Single pod autofocus disabled for touch view mode. Delegate class created for ash interactions.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
index 0a2c84fdd45444a363c30f74f7a02da140f711e6..001034a5857f6af4031b1416cb6106dbdd55a815 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
@@ -298,6 +298,9 @@ SigninScreenHandler::SigninScreenHandler(
   if (keyboard)
     keyboard->AddObserver(this);
 
+  max_mode_delegate_.reset(new MaximizeModeControllerDelegate());
+  max_mode_delegate_->AddObserver(this);
+
   policy::ConsumerManagementService* consumer_management =
       g_browser_process->platform_part()->browser_policy_connector_chromeos()->
           GetConsumerManagementService();
@@ -316,6 +319,8 @@ SigninScreenHandler::~SigninScreenHandler() {
   if (delegate_)
     delegate_->SetWebUIHandler(NULL);
   network_state_informer_->RemoveObserver(this);
+  max_mode_delegate_->RemoveObserver(this);
+  max_mode_delegate_.reset(NULL);
   ScreenlockBridge::Get()->SetLockHandler(NULL);
 }
 
@@ -505,6 +510,9 @@ void SigninScreenHandler::UpdateUIState(UIState ui_state,
       break;
     case UI_STATE_ACCOUNT_PICKER:
       ui_state_ = UI_STATE_ACCOUNT_PICKER;
+      params->SetBoolean(
+          "touchViewEnabled",
+          max_mode_delegate_->IsMaximizeModeEnabled());
       ShowScreen(OobeUI::kScreenAccountPicker, params);
       break;
     default:
@@ -783,6 +791,8 @@ void SigninScreenHandler::RegisterPrefs(PrefRegistrySimple* registry) {
 }
 
 void SigninScreenHandler::HandleGetUsers() {
+  CallJS("login.AccountPickerScreen.setTouchViewState",

[Nikita (slow), 2014/08/14 15:48:00]

Not needed?

[merkulova, 2014/08/14 15:56:02]

Done.

+         max_mode_delegate_->IsMaximizeModeEnabled());
   if (delegate_)
     delegate_->HandleGetUsers();
 }
@@ -987,6 +997,14 @@ void SigninScreenHandler::Unlock(const std::string& user_email) {
   ScreenLocker::Hide();
 }
 
+void SigninScreenHandler::OnMaximizeModeStarted() {
+  CallJS("login.AccountPickerScreen.setTouchViewState", true);
+}
+
+void SigninScreenHandler::OnMaximizeModeEnded() {
+  CallJS("login.AccountPickerScreen.setTouchViewState", false);
+}
+
 bool SigninScreenHandler::ShouldLoadGaia() const {
   // Fetching of the extension is not started before account picker page is
   // loaded because it can affect the loading speed.