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:
ScrollbarAnimationControllerThinningTest()20 ScrollbarAnimationControllerThinningTest()
21 : host_impl_(&proxy_, &shared_bitmap_manager_) {}
22
PostDelayedScrollbarFade(const base::Closure & start_fade,base::TimeDelta delay)23 virtual void PostDelayedScrollbarFade(const base::Closure& start_fade,
24 base::TimeDelta delay) OVERRIDE {
25 start_fade_ = start_fade;
26 }
SetNeedsScrollbarAnimationFrame()27 virtual void SetNeedsScrollbarAnimationFrame() OVERRIDE {}
28
29 protected:
SetUp()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.
TEST_F(ScrollbarAnimationControllerThinningTest,Idle)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.
TEST_F(ScrollbarAnimationControllerThinningTest,AwakenByProgrammaticScroll)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.
TEST_F(ScrollbarAnimationControllerThinningTest,ScrollWithMouseNear)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.
TEST_F(ScrollbarAnimationControllerThinningTest,MouseNear)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.
TEST_F(ScrollbarAnimationControllerThinningTest,MouseOver)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.
TEST_F(ScrollbarAnimationControllerThinningTest,MouseNearThenOver)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
340