[Android] Composited selection handle rendering

content/browser/renderer_host/render_widget_host_view_android.h

Index: content/browser/renderer_host/render_widget_host_view_android.h
diff --git a/content/browser/renderer_host/render_widget_host_view_android.h b/content/browser/renderer_host/render_widget_host_view_android.h
index bcecff8156709bd70e0d3fdf2f84b0d98b43dc88..b60a082ed7001b6a8e9b25aa4538c85fec790d11 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.h
+++ b/content/browser/renderer_host/render_widget_host_view_android.h
@@ -21,6 +21,7 @@
 #include "content/browser/renderer_host/image_transport_factory_android.h"
 #include "content/browser/renderer_host/ime_adapter_android.h"
 #include "content/browser/renderer_host/input/gesture_text_selector.h"
+#include "content/browser/renderer_host/input/touch_selection_controller.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/common/content_export.h"
 #include "gpu/command_buffer/common/mailbox.h"
@@ -67,7 +68,8 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
       public ui::GestureProviderClient,
       public ui::WindowAndroidObserver,
       public DelegatedFrameEvictorClient,
-      public GestureTextSelectorClient {
+      public GestureTextSelectorClient,
+      public TouchSelectionControllerClient {
  public:
   RenderWidgetHostViewAndroid(RenderWidgetHostImpl* widget,
                               ContentViewCoreImpl* content_view_core);
@@ -211,6 +213,7 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
                                 const gfx::Rect rect);
 
   bool OnTouchEvent(const ui::MotionEvent& event);
+  bool OnTouchHandleEvent(const ui::MotionEvent& event);
   void ResetGestureDetection();
   void SetDoubleTapSupportEnabled(bool enabled);
   void SetMultiTouchZoomSupportEnabled(bool enabled);
@@ -228,6 +231,7 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   bool HasValidFrame() const;
 
   void MoveCaret(const gfx::Point& point);
+  void HideTextHandles();
 
   void SynchronousFrameMetadata(
       const cc::CompositorFrameMetadata& frame_metadata);
@@ -241,6 +245,16 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
       const TextSurroundingSelectionCallback& callback);
 
  private:
+  // TouchSelectionControllerClient implementation.
+  virtual bool SupportsAnimation() const OVERRIDE;
+  virtual void SetNeedsAnimate() OVERRIDE;
+  virtual void MoveCaret(const gfx::PointF& position) OVERRIDE;
+  virtual void SelectBetweenCoordinates(const gfx::PointF& start,
+                                        const gfx::PointF& end) OVERRIDE;
+  virtual void OnSelectionEvent(SelectionEventType event,
+                                const gfx::PointF& anchor_position) OVERRIDE;
+  virtual scoped_ptr<TouchHandleDrawable> CreateDrawable() OVERRIDE;
+
   void RunAckCallbacks();
 
   void DestroyDelegatedContent();
@@ -295,9 +309,10 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   void InternalSwapCompositorFrame(uint32 output_surface_id,
                                    scoped_ptr<cc::CompositorFrame> frame);
 
-  void SetNeedsAnimate();
   bool Animate(base::TimeTicks frame_time);
 
+  float GetDpiScale() const;
+
   // The model object.
   RenderWidgetHostImpl* host_;
 
@@ -346,6 +361,10 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   // Handles gesture based text selection
   GestureTextSelector gesture_text_selector_;
 
+  // Manages selection handle rendering and manipulation.
+  // This will always be NULL if |content_view_core_| is NULL.
+  scoped_ptr<TouchSelectionController> selection_controller_;
+
   bool flush_input_requested_;
 
   int accelerated_surface_route_id_;
@@ -353,10 +372,6 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   // Size to use if we have no backing ContentViewCore
   gfx::Size default_size_;
 
-  // Cached selection bounds to avoid redundant selection handle updates.
-  cc::ViewportSelectionBound cached_selection_start_;
-  cc::ViewportSelectionBound cached_selection_end_;
-
   const bool using_synchronous_compositor_;
 
   scoped_ptr<DelegatedFrameEvictor> frame_evictor_;