Athena's FocusRules

athena/screen/screen_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/screen/public/screen_manager.h"
 
 #include "athena/common/fill_layout_manager.h"
 #include "athena/input/public/accelerator_manager.h"
 #include "athena/screen/background_controller.h"
 #include "athena/screen/screen_accelerator_handler.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/client/window_tree_client.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/aura/window.h"
+#include "ui/aura/window_property.h"
 #include "ui/aura/window_tree_host.h"
+#include "ui/wm/core/base_focus_rules.h"
 #include "ui/wm/core/capture_controller.h"
 
 namespace athena {
 namespace {
 
+DEFINE_OWNED_WINDOW_PROPERTY_KEY(ScreenManager::ContainerParams,
+                                 kContainerParamsKey,
+                                 NULL);
+
 ScreenManager* instance = NULL;
 
+class AthenaFocusRules : public wm::BaseFocusRules {
+ public:
+  AthenaFocusRules() {}
+  virtual ~AthenaFocusRules() {}
+
+  // wm::BaseFocusRules:
+  virtual bool SupportsChildActivation(aura::Window* window) const OVERRIDE {
+    ScreenManager::ContainerParams* params =
+        window->GetProperty(kContainerParamsKey);
+    return params && params->can_activate_children;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AthenaFocusRules);
+};
+
 class AthenaWindowTreeClient : public aura::client::WindowTreeClient {
  public:
   explicit AthenaWindowTreeClient(aura::Window* container)
       : container_(container) {}
 
  private:
   virtual ~AthenaWindowTreeClient() {}
 
   // aura::client::WindowTreeClient:
   virtual aura::Window* GetDefaultParent(aura::Window* context,
@@ skipping 36 matching lines @@
 
   virtual void SetBounds(aura::Window* window,
                          const gfx::Rect& bounds,
                          const gfx::Display& display) OVERRIDE {
     window->SetBounds(bounds);
   }
 
   DISALLOW_COPY_AND_ASSIGN(AthenaScreenPositionClient);
 };
 
-aura::Window* CreateContainerInternal(aura::Window* parent,
-                                      const std::string& name) {
-  aura::Window* container = new aura::Window(NULL);
-  container->Init(aura::WINDOW_LAYER_NOT_DRAWN);
-  container->SetName(name);
-  parent->AddChild(container);
-  container->Show();
-  return container;
-}
-
 class ScreenManagerImpl : public ScreenManager {
  public:
   explicit ScreenManagerImpl(aura::Window* root_window);
   virtual ~ScreenManagerImpl();
 
   void Init();
 
  private:
   // ScreenManager:
   virtual aura::Window* CreateDefaultContainer(
-      const std::string& name) OVERRIDE;
-  virtual aura::Window* CreateContainer(const std::string& name) OVERRIDE;
+      const ContainerParams& params) OVERRIDE;
+  virtual aura::Window* CreateContainer(const ContainerParams& params) OVERRIDE;
   virtual aura::Window* GetContext() OVERRIDE { return root_window_; }
   virtual void SetBackgroundImage(const gfx::ImageSkia& image) OVERRIDE;
 
   aura::Window* root_window_;
   aura::Window* background_window_;
 
   scoped_ptr<BackgroundController> background_controller_;
   scoped_ptr<aura::client::WindowTreeClient> window_tree_client_;
   scoped_ptr<AcceleratorHandler> accelerator_handler_;
   scoped_ptr< ::wm::ScopedCaptureClient> capture_client_;
   scoped_ptr<aura::client::ScreenPositionClient> screen_position_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenManagerImpl);
 };
 
 void ScreenManagerImpl::Init() {
+  // TODO(oshima): Move the background out from ScreenManager.
   root_window_->SetLayoutManager(new FillLayoutManager(root_window_));
-  background_window_ =
-      CreateContainerInternal(root_window_, "AthenaBackground");
+  background_window_ = CreateContainer(ContainerParams("AthenaBackground"));
+
   background_window_->SetLayoutManager(
       new FillLayoutManager(background_window_));
   background_controller_.reset(new BackgroundController(background_window_));
 
   capture_client_.reset(new ::wm::ScopedCaptureClient(root_window_));
   accelerator_handler_.reset(new ScreenAcceleratorHandler(root_window_));
 }
 
 aura::Window* ScreenManagerImpl::CreateDefaultContainer(
-    const std::string& name) {
-  aura::Window* container = CreateContainerInternal(root_window_, name);
+    const ContainerParams& params) {
+  aura::Window* container = CreateContainer(params);
   window_tree_client_.reset(new AthenaWindowTreeClient(container));
   aura::client::SetWindowTreeClient(root_window_, window_tree_client_.get());
 
   screen_position_client_.reset(new AthenaScreenPositionClient());
   aura::client::SetScreenPositionClient(root_window_,
                                         screen_position_client_.get());
 
   return container;
 }
 
-aura::Window* ScreenManagerImpl::CreateContainer(const std::string& name) {
-  return CreateContainerInternal(root_window_, name);
+aura::Window* ScreenManagerImpl::CreateContainer(
+    const ContainerParams& params) {
+  aura::Window* container = new aura::Window(NULL);
+  container->Init(aura::WINDOW_LAYER_NOT_DRAWN);
+  container->SetName(params.name);
+  root_window_->AddChild(container);
+  container->Show();
+  container->SetProperty(kContainerParamsKey, new ContainerParams(params));
+  return container;
 }
 
 void ScreenManagerImpl::SetBackgroundImage(const gfx::ImageSkia& image) {
   background_controller_->SetImage(image);
 }
 
 ScreenManagerImpl::ScreenManagerImpl(aura::Window* root_window)
     : root_window_(root_window) {
   DCHECK(root_window_);
   DCHECK(!instance);
   instance = this;
 }
 
 ScreenManagerImpl::~ScreenManagerImpl() {
   aura::client::SetScreenPositionClient(root_window_, NULL);
   aura::client::SetWindowTreeClient(root_window_, NULL);
   instance = NULL;
 }
 
 }  // namespace
 
+ScreenManager::ContainerParams::ContainerParams(const std::string& n)
+    : name(n),
+      can_activate_children(false) {
+}
+
 // static
 ScreenManager* ScreenManager::Create(aura::Window* root_window) {
   (new ScreenManagerImpl(root_window))->Init();
   DCHECK(instance);
   return instance;
 }
 
 // static
 ScreenManager* ScreenManager::Get() {
   DCHECK(instance);
   return instance;
 }
 
 // static
 void ScreenManager::Shutdown() {
   DCHECK(instance);
   delete instance;
   DCHECK(!instance);
 }
 
+// static
+wm::FocusRules* ScreenManager::CreateFocusRules() {
+  return new AthenaFocusRules();
+}
+
 }  // namespace athena