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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_SCROLL_SCROLLBAR_THEME_AURA_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_SCROLL_SCROLLBAR_THEME_AURA_H_
#include "base/gtest_prod_util.h"
#include "third_party/blink/renderer/core/scroll/scrollbar_theme.h"
namespace blink {
class CORE_EXPORT ScrollbarThemeAura : public ScrollbarTheme {
public:
int ScrollbarThickness(ScrollbarControlSize) override;
protected:
bool NativeThemeHasButtons() override { return true; }
bool HasThumb(const Scrollbar&) override;
IntRect BackButtonRect(const Scrollbar&) override;
IntRect ForwardButtonRect(const Scrollbar&) override;
IntRect TrackRect(const Scrollbar&) override;
int MinimumThumbLength(const Scrollbar&) override;
void PaintTrack(GraphicsContext&, const Scrollbar&, const IntRect&) override;
void PaintButton(GraphicsContext&,
const Scrollbar&,
const IntRect&,
ScrollbarPart) override;
void PaintThumb(GraphicsContext&, const Scrollbar&, const IntRect&) override;
bool ShouldRepaintAllPartsOnInvalidation() const override;
ScrollbarPart PartsToInvalidateOnThumbPositionChange(
const Scrollbar&,
float old_position,
float new_position) const override;
bool ShouldCenterOnThumb(const Scrollbar&, const WebMouseEvent&) override;
// During a thumb drag, if the pointer moves outside a certain threshold in
// the non-scrolling direction, the scroller is expected to "snap back" to the
// location where the drag first originated from.
bool SupportsDragSnapBack() const override;
bool ShouldSnapBackToDragOrigin(const Scrollbar&,
const WebMouseEvent&) override;
private:
FRIEND_TEST_ALL_PREFIXES(ScrollbarThemeAuraTest, ButtonSizeHorizontal);
FRIEND_TEST_ALL_PREFIXES(ScrollbarThemeAuraTest, ButtonSizeVertical);
FRIEND_TEST_ALL_PREFIXES(ScrollbarThemeAuraTest, NoButtonsReturnsSize0);
virtual bool HasScrollbarButtons(ScrollbarOrientation) const;
IntSize ButtonSize(const Scrollbar&);
};
} // namespace blink
#endif