Split View Mode: Support for the 2-finger bezel scroll.

athena/wm/window_manager_impl.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/wm/public/window_manager.h"
 
 #include "athena/input/public/accelerator_manager.h"
 #include "athena/screen/public/screen_manager.h"
+#include "athena/wm/bezel_controller.h"
 #include "athena/wm/public/window_manager_observer.h"
+#include "athena/wm/split_view_controller.h"
 #include "athena/wm/window_overview_mode.h"
 #include "base/logging.h"
 #include "base/observer_list.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/aura/window.h"
 #include "ui/wm/public/window_types.h"
 
 namespace athena {
 namespace {
 
@@ skipping 65 matching lines @@
     switch (command_id) {
       case COMMAND_TOGGLE_OVERVIEW:
         ToggleOverview();
         break;
     }
     return true;
   }
 
   scoped_ptr<aura::Window> container_;
   scoped_ptr<WindowOverviewMode> overview_;
+  scoped_ptr<BezelController> bezel_controller_;
+  scoped_ptr<SplitViewController> split_view_controller_;
   ObserverList<WindowManagerObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerImpl);
 };
 
 class WindowManagerImpl* instance = NULL;
 
 class AthenaContainerLayoutManager : public aura::LayoutManager {
  public:
   AthenaContainerLayoutManager() {}
@@ skipping 21 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(AthenaContainerLayoutManager);
 };
 
 WindowManagerImpl::WindowManagerImpl() {
   ScreenManager::ContainerParams params("DefaultContainer");
   params.can_activate_children = true;
   container_.reset(ScreenManager::Get()->CreateDefaultContainer(params));
   container_->SetLayoutManager(new AthenaContainerLayoutManager);
   container_->AddObserver(this);
+  bezel_controller_.reset(new BezelController(container_.get()));
+  split_view_controller_.reset(new SplitViewController());
+  bezel_controller_->set_left_right_delegate(split_view_controller_.get());
+  container_->AddPreTargetHandler(bezel_controller_.get());
   instance = this;
   InstallAccelerators();
 }
 
 WindowManagerImpl::~WindowManagerImpl() {
-  if (container_)
+  if (container_) {
     container_->RemoveObserver(this);
+    container_->RemovePreTargetHandler(bezel_controller_.get());
+  }
   container_.reset();
   instance = NULL;
 }
 
 void WindowManagerImpl::Layout() {
   if (!container_)
     return;
   gfx::Rect bounds = gfx::Rect(container_->bounds().size());
   const aura::Window::Windows& children = container_->children();
   for (aura::Window::Windows::const_iterator iter = children.begin();
@@ skipping 22 matching lines @@
   DCHECK(!instance);
 }
 
 // static
 WindowManager* WindowManager::GetInstance() {
   DCHECK(instance);
   return instance;
 }
 
 }  // namespace athena