84 lines
3.3 KiB
C++
84 lines
3.3 KiB
C++
/*
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* Copyright (c) 2016 Igalia S.L.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "ScrollAnimator.h"
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#include "Timer.h"
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namespace WebCore {
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class ScrollAnimation;
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class ScrollAnimationKinetic;
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class ScrollAnimatorGeneric final : public ScrollAnimator {
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public:
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explicit ScrollAnimatorGeneric(ScrollableArea&);
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virtual ~ScrollAnimatorGeneric();
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private:
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bool scrollToPositionWithoutAnimation(const FloatPoint&, ScrollClamping) override;
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bool handleWheelEvent(const PlatformWheelEvent&) override;
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void didAddVerticalScrollbar(Scrollbar*) override;
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void didAddHorizontalScrollbar(Scrollbar*) override;
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void willRemoveVerticalScrollbar(Scrollbar*) override;
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void willRemoveHorizontalScrollbar(Scrollbar*) override;
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void mouseEnteredContentArea() override;
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void mouseExitedContentArea() override;
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void mouseMovedInContentArea() override;
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void contentAreaDidShow() override;
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void contentAreaDidHide() override;
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void notifyContentAreaScrolled(const FloatSize& delta) override;
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void lockOverlayScrollbarStateToHidden(bool) override;
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void updatePosition(FloatPoint&&);
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void overlayScrollbarAnimationTimerFired();
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void showOverlayScrollbars();
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void hideOverlayScrollbars();
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void updateOverlayScrollbarsOpacity();
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std::unique_ptr<ScrollAnimationKinetic> m_kineticAnimation;
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Scrollbar* m_horizontalOverlayScrollbar { nullptr };
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Scrollbar* m_verticalOverlayScrollbar { nullptr };
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bool m_overlayScrollbarsLocked { false };
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Timer m_overlayScrollbarAnimationTimer;
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double m_overlayScrollbarAnimationSource { 0 };
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double m_overlayScrollbarAnimationTarget { 0 };
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double m_overlayScrollbarAnimationCurrent { 0 };
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MonotonicTime m_overlayScrollbarAnimationStartTime;
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MonotonicTime m_overlayScrollbarAnimationEndTime;
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};
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} // namespace WebCore
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