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Side by Side Diff: remoting/webapp/app_remoting/js/submenu_manager.js

Issue 1816653002: Remove app_remoting. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 9 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 /**
6 * @fileoverview
7 * Helper class for submenus that should add or remove the parent menu entry
8 * depending on whether or not any child items exist.
9 */
10
11 'use strict';
12
13 /** @suppress {duplicate} */
14 var remoting = remoting || {};
15
16 /**
17 * @param {remoting.ContextMenuAdapter} adapter
18 * @param {string} title The title of the parent menu item.
19 * @param {boolean} checkable True if the child menus should be checkable.
20 * @constructor
21 */
22 remoting.SubmenuManager = function(adapter, title, checkable) {
23 /** @private {remoting.ContextMenuAdapter} */
24 this.adapter_ = adapter;
25 /** @private {string} */
26 this.title_ = title;
27 /** @private {boolean} */
28 this.checkable_ = checkable;
29 /** @private {!Object} */
30 this.childIds_ = {};
31 /** @private {string} */
32 this.parentId_ = '';
33 };
34
35 /**
36 * Add a submenu item, or update the title of an existing submenu item.
37 *
38 * @param {string} id The child id.
39 * @param {string} title The window title.
40 * @return {boolean} True if a new menu item was created, false if an existing
41 * menu item was renamed.
42 */
43 remoting.SubmenuManager.prototype.add = function(id, title) {
44 if (id in this.childIds_) {
45 this.adapter_.updateTitle(id, title);
46 return false;
47 } else {
48 this.childIds_[id] = true;
49 this.addOrRemoveParent_();
50 this.adapter_.create(id, title, this.checkable_, this.parentId_);
51 return true;
52 }
53 };
54
55 /**
56 * Remove a submenu item.
57 *
58 * @param {string} id The child id.
59 */
60 remoting.SubmenuManager.prototype.remove = function(id) {
61 this.adapter_.remove(id);
62 delete this.childIds_[id];
63 this.addOrRemoveParent_();
64 };
65
66 /**
67 * Remove all submenu items.
68 */
69 remoting.SubmenuManager.prototype.removeAll = function() {
70 var submenus = Object.keys(this.childIds_);
71 for (var i = 0; i < submenus.length; ++i) {
72 this.remove(submenus[i]);
73 }
74 };
75
76 /**
77 * Add the parent menu item if it doesn't exist but there are submenus items,
78 * or remove it if it exists but there are no submenus.
79 *
80 * @private
81 */
82 remoting.SubmenuManager.prototype.addOrRemoveParent_ = function() {
83 if (Object.getOwnPropertyNames(this.childIds_).length != 0) {
84 if (!this.parentId_) {
85 this.parentId_ = base.generateXsrfToken(); // Use a random id
86 this.adapter_.create(this.parentId_, this.title_, false);
87 }
88 } else {
89 if (this.parentId_) {
90 this.adapter_.remove(this.parentId_);
91 this.parentId_ = '';
92 }
93 }
94 };
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