Source: abstract_postable.js

/*************************************************************
 *
 *  Copyright (c) 2015-2016 The MathJax Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
/**
 * @fileoverview Abstract class of context menus.
 *
 * @author volker.sorge@gmail.com (Volker Sorge)
 */
/// <reference path="menu.ts" />
/// <reference path="menu_element.ts" />
/// <reference path="item.ts" />
/// <reference path="variable_pool.ts" />
var ContextMenu;
(function (ContextMenu) {
    class AbstractPostable extends ContextMenu.MenuElement {
        /**
         * @constructor
         * @extends {MenuElement}
         * @implements {Postable}
         */
        constructor(...args) {
            super(...args);
            this.posted = false;
        }
        /**
         * @override
         */
        isPosted() {
            return this.posted;
        }
        /**
         * @override
         */
        post(x, y) {
            if (this.posted) {
                return;
            }
            if (typeof (x) !== 'undefined' && typeof (y) !== 'undefined') {
                this.getHtml().setAttribute('style', 'left: ' + x + 'px; top: ' + y + 'px;');
            }
            this.display();
            this.posted = true;
        }
        /**
         * @override
         */
        unpost() {
            if (!this.posted) {
                return;
            }
            let html = this.getHtml();
            if (html.parentNode) {
                html.parentNode.removeChild(html);
            }
            this.posted = false;
        }
    }
    ContextMenu.AbstractPostable = AbstractPostable;
})(ContextMenu || (ContextMenu = {}));