cc/animation/scrollbar_animation_controller_thinning_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/animation/scrollbar_animation_controller_thinning.h"
   6
   7 #include "cc/layers/solid_color_scrollbar_layer_impl.h"
   8 #include "cc/test/fake_impl_proxy.h"
   9 #include "cc/test/fake_layer_tree_host_impl.h"
  10 #include "cc/test/test_shared_bitmap_manager.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace cc {
  14 namespace {
  15
  16 class ScrollbarAnimationControllerThinningTest
  17     : public testing::Test,
  18       public ScrollbarAnimationControllerClient {
  19  public:
  20   ScrollbarAnimationControllerThinningTest()
  21       : host_impl_(&proxy_, &shared_bitmap_manager_) {}
  22
  23   virtual void PostDelayedScrollbarFade(const base::Closure& start_fade,
  24                                         base::TimeDelta delay) OVERRIDE {
  25     start_fade_ = start_fade;
  26   }
  27   virtual void SetNeedsScrollbarAnimationFrame() OVERRIDE {}
  28
  29  protected:
  30   virtual void SetUp() {
  31     scoped_ptr<LayerImpl> scroll_layer =
  32         LayerImpl::Create(host_impl_.active_tree(), 1);
  33     clip_layer_ = LayerImpl::Create(host_impl_.active_tree(), 3);
  34     scroll_layer->SetScrollClipLayer(clip_layer_->id());
  35     LayerImpl* scroll_layer_ptr = scroll_layer.get();
  36     clip_layer_->AddChild(scroll_layer.Pass());
  37
  38     const int kId = 2;
  39     const int kThumbThickness = 10;
  40     const int kTrackStart = 0;
  41     const bool kIsLeftSideVerticalScrollbar = false;
  42     const bool kIsOverlayScrollbar = true;
  43     scrollbar_layer_ =
  44         SolidColorScrollbarLayerImpl::Create(host_impl_.active_tree(),
  45                                              kId,
  46                                              HORIZONTAL,
  47                                              kThumbThickness,
  48                                              kTrackStart,
  49                                              kIsLeftSideVerticalScrollbar,
  50                                              kIsOverlayScrollbar);
  51
  52     scrollbar_layer_->SetScrollLayerAndClipLayerByIds(scroll_layer_ptr->id(),
  53                                                       clip_layer_->id());
  54     clip_layer_->SetBounds(gfx::Size(100, 100));
  55     scroll_layer_ptr->SetBounds(gfx::Size(50, 50));
  56
  57     scrollbar_controller_ = ScrollbarAnimationControllerThinning::Create(
  58         scroll_layer_ptr,
  59         this,
  60         base::TimeDelta::FromSeconds(2),
  61         base::TimeDelta::FromSeconds(3));
  62   }
  63
  64   FakeImplProxy proxy_;
  65   TestSharedBitmapManager shared_bitmap_manager_;
  66   FakeLayerTreeHostImpl host_impl_;
  67   scoped_ptr<ScrollbarAnimationControllerThinning> scrollbar_controller_;
  68   scoped_ptr<LayerImpl> clip_layer_;
  69   scoped_ptr<SolidColorScrollbarLayerImpl> scrollbar_layer_;
  70
  71   base::Closure start_fade_;
  72 };
  73
  74 // Check initialization of scrollbar.
  75 TEST_F(ScrollbarAnimationControllerThinningTest, Idle) {
  76   scrollbar_controller_->Animate(base::TimeTicks());
  77   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
  78   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
  79 }
  80
  81 // Scroll content. Confirm the scrollbar gets dark and then becomes light
  82 // after stopping.
  83 TEST_F(ScrollbarAnimationControllerThinningTest, AwakenByProgrammaticScroll) {
  84   base::TimeTicks time;
  85   time += base::TimeDelta::FromSeconds(1);
  86   scrollbar_controller_->DidScrollUpdate();
  87   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
  88   // Scrollbar doesn't change size if triggered by scroll.
  89   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
  90
  91   start_fade_.Run();
  92
  93   time += base::TimeDelta::FromSeconds(1);
  94   scrollbar_controller_->Animate(time);
  95   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
  96   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
  97
  98   // Subsequent scroll restarts animation.
  99   scrollbar_controller_->DidScrollUpdate();
 100
 101   start_fade_.Run();
 102
 103   time += base::TimeDelta::FromSeconds(2);
 104   scrollbar_controller_->Animate(time);
 105   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
 106   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 107
 108   time += base::TimeDelta::FromSeconds(1);
 109   scrollbar_controller_->Animate(time);
 110   EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
 111   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 112
 113   time += base::TimeDelta::FromSeconds(1);
 114   scrollbar_controller_->Animate(time);
 115   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
 116   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 117
 118   time += base::TimeDelta::FromSeconds(1);
 119   scrollbar_controller_->Animate(time);
 120   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 121   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 122 }
 123
 124 // Initiate a scroll when the pointer is already near the scrollbar. It should
 125 // remain thick.
 126 TEST_F(ScrollbarAnimationControllerThinningTest, ScrollWithMouseNear) {
 127   base::TimeTicks time;
 128   time += base::TimeDelta::FromSeconds(1);
 129
 130   scrollbar_controller_->DidMouseMoveNear(1);
 131   scrollbar_controller_->Animate(time);
 132   time += base::TimeDelta::FromSeconds(3);
 133
 134   scrollbar_controller_->Animate(time);
 135   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 136
 137   scrollbar_controller_->DidScrollUpdate();
 138   start_fade_.Run();
 139   scrollbar_controller_->Animate(time);
 140   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
 141   // Scrollbar should still be thick.
 142   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 143
 144   time += base::TimeDelta::FromSeconds(5);
 145   scrollbar_controller_->Animate(time);
 146   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 147   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 148 }
 149
 150 // Move the pointer near the scrollbar. Confirm it gets thick and narrow when
 151 // moved away.
 152 TEST_F(ScrollbarAnimationControllerThinningTest, MouseNear) {
 153   base::TimeTicks time;
 154   time += base::TimeDelta::FromSeconds(1);
 155   scrollbar_controller_->DidMouseMoveNear(1);
 156   scrollbar_controller_->Animate(time);
 157   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 158   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 159
 160   // Should animate to thickened but not darken.
 161   time += base::TimeDelta::FromSeconds(1);
 162   scrollbar_controller_->Animate(time);
 163   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 164   EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
 165
 166   time += base::TimeDelta::FromSeconds(1);
 167   scrollbar_controller_->Animate(time);
 168   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 169   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 170
 171   time += base::TimeDelta::FromSeconds(1);
 172   scrollbar_controller_->Animate(time);
 173   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 174   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 175
 176   // Subsequent moves should not change anything.
 177   scrollbar_controller_->DidMouseMoveNear(1);
 178   scrollbar_controller_->Animate(time);
 179   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 180   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 181
 182   // Now move away from bar.
 183   time += base::TimeDelta::FromSeconds(1);
 184   scrollbar_controller_->DidMouseMoveNear(26);
 185   scrollbar_controller_->Animate(time);
 186   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 187   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 188
 189   // Animate to narrow.
 190   time += base::TimeDelta::FromSeconds(1);
 191   scrollbar_controller_->Animate(time);
 192   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 193   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 194
 195   time += base::TimeDelta::FromSeconds(1);
 196   scrollbar_controller_->Animate(time);
 197   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 198   EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
 199
 200   time += base::TimeDelta::FromSeconds(1);
 201   scrollbar_controller_->Animate(time);
 202   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 203   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 204 }
 205
 206 // Move the pointer over the scrollbar. Make sure it gets thick and dark
 207 // and that it gets thin and light when moved away.
 208 TEST_F(ScrollbarAnimationControllerThinningTest, MouseOver) {
 209   base::TimeTicks time;
 210   time += base::TimeDelta::FromSeconds(1);
 211   scrollbar_controller_->DidMouseMoveNear(0);
 212   scrollbar_controller_->Animate(time);
 213   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 214   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 215
 216   // Should animate to thickened and darkened.
 217   time += base::TimeDelta::FromSeconds(1);
 218   scrollbar_controller_->Animate(time);
 219   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
 220   EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
 221
 222   time += base::TimeDelta::FromSeconds(1);
 223   scrollbar_controller_->Animate(time);
 224   EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
 225   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 226
 227   time += base::TimeDelta::FromSeconds(1);
 228   scrollbar_controller_->Animate(time);
 229   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
 230   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 231
 232   // Subsequent moves should not change anything.
 233   scrollbar_controller_->DidMouseMoveNear(0);
 234   scrollbar_controller_->Animate(time);
 235   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
 236   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 237
 238   // Now move away from bar.
 239   time += base::TimeDelta::FromSeconds(1);
 240   scrollbar_controller_->DidMouseMoveNear(26);
 241   scrollbar_controller_->Animate(time);
 242   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
 243   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 244
 245   // Animate to narrow.
 246   time += base::TimeDelta::FromSeconds(1);
 247   scrollbar_controller_->Animate(time);
 248   EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
 249   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 250
 251   time += base::TimeDelta::FromSeconds(1);
 252   scrollbar_controller_->Animate(time);
 253   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
 254   EXPECT_FLOAT_EQ(0.6f, scrollbar_layer_->thumb_thickness_scale_factor());
 255
 256   time += base::TimeDelta::FromSeconds(1);
 257   scrollbar_controller_->Animate(time);
 258   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 259   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 260 }
 261
 262 // First move the pointer near the scrollbar, then over it, then back near
 263 // then far away. Confirm that first the bar gets thick, then dark, then light,
 264 // then narrow.
 265 TEST_F(ScrollbarAnimationControllerThinningTest, MouseNearThenOver) {
 266   base::TimeTicks time;
 267   time += base::TimeDelta::FromSeconds(1);
 268   scrollbar_controller_->DidMouseMoveNear(1);
 269   scrollbar_controller_->Animate(time);
 270   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 271   EXPECT_FLOAT_EQ(0.4f, scrollbar_layer_->thumb_thickness_scale_factor());
 272
 273   // Should animate to thickened but not darken.
 274   time += base::TimeDelta::FromSeconds(3);
 275   scrollbar_controller_->Animate(time);
 276   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 277   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 278
 279   // Now move over.
 280   scrollbar_controller_->DidMouseMoveNear(0);
 281   scrollbar_controller_->Animate(time);
 282
 283   // Should animate to darkened.
 284   time += base::TimeDelta::FromSeconds(1);
 285   scrollbar_controller_->Animate(time);
 286   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
 287   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 288
 289   time += base::TimeDelta::FromSeconds(1);
 290   scrollbar_controller_->Animate(time);
 291   EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
 292   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 293
 294   time += base::TimeDelta::FromSeconds(1);
 295   scrollbar_controller_->Animate(time);
 296   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
 297   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 298
 299   // This is tricky. The DidMouseMoveOffScrollbar() is sent before the
 300   // subsequent DidMouseMoveNear(), if the mouse moves in that direction.
 301   // This results in the thumb thinning. We want to make sure that when the
 302   // thumb starts expanding it doesn't first narrow to the idle thinness.
 303   time += base::TimeDelta::FromSeconds(1);
 304   scrollbar_controller_->DidMouseMoveOffScrollbar();
 305   scrollbar_controller_->Animate(time);
 306
 307   time += base::TimeDelta::FromSeconds(1);
 308   scrollbar_controller_->Animate(time);
 309   EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
 310   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 311
 312   scrollbar_controller_->DidMouseMoveNear(1);
 313   scrollbar_controller_->Animate(time);
 314   // A new animation is kicked off.
 315
 316   time += base::TimeDelta::FromSeconds(1);
 317   scrollbar_controller_->Animate(time);
 318   // We will initiate the narrowing again, but it won't get decremented until
 319   // the new animation catches up to it.
 320   EXPECT_FLOAT_EQ(0.9f, scrollbar_layer_->opacity());
 321   // Now the thickness should be increasing, but it shouldn't happen until the
 322   // animation catches up.
 323   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 324
 325   time += base::TimeDelta::FromSeconds(1);
 326   scrollbar_controller_->Animate(time);
 327   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->opacity());
 328   // The thickness now gets big again.
 329   EXPECT_FLOAT_EQ(0.8f, scrollbar_layer_->thumb_thickness_scale_factor());
 330
 331   time += base::TimeDelta::FromSeconds(1);
 332   scrollbar_controller_->Animate(time);
 333   EXPECT_FLOAT_EQ(0.7f, scrollbar_layer_->opacity());
 334   // The thickness now gets big again.
 335   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->thumb_thickness_scale_factor());
 336 }
 337
 338 }  // namespace
 339 }  // namespace cc