== null && newAttr !== null && oldAttr.key != newAttr.key ) {
- /**
- * Old and new attributes should have the same keys.
- *
- * @error operation-change-different-keys
- * @param {document.Attribute} oldAttr
- * @param {document.Attribute} newAttr
- */
- throw new CKEditorError(
- 'operation-change-different-keys: Old and new attributes should have the same keys.',
- { oldAttr: oldAttr, newAttr: newAttr } );
- }
- // Remove or change.
- if ( oldAttr !== null ) {
- for ( value of this.range ) {
- if ( !value.node.hasAttr( oldAttr ) ) {
- /**
- * The attribute which should be removed does not exists for the given node.
- *
- * @error operation-change-no-attr-to-remove
- * @param {document.Node} node
- * @param {document.Attribute} attr
- */
- throw new CKEditorError(
- 'operation-change-no-attr-to-remove: The attribute which should be removed does not exists for given node.',
- { node: value.node, attr: oldAttr } );
- }
- // There is no use in removing attribute if we will overwrite it later.
- // Still it is profitable to run through the loop to check if all nodes in the range has old attribute.
- if ( newAttr === null ) {
- value.node.removeAttr( oldAttr.key );
- }
- }
- }
- // Insert or change.
- if ( newAttr !== null ) {
- for ( value of this.range ) {
- if ( oldAttr === null && value.node.hasAttr( newAttr.key ) ) {
- /**
- * The attribute with given key already exists for the given node.
- *
- * @error operation-change-attr-exists
- * @param {document.Node} node
- * @param {document.Attribute} attr
- */
- throw new CKEditorError(
- 'operation-change-attr-exists: The attribute with given key already exists.',
- { node: value.node, attr: newAttr } );
- }
- value.node.setAttr( newAttr );
- }
- }
- }
- getReversed() {
- return new ChangeOperation( this.range, this.newAttr, this.oldAttr, this.baseVersion + 1 );
- }
- }
- return ChangeOperation;
- } );
|