mojo/services/html_viewer/weblayertreeview_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_SERVICES_HTML_VIEWER_WEBLAYERTREEVIEW_IMPL_H_
   6 #define MOJO_SERVICES_HTML_VIEWER_WEBLAYERTREEVIEW_IMPL_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/single_thread_task_runner.h"
  13 #include "cc/trees/layer_tree_host_client.h"
  14 #include "mojo/cc/output_surface_mojo.h"
  15 #include "mojo/services/gpu/public/interfaces/gpu.mojom.h"
  16 #include "mojo/services/surfaces/public/interfaces/surfaces_service.mojom.h"
  17 #include "third_party/WebKit/public/platform/WebLayerTreeView.h"
  18
  19 namespace base {
  20 class MessageLoopProxy;
  21 }
  22
  23 namespace blink {
  24 class WebWidget;
  25 }
  26
  27 namespace cc {
  28 class LayerTreeHost;
  29 }
  30
  31 namespace mojo {
  32 class View;
  33
  34 class WebLayerTreeViewImpl : public blink::WebLayerTreeView,
  35                              public cc::LayerTreeHostClient,
  36                              public OutputSurfaceMojoClient {
  37  public:
  38   WebLayerTreeViewImpl(
  39       scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy,
  40       SurfacesServicePtr surfaces_service,
  41       GpuPtr gpu_service);
  42   virtual ~WebLayerTreeViewImpl();
  43
  44   void set_widget(blink::WebWidget* widget) { widget_ = widget; }
  45   void set_view(View* view) { view_ = view; }
  46
  47   // cc::LayerTreeHostClient implementation.
  48   void WillBeginMainFrame(int frame_id) override;
  49   void DidBeginMainFrame() override;
  50   void BeginMainFrame(const cc::BeginFrameArgs& args) override;
  51   void Layout() override;
  52   void ApplyViewportDeltas(const gfx::Vector2d& inner_delta,
  53                            const gfx::Vector2d& outer_delta,
  54                            const gfx::Vector2dF& elastic_overscroll_delta,
  55                            float page_scale,
  56                            float top_controls_delta) override;
  57   void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
  58                            float page_scale,
  59                            float top_controls_delta) override;
  60   void RequestNewOutputSurface() override;
  61   void DidFailToInitializeOutputSurface() override;
  62   void DidInitializeOutputSurface() override;
  63   void WillCommit() override;
  64   void DidCommit() override;
  65   void DidCommitAndDrawFrame() override;
  66   void DidCompleteSwapBuffers() override;
  67   void RateLimitSharedMainThreadContext() override {}
  68
  69   // blink::WebLayerTreeView implementation.
  70   virtual void setSurfaceReady();
  71   virtual void setRootLayer(const blink::WebLayer& layer);
  72   virtual void clearRootLayer();
  73   virtual void setViewportSize(const blink::WebSize& device_viewport_size);
  74   virtual blink::WebSize deviceViewportSize() const;
  75   virtual void setDeviceScaleFactor(float);
  76   virtual float deviceScaleFactor() const;
  77   virtual void setBackgroundColor(blink::WebColor color);
  78   virtual void setHasTransparentBackground(bool has_transparent_background);
  79   virtual void setOverhangBitmap(const SkBitmap& bitmap);
  80   virtual void setVisible(bool visible);
  81   virtual void setPageScaleFactorAndLimits(float page_scale_factor,
  82                                            float minimum,
  83                                            float maximum);
  84   virtual void startPageScaleAnimation(const blink::WebPoint& destination,
  85                                        bool use_anchor,
  86                                        float new_page_scale,
  87                                        double duration_sec);
  88   virtual void heuristicsForGpuRasterizationUpdated(bool matches_heuristic) {}
  89   virtual void setTopControlsContentOffset(float offset) {}
  90   virtual void setNeedsAnimate();
  91   virtual bool commitRequested() const;
  92   virtual void didStopFlinging() {}
  93   virtual void compositeAndReadbackAsync(
  94       blink::WebCompositeAndReadbackAsyncCallback* callback) {}
  95   virtual void finishAllRendering();
  96   virtual void setDeferCommits(bool defer_commits) {}
  97   virtual void registerForAnimations(blink::WebLayer* layer);
  98   virtual void registerViewportLayers(
  99       const blink::WebLayer* overscrollElasticityLayer,
 100       const blink::WebLayer* pageScaleLayerLayer,
 101       const blink::WebLayer* innerViewportScrollLayer,
 102       const blink::WebLayer* outerViewportScrollLayer);
 103   virtual void clearViewportLayers();
 104   virtual void registerSelection(const blink::WebSelectionBound& start,
 105                                  const blink::WebSelectionBound& end) {}
 106   virtual void clearSelection() {}
 107   virtual void setShowFPSCounter(bool) {}
 108   virtual void setShowPaintRects(bool) {}
 109   virtual void setShowDebugBorders(bool) {}
 110   virtual void setContinuousPaintingEnabled(bool) {}
 111   virtual void setShowScrollBottleneckRects(bool) {}
 112
 113   // OutputSurfaceMojoClient implementation.
 114   void DidCreateSurface(cc::SurfaceId id) override;
 115
 116  private:
 117   void OnSurfaceConnectionCreated(SurfacePtr surface, uint32_t id_namespace);
 118   void DidCreateSurfaceOnMainThread(cc::SurfaceId id);
 119
 120   // widget_ and view_ will outlive us.
 121   blink::WebWidget* widget_;
 122   View* view_;
 123   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
 124   SurfacesServicePtr surfaces_service_;
 125   scoped_ptr<cc::OutputSurface> output_surface_;
 126   GpuPtr gpu_service_;
 127   scoped_refptr<base::SingleThreadTaskRunner>
 128       main_thread_compositor_task_runner_;
 129   base::WeakPtr<WebLayerTreeViewImpl> main_thread_bound_weak_ptr_;
 130
 131   base::WeakPtrFactory<WebLayerTreeViewImpl> weak_factory_;
 132   DISALLOW_COPY_AND_ASSIGN(WebLayerTreeViewImpl);
 133 };
 134
 135 }  // namespace mojo
 136
 137 #endif  // MOJO_SERVICES_HTML_VIEWER_WEBLAYERTREEVIEW_IMPL_H_