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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/animation/scroll_offset_animation_curve_factory.h"
#include "base/memory/ptr_util.h"
#include "base/notreached.h"
namespace cc {
namespace {
ScrollOffsetAnimationCurve::DurationBehavior GetDurationBehaviorFromScrollType(
ScrollOffsetAnimationCurve::ScrollType scroll_type) {
switch (scroll_type) {
case ScrollOffsetAnimationCurve::ScrollType::kProgrammatic:
return ScrollOffsetAnimationCurve::DurationBehavior::kDeltaBased;
case ScrollOffsetAnimationCurve::ScrollType::kKeyboard:
return ScrollOffsetAnimationCurve::DurationBehavior::kConstant;
case ScrollOffsetAnimationCurve::ScrollType::kMouseWheel:
return ScrollOffsetAnimationCurve::DurationBehavior::kInverseDelta;
case ScrollOffsetAnimationCurve::ScrollType::kAutoScroll:
NOTREACHED();
}
}
} // namespace
// static
std::unique_ptr<ScrollOffsetAnimationCurve>
ScrollOffsetAnimationCurveFactory::CreateAnimation(
const gfx::PointF& target_value,
ScrollOffsetAnimationCurve::ScrollType scroll_type) {
if (scroll_type == ScrollOffsetAnimationCurve::ScrollType::kAutoScroll) {
return CreateLinearAnimation(target_value);
}
return CreateEaseInOutAnimation(
target_value, scroll_type,
GetDurationBehaviorFromScrollType(scroll_type));
}
// static
std::unique_ptr<ScrollOffsetAnimationCurve>
ScrollOffsetAnimationCurveFactory::CreateEaseInOutAnimationForTesting(
const gfx::PointF& target_value,
ScrollOffsetAnimationCurve::DurationBehavior duration_behavior) {
return CreateEaseInOutAnimation(
target_value, ScrollOffsetAnimationCurve::ScrollType::kProgrammatic,
duration_behavior);
}
// static
std::unique_ptr<ScrollOffsetAnimationCurve>
ScrollOffsetAnimationCurveFactory::CreateLinearAnimationForTesting(
const gfx::PointF& target_value) {
return CreateLinearAnimation(target_value);
}
// static
std::unique_ptr<ScrollOffsetAnimationCurve>
ScrollOffsetAnimationCurveFactory::CreateEaseInOutAnimation(
const gfx::PointF& target_value,
ScrollOffsetAnimationCurve::ScrollType scroll_type,
ScrollOffsetAnimationCurve::DurationBehavior duration_behavior) {
return base::WrapUnique(new ScrollOffsetAnimationCurve(
target_value, ScrollOffsetAnimationCurve::AnimationType::kEaseInOut,
scroll_type, duration_behavior));
}
// static
std::unique_ptr<ScrollOffsetAnimationCurve>
ScrollOffsetAnimationCurveFactory::CreateLinearAnimation(
const gfx::PointF& target_value) {
return base::WrapUnique(new ScrollOffsetAnimationCurve(
target_value, ScrollOffsetAnimationCurve::AnimationType::kLinear,
ScrollOffsetAnimationCurve::ScrollType::kAutoScroll));
}
} // namespace cc
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