cc/layers/layer_utils_unittest.cc

   1 // Copyright 2014 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 "cc/layers/layer_utils.h"
   6
   7 #include "cc/animation/transform_operations.h"
   8 #include "cc/layers/layer_impl.h"
   9 #include "cc/test/animation_test_common.h"
  10 #include "cc/test/fake_impl_proxy.h"
  11 #include "cc/test/fake_layer_tree_host_impl.h"
  12 #include "cc/test/test_shared_bitmap_manager.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14 #include "ui/gfx/box_f.h"
  15 #include "ui/gfx/test/gfx_util.h"
  16
  17 namespace cc {
  18 namespace {
  19
  20 float diagonal(float width, float height) {
  21   return std::sqrt(width * width + height * height);
  22 }
  23
  24 class LayerUtilsGetAnimationBoundsTest : public testing::Test {
  25  public:
  26   LayerUtilsGetAnimationBoundsTest()
  27       : host_impl_(&proxy_, &shared_bitmap_manager_),
  28         root_(CreateThreeNodeTree(host_impl_)),
  29         parent_(root_->children()[0]),
  30         child_(parent_->children()[0]) {}
  31
  32   LayerImpl* root() { return root_.get(); }
  33   LayerImpl* parent() { return parent_; }
  34   LayerImpl* child() { return child_; }
  35
  36  private:
  37   static scoped_ptr<LayerImpl> CreateThreeNodeTree(
  38       LayerTreeHostImpl& host_impl) {
  39     scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
  40     root->AddChild(LayerImpl::Create(host_impl.active_tree(), 2));
  41     root->children()[0]
  42         ->AddChild(LayerImpl::Create(host_impl.active_tree(), 3));
  43     return root.Pass();
  44   }
  45
  46   FakeImplProxy proxy_;
  47   TestSharedBitmapManager shared_bitmap_manager_;
  48   FakeLayerTreeHostImpl host_impl_;
  49   scoped_ptr<LayerImpl> root_;
  50   LayerImpl* parent_;
  51   LayerImpl* child_;
  52 };
  53
  54 TEST_F(LayerUtilsGetAnimationBoundsTest, ScaleRoot) {
  55   double duration = 1.0;
  56
  57   TransformOperations start;
  58   start.AppendScale(1.f, 1.f, 1.f);
  59   TransformOperations end;
  60   end.AppendScale(2.f, 2.f, 1.f);
  61   AddAnimatedTransformToLayer(root(), duration, start, end);
  62
  63   root()->SetPosition(gfx::PointF());
  64   parent()->SetPosition(gfx::PointF());
  65   parent()->SetBounds(gfx::Size(350, 200));
  66
  67   child()->SetDrawsContent(true);
  68   child()->draw_properties().screen_space_transform_is_animating = true;
  69   child()->SetPosition(gfx::PointF(150.f, 50.f));
  70   child()->SetBounds(gfx::Size(100, 200));
  71
  72   gfx::BoxF box;
  73   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
  74   EXPECT_TRUE(success);
  75   gfx::BoxF expected(150.f, 50.f, 0.f, 350.f, 450.f, 0.f);
  76   EXPECT_BOXF_EQ(expected, box);
  77 }
  78
  79 TEST_F(LayerUtilsGetAnimationBoundsTest, TranslateParentLayer) {
  80   double duration = 1.0;
  81
  82   TransformOperations start;
  83   start.AppendTranslate(0.f, 0.f, 0.f);
  84   TransformOperations end;
  85   end.AppendTranslate(50.f, 50.f, 0.f);
  86   AddAnimatedTransformToLayer(parent(), duration, start, end);
  87
  88   parent()->SetBounds(gfx::Size(350, 200));
  89
  90   child()->SetDrawsContent(true);
  91   child()->draw_properties().screen_space_transform_is_animating = true;
  92   child()->SetPosition(gfx::PointF(150.f, 50.f));
  93   child()->SetBounds(gfx::Size(100, 200));
  94
  95   gfx::BoxF box;
  96   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
  97   EXPECT_TRUE(success);
  98   gfx::BoxF expected(150.f, 50.f, 0.f, 150.f, 250.f, 0.f);
  99   EXPECT_BOXF_EQ(expected, box);
 100 }
 101
 102 TEST_F(LayerUtilsGetAnimationBoundsTest, TranslateChildLayer) {
 103   double duration = 1.0;
 104
 105   TransformOperations start;
 106   start.AppendTranslate(0.f, 0.f, 0.f);
 107   TransformOperations end;
 108   end.AppendTranslate(50.f, 50.f, 0.f);
 109   AddAnimatedTransformToLayer(child(), duration, start, end);
 110
 111   parent()->SetBounds(gfx::Size(350, 200));
 112
 113   child()->SetDrawsContent(true);
 114   child()->draw_properties().screen_space_transform_is_animating = true;
 115   child()->SetPosition(gfx::PointF(150.f, 50.f));
 116   child()->SetBounds(gfx::Size(100, 200));
 117
 118   gfx::BoxF box;
 119   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
 120   EXPECT_TRUE(success);
 121   gfx::BoxF expected(150.f, 50.f, 0.f, 150.f, 250.f, 0.f);
 122   EXPECT_BOXF_EQ(expected, box);
 123 }
 124
 125 TEST_F(LayerUtilsGetAnimationBoundsTest, TranslateBothLayers) {
 126   double duration = 1.0;
 127
 128   TransformOperations start;
 129   start.AppendTranslate(0.f, 0.f, 0.f);
 130   TransformOperations child_end;
 131   child_end.AppendTranslate(50.f, 0.f, 0.f);
 132   AddAnimatedTransformToLayer(parent(), duration, start, child_end);
 133
 134   TransformOperations grand_child_end;
 135   grand_child_end.AppendTranslate(0.f, 50.f, 0.f);
 136   AddAnimatedTransformToLayer(child(), duration, start, grand_child_end);
 137
 138   parent()->SetBounds(gfx::Size(350, 200));
 139
 140   child()->SetDrawsContent(true);
 141   child()->draw_properties().screen_space_transform_is_animating = true;
 142   child()->SetPosition(gfx::PointF(150.f, 50.f));
 143   child()->SetBounds(gfx::Size(100, 200));
 144
 145   gfx::BoxF box;
 146   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
 147   EXPECT_TRUE(success);
 148   gfx::BoxF expected(150.f, 50.f, 0.f, 150.f, 250.f, 0.f);
 149   EXPECT_BOXF_EQ(expected, box);
 150 }
 151
 152 TEST_F(LayerUtilsGetAnimationBoundsTest, RotateXNoPerspective) {
 153   double duration = 1.0;
 154
 155   TransformOperations start;
 156   start.AppendRotate(1.f, 0.f, 0.f, 0.f);
 157   TransformOperations end;
 158   end.AppendRotate(1.f, 0.f, 0.f, 90.f);
 159   AddAnimatedTransformToLayer(child(), duration, start, end);
 160
 161   parent()->SetBounds(gfx::Size(350, 200));
 162
 163   gfx::Size bounds(100, 100);
 164   child()->SetDrawsContent(true);
 165   child()->draw_properties().screen_space_transform_is_animating = true;
 166   child()->SetPosition(gfx::PointF(150.f, 50.f));
 167   child()->SetBounds(bounds);
 168   child()->SetTransformOrigin(
 169       gfx::Point3F(bounds.width() * 0.5f, bounds.height() * 0.5f, 0));
 170
 171   gfx::BoxF box;
 172   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
 173   EXPECT_TRUE(success);
 174   gfx::BoxF expected(150.f, 50.f, -50.f, 100.f, 100.f, 100.f);
 175   EXPECT_BOXF_EQ(expected, box);
 176 }
 177
 178 TEST_F(LayerUtilsGetAnimationBoundsTest, RotateXWithPerspective) {
 179   double duration = 1.0;
 180
 181   TransformOperations start;
 182   start.AppendRotate(1.f, 0.f, 0.f, 0.f);
 183   TransformOperations end;
 184   end.AppendRotate(1.f, 0.f, 0.f, 90.f);
 185   AddAnimatedTransformToLayer(child(), duration, start, end);
 186
 187   // Make the anchor point not the default 0.5 value and line up with the
 188   // child center to make the math easier.
 189   parent()->SetTransformOrigin(
 190       gfx::Point3F(0.375f * 400.f, 0.375f * 400.f, 0.f));
 191   parent()->SetBounds(gfx::Size(400, 400));
 192
 193   gfx::Transform perspective;
 194   perspective.ApplyPerspectiveDepth(100.f);
 195   parent()->SetTransform(perspective);
 196
 197   gfx::Size bounds(100, 100);
 198   child()->SetDrawsContent(true);
 199   child()->draw_properties().screen_space_transform_is_animating = true;
 200   child()->SetPosition(gfx::PointF(100.f, 100.f));
 201   child()->SetBounds(bounds);
 202   child()->SetTransformOrigin(
 203       gfx::Point3F(bounds.width() * 0.5f, bounds.height() * 0.5f, 0));
 204
 205   gfx::BoxF box;
 206   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
 207   EXPECT_TRUE(success);
 208   gfx::BoxF expected(50.f, 50.f, -33.333336f, 200.f, 200.f, 133.333344f);
 209   EXPECT_BOXF_EQ(expected, box);
 210 }
 211
 212 TEST_F(LayerUtilsGetAnimationBoundsTest, RotateZ) {
 213   double duration = 1.0;
 214
 215   TransformOperations start;
 216   start.AppendRotate(0.f, 0.f, 1.f, 0.f);
 217   TransformOperations end;
 218   end.AppendRotate(0.f, 0.f, 1.f, 90.f);
 219   AddAnimatedTransformToLayer(child(), duration, start, end);
 220
 221   parent()->SetBounds(gfx::Size(350, 200));
 222
 223   gfx::Size bounds(100, 100);
 224   child()->SetDrawsContent(true);
 225   child()->draw_properties().screen_space_transform_is_animating = true;
 226   child()->SetPosition(gfx::PointF(150.f, 50.f));
 227   child()->SetBounds(bounds);
 228   child()->SetTransformOrigin(
 229       gfx::Point3F(bounds.width() * 0.5f, bounds.height() * 0.5f, 0));
 230
 231   gfx::BoxF box;
 232   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
 233   EXPECT_TRUE(success);
 234   float diag = diagonal(bounds.width(), bounds.height());
 235   gfx::BoxF expected(150.f + 0.5f * (bounds.width() - diag),
 236                      50.f + 0.5f * (bounds.height() - diag),
 237                      0.f,
 238                      diag,
 239                      diag,
 240                      0.f);
 241   EXPECT_BOXF_EQ(expected, box);
 242 }
 243
 244 TEST_F(LayerUtilsGetAnimationBoundsTest, MismatchedTransforms) {
 245   double duration = 1.0;
 246
 247   TransformOperations start;
 248   start.AppendTranslate(5, 6, 7);
 249   TransformOperations end;
 250   end.AppendRotate(0.f, 0.f, 1.f, 90.f);
 251   AddAnimatedTransformToLayer(child(), duration, start, end);
 252
 253   parent()->SetBounds(gfx::Size(350, 200));
 254
 255   gfx::Size bounds(100, 100);
 256   child()->SetDrawsContent(true);
 257   child()->draw_properties().screen_space_transform_is_animating = true;
 258   child()->SetPosition(gfx::PointF(150.f, 50.f));
 259   child()->SetBounds(bounds);
 260
 261   gfx::BoxF box;
 262   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
 263   EXPECT_FALSE(success);
 264 }
 265
 266 }  // namespace
 267 }  // namespace cc