renderthememac.mm

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            // Use theme independent default
            break;
        case CSSValueButtonface:
            // We use this value instead of NSColor's controlColor to avoid website incompatibilities.
            // We may want to change this to use the NSColor in future.
            color = 0xFFC0C0C0;
            break;
        case CSSValueButtonhighlight:
            color = convertNSColorToColor([NSColor controlHighlightColor]);
            break;
        case CSSValueButtonshadow:
            color = convertNSColorToColor([NSColor controlShadowColor]);
            break;
        case CSSValueButtontext:
            color = convertNSColorToColor([NSColor controlTextColor]);
            break;
        case CSSValueCaptiontext:
            color = convertNSColorToColor([NSColor textColor]);
            break;
        case CSSValueGraytext:
            color = convertNSColorToColor([NSColor disabledControlTextColor]);
            break;
        case CSSValueHighlight:
            color = convertNSColorToColor([NSColor selectedTextBackgroundColor]);
            break;
        case CSSValueHighlighttext:
            color = convertNSColorToColor([NSColor selectedTextColor]);
            break;
        case CSSValueInactiveborder:
            color = convertNSColorToColor([NSColor controlBackgroundColor]);
            break;
        case CSSValueInactivecaption:
            color = convertNSColorToColor([NSColor controlBackgroundColor]);
            break;
        case CSSValueInactivecaptiontext:
            color = convertNSColorToColor([NSColor textColor]);
            break;
        case CSSValueInfobackground:
            // There is no corresponding NSColor for this so we use a hard coded value.
            color = 0xFFFBFCC5;
            break;
        case CSSValueInfotext:
            color = convertNSColorToColor([NSColor textColor]);
            break;
        case CSSValueMenu:
            color = menuBackgroundColor();
            break;
        case CSSValueMenutext:
            color = convertNSColorToColor([NSColor selectedMenuItemTextColor]);
            break;
        case CSSValueScrollbar:
            color = convertNSColorToColor([NSColor scrollBarColor]);
            break;
        case CSSValueText:
            color = convertNSColorToColor([NSColor textColor]);
            break;
        case CSSValueThreeddarkshadow:
            color = convertNSColorToColor([NSColor controlDarkShadowColor]);
            break;
        case CSSValueThreedshadow:
            color = convertNSColorToColor([NSColor shadowColor]);
            break;
        case CSSValueThreedface:
            // We use this value instead of NSColor's controlColor to avoid website incompatibilities.
            // We may want to change this to use the NSColor in future.
            color = 0xFFC0C0C0;
            break;
        case CSSValueThreedhighlight:
            color = convertNSColorToColor([NSColor highlightColor]);
            break;
        case CSSValueThreedlightshadow:
            color = convertNSColorToColor([NSColor controlLightHighlightColor]);
            break;
        case CSSValueWindow:
            color = convertNSColorToColor([NSColor windowBackgroundColor]);
            break;
        case CSSValueWindowframe:
            color = convertNSColorToColor([NSColor windowFrameColor]);
            break;
        case CSSValueWindowtext:
            color = convertNSColorToColor([NSColor windowFrameTextColor]);
            break;
    }

    if (!color.isValid())
        color = RenderTheme::systemColor(cssValueId);

    if (color.isValid())
        m_systemColorCache.set(cssValueId, color.rgb());

    return color;
}

bool RenderThemeMac::isControlStyled(const RenderStyle* style, const BorderData& border,
                                     const FillLayer& background, const Color& backgroundColor) const
{
    if (style->appearance() == TextFieldPart || style->appearance() == TextAreaPart || style->appearance() == ListboxPart)
        return style->border() != border;
        
    // FIXME: This is horrible, but there is not much else that can be done.  Menu lists cannot draw properly when
    // scaled.  They can't really draw properly when transformed either.  We can't detect the transform case at style
    // adjustment time so that will just have to stay broken.  We can however detect that we're zooming.  If zooming
    // is in effect we treat it like the control is styled.
    if (style->appearance() == MenulistPart && style->effectiveZoom() != 1.0f)
        return true;

    return RenderTheme::isControlStyled(style, border, background, backgroundColor);
}

void RenderThemeMac::adjustRepaintRect(const RenderObject* o, IntRect& r)
{
    ControlPart part = o->style()->appearance();
    
#if USE(NEW_THEME)
    switch (part) {
        case CheckboxPart:
        case RadioPart:
        case PushButtonPart:
        case SquareButtonPart:
        case DefaultButtonPart:
        case ButtonPart:
            return RenderTheme::adjustRepaintRect(o, r);
        default:
            break;
    }
#endif

    float zoomLevel = o->style()->effectiveZoom();

    if (part == MenulistPart) {
        setPopupButtonCellState(o, r);
        IntSize size = popupButtonSizes()[[popupButton() controlSize]];
        size.setHeight(size.height() * zoomLevel);
        size.setWidth(r.width());
        r = inflateRect(r, size, popupButtonMargins(), zoomLevel);
    }
}

IntRect RenderThemeMac::inflateRect(const IntRect& r, const IntSize& size, const int* margins, float zoomLevel) const
{
    // Only do the inflation if the available width/height are too small.  Otherwise try to
    // fit the glow/check space into the available box's width/height.
    int widthDelta = r.width() - (size.width() + margins[leftMargin] * zoomLevel + margins[rightMargin] * zoomLevel);
    int heightDelta = r.height() - (size.height() + margins[topMargin] * zoomLevel + margins[bottomMargin] * zoomLevel);
    IntRect result(r);
    if (widthDelta < 0) {
        result.setX(result.x() - margins[leftMargin] * zoomLevel);
        result.setWidth(result.width() - widthDelta);
    }
    if (heightDelta < 0) {
        result.setY(result.y() - margins[topMargin] * zoomLevel);
        result.setHeight(result.height() - heightDelta);
    }
    return result;
}

FloatRect RenderThemeMac::convertToPaintingRect(const RenderObject* inputRenderer, const RenderObject* partRenderer, const FloatRect& inputRect, const IntRect& r) const
{
    FloatRect partRect(inputRect);
    
    // Compute an offset between the part renderer and the input renderer
    FloatSize offsetFromInputRenderer;
    const RenderObject* renderer = partRenderer;
    while (renderer && renderer != inputRenderer) {
        RenderObject* containingRenderer = renderer->container();
        offsetFromInputRenderer -= renderer->offsetFromContainer(containingRenderer);
        renderer = containingRenderer;
    }
    // If the input renderer was not a container, something went wrong
    ASSERT(renderer == inputRenderer);
    // Move the rect into partRenderer's coords
    partRect.move(offsetFromInputRenderer);
    // Account for the local drawing offset (tx, ty)
    partRect.move(r.x(), r.y());

    return partRect;
}

void RenderThemeMac::updateCheckedState(NSCell* cell, const RenderObject* o)
{
    bool oldIndeterminate = [cell state] == NSMixedState;
    bool indeterminate = isIndeterminate(o);
    bool checked = isChecked(o);

    if (oldIndeterminate != indeterminate) {
        [cell setState:indeterminate ? NSMixedState : (checked ? NSOnState : NSOffState)];
        return;
    }

    bool oldChecked = [cell state] == NSOnState;
    if (checked != oldChecked)
        [cell setState:checked ? NSOnState : NSOffState];
}

void RenderThemeMac::updateEnabledState(NSCell* cell, const RenderObject* o)
{
    bool oldEnabled = [cell isEnabled];
    bool enabled = isEnabled(o);
    if (enabled != oldEnabled)
        [cell setEnabled:enabled];
}

void RenderThemeMac::updateFocusedState(NSCell* cell, const RenderObject* o)
{
    bool oldFocused = [cell showsFirstResponder];
    bool focused = isFocused(o) && o->style()->outlineStyleIsAuto();
    if (focused != oldFocused)
        [cell setShowsFirstResponder:focused];
}

void RenderThemeMac::updatePressedState(NSCell* cell, const RenderObject* o)
{
    bool oldPressed = [cell isHighlighted];
    bool pressed = (o->node() && o->node()->active());
    if (pressed != oldPressed)
        [cell setHighlighted:pressed];
}

bool RenderThemeMac::controlSupportsTints(const RenderObject* o) const
{
    // An alternate way to implement this would be to get the appropriate cell object
    // and call the private _needRedrawOnWindowChangedKeyState method. An advantage of
    // that would be that we would match AppKit behavior more closely, but a disadvantage
    // would be that we would rely on an AppKit SPI method.

    if (!isEnabled(o))
        return false;

    // Checkboxes only have tint when checked.
    if (o->style()->appearance() == CheckboxPart)
        return isChecked(o);

    // For now assume other controls have tint if enabled.
    return true;
}

NSControlSize RenderThemeMac::controlSizeForFont(RenderStyle* style) const
{
    int fontSize = style->fontSize();
    if (fontSize >= 16)
        return NSRegularControlSize;
    if (fontSize >= 11)
        return NSSmallControlSize;
    return NSMiniControlSize;
}

void RenderThemeMac::setControlSize(NSCell* cell, const IntSize* sizes, const IntSize& minSize, float zoomLevel)
{
    NSControlSize size;
    if (minSize.width() >= static_cast<int>(sizes[NSRegularControlSize].width() * zoomLevel) &&
        minSize.height() >= static_cast<int>(sizes[NSRegularControlSize].height() * zoomLevel))
        size = NSRegularControlSize;
    else if (minSize.width() >= static_cast<int>(sizes[NSSmallControlSize].width() * zoomLevel) &&
             minSize.height() >= static_cast<int>(sizes[NSSmallControlSize].height() * zoomLevel))
        size = NSSmallControlSize;
    else
        size = NSMiniControlSize;
    if (size != [cell controlSize]) // Only update if we have to, since AppKit does work even if the size is the same.
        [cell setControlSize:size];
}

IntSize RenderThemeMac::sizeForFont(RenderStyle* style, const IntSize* sizes) const
{
    if (style->effectiveZoom() != 1.0f) {
        IntSize result = sizes[controlSizeForFont(style)];
        return IntSize(result.width() * style->effectiveZoom(), result.height() * style->effectiveZoom());
    }
    return sizes[controlSizeForFont(style)];
}

IntSize RenderThemeMac::sizeForSystemFont(RenderStyle* style, const IntSize* sizes) const
{
    if (style->effectiveZoom() != 1.0f) {
        IntSize result = sizes[controlSizeForSystemFont(style)];
        return IntSize(result.width() * style->effectiveZoom(), result.height() * style->effectiveZoom());
    }
    return sizes[controlSizeForSystemFont(style)];
}

void RenderThemeMac::setSizeFromFont(RenderStyle* style, const IntSize* sizes) const
{
    // FIXME: Check is flawed, since it doesn't take min-width/max-width into account.
    IntSize size = sizeForFont(style, sizes);
    if (style->width().isIntrinsicOrAuto() && size.width() > 0)
        style->setWidth(Length(size.width(), Fixed));
    if (style->height().isAuto() && size.height() > 0)
        style->setHeight(Length(size.height(), Fixed));
}

void RenderThemeMac::setFontFromControlSize(CSSStyleSelector*, RenderStyle* style, NSControlSize controlSize) const
{
    FontDescription fontDescription;
    fontDescription.setIsAbsoluteSize(true);
    fontDescription.setGenericFamily(FontDescription::SerifFamily);

    NSFont* font = [NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize:controlSize]];
    fontDescription.firstFamily().setFamily([font familyName]);
    fontDescription.setComputedSize([font pointSize] * style->effectiveZoom());
    fontDescription.setSpecifiedSize([font pointSize] * style->effectiveZoom());

    // Reset line height
    style->setLineHeight(RenderStyle::initialLineHeight());

    if (style->setFontDescription(fontDescription))
        style->font().update(0);
}

NSControlSize RenderThemeMac::controlSizeForSystemFont(RenderStyle* style) const
{
    int fontSize = style->fontSize();
    if (fontSize >= [NSFont systemFontSizeForControlSize:NSRegularControlSize])
        return NSRegularControlSize;
    if (fontSize >= [NSFont systemFontSizeForControlSize:NSSmallControlSize])
        return NSSmallControlSize;
    return NSMiniControlSize;
}

bool RenderThemeMac::paintTextField(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
{
    LocalCurrentGraphicsContext localContext(paintInfo.context);
    wkDrawBezeledTextFieldCell(r, isEnabled(o) && !isReadOnlyControl(o));
    return false;
}

void RenderThemeMac::adjustTextFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const
{
}

bool RenderThemeMac::paintCapsLockIndicator(RenderObject*, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
{
    if (paintInfo.context->paintingDisabled())
        return true;

    LocalCurrentGraphicsContext localContext(paintInfo.context);
    wkDrawCapsLockIndicator(paintInfo.context->platformContext(), r);
    
    return false;