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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "cc/animation/scroll_offset_animation_curve.h" | 5 #include "cc/animation/scroll_offset_animation_curve.h" |
6 | 6 |
7 #include "cc/animation/timing_function.h" | 7 #include "cc/animation/timing_function.h" |
8 #include "cc/base/time_util.h" | 8 #include "cc/base/time_util.h" |
9 #include "cc/test/geometry_test_utils.h" | 9 #include "cc/test/geometry_test_utils.h" |
10 #include "testing/gtest/include/gtest/gtest.h" | 10 #include "testing/gtest/include/gtest/gtest.h" |
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121 gfx::ScrollOffset value = clone->ToScrollOffsetAnimationCurve()->GetValue( | 121 gfx::ScrollOffset value = clone->ToScrollOffsetAnimationCurve()->GetValue( |
122 TimeUtil::Scale(duration, 0.25f)); | 122 TimeUtil::Scale(duration, 0.25f)); |
123 EXPECT_NEAR(3.0333f, value.x(), 0.0002f); | 123 EXPECT_NEAR(3.0333f, value.x(), 0.0002f); |
124 EXPECT_NEAR(37.4168f, value.y(), 0.0002f); | 124 EXPECT_NEAR(37.4168f, value.y(), 0.0002f); |
125 } | 125 } |
126 | 126 |
127 TEST(ScrollOffsetAnimationCurveTest, UpdateTarget) { | 127 TEST(ScrollOffsetAnimationCurveTest, UpdateTarget) { |
128 gfx::ScrollOffset initial_value(0.f, 0.f); | 128 gfx::ScrollOffset initial_value(0.f, 0.f); |
129 gfx::ScrollOffset target_value(0.f, 3600.f); | 129 gfx::ScrollOffset target_value(0.f, 3600.f); |
130 scoped_ptr<ScrollOffsetAnimationCurve> curve( | 130 scoped_ptr<ScrollOffsetAnimationCurve> curve( |
131 ScrollOffsetAnimationCurve::Create(target_value, | |
132 EaseInOutTimingFunction::Create())); | |
133 curve->SetInitialValue(initial_value); | |
134 EXPECT_EQ(1.0, curve->Duration().InSecondsF()); | |
135 EXPECT_EQ(1800.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.5)).y()); | |
136 EXPECT_EQ(3600.0, curve->GetValue(base::TimeDelta::FromSecondsD(1.0)).y()); | |
137 | |
138 curve->UpdateTarget(0.5, gfx::ScrollOffset(0.0, 9900.0)); | |
139 | |
140 EXPECT_EQ(2.0, curve->Duration().InSecondsF()); | |
141 EXPECT_EQ(1800.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.5)).y()); | |
142 EXPECT_NEAR(5410.05, curve->GetValue(base::TimeDelta::FromSecondsD(1.0)).y(), | |
143 0.01); | |
144 EXPECT_EQ(9900.0, curve->GetValue(base::TimeDelta::FromSecondsD(2.0)).y()); | |
145 | |
146 curve->UpdateTarget(1.0, gfx::ScrollOffset(0.0, 7200.0)); | |
147 | |
148 EXPECT_NEAR(1.705, curve->Duration().InSecondsF(), 0.01); | |
149 EXPECT_NEAR(5410.05, curve->GetValue(base::TimeDelta::FromSecondsD(1.0)).y(), | |
150 0.01); | |
151 EXPECT_EQ(7200.0, curve->GetValue(base::TimeDelta::FromSecondsD(1.705)).y()); | |
152 } | |
153 | |
154 TEST(ScrollOffsetAnimationCurveTest, UpdateTargetWithLargeVelocity) { | |
155 gfx::ScrollOffset initial_value(0.f, 0.f); | |
156 gfx::ScrollOffset target_value(0.f, 900.f); | |
157 scoped_ptr<ScrollOffsetAnimationCurve> curve( | |
158 ScrollOffsetAnimationCurve::Create(target_value, | |
159 EaseInOutTimingFunction::Create())); | |
160 curve->SetInitialValue(initial_value); | |
161 EXPECT_EQ(0.5, curve->Duration().InSecondsF()); | |
162 | |
163 EXPECT_EQ(450.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.25)).y()); | |
164 | |
165 // This leads to a new computed velocity larger than 5000. | |
166 curve->UpdateTarget(0.25, gfx::ScrollOffset(0.0, 450.0001)); | |
167 | |
168 EXPECT_NEAR(0.25015, curve->Duration().InSecondsF(), 0.0001); | |
169 EXPECT_NEAR(450.0, | |
170 curve->GetValue(base::TimeDelta::FromSecondsD(0.22501)).y(), | |
171 0.001); | |
172 EXPECT_NEAR(450.0, | |
173 curve->GetValue(base::TimeDelta::FromSecondsD(0.225015)).y(), | |
174 0.001); | |
175 } | |
176 | |
177 TEST(ScrollOffsetAnimationCurveTest, UpdateTargetConstantDuration) { | |
178 gfx::ScrollOffset initial_value(0.f, 0.f); | |
179 gfx::ScrollOffset target_value(0.f, 3600.f); | |
180 scoped_ptr<ScrollOffsetAnimationCurve> curve( | |
181 ScrollOffsetAnimationCurve::Create( | 131 ScrollOffsetAnimationCurve::Create( |
182 target_value, EaseInOutTimingFunction::Create(), | 132 target_value, EaseInOutTimingFunction::Create(), |
183 ScrollOffsetAnimationCurve::DurationBehavior::CONSTANT)); | 133 ScrollOffsetAnimationCurve::DurationBehavior::CONSTANT)); |
184 curve->SetInitialValue(initial_value); | 134 curve->SetInitialValue(initial_value); |
185 EXPECT_EQ(0.2, curve->Duration().InSecondsF()); | 135 EXPECT_EQ(0.2, curve->Duration().InSecondsF()); |
| 136 EXPECT_EQ(1800.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.1)).y()); |
| 137 EXPECT_EQ(3600.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.2)).y()); |
186 | 138 |
187 curve->UpdateTarget(0.1, gfx::ScrollOffset(0.0, 9900.0)); | 139 curve->UpdateTarget(0.1, gfx::ScrollOffset(0.0, 9900.0)); |
| 140 |
188 EXPECT_EQ(0.3, curve->Duration().InSecondsF()); | 141 EXPECT_EQ(0.3, curve->Duration().InSecondsF()); |
| 142 EXPECT_EQ(1800.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.1)).y()); |
| 143 EXPECT_NEAR(6827.59, curve->GetValue(base::TimeDelta::FromSecondsD(0.2)).y(), |
| 144 0.01); |
| 145 EXPECT_EQ(9900.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.3)).y()); |
| 146 |
| 147 curve->UpdateTarget(0.2, gfx::ScrollOffset(0.0, 7200.0)); |
| 148 |
| 149 // A closer target at high velocity reduces the duration. |
| 150 EXPECT_NEAR(0.22, curve->Duration().InSecondsF(), 0.01); |
| 151 EXPECT_NEAR(6827.59, curve->GetValue(base::TimeDelta::FromSecondsD(0.2)).y(), |
| 152 0.01); |
| 153 EXPECT_EQ(7200.0, curve->GetValue(base::TimeDelta::FromSecondsD(0.22)).y()); |
189 } | 154 } |
190 | 155 |
191 } // namespace | 156 } // namespace |
192 } // namespace cc | 157 } // namespace cc |
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