Lock screen for Chrome-Athena

chrome/browser/chromeos/login/ui/lock_window_aura.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/chromeos/login/ui/lock_window_aura.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_animations.h"
 #include "base/command_line.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 
+#if defined(USE_ATHENA)
+#include "athena/screen/public/screen_manager.h"
+#include "athena/util/container_priorities.h"
+#include "athena/util/fill_layout_manager.h"
+#endif
+
 namespace chromeos {
 
 LockWindow* LockWindow::Create() {
   LockWindowAura* lock_window = new LockWindowAura();
   // Cancel existing touch events when screen is locked.
   ui::GestureRecognizer::Get()->TransferEventsTo(
       lock_window->GetNativeWindow(), NULL);
   return lock_window;
 }
 
@@ skipping 27 matching lines @@
 }
 
 LockWindowAura::~LockWindowAura() {
 }
 
 void LockWindowAura::Init() {
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   params.delegate = this;
   params.show_state = ui::SHOW_STATE_FULLSCREEN;
+#if defined(USE_ATHENA)
+  // Don't set TRANSLUCENT_WINDOW because we don't have wallpaper manager yet.

[Nikita (slow), 2014/10/10 10:53:06]

But currently login screen works just fine being translucent i.e. wallpaper is
shown.

You mean there's no way to move that wallpaper above all sessions windows when
screen lock is active?

Please file a bug for this functionality.

[Dmitry Polukhin, 2014/10/10 11:30:01]

Added link to the bug about move wallpaper manager to components.

+  athena::ScreenManager::ContainerParams container_params(
+      "LoginScreen", athena::CP_LOGIN_SCREEN);
+  container_params.can_activate_children = true;
+  container_params.grab_inputs = true;
+  lock_screen_container_.reset(
+      athena::ScreenManager::Get()->CreateContainer(container_params));
+  params.parent = lock_screen_container_.get();
+  lock_screen_container_->SetLayoutManager(
+      new athena::FillLayoutManager(lock_screen_container_.get()));
+#else
   params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
   // TODO(oshima): move the lock screen harness to ash.
   params.parent =
       ash::Shell::GetContainer(ash::Shell::GetPrimaryRootWindow(),
                                ash::kShellWindowId_LockScreenContainer);
+#endif
   views::Widget::Init(params);
   wm::SetWindowVisibilityAnimationTransition(
       GetNativeView(), wm::ANIMATE_NONE);
 }
 
 }  // namespace chromeos