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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_layers_AndroidAPZ_h_
#define mozilla_layers_AndroidAPZ_h_
#include "AsyncPanZoomAnimation.h"
#include "AsyncPanZoomController.h"
#include "GeneratedJNIWrappers.h"
namespace mozilla {
namespace layers {
class AndroidSpecificState : public PlatformSpecificStateBase {
public:
AndroidSpecificState();
virtual AndroidSpecificState* AsAndroidSpecificState() override {
return this;
}
java::StackScroller::GlobalRef mOverScroller;
TimeStamp mLastFling;
};
class AndroidFlingAnimation: public AsyncPanZoomAnimation {
public:
AndroidFlingAnimation(AsyncPanZoomController& aApzc,
PlatformSpecificStateBase* aPlatformSpecificState,
const RefPtr<const OverscrollHandoffChain>& aOverscrollHandoffChain,
bool aFlingIsHandoff /* ignored */,
const RefPtr<const AsyncPanZoomController>& aScrolledApzc);
virtual bool DoSample(FrameMetrics& aFrameMetrics,
const TimeDuration& aDelta) override;
private:
void DeferHandleFlingOverscroll(ParentLayerPoint& aVelocity);
// Returns true if value is on or outside of axis bounds.
bool CheckBounds(Axis& aAxis, float aValue, float aDirection, float* aClamped);
AsyncPanZoomController& mApzc;
java::StackScroller::GlobalRef mOverScroller;
RefPtr<const OverscrollHandoffChain> mOverscrollHandoffChain;
RefPtr<const AsyncPanZoomController> mScrolledApzc;
bool mSentBounceX;
bool mSentBounceY;
long mFlingDuration;
ParentLayerPoint mStartOffset;
ParentLayerPoint mPreviousOffset;
// Unit vector in the direction of the fling.
ParentLayerPoint mFlingDirection;
ParentLayerPoint mPreviousVelocity;
};
} // namespace layers
} // namespace mozilla
#endif // mozilla_layers_AndroidAPZ_h_
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