src/ui/compositor/layer_animator_unittest.cc

   1 // Copyright (c) 2012 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 "ui/compositor/layer_animator.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/stringprintf.h"
  11 #include "base/time/time.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13 #include "ui/compositor/layer.h"
  14 #include "ui/compositor/layer_animation_delegate.h"
  15 #include "ui/compositor/layer_animation_element.h"
  16 #include "ui/compositor/layer_animation_sequence.h"
  17 #include "ui/compositor/layer_animator_collection.h"
  18 #include "ui/compositor/scoped_animation_duration_scale_mode.h"
  19 #include "ui/compositor/scoped_layer_animation_settings.h"
  20 #include "ui/compositor/test/context_factories_for_test.h"
  21 #include "ui/compositor/test/layer_animator_test_controller.h"
  22 #include "ui/compositor/test/test_compositor_host.h"
  23 #include "ui/compositor/test/test_layer_animation_delegate.h"
  24 #include "ui/compositor/test/test_layer_animation_observer.h"
  25 #include "ui/compositor/test/test_utils.h"
  26 #include "ui/gfx/frame_time.h"
  27 #include "ui/gfx/rect.h"
  28 #include "ui/gfx/transform.h"
  29
  30 namespace ui {
  31
  32 namespace {
  33
  34 // Converts |color| to a string. Each component of the color is separated by a
  35 // space and the order if A R G B.
  36 std::string ColorToString(SkColor color) {
  37   return base::StringPrintf("%d %d %d %d", SkColorGetA(color),
  38                             SkColorGetR(color), SkColorGetG(color),
  39                             SkColorGetB(color));
  40 }
  41
  42 // Creates vector with two LayerAnimationSequences, based on |first| and
  43 // |second| layer animation elements.
  44 std::vector<LayerAnimationSequence*> CreateMultiSequence(
  45     LayerAnimationElement* first,
  46     LayerAnimationElement* second) {
  47   LayerAnimationSequence* first_sequence = new LayerAnimationSequence();
  48   first_sequence->AddElement(first);
  49   LayerAnimationSequence* second_sequence = new LayerAnimationSequence();
  50   second_sequence->AddElement(second);
  51
  52   std::vector<ui::LayerAnimationSequence*> animations;
  53   animations.push_back(first_sequence);
  54   animations.push_back(second_sequence);
  55   return animations;
  56 }
  57
  58 class TestImplicitAnimationObserver : public ImplicitAnimationObserver {
  59  public:
  60   explicit TestImplicitAnimationObserver(bool notify_when_animator_destructed)
  61     : animations_completed_(false),
  62       notify_when_animator_destructed_(notify_when_animator_destructed) {
  63   }
  64
  65   bool animations_completed() const { return animations_completed_; }
  66   void set_animations_completed(bool completed) {
  67     animations_completed_ = completed;
  68   }
  69
  70   bool WasAnimationAbortedForProperty(
  71       LayerAnimationElement::AnimatableProperty property) const {
  72     return ImplicitAnimationObserver::WasAnimationAbortedForProperty(property);
  73   }
  74
  75   bool WasAnimationCompletedForProperty(
  76       LayerAnimationElement::AnimatableProperty property) const {
  77     return ImplicitAnimationObserver::WasAnimationCompletedForProperty(
  78         property);
  79   }
  80
  81  private:
  82   // ImplicitAnimationObserver implementation
  83   virtual void OnImplicitAnimationsCompleted() OVERRIDE {
  84     animations_completed_ = true;
  85   }
  86
  87   virtual bool RequiresNotificationWhenAnimatorDestroyed() const OVERRIDE {
  88     return notify_when_animator_destructed_;
  89   }
  90
  91   bool animations_completed_;
  92   bool notify_when_animator_destructed_;
  93
  94   DISALLOW_COPY_AND_ASSIGN(TestImplicitAnimationObserver);
  95 };
  96
  97 // When notified that an animation has ended, stops all other animations.
  98 class DeletingLayerAnimationObserver : public LayerAnimationObserver {
  99  public:
 100   DeletingLayerAnimationObserver(LayerAnimator* animator)
 101     : animator_(animator) {
 102   }
 103
 104   virtual void OnLayerAnimationEnded(
 105       LayerAnimationSequence* sequence) OVERRIDE {
 106     animator_->StopAnimating();
 107   }
 108
 109   virtual void OnLayerAnimationAborted(
 110       LayerAnimationSequence* sequence) OVERRIDE {
 111     animator_->StopAnimating();
 112   }
 113
 114   virtual void OnLayerAnimationScheduled(
 115       LayerAnimationSequence* sequence) OVERRIDE {
 116   }
 117
 118  private:
 119   LayerAnimator* animator_;
 120
 121   DISALLOW_COPY_AND_ASSIGN(DeletingLayerAnimationObserver);
 122 };
 123
 124 class LayerAnimatorDestructionObserver {
 125  public:
 126   LayerAnimatorDestructionObserver() : animator_deleted_(false) {}
 127   virtual ~LayerAnimatorDestructionObserver() {}
 128
 129   void NotifyAnimatorDeleted() {
 130     animator_deleted_ = true;
 131   }
 132
 133   bool IsAnimatorDeleted() {
 134     return animator_deleted_;
 135   }
 136
 137  private:
 138   bool animator_deleted_;
 139
 140   DISALLOW_COPY_AND_ASSIGN(LayerAnimatorDestructionObserver);
 141 };
 142
 143 class TestLayerAnimator : public LayerAnimator {
 144  public:
 145   TestLayerAnimator() : LayerAnimator(base::TimeDelta::FromSeconds(0)),
 146       destruction_observer_(NULL) {}
 147
 148   void SetDestructionObserver(
 149       LayerAnimatorDestructionObserver* observer) {
 150     destruction_observer_ = observer;
 151   }
 152
 153  protected:
 154   virtual ~TestLayerAnimator() {
 155     if (destruction_observer_) {
 156       destruction_observer_->NotifyAnimatorDeleted();
 157     }
 158   }
 159
 160   virtual void ProgressAnimation(LayerAnimationSequence* sequence,
 161                                  base::TimeTicks now) OVERRIDE {
 162     EXPECT_TRUE(HasAnimation(sequence));
 163     LayerAnimator::ProgressAnimation(sequence, now);
 164   }
 165
 166  private:
 167   LayerAnimatorDestructionObserver* destruction_observer_;
 168
 169   DISALLOW_COPY_AND_ASSIGN(TestLayerAnimator);
 170 };
 171
 172 // The test layer animation sequence updates a live instances count when it is
 173 // created and destroyed.
 174 class TestLayerAnimationSequence : public LayerAnimationSequence {
 175  public:
 176   TestLayerAnimationSequence(LayerAnimationElement* element,
 177                              int* num_live_instances)
 178       : LayerAnimationSequence(element),
 179         num_live_instances_(num_live_instances) {
 180     (*num_live_instances_)++;
 181   }
 182
 183   virtual ~TestLayerAnimationSequence() {
 184     (*num_live_instances_)--;
 185   }
 186
 187  private:
 188   int* num_live_instances_;
 189
 190   DISALLOW_COPY_AND_ASSIGN(TestLayerAnimationSequence);
 191 };
 192
 193 } // namespace
 194
 195 // Checks that setting a property on an implicit animator causes an animation to
 196 // happen.
 197 TEST(LayerAnimatorTest, ImplicitAnimation) {
 198   scoped_refptr<LayerAnimator> animator(
 199       LayerAnimator::CreateImplicitAnimator());
 200   animator->set_disable_timer_for_test(true);
 201   TestLayerAnimationDelegate delegate;
 202   animator->SetDelegate(&delegate);
 203   base::TimeTicks now = gfx::FrameTime::Now();
 204   animator->SetBrightness(0.5);
 205   EXPECT_TRUE(animator->is_animating());
 206   animator->Step(now + base::TimeDelta::FromSeconds(1));
 207   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), 0.5);
 208 }
 209
 210 // Checks that if the animator is a default animator, that implicit animations
 211 // are not started.
 212 TEST(LayerAnimatorTest, NoImplicitAnimation) {
 213   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 214   animator->set_disable_timer_for_test(true);
 215   TestLayerAnimationDelegate delegate;
 216   animator->SetDelegate(&delegate);
 217   animator->SetBrightness(0.5);
 218   EXPECT_FALSE(animator->is_animating());
 219   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), 0.5);
 220 }
 221
 222 // Checks that StopAnimatingProperty stops animation for that property, and also
 223 // skips the stopped animation to the end.
 224 TEST(LayerAnimatorTest, StopAnimatingProperty) {
 225   scoped_refptr<LayerAnimator> animator(
 226       LayerAnimator::CreateImplicitAnimator());
 227   animator->set_disable_timer_for_test(true);
 228   TestLayerAnimationDelegate delegate;
 229   animator->SetDelegate(&delegate);
 230   double target_opacity(0.5);
 231   gfx::Rect target_bounds(0, 0, 50, 50);
 232   animator->SetOpacity(target_opacity);
 233   animator->SetBounds(target_bounds);
 234   animator->StopAnimatingProperty(LayerAnimationElement::OPACITY);
 235   EXPECT_TRUE(animator->is_animating());
 236   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), 0.5);
 237   animator->StopAnimatingProperty(LayerAnimationElement::BOUNDS);
 238   EXPECT_FALSE(animator->is_animating());
 239   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
 240 }
 241
 242 // Checks that multiple running animation for separate properties can be stopped
 243 // simultaneously and that all animations are advanced to their target values.
 244 TEST(LayerAnimatorTest, StopAnimating) {
 245   scoped_refptr<LayerAnimator> animator(
 246       LayerAnimator::CreateImplicitAnimator());
 247   animator->set_disable_timer_for_test(true);
 248   TestLayerAnimationDelegate delegate;
 249   animator->SetDelegate(&delegate);
 250   double target_opacity(0.5);
 251   gfx::Rect target_bounds(0, 0, 50, 50);
 252   animator->SetOpacity(target_opacity);
 253   animator->SetBounds(target_bounds);
 254   EXPECT_TRUE(animator->is_animating());
 255   animator->StopAnimating();
 256   EXPECT_FALSE(animator->is_animating());
 257   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), 0.5);
 258   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
 259 }
 260
 261 // Checks that multiple running animation for separate properties can be stopped
 262 // simultaneously and that all animations are advanced to their target values.
 263 TEST(LayerAnimatorTest, AbortAllAnimations) {
 264   scoped_refptr<LayerAnimator> animator(
 265       LayerAnimator::CreateImplicitAnimator());
 266   animator->set_disable_timer_for_test(true);
 267   TestLayerAnimationDelegate delegate;
 268   double initial_opacity(1.0);
 269   gfx::Rect initial_bounds(0, 0, 10, 10);
 270   delegate.SetOpacityFromAnimation(initial_opacity);
 271   delegate.SetBoundsFromAnimation(initial_bounds);
 272   animator->SetDelegate(&delegate);
 273   double target_opacity(0.5);
 274   gfx::Rect target_bounds(0, 0, 50, 50);
 275   animator->SetOpacity(target_opacity);
 276   animator->SetBounds(target_bounds);
 277   EXPECT_TRUE(animator->is_animating());
 278   animator->AbortAllAnimations();
 279   EXPECT_FALSE(animator->is_animating());
 280   EXPECT_FLOAT_EQ(initial_opacity, delegate.GetOpacityForAnimation());
 281   CheckApproximatelyEqual(initial_bounds, delegate.GetBoundsForAnimation());
 282 }
 283
 284 // Schedule a non-threaded animation that can run immediately. This is the
 285 // trivial case and should result in the animation being started immediately.
 286 TEST(LayerAnimatorTest, ScheduleAnimationThatCanRunImmediately) {
 287   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 288   animator->set_disable_timer_for_test(true);
 289   TestLayerAnimationDelegate delegate;
 290   animator->SetDelegate(&delegate);
 291
 292   double start_brightness(0.0);
 293   double middle_brightness(0.5);
 294   double target_brightness(1.0);
 295
 296   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 297
 298   delegate.SetBrightnessFromAnimation(start_brightness);
 299
 300   animator->ScheduleAnimation(
 301       new LayerAnimationSequence(
 302           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 303                                                          delta)));
 304
 305   EXPECT_TRUE(animator->is_animating());
 306   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 307
 308   base::TimeTicks start_time = animator->last_step_time();
 309
 310   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 311
 312   EXPECT_TRUE(animator->is_animating());
 313   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 314
 315   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 316
 317   EXPECT_FALSE(animator->is_animating());
 318   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
 319 }
 320
 321 // Schedule a threaded animation that can run immediately.
 322 TEST(LayerAnimatorTest, ScheduleThreadedAnimationThatCanRunImmediately) {
 323   double epsilon = 0.00001;
 324   LayerAnimatorTestController test_controller(
 325       LayerAnimator::CreateDefaultAnimator());
 326   LayerAnimator* animator = test_controller.animator();
 327   test_controller.animator()->set_disable_timer_for_test(true);
 328   TestLayerAnimationDelegate delegate;
 329   test_controller.animator()->SetDelegate(&delegate);
 330
 331   double start_opacity(0.0);
 332   double target_opacity(1.0);
 333
 334   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 335
 336   delegate.SetOpacityFromAnimation(start_opacity);
 337
 338   test_controller.animator()->ScheduleAnimation(
 339       new LayerAnimationSequence(
 340           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
 341
 342   EXPECT_TRUE(test_controller.animator()->is_animating());
 343   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
 344
 345   base::TimeTicks start_time = test_controller.animator()->last_step_time();
 346   base::TimeTicks effective_start = start_time + delta;
 347
 348   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
 349       cc::AnimationEvent::Started,
 350       0,
 351       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
 352           ->animation_group_id(),
 353       cc::Animation::Opacity,
 354       effective_start));
 355
 356   animator->Step(effective_start + delta / 2);
 357
 358   EXPECT_TRUE(test_controller.animator()->is_animating());
 359   EXPECT_NEAR(
 360       0.5,
 361       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)->
 362           last_progressed_fraction(),
 363       epsilon);
 364
 365   animator->Step(effective_start + delta);
 366
 367   EXPECT_FALSE(test_controller.animator()->is_animating());
 368   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), target_opacity);
 369 }
 370
 371 // Schedule two non-threaded animations on separate properties. Both animations
 372 // should start immediately and should progress in lock step.
 373 TEST(LayerAnimatorTest, ScheduleTwoAnimationsThatCanRunImmediately) {
 374   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 375   animator->set_disable_timer_for_test(true);
 376   TestLayerAnimationDelegate delegate;
 377   animator->SetDelegate(&delegate);
 378
 379   double start_brightness(0.0);
 380   double middle_brightness(0.5);
 381   double target_brightness(1.0);
 382
 383   gfx::Rect start_bounds, target_bounds, middle_bounds;
 384   start_bounds = target_bounds = middle_bounds = gfx::Rect(0, 0, 50, 50);
 385   start_bounds.set_x(-90);
 386   target_bounds.set_x(90);
 387
 388   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 389
 390   delegate.SetBrightnessFromAnimation(start_brightness);
 391   delegate.SetBoundsFromAnimation(start_bounds);
 392
 393   animator->ScheduleAnimation(
 394       new LayerAnimationSequence(
 395           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 396                                                          delta)));
 397
 398   animator->ScheduleAnimation(
 399       new LayerAnimationSequence(
 400           LayerAnimationElement::CreateBoundsElement(target_bounds, delta)));
 401
 402   EXPECT_TRUE(animator->is_animating());
 403   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 404   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 405
 406   base::TimeTicks start_time = animator->last_step_time();
 407
 408   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 409
 410   EXPECT_TRUE(animator->is_animating());
 411   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 412   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), middle_bounds);
 413
 414   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 415
 416   EXPECT_FALSE(animator->is_animating());
 417   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
 418   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
 419 }
 420
 421 // Schedule a threaded and a non-threaded animation on separate properties. Both
 422 // animations should progress in lock step.
 423 TEST(LayerAnimatorTest, ScheduleThreadedAndNonThreadedAnimations) {
 424   double epsilon = 0.00001;
 425   LayerAnimatorTestController test_controller(
 426       LayerAnimator::CreateDefaultAnimator());
 427   LayerAnimator* animator = test_controller.animator();
 428   test_controller.animator()->set_disable_timer_for_test(true);
 429   TestLayerAnimationDelegate delegate;
 430   test_controller.animator()->SetDelegate(&delegate);
 431
 432   double start_opacity(0.0);
 433   double target_opacity(1.0);
 434
 435   gfx::Rect start_bounds, target_bounds, middle_bounds;
 436   start_bounds = target_bounds = middle_bounds = gfx::Rect(0, 0, 50, 50);
 437   start_bounds.set_x(-90);
 438   target_bounds.set_x(90);
 439
 440   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 441
 442   delegate.SetOpacityFromAnimation(start_opacity);
 443   delegate.SetBoundsFromAnimation(start_bounds);
 444
 445   std::vector<LayerAnimationSequence*> animations;
 446   animations.push_back(
 447       new LayerAnimationSequence(
 448           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
 449
 450   animations.push_back(
 451       new LayerAnimationSequence(
 452           LayerAnimationElement::CreateBoundsElement(target_bounds, delta)));
 453
 454   test_controller.animator()->ScheduleTogether(animations);
 455
 456   EXPECT_TRUE(test_controller.animator()->is_animating());
 457   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
 458   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 459
 460   base::TimeTicks start_time = test_controller.animator()->last_step_time();
 461   base::TimeTicks effective_start = start_time + delta;
 462
 463   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
 464       cc::AnimationEvent::Started,
 465       0,
 466       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
 467           ->animation_group_id(),
 468       cc::Animation::Opacity,
 469       effective_start));
 470
 471   animator->Step(effective_start + delta / 2);
 472
 473   EXPECT_TRUE(test_controller.animator()->is_animating());
 474   EXPECT_NEAR(
 475       0.5,
 476       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)->
 477           last_progressed_fraction(),
 478       epsilon);
 479   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), middle_bounds);
 480
 481   animator->Step(effective_start + delta);
 482
 483   EXPECT_FALSE(test_controller.animator()->is_animating());
 484   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), target_opacity);
 485   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
 486 }
 487
 488 // Schedule two animations on the same property. In this case, the two
 489 // animations should run one after another.
 490 TEST(LayerAnimatorTest, ScheduleTwoAnimationsOnSameProperty) {
 491   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 492   animator->set_disable_timer_for_test(true);
 493   TestLayerAnimationDelegate delegate;
 494   animator->SetDelegate(&delegate);
 495
 496   double start_brightness(0.0);
 497   double middle_brightness(0.5);
 498   double target_brightness(1.0);
 499
 500   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 501
 502   delegate.SetBrightnessFromAnimation(start_brightness);
 503
 504   animator->ScheduleAnimation(
 505       new LayerAnimationSequence(
 506           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 507                                                          delta)));
 508
 509   animator->ScheduleAnimation(
 510       new LayerAnimationSequence(
 511           LayerAnimationElement::CreateBrightnessElement(start_brightness,
 512                                                          delta)));
 513
 514   EXPECT_TRUE(animator->is_animating());
 515   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 516
 517   base::TimeTicks start_time = animator->last_step_time();
 518
 519   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 520
 521   EXPECT_TRUE(animator->is_animating());
 522   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 523
 524   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 525
 526   EXPECT_TRUE(animator->is_animating());
 527   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
 528
 529   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
 530
 531   EXPECT_TRUE(animator->is_animating());
 532   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 533
 534   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
 535
 536   EXPECT_FALSE(animator->is_animating());
 537   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 538 }
 539
 540 // Schedule [{g}, {g,b}, {b}] and ensure that {b} doesn't run right away. That
 541 // is, ensure that all animations targetting a particular property are run in
 542 // order.
 543 TEST(LayerAnimatorTest, ScheduleBlockedAnimation) {
 544   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 545   animator->set_disable_timer_for_test(true);
 546   TestLayerAnimationDelegate delegate;
 547   animator->SetDelegate(&delegate);
 548
 549   double start_grayscale(0.0);
 550   double middle_grayscale(0.5);
 551   double target_grayscale(1.0);
 552
 553   gfx::Rect start_bounds, target_bounds, middle_bounds;
 554   start_bounds = target_bounds = middle_bounds = gfx::Rect(0, 0, 50, 50);
 555   start_bounds.set_x(-90);
 556   target_bounds.set_x(90);
 557
 558   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 559
 560   delegate.SetGrayscaleFromAnimation(start_grayscale);
 561   delegate.SetBoundsFromAnimation(start_bounds);
 562
 563   animator->ScheduleAnimation(
 564       new LayerAnimationSequence(
 565           LayerAnimationElement::CreateGrayscaleElement(target_grayscale,
 566                                                         delta)));
 567
 568   scoped_ptr<LayerAnimationSequence> bounds_and_grayscale(
 569       new LayerAnimationSequence(
 570           LayerAnimationElement::CreateGrayscaleElement(start_grayscale,
 571                                                         delta)));
 572
 573   bounds_and_grayscale->AddElement(
 574       LayerAnimationElement::CreateBoundsElement(target_bounds, delta));
 575
 576   animator->ScheduleAnimation(bounds_and_grayscale.release());
 577
 578   animator->ScheduleAnimation(
 579       new LayerAnimationSequence(
 580           LayerAnimationElement::CreateBoundsElement(start_bounds, delta)));
 581
 582   EXPECT_TRUE(animator->is_animating());
 583   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
 584   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 585
 586   base::TimeTicks start_time = animator->last_step_time();
 587
 588   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 589
 590   EXPECT_TRUE(animator->is_animating());
 591   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), middle_grayscale);
 592   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 593
 594   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 595
 596   EXPECT_TRUE(animator->is_animating());
 597   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), target_grayscale);
 598   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 599
 600   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
 601
 602   EXPECT_TRUE(animator->is_animating());
 603   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
 604   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 605
 606   animator->Step(start_time + base::TimeDelta::FromMilliseconds(3000));
 607
 608   EXPECT_TRUE(animator->is_animating());
 609   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
 610   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
 611
 612   animator->Step(start_time + base::TimeDelta::FromMilliseconds(4000));
 613
 614   EXPECT_FALSE(animator->is_animating());
 615   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
 616   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 617 }
 618
 619 // Schedule {g} and then schedule {g} and {b} together. In this case, since
 620 // ScheduleTogether is being used, the bounds animation should not start until
 621 // the second grayscale animation starts.
 622 TEST(LayerAnimatorTest, ScheduleTogether) {
 623   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 624   animator->set_disable_timer_for_test(true);
 625   TestLayerAnimationDelegate delegate;
 626   animator->SetDelegate(&delegate);
 627
 628   double start_grayscale(0.0);
 629   double target_grayscale(1.0);
 630
 631   gfx::Rect start_bounds, target_bounds, middle_bounds;
 632   start_bounds = target_bounds = gfx::Rect(0, 0, 50, 50);
 633   start_bounds.set_x(-90);
 634   target_bounds.set_x(90);
 635
 636   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 637
 638   delegate.SetGrayscaleFromAnimation(start_grayscale);
 639   delegate.SetBoundsFromAnimation(start_bounds);
 640
 641   animator->ScheduleAnimation(
 642       new LayerAnimationSequence(
 643           LayerAnimationElement::CreateGrayscaleElement(target_grayscale,
 644                                                         delta)));
 645
 646   std::vector<LayerAnimationSequence*> sequences;
 647   sequences.push_back(new LayerAnimationSequence(
 648       LayerAnimationElement::CreateGrayscaleElement(start_grayscale, delta)));
 649   sequences.push_back(new LayerAnimationSequence(
 650       LayerAnimationElement::CreateBoundsElement(target_bounds, delta)));
 651
 652   animator->ScheduleTogether(sequences);
 653
 654   EXPECT_TRUE(animator->is_animating());
 655   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
 656   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 657
 658   base::TimeTicks start_time = animator->last_step_time();
 659
 660   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 661
 662   EXPECT_TRUE(animator->is_animating());
 663   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), target_grayscale);
 664   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), start_bounds);
 665
 666   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
 667
 668   EXPECT_FALSE(animator->is_animating());
 669   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
 670   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
 671 }
 672
 673 // Start non-threaded animation (that can run immediately). This is the trivial
 674 // case (see the trival case for ScheduleAnimation).
 675 TEST(LayerAnimatorTest, StartAnimationThatCanRunImmediately) {
 676   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 677   animator->set_disable_timer_for_test(true);
 678   TestLayerAnimationDelegate delegate;
 679   animator->SetDelegate(&delegate);
 680
 681   double start_brightness(0.0);
 682   double middle_brightness(0.5);
 683   double target_brightness(1.0);
 684
 685   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 686
 687   delegate.SetBrightnessFromAnimation(start_brightness);
 688
 689   animator->StartAnimation(
 690       new LayerAnimationSequence(
 691           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 692                                                          delta)));
 693
 694   EXPECT_TRUE(animator->is_animating());
 695   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 696
 697   base::TimeTicks start_time = animator->last_step_time();
 698
 699   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 700
 701   EXPECT_TRUE(animator->is_animating());
 702   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 703
 704   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 705
 706   EXPECT_FALSE(animator->is_animating());
 707   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
 708 }
 709
 710 // Start threaded animation (that can run immediately).
 711 TEST(LayerAnimatorTest, StartThreadedAnimationThatCanRunImmediately) {
 712   double epsilon = 0.00001;
 713   LayerAnimatorTestController test_controller(
 714       LayerAnimator::CreateDefaultAnimator());
 715   LayerAnimator* animator = test_controller.animator();
 716   test_controller.animator()->set_disable_timer_for_test(true);
 717   TestLayerAnimationDelegate delegate;
 718   test_controller.animator()->SetDelegate(&delegate);
 719
 720   double start_opacity(0.0);
 721   double target_opacity(1.0);
 722
 723   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 724
 725   delegate.SetOpacityFromAnimation(start_opacity);
 726
 727   test_controller.animator()->StartAnimation(
 728       new LayerAnimationSequence(
 729           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
 730
 731   EXPECT_TRUE(test_controller.animator()->is_animating());
 732   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
 733
 734   base::TimeTicks start_time = test_controller.animator()->last_step_time();
 735   base::TimeTicks effective_start = start_time + delta;
 736
 737   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
 738       cc::AnimationEvent::Started,
 739       0,
 740       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
 741           ->animation_group_id(),
 742       cc::Animation::Opacity,
 743       effective_start));
 744
 745   animator->Step(effective_start + delta / 2);
 746
 747   EXPECT_TRUE(test_controller.animator()->is_animating());
 748   EXPECT_NEAR(
 749       0.5,
 750       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)->
 751           last_progressed_fraction(),
 752       epsilon);
 753
 754   animator->Step(effective_start + delta);
 755   EXPECT_FALSE(test_controller.animator()->is_animating());
 756   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), target_opacity);
 757 }
 758
 759 // Preempt by immediately setting new target.
 760 TEST(LayerAnimatorTest, PreemptBySettingNewTarget) {
 761   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 762   animator->set_disable_timer_for_test(true);
 763   TestLayerAnimationDelegate delegate;
 764   animator->SetDelegate(&delegate);
 765
 766   double start_opacity(0.0);
 767   double target_opacity(1.0);
 768
 769   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 770
 771   delegate.SetOpacityFromAnimation(start_opacity);
 772
 773   animator->set_preemption_strategy(LayerAnimator::IMMEDIATELY_SET_NEW_TARGET);
 774
 775   animator->StartAnimation(
 776       new LayerAnimationSequence(
 777           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
 778
 779   animator->StartAnimation(
 780       new LayerAnimationSequence(
 781           LayerAnimationElement::CreateOpacityElement(start_opacity, delta)));
 782
 783   EXPECT_FALSE(animator->is_animating());
 784   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
 785 }
 786
 787 // Preempt by animating to new target, with a non-threaded animation.
 788 TEST(LayerAnimatorTest, PreemptByImmediatelyAnimatingToNewTarget) {
 789   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 790   animator->set_disable_timer_for_test(true);
 791   TestLayerAnimationDelegate delegate;
 792   animator->SetDelegate(&delegate);
 793
 794   double start_brightness(0.0);
 795   double middle_brightness(0.5);
 796   double target_brightness(1.0);
 797
 798   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 799
 800   delegate.SetBrightnessFromAnimation(start_brightness);
 801
 802   animator->set_preemption_strategy(
 803       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
 804
 805   animator->StartAnimation(
 806       new LayerAnimationSequence(
 807           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 808                                                          delta)));
 809
 810   base::TimeTicks start_time = animator->last_step_time();
 811
 812   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 813
 814   animator->StartAnimation(
 815       new LayerAnimationSequence(
 816           LayerAnimationElement::CreateBrightnessElement(start_brightness,
 817                                                          delta)));
 818
 819   EXPECT_TRUE(animator->is_animating());
 820   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 821
 822   animator->StartAnimation(
 823       new LayerAnimationSequence(
 824           LayerAnimationElement::CreateBrightnessElement(start_brightness,
 825                                                          delta)));
 826
 827   EXPECT_TRUE(animator->is_animating());
 828
 829   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 830
 831   EXPECT_TRUE(animator->is_animating());
 832   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(),
 833                   0.5 * (start_brightness + middle_brightness));
 834
 835   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
 836
 837   EXPECT_FALSE(animator->is_animating());
 838   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 839 }
 840
 841 // Preempt by animating to new target, with a threaded animation.
 842 TEST(LayerAnimatorTest, PreemptThreadedByImmediatelyAnimatingToNewTarget) {
 843   double epsilon = 0.00001;
 844   LayerAnimatorTestController test_controller(
 845       LayerAnimator::CreateDefaultAnimator());
 846   LayerAnimator* animator = test_controller.animator();
 847   test_controller.animator()->set_disable_timer_for_test(true);
 848   TestLayerAnimationDelegate delegate;
 849   test_controller.animator()->SetDelegate(&delegate);
 850
 851   double start_opacity(0.0);
 852   double middle_opacity(0.5);
 853   double target_opacity(1.0);
 854
 855   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 856
 857   delegate.SetOpacityFromAnimation(start_opacity);
 858
 859   test_controller.animator()->set_preemption_strategy(
 860       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
 861
 862   test_controller.animator()->StartAnimation(
 863       new LayerAnimationSequence(
 864           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
 865
 866   base::TimeTicks start_time = test_controller.animator()->last_step_time();
 867   base::TimeTicks effective_start = start_time + delta;
 868
 869   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
 870       cc::AnimationEvent::Started,
 871       0,
 872       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
 873           ->animation_group_id(),
 874       cc::Animation::Opacity,
 875       effective_start));
 876
 877   animator->Step(effective_start + delta / 2);
 878
 879   test_controller.animator()->StartAnimation(
 880       new LayerAnimationSequence(
 881           LayerAnimationElement::CreateOpacityElement(start_opacity, delta)));
 882
 883   EXPECT_TRUE(test_controller.animator()->is_animating());
 884   EXPECT_NEAR(delegate.GetOpacityForAnimation(), middle_opacity, epsilon);
 885
 886   test_controller.animator()->StartAnimation(
 887       new LayerAnimationSequence(
 888           LayerAnimationElement::CreateOpacityElement(start_opacity, delta)));
 889
 890   EXPECT_TRUE(test_controller.animator()->is_animating());
 891
 892   base::TimeTicks second_effective_start = effective_start + delta;
 893
 894   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
 895       cc::AnimationEvent::Started,
 896       0,
 897       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
 898           ->animation_group_id(),
 899       cc::Animation::Opacity,
 900       second_effective_start));
 901
 902   animator->Step(second_effective_start + delta / 2);
 903
 904   EXPECT_TRUE(test_controller.animator()->is_animating());
 905   EXPECT_NEAR(
 906       0.5,
 907       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)->
 908           last_progressed_fraction(),
 909       epsilon);
 910
 911   animator->Step(second_effective_start + delta);
 912
 913   EXPECT_FALSE(test_controller.animator()->is_animating());
 914   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
 915 }
 916
 917 // Preempt by enqueuing the new animation.
 918 TEST(LayerAnimatorTest, PreemptEnqueueNewAnimation) {
 919   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 920   animator->set_disable_timer_for_test(true);
 921   TestLayerAnimationDelegate delegate;
 922   animator->SetDelegate(&delegate);
 923
 924   double start_brightness(0.0);
 925   double middle_brightness(0.5);
 926   double target_brightness(1.0);
 927
 928   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 929
 930   delegate.SetBrightnessFromAnimation(start_brightness);
 931
 932   animator->set_preemption_strategy(LayerAnimator::ENQUEUE_NEW_ANIMATION);
 933
 934   animator->StartAnimation(
 935       new LayerAnimationSequence(
 936           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 937                                                           delta)));
 938
 939   base::TimeTicks start_time = animator->last_step_time();
 940
 941   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 942
 943   animator->StartAnimation(
 944       new LayerAnimationSequence(
 945           LayerAnimationElement::CreateBrightnessElement(start_brightness,
 946                                                          delta)));
 947
 948   EXPECT_TRUE(animator->is_animating());
 949   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 950
 951   EXPECT_TRUE(animator->is_animating());
 952
 953   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
 954
 955   EXPECT_TRUE(animator->is_animating());
 956   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
 957
 958   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
 959
 960   EXPECT_TRUE(animator->is_animating());
 961   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
 962
 963   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
 964
 965   EXPECT_FALSE(animator->is_animating());
 966   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
 967 }
 968
 969 // Start an animation when there are sequences waiting in the queue. In this
 970 // case, all pending and running animations should be finished, and the new
 971 // animation started.
 972 TEST(LayerAnimatorTest, PreemptyByReplacingQueuedAnimations) {
 973   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
 974   animator->set_disable_timer_for_test(true);
 975   TestLayerAnimationDelegate delegate;
 976   animator->SetDelegate(&delegate);
 977
 978   double start_brightness(0.0);
 979   double middle_brightness(0.5);
 980   double target_brightness(1.0);
 981
 982   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
 983
 984   delegate.SetBrightnessFromAnimation(start_brightness);
 985
 986   animator->set_preemption_strategy(LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
 987
 988   animator->StartAnimation(
 989       new LayerAnimationSequence(
 990           LayerAnimationElement::CreateBrightnessElement(target_brightness,
 991                                                          delta)));
 992
 993   base::TimeTicks start_time = animator->last_step_time();
 994
 995   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
 996
 997   animator->StartAnimation(
 998       new LayerAnimationSequence(
 999           LayerAnimationElement::CreateBrightnessElement(middle_brightness,
1000                                                          delta)));
1001
1002   // Queue should now have two animations. Starting a third should replace the
1003   // second.
1004   animator->StartAnimation(
1005       new LayerAnimationSequence(
1006           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1007                                                          delta)));
1008
1009   EXPECT_TRUE(animator->is_animating());
1010   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1011
1012   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1013
1014   EXPECT_TRUE(animator->is_animating());
1015   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
1016
1017   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
1018
1019   EXPECT_TRUE(animator->is_animating());
1020   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1021
1022   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
1023
1024   EXPECT_FALSE(animator->is_animating());
1025   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1026 }
1027
1028 TEST(LayerAnimatorTest, StartTogetherSetsLastStepTime) {
1029   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1030   animator->set_disable_timer_for_test(true);
1031   TestLayerAnimationDelegate delegate;
1032   animator->SetDelegate(&delegate);
1033
1034   double start_grayscale(0.0);
1035   double target_grayscale(1.0);
1036   double start_brightness(0.1);
1037   double target_brightness(0.9);
1038
1039   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1040
1041   delegate.SetGrayscaleFromAnimation(start_grayscale);
1042   delegate.SetBrightnessFromAnimation(start_brightness);
1043
1044   animator->set_preemption_strategy(
1045       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
1046
1047   animator->set_last_step_time(base::TimeTicks());
1048
1049   animator->StartTogether(
1050       CreateMultiSequence(
1051           LayerAnimationElement::CreateGrayscaleElement(target_grayscale,
1052                                                         delta),
1053           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1054                                                          delta)
1055       ));
1056
1057   // If last step time was not set correctly, the resulting delta should be
1058   // miniscule (fractions of a millisecond). If set correctly, then the delta
1059   // should be enormous. Arbitrarily choosing 1 minute as the threshold,
1060   // though a much smaller value would probably have sufficed.
1061   delta = gfx::FrameTime::Now() - animator->last_step_time();
1062   EXPECT_GT(60.0, delta.InSecondsF());
1063 }
1064
1065 //-------------------------------------------------------
1066 // Preempt by immediately setting new target.
1067 TEST(LayerAnimatorTest, MultiPreemptBySettingNewTarget) {
1068   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1069   animator->set_disable_timer_for_test(true);
1070   TestLayerAnimationDelegate delegate;
1071   animator->SetDelegate(&delegate);
1072
1073   double start_opacity(0.0);
1074   double target_opacity(1.0);
1075   double start_brightness(0.1);
1076   double target_brightness(0.9);
1077
1078   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1079
1080   delegate.SetOpacityFromAnimation(start_opacity);
1081   delegate.SetBrightnessFromAnimation(start_brightness);
1082
1083   animator->set_preemption_strategy(LayerAnimator::IMMEDIATELY_SET_NEW_TARGET);
1084
1085   animator->StartTogether(
1086       CreateMultiSequence(
1087           LayerAnimationElement::CreateOpacityElement(target_opacity, delta),
1088           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1089                                                          delta)
1090       ));
1091
1092   animator->StartTogether(
1093       CreateMultiSequence(
1094           LayerAnimationElement::CreateOpacityElement(start_opacity, delta),
1095           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1096                                                          delta)
1097       ));
1098
1099   EXPECT_FALSE(animator->is_animating());
1100   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
1101   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1102 }
1103
1104 // Preempt by animating to new target.
1105 TEST(LayerAnimatorTest, MultiPreemptByImmediatelyAnimatingToNewTarget) {
1106   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1107   animator->set_disable_timer_for_test(true);
1108   TestLayerAnimationDelegate delegate;
1109   animator->SetDelegate(&delegate);
1110
1111   double start_grayscale(0.0);
1112   double middle_grayscale(0.5);
1113   double target_grayscale(1.0);
1114
1115   double start_brightness(0.1);
1116   double middle_brightness(0.2);
1117   double target_brightness(0.3);
1118
1119   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1120
1121   delegate.SetGrayscaleFromAnimation(start_grayscale);
1122   delegate.SetBrightnessFromAnimation(start_brightness);
1123
1124   animator->set_preemption_strategy(
1125       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
1126
1127   animator->StartTogether(
1128       CreateMultiSequence(
1129           LayerAnimationElement::CreateGrayscaleElement(target_grayscale,
1130                                                         delta),
1131           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1132                                                          delta)
1133       ));
1134
1135   base::TimeTicks start_time = animator->last_step_time();
1136
1137   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
1138
1139   animator->StartTogether(
1140       CreateMultiSequence(
1141           LayerAnimationElement::CreateGrayscaleElement(start_grayscale, delta),
1142           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1143                                                          delta)));
1144
1145   EXPECT_TRUE(animator->is_animating());
1146   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), middle_grayscale);
1147   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1148
1149   animator->StartTogether(
1150       CreateMultiSequence(
1151           LayerAnimationElement::CreateGrayscaleElement(start_grayscale, delta),
1152           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1153                                                          delta)));
1154
1155   EXPECT_TRUE(animator->is_animating());
1156
1157   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1158
1159   EXPECT_TRUE(animator->is_animating());
1160   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(),
1161                   0.5 * (start_grayscale + middle_grayscale));
1162   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(),
1163                   0.5 * (start_brightness + middle_brightness));
1164
1165   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
1166
1167   EXPECT_FALSE(animator->is_animating());
1168   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
1169   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1170 }
1171
1172 // Preempt a threaded animation by animating to new target.
1173 TEST(LayerAnimatorTest, MultiPreemptThreadedByImmediatelyAnimatingToNewTarget) {
1174   double epsilon = 0.00001;
1175   LayerAnimatorTestController test_controller(
1176       LayerAnimator::CreateDefaultAnimator());
1177   LayerAnimator* animator = test_controller.animator();
1178   test_controller.animator()->set_disable_timer_for_test(true);
1179   TestLayerAnimationDelegate delegate;
1180   test_controller.animator()->SetDelegate(&delegate);
1181
1182   double start_opacity(0.0);
1183   double middle_opacity(0.5);
1184   double target_opacity(1.0);
1185
1186   double start_brightness(0.1);
1187   double middle_brightness(0.2);
1188   double target_brightness(0.3);
1189
1190   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1191
1192   delegate.SetOpacityFromAnimation(start_opacity);
1193   delegate.SetBrightnessFromAnimation(start_brightness);
1194
1195   test_controller.animator()->set_preemption_strategy(
1196       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
1197
1198   test_controller.animator()->StartTogether(
1199       CreateMultiSequence(
1200           LayerAnimationElement::CreateOpacityElement(target_opacity, delta),
1201           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1202                                                          delta)
1203       ));
1204
1205   base::TimeTicks start_time = test_controller.animator()->last_step_time();
1206   base::TimeTicks effective_start = start_time + delta;
1207
1208   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1209       cc::AnimationEvent::Started,
1210       0,
1211       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1212           ->animation_group_id(),
1213       cc::Animation::Opacity,
1214       effective_start));
1215
1216   animator->Step(effective_start + delta / 2);
1217
1218   test_controller.animator()->StartTogether(
1219       CreateMultiSequence(
1220           LayerAnimationElement::CreateOpacityElement(start_opacity, delta),
1221           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1222                                                          delta)));
1223
1224   EXPECT_TRUE(test_controller.animator()->is_animating());
1225   EXPECT_NEAR(delegate.GetOpacityForAnimation(), middle_opacity, epsilon);
1226   EXPECT_NEAR(delegate.GetBrightnessForAnimation(), middle_brightness, epsilon);
1227
1228   test_controller.animator()->StartTogether(
1229       CreateMultiSequence(
1230           LayerAnimationElement::CreateOpacityElement(start_opacity, delta),
1231           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1232                                                          delta)));
1233
1234   EXPECT_TRUE(test_controller.animator()->is_animating());
1235
1236   base::TimeTicks second_effective_start = effective_start + delta;
1237
1238   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1239       cc::AnimationEvent::Started,
1240       0,
1241       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1242           ->animation_group_id(),
1243       cc::Animation::Opacity,
1244       second_effective_start));
1245
1246   animator->Step(second_effective_start + delta / 2);
1247
1248   EXPECT_TRUE(test_controller.animator()->is_animating());
1249   EXPECT_NEAR(
1250       0.5,
1251       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)->
1252           last_progressed_fraction(),
1253       epsilon);
1254   EXPECT_NEAR(delegate.GetBrightnessForAnimation(),
1255               0.5 * (start_brightness + middle_brightness),
1256               epsilon);
1257
1258   animator->Step(second_effective_start + delta);
1259
1260   EXPECT_FALSE(test_controller.animator()->is_animating());
1261   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
1262   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1263 }
1264
1265 // Preempt by enqueuing the new animation.
1266 TEST(LayerAnimatorTest, MultiPreemptEnqueueNewAnimation) {
1267   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1268   animator->set_disable_timer_for_test(true);
1269   TestLayerAnimationDelegate delegate;
1270   animator->SetDelegate(&delegate);
1271
1272   double start_grayscale(0.0);
1273   double middle_grayscale(0.5);
1274   double target_grayscale(1.0);
1275
1276   double start_brightness(0.1);
1277   double middle_brightness(0.2);
1278   double target_brightness(0.3);
1279
1280   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1281
1282   delegate.SetGrayscaleFromAnimation(start_grayscale);
1283   delegate.SetBrightnessFromAnimation(start_brightness);
1284
1285   animator->set_preemption_strategy(LayerAnimator::ENQUEUE_NEW_ANIMATION);
1286
1287   animator->StartTogether(
1288       CreateMultiSequence(
1289           LayerAnimationElement::CreateGrayscaleElement(target_grayscale,
1290                                                         delta),
1291           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1292                                                          delta)));
1293
1294   base::TimeTicks start_time = animator->last_step_time();
1295
1296   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
1297
1298   animator->StartTogether(
1299       CreateMultiSequence(
1300           LayerAnimationElement::CreateGrayscaleElement(start_grayscale, delta),
1301           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1302                                                          delta)));
1303
1304   EXPECT_TRUE(animator->is_animating());
1305   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), middle_grayscale);
1306   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1307
1308   EXPECT_TRUE(animator->is_animating());
1309
1310   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1311
1312   EXPECT_TRUE(animator->is_animating());
1313   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), target_grayscale);
1314   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
1315
1316   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
1317
1318   EXPECT_TRUE(animator->is_animating());
1319   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), middle_grayscale);
1320   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1321
1322   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
1323
1324   EXPECT_FALSE(animator->is_animating());
1325   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
1326   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1327 }
1328
1329 // Start an animation when there are sequences waiting in the queue. In this
1330 // case, all pending and running animations should be finished, and the new
1331 // animation started.
1332 TEST(LayerAnimatorTest, MultiPreemptByReplacingQueuedAnimations) {
1333   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1334   animator->set_disable_timer_for_test(true);
1335   TestLayerAnimationDelegate delegate;
1336   animator->SetDelegate(&delegate);
1337
1338   double start_grayscale(0.0);
1339   double middle_grayscale(0.5);
1340   double target_grayscale(1.0);
1341
1342   double start_brightness(0.1);
1343   double middle_brightness(0.2);
1344   double target_brightness(0.3);
1345
1346   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1347
1348   delegate.SetGrayscaleFromAnimation(start_grayscale);
1349   delegate.SetBrightnessFromAnimation(start_brightness);
1350
1351   animator->set_preemption_strategy(LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
1352
1353   animator->StartTogether(
1354       CreateMultiSequence(
1355           LayerAnimationElement::CreateGrayscaleElement(target_grayscale,
1356                                                         delta),
1357           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1358                                                          delta)));
1359
1360   base::TimeTicks start_time = animator->last_step_time();
1361
1362   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
1363
1364   animator->StartTogether(
1365       CreateMultiSequence(
1366           LayerAnimationElement::CreateGrayscaleElement(middle_grayscale,
1367                                                         delta),
1368           LayerAnimationElement::CreateBrightnessElement(middle_brightness,
1369                                                          delta)));
1370
1371   // Queue should now have two animations. Starting a third should replace the
1372   // second.
1373   animator->StartTogether(
1374       CreateMultiSequence(
1375           LayerAnimationElement::CreateGrayscaleElement(start_grayscale, delta),
1376           LayerAnimationElement::CreateBrightnessElement(start_brightness,
1377                                                          delta)));
1378
1379   EXPECT_TRUE(animator->is_animating());
1380   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), middle_grayscale);
1381   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1382
1383   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1384
1385   EXPECT_TRUE(animator->is_animating());
1386   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), target_grayscale);
1387   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
1388
1389   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
1390
1391   EXPECT_TRUE(animator->is_animating());
1392   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), middle_grayscale);
1393   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), middle_brightness);
1394
1395   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
1396
1397   EXPECT_FALSE(animator->is_animating());
1398   EXPECT_FLOAT_EQ(delegate.GetGrayscaleForAnimation(), start_grayscale);
1399   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1400 }
1401 //-------------------------------------------------------
1402 // Test that non-threaded cyclic sequences continue to animate.
1403 TEST(LayerAnimatorTest, CyclicSequences) {
1404   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1405   animator->set_disable_timer_for_test(true);
1406   TestLayerAnimationDelegate delegate;
1407   animator->SetDelegate(&delegate);
1408
1409   double start_brightness(0.0);
1410   double target_brightness(1.0);
1411
1412   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1413
1414   delegate.SetBrightnessFromAnimation(start_brightness);
1415
1416   scoped_ptr<LayerAnimationSequence> sequence(
1417       new LayerAnimationSequence(
1418           LayerAnimationElement::CreateBrightnessElement(target_brightness,
1419                                                          delta)));
1420
1421   sequence->AddElement(
1422       LayerAnimationElement::CreateBrightnessElement(start_brightness, delta));
1423
1424   sequence->set_is_cyclic(true);
1425
1426   animator->StartAnimation(sequence.release());
1427
1428   base::TimeTicks start_time = animator->last_step_time();
1429
1430   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1431
1432   EXPECT_TRUE(animator->is_animating());
1433   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
1434
1435   animator->Step(start_time + base::TimeDelta::FromMilliseconds(2000));
1436
1437   EXPECT_TRUE(animator->is_animating());
1438   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1439
1440   animator->Step(start_time + base::TimeDelta::FromMilliseconds(3000));
1441
1442   EXPECT_TRUE(animator->is_animating());
1443   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
1444
1445   // Skip ahead by a lot.
1446   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000000000));
1447
1448   EXPECT_TRUE(animator->is_animating());
1449   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), start_brightness);
1450
1451   // Skip ahead by a lot.
1452   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000001000));
1453
1454   EXPECT_TRUE(animator->is_animating());
1455   EXPECT_FLOAT_EQ(delegate.GetBrightnessForAnimation(), target_brightness);
1456
1457   animator->StopAnimatingProperty(LayerAnimationElement::BRIGHTNESS);
1458
1459   EXPECT_FALSE(animator->is_animating());
1460 }
1461
1462 // Test that threaded cyclic sequences continue to animate.
1463 TEST(LayerAnimatorTest, ThreadedCyclicSequences) {
1464   LayerAnimatorTestController test_controller(
1465       LayerAnimator::CreateDefaultAnimator());
1466   LayerAnimator* animator = test_controller.animator();
1467   test_controller.animator()->set_disable_timer_for_test(true);
1468   TestLayerAnimationDelegate delegate;
1469   test_controller.animator()->SetDelegate(&delegate);
1470
1471   double start_opacity(0.0);
1472   double target_opacity(1.0);
1473
1474   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1475
1476   delegate.SetOpacityFromAnimation(start_opacity);
1477
1478   scoped_ptr<LayerAnimationSequence> sequence(
1479       new LayerAnimationSequence(
1480           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
1481
1482   sequence->AddElement(
1483       LayerAnimationElement::CreateOpacityElement(start_opacity, delta));
1484
1485   sequence->set_is_cyclic(true);
1486
1487   test_controller.animator()->StartAnimation(sequence.release());
1488
1489   base::TimeTicks start_time = test_controller.animator()->last_step_time();
1490   base::TimeTicks effective_start = start_time + delta;
1491
1492   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1493       cc::AnimationEvent::Started,
1494       0,
1495       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1496           ->animation_group_id(),
1497       cc::Animation::Opacity,
1498       effective_start));
1499
1500   animator->Step(effective_start + delta);
1501   EXPECT_TRUE(test_controller.animator()->is_animating());
1502   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), target_opacity);
1503
1504   base::TimeTicks second_effective_start = effective_start + 2 * delta;
1505   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1506       cc::AnimationEvent::Started,
1507       0,
1508       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1509           ->animation_group_id(),
1510       cc::Animation::Opacity,
1511       second_effective_start));
1512
1513   animator->Step(second_effective_start + delta);
1514
1515   EXPECT_TRUE(test_controller.animator()->is_animating());
1516   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
1517
1518   base::TimeTicks third_effective_start = second_effective_start + 2 * delta;
1519   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1520       cc::AnimationEvent::Started,
1521       0,
1522       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1523           ->animation_group_id(),
1524       cc::Animation::Opacity,
1525       third_effective_start));
1526
1527   animator->Step(third_effective_start + delta);
1528   EXPECT_TRUE(test_controller.animator()->is_animating());
1529   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), target_opacity);
1530
1531   base::TimeTicks fourth_effective_start = third_effective_start + 2 * delta;
1532   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1533       cc::AnimationEvent::Started,
1534       0,
1535       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1536           ->animation_group_id(),
1537       cc::Animation::Opacity,
1538       fourth_effective_start));
1539
1540   // Skip ahead by a lot.
1541   animator->Step(fourth_effective_start + 1000 * delta);
1542
1543   EXPECT_TRUE(test_controller.animator()->is_animating());
1544   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), target_opacity);
1545
1546   base::TimeTicks fifth_effective_start = fourth_effective_start + 1001 * delta;
1547   test_controller.animator()->OnThreadedAnimationStarted(cc::AnimationEvent(
1548       cc::AnimationEvent::Started,
1549       0,
1550       test_controller.GetRunningSequence(LayerAnimationElement::OPACITY)
1551           ->animation_group_id(),
1552       cc::Animation::Opacity,
1553       fifth_effective_start));
1554
1555   // Skip ahead by a lot.
1556   animator->Step(fifth_effective_start + 999 * delta);
1557
1558   EXPECT_TRUE(test_controller.animator()->is_animating());
1559   EXPECT_FLOAT_EQ(delegate.GetOpacityForAnimation(), start_opacity);
1560
1561   test_controller.animator()->StopAnimatingProperty(
1562       LayerAnimationElement::OPACITY);
1563
1564   EXPECT_FALSE(test_controller.animator()->is_animating());
1565 }
1566
1567 TEST(LayerAnimatorTest, AddObserverExplicit) {
1568   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1569   animator->set_disable_timer_for_test(true);
1570   TestLayerAnimationObserver observer;
1571   TestLayerAnimationDelegate delegate;
1572   animator->SetDelegate(&delegate);
1573   animator->AddObserver(&observer);
1574   observer.set_requires_notification_when_animator_destroyed(true);
1575
1576   EXPECT_TRUE(!observer.last_ended_sequence());
1577
1578   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1579
1580   delegate.SetBrightnessFromAnimation(0.0f);
1581
1582   LayerAnimationSequence* sequence = new LayerAnimationSequence(
1583       LayerAnimationElement::CreateBrightnessElement(1.0f, delta));
1584
1585   animator->StartAnimation(sequence);
1586
1587   EXPECT_EQ(observer.last_scheduled_sequence(), sequence);
1588
1589   base::TimeTicks start_time = animator->last_step_time();
1590
1591   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1592
1593   EXPECT_EQ(observer.last_ended_sequence(), sequence);
1594
1595   // |sequence| has been destroyed. Recreate it to test abort.
1596   sequence = new LayerAnimationSequence(
1597       LayerAnimationElement::CreateBrightnessElement(1.0f, delta));
1598
1599   animator->StartAnimation(sequence);
1600
1601   animator = NULL;
1602
1603   EXPECT_EQ(observer.last_aborted_sequence(), sequence);
1604 }
1605
1606 // Tests that an observer added to a scoped settings object is still notified
1607 // when the object goes out of scope.
1608 TEST(LayerAnimatorTest, ImplicitAnimationObservers) {
1609   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1610   animator->set_disable_timer_for_test(true);
1611   TestImplicitAnimationObserver observer(false);
1612   TestLayerAnimationDelegate delegate;
1613   animator->SetDelegate(&delegate);
1614
1615   EXPECT_FALSE(observer.animations_completed());
1616   animator->SetBrightness(1.0f);
1617
1618   {
1619     ScopedLayerAnimationSettings settings(animator.get());
1620     settings.AddObserver(&observer);
1621     animator->SetBrightness(0.0f);
1622   }
1623
1624   EXPECT_FALSE(observer.animations_completed());
1625   base::TimeTicks start_time = animator->last_step_time();
1626   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1627   EXPECT_TRUE(observer.animations_completed());
1628   EXPECT_TRUE(observer.WasAnimationCompletedForProperty(
1629       LayerAnimationElement::BRIGHTNESS));
1630   EXPECT_FLOAT_EQ(0.0f, delegate.GetBrightnessForAnimation());
1631 }
1632
1633 // Tests that an observer added to a scoped settings object is still notified
1634 // when the object goes out of scope due to the animation being interrupted.
1635 TEST(LayerAnimatorTest, InterruptedImplicitAnimationObservers) {
1636   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1637   animator->set_disable_timer_for_test(true);
1638   TestImplicitAnimationObserver observer(false);
1639   TestLayerAnimationDelegate delegate;
1640   animator->SetDelegate(&delegate);
1641
1642   EXPECT_FALSE(observer.animations_completed());
1643   animator->SetBrightness(1.0f);
1644
1645   {
1646     ScopedLayerAnimationSettings settings(animator.get());
1647     settings.AddObserver(&observer);
1648     animator->SetBrightness(0.0f);
1649   }
1650
1651   EXPECT_FALSE(observer.animations_completed());
1652   // This should interrupt the implicit animation causing the observer to be
1653   // notified immediately.
1654   animator->SetBrightness(1.0f);
1655   EXPECT_TRUE(observer.animations_completed());
1656   EXPECT_TRUE(observer.WasAnimationCompletedForProperty(
1657       LayerAnimationElement::BRIGHTNESS));
1658   EXPECT_FLOAT_EQ(1.0f, delegate.GetBrightnessForAnimation());
1659 }
1660
1661 // Tests that LayerAnimator is not deleted after the animation completes as long
1662 // as there is a live ScopedLayerAnimationSettings object wrapped around it.
1663 TEST(LayerAnimatorTest, AnimatorKeptAliveBySettings) {
1664   // Note we are using a raw pointer unlike in other tests.
1665   TestLayerAnimator* animator = new TestLayerAnimator();
1666   LayerAnimatorDestructionObserver destruction_observer;
1667   animator->SetDestructionObserver(&destruction_observer);
1668   animator->set_disable_timer_for_test(true);
1669   TestLayerAnimationDelegate delegate;
1670   animator->SetDelegate(&delegate);
1671   {
1672     // ScopedLayerAnimationSettings should keep the Animator alive as long as
1673     // it is alive, even beyond the end of the animation.
1674     ScopedLayerAnimationSettings settings(animator);
1675     base::TimeTicks now = gfx::FrameTime::Now();
1676     animator->SetBrightness(0.5);
1677     animator->Step(now + base::TimeDelta::FromSeconds(1));
1678     EXPECT_FALSE(destruction_observer.IsAnimatorDeleted());
1679   }
1680   // ScopedLayerAnimationSettings was destroyed, so Animator should be deleted.
1681   EXPECT_TRUE(destruction_observer.IsAnimatorDeleted());
1682 }
1683
1684 // Tests that an observer added to a scoped settings object is not notified
1685 // when the animator is destroyed unless explicitly requested.
1686 TEST(LayerAnimatorTest, ImplicitObserversAtAnimatorDestruction) {
1687   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1688   animator->set_disable_timer_for_test(true);
1689   TestImplicitAnimationObserver observer_notify(true);
1690   TestImplicitAnimationObserver observer_do_not_notify(false);
1691   TestLayerAnimationDelegate delegate;
1692   animator->SetDelegate(&delegate);
1693
1694   EXPECT_FALSE(observer_notify.animations_completed());
1695   EXPECT_FALSE(observer_do_not_notify.animations_completed());
1696
1697   animator->SetBrightness(1.0f);
1698
1699   {
1700     ScopedLayerAnimationSettings settings(animator.get());
1701     settings.AddObserver(&observer_notify);
1702     settings.AddObserver(&observer_do_not_notify);
1703     animator->SetBrightness(0.0f);
1704   }
1705
1706   EXPECT_FALSE(observer_notify.animations_completed());
1707   EXPECT_FALSE(observer_do_not_notify.animations_completed());
1708   animator = NULL;
1709   EXPECT_TRUE(observer_notify.animations_completed());
1710   EXPECT_TRUE(observer_notify.WasAnimationAbortedForProperty(
1711       LayerAnimationElement::BRIGHTNESS));
1712   EXPECT_FALSE(observer_do_not_notify.animations_completed());
1713 }
1714
1715 TEST(LayerAnimatorTest, AbortedAnimationStatusInImplicitObservers) {
1716   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1717   animator->set_disable_timer_for_test(true);
1718   TestImplicitAnimationObserver observer(false);
1719   TestLayerAnimationDelegate delegate;
1720   animator->SetDelegate(&delegate);
1721
1722   EXPECT_FALSE(observer.animations_completed());
1723   animator->SetBrightness(1.0f);
1724
1725   {
1726     ScopedLayerAnimationSettings settings(animator.get());
1727     settings.AddObserver(&observer);
1728     animator->SetBrightness(0.0f);
1729   }
1730   EXPECT_FALSE(observer.animations_completed());
1731
1732   animator->AbortAllAnimations();
1733   EXPECT_TRUE(observer.animations_completed());
1734   EXPECT_TRUE(observer.WasAnimationAbortedForProperty(
1735       LayerAnimationElement::BRIGHTNESS));
1736   EXPECT_FALSE(observer.WasAnimationAbortedForProperty(
1737       LayerAnimationElement::OPACITY));
1738
1739   observer.set_animations_completed(false);
1740   {
1741     ScopedLayerAnimationSettings settings(animator.get());
1742     settings.AddObserver(&observer);
1743     animator->SetOpacity(0.0f);
1744   }
1745   EXPECT_FALSE(observer.animations_completed());
1746
1747   animator->AbortAllAnimations();
1748   EXPECT_TRUE(observer.animations_completed());
1749   EXPECT_TRUE(observer.WasAnimationAbortedForProperty(
1750       LayerAnimationElement::BRIGHTNESS));
1751   EXPECT_TRUE(observer.WasAnimationAbortedForProperty(
1752       LayerAnimationElement::OPACITY));
1753 }
1754
1755 TEST(LayerAnimatorTest, RemoveObserverShouldRemoveFromSequences) {
1756   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1757   animator->set_disable_timer_for_test(true);
1758   TestLayerAnimationObserver observer;
1759   TestLayerAnimationObserver removed_observer;
1760   TestLayerAnimationDelegate delegate;
1761   animator->SetDelegate(&delegate);
1762
1763   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1764
1765   LayerAnimationSequence* sequence = new LayerAnimationSequence(
1766       LayerAnimationElement::CreateBrightnessElement(1.0f, delta));
1767
1768   sequence->AddObserver(&observer);
1769   sequence->AddObserver(&removed_observer);
1770
1771   animator->StartAnimation(sequence);
1772
1773   EXPECT_EQ(observer.last_scheduled_sequence(), sequence);
1774   EXPECT_TRUE(!observer.last_ended_sequence());
1775   EXPECT_EQ(removed_observer.last_scheduled_sequence(), sequence);
1776   EXPECT_TRUE(!removed_observer.last_ended_sequence());
1777
1778   // This should stop the observer from observing sequence.
1779   animator->RemoveObserver(&removed_observer);
1780
1781   base::TimeTicks start_time = animator->last_step_time();
1782
1783   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1784
1785   EXPECT_EQ(observer.last_ended_sequence(), sequence);
1786   EXPECT_TRUE(!removed_observer.last_ended_sequence());
1787 }
1788
1789 TEST(LayerAnimatorTest, ObserverReleasedBeforeAnimationSequenceEnds) {
1790   TestLayerAnimationDelegate delegate;
1791   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1792   animator->set_disable_timer_for_test(true);
1793
1794   scoped_ptr<TestLayerAnimationObserver> observer(
1795       new TestLayerAnimationObserver);
1796   animator->SetDelegate(&delegate);
1797   animator->AddObserver(observer.get());
1798
1799   delegate.SetOpacityFromAnimation(0.0f);
1800
1801   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1802   LayerAnimationSequence* sequence = new LayerAnimationSequence(
1803       LayerAnimationElement::CreateOpacityElement(1.0f, delta));
1804
1805   animator->StartAnimation(sequence);
1806
1807   // |observer| should be attached to |sequence|.
1808   EXPECT_TRUE(sequence->observers_.might_have_observers());
1809
1810   // Now, release |observer|
1811   observer.reset();
1812
1813   // And |sequence| should no longer be attached to |observer|.
1814   EXPECT_FALSE(sequence->observers_.might_have_observers());
1815 }
1816
1817 TEST(LayerAnimatorTest, ObserverAttachedAfterAnimationStarted) {
1818   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1819   animator->set_disable_timer_for_test(true);
1820
1821   TestImplicitAnimationObserver observer(false);
1822   TestLayerAnimationDelegate delegate;
1823   animator->SetDelegate(&delegate);
1824
1825   delegate.SetBrightnessFromAnimation(0.0f);
1826
1827   {
1828     ScopedLayerAnimationSettings setter(animator.get());
1829
1830     base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1831     LayerAnimationSequence* sequence = new LayerAnimationSequence(
1832         LayerAnimationElement::CreateBrightnessElement(1.0f, delta));
1833
1834     animator->StartAnimation(sequence);
1835     base::TimeTicks start_time = animator->last_step_time();
1836     animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
1837
1838     setter.AddObserver(&observer);
1839
1840     // Start observing an in-flight animation.
1841     sequence->AddObserver(&observer);
1842
1843     animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
1844   }
1845
1846   EXPECT_TRUE(observer.animations_completed());
1847   EXPECT_TRUE(observer.WasAnimationCompletedForProperty(
1848                   LayerAnimationElement::BRIGHTNESS));
1849 }
1850
1851 TEST(LayerAnimatorTest, ObserverDetachedBeforeAnimationFinished) {
1852   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
1853   animator->set_disable_timer_for_test(true);
1854
1855   TestImplicitAnimationObserver observer(false);
1856   TestLayerAnimationDelegate delegate;
1857   animator->SetDelegate(&delegate);
1858
1859   delegate.SetBrightnessFromAnimation(0.0f);
1860   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
1861   LayerAnimationSequence* sequence = new LayerAnimationSequence(
1862       LayerAnimationElement::CreateBrightnessElement(1.0f, delta));
1863
1864   {
1865     ScopedLayerAnimationSettings setter(animator.get());
1866     setter.AddObserver(&observer);
1867
1868     animator->StartAnimation(sequence);
1869     base::TimeTicks start_time = animator->last_step_time();
1870     animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
1871   }
1872
1873   EXPECT_FALSE(observer.animations_completed());
1874
1875   // Stop observing an in-flight animation.
1876   sequence->RemoveObserver(&observer);
1877
1878   EXPECT_TRUE(observer.animations_completed());
1879
1880   // The animation didn't complete, and neither was it aborted.
1881   EXPECT_FALSE(observer.WasAnimationCompletedForProperty(
1882                   LayerAnimationElement::BRIGHTNESS));
1883   EXPECT_FALSE(observer.WasAnimationAbortedForProperty(
1884                   LayerAnimationElement::BRIGHTNESS));
1885 }
1886
1887 // This checks that if an animation is deleted due to a callback, that the
1888 // animator does not try to use the deleted animation. For example, if we have
1889 // two running animations, and the first finishes and the resulting callback
1890 // causes the second to be deleted, we should not attempt to animate the second
1891 // animation.
1892 TEST(LayerAnimatorTest, ObserverDeletesAnimationsOnEnd) {
1893   ScopedAnimationDurationScaleMode normal_duration_mode(
1894       ScopedAnimationDurationScaleMode::NORMAL_DURATION);
1895   scoped_refptr<LayerAnimator> animator(new TestLayerAnimator());
1896   animator->set_disable_timer_for_test(true);
1897   TestLayerAnimationDelegate delegate;
1898   animator->SetDelegate(&delegate);
1899
1900   double start_brightness(0.0);
1901   double target_brightness(1.0);
1902
1903   gfx::Rect start_bounds(0, 0, 50, 50);
1904   gfx::Rect target_bounds(5, 5, 5, 5);
1905
1906   delegate.SetBrightnessFromAnimation(start_brightness);
1907   delegate.SetBoundsFromAnimation(start_bounds);
1908
1909   base::TimeDelta brightness_delta = base::TimeDelta::FromSeconds(1);
1910   base::TimeDelta halfway_delta = base::TimeDelta::FromSeconds(2);
1911   base::TimeDelta bounds_delta = base::TimeDelta::FromSeconds(3);
1912
1913   scoped_ptr<DeletingLayerAnimationObserver> observer(
1914       new DeletingLayerAnimationObserver(animator.get()));
1915
1916   animator->AddObserver(observer.get());
1917
1918   animator->StartAnimation(
1919       new LayerAnimationSequence(
1920           LayerAnimationElement::CreateBrightnessElement(
1921               target_brightness, brightness_delta)));
1922
1923   animator->StartAnimation(new LayerAnimationSequence(
1924       LayerAnimationElement::CreateBoundsElement(
1925           target_bounds, bounds_delta)));
1926   ASSERT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
1927
1928   base::TimeTicks start_time = animator->last_step_time();
1929   animator->Step(start_time + halfway_delta);
1930
1931   // Completing the brightness animation should have stopped the bounds
1932   // animation.
1933   ASSERT_FALSE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
1934
1935   animator->RemoveObserver(observer.get());
1936 }
1937
1938 // Ensure that stopping animation in a bounds change does not crash and that
1939 // animation gets stopped correctly.
1940 // This scenario is possible when animation is restarted from inside a
1941 // callback triggered by the animation progress.
1942 TEST(LayerAnimatorTest, CallbackDeletesAnimationInProgress) {
1943
1944   class TestLayerAnimationDeletingDelegate : public TestLayerAnimationDelegate {
1945    public:
1946     TestLayerAnimationDeletingDelegate(LayerAnimator* animator, int max_width)
1947       : animator_(animator),
1948         max_width_(max_width) {
1949     }
1950
1951     virtual void SetBoundsFromAnimation(const gfx::Rect& bounds) OVERRIDE {
1952       TestLayerAnimationDelegate::SetBoundsFromAnimation(bounds);
1953       if (bounds.width() > max_width_)
1954         animator_->StopAnimating();
1955     }
1956    private:
1957     LayerAnimator* animator_;
1958     int max_width_;
1959     // Allow copy and assign.
1960   };
1961
1962   ScopedAnimationDurationScaleMode normal_duration_mode(
1963       ScopedAnimationDurationScaleMode::NORMAL_DURATION);
1964   scoped_refptr<LayerAnimator> animator(new TestLayerAnimator());
1965   animator->set_disable_timer_for_test(true);
1966   TestLayerAnimationDeletingDelegate delegate(animator.get(), 30);
1967   animator->SetDelegate(&delegate);
1968
1969   gfx::Rect start_bounds(0, 0, 0, 0);
1970   gfx::Rect target_bounds(5, 5, 50, 50);
1971
1972   delegate.SetBoundsFromAnimation(start_bounds);
1973
1974   base::TimeDelta bounds_delta1 = base::TimeDelta::FromMilliseconds(333);
1975   base::TimeDelta bounds_delta2 = base::TimeDelta::FromMilliseconds(666);
1976   base::TimeDelta bounds_delta = base::TimeDelta::FromMilliseconds(1000);
1977   base::TimeDelta final_delta = base::TimeDelta::FromMilliseconds(1500);
1978
1979   animator->StartAnimation(new LayerAnimationSequence(
1980       LayerAnimationElement::CreateBoundsElement(
1981           target_bounds, bounds_delta)));
1982   ASSERT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
1983
1984   base::TimeTicks start_time = animator->last_step_time();
1985   ASSERT_NO_FATAL_FAILURE(animator->Step(start_time + bounds_delta1));
1986   ASSERT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
1987
1988   // The next step should change the animated bounds past the threshold and
1989   // cause the animaton to stop.
1990   ASSERT_NO_FATAL_FAILURE(animator->Step(start_time + bounds_delta2));
1991   ASSERT_FALSE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
1992   ASSERT_NO_FATAL_FAILURE(animator->Step(start_time + final_delta));
1993
1994   // Completing the animation should have stopped the bounds
1995   // animation.
1996   ASSERT_FALSE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
1997 }
1998
1999 // Similar to the ObserverDeletesAnimationsOnEnd test above except that it
2000 // tests the behavior when the OnLayerAnimationAborted() callback causes
2001 // all of the animator's other animations to be deleted.
2002 TEST(LayerAnimatorTest, ObserverDeletesAnimationsOnAbort) {
2003   ScopedAnimationDurationScaleMode test_duration_mode(
2004       ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);
2005   scoped_refptr<LayerAnimator> animator(new TestLayerAnimator());
2006   animator->set_disable_timer_for_test(true);
2007   TestLayerAnimationDelegate delegate;
2008   animator->SetDelegate(&delegate);
2009
2010   double start_brightness(0.0);
2011   double target_brightness(1.0);
2012   gfx::Rect start_bounds(0, 0, 50, 50);
2013   gfx::Rect target_bounds(5, 5, 5, 5);
2014   base::TimeDelta brightness_delta = base::TimeDelta::FromSeconds(1);
2015   base::TimeDelta bounds_delta = base::TimeDelta::FromSeconds(2);
2016
2017   delegate.SetBrightnessFromAnimation(start_brightness);
2018   delegate.SetBoundsFromAnimation(start_bounds);
2019
2020   scoped_ptr<DeletingLayerAnimationObserver> observer(
2021       new DeletingLayerAnimationObserver(animator.get()));
2022   animator->AddObserver(observer.get());
2023
2024   animator->StartAnimation(
2025       new LayerAnimationSequence(
2026           LayerAnimationElement::CreateBrightnessElement(
2027               target_brightness, brightness_delta)));
2028   animator->StartAnimation(new LayerAnimationSequence(
2029       LayerAnimationElement::CreateBoundsElement(
2030           target_bounds, bounds_delta)));
2031   ASSERT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
2032
2033   animator->set_preemption_strategy(
2034       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
2035   animator->StartAnimation(
2036       new LayerAnimationSequence(
2037           LayerAnimationElement::CreateBrightnessElement(
2038               target_brightness, brightness_delta)));
2039
2040   // Starting the second brightness animation should have aborted the initial
2041   // brightness animation. |observer| should have stopped the bounds animation
2042   // as a result.
2043   ASSERT_FALSE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
2044
2045   animator->RemoveObserver(observer.get());
2046 }
2047
2048 // Check that setting a property during an animation with a default animator
2049 // cancels the original animation.
2050 TEST(LayerAnimatorTest, SettingPropertyDuringAnAnimation) {
2051   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2052   animator->set_disable_timer_for_test(true);
2053   TestLayerAnimationDelegate delegate;
2054   animator->SetDelegate(&delegate);
2055
2056   double start_opacity(0.0);
2057   double target_opacity(1.0);
2058
2059   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2060
2061   delegate.SetOpacityFromAnimation(start_opacity);
2062
2063   scoped_ptr<LayerAnimationSequence> sequence(
2064       new LayerAnimationSequence(
2065           LayerAnimationElement::CreateOpacityElement(target_opacity, delta)));
2066
2067   animator->StartAnimation(sequence.release());
2068
2069   animator->SetOpacity(0.5);
2070
2071   EXPECT_FALSE(animator->is_animating());
2072   EXPECT_EQ(0.5, animator->GetTargetOpacity());
2073 }
2074
2075 // Tests that the preemption mode IMMEDIATELY_SET_NEW_TARGET, doesn't cause the
2076 // second sequence to be leaked.
2077 TEST(LayerAnimatorTest, ImmediatelySettingNewTargetDoesNotLeak) {
2078   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2079   animator->set_preemption_strategy(LayerAnimator::IMMEDIATELY_SET_NEW_TARGET);
2080   animator->set_disable_timer_for_test(true);
2081   TestLayerAnimationDelegate delegate;
2082   animator->SetDelegate(&delegate);
2083
2084   gfx::Rect start_bounds(0, 0, 50, 50);
2085   gfx::Rect middle_bounds(10, 10, 100, 100);
2086   gfx::Rect target_bounds(5, 5, 5, 5);
2087
2088   delegate.SetBoundsFromAnimation(start_bounds);
2089
2090   {
2091     // start an implicit bounds animation.
2092     ScopedLayerAnimationSettings settings(animator.get());
2093     animator->SetBounds(middle_bounds);
2094   }
2095
2096   EXPECT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
2097
2098   int num_live_instances = 0;
2099   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2100   scoped_ptr<TestLayerAnimationSequence> sequence(
2101       new TestLayerAnimationSequence(
2102           LayerAnimationElement::CreateBoundsElement(target_bounds, delta),
2103           &num_live_instances));
2104
2105   EXPECT_EQ(1, num_live_instances);
2106
2107   // This should interrupt the running sequence causing us to immediately set
2108   // the target value. The sequence should alse be destructed.
2109   animator->StartAnimation(sequence.release());
2110
2111   EXPECT_FALSE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
2112   EXPECT_EQ(0, num_live_instances);
2113   CheckApproximatelyEqual(delegate.GetBoundsForAnimation(), target_bounds);
2114 }
2115
2116 // Verifies GetTargetOpacity() works when multiple sequences are scheduled.
2117 TEST(LayerAnimatorTest, GetTargetOpacity) {
2118   TestLayerAnimationDelegate delegate;
2119   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2120   animator->set_preemption_strategy(LayerAnimator::ENQUEUE_NEW_ANIMATION);
2121   animator->set_disable_timer_for_test(true);
2122   animator->SetDelegate(&delegate);
2123
2124   delegate.SetOpacityFromAnimation(0.0);
2125
2126   {
2127     ScopedLayerAnimationSettings settings(animator.get());
2128     animator->SetOpacity(0.5);
2129     EXPECT_EQ(0.5, animator->GetTargetOpacity());
2130
2131     // Because the strategy is ENQUEUE_NEW_ANIMATION the target should now be 1.
2132     animator->SetOpacity(1.0);
2133     EXPECT_EQ(1.0, animator->GetTargetOpacity());
2134   }
2135 }
2136
2137 // Verifies GetTargetBrightness() works when multiple sequences are scheduled.
2138 TEST(LayerAnimatorTest, GetTargetBrightness) {
2139   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2140   animator->set_preemption_strategy(LayerAnimator::ENQUEUE_NEW_ANIMATION);
2141   animator->set_disable_timer_for_test(true);
2142   TestLayerAnimationDelegate delegate;
2143   animator->SetDelegate(&delegate);
2144
2145   delegate.SetBrightnessFromAnimation(0.0);
2146
2147   {
2148     ScopedLayerAnimationSettings settings(animator.get());
2149     animator->SetBrightness(0.5);
2150     EXPECT_EQ(0.5, animator->GetTargetBrightness());
2151
2152     // Because the strategy is ENQUEUE_NEW_ANIMATION the target should now be 1.
2153     animator->SetBrightness(1.0);
2154     EXPECT_EQ(1.0, animator->GetTargetBrightness());
2155   }
2156 }
2157
2158 // Verifies GetTargetGrayscale() works when multiple sequences are scheduled.
2159 TEST(LayerAnimatorTest, GetTargetGrayscale) {
2160   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2161   animator->set_preemption_strategy(LayerAnimator::ENQUEUE_NEW_ANIMATION);
2162   animator->set_disable_timer_for_test(true);
2163   TestLayerAnimationDelegate delegate;
2164   animator->SetDelegate(&delegate);
2165
2166   delegate.SetGrayscaleFromAnimation(0.0);
2167
2168   {
2169     ScopedLayerAnimationSettings settings(animator.get());
2170     animator->SetGrayscale(0.5);
2171     EXPECT_EQ(0.5, animator->GetTargetGrayscale());
2172
2173     // Because the strategy is ENQUEUE_NEW_ANIMATION the target should now be 1.
2174     animator->SetGrayscale(1.0);
2175     EXPECT_EQ(1.0, animator->GetTargetGrayscale());
2176   }
2177 }
2178
2179 // Verifies color property is modified appropriately.
2180 TEST(LayerAnimatorTest, Color) {
2181   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2182   animator->set_disable_timer_for_test(true);
2183   TestLayerAnimationDelegate delegate;
2184   animator->SetDelegate(&delegate);
2185
2186   SkColor start_color  = SkColorSetARGB( 64, 20, 40,  60);
2187   SkColor middle_color = SkColorSetARGB(128, 35, 70, 120);
2188   SkColor target_color = SkColorSetARGB(192, 40, 80, 140);
2189
2190   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2191
2192   delegate.SetColorFromAnimation(start_color);
2193
2194   animator->ScheduleAnimation(
2195       new LayerAnimationSequence(
2196           LayerAnimationElement::CreateColorElement(target_color, delta)));
2197
2198   EXPECT_TRUE(animator->is_animating());
2199   EXPECT_EQ(ColorToString(start_color),
2200             ColorToString(delegate.GetColorForAnimation()));
2201
2202   base::TimeTicks start_time = animator->last_step_time();
2203
2204   animator->Step(start_time + base::TimeDelta::FromMilliseconds(500));
2205
2206   EXPECT_TRUE(animator->is_animating());
2207   EXPECT_EQ(ColorToString(middle_color),
2208             ColorToString(delegate.GetColorForAnimation()));
2209
2210   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1000));
2211
2212   EXPECT_FALSE(animator->is_animating());
2213   EXPECT_EQ(ColorToString(target_color),
2214             ColorToString(delegate.GetColorForAnimation()));
2215 }
2216
2217 // Verifies SchedulePauseForProperties().
2218 TEST(LayerAnimatorTest, SchedulePauseForProperties) {
2219   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2220   animator->set_preemption_strategy(LayerAnimator::ENQUEUE_NEW_ANIMATION);
2221   animator->SchedulePauseForProperties(
2222       base::TimeDelta::FromMilliseconds(100),
2223       LayerAnimationElement::TRANSFORM | LayerAnimationElement::BOUNDS);
2224   EXPECT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::TRANSFORM));
2225   EXPECT_TRUE(animator->IsAnimatingProperty(LayerAnimationElement::BOUNDS));
2226   EXPECT_FALSE(animator->IsAnimatingProperty(LayerAnimationElement::OPACITY));
2227 }
2228
2229
2230 class AnimatorOwner {
2231 public:
2232   AnimatorOwner()
2233       : animator_(LayerAnimator::CreateDefaultAnimator()) {
2234   }
2235
2236   LayerAnimator* animator() { return animator_.get(); }
2237
2238 private:
2239   scoped_refptr<LayerAnimator> animator_;
2240
2241   DISALLOW_COPY_AND_ASSIGN(AnimatorOwner);
2242 };
2243
2244 class DeletingObserver : public LayerAnimationObserver {
2245 public:
2246   DeletingObserver(bool* was_deleted)
2247       : animator_owner_(new AnimatorOwner),
2248         delete_on_animation_ended_(false),
2249         delete_on_animation_aborted_(false),
2250         delete_on_animation_scheduled_(false),
2251         was_deleted_(was_deleted) {
2252     animator()->AddObserver(this);
2253   }
2254
2255   virtual ~DeletingObserver() {
2256     animator()->RemoveObserver(this);
2257     *was_deleted_ = true;
2258   }
2259
2260   LayerAnimator* animator() { return animator_owner_->animator(); }
2261
2262   bool delete_on_animation_ended() const {
2263     return delete_on_animation_ended_;
2264   }
2265   void set_delete_on_animation_ended(bool enabled) {
2266     delete_on_animation_ended_ = enabled;
2267   }
2268
2269   bool delete_on_animation_aborted() const {
2270     return delete_on_animation_aborted_;
2271   }
2272   void set_delete_on_animation_aborted(bool enabled) {
2273     delete_on_animation_aborted_ = enabled;
2274   }
2275
2276   bool delete_on_animation_scheduled() const {
2277     return delete_on_animation_scheduled_;
2278   }
2279   void set_delete_on_animation_scheduled(bool enabled) {
2280     delete_on_animation_scheduled_ = enabled;
2281   }
2282
2283   // LayerAnimationObserver implementation.
2284   virtual void OnLayerAnimationEnded(
2285       LayerAnimationSequence* sequence) OVERRIDE {
2286     if (delete_on_animation_ended_)
2287       delete this;
2288   }
2289
2290   virtual void OnLayerAnimationAborted(
2291       LayerAnimationSequence* sequence) OVERRIDE {
2292     if (delete_on_animation_aborted_)
2293       delete this;
2294   }
2295
2296   virtual void OnLayerAnimationScheduled(
2297       LayerAnimationSequence* sequence) OVERRIDE {
2298     if (delete_on_animation_scheduled_)
2299       delete this;
2300   }
2301
2302 private:
2303   scoped_ptr<AnimatorOwner> animator_owner_;
2304   bool delete_on_animation_ended_;
2305   bool delete_on_animation_aborted_;
2306   bool delete_on_animation_scheduled_;
2307   bool* was_deleted_;
2308
2309   DISALLOW_COPY_AND_ASSIGN(DeletingObserver);
2310 };
2311
2312 TEST(LayerAnimatorTest, ObserverDeletesAnimatorAfterFinishingAnimation) {
2313   bool observer_was_deleted = false;
2314   DeletingObserver* observer = new DeletingObserver(&observer_was_deleted);
2315   observer->set_delete_on_animation_ended(true);
2316   observer->set_delete_on_animation_aborted(true);
2317   LayerAnimator* animator = observer->animator();
2318   animator->set_disable_timer_for_test(true);
2319   TestLayerAnimationDelegate delegate;
2320   animator->SetDelegate(&delegate);
2321
2322   delegate.SetBrightnessFromAnimation(0.0f);
2323
2324   gfx::Rect start_bounds(0, 0, 50, 50);
2325   gfx::Rect target_bounds(10, 10, 100, 100);
2326
2327   delegate.SetBoundsFromAnimation(start_bounds);
2328
2329   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2330   LayerAnimationSequence* brightness_sequence = new LayerAnimationSequence(
2331       LayerAnimationElement::CreateBrightnessElement(1.0f, delta));
2332   animator->StartAnimation(brightness_sequence);
2333
2334   delta = base::TimeDelta::FromSeconds(2);
2335   LayerAnimationSequence* bounds_sequence = new LayerAnimationSequence(
2336       LayerAnimationElement::CreateBoundsElement(target_bounds, delta));
2337   animator->StartAnimation(bounds_sequence);
2338
2339   base::TimeTicks start_time = animator->last_step_time();
2340   animator->Step(start_time + base::TimeDelta::FromMilliseconds(1500));
2341
2342   EXPECT_TRUE(observer_was_deleted);
2343 }
2344
2345 TEST(LayerAnimatorTest, ObserverDeletesAnimatorAfterStoppingAnimating) {
2346   bool observer_was_deleted = false;
2347   DeletingObserver* observer = new DeletingObserver(&observer_was_deleted);
2348   observer->set_delete_on_animation_ended(true);
2349   observer->set_delete_on_animation_aborted(true);
2350   LayerAnimator* animator = observer->animator();
2351   animator->set_disable_timer_for_test(true);
2352   TestLayerAnimationDelegate delegate;
2353   animator->SetDelegate(&delegate);
2354
2355   delegate.SetOpacityFromAnimation(0.0f);
2356
2357   gfx::Rect start_bounds(0, 0, 50, 50);
2358   gfx::Rect target_bounds(10, 10, 100, 100);
2359
2360   delegate.SetBoundsFromAnimation(start_bounds);
2361
2362   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2363   LayerAnimationSequence* opacity_sequence = new LayerAnimationSequence(
2364       LayerAnimationElement::CreateOpacityElement(1.0f, delta));
2365   animator->StartAnimation(opacity_sequence);
2366
2367   delta = base::TimeDelta::FromSeconds(2);
2368   LayerAnimationSequence* bounds_sequence = new LayerAnimationSequence(
2369       LayerAnimationElement::CreateBoundsElement(target_bounds, delta));
2370   animator->StartAnimation(bounds_sequence);
2371
2372   animator->StopAnimating();
2373
2374   EXPECT_TRUE(observer_was_deleted);
2375 }
2376
2377 TEST(LayerAnimatorTest, ObserverDeletesAnimatorAfterScheduling) {
2378   bool observer_was_deleted = false;
2379   TestLayerAnimationDelegate delegate;
2380   DeletingObserver* observer = new DeletingObserver(&observer_was_deleted);
2381   observer->set_delete_on_animation_scheduled(true);
2382   LayerAnimator* animator = observer->animator();
2383   animator->set_disable_timer_for_test(true);
2384   animator->SetDelegate(&delegate);
2385
2386   delegate.SetOpacityFromAnimation(0.0f);
2387
2388   gfx::Rect start_bounds(0, 0, 50, 50);
2389   gfx::Rect target_bounds(10, 10, 100, 100);
2390
2391   delegate.SetBoundsFromAnimation(start_bounds);
2392
2393   std::vector<LayerAnimationSequence*> to_start;
2394
2395   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2396   to_start.push_back(new LayerAnimationSequence(
2397       LayerAnimationElement::CreateOpacityElement(1.0f, delta)));
2398
2399   delta = base::TimeDelta::FromSeconds(2);
2400   to_start.push_back(new LayerAnimationSequence(
2401       LayerAnimationElement::CreateBoundsElement(target_bounds, delta)));
2402
2403   animator->ScheduleTogether(to_start);
2404
2405   EXPECT_TRUE(observer_was_deleted);
2406 }
2407
2408 TEST(LayerAnimatorTest, ObserverDeletesAnimatorAfterAborted) {
2409   bool observer_was_deleted = false;
2410   DeletingObserver* observer = new DeletingObserver(&observer_was_deleted);
2411   TestLayerAnimationDelegate delegate;
2412   observer->set_delete_on_animation_aborted(true);
2413   LayerAnimator* animator = observer->animator();
2414   animator->set_preemption_strategy(
2415       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
2416   animator->set_disable_timer_for_test(true);
2417   animator->SetDelegate(&delegate);
2418
2419   delegate.SetOpacityFromAnimation(0.0f);
2420
2421   gfx::Rect start_bounds(0, 0, 50, 50);
2422   gfx::Rect target_bounds(10, 10, 100, 100);
2423
2424   delegate.SetBoundsFromAnimation(start_bounds);
2425
2426   std::vector<LayerAnimationSequence*> to_start;
2427
2428   base::TimeDelta delta = base::TimeDelta::FromSeconds(1);
2429   to_start.push_back(new LayerAnimationSequence(
2430       LayerAnimationElement::CreateOpacityElement(1.0f, delta)));
2431
2432   delta = base::TimeDelta::FromSeconds(2);
2433   to_start.push_back(new LayerAnimationSequence(
2434       LayerAnimationElement::CreateBoundsElement(target_bounds, delta)));
2435
2436   animator->ScheduleTogether(to_start);
2437
2438   EXPECT_FALSE(observer_was_deleted);
2439
2440   animator->StartAnimation(new LayerAnimationSequence(
2441       LayerAnimationElement::CreateOpacityElement(1.0f, delta)));
2442
2443   EXPECT_TRUE(observer_was_deleted);
2444 }
2445
2446
2447 TEST(LayerAnimatorTest, TestSetterRespectEnqueueStrategy) {
2448   TestLayerAnimationDelegate delegate;
2449   scoped_refptr<LayerAnimator> animator(LayerAnimator::CreateDefaultAnimator());
2450   animator->set_disable_timer_for_test(true);
2451
2452   animator->SetDelegate(&delegate);
2453
2454   float start_opacity = 0.0f;
2455   float target_opacity = 1.0f;
2456   float magic_opacity = 0.123f;
2457
2458   delegate.SetOpacityFromAnimation(start_opacity);
2459
2460   ScopedLayerAnimationSettings settings(animator.get());
2461   settings.SetPreemptionStrategy(
2462       LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
2463   settings.SetTransitionDuration(base::TimeDelta::FromSeconds(1));
2464   animator->SetOpacity(target_opacity);
2465
2466   EXPECT_EQ(start_opacity, delegate.GetOpacityForAnimation());
2467
2468   settings.SetPreemptionStrategy(
2469       LayerAnimator::ENQUEUE_NEW_ANIMATION);
2470   settings.SetTransitionDuration(base::TimeDelta());
2471   animator->SetOpacity(magic_opacity);
2472
2473   EXPECT_EQ(start_opacity, delegate.GetOpacityForAnimation());
2474 }
2475
2476 TEST(LayerAnimatorTest, TestScopedCounterAnimation) {
2477   Layer parent, child;
2478   parent.Add(&child);
2479
2480   gfx::Transform parent_begin, parent_end;
2481
2482   parent_end.Scale3d(2.0, 0.5, 1.0);
2483
2484   // Parent animates from identity to the end value. The counter animation will
2485   // start at the end value and animate back to identity.
2486   gfx::Transform child_begin(parent_end);
2487
2488   child.SetTransform(child_begin);
2489   parent.SetTransform(parent_begin);
2490
2491   EXPECT_FALSE(child.GetAnimator()->is_animating());
2492
2493   ScopedLayerAnimationSettings settings(parent.GetAnimator());
2494   settings.SetInverselyAnimatedBaseLayer(&parent);
2495   settings.AddInverselyAnimatedLayer(&child);
2496
2497   parent.SetTransform(parent_end);
2498
2499   EXPECT_TRUE(child.GetAnimator()->is_animating());
2500   EXPECT_TRUE(child.GetTargetTransform().IsIdentity())
2501     << child.GetTargetTransform().ToString();
2502
2503 }
2504
2505 class CollectionLayerAnimationDelegate : public TestLayerAnimationDelegate {
2506  public:
2507   CollectionLayerAnimationDelegate() : collection(NULL) {}
2508   virtual ~CollectionLayerAnimationDelegate() {}
2509
2510   // LayerAnimationDelegate:
2511   virtual LayerAnimatorCollection* GetLayerAnimatorCollection() OVERRIDE {
2512     return &collection;
2513   }
2514
2515  private:
2516   LayerAnimatorCollection collection;
2517 };
2518
2519 TEST(LayerAnimatorTest, LayerAnimatorCollectionTickTime) {
2520   Layer layer;
2521   LayerAnimator* animator = layer.GetAnimator();
2522   CollectionLayerAnimationDelegate delegate;
2523   animator->SetDelegate(&delegate);
2524
2525   LayerAnimatorCollection* collection = delegate.GetLayerAnimatorCollection();
2526   base::TimeTicks null;
2527   collection->OnAnimationStep(null);
2528   EXPECT_TRUE(collection->last_tick_time().is_null());
2529
2530   // Adding an animator to the collection should update the last tick time.
2531   collection->StartAnimator(layer.GetAnimator());
2532   EXPECT_TRUE(collection->HasActiveAnimators());
2533   EXPECT_FALSE(collection->last_tick_time().is_null());
2534
2535   collection->StopAnimator(layer.GetAnimator());
2536   EXPECT_FALSE(collection->HasActiveAnimators());
2537 }
2538
2539 TEST(LayerAnimatorTest, AnimatorStartedCorrectly) {
2540   Layer layer;
2541   LayerAnimatorTestController test_controller(layer.GetAnimator());
2542   LayerAnimator* animator = test_controller.animator();
2543   ASSERT_FALSE(animator->is_started_);
2544
2545   TestLayerAnimationDelegate test_delegate;
2546   animator->SetDelegate(&test_delegate);
2547   double target_opacity = 1.0;
2548   base::TimeDelta time_delta = base::TimeDelta::FromSeconds(1);
2549   animator->ScheduleAnimation(new LayerAnimationSequence(
2550       LayerAnimationElement::CreateOpacityElement(target_opacity, time_delta)));
2551   EXPECT_FALSE(animator->is_started_);
2552
2553   CollectionLayerAnimationDelegate collection_delegate;
2554   animator->SetDelegate(&collection_delegate);
2555   animator->UpdateAnimationState();
2556   EXPECT_TRUE(animator->is_started_);
2557   animator->SetDelegate(NULL);
2558 }
2559
2560 TEST(LayerAnimatorTest, AnimatorRemovedFromCollectionWhenLayerIsDestroyed) {
2561   scoped_ptr<Layer> layer(new Layer(LAYER_TEXTURED));
2562   LayerAnimatorTestController test_controller(layer->GetAnimator());
2563   scoped_refptr<LayerAnimator> animator = test_controller.animator();
2564   CollectionLayerAnimationDelegate collection_delegate;
2565   animator->SetDelegate(&collection_delegate);
2566
2567   double target_opacity = 1.0;
2568   base::TimeDelta time_delta = base::TimeDelta::FromSeconds(1);
2569   animator->ScheduleAnimation(new LayerAnimationSequence(
2570       LayerAnimationElement::CreateOpacityElement(target_opacity, time_delta)));
2571
2572   EXPECT_TRUE(
2573       collection_delegate.GetLayerAnimatorCollection()->HasActiveAnimators());
2574
2575   layer.reset();
2576   EXPECT_EQ(NULL, animator->delegate());
2577   EXPECT_FALSE(
2578       collection_delegate.GetLayerAnimatorCollection()->HasActiveAnimators());
2579 }
2580
2581 TEST(LayerAnimatorTest, LayerMovedBetweenCompositorsDuringAnimation) {
2582   bool enable_pixel_output = false;
2583   ui::ContextFactory* context_factory =
2584       InitializeContextFactoryForTests(enable_pixel_output);
2585   const gfx::Rect bounds(10, 10, 100, 100);
2586   scoped_ptr<TestCompositorHost> host_1(
2587       TestCompositorHost::Create(bounds, context_factory));
2588   scoped_ptr<TestCompositorHost> host_2(
2589       TestCompositorHost::Create(bounds, context_factory));
2590   host_1->Show();
2591   host_2->Show();
2592
2593   Compositor* compositor_1 = host_1->GetCompositor();
2594   Layer root_1;
2595   compositor_1->SetRootLayer(&root_1);
2596
2597   Compositor* compositor_2 = host_2->GetCompositor();
2598   Layer root_2;
2599   compositor_2->SetRootLayer(&root_2);
2600
2601   // Verify that neither compositor has active animators.
2602   EXPECT_FALSE(compositor_1->layer_animator_collection()->HasActiveAnimators());
2603   EXPECT_FALSE(compositor_2->layer_animator_collection()->HasActiveAnimators());
2604
2605   Layer layer;
2606   root_1.Add(&layer);
2607   LayerAnimator* animator = layer.GetAnimator();
2608   double target_opacity = 1.0;
2609   base::TimeDelta time_delta = base::TimeDelta::FromSeconds(1);
2610   animator->ScheduleAnimation(new LayerAnimationSequence(
2611       LayerAnimationElement::CreateOpacityElement(target_opacity, time_delta)));
2612   EXPECT_TRUE(compositor_1->layer_animator_collection()->HasActiveAnimators());
2613   EXPECT_FALSE(compositor_2->layer_animator_collection()->HasActiveAnimators());
2614
2615   root_2.Add(&layer);
2616   EXPECT_FALSE(compositor_1->layer_animator_collection()->HasActiveAnimators());
2617   EXPECT_TRUE(compositor_2->layer_animator_collection()->HasActiveAnimators());
2618   host_2.reset();
2619   host_1.reset();
2620   TerminateContextFactoryForTests();
2621 }
2622
2623 }  // namespace ui