/*!
 * Jodit Editor (https://xdsoft.net/jodit/)
 * Licensed under GNU General Public License version 2 or later or a commercial license or MIT;
 * For GPL see LICENSE-GPL.txt in the project root for license information.
 * For MIT see LICENSE-MIT.txt in the project root for license information.
 * For commercial licenses see https://xdsoft.net/jodit/commercial/
 * Copyright (c) 2013-2019 Valeriy Chupurnov. All rights reserved. https://xdsoft.net
 */

import { Config } from '../Config';
import { Dom } from '../modules/Dom';
import { setTimeout } from '../modules/helpers/async';
import { IJodit } from '../types';

declare module '../Config' {
	interface Config {
		autofocus: boolean;
	}
}

/**
 * @property{boolean} autofocus=false true After loading the page into the editor once the focus is set
 */
Config.prototype.autofocus = false;

/**
 * Autofocus plugin - set focus inside the editor after reload
 *
 * @param {Jodit} editor
 */
export function autofocus(editor: IJodit) {
	let timeout: number;
	editor.events
		.on('afterInit', () => {
			if (editor.options.autofocus) {
				if (editor.defaultTimeout) {
					timeout = setTimeout(editor.selection.focus, 300);
				} else {
					editor.selection.focus();
				}
			}
		})
		.on('mousedown', (e: MouseEvent) => {
			if (
				editor.isEditorMode() &&
				e.target &&
				Dom.isBlock(e.target as Node, editor.editorWindow) &&
				!(e.target as HTMLElement).childNodes.length
			) {
				if (editor.editor === e.target) {
					editor.selection.focus();
				} else {
					editor.selection.setCursorIn(e.target as HTMLElement);
				}
			}
		})
		.on('beforeDestruct', () => {
			clearTimeout(timeout);
		});
}