chromium/src/third_party/blink/renderer/core/scroll/scrollbar_theme_overlay_mock.h

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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_SCROLL_SCROLLBAR_THEME_OVERLAY_MOCK_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_SCROLL_SCROLLBAR_THEME_OVERLAY_MOCK_H_

#include "third_party/blink/renderer/core/scroll/scrollbar_theme_overlay_mobile.h"

namespace blink {

class CORE_EXPORT ScrollbarThemeOverlayMock
    : public ScrollbarThemeOverlayMobile {
 public:
  // These parameters should be the same as those used by
  // cc::SolidColorScrollbarLayerImpl to make sure composited and
  // non-composited scrollbars have the same appearance for tests using mock
  // overlay scrollbars.
  ScrollbarThemeOverlayMock()
      : ScrollbarThemeOverlayMobile(3, 4, Color(128, 128, 128, 128)) {}

  base::TimeDelta OverlayScrollbarFadeOutDelay() const override {
    return delay_;
  }
  base::TimeDelta OverlayScrollbarFadeOutDuration() const override {
    return base::TimeDelta();
  }

  void SetOverlayScrollbarFadeOutDelay(base::TimeDelta delay) {
    delay_ = delay;
  }

  bool ShouldSnapBackToDragOrigin(const Scrollbar& scrollbar,
                                  const WebMouseEvent& evt) override {
    return false;
  }

  int MinimumThumbLength(const Scrollbar& scrollbar) override {
    return ThumbThickness(scrollbar.ScaleFromDIP());
  }

 private:
  bool IsMockTheme() const final { return true; }

  base::TimeDelta delay_;
};

}  // namespace blink
#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_SCROLL_SCROLLBAR_THEME_OVERLAY_MOCK_H_