| // Copyright 2013 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 UI_OZONE_OZONE_PLATFORM_H_ |
| #define UI_OZONE_OZONE_PLATFORM_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "ui/ozone/ozone_export.h" |
| |
| namespace ui { |
| |
| class CursorFactoryOzone; |
| class EventFactoryOzone; |
| class NativeDisplayDelegate; |
| class SurfaceFactoryOzone; |
| class TouchscreenDeviceManager; |
| class GpuPlatformSupport; |
| class GpuPlatformSupportHost; |
| |
| // Base class for Ozone platform implementations. |
| // |
| // Ozone platforms must override this class and implement the virtual |
| // GetFooFactoryOzone() methods to provide implementations of the |
| // various ozone interfaces. |
| // |
| // The OzonePlatform subclass can own any state needed by the |
| // implementation that is shared between the various ozone interfaces, |
| // such as a connection to the windowing system. |
| // |
| // A platform is free to use different implementations of each |
| // interface depending on the context. You can, for example, create |
| // different objects depending on the underlying hardware, command |
| // line flags, or whatever is appropriate for the platform. |
| class OZONE_EXPORT OzonePlatform { |
| public: |
| OzonePlatform(); |
| virtual ~OzonePlatform(); |
| |
| // Initializes the subsystems/resources necessary for the UI process (e.g. |
| // events, surface, etc.) |
| static void InitializeForUI(); |
| |
| // Initializes the subsystems/resources necessary for the GPU process. |
| static void InitializeForGPU(); |
| |
| static OzonePlatform* GetInstance(); |
| |
| // Factory getters to override in subclasses. The returned objects will be |
| // injected into the appropriate layer at startup. Subclasses should not |
| // inject these objects themselves. Ownership is retained by OzonePlatform. |
| virtual ui::SurfaceFactoryOzone* GetSurfaceFactoryOzone() = 0; |
| virtual ui::EventFactoryOzone* GetEventFactoryOzone() = 0; |
| virtual ui::CursorFactoryOzone* GetCursorFactoryOzone() = 0; |
| virtual ui::GpuPlatformSupport* GetGpuPlatformSupport() = 0; |
| virtual ui::GpuPlatformSupportHost* GetGpuPlatformSupportHost() = 0; |
| #if defined(OS_CHROMEOS) |
| virtual scoped_ptr<ui::NativeDisplayDelegate> |
| CreateNativeDisplayDelegate() = 0; |
| virtual scoped_ptr<ui::TouchscreenDeviceManager> |
| CreateTouchscreenDeviceManager() = 0; |
| #endif |
| |
| private: |
| virtual void InitializeUI() = 0; |
| virtual void InitializeGPU() = 0; |
| |
| static void CreateInstance(); |
| |
| static OzonePlatform* instance_; |
| |
| DISALLOW_COPY_AND_ASSIGN(OzonePlatform); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_OZONE_OZONE_PLATFORM_H_ |