1 // Copyright (c) 2012 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.
5 cr.define('options', function() {
6 var Page = cr.ui.pageManager.Page;
7 var PageManager = cr.ui.pageManager.PageManager;
11 * Encapsulated handling of a generic alert.
13 * @extends {cr.ui.pageManager.Page}
15 function AlertOverlay() {
16 Page.call(this, 'alertOverlay', '', 'alertOverlay');
19 cr.addSingletonGetter(AlertOverlay);
21 AlertOverlay.prototype = {
22 // Inherit AlertOverlay from Page.
23 __proto__: Page.prototype,
26 * Whether the page can be shown. Used to make sure the page is only
27 * shown via AlertOverlay.Show(), and not via the address bar.
33 initializePage: function() {
34 Page.prototype.initializePage.call(this);
36 // AlertOverlay is special in that it is not tied to one page or overlay.
37 this.alwaysOnTop = true;
40 $('alertOverlayOk').onclick = function(event) {
44 $('alertOverlayCancel').onclick = function(event) {
50 * Handle the 'ok' button. Clear the overlay and call the ok callback if
54 handleOK_: function() {
55 PageManager.closeOverlay();
56 if (this.okCallback != undefined) {
57 this.okCallback.call();
62 * Handle the 'cancel' button. Clear the overlay and call the cancel
63 * callback if available.
66 handleCancel_: function() {
67 PageManager.closeOverlay();
68 if (this.cancelCallback != undefined) {
69 this.cancelCallback.call();
74 * The page is getting hidden. Don't let it be shown again.
77 willHidePage: function() {
78 this.canShow_ = false;
82 canShowPage: function() {
88 * Show an alert overlay with the given message, button titles, and
90 * @param {string} title The alert title to display to the user.
91 * @param {string} message The alert message to display to the user.
92 * @param {string} okTitle The title of the OK button. If undefined or empty,
94 * @param {string} cancelTitle The title of the cancel button. If undefined or
95 * empty, no button is shown.
96 * @param {function()} okCallback A function to be called when the user
97 * presses the ok button. The alert window will be closed automatically.
99 * @param {function()} cancelCallback A function to be called when the user
100 * presses the cancel button. The alert window will be closed
101 * automatically. Can be undefined.
103 AlertOverlay.show = function(
104 title, message, okTitle, cancelTitle, okCallback, cancelCallback) {
105 if (title != undefined) {
106 $('alertOverlayTitle').textContent = title;
107 $('alertOverlayTitle').style.display = 'block';
109 $('alertOverlayTitle').style.display = 'none';
112 if (message != undefined) {
113 $('alertOverlayMessage').textContent = message;
114 $('alertOverlayMessage').style.display = 'block';
116 $('alertOverlayMessage').style.display = 'none';
119 if (okTitle != undefined && okTitle != '') {
120 $('alertOverlayOk').textContent = okTitle;
121 $('alertOverlayOk').style.display = 'block';
123 $('alertOverlayOk').style.display = 'none';
126 if (cancelTitle != undefined && cancelTitle != '') {
127 $('alertOverlayCancel').textContent = cancelTitle;
128 $('alertOverlayCancel').style.display = 'inline';
130 $('alertOverlayCancel').style.display = 'none';
133 var alertOverlay = AlertOverlay.getInstance();
134 alertOverlay.okCallback = okCallback;
135 alertOverlay.cancelCallback = cancelCallback;
136 alertOverlay.canShow_ = true;
138 // Intentionally don't show the URL in the location bar as we don't want
139 // people trying to navigate here by hand.
140 PageManager.showPageByName('alertOverlay', false);
145 AlertOverlay: AlertOverlay