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|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Account picker screen implementation.
*/
login.createScreen('AccountPickerScreen', 'account-picker', function() {
/**
* Maximum number of offline login failures before online login.
* @type {number}
* @const
*/
var MAX_LOGIN_ATTEMPTS_IN_POD = 3;
/**
* Whether to preselect the first pod automatically on login screen.
* @type {boolean}
* @const
*/
var PRESELECT_FIRST_POD = true;
return {
EXTERNAL_API: [
'loadUsers',
'updateUserImage',
'updateUserGaiaNeeded',
'setCapsLockState',
'forceLockedUserPodFocus',
'onWallpaperLoaded',
'removeUser',
'showBannerMessage',
'showUserPodButton',
],
preferredWidth_: 0,
preferredHeight_: 0,
// Whether this screen is shown for the first time.
firstShown_: true,
/** @override */
decorate: function() {
login.PodRow.decorate($('pod-row'));
},
/** @override */
getPreferredSize: function() {
return {width: this.preferredWidth_, height: this.preferredHeight_};
},
/** @override */
onWindowResize: function() {
$('pod-row').onWindowResize();
},
/**
* Sets preferred size for account picker screen.
*/
setPreferredSize: function(width, height) {
this.preferredWidth_ = width;
this.preferredHeight_ = height;
},
/**
* When the account picker is being used to lock the screen, pressing the
* exit accelerator key will sign out the active user as it would when
* they are signed in.
*/
exit: function() {
// Check and disable the sign out button so that we can never have two
// sign out requests generated in a row.
if ($('pod-row').lockedPod && !$('sign-out-user-button').disabled) {
$('sign-out-user-button').disabled = true;
chrome.send('signOutUser');
}
},
/**
* Event handler that is invoked just after the frame is shown.
* @param {string} data Screen init payload.
*/
onAfterShow: function(data) {
$('pod-row').handleAfterShow();
},
/**
* Event handler that is invoked just before the frame is shown.
* @param {string} data Screen init payload.
*/
onBeforeShow: function(data) {
chrome.send('loginUIStateChanged', ['account-picker', true]);
$('login-header-bar').signinUIState = SIGNIN_UI_STATE.ACCOUNT_PICKER;
chrome.send('hideCaptivePortal');
var podRow = $('pod-row');
podRow.handleBeforeShow();
// If this is showing for the lock screen display the sign out button,
// hide the add user button and activate the locked user's pod.
var lockedPod = podRow.lockedPod;
$('add-user-header-bar-item').hidden = !!lockedPod;
var signOutUserItem = $('sign-out-user-item');
if (signOutUserItem)
signOutUserItem.hidden = !lockedPod;
// In case of the preselected pod onShow will be called once pod
// receives focus.
if (!podRow.preselectedPod)
this.onShow();
},
/**
* Event handler invoked when the page is shown and ready.
*/
onShow: function() {
if (!this.firstShown_) return;
this.firstShown_ = false;
// TODO(nkostylev): Enable animation back when session start jank
// is reduced. See http://crosbug.com/11116 http://crosbug.com/18307
// $('pod-row').startInitAnimation();
// Ensure that login is actually visible.
window.webkitRequestAnimationFrame(function() {
chrome.send('accountPickerReady');
chrome.send('loginVisible', ['account-picker']);
});
},
/**
* Event handler that is invoked just before the frame is hidden.
*/
onBeforeHide: function() {
chrome.send('loginUIStateChanged', ['account-picker', false]);
$('login-header-bar').signinUIState = SIGNIN_UI_STATE.HIDDEN;
$('pod-row').handleHide();
},
/**
* Shows sign-in error bubble.
* @param {number} loginAttempts Number of login attemps tried.
* @param {HTMLElement} content Content to show in bubble.
*/
showErrorBubble: function(loginAttempts, error) {
var activatedPod = $('pod-row').activatedPod;
if (!activatedPod) {
$('bubble').showContentForElement($('pod-row'),
cr.ui.Bubble.Attachment.RIGHT,
error);
return;
}
// Show web authentication if this is not a locally managed user.
if (loginAttempts > MAX_LOGIN_ATTEMPTS_IN_POD &&
!activatedPod.user.locallyManagedUser) {
activatedPod.showSigninUI();
} else {
// We want bubble's arrow to point to the first letter of input.
/** @const */ var BUBBLE_OFFSET = 7;
/** @const */ var BUBBLE_PADDING = 4;
$('bubble').showContentForElement(activatedPod.mainInput,
cr.ui.Bubble.Attachment.BOTTOM,
error,
BUBBLE_OFFSET, BUBBLE_PADDING);
}
},
/**
* Loads given users in pod row.
* @param {array} users Array of user.
* @param {boolean} animated Whether to use init animation.
* @param {boolean} showGuest Whether to show guest session button.
*/
loadUsers: function(users, animated, showGuest) {
$('pod-row').loadPods(users, animated);
$('login-header-bar').showGuestButton = showGuest;
// The desktop User Manager can send the index of a pod that should be
// initially focused.
var hash = window.location.hash;
if (hash) {
var podIndex = hash.substr(1);
if (podIndex)
$('pod-row').focusPodByIndex(podIndex, false);
}
},
/**
* Updates current image of a user.
* @param {string} username User for which to update the image.
*/
updateUserImage: function(username) {
$('pod-row').updateUserImage(username);
},
/**
* Updates user to use gaia login.
* @param {string} username User for which to state the state.
*/
updateUserGaiaNeeded: function(username) {
$('pod-row').resetUserOAuthTokenStatus(username);
},
/**
* Updates Caps Lock state (for Caps Lock hint in password input field).
* @param {boolean} enabled Whether Caps Lock is on.
*/
setCapsLockState: function(enabled) {
$('pod-row').classList.toggle('capslock-on', enabled);
},
/**
* Enforces focus on user pod of locked user.
*/
forceLockedUserPodFocus: function() {
var row = $('pod-row');
if (row.lockedPod)
row.focusPod(row.lockedPod, true);
},
/**
* Mark wallpaper loaded
*/
onWallpaperLoaded: function(username) {
$('pod-row').onWallpaperLoaded(username);
},
/**
* Remove given user from pod row if it is there.
* @param {string} user name.
*/
removeUser: function(username) {
$('pod-row').removeUserPod(username);
},
/**
* Displays a banner containing |message|. If the banner is already present
* this function updates the message in the banner. This function is used
* by the chrome.screenlockPrivate.showMessage API.
* @param {string} message Text to be displayed
*/
showBannerMessage: function(message) {
var banner = $('signin-banner');
banner.textContent = message;
banner.classList.toggle('message-set', true);
},
/**
* Shows a button with an icon on the user pod of |username|. This function
* is used by the chrome.screenlockPrivate API.
* @param {string} username Username of pod to add button
* @param {string} iconURL URL of the button icon
*/
showUserPodButton: function(username, iconURL) {
$('pod-row').showUserPodButton(username, iconURL);
}
};
});
|
