[WIP] BufferedInputRouter

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
 #include <queue>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/process/kill.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
+#include "content/browser/renderer_host/input/input_ack_handler.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
 #include "content/browser/renderer_host/synthetic_gesture_controller.h"
 #include "content/common/browser_rendering_stats.h"
 #include "content/common/view_message_enums.h"
 #include "content/port/browser/event_with_latency_info.h"
 #include "content/port/common/input_event_ack_state.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/common/page_zoom.h"
 #include "ipc/ipc_listener.h"
 #include "ui/base/ime/text_input_mode.h"
@@ skipping 45 matching lines @@
 class OverscrollController;
 class RenderWidgetHostDelegate;
 class RenderWidgetHostViewPort;
 class SyntheticGestureController;
 struct EditCommand;
 
 // This implements the RenderWidgetHost interface that is exposed to
 // embedders of content, and adds things only visible to content.
 class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
                                             public InputRouterClient,
+                                            public InputAckHandler,
                                             public IPC::Listener {
  public:
   // routing_id can be MSG_ROUTING_NONE, in which case the next available
   // routing id is taken from the RenderProcessHost.
   // If this object outlives |delegate|, DetachDelegate() must be called when
   // |delegate| goes away.
   RenderWidgetHostImpl(RenderWidgetHostDelegate* delegate,
                        RenderProcessHost* process,
                        int routing_id,
                        bool hidden);
@@ skipping 414 matching lines @@
 
   base::TimeDelta GetSyntheticGestureMessageInterval() const;
 
   // Sets whether the overscroll controller should be enabled for this page.
   void SetOverscrollControllerEnabled(bool enabled);
 
   // Suppreses future char events until a keydown. See
   // suppress_next_char_events_.
   void SuppressNextCharEvents();
 
+  // Called by RenderWidgetHostView in response to OnSetNeedsFlushInput.
+  void FlushInput();
+
   // Indicates whether the renderer drives the RenderWidgetHosts's size or the
   // other way around.
   bool should_auto_resize() { return should_auto_resize_; }
 
   void ComputeTouchLatency(const ui::LatencyInfo& latency_info);
   void FrameSwapped(const ui::LatencyInfo& latency_info);
   void DidReceiveRendererFrame();
 
   // Returns the ID that uniquely describes this component to the latency
   // subsystem.
@@ skipping 197 matching lines @@
   virtual bool OnSendTouchEvent(
       const TouchEventWithLatencyInfo& touch_event) OVERRIDE;
   virtual bool OnSendGestureEvent(
       const GestureEventWithLatencyInfo& gesture_event) OVERRIDE;
   virtual bool OnSendMouseEventImmediately(
       const MouseEventWithLatencyInfo& mouse_event) OVERRIDE;
   virtual bool OnSendTouchEventImmediately(
       const TouchEventWithLatencyInfo& touch_event) OVERRIDE;
   virtual bool OnSendGestureEventImmediately(
       const GestureEventWithLatencyInfo& gesture_event) OVERRIDE;
+  virtual void SetNeedsFlush() OVERRIDE;
+  virtual void DidFlush() OVERRIDE;
+
+  // InputAckHandler
   virtual void OnKeyboardEventAck(const NativeWebKeyboardEvent& event,
                                   InputEventAckState ack_result) OVERRIDE;
   virtual void OnWheelEventAck(const WebKit::WebMouseWheelEvent& event,
                                InputEventAckState ack_result) OVERRIDE;
   virtual void OnTouchEventAck(const TouchEventWithLatencyInfo& event,
                                InputEventAckState ack_result) OVERRIDE;
   virtual void OnGestureEventAck(const WebKit::WebGestureEvent& event,
                                  InputEventAckState ack_result) OVERRIDE;
   virtual void OnUnexpectedEventAck(bool bad_message) OVERRIDE;
 
   void SimulateTouchGestureWithMouse(const WebKit::WebMouseEvent& mouse_event);
 
   // Called when there is a new auto resize (using a post to avoid a stack
   // which may get in recursive loops).
   void DelayedAutoResized();
 
+  // Creates the proper InputRouter, either Buffered or Immediate.
+  scoped_ptr<InputRouter> CreateInputRouter();
 
   // Our delegate, which wants to know mainly about keyboard events.
   // It will remain non-NULL until DetachDelegate() is called.
   RenderWidgetHostDelegate* delegate_;
 
   // Created during construction but initialized during Init*(). Therefore, it
   // is guaranteed never to be NULL, but its channel may be NULL if the
   // renderer crashed, so you must always check that.
   RenderProcessHost* process_;
 
@@ skipping 161 matching lines @@
   int64 last_input_number_;
 
   BrowserRenderingStats rendering_stats_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_