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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 MOJO_SERVICES_HTML_VIEWER_WEBLAYERTREEVIEW_IMPL_H_
#define MOJO_SERVICES_HTML_VIEWER_WEBLAYERTREEVIEW_IMPL_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "cc/trees/layer_tree_host_client.h"
#include "mojo/cc/output_surface_mojo.h"
#include "mojo/services/public/interfaces/gpu/gpu.mojom.h"
#include "mojo/services/public/interfaces/surfaces/surfaces_service.mojom.h"
#include "third_party/WebKit/public/platform/WebLayerTreeView.h"
namespace base {
class MessageLoopProxy;
}
namespace blink {
class WebWidget;
}
namespace cc {
class LayerTreeHost;
}
namespace mojo {
class View;
class WebLayerTreeViewImpl : public blink::WebLayerTreeView,
public cc::LayerTreeHostClient,
public OutputSurfaceMojoClient {
public:
WebLayerTreeViewImpl(
scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy,
SurfacesServicePtr surfaces_service,
GpuPtr gpu_service);
virtual ~WebLayerTreeViewImpl();
void set_widget(blink::WebWidget* widget) { widget_ = widget; }
void set_view(View* view) { view_ = view; }
// cc::LayerTreeHostClient implementation.
void WillBeginMainFrame(int frame_id) override;
void DidBeginMainFrame() override;
void BeginMainFrame(const cc::BeginFrameArgs& args) override;
void Layout() override;
void ApplyViewportDeltas(const gfx::Vector2d& inner_delta,
const gfx::Vector2d& outer_delta,
float page_scale,
float top_controls_delta) override;
void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
float page_scale,
float top_controls_delta) override;
void RequestNewOutputSurface(bool fallback) override;
void DidInitializeOutputSurface() override;
void WillCommit() override;
void DidCommit() override;
void DidCommitAndDrawFrame() override;
void DidCompleteSwapBuffers() override;
void RateLimitSharedMainThreadContext() override {}
// blink::WebLayerTreeView implementation.
virtual void setSurfaceReady() override;
virtual void setRootLayer(const blink::WebLayer& layer) override;
virtual void clearRootLayer() override;
virtual void setViewportSize(
const blink::WebSize& device_viewport_size) override;
virtual blink::WebSize deviceViewportSize() const override;
virtual void setDeviceScaleFactor(float) override;
virtual float deviceScaleFactor() const override;
virtual void setBackgroundColor(blink::WebColor color) override;
virtual void setHasTransparentBackground(
bool has_transparent_background) override;
virtual void setOverhangBitmap(const SkBitmap& bitmap) override;
virtual void setVisible(bool visible) override;
virtual void setPageScaleFactorAndLimits(float page_scale_factor,
float minimum,
float maximum) override;
virtual void startPageScaleAnimation(const blink::WebPoint& destination,
bool use_anchor,
float new_page_scale,
double duration_sec) override;
virtual void heuristicsForGpuRasterizationUpdated(bool matches_heuristic) {}
virtual void setTopControlsContentOffset(float offset) {}
virtual void setNeedsAnimate() override;
virtual bool commitRequested() const override;
virtual void didStopFlinging() {}
virtual void compositeAndReadbackAsync(
blink::WebCompositeAndReadbackAsyncCallback* callback) {}
virtual void finishAllRendering() override;
virtual void setDeferCommits(bool defer_commits) {}
virtual void registerForAnimations(blink::WebLayer* layer) override;
virtual void registerViewportLayers(
const blink::WebLayer* overscrollElasticityLayer,
const blink::WebLayer* pageScaleLayerLayer,
const blink::WebLayer* innerViewportScrollLayer,
const blink::WebLayer* outerViewportScrollLayer) override;
// TODO(ccameron): Remove this when Blink no longer calls it.
virtual void registerViewportLayers(
const blink::WebLayer* page_scale_layer,
const blink::WebLayer* inner_viewport_scroll_layer,
const blink::WebLayer* outer_viewport_scroll_layer) override;
virtual void clearViewportLayers() override;
virtual void registerSelection(const blink::WebSelectionBound& start,
const blink::WebSelectionBound& end) {}
virtual void clearSelection() {}
virtual void setShowFPSCounter(bool) {}
virtual void setShowPaintRects(bool) {}
virtual void setShowDebugBorders(bool) {}
virtual void setContinuousPaintingEnabled(bool) {}
virtual void setShowScrollBottleneckRects(bool) {}
// OutputSurfaceMojoClient implementation.
void DidCreateSurface(cc::SurfaceId id) override;
private:
void OnSurfaceConnectionCreated(SurfacePtr surface, uint32_t id_namespace);
void DidCreateSurfaceOnMainThread(cc::SurfaceId id);
// widget_ and view_ will outlive us.
blink::WebWidget* widget_;
View* view_;
scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
SurfacesServicePtr surfaces_service_;
scoped_ptr<cc::OutputSurface> output_surface_;
GpuPtr gpu_service_;
scoped_refptr<base::SingleThreadTaskRunner>
main_thread_compositor_task_runner_;
base::WeakPtr<WebLayerTreeViewImpl> main_thread_bound_weak_ptr_;
base::WeakPtrFactory<WebLayerTreeViewImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(WebLayerTreeViewImpl);
};
} // namespace mojo
#endif // MOJO_SERVICES_HTML_VIEWER_WEBLAYERTREEVIEW_IMPL_H_
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