1 // Copyright 2013 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.
6 * @fileoverview Desktop User Chooser UI control bar implementation.
9 cr.define('login', function() {
11 * Creates a header bar element.
13 * @extends {HTMLDivElement}
15 var HeaderBar = cr.ui.define('div');
17 HeaderBar.prototype = {
18 __proto__: HTMLDivElement.prototype,
20 // Whether guest button should be shown when header bar is in normal mode.
23 // Current UI state of the sign-in screen.
24 signinUIState_: SIGNIN_UI_STATE.ACCOUNT_PICKER,
26 // Whether to show kiosk apps menu.
30 decorate: function() {
31 $('add-user-button').addEventListener('click',
32 this.handleAddUserClick_);
33 $('cancel-add-user-button').addEventListener('click',
34 this.handleCancelAddUserClick_);
35 $('guest-user-header-bar-item').addEventListener('click',
36 this.handleGuestClick_);
37 $('guest-user-button').addEventListener('click',
38 this.handleGuestClick_);
43 * Tab index value for all button elements.
46 set buttonsTabIndex(tabIndex) {
47 var buttons = this.getElementsByTagName('button');
48 for (var i = 0, button; button = buttons[i]; ++i) {
49 button.tabIndex = tabIndex;
54 * Disables the header bar and all of its elements.
58 var buttons = this.getElementsByTagName('button');
59 for (var i = 0, button; button = buttons[i]; ++i)
60 if (!button.classList.contains('button-restricted'))
61 button.disabled = value;
65 * Add user button click handler.
68 handleAddUserClick_: function(e) {
69 chrome.send('addUser');
70 // Prevent further propagation of click event. Otherwise, the click event
71 // handler of document object will set wallpaper to user's wallpaper when
72 // there is only one existing user. See http://crbug.com/166477
77 * Cancel add user button click handler.
80 handleCancelAddUserClick_: function(e) {
81 // Let screen handle cancel itself if that is capable of doing so.
82 if (Oobe.getInstance().currentScreen &&
83 Oobe.getInstance().currentScreen.cancel) {
84 Oobe.getInstance().currentScreen.cancel();
88 Oobe.showScreen({id: SCREEN_ACCOUNT_PICKER});
89 Oobe.resetSigninUI(true);
93 * Guest button click handler.
96 handleGuestClick_: function(e) {
97 chrome.send('launchGuest');
102 * If true then "Browse as Guest" button is shown.
105 set showGuestButton(value) {
106 this.showGuest_ = value;
111 * Update current header bar UI.
112 * @type {number} state Current state of the sign-in screen
113 * (see SIGNIN_UI_STATE).
115 set signinUIState(state) {
116 this.signinUIState_ = state;
121 * Whether the Cancel button is enabled during Gaia sign-in.
124 set allowCancel(value) {
125 this.allowCancel_ = value;
130 * Updates visibility state of action buttons.
133 updateUI_: function() {
134 $('add-user-button').hidden = false;
135 $('cancel-add-user-button').hidden = !this.allowCancel_;
136 $('guest-user-header-bar-item').hidden = false;
137 $('add-user-header-bar-item').hidden = false;
141 * Animates Header bar to hide from the screen.
142 * @param {function()} callback will be called once animation is finished.
144 animateOut: function(callback) {
146 launcher.addEventListener(
147 'webkitTransitionEnd', function f(e) {
148 launcher.removeEventListener('webkitTransitionEnd', f);
151 this.classList.remove('login-header-bar-animate-slow');
152 this.classList.add('login-header-bar-animate-fast');
153 this.classList.add('login-header-bar-hidden');
157 * Animates Header bar to slowly appear on the screen.
159 animateIn: function() {
160 this.classList.remove('login-header-bar-animate-fast');
161 this.classList.add('login-header-bar-animate-slow');
162 this.classList.remove('login-header-bar-hidden');
167 * Convenience wrapper of animateOut.
169 HeaderBar.animateOut = function(callback) {
170 $('login-header-bar').animateOut(callback);
174 * Convenience wrapper of animateIn.
176 HeaderBar.animateIn = function() {
177 $('login-header-bar').animateIn();