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// 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_tree_host.h"
#include "ui/wm/core/capture_controller.h"
namespace athena {
namespace {
ScreenManager* instance = NULL;
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,
aura::Window* window,
const gfx::Rect& bounds) OVERRIDE {
return container_;
}
aura::Window* container_;
DISALLOW_COPY_AND_ASSIGN(AthenaWindowTreeClient);
};
class AthenaScreenPositionClient : public aura::client::ScreenPositionClient {
public:
AthenaScreenPositionClient() {
}
virtual ~AthenaScreenPositionClient() {
}
private:
// aura::client::ScreenPositionClient:
virtual void ConvertPointToScreen(const aura::Window* window,
gfx::Point* point) OVERRIDE {
const aura::Window* root = window->GetRootWindow();
aura::Window::ConvertPointToTarget(window, root, point);
}
virtual void ConvertPointFromScreen(const aura::Window* window,
gfx::Point* point) OVERRIDE {
const aura::Window* root = window->GetRootWindow();
aura::Window::ConvertPointToTarget(root, window, point);
}
virtual void ConvertHostPointToScreen(aura::Window* window,
gfx::Point* point) OVERRIDE {
// TODO(oshima): Implement this when adding multiple display support.
NOTREACHED();
}
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;
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() {
root_window_->SetLayoutManager(new FillLayoutManager(root_window_));
background_window_ =
CreateContainerInternal(root_window_, "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);
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);
}
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
// 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);
}
} // namespace athena
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