Add Fade-out/Fade-in animation during output-configuration change.

ash/shell.cc

 // 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.
 
 #include "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/focus_manager_factory.h"
@@ skipping 81 matching lines @@
 #include "ui/views/widget/native_widget_aura.h"
 #include "ui/views/widget/widget.h"
 
 #if !defined(OS_MACOSX)
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_filter.h"
 #include "ash/accelerators/nested_dispatcher_controller.h"
 #endif
 
 #if defined(OS_CHROMEOS)
+#include "ash/display/output_configurator_animation.h"
 #include "chromeos/display/output_configurator.h"
 #include "ui/aura/dispatcher_linux.h"
 #endif  // defined(OS_CHROMEOS)
 
 namespace ash {
 
 namespace {
 
 using aura::Window;
 using views::Widget;
@@ skipping 63 matching lines @@
 // Shell, public:
 
 Shell::Shell(ShellDelegate* delegate)
     : screen_(new ScreenAsh),
       active_root_window_(NULL),
       env_filter_(NULL),
       delegate_(delegate),
 #if defined(OS_CHROMEOS)
       output_configurator_(new chromeos::OutputConfigurator(
           internal::DisplayController::IsExtendedDesktopEnabled())),
+      output_configurator_animation_(
+          new internal::OutputConfiguratorAnimation()),
 #endif  // defined(OS_CHROMEOS)
       shelf_(NULL),
       panel_layout_manager_(NULL),
       status_area_widget_(NULL),
       browser_context_(NULL) {
   gfx::Screen::SetInstance(screen_);
   ui_controls::InstallUIControlsAura(internal::CreateUIControls());
 #if defined(OS_CHROMEOS)
-  // OutputConfigurator needs to get events regarding added/removed outputs.
+  output_configurator_->AddObserver(output_configurator_animation_.get());
   static_cast<aura::DispatcherLinux*>(
       aura::Env::GetInstance()->GetDispatcher())->AddDispatcherForRootWindow(
           output_configurator());
 #endif  // defined(OS_CHROMEOS)
 }
 
 Shell::~Shell() {
   views::FocusManagerFactory::Install(NULL);
 
   // Remove the focus from any window. This will prevent overhead and side
@@ skipping 61 matching lines @@
   launcher_.reset();
 
   // Delete the activation controller after other controllers and launcher
   // because they might have registered ActivationChangeObserver.
   activation_controller_.reset();
 
   DCHECK(instance_ == this);
   instance_ = NULL;
 
 #if defined(OS_CHROMEOS)
+  output_configurator_->RemoveObserver(output_configurator_animation_.get());
   // Remove OutputConfigurator from Dispatcher.
   static_cast<aura::DispatcherLinux*>(
       aura::Env::GetInstance()->GetDispatcher())->RemoveDispatcherForRootWindow(
           output_configurator());
 #endif  // defined(OS_CHROMEOS)
 }
 
 // static
 Shell* Shell::CreateInstance(ShellDelegate* delegate) {
   CHECK(!instance_);
@@ skipping 498 matching lines @@
 }
 
 void Shell::ShowCursor(bool visible) {
   RootWindowList root_windows = GetAllRootWindows();
   for (RootWindowList::iterator iter = root_windows.begin();
        iter != root_windows.end(); ++iter)
     (*iter)->ShowCursor(visible);
 }
 
 }  // namespace ash