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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_AutocrollAnimation_h_
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#define mozilla_layers_AutocrollAnimation_h_
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#include "AsyncPanZoomAnimation.h"
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namespace mozilla {
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namespace layers {
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class AsyncPanZoomController;
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class AutoscrollAnimation : public AsyncPanZoomAnimation {
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public:
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AutoscrollAnimation(AsyncPanZoomController& aApzc,
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const ScreenPoint& aAnchorLocation);
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bool DoSample(FrameMetrics& aFrameMetrics,
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const TimeDuration& aDelta) override;
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bool HandleScrollOffsetUpdate(
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const Maybe<CSSPoint>& aRelativeDelta) override {
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// Autoscroll works using screen space coordinates, so there's no work we
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// need to do to handle either a relative or an absolute scroll update.
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return true;
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}
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void Cancel(CancelAnimationFlags aFlags) override;
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private:
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AsyncPanZoomController& mApzc;
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ScreenPoint mAnchorLocation;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // mozilla_layers_AutoscrollAnimation_h_