Eager Gesture Recognizer (WIP)

ui/aura/gestures/eager_gesture_recognition_aura_unittest.cc

Index: ui/aura/gestures/eager_gesture_recognition_aura_unittest.cc
diff --git a/ui/aura/gestures/eager_gesture_recognition_aura_unittest.cc b/ui/aura/gestures/eager_gesture_recognition_aura_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..76f71a678167128a31a4b47fe9c2382cfb94b0b9
--- /dev/null
+++ b/ui/aura/gestures/eager_gesture_recognition_aura_unittest.cc
@@ -0,0 +1,282 @@
+// Copyright 2013 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/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest-spi.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/aura/env.h"
+#include "ui/events/event.h"
+#include "ui/events/gestures/gesture_configuration.h"
+#include "ui/events/gestures/gesture_sequence.h"
+#include "ui/events/gestures/test/eager_gesture_recognition_test_base.h"
+#include "ui/events/gestures/touch_point_state.h"
+
+using testing::ElementsAre;
+
+namespace aura {
+namespace test {
+
+namespace {
+
+typedef ui::GestureRecognizer::Gestures Gestures;
+
+}  // namespace
+
+class EagerGestureRecognitionAuraTest :
+      public ui::test::EagerGestureRecognitionTestBase,
+      public ui::GestureEventQueueDelegate {
+ public:
+  EagerGestureRecognitionAuraTest()
+      : wait_until_event_(ui::ET_UNKNOWN) {
+  }
+
+  virtual void SetUp() OVERRIDE {
+    testing::Test::SetUp();
+    Env::CreateInstance();
+    // TODO - this should probably be refactored out of aura_test_base.cc and
+    // here.
+    ui::GestureConfiguration::set_long_press_time_in_seconds(0.01);
+    ui::GestureConfiguration::set_show_press_delay_in_ms(5);
+    geq_.reset(new ui::GestureEventQueue(this));
+    gesture_sequence_.reset(new ui::GestureSequence(geq_.get()));
+  }
+
+  virtual void TearDown() OVERRIDE {
+    RunAllPendingInMessageLoop();
+    Env::DeleteInstance();
+    testing::Test::TearDown();
+  }
+
+  void SendTouch(const ui::TouchEvent& event) {
+    geq_->OnTouchEvent(event);
+    scoped_ptr<Gestures> gestures;
+    gestures.reset(gesture_sequence_->ProcessTouchEventForGesture(event));
+    for (Gestures::iterator it = gestures->begin();
+         it != gestures->end();
+         ++it) {
+      geq_->QueueGestureEvent(*it, ui::TouchPointState::WAIT_FOR_ACK);
+    }
+    // Ownership has been transferred to the geq.
+    gestures->weak_clear();
+  }
+
+  void SendAck(const ui::TouchEvent& event,
+               ui::EventResult result) {
+    geq_->OnTouchEventAck(event, result);
+  }
+
+  void FakeTimerFiring() {
+    geq_->TimerFired();
+  }
+
+  virtual void DispatchGestureEvent(ui::GestureEvent* event) OVERRIDE {
+    dispatched_events_.push_back(event->type());
+    if (wait_until_event_ == event->type() && run_loop_) {
+      run_loop_->Quit();
+      wait_until_event_ = ui::ET_UNKNOWN;
+    }
+  }
+
+  std::vector<ui::EventType> GetAndResetDispatchedEvents() {
+    std::vector<ui::EventType> tmp;
+    dispatched_events_.swap(tmp);
+    return tmp;
+  }
+
+  void RunAllPendingInMessageLoop() {
+    ui_message_loop_.RunUntilIdle();
+  }
+
+  void WaitUntilReceivedGesture(ui::EventType type) {
+    wait_until_event_ = type;
+    run_loop_.reset(new base::RunLoop(
+        Env::GetInstance()->GetDispatcher()));
+    run_loop_->Run();
+  }
+
+ private:
+  scoped_ptr<ui::GestureSequence> gesture_sequence_;
+  scoped_ptr<ui::GestureEventQueue> geq_;
+  std::vector<ui::EventType> dispatched_events_;
+
+  base::MessageLoopForUI ui_message_loop_;
+
+  scoped_ptr<base::RunLoop> run_loop_;
+  ui::EventType wait_until_event_;
+};
+
+TEST_F(EagerGestureRecognitionAuraTest, BasicPress) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, BasicTap) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+
+  SendTouch(Release(0));
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre());
+  SendAck(Release(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TAP, ui::ET_GESTURE_END));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, DISABLED_ConsumedRelease) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+
+  SendTouch(Release(0));
+  EXPECT_THAT(GetAndResetDispatchedEvents(), ElementsAre());
+  SendAck(Release(0), ui::ER_CONSUMED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TAP_CANCEL, ui::ET_GESTURE_END));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, TwoFingerTap) {
+  SendTouch(Press(0));
+  EXPECT_THAT(GetAndResetDispatchedEvents(), ElementsAre());
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+
+  SendTouch(Press(1));
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre());
+
+  SendAck(Press(1), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TAP_CANCEL, ui::ET_GESTURE_BEGIN));
+
+  SendTouch(Release(1));
+  SendAck(Release(1), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TWO_FINGER_TAP, ui::ET_GESTURE_END));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, TwoFingerConsumed) {
+  SendTouch(Press(0));
+  EXPECT_THAT(GetAndResetDispatchedEvents(), ElementsAre());
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+
+  SendTouch(Press(1));
+  EXPECT_THAT(GetAndResetDispatchedEvents(), ElementsAre());
+  SendAck(Press(1), ui::ER_CONSUMED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre());
+
+  SendTouch(Release(1));
+  SendAck(Release(1), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre());
+
+  SendTouch(Press(1));
+  EXPECT_THAT(GetAndResetDispatchedEvents(), ElementsAre());
+  SendAck(Press(1), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_PINCH_BEGIN));
+
+  SendTouch(Release(1));
+  SendAck(Release(1), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_PINCH_END, ui::ET_GESTURE_END));
+}
+
+
+TEST_F(EagerGestureRecognitionAuraTest, SimpleScroll) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+  SendTouch(Move(0));
+  SendAck(Move(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TAP_CANCEL,
+                          ui::ET_GESTURE_SCROLL_BEGIN,
+                          ui::ET_GESTURE_SCROLL_UPDATE));
+}
+
+// Ensures that if a one finger scroll has a move consumed, you can't transition
+// into a pinch.
+TEST_F(EagerGestureRecognitionAuraTest, ConsumedScrollToPinch) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+
+  SendTouch(Move(0));
+  SendAck(Move(0), ui::ER_CONSUMED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TAP_CANCEL));
+
+  SendTouch(Press(1));
+  SendAck(Press(1), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, SuccessfulLongPress) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+  WaitUntilReceivedGesture(ui::ET_GESTURE_SHOW_PRESS);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_SHOW_PRESS));
+  WaitUntilReceivedGesture(ui::ET_GESTURE_LONG_PRESS);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_LONG_PRESS));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, TimedOutLongPress) {
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+  FakeTimerFiring();
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_SHOW_PRESS));
+
+  SendTouch(Release(0));
+  SendAck(Release(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_TAP, ui::ET_GESTURE_END));
+
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+}
+
+TEST_F(EagerGestureRecognitionAuraTest, ConsumedLongPress) {
+  SendTouch(Press(0));
+  FakeTimerFiring();
+  FakeTimerFiring();
+  SendAck(Press(0), ui::ER_CONSUMED);
+  SendTouch(Release(0));
+  SendAck(Release(0), ui::ER_UNHANDLED);
+
+  EXPECT_THAT(GetAndResetDispatchedEvents(), ElementsAre());
+
+  SendTouch(Press(0));
+  SendAck(Press(0), ui::ER_UNHANDLED);
+
+  EXPECT_THAT(GetAndResetDispatchedEvents(),
+              ElementsAre(ui::ET_GESTURE_BEGIN, ui::ET_GESTURE_TAP_DOWN));
+}
+
+}  // namespace test
+}  // namespace aura