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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_MUS_WS_DISPLAY_MANAGER_H_
#define COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_
#include <stdint.h>
#include <map>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "base/timer/timer.h"
#include "build/build_config.h"
#include "components/mus/public/interfaces/window_tree.mojom.h"
#include "components/mus/ws/display_manager_delegate.h"
#include "mojo/public/cpp/bindings/callback.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/platform_window/platform_window_delegate.h"
namespace cc {
class CompositorFrame;
class SurfaceIdAllocator;
class SurfaceManager;
} // namespace cc
namespace gles2 {
class GpuState;
} // namespace gles2
namespace mojo {
class ApplicationImpl;
} // namespace mojo
namespace ui {
class CursorLoader;
class PlatformWindow;
struct TextInputState;
} // namespace ui
namespace mus {
class GpuState;
class SurfacesState;
class TopLevelDisplayClient;
namespace ws {
class DisplayManagerFactory;
class EventDispatcher;
class ServerWindow;
// DisplayManager is used to connect the root ServerWindow to a display.
class DisplayManager {
public:
virtual ~DisplayManager() {}
static DisplayManager* Create(
mojo::ApplicationImpl* app_impl,
const scoped_refptr<GpuState>& gpu_state,
const scoped_refptr<SurfacesState>& surfaces_state);
virtual void Init(DisplayManagerDelegate* delegate) = 0;
// Schedules a paint for the specified region in the coordinates of |window|.
virtual void SchedulePaint(const ServerWindow* window,
const gfx::Rect& bounds) = 0;
virtual void SetViewportSize(const gfx::Size& size) = 0;
virtual void SetTitle(const base::string16& title) = 0;
virtual void SetCursorById(int32_t cursor) = 0;
virtual const mojom::ViewportMetrics& GetViewportMetrics() = 0;
virtual void UpdateTextInputState(const ui::TextInputState& state) = 0;
virtual void SetImeVisibility(bool visible) = 0;
// Returns true if a compositor frame has been submitted but not drawn yet.
virtual bool IsFramePending() const = 0;
// Overrides factory for testing. Default (NULL) value indicates regular
// (non-test) environment.
static void set_factory_for_testing(DisplayManagerFactory* factory) {
DisplayManager::factory_ = factory;
}
private:
// Static factory instance (always NULL for non-test).
static DisplayManagerFactory* factory_;
};
// DisplayManager implementation that connects to the services necessary to
// actually display.
class DefaultDisplayManager : public DisplayManager,
public ui::PlatformWindowDelegate {
public:
DefaultDisplayManager(mojo::ApplicationImpl* app_impl,
const scoped_refptr<GpuState>& gpu_state,
const scoped_refptr<SurfacesState>& surfaces_state);
~DefaultDisplayManager() override;
// DisplayManager:
void Init(DisplayManagerDelegate* delegate) override;
void SchedulePaint(const ServerWindow* window,
const gfx::Rect& bounds) override;
void SetViewportSize(const gfx::Size& size) override;
void SetTitle(const base::string16& title) override;
void SetCursorById(int32_t cursor) override;
const mojom::ViewportMetrics& GetViewportMetrics() override;
void UpdateTextInputState(const ui::TextInputState& state) override;
void SetImeVisibility(bool visible) override;
bool IsFramePending() const override;
private:
void WantToDraw();
// This method initiates a top level redraw of the display.
// TODO(fsamuel): This should use vblank as a signal rather than a timer
// http://crbug.com/533042
void Draw();
// This is called after cc::Display has completed generating a new frame
// for the display. TODO(fsamuel): Idle time processing should happen here
// if there is budget for it.
void DidDraw();
void UpdateMetrics(const gfx::Size& size, float device_pixel_ratio);
scoped_ptr<cc::CompositorFrame> GenerateCompositorFrame();
// ui::PlatformWindowDelegate:
void OnBoundsChanged(const gfx::Rect& new_bounds) override;
void OnDamageRect(const gfx::Rect& damaged_region) override;
void DispatchEvent(ui::Event* event) override;
void OnCloseRequest() override;
void OnClosed() override;
void OnWindowStateChanged(ui::PlatformWindowState new_state) override;
void OnLostCapture() override;
void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
float device_pixel_ratio) override;
void OnAcceleratedWidgetDestroyed() override;
void OnActivationChanged(bool active) override;
mojo::ApplicationImpl* app_impl_;
scoped_refptr<GpuState> gpu_state_;
scoped_refptr<SurfacesState> surfaces_state_;
DisplayManagerDelegate* delegate_;
mojom::ViewportMetrics metrics_;
gfx::Rect dirty_rect_;
base::Timer draw_timer_;
bool frame_pending_;
scoped_ptr<TopLevelDisplayClient> top_level_display_client_;
scoped_ptr<ui::PlatformWindow> platform_window_;
#if !defined(OS_ANDROID)
scoped_ptr<ui::CursorLoader> cursor_loader_;
#endif
base::WeakPtrFactory<DefaultDisplayManager> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DefaultDisplayManager);
};
} // namespace ws
} // namespace mus
#endif // COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_
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