Generate tap gesture with tap_count = 3 for triple-tap

ui/aura/gestures/gesture_recognizer_unittest.cc

 // 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.
 
 #include "base/memory/scoped_vector.h"
 #include "base/run_loop.h"
 #include "base/string_number_conversions.h"
 #include "base/timer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/env.h"
@@ skipping 2921 matching lines @@
   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(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(
       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()));
@@ skipping 175 matching lines @@
                        tes.LeapForward(40));
   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&move4);
   EXPECT_TRUE(delegate->scroll_update());
   EXPECT_EQ(-1, delegate->scroll_y());
 
   delegate->Reset();
 }
 
 }  // namespace test
 }  // namespace aura