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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.
#ifndef COMPONENTS_VIEW_MANAGER_DISPLAY_MANAGER_H_
#define COMPONENTS_VIEW_MANAGER_DISPLAY_MANAGER_H_
#include <map>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/timer/timer.h"
#include "components/view_manager/native_viewport/platform_viewport.h"
#include "components/view_manager/public/interfaces/display.mojom.h"
#include "components/view_manager/public/interfaces/view_manager.mojom.h"
#include "third_party/mojo/src/mojo/public/cpp/bindings/callback.h"
#include "ui/gfx/geometry/rect.h"
namespace cc {
class SurfaceIdAllocator;
} // namespace cc
namespace gles2 {
class GpuState;
} // namespace gles2
namespace native_viewport {
class OnscreenContextProvider;
} // namespace native_viewport
namespace mojo {
class ApplicationImpl;
} // namespace mojo
namespace view_manager {
class EventDispatcher;
class ConnectionManager;
class ServerView;
// DisplayManager is used to connect the root ServerView to a display.
class DisplayManager {
public:
virtual ~DisplayManager() {}
virtual void Init(
ConnectionManager* connection_manager,
EventDispatcher* event_dispatcher) = 0;
// Schedules a paint for the specified region in the coordinates of |view|.
virtual void SchedulePaint(const ServerView* view,
const gfx::Rect& bounds) = 0;
virtual void SetViewportSize(const gfx::Size& size) = 0;
virtual const mojo::ViewportMetrics& GetViewportMetrics() = 0;
};
// DisplayManager implementation that connects to the services necessary to
// actually display.
class DefaultDisplayManager :
public DisplayManager,
public native_viewport::PlatformViewport::Delegate {
public:
DefaultDisplayManager(
bool is_headless,
mojo::ApplicationImpl* app_impl,
const scoped_refptr<gles2::GpuState>& gpu_state,
const mojo::Callback<void()>& platform_viewport_closed_callback);
~DefaultDisplayManager() override;
// DisplayManager:
void Init(ConnectionManager* connection_manager,
EventDispatcher* event_dispatcher) override;
void SchedulePaint(const ServerView* view, const gfx::Rect& bounds) override;
void SetViewportSize(const gfx::Size& size) override;
const mojo::ViewportMetrics& GetViewportMetrics() override;
private:
void WantToDraw();
void Draw();
void DidDraw();
// PlatformViewport::Delegate implementation:
void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
float device_pixel_ratio) override;
void OnAcceleratedWidgetDestroyed() override;
void OnEvent(mojo::EventPtr event) override;
void OnMetricsChanged(const gfx::Size& size,
float device_scale_factor) override;
void OnDestroyed() override;
bool is_headless_;
mojo::ApplicationImpl* app_impl_;
scoped_refptr<gles2::GpuState> gpu_state_;
ConnectionManager* connection_manager_;
EventDispatcher* event_dispatcher_;
mojo::ViewportMetrics metrics_;
gfx::Rect dirty_rect_;
base::Timer draw_timer_;
bool frame_pending_;
mojo::DisplayPtr display_;
scoped_ptr<native_viewport::OnscreenContextProvider> context_provider_;
scoped_ptr<native_viewport::PlatformViewport> platform_viewport_;
mojo::Callback<void()> platform_viewport_closed_callback_;
base::WeakPtrFactory<DefaultDisplayManager> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DefaultDisplayManager);
};
} // namespace view_manager
#endif // COMPONENTS_VIEW_MANAGER_DISPLAY_MANAGER_H_
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