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()]);
}
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;
}
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;
}
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.isScrollableAreaActive())
state |= ActiveState;
if (hasButtons(scrollbar))
state |= EnabledState;
paintThemePart(scrollbar.orientation() == VerticalScrollbar ? VScrollTrackPart : HScrollTrackPart, graphicsContext.platformContext(), trackRect, size, state);
}
bool ScrollbarThemeWin::shouldSnapBackToDragOrigin(Scrollbar& scrollbar, const PlatformMouseEvent& evt)
{
// Find the rect within which we shouldn't snap, by expanding the track rect
// in both dimensions.
IntRect rect = trackRect(scrollbar);
const bool horz = scrollbar.orientation() == HorizontalScrollbar;
const int thickness = scrollbarThickness(scrollbar.controlSize());
rect.inflateX((horz ? kOffEndMultiplier : kOffSideMultiplier) * thickness);
rect.inflateY((horz ? kOffSideMultiplier : kOffEndMultiplier) * thickness);
// Convert the event to local coordinates.
IntPoint mousePosition = scrollbar.convertFromContainingWindow(evt.position());
mousePosition.move(scrollbar.x(), scrollbar.y());
// We should snap iff the event is outside our calculated rect.
return !rect.contains(mousePosition);
}
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.isScrollableAreaActive())
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 ScrollbarThemeGtk::updateThemeProperties()
{
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
m_thumbFatness = metrics.slider_width;
m_troughBorderWidth = metrics.trough_border;
m_stepperSize = metrics.stepper_size;
m_stepperSpacing = metrics.stepper_spacing;
m_minThumbLength = metrics.min_slider_size;
m_troughUnderSteppers = metrics.trough_under_steppers;
m_hasForwardButtonStartPart = metrics.has_secondary_forward_stepper;
m_hasBackButtonEndPart = metrics.has_secondary_backward_stepper;
if (!gScrollbars)
return;
// Update the thickness of every interior frame scrollbar widget. The
// platform-independent scrollbar them code isn't yet smart enough to get
// this information when it paints.
HashSet<Scrollbar*>::iterator end = gScrollbars->end();
for (HashSet<Scrollbar*>::iterator it = gScrollbars->begin(); it != end; ++it) {
Scrollbar* scrollbar = (*it);
// Top-level scrollbar i.e. scrollbars who have a parent ScrollView
// with no parent are native, and thus do not need to be resized.
if (!scrollbar->parent() || !scrollbar->parent()->parent())
return;
int thickness = scrollbarThickness(scrollbar->controlSize());
if (scrollbar->orientation() == HorizontalScrollbar)
scrollbar->setFrameRect(IntRect(0, scrollbar->parent()->height() - thickness, scrollbar->width(), thickness));
else
scrollbar->setFrameRect(IntRect(scrollbar->parent()->width() - thickness, 0, thickness, scrollbar->height()));
}
}
int ScrollbarThemeSafari::minimumThumbLength(Scrollbar& scrollbar)
{
return cThumbMinLength[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;
}
bool ScrollbarThemeSafari::hasButtons(Scrollbar& scrollbar)
{
return scrollbar.enabled() && (scrollbar.orientation() == HorizontalScrollbar ?
scrollbar.width() :
scrollbar.height()) >= 2 * (cRealButtonLength[scrollbar.controlSize()] - cButtonHitInset[scrollbar.controlSize()]);
}