Enable touch text selection on Athena

athena/main/athena_launcher.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 "athena/main/athena_launcher.h"
 
 #include "athena/activity/public/activity_factory.h"
 #include "athena/activity/public/activity_manager.h"
 #include "athena/home/public/home_card.h"
 #include "athena/input/public/input_manager.h"
 #include "athena/main/placeholder.h"
 #include "athena/screen/public/screen_manager.h"
 #include "athena/wm/public/window_manager.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/window_property.h"
+#include "ui/views/views_delegate.h"
 #include "ui/wm/core/visibility_controller.h"
 
 #if defined(USE_X11)
 #include "ui/events/x/touch_factory_x11.h"
 #endif
 
 namespace athena {
 struct RootWindowState;
 }
 
 DECLARE_WINDOW_PROPERTY_TYPE(athena::RootWindowState*);
 
 namespace athena {
 
 // Athena's per root window state.
 struct RootWindowState {
   scoped_ptr< ::wm::VisibilityController> visibility_client;
 };
 
 DEFINE_OWNED_WINDOW_PROPERTY_KEY(athena::RootWindowState,
                                  kRootWindowStateKey,
                                  NULL);
 
+class AthenaViewsDelegate : public views::ViewsDelegate {
+ public:
+  AthenaViewsDelegate() {}
+  virtual ~AthenaViewsDelegate() {}
+
+ private:
+  // views::ViewsDelegate:
+  virtual void OnBeforeWidgetInit(
+      views::Widget::InitParams* params,
+      views::internal::NativeWidgetDelegate* delegate) OVERRIDE {
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(AthenaViewsDelegate);
+};
+
 void StartAthena(aura::Window* root_window,
                  athena::ActivityFactory* activity_factory,
                  athena::AppModelBuilder* app_model_builder) {
 #if defined(USE_X11)
   ui::TouchFactory::SetTouchDeviceListFromCommandLine();
 #endif
+
+  views::ViewsDelegate::views_delegate = new AthenaViewsDelegate();
+
   RootWindowState* root_window_state = new RootWindowState;
   root_window->SetProperty(kRootWindowStateKey, root_window_state);
 
   root_window_state->visibility_client.reset(new ::wm::VisibilityController);
   aura::client::SetVisibilityClient(root_window,
                                     root_window_state->visibility_client.get());
 
   athena::InputManager::Create()->OnRootWindowCreated(root_window);
   athena::ScreenManager::Create(root_window);
   athena::WindowManager::Create();
   athena::HomeCard::Create(app_model_builder);
   athena::ActivityManager::Create();
   athena::ActivityFactory::RegisterActivityFactory(activity_factory);
   SetupBackgroundImage();
 }
 
 void ShutdownAthena() {
   athena::ActivityFactory::Shutdown();
   athena::ActivityManager::Shutdown();
   athena::HomeCard::Shutdown();
   athena::WindowManager::Shutdown();
   athena::ScreenManager::Shutdown();
   athena::InputManager::Shutdown();
+
+  delete views::ViewsDelegate::views_delegate;
 }
 
 }  // namespace athena