Generate tap gesture with tap_count = 3 for triple-tap

ui/aura/gestures/gesture_recognizer_unittest.cc

Index: ui/aura/gestures/gesture_recognizer_unittest.cc
diff --git a/ui/aura/gestures/gesture_recognizer_unittest.cc b/ui/aura/gestures/gesture_recognizer_unittest.cc
index 02de6385673292262e8ff6b9062ad02b3ed2413c..2477638989fac6ef30f42d494810c146084f1d6f 100644
--- a/ui/aura/gestures/gesture_recognizer_unittest.cc
+++ b/ui/aura/gestures/gesture_recognizer_unittest.cc
@@ -2939,6 +2939,56 @@ TEST_F(GestureRecognizerTest, GestureEventDoubleTap) {
   EXPECT_EQ(2, delegate->tap_count());
 }
 
+// Check that appropriate touch events generate triple tap gesture events.
+TEST_F(GestureRecognizerTest, GestureEventTripleTap) {
+  scoped_ptr<GestureEventConsumeDelegate> delegate(
+      new GestureEventConsumeDelegate());
+  const int kWindowWidth = 123;
+  const int kWindowHeight = 45;
+  const int kTouchId = 2;
+  gfx::Rect bounds(100, 200, kWindowWidth, kWindowHeight);
+  scoped_ptr<aura::Window> window(CreateTestWindowWithDelegate(
+      delegate.get(), -1234, bounds, root_window()));
+  TimedEvents tes;
+
+  // First tap (tested in GestureEventTap)
+  ui::TouchEvent press1(ui::ET_TOUCH_PRESSED, gfx::Point(104, 201),
+                        kTouchId, tes.Now());
+  root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&press1);
+  ui::TouchEvent release1(ui::ET_TOUCH_RELEASED, gfx::Point(104, 201),
+                          kTouchId, tes.LeapForward(50));
+  root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&release1);
+  delegate->Reset();
+
+  // Second tap (tested in GestureEventDoubleTap)
+  ui::TouchEvent press2(ui::ET_TOUCH_PRESSED, gfx::Point(101, 203),
+                        kTouchId, tes.LeapForward(200));
+  root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&press2);
+  ui::TouchEvent release2(ui::ET_TOUCH_RELEASED, gfx::Point(102, 206),
+                          kTouchId, tes.LeapForward(50));
+  root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&release2);

[sadrul, 2013/05/28 17:48:46]

check tap_count here and after the first tap

[Yufeng Shen (Slow to review), 2013/05/28 19:31:44]

Done.

+
+  // Third tap
+  ui::TouchEvent press3(ui::ET_TOUCH_PRESSED, gfx::Point(102, 206),
+                        kTouchId, tes.LeapForward(200));
+  root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&press3);
+  ui::TouchEvent release3(ui::ET_TOUCH_RELEASED, gfx::Point(102, 206),
+                          kTouchId, tes.LeapForward(50));
+  root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&release3);
+
+
+  EXPECT_TRUE(delegate->tap());
+  EXPECT_TRUE(delegate->tap_down());
+  EXPECT_FALSE(delegate->tap_cancel());
+  EXPECT_TRUE(delegate->begin());
+  EXPECT_TRUE(delegate->end());
+  EXPECT_FALSE(delegate->scroll_begin());
+  EXPECT_FALSE(delegate->scroll_update());
+  EXPECT_FALSE(delegate->scroll_end());
+
+  EXPECT_EQ(3, delegate->tap_count());
+}
+
 // Check that we don't get a double tap when the two taps are far apart.
 TEST_F(GestureRecognizerTest, TwoTapsFarApart) {
   scoped_ptr<GestureEventConsumeDelegate> delegate(