Added entry points to view/View to dispatch and process TouchEvents.

This change is part of a series of changes to bring TouchEvent
processing to views.

BUG=na
TESTED=compiled with and without touchui

Review URL: http://codereview.chromium.org/3192002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@58823 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 14 insertions, 1 deletions

diff --git a/views/view.h b/views/view.h
index 293c5c7..2504667 100644
--- a/views/view.h
+++ b/views/view.h
@@ -705,6 +705,12 @@ class View : public AcceleratorTarget {
   // Default implementation does nothing. Override as needed.
   virtual void OnMouseExited(const MouseEvent& event);
 
+#if defined(TOUCH_UI)
+  // This method is invoked for each touch event. Default implementation
+  // does nothing. Override as needed.
+  virtual bool OnTouchEvent(const TouchEvent& event);
+#endif
+
   // Set the MouseHandler for a drag session.
   //
   // A drag session is a stream of mouse events starting
@@ -712,7 +718,7 @@ class View : public AcceleratorTarget {
   // events and finishing with a MouseReleased event.
   //
   // This method should be only invoked while processing a
-  // MouseDragged or MouseReleased event.
+  // MouseDragged or MousePressed event.
   //
   // All further mouse dragged and mouse up events will be sent
   // the MouseHandler, even if it is reparented to another window.
@@ -1160,6 +1166,13 @@ class View : public AcceleratorTarget {
   bool ProcessMouseDragged(const MouseEvent& e, DragInfo* drop_info);
   void ProcessMouseReleased(const MouseEvent& e, bool canceled);
 
+#if defined(TOUCH_UI)
+  // RootView will invoke this with incoming TouchEvents. Returns the
+  // the result of OnTouchEvent: true if the event was handled by the
+  // callee.
+  bool ProcessTouchEvent(const TouchEvent& e);
+#endif
+
   // Starts a drag and drop operation originating from this view. This invokes
   // WriteDragData to write the data and GetDragOperations to determine the
   // supported drag operations. When done, OnDragDone is invoked.