@ckeditor/ckeditor5-list
Version:
Ordered and unordered lists feature to CKEditor 5.
53 lines (52 loc) • 1.76 kB
JavaScript
/**
* @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}.
*/
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 options.reversed 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}.
*
* @returns 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;
}
}