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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "PlatformGestureCurve.h"
#include "ActivePlatformGestureAnimation.h"
#include "PlatformGestureCurveTarget.h"
#include "TouchFlingPlatformGestureCurve.h"
#include "WheelFlingPlatformGestureCurve.h"
#include <gtest/gtest.h>
#include <wtf/OwnPtr.h>
namespace {
using namespace WebCore;
class MockPlatformGestureCurveTarget : public PlatformGestureCurveTarget {
public:
virtual void scrollBy(const IntPoint& delta)
{
m_cumulativeDelta = m_cumulativeDelta + delta;
}
IntPoint cumulativeDelta() const { return m_cumulativeDelta; }
void resetCumulativeDelta() { m_cumulativeDelta = IntPoint(); }
private:
IntPoint m_cumulativeDelta;
};
TEST(PlatformGestureCurve, flingCurve)
{
MockPlatformGestureCurveTarget target;
OwnPtr<ActivePlatformGestureAnimation> animation = ActivePlatformGestureAnimation::create(WheelFlingPlatformGestureCurve::create(FloatPoint(100, 0)), &target);
// Note: the expectations below are dependent on the value of sigma hard-coded in the Rayleigh
// curve. If sigma changes, these test expectations will also change.
EXPECT_TRUE(animation->animate(0));
EXPECT_TRUE(animation->animate(0.25));
EXPECT_TRUE(animation->animate(0.45)); // Use non-uniform tick spacing.
EXPECT_TRUE(animation->animate(0.75));
EXPECT_TRUE(animation->animate(1000));
EXPECT_FALSE(animation->animate(1001));
// Since the Rayleigh CDF maxes out at 1, we expect the cumulative scroll increments to
// match the input velocity parameter.
EXPECT_NEAR(target.cumulativeDelta().x(), 100, 1);
EXPECT_EQ(target.cumulativeDelta().y(), 0);
// Test animation when not starting at t = 0.
double baseTime = 42.42;
animation = ActivePlatformGestureAnimation::create(WheelFlingPlatformGestureCurve::create(FloatPoint(100, 0)), &target);
target.resetCumulativeDelta();
EXPECT_TRUE(animation->animate(baseTime + 0.35));
EXPECT_TRUE(animation->animate(baseTime + 1.35));
EXPECT_TRUE(animation->animate(baseTime + 1000));
EXPECT_FALSE(animation->animate(baseTime + 1001));
EXPECT_NEAR(target.cumulativeDelta().x(), 100, 1);
animation = ActivePlatformGestureAnimation::create(WheelFlingPlatformGestureCurve::create(FloatPoint(50, 150)), &target);
target.resetCumulativeDelta();
// Test animation with both horizontal and vertical scroll velocities.
EXPECT_TRUE(animation->animate(0));
EXPECT_TRUE(animation->animate(0.25));
EXPECT_TRUE(animation->animate(0.45));
EXPECT_TRUE(animation->animate(0.75));
EXPECT_TRUE(animation->animate(1000));
EXPECT_FALSE(animation->animate(1001));
EXPECT_NEAR(target.cumulativeDelta().x(), 50, 1);
EXPECT_NEAR(target.cumulativeDelta().y(), 150, 1);
}
TEST(PlatformGestureCurve, flingCurveTouch)
{
double initialVelocity = 5000;
MockPlatformGestureCurveTarget target;
OwnPtr<ActivePlatformGestureAnimation> animation = ActivePlatformGestureAnimation::create(TouchFlingPlatformGestureCurve::createForTouchPad(FloatPoint(initialVelocity, 0)), &target);
// Note: the expectations below are dependent on the value of sigma hard-coded in the curve parameters.
// If the parameters change, then the tests values/expectations will need to be updated.
EXPECT_TRUE(animation->animate(0));
EXPECT_TRUE(animation->animate(0.25));
EXPECT_TRUE(animation->animate(0.45)); // Use non-uniform tick spacing.
EXPECT_TRUE(animation->animate(1));
EXPECT_FALSE(animation->animate(1.5));
EXPECT_NEAR(target.cumulativeDelta().x(), 1193, 1);
EXPECT_EQ(target.cumulativeDelta().y(), 0);
}
} // namespace anonymous
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