content/browser/android/composited_touch_handle_drawable.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 CONTENT_BROWSER_ANDROID_COMPOSITED_TOUCH_HANDLE_DRAWABLE_H_
   6 #define CONTENT_BROWSER_ANDROID_COMPOSITED_TOUCH_HANDLE_DRAWABLE_H_
   7
   8 #include "content/browser/renderer_host/input/touch_handle.h"
   9
  10 #include "base/android/jni_android.h"
  11 #include "cc/layers/ui_resource_layer.h"
  12
  13 namespace content {
  14
  15 // Touch handle drawable implementation backed by a cc layer.
  16 class CompositedTouchHandleDrawable : public TouchHandleDrawable {
  17  public:
  18   CompositedTouchHandleDrawable(cc::Layer* root_layer,
  19                                 float dpi_scale,
  20                                 jobject context);
  21   virtual ~CompositedTouchHandleDrawable();
  22
  23   // TouchHandleDrawable implementation.
  24   virtual void SetEnabled(bool enabled) OVERRIDE;
  25   virtual void SetOrientation(TouchHandleOrientation orientation) OVERRIDE;
  26   virtual void SetAlpha(float alpha) OVERRIDE;
  27   virtual void SetFocus(const gfx::PointF& position) OVERRIDE;
  28   virtual void SetVisible(bool visible) OVERRIDE;
  29   virtual bool IntersectsWith(const gfx::RectF& rect) const OVERRIDE;
  30
  31   static bool RegisterHandleViewResources(JNIEnv* env);
  32
  33  private:
  34   void Detach();
  35   gfx::RectF BoundingRect() const;
  36
  37   const float dpi_scale_;
  38   TouchHandleOrientation orientation_;
  39   gfx::PointF focal_position_;
  40   gfx::Vector2dF focal_offset_from_origin_;
  41   scoped_refptr<cc::UIResourceLayer> layer_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(CompositedTouchHandleDrawable);
  44 };
  45
  46 }  // namespace content
  47
  48 #endif  // CONTENT_BROWSER_ANDROID_COMPOSITED_TOUCH_HANDLE_DRAWABLE_H_