| // Copyright 2014 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 "content/child/web_gesture_curve_impl.h" |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/WebKit/public/platform/WebFloatSize.h" |
| #include "third_party/WebKit/public/platform/WebGestureCurve.h" |
| #include "third_party/WebKit/public/platform/WebGestureCurveTarget.h" |
| #include "ui/events/gestures/fling_curve.h" |
| |
| using blink::WebFloatSize; |
| using blink::WebGestureCurve; |
| using blink::WebGestureCurveTarget; |
| |
| namespace content { |
| namespace { |
| |
| class MockGestureCurveTarget : public WebGestureCurveTarget { |
| public: |
| virtual bool scrollBy(const WebFloatSize& delta, |
| const WebFloatSize& velocity) override { |
| cumulative_delta_.width += delta.width; |
| cumulative_delta_.height += delta.height; |
| current_velocity_ = velocity; |
| return true; |
| } |
| |
| const WebFloatSize& cumulative_delta() const { return cumulative_delta_; } |
| const WebFloatSize& current_velocity() const { return current_velocity_; } |
| |
| private: |
| WebFloatSize cumulative_delta_; |
| WebFloatSize current_velocity_; |
| }; |
| |
| } // namespace anonymous |
| |
| TEST(WebGestureCurveImplTest, Basic) { |
| gfx::Vector2dF velocity(5000, 0); |
| gfx::Vector2dF offset; |
| base::TimeTicks time; |
| auto curve = WebGestureCurveImpl::CreateFrom( |
| scoped_ptr<ui::GestureCurve>(new ui::FlingCurve(velocity, time)), offset); |
| |
| // coded into the create call above. |
| MockGestureCurveTarget target; |
| EXPECT_TRUE(curve->apply(0, &target)); |
| EXPECT_TRUE(curve->apply(0.25, &target)); |
| EXPECT_NEAR(target.current_velocity().width, 1878, 1); |
| EXPECT_EQ(target.current_velocity().height, 0); |
| EXPECT_GT(target.cumulative_delta().width, 0); |
| EXPECT_TRUE(curve->apply(0.45, &target)); // Use non-uniform tick spacing. |
| |
| // Ensure fling persists even if successive timestamps are identical. |
| gfx::Vector2dF cumulative_delta = target.cumulative_delta(); |
| gfx::Vector2dF current_velocity = target.current_velocity(); |
| EXPECT_TRUE(curve->apply(0.45, &target)); |
| EXPECT_EQ(cumulative_delta, gfx::Vector2dF(target.cumulative_delta())); |
| EXPECT_EQ(current_velocity, gfx::Vector2dF(target.current_velocity())); |
| |
| EXPECT_TRUE(curve->apply(0.75, &target)); |
| EXPECT_FALSE(curve->apply(1.5, &target)); |
| EXPECT_NEAR(target.cumulative_delta().width, 1193, 1); |
| EXPECT_EQ(target.cumulative_delta().height, 0); |
| EXPECT_EQ(target.current_velocity().width, 0); |
| EXPECT_EQ(target.current_velocity().height, 0); |
| } |
| |
| } // namespace content |