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<h1 class="page-title">Source: item_submenu.js</h1>
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<pre class="prettyprint source linenums"><code>/*************************************************************
*
* 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 Class of separator items.
*
* @author volker.sorge@gmail.com (Volker Sorge)
*/
/// <reference path="abstract_item.ts" />
/// <reference path="sub_menu.ts" />
var ContextMenu;
(function (ContextMenu) {
class Submenu extends ContextMenu.AbstractItem {
/**
* @constructor
* @extends {AbstractItem}
* @param {Menu} menu The context menu or sub-menu the item belongs to.
* @param {string} content The content of the menu item.
* @param {boolean} variable The variable that is changed.
* @param {string=} id Optionally the id of the menu item.
*/
constructor(menu, content, id) {
super(menu, 'submenu', content, id);
/**
* The sub menu object.
* @type {SubMenu}
*/
this.submenu = null;
}
/**
* Parses a JSON respresentation of a submenu item.
* @param {JSON} json The JSON object to parse.
* @param {Menu} menu The menu the item is attached to.
* @return {Submenu} The new submenu object.
*/
static parse({ content: content, menu: submenu, id: id }, menu) {
let item = new Submenu(menu, content, id);
item.setSubmenu(ContextMenu.SubMenu.parse(submenu, item));
return item;
}
/**
* Sets the submenu.
* @param {Menu} menu A menu.
*/
setSubmenu(menu) {
this.submenu = menu;
}
/**
* Returns the submenu element.
* @return {Menu} The submenu.
*/
getSubmenu() {
return this.submenu;
}
/**
* @override
*/
mouseover(event) {
this.focus();
this.stop(event);
}
/**
* @override
*/
mouseout(event) {
this.stop(event);
}
/**
* @override
*/
unfocus() {
if (!this.submenu.isPosted()) {
super.unfocus();
return;
}
if (this.getMenu().getFocused() !== this) {
super.unfocus();
this.getMenu().unpostSubmenus();
return;
}
this.getHtml().setAttribute('tabindex', '-1');
this.getHtml().blur();
}
/**
* @override
*/
focus() {
super.focus();
if (!this.submenu.isPosted() && !this.disabled) {
this.submenu.post();
}
}
/**
* @override
*/
executeAction() {
this.submenu.isPosted() ? this.submenu.unpost() : this.submenu.post();
}
/**
* @override
*/
generateHtml() {
super.generateHtml();
let html = this.getHtml();
this.span = document.createElement('span');
this.span.textContent = '\u25BA';
this.span.classList.add(ContextMenu.HtmlClasses['MENUARROW']);
html.appendChild(this.span);
html.setAttribute('aria-haspopup', 'true');
}
/**
* @override
*/
left(event) {
if (this.getSubmenu().isPosted()) {
this.getSubmenu().unpost();
}
else {
super.left(event);
}
}
/**
* @override
*/
right(event) {
if (!this.getSubmenu().isPosted()) {
this.getSubmenu().post();
}
else {
this.getSubmenu().down(event);
}
}
}
ContextMenu.Submenu = Submenu;
})(ContextMenu || (ContextMenu = {}));
</code></pre>
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="AbstractEntry.html">AbstractEntry</a></li><li><a href="AbstractItem.html">AbstractItem</a></li><li><a href="AbstractMenu.html">AbstractMenu</a></li><li><a href="AbstractNavigatable.html">AbstractNavigatable</a></li><li><a href="AbstractPostable.html">AbstractPostable</a></li><li><a href="Checkbox.html">Checkbox</a></li><li><a href="CloseButton.html">CloseButton</a></li><li><a href="Command.html">Command</a></li><li><a href="ContextMenu.html">ContextMenu</a></li><li><a href="Info.html">Info</a></li><li><a href="Label.html">Label</a></li><li><a href="MenuElement.html">MenuElement</a></li><li><a href="MenuStore.html">MenuStore</a></li><li><a href="Popup.html">Popup</a></li><li><a href="Radio.html">Radio</a></li><li><a href="Rule.html">Rule</a></li><li><a href="SubMenu.html">SubMenu</a></li><li><a href="Submenu_.html">Submenu</a></li><li><a href="Variable.html">Variable</a></li><li><a href="VariablePool.html">VariablePool</a></li></ul><h3>Namespaces</h3><ul><li><a href="CssStyles.html">CssStyles</a></li><li><a href="MenuUtil.html">MenuUtil</a></li></ul><h3>Interfaces</h3><ul><li><a href="Element.html">Element</a></li><li><a href="Entry.html">Entry</a></li><li><a href="Item.html">Item</a></li><li><a href="KeyNavigatable.html">KeyNavigatable</a></li><li><a href="Menu.html">Menu</a></li><li><a href="MouseNavigatable.html">MouseNavigatable</a></li><li><a href="Postable.html">Postable</a></li><li><a href="TouchNavigatable.html">TouchNavigatable</a></li><li><a href="VariableItem.html">VariableItem</a></li></ul><h3>Global</h3><ul><li><a href="global.html#HtmlAttrs">HtmlAttrs</a></li><li><a href="global.html#HtmlClasses">HtmlClasses</a></li><li><a href="global.html#KEY">KEY</a></li><li><a href="global.html#MOUSE">MOUSE</a></li><li><a href="global.html#TOUCH">TOUCH</a></li></ul>
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