/
listreversedcommand.js
64 lines (56 loc) · 1.69 KB
/
listreversedcommand.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
/**
* @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
/**
* @module list/listproperties/listreversedcommand
*/
import { Command } from 'ckeditor5/src/core';
import { getSelectedListItems } from '../list/utils';
/**
* The reversed list command. It changes the `listReversed` attribute of the selected list items. As a result, the list order will be
* reversed.
* It is used by the {@link module:list/listproperties~ListProperties list properties feature}.
*
* @extends module:core/command~Command
*/
export default class ListReversedCommand extends Command {
/**
* @inheritDoc
*/
refresh() {
const value = this._getValue();
this.value = value;
this.isEnabled = value != null;
}
/**
* Executes the command.
*
* @fires execute
* @param {Object} options
* @param {Boolean} [options.reversed=false] Whether the list should be reversed.
*/
execute( options = {} ) {
const model = this.editor.model;
const listItems = getSelectedListItems( model )
.filter( item => item.getAttribute( 'listType' ) == 'numbered' );
model.change( writer => {
for ( const item of listItems ) {
writer.setAttribute( 'listReversed', !!options.reversed, item );
}
} );
}
/**
* Checks the command's {@link #value}.
*
* @private
* @returns {Boolean|null} The current value.
*/
_getValue() {
const listItem = this.editor.model.document.selection.getFirstPosition().parent;
if ( listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == 'numbered' ) {
return listItem.getAttribute( 'listReversed' );
}
return null;
}
}