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 "base/single_thread_task_runner.h"
  10 #include "content/renderer/input/input_handler_manager.h"
  11 #include "content/renderer/input/input_handler_proxy.h"
  12 #include "content/renderer/input/input_handler_proxy_client.h"
  13
  14 namespace content {
  15
  16 // This class lives on the compositor thread.
  17 class InputHandlerWrapper : public InputHandlerProxyClient {
  18  public:
  19   InputHandlerWrapper(
  20       InputHandlerManager* input_handler_manager,
  21       int routing_id,
  22       const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
  23       const base::WeakPtr<cc::InputHandler>& input_handler,
  24       const base::WeakPtr<RenderViewImpl>& render_view_impl);
  25   ~InputHandlerWrapper() override;
  26
  27   int routing_id() const { return routing_id_; }
  28   InputHandlerProxy* input_handler_proxy() { return &input_handler_proxy_; }
  29
  30   // InputHandlerProxyClient implementation.
  31   void WillShutdown() override;
  32   void TransferActiveWheelFlingAnimation(
  33       const blink::WebActiveWheelFlingParameters& params) override;
  34   blink::WebGestureCurve* CreateFlingAnimationCurve(
  35       blink::WebGestureDevice deviceSource,
  36       const blink::WebFloatPoint& velocity,
  37       const blink::WebSize& cumulativeScroll) override;
  38   void DidOverscroll(const DidOverscrollParams& params) override;
  39   void DidStopFlinging() override;
  40   void DidAnimateForInput() override;
  41
  42  private:
  43   InputHandlerManager* input_handler_manager_;
  44   int routing_id_;
  45   InputHandlerProxy input_handler_proxy_;
  46   scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
  47
  48   // Can only be accessed on the main thread.
  49   base::WeakPtr<RenderViewImpl> render_view_impl_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(InputHandlerWrapper);
  52 };
  53
  54 }  // namespace content
  55
  56 #endif  // CONTENT_RENDERER_INPUT_INPUT_HANDLER_WRAPPER_H_