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// 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 CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
#define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "cc/input/layer_scroll_offset_delegate.h"
#include "content/browser/android/in_process/synchronous_compositor_output_surface.h"
#include "content/port/common/input_event_ack_state.h"
#include "content/public/browser/android/synchronous_compositor.h"
#include "content/public/browser/web_contents_user_data.h"
namespace cc {
class InputHandler;
struct DidOverscrollParams;
}
namespace WebKit {
class WebInputEvent;
}
namespace content {
class InputHandlerManager;
// The purpose of this class is to act as the intermediary between the various
// components that make up the 'synchronous compositor mode' implementation and
// expose their functionality via the SynchronousCompositor interface.
// This class is created on the main thread but most of the APIs are called
// from the Compositor thread.
class SynchronousCompositorImpl
: public cc::LayerScrollOffsetDelegate,
public SynchronousCompositor,
public SynchronousCompositorOutputSurfaceDelegate,
public WebContentsUserData<SynchronousCompositorImpl> {
public:
// When used from browser code, use both |process_id| and |routing_id|.
static SynchronousCompositorImpl* FromID(int process_id, int routing_id);
// When handling upcalls from renderer code, use this version; the process id
// is implicitly that of the in-process renderer.
static SynchronousCompositorImpl* FromRoutingID(int routing_id);
InputEventAckState HandleInputEvent(const WebKit::WebInputEvent& input_event);
// SynchronousCompositor
virtual void SetClient(SynchronousCompositorClient* compositor_client)
OVERRIDE;
virtual bool InitializeHwDraw(
scoped_refptr<gfx::GLSurface> surface) OVERRIDE;
virtual void ReleaseHwDraw() OVERRIDE;
virtual bool DemandDrawHw(
gfx::Size surface_size,
const gfx::Transform& transform,
gfx::Rect viewport,
gfx::Rect clip,
bool stencil_enabled) OVERRIDE;
virtual bool DemandDrawSw(SkCanvas* canvas) OVERRIDE;
virtual void SetMemoryPolicy(
const SynchronousCompositorMemoryPolicy& policy) OVERRIDE;
virtual void DidChangeRootLayerScrollOffset() OVERRIDE;
// SynchronousCompositorOutputSurfaceDelegate
virtual void DidBindOutputSurface(
SynchronousCompositorOutputSurface* output_surface) OVERRIDE;
virtual void DidDestroySynchronousOutputSurface(
SynchronousCompositorOutputSurface* output_surface) OVERRIDE;
virtual void SetContinuousInvalidate(bool enable) OVERRIDE;
virtual void UpdateFrameMetaData(
const cc::CompositorFrameMetadata& frame_info) OVERRIDE;
virtual void DidActivatePendingTree() OVERRIDE;
// LayerScrollOffsetDelegate
virtual void SetTotalScrollOffset(gfx::Vector2dF new_value) OVERRIDE;
virtual gfx::Vector2dF GetTotalScrollOffset() OVERRIDE;
void SetInputHandler(cc::InputHandler* input_handler);
void DidOverscroll(const cc::DidOverscrollParams& params);
private:
explicit SynchronousCompositorImpl(WebContents* contents);
virtual ~SynchronousCompositorImpl();
friend class WebContentsUserData<SynchronousCompositorImpl>;
void DidCreateSynchronousOutputSurface(
SynchronousCompositorOutputSurface* output_surface);
bool CalledOnValidThread() const;
SynchronousCompositorClient* compositor_client_;
SynchronousCompositorOutputSurface* output_surface_;
WebContents* contents_;
cc::InputHandler* input_handler_;
DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorImpl);
};
} // namespace content
#endif // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
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