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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.
*/
#include "config.h"
#include "ScrollbarThemeSafari.h"
#if USE(SAFARI_THEME)
#include "GraphicsContext.h"
#include "IntRect.h"
#include "Page.h"
#include "PlatformMouseEvent.h"
#include "ScrollableArea.h"
#include "Scrollbar.h"
#include "ScrollbarThemeWin.h"
#include "Settings.h"
#include "SoftLinking.h"
#include <CoreGraphics/CoreGraphics.h>
// If you have an empty placeholder SafariThemeConstants.h, then include SafariTheme.h
// This is a workaround until a version of WebKitSupportLibrary is released with an updated SafariThemeConstants.h
#include <SafariTheme/SafariThemeConstants.h>
#ifndef SafariThemeConstants_h
#include <SafariTheme/SafariTheme.h>
#endif
// FIXME: There are repainting problems due to Aqua scroll bar buttons' visual overflow.
using namespace std;
namespace WebCore {
using namespace SafariTheme;
ScrollbarTheme* ScrollbarTheme::nativeTheme()
{
static ScrollbarThemeSafari safariTheme;
static ScrollbarThemeWin windowsTheme;
if (Settings::shouldPaintNativeControls())
return &windowsTheme;
return &safariTheme;
}
// FIXME: Get these numbers from CoreUI.
static int cScrollbarThickness[] = { 15, 11 };
static int cRealButtonLength[] = { 28, 21 };
static int cButtonInset[] = { 14, 11 };
static int cButtonHitInset[] = { 3, 2 };
// cRealButtonLength - cButtonInset
static int cButtonLength[] = { 14, 10 };
static int cThumbMinLength[] = { 26, 20 };
#ifdef DEBUG_ALL
SOFT_LINK_DEBUG_LIBRARY(SafariTheme)
#else
SOFT_LINK_LIBRARY(SafariTheme)
#endif
SOFT_LINK(SafariTheme, paintThemePart, void, __stdcall,
(ThemePart part, CGContextRef context, const CGRect& rect, NSControlSize size, ThemeControlState state),
(part, context, rect, size, state))
static ScrollbarControlState scrollbarControlStateFromThemeState(ThemeControlState state)
{
ScrollbarControlState s = 0;
if (state & ActiveState)
s |= ActiveScrollbarState;
if (state & EnabledState)
s |= EnabledScrollbarState;
if (state & PressedState)
s |= PressedScrollbarState;
return s;
}
ScrollbarThemeSafari::~ScrollbarThemeSafari()
{
}
int ScrollbarThemeSafari::scrollbarThickness(ScrollbarControlSize controlSize)
{
return cScrollbarThickness[controlSize];
}
bool ScrollbarThemeSafari::hasButtons(Scrollbar* scrollbar)
{
return scrollbar->enabled() && (scrollbar->orientation() == HorizontalScrollbar ?
scrollbar->width() :
scrollbar->height()) >= 2 * (cRealButtonLength[scrollbar->controlSize()] - cButtonHitInset[scrollbar->controlSize()]);
}
bool ScrollbarThemeSafari::hasThumb(Scrollbar* scrollbar)
{
return scrollbar->enabled() && (scrollbar->orientation() == HorizontalScrollbar ?
scrollbar->width() :
scrollbar->height()) >= 2 * cButtonInset[scrollbar->controlSize()] + cThumbMinLength[scrollbar->controlSize()] + 1;
}
static IntRect buttonRepaintRect(const IntRect& buttonRect, ScrollbarOrientation orientation, ScrollbarControlSize controlSize, bool start)
{
IntRect paintRect(buttonRect);
if (orientation == HorizontalScrollbar) {
paintRect.setWidth(cRealButtonLength[controlSize]);
if (!start)
paintRect.setX(buttonRect.x() - (cRealButtonLength[controlSize] - buttonRect.width()));
} else {
paintRect.setHeight(cRealButtonLength[controlSize]);
if (!start)
paintRect.setY(buttonRect.y() - (cRealButtonLength[controlSize] - buttonRect.height()));
}
return paintRect;
}
IntRect ScrollbarThemeSafari::backButtonRect(Scrollbar* scrollbar, ScrollbarPart part, bool painting)
{
IntRect result;
// Windows just has single arrows.
if (part == BackButtonEndPart)
return result;
int thickness = scrollbarThickness(scrollbar->controlSize());
if (scrollbar->orientation() == HorizontalScrollbar)
result = IntRect(scrollbar->x(), scrollbar->y(), cButtonLength[scrollbar->controlSize()], thickness);
else
result = IntRect(scrollbar->x(), scrollbar->y(), thickness, cButtonLength[scrollbar->controlSize()]);
if (painting)
return buttonRepaintRect(result, scrollbar->orientation(), scrollbar->controlSize(), true);
return result;
}
IntRect ScrollbarThemeSafari::forwardButtonRect(Scrollbar* scrollbar, ScrollbarPart part, bool painting)
{
IntRect result;
// Windows just has single arrows.
if (part == ForwardButtonStartPart)
return result;
int thickness = scrollbarThickness(scrollbar->controlSize());
if (scrollbar->orientation() == HorizontalScrollbar)
result = IntRect(scrollbar->x() + scrollbar->width() - cButtonLength[scrollbar->controlSize()], scrollbar->y(), cButtonLength[scrollbar->controlSize()], thickness);
else
result = IntRect(scrollbar->x(), scrollbar->y() + scrollbar->height() - cButtonLength[scrollbar->controlSize()], thickness, cButtonLength[scrollbar->controlSize()]);
if (painting)
return buttonRepaintRect(result, scrollbar->orientation(), scrollbar->controlSize(), false);
return result;
}
static IntRect trackRepaintRect(const IntRect& trackRect, ScrollbarOrientation orientation, ScrollbarControlSize controlSize)
{
IntRect paintRect(trackRect);
if (orientation == HorizontalScrollbar)
paintRect.inflateX(cButtonLength[controlSize]);
else
paintRect.inflateY(cButtonLength[controlSize]);
return paintRect;
}
IntRect ScrollbarThemeSafari::trackRect(Scrollbar* scrollbar, bool painting)
{
if (painting || !hasButtons(scrollbar))
return scrollbar->frameRect();
IntRect result;
int thickness = scrollbarThickness(scrollbar->controlSize());
if (scrollbar->orientation() == HorizontalScrollbar)
return IntRect(scrollbar->x() + cButtonLength[scrollbar->controlSize()], scrollbar->y(), scrollbar->width() - 2 * cButtonLength[scrollbar->controlSize()], thickness);
return IntRect(scrollbar->x(), scrollbar->y() + cButtonLength[scrollbar->controlSize()], thickness, scrollbar->height() - 2 * cButtonLength[scrollbar->controlSize()]);
}
int ScrollbarThemeSafari::minimumThumbLength(Scrollbar* scrollbar)
{
return cThumbMinLength[scrollbar->controlSize()];
}
bool ScrollbarThemeSafari::shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent& evt)
{
return evt.shiftKey() && evt.button() == LeftButton;
}
void ScrollbarThemeSafari::paintTrackBackground(GraphicsContext* graphicsContext, Scrollbar* scrollbar, const IntRect& trackRect)
{
if (!SafariThemeLibrary())
return;
NSControlSize size = scrollbar->controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize;
ThemeControlState state = 0;
if (scrollbar->scrollableArea()->isActive())
state |= ActiveState;
if (hasButtons(scrollbar))
state |= EnabledState;
paintThemePart(scrollbar->orientation() == VerticalScrollbar ? VScrollTrackPart : HScrollTrackPart, graphicsContext->platformContext(), trackRect, size, state);
}
void ScrollbarThemeSafari::paintButton(GraphicsContext* graphicsContext, Scrollbar* scrollbar, const IntRect& buttonRect, ScrollbarPart part)
{
if (!SafariThemeLibrary())
return;
NSControlSize size = scrollbar->controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize;
ThemeControlState state = 0;
if (scrollbar->scrollableArea()->isActive())
state |= ActiveState;
if (hasButtons(scrollbar))
state |= EnabledState;
if (scrollbar->pressedPart() == part)
state |= PressedState;
if (part == BackButtonStartPart)
paintThemePart(scrollbar->orientation() == VerticalScrollbar ? ScrollUpArrowPart : ScrollLeftArrowPart, graphicsContext->platformContext(),
buttonRect, size, state);
else if (part == ForwardButtonEndPart)
paintThemePart(scrollbar->orientation() == VerticalScrollbar ? ScrollDownArrowPart : ScrollRightArrowPart, graphicsContext->platformContext(),
buttonRect, size, state);
}
void ScrollbarThemeSafari::paintThumb(GraphicsContext* graphicsContext, Scrollbar* scrollbar, const IntRect& thumbRect)
{
if (!SafariThemeLibrary())
return;
NSControlSize size = scrollbar->controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize;
ThemeControlState state = 0;
if (scrollbar->scrollableArea()->isActive())
state |= ActiveState;
if (hasThumb(scrollbar))
state |= EnabledState;
if (scrollbar->pressedPart() == ThumbPart)
state |= PressedState;
paintThemePart(scrollbar->orientation() == VerticalScrollbar ? VScrollThumbPart : HScrollThumbPart, graphicsContext->platformContext(),
thumbRect, size, state);
}
}
#endif
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