ScrollAnimatorGtk.h [plain text]
#ifndef ScrollAnimatorGtk_h
#define ScrollAnimatorGtk_h
#include "ScrollAnimator.h"
#include "Timer.h"
namespace WebCore {
class ScrollAnimation;
class ScrollAnimatorGtk final : public ScrollAnimator {
public:
explicit ScrollAnimatorGtk(ScrollableArea&);
virtual ~ScrollAnimatorGtk();
private:
#if ENABLE(SMOOTH_SCROLLING)
bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier) override;
#endif
void scrollToOffsetWithoutAnimation(const FloatPoint&, ScrollClamping) override;
void willEndLiveResize() override;
bool handleWheelEvent(const PlatformWheelEvent&) override;
void didAddVerticalScrollbar(Scrollbar*) override;
void didAddHorizontalScrollbar(Scrollbar*) override;
void willRemoveVerticalScrollbar(Scrollbar*) override;
void willRemoveHorizontalScrollbar(Scrollbar*) override;
void mouseEnteredContentArea() override;
void mouseExitedContentArea() override;
void mouseMovedInContentArea() override;
void contentAreaDidShow() override;
void contentAreaDidHide() override;
void notifyContentAreaScrolled(const FloatSize& delta) override;
void lockOverlayScrollbarStateToHidden(bool) override;
void updatePosition(FloatPoint&&);
void overlayScrollbarAnimationTimerFired();
void showOverlayScrollbars();
void hideOverlayScrollbars();
void updateOverlayScrollbarsOpacity();
FloatPoint computeVelocity();
#if ENABLE(SMOOTH_SCROLLING)
void ensureSmoothScrollingAnimation();
std::unique_ptr<ScrollAnimation> m_smoothAnimation;
#endif
std::unique_ptr<ScrollAnimation> m_kineticAnimation;
Vector<PlatformWheelEvent> m_scrollHistory;
Scrollbar* m_horizontalOverlayScrollbar { nullptr };
Scrollbar* m_verticalOverlayScrollbar { nullptr };
bool m_overlayScrollbarsLocked { false };
Timer m_overlayScrollbarAnimationTimer;
double m_overlayScrollbarAnimationSource { 0 };
double m_overlayScrollbarAnimationTarget { 0 };
double m_overlayScrollbarAnimationCurrent { 0 };
MonotonicTime m_overlayScrollbarAnimationStartTime;
MonotonicTime m_overlayScrollbarAnimationEndTime;
};
}
#endif // ScrollAnimatorGtk_h