Initial views touchui Gesture Recognizer support

ui/views/view.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 UI_VIEWS_VIEW_H_
 #define UI_VIEWS_VIEW_H_
 #pragma once
 
 #include <algorithm>
 #include <map>
@@ skipping 564 matching lines @@
 
   // This method is invoked when the mouse exits this control
   // The provided event location is always (0, 0)
   // Default implementation does nothing. Override as needed.
   virtual void OnMouseExited(const MouseEvent& event);
 
   // This method is invoked for each touch event. Default implementation
   // does nothing. Override as needed.
   virtual ui::TouchStatus OnTouchEvent(const TouchEvent& event);
 
+  // This method is invoked for each GestureEvent recognized from GestureManager
+  // Default implementation does nothing. Override as needed.
+  virtual ui::GestureStatus OnGestureEvent(const GestureEvent& event);
+
   // Set the MouseHandler for a drag session.
   //
   // A drag session is a stream of mouse events starting
   // with a MousePressed event, followed by several MouseDragged
   // events and finishing with a MouseReleased event.
   //
   // This method should be only invoked while processing a
   // MouseDragged or MousePressed event.
   //
   // All further mouse dragged and mouse up events will be sent
@@ skipping 655 matching lines @@
   // RootView invokes these. These in turn invoke the appropriate OnMouseXXX
   // method. If a drag is detected, DoDrag is invoked.
   bool ProcessMousePressed(const MouseEvent& event, DragInfo* drop_info);
   bool ProcessMouseDragged(const MouseEvent& event, DragInfo* drop_info);
   void ProcessMouseReleased(const MouseEvent& event);
 
   // RootView will invoke this with incoming TouchEvents. Returns the
   // the result of OnTouchEvent.
   ui::TouchStatus ProcessTouchEvent(const TouchEvent& event);
 
+  // GestureManager will invoke this with incoming GestureEvents. Returns the
+  // the result of OnGestureEvent.
+  ui::GestureStatus ProcessGestureEvent(const GestureEvent& event);
+
   // Accelerators --------------------------------------------------------------
 
   // Registers this view's keyboard accelerators that are not registered to
   // FocusManager yet, if possible.
   void RegisterPendingAccelerators();
 
   // Unregisters all the keyboard accelerators associated with this view.
   // |leave_data_intact| if true does not remove data from accelerators_ array,
   // so it could be re-registered with other focus manager
   void UnregisterAccelerators(bool leave_data_intact);
@@ skipping 159 matching lines @@
   base::win::ScopedComPtr<NativeViewAccessibilityWin>
       native_view_accessibility_win_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEW_H_