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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 ScrollbarThemeMac_h
#define ScrollbarThemeMac_h
#include "platform/mac/NSScrollerImpDetails.h"
#include "platform/scroll/ScrollbarTheme.h"
typedef id ScrollbarPainter;
namespace blink {
class Pattern;
class PLATFORM_EXPORT ScrollbarThemeMac : public ScrollbarTheme {
public:
~ScrollbarThemeMac() override;
void registerScrollbar(ScrollbarThemeClient&) override;
void unregisterScrollbar(ScrollbarThemeClient&) override;
void preferencesChanged(float initialButtonDelay,
float autoscrollButtonDelay,
NSScrollerStyle preferredScrollerStyle,
bool redraw,
WebScrollbarButtonsPlacement);
bool supportsControlTints() const override { return true; }
// On Mac, the painting code itself animates the opacity so there's no need
// to disable in order to make the scrollbars invisible. In fact,
// disabling/enabling causes invalidations which can cause endless loops as
// Mac queues up scrollbar paint timers.
bool shouldDisableInvisibleScrollbars() const override { return false; }
double initialAutoscrollTimerDelay() override;
double autoscrollTimerDelay() override;
void paintTickmarks(GraphicsContext&,
const Scrollbar&,
const IntRect&) override;
bool shouldRepaintAllPartsOnInvalidation() const override { return false; }
ScrollbarPart invalidateOnThumbPositionChange(
const ScrollbarThemeClient&,
float oldPosition,
float newPosition) const override;
void updateEnabledState(const ScrollbarThemeClient&) override;
int scrollbarThickness(ScrollbarControlSize = RegularScrollbar) override;
bool usesOverlayScrollbars() const override;
void updateScrollbarOverlayColorTheme(const ScrollbarThemeClient&) override;
WebScrollbarButtonsPlacement buttonsPlacement() const override;
void setNewPainterForScrollbar(ScrollbarThemeClient&, ScrollbarPainter);
ScrollbarPainter painterForScrollbar(const ScrollbarThemeClient&) const;
void paintTrackBackground(GraphicsContext&,
const Scrollbar&,
const IntRect&) override;
void paintThumb(GraphicsContext&, const Scrollbar&, const IntRect&) override;
float thumbOpacity(const ScrollbarThemeClient&) const override;
static NSScrollerStyle recommendedScrollerStyle();
protected:
int maxOverlapBetweenPages() override { return 40; }
bool shouldDragDocumentInsteadOfThumb(const ScrollbarThemeClient&,
const PlatformMouseEvent&) override;
int scrollbarPartToHIPressedState(ScrollbarPart);
virtual void updateButtonPlacement(WebScrollbarButtonsPlacement) {}
IntRect trackRect(const ScrollbarThemeClient&,
bool painting = false) override;
IntRect backButtonRect(const ScrollbarThemeClient&,
ScrollbarPart,
bool painting = false) override;
IntRect forwardButtonRect(const ScrollbarThemeClient&,
ScrollbarPart,
bool painting = false) override;
bool hasButtons(const ScrollbarThemeClient&) override { return false; }
bool hasThumb(const ScrollbarThemeClient&) override;
int minimumThumbLength(const ScrollbarThemeClient&) override;
int tickmarkBorderWidth() override { return 1; }
RefPtr<Pattern> m_overhangPattern;
};
}
#endif // ScrollbarThemeMac_h
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