Use times from the initiation of events to determine whether two

successive clicks should be considered a double click.

Also implements triple click for web content in aura.

BUG=None
TEST=aura_unittests::EventTest.*

Review URL: https://chromiumcodereview.appspot.com/9133013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@117907 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 13 insertions, 1 deletions

diff --git a/ui/base/events.h b/ui/base/events.h
index 2128df5..d9cac3d 100644
--- a/ui/base/events.h
+++ b/ui/base/events.h
@@ -14,6 +14,10 @@ namespace gfx {
 class Point;
 }
 
+namespace base {
+class TimeDelta;
+}
+
 namespace ui {
 
 // Event types. (prefixed because of a conflict with windows headers)
@@ -64,7 +68,8 @@ enum EventFlags {
 // Flags specific to mouse events
 enum MouseEventFlags {
   EF_IS_DOUBLE_CLICK    = 1 << 16,
-  EF_IS_NON_CLIENT      = 1 << 17
+  EF_IS_TRIPLE_CLICK    = 1 << 17,
+  EF_IS_NON_CLIENT      = 1 << 18
 };
 
 enum TouchStatus {
@@ -100,6 +105,9 @@ UI_EXPORT EventType EventTypeFromNative(const base::NativeEvent& native_event);
 // Get the EventFlags from a native event.
 UI_EXPORT int EventFlagsFromNative(const base::NativeEvent& native_event);
 
+UI_EXPORT base::TimeDelta EventTimeFromNative(
+    const base::NativeEvent& native_event);
+
 // Get the location from a native event.  The coordinate system of the resultant
 // |Point| has the origin at top-left of the "root window".  The nature of
 // this "root window" and how it maps to platform-specific drawing surfaces is
@@ -144,6 +152,10 @@ UI_EXPORT bool GetScrollOffsets(const base::NativeEvent& native_event,
                                 float* x_offset,
                                 float* y_offset);
 
+UI_EXPORT bool GetGestureTimes(const base::NativeEvent& native_event,
+                               double* start_time,
+                               double* end_time);
+
 // Creates and returns no-op event.
 UI_EXPORT base::NativeEvent CreateNoopEvent();