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/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LayoutScrollbarTheme_h
#define LayoutScrollbarTheme_h
#include "platform/scroll/ScrollbarTheme.h"
namespace blink {
class PlatformMouseEvent;
class LayoutScrollbarTheme final : public ScrollbarTheme {
public:
~LayoutScrollbarTheme() override { }
int scrollbarThickness(ScrollbarControlSize controlSize) override { return ScrollbarTheme::theme().scrollbarThickness(controlSize); }
WebScrollbarButtonsPlacement buttonsPlacement() const override { return ScrollbarTheme::theme().buttonsPlacement(); }
void paintScrollCorner(GraphicsContext&, const DisplayItemClient&, const IntRect& cornerRect) override;
bool shouldCenterOnThumb(const ScrollbarThemeClient& scrollbar, const PlatformMouseEvent& event) override { return ScrollbarTheme::theme().shouldCenterOnThumb(scrollbar, event); }
bool shouldSnapBackToDragOrigin(const ScrollbarThemeClient& scrollbar, const PlatformMouseEvent& event) override { return ScrollbarTheme::theme().shouldSnapBackToDragOrigin(scrollbar, event); }
double initialAutoscrollTimerDelay() override { return ScrollbarTheme::theme().initialAutoscrollTimerDelay(); }
double autoscrollTimerDelay() override { return ScrollbarTheme::theme().autoscrollTimerDelay(); }
void registerScrollbar(ScrollbarThemeClient& scrollbar) override { return ScrollbarTheme::theme().registerScrollbar(scrollbar); }
void unregisterScrollbar(ScrollbarThemeClient& scrollbar) override { return ScrollbarTheme::theme().unregisterScrollbar(scrollbar); }
int minimumThumbLength(const ScrollbarThemeClient&) override;
void buttonSizesAlongTrackAxis(const ScrollbarThemeClient&, int& beforeSize, int& afterSize);
static LayoutScrollbarTheme* layoutScrollbarTheme();
protected:
bool hasButtons(const ScrollbarThemeClient&) override;
bool hasThumb(const ScrollbarThemeClient&) override;
IntRect backButtonRect(const ScrollbarThemeClient&, ScrollbarPart, bool painting = false) override;
IntRect forwardButtonRect(const ScrollbarThemeClient&, ScrollbarPart, bool painting = false) override;
IntRect trackRect(const ScrollbarThemeClient&, bool painting = false) override;
void paintScrollbarBackground(GraphicsContext&, const ScrollbarThemeClient&) override;
void paintTrackBackground(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&) override;
void paintTrackPiece(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&, ScrollbarPart) override;
void paintButton(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&, ScrollbarPart) override;
void paintThumb(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&) override;
void paintTickmarks(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&) override;
IntRect constrainTrackRectToTrackPieces(const ScrollbarThemeClient&, const IntRect&) override;
};
} // namespace blink
#endif // LayoutScrollbarTheme_h
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