src/content/browser/web_contents/aura/window_slider_unittest.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/web_contents/aura/window_slider.h"
   6
   7 #include "base/bind.h"
   8 #include "base/time/time.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "ui/aura/test/aura_test_base.h"
  11 #include "ui/aura/test/test_window_delegate.h"
  12 #include "ui/aura/window.h"
  13 #include "ui/base/hit_test.h"
  14 #include "ui/compositor/scoped_animation_duration_scale_mode.h"
  15 #include "ui/compositor/scoped_layer_animation_settings.h"
  16 #include "ui/compositor/test/layer_animator_test_controller.h"
  17 #include "ui/events/event_processor.h"
  18 #include "ui/events/event_utils.h"
  19 #include "ui/events/test/event_generator.h"
  20 #include "ui/gfx/frame_time.h"
  21
  22 namespace content {
  23
  24 void DispatchEventDuringScrollCallback(ui::EventProcessor* dispatcher,
  25                                        ui::Event* event,
  26                                        ui::EventType type,
  27                                        const gfx::Vector2dF& delta) {
  28   if (type != ui::ET_GESTURE_SCROLL_UPDATE)
  29     return;
  30   ui::EventDispatchDetails details = dispatcher->OnEventFromSource(event);
  31   CHECK(!details.dispatcher_destroyed);
  32 }
  33
  34 void ChangeSliderOwnerDuringScrollCallback(scoped_ptr<aura::Window>* window,
  35                                            WindowSlider* slider,
  36                                            ui::EventType type,
  37                                            const gfx::Vector2dF& delta) {
  38   if (type != ui::ET_GESTURE_SCROLL_UPDATE)
  39     return;
  40   aura::Window* new_window = new aura::Window(NULL);
  41   new_window->Init(aura::WINDOW_LAYER_TEXTURED);
  42   new_window->Show();
  43   slider->ChangeOwner(new_window);
  44   (*window)->parent()->AddChild(new_window);
  45   window->reset(new_window);
  46 }
  47
  48 void ConfirmSlideDuringScrollCallback(WindowSlider* slider,
  49                                       ui::EventType type,
  50                                       const gfx::Vector2dF& delta) {
  51   static float total_delta_x = 0;
  52   if (type == ui::ET_GESTURE_SCROLL_BEGIN)
  53     total_delta_x = 0;
  54
  55   if (type == ui::ET_GESTURE_SCROLL_UPDATE) {
  56     total_delta_x += delta.x();
  57     if (total_delta_x >= 70)
  58       EXPECT_TRUE(slider->IsSlideInProgress());
  59   } else {
  60     EXPECT_FALSE(slider->IsSlideInProgress());
  61   }
  62 }
  63
  64 void ConfirmNoSlideDuringScrollCallback(WindowSlider* slider,
  65                                         ui::EventType type,
  66                                         const gfx::Vector2dF& delta) {
  67   EXPECT_FALSE(slider->IsSlideInProgress());
  68 }
  69
  70 // The window delegate does not receive any events.
  71 class NoEventWindowDelegate : public aura::test::TestWindowDelegate {
  72  public:
  73   NoEventWindowDelegate() {
  74   }
  75   virtual ~NoEventWindowDelegate() {}
  76
  77  private:
  78   // Overridden from aura::WindowDelegate:
  79   virtual bool HasHitTestMask() const OVERRIDE { return true; }
  80
  81   DISALLOW_COPY_AND_ASSIGN(NoEventWindowDelegate);
  82 };
  83
  84 class WindowSliderDelegateTest : public WindowSlider::Delegate {
  85  public:
  86   WindowSliderDelegateTest()
  87       : can_create_layer_(true),
  88         created_back_layer_(false),
  89         created_front_layer_(false),
  90         slide_completing_(false),
  91         slide_completed_(false),
  92         slide_aborted_(false),
  93         slider_destroyed_(false) {
  94   }
  95   virtual ~WindowSliderDelegateTest() {
  96     // Make sure slide_completed() gets called if slide_completing() was called.
  97     CHECK(!slide_completing_ || slide_completed_);
  98   }
  99
 100   void Reset() {
 101     can_create_layer_ = true;
 102     created_back_layer_ = false;
 103     created_front_layer_ = false;
 104     slide_completing_ = false;
 105     slide_completed_ = false;
 106     slide_aborted_ = false;
 107     slider_destroyed_ = false;
 108   }
 109
 110   void SetCanCreateLayer(bool can_create_layer) {
 111     can_create_layer_ = can_create_layer;
 112   }
 113
 114   bool created_back_layer() const { return created_back_layer_; }
 115   bool created_front_layer() const { return created_front_layer_; }
 116   bool slide_completing() const { return slide_completing_; }
 117   bool slide_completed() const { return slide_completed_; }
 118   bool slide_aborted() const { return slide_aborted_; }
 119   bool slider_destroyed() const { return slider_destroyed_; }
 120
 121  protected:
 122   ui::Layer* CreateLayerForTest() {
 123     CHECK(can_create_layer_);
 124     ui::Layer* layer = new ui::Layer(ui::LAYER_SOLID_COLOR);
 125     layer->SetColor(SK_ColorRED);
 126     return layer;
 127   }
 128
 129   // Overridden from WindowSlider::Delegate:
 130   virtual ui::Layer* CreateBackLayer() OVERRIDE {
 131     if (!can_create_layer_)
 132       return NULL;
 133     created_back_layer_ = true;
 134     return CreateLayerForTest();
 135   }
 136
 137   virtual ui::Layer* CreateFrontLayer() OVERRIDE {
 138     if (!can_create_layer_)
 139       return NULL;
 140     created_front_layer_ = true;
 141     return CreateLayerForTest();
 142   }
 143
 144   virtual void OnWindowSlideCompleted(scoped_ptr<ui::Layer> layer) OVERRIDE {
 145     slide_completed_ = true;
 146   }
 147
 148   virtual void OnWindowSlideCompleting() OVERRIDE {
 149     slide_completing_ = true;
 150   }
 151
 152   virtual void OnWindowSlideAborted() OVERRIDE {
 153     slide_aborted_ = true;
 154   }
 155
 156   virtual void OnWindowSliderDestroyed() OVERRIDE {
 157     slider_destroyed_ = true;
 158   }
 159
 160  private:
 161   bool can_create_layer_;
 162   bool created_back_layer_;
 163   bool created_front_layer_;
 164   bool slide_completing_;
 165   bool slide_completed_;
 166   bool slide_aborted_;
 167   bool slider_destroyed_;
 168
 169   DISALLOW_COPY_AND_ASSIGN(WindowSliderDelegateTest);
 170 };
 171
 172 // This delegate destroys the owner window when the slider is destroyed.
 173 class WindowSliderDeleteOwnerOnDestroy : public WindowSliderDelegateTest {
 174  public:
 175   explicit WindowSliderDeleteOwnerOnDestroy(aura::Window* owner)
 176       : owner_(owner) {
 177   }
 178   virtual ~WindowSliderDeleteOwnerOnDestroy() {}
 179
 180  private:
 181   // Overridden from WindowSlider::Delegate:
 182   virtual void OnWindowSliderDestroyed() OVERRIDE {
 183     WindowSliderDelegateTest::OnWindowSliderDestroyed();
 184     delete owner_;
 185   }
 186
 187   aura::Window* owner_;
 188   DISALLOW_COPY_AND_ASSIGN(WindowSliderDeleteOwnerOnDestroy);
 189 };
 190
 191 // This delegate destroyes the owner window when a slide is completed.
 192 class WindowSliderDeleteOwnerOnComplete : public WindowSliderDelegateTest {
 193  public:
 194   explicit WindowSliderDeleteOwnerOnComplete(aura::Window* owner)
 195       : owner_(owner) {
 196   }
 197   virtual ~WindowSliderDeleteOwnerOnComplete() {}
 198
 199  private:
 200   // Overridden from WindowSlider::Delegate:
 201   virtual void OnWindowSlideCompleted(scoped_ptr<ui::Layer> layer) OVERRIDE {
 202     WindowSliderDelegateTest::OnWindowSlideCompleted(layer.Pass());
 203     delete owner_;
 204   }
 205
 206   aura::Window* owner_;
 207   DISALLOW_COPY_AND_ASSIGN(WindowSliderDeleteOwnerOnComplete);
 208 };
 209
 210 typedef aura::test::AuraTestBase WindowSliderTest;
 211
 212 TEST_F(WindowSliderTest, WindowSlideUsingGesture) {
 213   scoped_ptr<aura::Window> window(CreateNormalWindow(0, root_window(), NULL));
 214   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 215   WindowSliderDelegateTest slider_delegate;
 216
 217   ui::test::EventGenerator generator(root_window());
 218
 219   // Generate a horizontal overscroll.
 220   WindowSlider* slider =
 221       new WindowSlider(&slider_delegate, root_window(), window.get());
 222   generator.GestureScrollSequenceWithCallback(
 223       gfx::Point(10, 10),
 224       gfx::Point(180, 10),
 225       base::TimeDelta::FromMilliseconds(10),
 226       10,
 227       base::Bind(&ConfirmSlideDuringScrollCallback, slider));
 228   EXPECT_TRUE(slider_delegate.created_back_layer());
 229   EXPECT_TRUE(slider_delegate.slide_completing());
 230   EXPECT_TRUE(slider_delegate.slide_completed());
 231   EXPECT_FALSE(slider_delegate.created_front_layer());
 232   EXPECT_FALSE(slider_delegate.slide_aborted());
 233   EXPECT_FALSE(slider_delegate.slider_destroyed());
 234   EXPECT_FALSE(slider->IsSlideInProgress());
 235   slider_delegate.Reset();
 236   window->SetTransform(gfx::Transform());
 237
 238   // Generate a horizontal overscroll in the reverse direction.
 239   generator.GestureScrollSequenceWithCallback(
 240       gfx::Point(180, 10),
 241       gfx::Point(10, 10),
 242       base::TimeDelta::FromMilliseconds(10),
 243       10,
 244       base::Bind(&ConfirmSlideDuringScrollCallback, slider));
 245   EXPECT_TRUE(slider_delegate.created_front_layer());
 246   EXPECT_TRUE(slider_delegate.slide_completing());
 247   EXPECT_TRUE(slider_delegate.slide_completed());
 248   EXPECT_FALSE(slider_delegate.created_back_layer());
 249   EXPECT_FALSE(slider_delegate.slide_aborted());
 250   EXPECT_FALSE(slider_delegate.slider_destroyed());
 251   EXPECT_FALSE(slider->IsSlideInProgress());
 252   slider_delegate.Reset();
 253
 254   // Generate a vertical overscroll.
 255   generator.GestureScrollSequenceWithCallback(
 256       gfx::Point(10, 10),
 257       gfx::Point(10, 80),
 258       base::TimeDelta::FromMilliseconds(10),
 259       10,
 260       base::Bind(&ConfirmNoSlideDuringScrollCallback, slider));
 261   EXPECT_FALSE(slider_delegate.created_back_layer());
 262   EXPECT_FALSE(slider_delegate.slide_completing());
 263   EXPECT_FALSE(slider_delegate.slide_completed());
 264   EXPECT_FALSE(slider_delegate.created_front_layer());
 265   EXPECT_FALSE(slider_delegate.slide_aborted());
 266   EXPECT_FALSE(slider->IsSlideInProgress());
 267   slider_delegate.Reset();
 268
 269   // Generate a horizontal scroll that starts overscroll, but doesn't scroll
 270   // enough to complete it.
 271   generator.GestureScrollSequenceWithCallback(
 272       gfx::Point(10, 10),
 273       gfx::Point(80, 10),
 274       base::TimeDelta::FromMilliseconds(10),
 275       10,
 276       base::Bind(&ConfirmSlideDuringScrollCallback, slider));
 277   EXPECT_TRUE(slider_delegate.created_back_layer());
 278   EXPECT_TRUE(slider_delegate.slide_aborted());
 279   EXPECT_FALSE(slider_delegate.created_front_layer());
 280   EXPECT_FALSE(slider_delegate.slide_completing());
 281   EXPECT_FALSE(slider_delegate.slide_completed());
 282   EXPECT_FALSE(slider_delegate.slider_destroyed());
 283   EXPECT_FALSE(slider->IsSlideInProgress());
 284   slider_delegate.Reset();
 285
 286   // Destroy the window. This should destroy the slider.
 287   window.reset();
 288   EXPECT_TRUE(slider_delegate.slider_destroyed());
 289 }
 290
 291 // Tests that the window slide is interrupted when a different type of event
 292 // happens.
 293 TEST_F(WindowSliderTest, WindowSlideIsCancelledOnEvent) {
 294   scoped_ptr<aura::Window> window(CreateNormalWindow(0, root_window(), NULL));
 295   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 296   WindowSliderDelegateTest slider_delegate;
 297
 298   ui::Event* events[] = {
 299     new ui::MouseEvent(ui::ET_MOUSE_MOVED,
 300                        gfx::Point(55, 10),
 301                        gfx::Point(55, 10),
 302                        0, 0),
 303     new ui::KeyEvent('a', ui::VKEY_A, ui::EF_NONE),
 304     NULL
 305   };
 306
 307   new WindowSlider(&slider_delegate, root_window(), window.get());
 308   for (int i = 0; events[i]; ++i) {
 309     // Generate a horizontal overscroll.
 310     ui::test::EventGenerator generator(root_window());
 311     generator.GestureScrollSequenceWithCallback(
 312         gfx::Point(10, 10),
 313         gfx::Point(80, 10),
 314         base::TimeDelta::FromMilliseconds(10),
 315         1,
 316         base::Bind(&DispatchEventDuringScrollCallback,
 317                    root_window()->GetHost()->event_processor(),
 318                    base::Owned(events[i])));
 319     EXPECT_TRUE(slider_delegate.created_back_layer());
 320     EXPECT_TRUE(slider_delegate.slide_aborted());
 321     EXPECT_FALSE(slider_delegate.created_front_layer());
 322     EXPECT_FALSE(slider_delegate.slide_completing());
 323     EXPECT_FALSE(slider_delegate.slide_completed());
 324     EXPECT_FALSE(slider_delegate.slider_destroyed());
 325     slider_delegate.Reset();
 326   }
 327   window.reset();
 328   EXPECT_TRUE(slider_delegate.slider_destroyed());
 329 }
 330
 331 // Tests that the window slide can continue after it is interrupted by another
 332 // event if the user continues scrolling.
 333 TEST_F(WindowSliderTest, WindowSlideInterruptedThenContinues) {
 334   scoped_ptr<aura::Window> window(CreateNormalWindow(0, root_window(), NULL));
 335   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 336   WindowSliderDelegateTest slider_delegate;
 337
 338   ui::ScopedAnimationDurationScaleMode normal_duration_(
 339       ui::ScopedAnimationDurationScaleMode::NORMAL_DURATION);
 340   ui::LayerAnimator* animator = window->layer()->GetAnimator();
 341   animator->set_disable_timer_for_test(true);
 342   ui::LayerAnimatorTestController test_controller(animator);
 343
 344   WindowSlider* slider =
 345       new WindowSlider(&slider_delegate, root_window(), window.get());
 346
 347   ui::MouseEvent interrupt_event(ui::ET_MOUSE_MOVED,
 348                                  gfx::Point(55, 10),
 349                                  gfx::Point(55, 10),
 350                                  0, 0);
 351
 352   ui::test::EventGenerator generator(root_window());
 353
 354   // Start the scroll sequence. Scroll forward so that |window|'s layer is the
 355   // one animating.
 356   const int kTouchId = 5;
 357   ui::TouchEvent press(ui::ET_TOUCH_PRESSED,
 358                        gfx::Point(10, 10),
 359                        kTouchId,
 360                        ui::EventTimeForNow());
 361   generator.Dispatch(&press);
 362
 363   // First scroll event of the sequence.
 364   ui::TouchEvent move1(ui::ET_TOUCH_MOVED,
 365                        gfx::Point(100, 10),
 366                        kTouchId,
 367                        ui::EventTimeForNow());
 368   generator.Dispatch(&move1);
 369   EXPECT_TRUE(slider->IsSlideInProgress());
 370   EXPECT_FALSE(animator->is_animating());
 371   // Dispatch the event after the first scroll and confirm it interrupts the
 372   // scroll and starts  the "reset slide" animation.
 373   generator.Dispatch(&interrupt_event);
 374   EXPECT_TRUE(slider->IsSlideInProgress());
 375   EXPECT_TRUE(animator->is_animating());
 376   EXPECT_TRUE(slider_delegate.created_back_layer());
 377   // slide_aborted() should be false because the 'reset slide' animation
 378   // hasn't completed yet.
 379   EXPECT_FALSE(slider_delegate.slide_aborted());
 380   EXPECT_FALSE(slider_delegate.created_front_layer());
 381   EXPECT_FALSE(slider_delegate.slide_completing());
 382   EXPECT_FALSE(slider_delegate.slide_completed());
 383   EXPECT_FALSE(slider_delegate.slider_destroyed());
 384   slider_delegate.Reset();
 385
 386   // Second scroll event of the sequence.
 387   ui::TouchEvent move2(ui::ET_TOUCH_MOVED,
 388                        gfx::Point(200, 10),
 389                        kTouchId,
 390                        ui::EventTimeForNow());
 391   generator.Dispatch(&move2);
 392   // The second scroll should instantly cause the animation to complete.
 393   EXPECT_FALSE(animator->is_animating());
 394   EXPECT_FALSE(slider_delegate.created_back_layer());
 395   // The ResetScroll() animation was completed, so now slide_aborted()
 396   // should be true.
 397   EXPECT_TRUE(slider_delegate.slide_aborted());
 398
 399   // Third scroll event of the sequence.
 400   ui::TouchEvent move3(ui::ET_TOUCH_MOVED,
 401                        gfx::Point(300, 10),
 402                        kTouchId,
 403                        ui::EventTimeForNow());
 404   generator.Dispatch(&move3);
 405   // The third scroll should re-start the sliding.
 406   EXPECT_TRUE(slider->IsSlideInProgress());
 407   EXPECT_TRUE(slider_delegate.created_back_layer());
 408
 409   // Generate the release event, finishing the scroll sequence.
 410   ui::TouchEvent release(ui::ET_TOUCH_RELEASED,
 411                          gfx::Point(300, 10),
 412                          kTouchId,
 413                          ui::EventTimeForNow());
 414   generator.Dispatch(&release);
 415   // When the scroll gesture ends, the slide animation should start.
 416   EXPECT_TRUE(slider->IsSlideInProgress());
 417   EXPECT_TRUE(animator->is_animating());
 418   EXPECT_TRUE(slider_delegate.slide_completing());
 419   EXPECT_FALSE(slider_delegate.created_front_layer());
 420   EXPECT_FALSE(slider_delegate.slide_completed());
 421   EXPECT_FALSE(slider_delegate.slider_destroyed());
 422
 423   // Progress the animator to complete the slide animation.
 424   ui::ScopedLayerAnimationSettings settings(animator);
 425   base::TimeDelta duration = settings.GetTransitionDuration();
 426   test_controller.StartThreadedAnimationsIfNeeded();
 427   animator->Step(gfx::FrameTime::Now() + duration);
 428
 429   EXPECT_TRUE(slider_delegate.slide_completed());
 430   EXPECT_FALSE(slider_delegate.slider_destroyed());
 431
 432   window.reset();
 433   EXPECT_TRUE(slider_delegate.slider_destroyed());
 434 }
 435
 436 // Tests that the slide works correctly when the owner of the window changes
 437 // during the duration of the slide.
 438 TEST_F(WindowSliderTest, OwnerWindowChangesDuringWindowSlide) {
 439   scoped_ptr<aura::Window> parent(CreateNormalWindow(0, root_window(), NULL));
 440
 441   NoEventWindowDelegate window_delegate;
 442   window_delegate.set_window_component(HTNOWHERE);
 443   scoped_ptr<aura::Window> window(CreateNormalWindow(1, parent.get(),
 444                                                      &window_delegate));
 445
 446   WindowSliderDelegateTest slider_delegate;
 447   scoped_ptr<WindowSlider> slider(
 448       new WindowSlider(&slider_delegate, parent.get(), window.get()));
 449
 450   // Generate a horizontal scroll, and change the owner in the middle of the
 451   // scroll.
 452   ui::test::EventGenerator generator(root_window());
 453   aura::Window* old_window = window.get();
 454   generator.GestureScrollSequenceWithCallback(
 455       gfx::Point(10, 10),
 456       gfx::Point(80, 10),
 457       base::TimeDelta::FromMilliseconds(10),
 458       1,
 459       base::Bind(&ChangeSliderOwnerDuringScrollCallback,
 460                  base::Unretained(&window),
 461                  slider.get()));
 462   aura::Window* new_window = window.get();
 463   EXPECT_NE(old_window, new_window);
 464
 465   EXPECT_TRUE(slider_delegate.created_back_layer());
 466   EXPECT_TRUE(slider_delegate.slide_completing());
 467   EXPECT_TRUE(slider_delegate.slide_completed());
 468   EXPECT_FALSE(slider_delegate.created_front_layer());
 469   EXPECT_FALSE(slider_delegate.slide_aborted());
 470   EXPECT_FALSE(slider_delegate.slider_destroyed());
 471 }
 472
 473 // If the delegate doesn't create the layer to show while sliding, WindowSlider
 474 // shouldn't start the slide or change delegate's state in any way in response
 475 // to user input.
 476 TEST_F(WindowSliderTest, NoSlideWhenLayerCantBeCreated) {
 477   scoped_ptr<aura::Window> window(CreateNormalWindow(0, root_window(), NULL));
 478   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 479   WindowSliderDelegateTest slider_delegate;
 480   slider_delegate.SetCanCreateLayer(false);
 481   WindowSlider* slider =
 482       new WindowSlider(&slider_delegate, root_window(), window.get());
 483
 484   ui::test::EventGenerator generator(root_window());
 485
 486   // No slide in progress should be reported during scroll since the layer
 487   // wasn't created.
 488   generator.GestureScrollSequenceWithCallback(
 489       gfx::Point(10, 10),
 490       gfx::Point(180, 10),
 491       base::TimeDelta::FromMilliseconds(10),
 492       1,
 493       base::Bind(&ConfirmNoSlideDuringScrollCallback, slider));
 494
 495   EXPECT_FALSE(slider_delegate.created_back_layer());
 496   EXPECT_FALSE(slider_delegate.slide_completing());
 497   EXPECT_FALSE(slider_delegate.slide_completed());
 498   EXPECT_FALSE(slider_delegate.created_front_layer());
 499   EXPECT_FALSE(slider_delegate.slide_aborted());
 500   EXPECT_FALSE(slider_delegate.slider_destroyed());
 501   window->SetTransform(gfx::Transform());
 502
 503   slider_delegate.SetCanCreateLayer(true);
 504   generator.GestureScrollSequenceWithCallback(
 505       gfx::Point(10, 10),
 506       gfx::Point(180, 10),
 507       base::TimeDelta::FromMilliseconds(10),
 508       10,
 509       base::Bind(&ConfirmSlideDuringScrollCallback, slider));
 510   EXPECT_TRUE(slider_delegate.created_back_layer());
 511   EXPECT_TRUE(slider_delegate.slide_completing());
 512   EXPECT_TRUE(slider_delegate.slide_completed());
 513   EXPECT_FALSE(slider_delegate.created_front_layer());
 514   EXPECT_FALSE(slider_delegate.slide_aborted());
 515   EXPECT_FALSE(slider_delegate.slider_destroyed());
 516
 517   window.reset();
 518   EXPECT_TRUE(slider_delegate.slider_destroyed());
 519 }
 520
 521 // Tests that the owner window can be destroyed from |OnWindowSliderDestroyed()|
 522 // delegate callback without causing a crash.
 523 TEST_F(WindowSliderTest, OwnerIsDestroyedOnSliderDestroy) {
 524   size_t child_windows = root_window()->children().size();
 525   aura::Window* window = CreateNormalWindow(0, root_window(), NULL);
 526   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 527   EXPECT_EQ(child_windows + 1, root_window()->children().size());
 528
 529   WindowSliderDeleteOwnerOnDestroy slider_delegate(window);
 530   ui::test::EventGenerator generator(root_window());
 531
 532   // Generate a horizontal overscroll.
 533   scoped_ptr<WindowSlider> slider(
 534       new WindowSlider(&slider_delegate, root_window(), window));
 535   generator.GestureScrollSequence(gfx::Point(10, 10),
 536                                   gfx::Point(180, 10),
 537                                   base::TimeDelta::FromMilliseconds(10),
 538                                   10);
 539   EXPECT_TRUE(slider_delegate.created_back_layer());
 540   EXPECT_TRUE(slider_delegate.slide_completing());
 541   EXPECT_TRUE(slider_delegate.slide_completed());
 542   EXPECT_FALSE(slider_delegate.created_front_layer());
 543   EXPECT_FALSE(slider_delegate.slide_aborted());
 544   EXPECT_FALSE(slider_delegate.slider_destroyed());
 545
 546   slider.reset();
 547   // Destroying the slider would have destroyed |window| too. So |window| should
 548   // not need to be destroyed here.
 549   EXPECT_EQ(child_windows, root_window()->children().size());
 550 }
 551
 552 // Tests that the owner window can be destroyed from |OnWindowSlideComplete()|
 553 // delegate callback without causing a crash.
 554 TEST_F(WindowSliderTest, OwnerIsDestroyedOnSlideComplete) {
 555   size_t child_windows = root_window()->children().size();
 556   aura::Window* window = CreateNormalWindow(0, root_window(), NULL);
 557   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 558   EXPECT_EQ(child_windows + 1, root_window()->children().size());
 559
 560   WindowSliderDeleteOwnerOnComplete slider_delegate(window);
 561   ui::test::EventGenerator generator(root_window());
 562
 563   // Generate a horizontal overscroll.
 564   new WindowSlider(&slider_delegate, root_window(), window);
 565   generator.GestureScrollSequence(gfx::Point(10, 10),
 566                                   gfx::Point(180, 10),
 567                                   base::TimeDelta::FromMilliseconds(10),
 568                                   10);
 569   EXPECT_TRUE(slider_delegate.created_back_layer());
 570   EXPECT_TRUE(slider_delegate.slide_completing());
 571   EXPECT_TRUE(slider_delegate.slide_completed());
 572   EXPECT_FALSE(slider_delegate.created_front_layer());
 573   EXPECT_FALSE(slider_delegate.slide_aborted());
 574   EXPECT_TRUE(slider_delegate.slider_destroyed());
 575
 576   // Destroying the slider would have destroyed |window| too. So |window| should
 577   // not need to be destroyed here.
 578   EXPECT_EQ(child_windows, root_window()->children().size());
 579 }
 580
 581 // Test the scenario when two swipe gesture occur quickly one after another so
 582 // that the second swipe occurs while the transition animation triggered by the
 583 // first swipe is in progress.
 584 // The second swipe is supposed to instantly complete the animation caused by
 585 // the first swipe, ask the delegate to create a new layer, and animate it.
 586 TEST_F(WindowSliderTest, SwipeDuringSwipeAnimation) {
 587   scoped_ptr<aura::Window> window(CreateNormalWindow(0, root_window(), NULL));
 588   window->SetBounds(gfx::Rect(0, 0, 400, 400));
 589   WindowSliderDelegateTest slider_delegate;
 590   new WindowSlider(&slider_delegate, root_window(), window.get());
 591
 592   // This test uses explicit durations so needs a normal duration.
 593   ui::ScopedAnimationDurationScaleMode normal_duration(
 594       ui::ScopedAnimationDurationScaleMode::NORMAL_DURATION);
 595   ui::LayerAnimator* animator = window->layer()->GetAnimator();
 596   animator->set_disable_timer_for_test(true);
 597   ui::LayerAnimatorTestController test_controller(animator);
 598
 599   ui::test::EventGenerator generator(root_window());
 600
 601   // Swipe forward so that |window|'s layer is the one animating.
 602   generator.GestureScrollSequence(
 603       gfx::Point(10, 10),
 604       gfx::Point(180, 10),
 605       base::TimeDelta::FromMilliseconds(10),
 606       2);
 607   EXPECT_TRUE(slider_delegate.created_back_layer());
 608   EXPECT_FALSE(slider_delegate.slide_aborted());
 609   EXPECT_FALSE(slider_delegate.created_front_layer());
 610   EXPECT_TRUE(slider_delegate.slide_completing());
 611   EXPECT_FALSE(slider_delegate.slide_completed());
 612   EXPECT_FALSE(slider_delegate.slider_destroyed());
 613   ui::ScopedLayerAnimationSettings settings(animator);
 614   base::TimeDelta duration = settings.GetTransitionDuration();
 615   test_controller.StartThreadedAnimationsIfNeeded();
 616   base::TimeTicks start_time1 =  gfx::FrameTime::Now();
 617
 618   animator->Step(start_time1 + duration / 2);
 619   EXPECT_FALSE(slider_delegate.slide_completed());
 620   slider_delegate.Reset();
 621   // Generate another horizontal swipe while the animation from the previous
 622   // swipe is in progress.
 623   generator.GestureScrollSequence(
 624       gfx::Point(10, 10),
 625       gfx::Point(180, 10),
 626       base::TimeDelta::FromMilliseconds(10),
 627       2);
 628   // Performing the second swipe should instantly complete the slide started
 629   // by the first swipe and create a new layer.
 630   EXPECT_TRUE(slider_delegate.created_back_layer());
 631   EXPECT_FALSE(slider_delegate.slide_aborted());
 632   EXPECT_FALSE(slider_delegate.created_front_layer());
 633   EXPECT_TRUE(slider_delegate.slide_completing());
 634   EXPECT_TRUE(slider_delegate.slide_completed());
 635   EXPECT_FALSE(slider_delegate.slider_destroyed());
 636   test_controller.StartThreadedAnimationsIfNeeded();
 637   base::TimeTicks start_time2 =  gfx::FrameTime::Now();
 638   slider_delegate.Reset();
 639   animator->Step(start_time2 + duration);
 640   // The animation for the second slide should now be completed.
 641   EXPECT_TRUE(slider_delegate.slide_completed());
 642   slider_delegate.Reset();
 643
 644   window.reset();
 645   EXPECT_TRUE(slider_delegate.slider_destroyed());
 646 }
 647
 648 }  // namespace content