Touch emulator: allow multiple touch streams.

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>
@@ skipping 12 matching lines @@
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "cc/resources/shared_bitmap.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/renderer_host/event_with_latency_info.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/input/synthetic_gesture.h"
 #include "content/browser/renderer_host/input/touch_emulator_client.h"
+#include "content/browser/renderer_host/input/touch_stream_tracker.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/common/input/synthetic_gesture_packet.h"
 #include "content/common/view_message_enums.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"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 246 matching lines @@
   void ForwardTouchEventWithLatencyInfo(
       const blink::WebTouchEvent& touch_event,
       const ui::LatencyInfo& ui_latency);
   void ForwardMouseEventWithLatencyInfo(
       const blink::WebMouseEvent& mouse_event,
       const ui::LatencyInfo& ui_latency);
   void ForwardWheelEventWithLatencyInfo(
       const blink::WebMouseWheelEvent& wheel_event,
       const ui::LatencyInfo& ui_latency);
 
-  // TouchEmulatorClient overrides.
+  // TouchEmulatorClient implementation.
   virtual void ForwardGestureEvent(
       const blink::WebGestureEvent& gesture_event) OVERRIDE;
-  virtual void ForwardTouchEvent(
+  virtual void ForwardEmulatedTouchEvent(
       const blink::WebTouchEvent& touch_event) OVERRIDE;
   virtual void SetCursor(const WebCursor& cursor) OVERRIDE;
 
   // Queues a synthetic gesture for testing purposes.  Invokes the on_complete
   // callback when the gesture is finished running.
   void QueueSyntheticGesture(
       scoped_ptr<SyntheticGesture> synthetic_gesture,
       const base::Callback<void(SyntheticGesture::Result)>& on_complete);
 
   void CancelUpdateTextDirection();
@@ skipping 376 matching lines @@
   virtual void OnWheelEventAck(const MouseWheelEventWithLatencyInfo& event,
                                InputEventAckState ack_result) OVERRIDE;
   virtual void OnTouchEventAck(const TouchEventWithLatencyInfo& event,
                                InputEventAckState ack_result) OVERRIDE;
   virtual void OnGestureEventAck(const GestureEventWithLatencyInfo& event,
                                  InputEventAckState ack_result) OVERRIDE;
   virtual void OnUnexpectedEventAck(UnexpectedEventAckType type) OVERRIDE;
 
   void OnSyntheticGestureCompleted(SyntheticGesture::Result result);
 
+  void ForwardTouchEventWithLatencyInfoFromStream(
+      const blink::WebTouchEvent& touch_event,
+      const ui::LatencyInfo& ui_latency,
+      TouchStreamTracker::TouchStream stream);
+  void OnTouchEventAckFromStream(
+      const TouchEventWithLatencyInfo& event,
+      InputEventAckState ack_result,
+      TouchStreamTracker::TouchStream stream);
+
   // Called when there is a new auto resize (using a post to avoid a stack
   // which may get in recursive loops).
   void DelayedAutoResized();
 
   void WindowOldSnapshotReachedScreen(int snapshot_id);
 
   void WindowSnapshotReachedScreen(int snapshot_id);
 
   void OnSnapshotDataReceived(int snapshot_id,
                               const unsigned char* png,
@@ skipping 152 matching lines @@
   // then touch events are sent to the renderer. Otherwise, the touch events are
   // not sent to the renderer.
   bool has_touch_handler_;
 
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   scoped_ptr<SyntheticGestureController> synthetic_gesture_controller_;
 
   scoped_ptr<TouchEmulator> touch_emulator_;
 
+  scoped_ptr<TouchStreamTracker> touch_stream_tracker_;
+
   // Receives and handles all input events.
   scoped_ptr<InputRouter> input_router_;
 
   scoped_ptr<TimeoutMonitor> hang_monitor_timeout_;
 
 #if defined(OS_WIN)
   std::list<HWND> dummy_windows_for_activation_;
 #endif
 
   int64 last_input_number_;
 
   int next_browser_snapshot_id_;
   typedef std::map<int,
       base::Callback<void(const unsigned char*, size_t)> > PendingSnapshotMap;
   PendingSnapshotMap pending_browser_snapshots_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_