content/renderer/input/input_handler_wrapper.h

   1 // Copyright 2013 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_RENDERER_INPUT_INPUT_HANDLER_WRAPPER_H_
   6 #define CONTENT_RENDERER_INPUT_INPUT_HANDLER_WRAPPER_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "content/renderer/input/input_handler_manager.h"
  10 #include "content/renderer/input/input_handler_proxy.h"
  11 #include "content/renderer/input/input_handler_proxy_client.h"
  12
  13 namespace content {
  14
  15 // This class lives on the compositor thread.
  16 class InputHandlerWrapper : public InputHandlerProxyClient {
  17  public:
  18   InputHandlerWrapper(InputHandlerManager* input_handler_manager,
  19                       int routing_id,
  20                       const scoped_refptr<base::MessageLoopProxy>& main_loop,
  21                       const base::WeakPtr<cc::InputHandler>& input_handler,
  22                       const base::WeakPtr<RenderViewImpl>& render_view_impl);
  23   virtual ~InputHandlerWrapper();
  24
  25   int routing_id() const { return routing_id_; }
  26   InputHandlerProxy* input_handler_proxy() { return &input_handler_proxy_; }
  27
  28   // InputHandlerProxyClient implementation.
  29   virtual void WillShutdown() OVERRIDE;
  30   virtual void TransferActiveWheelFlingAnimation(
  31       const blink::WebActiveWheelFlingParameters& params) OVERRIDE;
  32   virtual blink::WebGestureCurve* CreateFlingAnimationCurve(
  33       int deviceSource,
  34       const blink::WebFloatPoint& velocity,
  35       const blink::WebSize& cumulativeScroll) OVERRIDE;
  36   virtual void DidOverscroll(const DidOverscrollParams& params) OVERRIDE;
  37   virtual void DidStopFlinging() OVERRIDE;
  38
  39  private:
  40   InputHandlerManager* input_handler_manager_;
  41   int routing_id_;
  42   InputHandlerProxy input_handler_proxy_;
  43   scoped_refptr<base::MessageLoopProxy> main_loop_;
  44
  45   // Can only be accessed on the main thread.
  46   base::WeakPtr<RenderViewImpl> render_view_impl_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(InputHandlerWrapper);
  49 };
  50
  51 }  // namespace content
  52
  53 #endif  // CONTENT_RENDERER_INPUT_INPUT_HANDLER_WRAPPER_H_