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Diffstat (limited to 'ui/ozone/ozone_platform.h')
-rw-r--r-- | ui/ozone/ozone_platform.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/ui/ozone/ozone_platform.h b/ui/ozone/ozone_platform.h new file mode 100644 index 0000000..2426b23 --- /dev/null +++ b/ui/ozone/ozone_platform.h @@ -0,0 +1,55 @@ +// 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/events/ozone/event_factory_ozone.h" +#include "ui/gfx/ozone/surface_factory_ozone.h" +#include "ui/ozone/ozone_export.h" + +namespace ui { + +// 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(); + + // Initialize the platform. Once complete, SurfaceFactoryOzone & + // EventFactoryOzone will be set. + static void Initialize(); + + // 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 gfx::SurfaceFactoryOzone* GetSurfaceFactoryOzone() = 0; + virtual ui::EventFactoryOzone* GetEventFactoryOzone() = 0; + + private: + static OzonePlatform* instance_; + + DISALLOW_COPY_AND_ASSIGN(OzonePlatform); +}; + +// Hook to be provided by the built-in default implementation. +OzonePlatform* CreateDefaultOzonePlatform(); + +} // namespace ui + +#endif // UI_OZONE_OZONE_PLATFORM_H_ |