cc: Make animations tick regardless of drawing.

cc/trees/layer_tree_host_unittest_animation.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/animation/timing_function.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/test/fake_content_layer.h"
 #include "cc/test/fake_content_layer_client.h"
 #include "cc/test/layer_tree_test.h"
+#include "cc/trees/layer_tree_impl.h"
 
 namespace cc {
 namespace {
 
 class LayerTreeHostAnimationTest : public LayerTreeTest {
  public:
   virtual void SetupTree() OVERRIDE {
     LayerTreeTest::SetupTree();
     layer_tree_host()->root_layer()->set_layer_animation_delegate(this);
   }
@@ skipping 90 matching lines @@
       : num_animates_(0),
         received_animation_started_notification_(false),
         start_time_(0.0) {
   }
 
   virtual void BeginTest() OVERRIDE {
     PostAddInstantAnimationToMainThread();
   }
 
   virtual void UpdateAnimationState(
-      LayerTreeHostImpl* impl_host,
+      LayerTreeHostImpl* host_impl,
       bool has_unfinished_animation) OVERRIDE {
     if (!num_animates_) {
       // The animation had zero duration so LayerTreeHostImpl should no
       // longer need to animate its layers.
       EXPECT_FALSE(has_unfinished_animation);
       num_animates_++;
       return;
     }
 
     if (received_animation_started_notification_) {
       EXPECT_LT(0.0, start_time_);
+
+      LayerAnimationController* controller_impl =
+          host_impl->active_tree()->root_layer()->layer_animation_controller();
+      Animation* animation_impl =
+          controller_impl->GetAnimation(0, Animation::Opacity);
+      if (animation_impl)
+        controller_impl->RemoveAnimation(animation_impl->id());
+
       EndTest();
     }
   }
 
   virtual void notifyAnimationStarted(double wall_clock_time) OVERRIDE {
     received_animation_started_notification_ = true;
     start_time_ = wall_clock_time;
     if (num_animates_) {
       EXPECT_LT(0.0, start_time_);
+
+      LayerAnimationController* controller =
+          layer_tree_host()->root_layer()->layer_animation_controller();
+      Animation* animation =
+          controller->GetAnimation(0, Animation::Opacity);
+      if (animation)
+        controller->RemoveAnimation(animation->id());
+
       EndTest();
     }
   }
 
   virtual void AfterTest() OVERRIDE {}
 
  private:
   int num_animates_;
   bool received_animation_started_notification_;
   double start_time_;
 };
 
-MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestAddAnimation);
+SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestAddAnimation);
 
 // Add a layer animation to a layer, but continually fail to draw. Confirm that
 // after a while, we do eventually force a draw.
 class LayerTreeHostAnimationTestCheckerboardDoesNotStarveDraws
     : public LayerTreeHostAnimationTest {
  public:
   LayerTreeHostAnimationTestCheckerboardDoesNotStarveDraws()
       : started_animating_(false) {}
 
   virtual void BeginTest() OVERRIDE {
@@ skipping 64 matching lines @@
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestTickAnimationWhileBackgrounded);
 
 // Ensures that animations continue to be ticked when we are backgrounded.
 class LayerTreeHostAnimationTestAddAnimationWithTimingFunction
     : public LayerTreeHostAnimationTest {
  public:
   LayerTreeHostAnimationTestAddAnimationWithTimingFunction() {}
 
+  virtual void SetupTree() OVERRIDE {
+    LayerTreeHostAnimationTest::SetupTree();
+    content_ = FakeContentLayer::Create(&client_);
+    content_->SetBounds(gfx::Size(4, 4));
+    layer_tree_host()->root_layer()->AddChild(content_);
+  }
+
   virtual void BeginTest() OVERRIDE {
-    PostAddAnimationToMainThread(layer_tree_host()->root_layer());
+    PostAddAnimationToMainThread(content_);
   }
 
   virtual void AnimateLayers(
       LayerTreeHostImpl* host_impl,
       base::TimeTicks monotonic_time) OVERRIDE {
     LayerAnimationController* controller =
-        layer_tree_host()->root_layer()->layer_animation_controller();
+        layer_tree_host()->root_layer()->children()[0]->
+        layer_animation_controller();
     Animation* animation =
         controller->GetAnimation(0, Animation::Opacity);
     if (!animation)
       return;
 
     const FloatAnimationCurve* curve =
         animation->curve()->ToFloatAnimationCurve();
     float start_opacity = curve->GetValue(0.0);
     float end_opacity = curve->GetValue(curve->Duration());
     float linearly_interpolated_opacity =
         0.25f * end_opacity + 0.75f * start_opacity;
     double time = curve->Duration() * 0.25;
     // If the linear timing function associated with this animation was not
     // picked up, then the linearly interpolated opacity would be different
     // because of the default ease timing function.
     EXPECT_FLOAT_EQ(linearly_interpolated_opacity, curve->GetValue(time));
 
     LayerAnimationController* controller_impl =
-        host_impl->RootLayer()->layer_animation_controller();
+        host_impl->active_tree()->root_layer()->children()[0]->
+        layer_animation_controller();
     Animation* animation_impl =
         controller_impl->GetAnimation(0, Animation::Opacity);
 
     controller->RemoveAnimation(animation->id());
     controller_impl->RemoveAnimation(animation_impl->id());
     EndTest();
   }
 
   virtual void AfterTest() OVERRIDE {}
+
+  FakeContentLayerClient client_;
+  scoped_refptr<FakeContentLayer> content_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestAddAnimationWithTimingFunction);
 
 // Ensures that main thread animations have their start times synchronized with
 // impl thread animations.
 class LayerTreeHostAnimationTestSynchronizeAnimationStartTimes
     : public LayerTreeHostAnimationTest {
  public:
   LayerTreeHostAnimationTestSynchronizeAnimationStartTimes()
       : main_start_time_(-1.0),
         impl_start_time_(-1.0) {}
 
+  virtual void SetupTree() OVERRIDE {
+    LayerTreeHostAnimationTest::SetupTree();
+    content_ = FakeContentLayer::Create(&client_);
+    content_->SetBounds(gfx::Size(4, 4));
+    content_->set_layer_animation_delegate(this);
+    layer_tree_host()->root_layer()->AddChild(content_);
+  }
+
   virtual void BeginTest() OVERRIDE {
-    PostAddAnimationToMainThread(layer_tree_host()->root_layer());
+    PostAddAnimationToMainThread(content_);
   }
 
   virtual void notifyAnimationStarted(double time) OVERRIDE {
     LayerAnimationController* controller =
-        layer_tree_host()->root_layer()->layer_animation_controller();
+        layer_tree_host()->root_layer()->children()[0]->
+        layer_animation_controller();
     Animation* animation =
         controller->GetAnimation(0, Animation::Opacity);
     main_start_time_ = animation->start_time();
     controller->RemoveAnimation(animation->id());
 
     if (impl_start_time_ > 0.0)
       EndTest();
   }
 
   virtual void UpdateAnimationState(
       LayerTreeHostImpl* impl_host,
       bool has_unfinished_animation) OVERRIDE {
     LayerAnimationController* controller =
-        impl_host->RootLayer()->layer_animation_controller();
+        impl_host->active_tree()->root_layer()->children()[0]->
+        layer_animation_controller();
     Animation* animation =
         controller->GetAnimation(0, Animation::Opacity);
     if (!animation)
       return;
 
     impl_start_time_ = animation->start_time();
     controller->RemoveAnimation(animation->id());
 
     if (main_start_time_ > 0.0)
       EndTest();
   }
 
   virtual void AfterTest() OVERRIDE {
     EXPECT_FLOAT_EQ(impl_start_time_, main_start_time_);
   }
 
  private:
   double main_start_time_;
   double impl_start_time_;
+  FakeContentLayerClient client_;
+  scoped_refptr<FakeContentLayer> content_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestSynchronizeAnimationStartTimes);
 
 // Ensures that notify animation finished is called.
 class LayerTreeHostAnimationTestAnimationFinishedEvents
     : public LayerTreeHostAnimationTest {
  public:
   LayerTreeHostAnimationTestAnimationFinishedEvents() {}
@@ skipping 30 matching lines @@
   virtual void SetupTree() OVERRIDE {
     update_check_layer_->SetOpacity(0.f);
     layer_tree_host()->SetRootLayer(update_check_layer_);
     LayerTreeHostAnimationTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE {
     PostAddAnimationToMainThread(update_check_layer_.get());
   }
 
-  virtual void CommitCompleteOnThread(LayerTreeHostImpl* tree_impl) OVERRIDE {
+  virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
+    LayerAnimationController* controller_impl =
+        host_impl->active_tree()->root_layer()->layer_animation_controller();
+    Animation* animation_impl =
+        controller_impl->GetAnimation(0, Animation::Opacity);
+    controller_impl->RemoveAnimation(animation_impl->id());
     EndTest();
   }
 
   virtual void AfterTest() OVERRIDE {
     // Update() should have been called once, proving that the layer was not
     // skipped.
     EXPECT_EQ(1u, update_check_layer_->update_count());
 
     // clear update_check_layer_ so LayerTreeHost dies.
     update_check_layer_ = NULL;
   }
 
  private:
   FakeContentLayerClient client_;
   scoped_refptr<FakeContentLayer> update_check_layer_;
 };
 
-MULTI_THREAD_TEST_F(
+SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestDoNotSkipLayersWithAnimatedOpacity);
 
 // Layers added to tree with existing active animations should have the
 // animation correctly recognized.
 class LayerTreeHostAnimationTestLayerAddedWithAnimation
     : public LayerTreeHostAnimationTest {
  public:
   LayerTreeHostAnimationTestLayerAddedWithAnimation() {}
 
   virtual void BeginTest() OVERRIDE {
@@ skipping 117 matching lines @@
     EXPECT_EQ(1, num_commit_complete_);
   }
 
  private:
   int num_commit_complete_;
   int num_draw_layers_;
 };
 
 MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestContinuousAnimate);
 
+// Make sure the main thread can still execute animations when CanDraw() is not
+// true.
+class LayerTreeHostAnimationTestRunAnimationWhenNotCanDraw
+    : public LayerTreeHostAnimationTest {
+ public:
+  LayerTreeHostAnimationTestRunAnimationWhenNotCanDraw() : started_times_(0) {}
+
+  virtual void SetupTree() OVERRIDE {
+    LayerTreeHostAnimationTest::SetupTree();
+    content_ = FakeContentLayer::Create(&client_);
+    content_->SetBounds(gfx::Size(4, 4));
+    content_->set_layer_animation_delegate(this);
+    layer_tree_host()->root_layer()->AddChild(content_);
+  }
+
+  virtual void BeginTest() OVERRIDE {
+    layer_tree_host()->SetViewportSize(gfx::Size(), gfx::Size());
+    PostAddAnimationToMainThread(content_);
+  }
+
+  virtual void notifyAnimationStarted(double wall_clock_time) OVERRIDE {
+    started_times_++;
+  }
+
+  virtual void notifyAnimationFinished(double wall_clock_time) OVERRIDE {
+    EXPECT_EQ(1, started_times_);
+    EndTest();
+  }
+
+  virtual void AfterTest() OVERRIDE {}
+
+ private:
+  int started_times_;
+  FakeContentLayerClient client_;
+  scoped_refptr<FakeContentLayer> content_;
+};
+
+SINGLE_AND_MULTI_THREAD_TEST_F(
+    LayerTreeHostAnimationTestRunAnimationWhenNotCanDraw);
+
+// Make sure the main thread can still execute animations when the renderer is
+// backgrounded.
+class LayerTreeHostAnimationTestRunAnimationWhenNotVisible
+    : public LayerTreeHostAnimationTest {
+ public:
+  LayerTreeHostAnimationTestRunAnimationWhenNotVisible() : started_times_(0) {}
+
+  virtual void SetupTree() OVERRIDE {
+    LayerTreeHostAnimationTest::SetupTree();
+    content_ = FakeContentLayer::Create(&client_);
+    content_->SetBounds(gfx::Size(4, 4));
+    content_->set_layer_animation_delegate(this);
+    layer_tree_host()->root_layer()->AddChild(content_);
+  }
+
+  virtual void BeginTest() OVERRIDE {
+    visible_ = true;
+    PostAddAnimationToMainThread(content_);
+  }
+
+  virtual void DidCommit() OVERRIDE {
+    visible_ = false;
+    layer_tree_host()->SetVisible(false);
+  }
+
+  virtual void notifyAnimationStarted(double wall_clock_time) OVERRIDE {
+    EXPECT_FALSE(visible_);
+    started_times_++;
+  }
+
+  virtual void notifyAnimationFinished(double wall_clock_time) OVERRIDE {
+    EXPECT_FALSE(visible_);
+    EXPECT_EQ(1, started_times_);
+    EndTest();
+  }
+
+  virtual void AfterTest() OVERRIDE {}
+
+ private:
+  bool visible_;
+  int started_times_;
+  FakeContentLayerClient client_;
+  scoped_refptr<FakeContentLayer> content_;
+};
+
+SINGLE_AND_MULTI_THREAD_TEST_F(
+    LayerTreeHostAnimationTestRunAnimationWhenNotVisible);
+
 }  // namespace
 }  // namespace cc