@ckeditor/ckeditor5-basic-styles/src/underline/underlineui.js

Basic styles feature for CKEditor 5.

/**
 * @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 basic-styles/underline/underlineui
 */
import { Plugin } from 'ckeditor5/src/core';
import { ButtonView } from 'ckeditor5/src/ui';
import underlineIcon from '../../theme/icons/underline.svg';
const UNDERLINE = 'underline';
/**
 * The underline UI feature. It introduces the Underline button.
 */
export default class UnderlineUI extends Plugin {
    /**
     * @inheritDoc
     */
    static get pluginName() {
        return 'UnderlineUI';
    }
    /**
     * @inheritDoc
     */
    init() {
        const editor = this.editor;
        const t = editor.t;
        // Add bold button to feature components.
        editor.ui.componentFactory.add(UNDERLINE, locale => {
            const command = editor.commands.get(UNDERLINE);
            const view = new ButtonView(locale);
            view.set({
                label: t('Underline'),
                icon: underlineIcon,
                keystroke: 'CTRL+U',
                tooltip: true,
                isToggleable: true
            });
            view.bind('isOn', 'isEnabled').to(command, 'value', 'isEnabled');
            // Execute command.
            this.listenTo(view, 'execute', () => {
                editor.execute(UNDERLINE);
                editor.editing.view.focus();
            });
            return view;
        });
    }
}