external/webkit r30707

1 files changed, 1707 insertions, 0 deletions

diff --git a/WebCore/rendering/RenderThemeMac.mm b/WebCore/rendering/RenderThemeMac.mm
new file mode 100644
index 0000000..34487d7
--- /dev/null
+++ b/WebCore/rendering/RenderThemeMac.mm
@@ -0,0 +1,1707 @@
+/*
+ * Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#import "config.h"
+#import "RenderThemeMac.h"
+
+#import "BitmapImage.h"
+#import "CSSStyleSelector.h"
+#import "CSSValueKeywords.h"
+#import "Document.h"
+#import "Element.h"
+#import "FoundationExtras.h"
+#import "FrameView.h"
+#import "GraphicsContext.h"
+#import "HTMLInputElement.h"
+#import "HTMLMediaElement.h"
+#import "HTMLNames.h"
+#import "Image.h"
+#import "LocalCurrentGraphicsContext.h"
+#import "RenderSlider.h"
+#import "RenderView.h"
+#import "SharedBuffer.h"
+#import "WebCoreSystemInterface.h"
+#import <Carbon/Carbon.h>
+#import <Cocoa/Cocoa.h>
+#import <wtf/RetainPtr.h>
+#import <math.h>
+
+#ifdef BUILDING_ON_TIGER
+typedef unsigned NSUInteger;
+#endif
+
+using std::min;
+
+// The methods in this file are specific to the Mac OS X platform.
+
+// FIXME: The platform-independent code in this class should be factored out and merged with RenderThemeSafari. 
+
+@interface WebCoreRenderThemeNotificationObserver : NSObject
+{
+    WebCore::RenderTheme *_theme;
+}
+
+- (id)initWithTheme:(WebCore::RenderTheme *)theme;
+- (void)systemColorsDidChange:(NSNotification *)notification;
+
+@end
+
+@implementation WebCoreRenderThemeNotificationObserver
+
+- (id)initWithTheme:(WebCore::RenderTheme *)theme
+{
+    [super init];
+    _theme = theme;
+    
+    return self;
+}
+
+- (void)systemColorsDidChange:(NSNotification *)notification
+{
+    ASSERT([[notification name] isEqualToString:NSSystemColorsDidChangeNotification]);
+    _theme->platformColorsDidChange();
+}
+
+@end
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+enum {
+    topMargin,
+    rightMargin,
+    bottomMargin,
+    leftMargin
+};
+
+enum {
+    topPadding,
+    rightPadding,
+    bottomPadding,
+    leftPadding
+};
+
+RenderTheme* theme()
+{
+    static RenderThemeMac* macTheme = new RenderThemeMac;
+    return macTheme;
+}
+
+RenderThemeMac::RenderThemeMac()
+    : m_isSliderThumbHorizontalPressed(false)
+    , m_isSliderThumbVerticalPressed(false)
+    , m_notificationObserver(AdoptNS, [[WebCoreRenderThemeNotificationObserver alloc] initWithTheme:this])
+{
+    [[NSNotificationCenter defaultCenter] addObserver:m_notificationObserver.get()
+                                                        selector:@selector(systemColorsDidChange:)
+                                                            name:NSSystemColorsDidChangeNotification
+                                                          object:nil];
+}
+
+RenderThemeMac::~RenderThemeMac()
+{
+    [[NSNotificationCenter defaultCenter] removeObserver:m_notificationObserver.get()];
+}
+
+Color RenderThemeMac::platformActiveSelectionBackgroundColor() const
+{
+    NSColor* color = [[NSColor selectedTextBackgroundColor] colorUsingColorSpaceName:NSDeviceRGBColorSpace];
+    return Color(static_cast<int>(255.0 * [color redComponent]), static_cast<int>(255.0 * [color greenComponent]), static_cast<int>(255.0 * [color blueComponent]));
+}
+
+Color RenderThemeMac::platformInactiveSelectionBackgroundColor() const
+{
+    NSColor* color = [[NSColor secondarySelectedControlColor] colorUsingColorSpaceName:NSDeviceRGBColorSpace];
+    return Color(static_cast<int>(255.0 * [color redComponent]), static_cast<int>(255.0 * [color greenComponent]), static_cast<int>(255.0 * [color blueComponent]));
+}
+
+Color RenderThemeMac::activeListBoxSelectionBackgroundColor() const
+{
+    NSColor* color = [[NSColor alternateSelectedControlColor] colorUsingColorSpaceName:NSDeviceRGBColorSpace];
+    return Color(static_cast<int>(255.0 * [color redComponent]), static_cast<int>(255.0 * [color greenComponent]), static_cast<int>(255.0 * [color blueComponent]));
+}
+
+void RenderThemeMac::systemFont(int cssValueId, FontDescription& fontDescription) const
+{
+    static FontDescription systemFont;
+    static FontDescription smallSystemFont;
+    static FontDescription menuFont;
+    static FontDescription labelFont;
+    static FontDescription miniControlFont;
+    static FontDescription smallControlFont;
+    static FontDescription controlFont;
+
+    FontDescription* cachedDesc;
+    NSFont* font = nil;
+    switch (cssValueId) {
+        case CSS_VAL_SMALL_CAPTION:
+            cachedDesc = &smallSystemFont;
+            if (!smallSystemFont.isAbsoluteSize())
+                font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
+            break;
+        case CSS_VAL_MENU:
+            cachedDesc = &menuFont;
+            if (!menuFont.isAbsoluteSize())
+                font = [NSFont menuFontOfSize:[NSFont systemFontSize]];
+            break;
+        case CSS_VAL_STATUS_BAR:
+            cachedDesc = &labelFont;
+            if (!labelFont.isAbsoluteSize())
+                font = [NSFont labelFontOfSize:[NSFont labelFontSize]];
+            break;
+        case CSS_VAL__WEBKIT_MINI_CONTROL:
+            cachedDesc = &miniControlFont;
+            if (!miniControlFont.isAbsoluteSize())
+                font = [NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize:NSMiniControlSize]];
+            break;
+        case CSS_VAL__WEBKIT_SMALL_CONTROL:
+            cachedDesc = &smallControlFont;
+            if (!smallControlFont.isAbsoluteSize())
+                font = [NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize:NSSmallControlSize]];
+            break;
+        case CSS_VAL__WEBKIT_CONTROL:
+            cachedDesc = &controlFont;
+            if (!controlFont.isAbsoluteSize())
+                font = [NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize:NSRegularControlSize]];
+            break;
+        default:
+            cachedDesc = &systemFont;
+            if (!systemFont.isAbsoluteSize())
+                font = [NSFont systemFontOfSize:[NSFont systemFontSize]];
+    }
+
+    if (font) {
+        cachedDesc->setIsAbsoluteSize(true);
+        cachedDesc->setGenericFamily(FontDescription::NoFamily);
+        cachedDesc->firstFamily().setFamily([font familyName]);
+        cachedDesc->setSpecifiedSize([font pointSize]);
+        NSFontTraitMask traits = [[NSFontManager sharedFontManager] traitsOfFont:font];
+        cachedDesc->setBold(traits & NSBoldFontMask);
+        cachedDesc->setItalic(traits & NSItalicFontMask);
+    }
+    fontDescription = *cachedDesc;
+}
+
+static RGBA32 convertNSColorToColor(NSColor *color)
+{
+    NSColor *colorInColorSpace = [color colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
+    if (colorInColorSpace) {
+        static const double scaleFactor = nextafter(256.0, 0.0);
+        return makeRGB(static_cast<int>(scaleFactor * [colorInColorSpace redComponent]),
+            static_cast<int>(scaleFactor * [colorInColorSpace greenComponent]),
+            static_cast<int>(scaleFactor * [colorInColorSpace blueComponent]));
+    }
+
+    // This conversion above can fail if the NSColor in question is an NSPatternColor 
+    // (as many system colors are). These colors are actually a repeating pattern
+    // not just a solid color. To work around this we simply draw a 1x1 image of
+    // the color and use that pixel's color. It might be better to use an average of
+    // the colors in the pattern instead.
+    NSBitmapImageRep *offscreenRep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:nil
+                                                                             pixelsWide:1
+                                                                             pixelsHigh:1
+                                                                          bitsPerSample:8
+                                                                        samplesPerPixel:4
+                                                                               hasAlpha:YES
+                                                                               isPlanar:NO
+                                                                         colorSpaceName:NSCalibratedRGBColorSpace
+                                                                            bytesPerRow:4
+                                                                           bitsPerPixel:32];
+
+    [NSGraphicsContext saveGraphicsState];
+    [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithBitmapImageRep:offscreenRep]];
+    NSEraseRect(NSMakeRect(0, 0, 1, 1));
+    [color drawSwatchInRect:NSMakeRect(0, 0, 1, 1)];
+    [NSGraphicsContext restoreGraphicsState];
+
+    NSUInteger pixel[4];
+    [offscreenRep getPixel:pixel atX:0 y:0];
+
+    [offscreenRep release];
+
+    return makeRGB(pixel[0], pixel[1], pixel[2]);
+}
+
+static RGBA32 menuBackgroundColor()
+{
+    NSBitmapImageRep *offscreenRep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:nil
+                                                                             pixelsWide:1
+                                                                             pixelsHigh:1
+                                                                          bitsPerSample:8
+                                                                        samplesPerPixel:4
+                                                                               hasAlpha:YES
+                                                                               isPlanar:NO
+                                                                         colorSpaceName:NSCalibratedRGBColorSpace
+                                                                            bytesPerRow:4
+                                                                           bitsPerPixel:32];
+
+    CGContextRef context = static_cast<CGContextRef>([[NSGraphicsContext graphicsContextWithBitmapImageRep:offscreenRep] graphicsPort]);
+    CGRect rect = CGRectMake(0, 0, 1, 1);
+    HIThemeMenuDrawInfo drawInfo;
+    drawInfo.version =  0;
+    drawInfo.menuType = kThemeMenuTypePopUp;
+    HIThemeDrawMenuBackground(&rect, &drawInfo, context, kHIThemeOrientationInverted);
+
+    NSUInteger pixel[4];
+    [offscreenRep getPixel:pixel atX:0 y:0];
+
+    [offscreenRep release];
+
+    return makeRGB(pixel[0], pixel[1], pixel[2]);
+}
+
+void RenderThemeMac::platformColorsDidChange()
+{
+    m_systemColorCache.clear();
+    RenderTheme::platformColorsDidChange();
+}
+
+Color RenderThemeMac::systemColor(int cssValueId) const
+{
+    if (m_systemColorCache.contains(cssValueId))
+        return m_systemColorCache.get(cssValueId);
+    
+    Color color;
+    switch (cssValueId) {
+        case CSS_VAL_ACTIVEBORDER:
+            color = convertNSColorToColor([NSColor keyboardFocusIndicatorColor]);
+            break;
+        case CSS_VAL_ACTIVECAPTION:
+            color = convertNSColorToColor([NSColor windowFrameTextColor]);
+            break;
+        case CSS_VAL_APPWORKSPACE:
+            color = convertNSColorToColor([NSColor headerColor]);
+            break;
+        case CSS_VAL_BACKGROUND:
+            // Use theme independent default
+            break;
+        case CSS_VAL_BUTTONFACE:
+            // 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 CSS_VAL_BUTTONHIGHLIGHT:
+            color = convertNSColorToColor([NSColor controlHighlightColor]);
+            break;
+        case CSS_VAL_BUTTONSHADOW:
+            color = convertNSColorToColor([NSColor controlShadowColor]);
+            break;
+        case CSS_VAL_BUTTONTEXT:
+            color = convertNSColorToColor([NSColor controlTextColor]);
+            break;
+        case CSS_VAL_CAPTIONTEXT:
+            color = convertNSColorToColor([NSColor textColor]);
+            break;
+        case CSS_VAL_GRAYTEXT:
+            color = convertNSColorToColor([NSColor disabledControlTextColor]);
+            break;
+        case CSS_VAL_HIGHLIGHT:
+            color = convertNSColorToColor([NSColor selectedTextBackgroundColor]);
+            break;
+        case CSS_VAL_HIGHLIGHTTEXT:
+            color = convertNSColorToColor([NSColor selectedTextColor]);
+            break;
+        case CSS_VAL_INACTIVEBORDER:
+            color = convertNSColorToColor([NSColor controlBackgroundColor]);
+            break;
+        case CSS_VAL_INACTIVECAPTION:
+            color = convertNSColorToColor([NSColor controlBackgroundColor]);
+            break;
+        case CSS_VAL_INACTIVECAPTIONTEXT:
+            color = convertNSColorToColor([NSColor textColor]);
+            break;
+        case CSS_VAL_INFOBACKGROUND:
+            // There is no corresponding NSColor for this so we use a hard coded value.
+            color = 0xFFFBFCC5;
+            break;
+        case CSS_VAL_INFOTEXT:
+            color = convertNSColorToColor([NSColor textColor]);
+            break;
+        case CSS_VAL_MENU:
+            color = menuBackgroundColor();
+            break;
+        case CSS_VAL_MENUTEXT:
+            color = convertNSColorToColor([NSColor selectedMenuItemTextColor]);
+            break;
+        case CSS_VAL_SCROLLBAR:
+            color = convertNSColorToColor([NSColor scrollBarColor]);
+            break;
+        case CSS_VAL_TEXT:
+            color = convertNSColorToColor([NSColor textColor]);
+            break;
+        case CSS_VAL_THREEDDARKSHADOW:
+            color = convertNSColorToColor([NSColor controlDarkShadowColor]);
+            break;
+        case CSS_VAL_THREEDSHADOW:
+            color = convertNSColorToColor([NSColor shadowColor]);
+            break;
+        case CSS_VAL_THREEDFACE:
+            // 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 CSS_VAL_THREEDHIGHLIGHT:
+            color = convertNSColorToColor([NSColor highlightColor]);
+            break;
+        case CSS_VAL_THREEDLIGHTSHADOW:
+            color = convertNSColorToColor([NSColor controlLightHighlightColor]);
+            break;
+        case CSS_VAL_WINDOW:
+            color = convertNSColorToColor([NSColor windowBackgroundColor]);
+            break;
+        case CSS_VAL_WINDOWFRAME:
+            color = convertNSColorToColor([NSColor windowFrameColor]);
+            break;
+        case CSS_VAL_WINDOWTEXT:
+            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 BackgroundLayer& background, const Color& backgroundColor) const
+{
+    if (style->appearance() == TextFieldAppearance || style->appearance() == TextAreaAppearance || style->appearance() == ListboxAppearance)
+        return style->border() != border;
+    return RenderTheme::isControlStyled(style, border, background, backgroundColor);
+}
+
+void RenderThemeMac::adjustRepaintRect(const RenderObject* o, IntRect& r)
+{
+    switch (o->style()->appearance()) {
+        case CheckboxAppearance: {
+            // Since we query the prototype cell, we need to update its state to match.
+            setCheckboxCellState(o, r);
+
+            // We inflate the rect as needed to account for padding included in the cell to accommodate the checkbox
+            // shadow" and the check.  We don't consider this part of the bounds of the control in WebKit.
+            r = inflateRect(r, checkboxSizes()[[checkbox() controlSize]], checkboxMargins());
+            break;
+        }
+        case RadioAppearance: {
+            // Since we query the prototype cell, we need to update its state to match.
+            setRadioCellState(o, r);
+
+            // We inflate the rect as needed to account for padding included in the cell to accommodate the checkbox
+            // shadow" and the check.  We don't consider this part of the bounds of the control in WebKit.
+            r = inflateRect(r, radioSizes()[[radio() controlSize]], radioMargins());
+            break;
+        }
+        case PushButtonAppearance:
+        case ButtonAppearance: {
+            // Since we query the prototype cell, we need to update its state to match.
+            setButtonCellState(o, r);
+
+            // We inflate the rect as needed to account for padding included in the cell to accommodate the checkbox
+            // shadow" and the check.  We don't consider this part of the bounds of the control in WebKit.
+            if ([button() bezelStyle] == NSRoundedBezelStyle)
+                r = inflateRect(r, buttonSizes()[[button() controlSize]], buttonMargins());
+            break;
+        }
+        case MenulistAppearance: {
+            setPopupButtonCellState(o, r);
+            r = inflateRect(r, popupButtonSizes()[[popupButton() controlSize]], popupButtonMargins());
+            break;
+        }
+        default:
+            break;
+    }
+}
+
+IntRect RenderThemeMac::inflateRect(const IntRect& r, const IntSize& size, const int* margins) 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] + margins[rightMargin]);
+    int heightDelta = r.height() - (size.height() + margins[topMargin] + margins[bottomMargin]);
+    IntRect result(r);
+    if (widthDelta < 0) {
+        result.setX(result.x() - margins[leftMargin]);
+        result.setWidth(result.width() - widthDelta);
+    }
+    if (heightDelta < 0) {
+        result.setY(result.y() - margins[topMargin]);
+        result.setHeight(result.height() - heightDelta);
+    }
+    return result;
+}
+
+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->element() && o->element()->active());
+    if (pressed != oldPressed)
+        [cell setHighlighted:pressed];
+}
+
+short RenderThemeMac::baselinePosition(const RenderObject* o) const
+{
+    if (o->style()->appearance() == CheckboxAppearance || o->style()->appearance() == RadioAppearance)
+        return o->marginTop() + o->height() - 2; // The baseline is 2px up from the bottom of the checkbox/radio in AppKit.
+    return RenderTheme::baselinePosition(o);
+}
+
+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() == CheckboxAppearance)
+        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)
+{
+    NSControlSize size;
+    if (minSize.width() >= sizes[NSRegularControlSize].width() &&
+        minSize.height() >= sizes[NSRegularControlSize].height())
+        size = NSRegularControlSize;
+    else if (minSize.width() >= sizes[NSSmallControlSize].width() &&
+             minSize.height() >= sizes[NSSmallControlSize].height())
+        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
+{
+    return sizes[controlSizeForFont(style)];
+}
+
+IntSize RenderThemeMac::sizeForSystemFont(RenderStyle* style, const IntSize* sizes) const
+{
+    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* selector, 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]);
+    fontDescription.setSpecifiedSize([font pointSize]);
+
+    // 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::paintCheckbox(RenderObject* o, const RenderObject::PaintInfo&, const IntRect& r)
+{
+    // Determine the width and height needed for the control and prepare the cell for painting.
+    setCheckboxCellState(o, r);
+
+    // We inflate the rect as needed to account for padding included in the cell to accommodate the checkbox
+    // shadow" and the check.  We don't consider this part of the bounds of the control in WebKit.
+    NSButtonCell* checkbox = this->checkbox();
+    IntRect inflatedRect = inflateRect(r, checkboxSizes()[[checkbox controlSize]], checkboxMargins());
+    [checkbox drawWithFrame:NSRect(inflatedRect) inView:o->view()->frameView()->getDocumentView()];
+    [checkbox setControlView:nil];
+
+    return false;
+}
+
+const IntSize* RenderThemeMac::checkboxSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(14, 14), IntSize(12, 12), IntSize(10, 10) };
+    return sizes;
+}
+
+const int* RenderThemeMac::checkboxMargins() const
+{
+    static const int margins[3][4] =
+    {
+        { 3, 4, 4, 2 },
+        { 4, 3, 3, 3 },
+        { 4, 3, 3, 3 },
+    };
+    return margins[[checkbox() controlSize]];
+}
+
+void RenderThemeMac::setCheckboxCellState(const RenderObject* o, const IntRect& r)
+{
+    NSButtonCell* checkbox = this->checkbox();
+
+    // Set the control size based off the rectangle we're painting into.
+    setControlSize(checkbox, checkboxSizes(), r.size());
+
+    // Update the various states we respond to.
+    updateCheckedState(checkbox, o);
+    updateEnabledState(checkbox, o);
+    updatePressedState(checkbox, o);
+    updateFocusedState(checkbox, o);
+}
+
+void RenderThemeMac::setCheckboxSize(RenderStyle* style) const
+{
+    // If the width and height are both specified, then we have nothing to do.
+    if (!style->width().isIntrinsicOrAuto() && !style->height().isAuto())
+        return;
+
+    // Use the font size to determine the intrinsic width of the control.
+    setSizeFromFont(style, checkboxSizes());
+}
+
+bool RenderThemeMac::paintRadio(RenderObject* o, const RenderObject::PaintInfo&, const IntRect& r)
+{
+    // Determine the width and height needed for the control and prepare the cell for painting.
+    setRadioCellState(o, r);
+
+    // We inflate the rect as needed to account for padding included in the cell to accommodate the checkbox
+    // shadow" and the check.  We don't consider this part of the bounds of the control in WebKit.
+    NSButtonCell* radio = this->radio();
+    IntRect inflatedRect = inflateRect(r, radioSizes()[[radio controlSize]], radioMargins());
+    [radio drawWithFrame:NSRect(inflatedRect) inView:o->view()->frameView()->getDocumentView()];
+    [radio setControlView:nil];
+
+    return false;
+}
+
+const IntSize* RenderThemeMac::radioSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(14, 15), IntSize(12, 13), IntSize(10, 10) };
+    return sizes;
+}
+
+const int* RenderThemeMac::radioMargins() const
+{
+    static const int margins[3][4] =
+    {
+        { 2, 2, 4, 2 },
+        { 3, 2, 3, 2 },
+        { 1, 0, 2, 0 },
+    };
+    return margins[[radio() controlSize]];
+}
+
+void RenderThemeMac::setRadioCellState(const RenderObject* o, const IntRect& r)
+{
+    NSButtonCell* radio = this->radio();
+
+    // Set the control size based off the rectangle we're painting into.
+    setControlSize(radio, radioSizes(), r.size());
+
+    // Update the various states we respond to.
+    updateCheckedState(radio, o);
+    updateEnabledState(radio, o);
+    updatePressedState(radio, o);
+    updateFocusedState(radio, o);
+}
+
+
+void RenderThemeMac::setRadioSize(RenderStyle* style) const
+{
+    // If the width and height are both specified, then we have nothing to do.
+    if (!style->width().isIntrinsicOrAuto() && !style->height().isAuto())
+        return;
+
+    // Use the font size to determine the intrinsic width of the control.
+    setSizeFromFont(style, radioSizes());
+}
+
+void RenderThemeMac::setButtonPaddingFromControlSize(RenderStyle* style, NSControlSize size) const
+{
+    // Just use 8px.  AppKit wants to use 11px for mini buttons, but that padding is just too large
+    // for real-world Web sites (creating a huge necessary minimum width for buttons whose space is
+    // by definition constrained, since we select mini only for small cramped environments.
+    // This also guarantees the HTML4 <button> will match our rendering by default, since we're using a consistent
+    // padding.
+    const int padding = 8;
+    style->setPaddingLeft(Length(padding, Fixed));
+    style->setPaddingRight(Length(padding, Fixed));
+    style->setPaddingTop(Length(0, Fixed));
+    style->setPaddingBottom(Length(0, Fixed));
+}
+
+void RenderThemeMac::adjustButtonStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    // There are three appearance constants for buttons.
+    // (1) Push-button is the constant for the default Aqua system button.  Push buttons will not scale vertically and will not allow
+    // custom fonts or colors.  <input>s use this constant.  This button will allow custom colors and font weights/variants but won't
+    // scale vertically.
+    // (2) square-button is the constant for the square button.  This button will allow custom fonts and colors and will scale vertically.
+    // (3) Button is the constant that means "pick the best button as appropriate."  <button>s use this constant.  This button will
+    // also scale vertically and allow custom fonts and colors.  It will attempt to use Aqua if possible and will make this determination
+    // solely on the rectangle of the control.
+
+    // Determine our control size based off our font.
+    NSControlSize controlSize = controlSizeForFont(style);
+
+    if (style->appearance() == PushButtonAppearance) {
+        // Ditch the border.
+        style->resetBorder();
+
+        // Height is locked to auto.
+        style->setHeight(Length(Auto));
+
+        // White-space is locked to pre
+        style->setWhiteSpace(PRE);
+
+        // Set the button's vertical size.
+        setButtonSize(style);
+
+        // Add in the padding that we'd like to use.
+        setButtonPaddingFromControlSize(style, controlSize);
+
+        // Our font is locked to the appropriate system font size for the control.  To clarify, we first use the CSS-specified font to figure out
+        // a reasonable control size, but once that control size is determined, we throw that font away and use the appropriate
+        // system font for the control size instead.
+        setFontFromControlSize(selector, style, controlSize);
+    } else {
+        // Set a min-height so that we can't get smaller than the mini button.
+        style->setMinHeight(Length(15, Fixed));
+
+        // Reset the top and bottom borders.
+        style->resetBorderTop();
+        style->resetBorderBottom();
+    }
+
+    style->setBoxShadow(0);
+}
+
+const IntSize* RenderThemeMac::buttonSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(0, 21), IntSize(0, 18), IntSize(0, 15) };
+    return sizes;
+}
+
+const int* RenderThemeMac::buttonMargins() const
+{
+    static const int margins[3][4] =
+    {
+        { 4, 6, 7, 6 },
+        { 4, 5, 6, 5 },
+        { 0, 1, 1, 1 },
+    };
+    return margins[[button() controlSize]];
+}
+
+void RenderThemeMac::setButtonSize(RenderStyle* style) const
+{
+    // If the width and height are both specified, then we have nothing to do.
+    if (!style->width().isIntrinsicOrAuto() && !style->height().isAuto())
+        return;
+
+    // Use the font size to determine the intrinsic width of the control.
+    setSizeFromFont(style, buttonSizes());
+}
+
+void RenderThemeMac::setButtonCellState(const RenderObject* o, const IntRect& r)
+{
+    NSButtonCell* button = this->button();
+
+    // Set the control size based off the rectangle we're painting into.
+    if (o->style()->appearance() == SquareButtonAppearance ||
+        r.height() > buttonSizes()[NSRegularControlSize].height()) {
+        // Use the square button
+        if ([button bezelStyle] != NSShadowlessSquareBezelStyle)
+            [button setBezelStyle:NSShadowlessSquareBezelStyle];
+    } else if ([button bezelStyle] != NSRoundedBezelStyle)
+        [button setBezelStyle:NSRoundedBezelStyle];
+
+    setControlSize(button, buttonSizes(), r.size());
+
+    // Update the various states we respond to.
+    updateCheckedState(button, o);
+    updateEnabledState(button, o);
+    updatePressedState(button, o);
+    updateFocusedState(button, o);
+}
+
+bool RenderThemeMac::paintButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    NSButtonCell* button = this->button();
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+
+    // Determine the width and height needed for the control and prepare the cell for painting.
+    setButtonCellState(o, r);
+
+    // We inflate the rect as needed to account for padding included in the cell to accommodate the button
+    // shadow.  We don't consider this part of the bounds of the control in WebKit.
+    IntSize size = buttonSizes()[[button controlSize]];
+    size.setWidth(r.width());
+    IntRect inflatedRect = r;
+    if ([button bezelStyle] == NSRoundedBezelStyle) {
+        // Center the button within the available space.
+        if (inflatedRect.height() > size.height()) {
+            inflatedRect.setY(inflatedRect.y() + (inflatedRect.height() - size.height()) / 2);
+            inflatedRect.setHeight(size.height());
+        }
+
+        // Now inflate it to account for the shadow.
+        inflatedRect = inflateRect(inflatedRect, size, buttonMargins());
+    }
+
+    [button drawWithFrame:NSRect(inflatedRect) inView:o->view()->frameView()->getDocumentView()];
+    [button setControlView:nil];
+
+    return false;
+}
+
+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* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    if (paintInfo.context->paintingDisabled())
+        return true;
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    wkDrawCapsLockIndicator(paintInfo.context->platformContext(), r);
+    
+    return false;
+}
+
+bool RenderThemeMac::paintTextArea(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    wkDrawBezeledTextArea(r, isEnabled(o) && !isReadOnlyControl(o));
+    return false;
+}
+
+void RenderThemeMac::adjustTextAreaStyle(CSSStyleSelector*, RenderStyle*, Element*) const
+{
+}
+
+const int* RenderThemeMac::popupButtonMargins() const
+{
+    static const int margins[3][4] =
+    {
+        { 0, 3, 1, 3 },
+        { 0, 3, 2, 3 },
+        { 0, 1, 0, 1 }
+    };
+    return margins[[popupButton() controlSize]];
+}
+
+const IntSize* RenderThemeMac::popupButtonSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(0, 21), IntSize(0, 18), IntSize(0, 15) };
+    return sizes;
+}
+
+const int* RenderThemeMac::popupButtonPadding(NSControlSize size) const
+{
+    static const int padding[3][4] =
+    {
+        { 2, 26, 3, 8 },
+        { 2, 23, 3, 8 },
+        { 2, 22, 3, 10 }
+    };
+    return padding[size];
+}
+
+bool RenderThemeMac::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    setPopupButtonCellState(o, r);
+
+    NSPopUpButtonCell* popupButton = this->popupButton();
+
+    IntRect inflatedRect = r;
+    IntSize size = popupButtonSizes()[[popupButton controlSize]];
+    size.setWidth(r.width());
+
+    // Now inflate it to account for the shadow.
+    if (r.width() >= minimumMenuListSize(o->style()))
+        inflatedRect = inflateRect(inflatedRect, size, popupButtonMargins());
+
+#ifndef BUILDING_ON_TIGER
+    // On Leopard, the cell will draw outside of the given rect, so we have to clip to the rect
+    paintInfo.context->save();
+    paintInfo.context->clip(inflatedRect);
+#endif
+
+    [popupButton drawWithFrame:inflatedRect inView:o->view()->frameView()->getDocumentView()];
+    [popupButton setControlView:nil];
+
+#ifndef BUILDING_ON_TIGER
+    paintInfo.context->restore();
+#endif
+
+    return false;
+}
+
+const float baseFontSize = 11.0f;
+const float baseArrowHeight = 4.0f;
+const float baseArrowWidth = 5.0f;
+const float baseSpaceBetweenArrows = 2.0f;
+const int arrowPaddingLeft = 6;
+const int arrowPaddingRight = 6;
+const int paddingBeforeSeparator = 4;
+const int baseBorderRadius = 5;
+const int styledPopupPaddingLeft = 8;
+const int styledPopupPaddingTop = 1;
+const int styledPopupPaddingBottom = 2;
+
+static void TopGradientInterpolate(void* info, const CGFloat* inData, CGFloat* outData)
+{
+    static float dark[4] = { 1.0f, 1.0f, 1.0f, 0.4f };
+    static float light[4] = { 1.0f, 1.0f, 1.0f, 0.15f };
+    float a = inData[0];
+    int i = 0;
+    for (i = 0; i < 4; i++)
+        outData[i] = (1.0f - a) * dark[i] + a * light[i];
+}
+
+static void BottomGradientInterpolate(void* info, const CGFloat* inData, CGFloat* outData)
+{
+    static float dark[4] = { 1.0f, 1.0f, 1.0f, 0.0f };
+    static float light[4] = { 1.0f, 1.0f, 1.0f, 0.3f };
+    float a = inData[0];
+    int i = 0;
+    for (i = 0; i < 4; i++)
+        outData[i] = (1.0f - a) * dark[i] + a * light[i];
+}
+
+static void MainGradientInterpolate(void* info, const CGFloat* inData, CGFloat* outData)
+{
+    static float dark[4] = { 0.0f, 0.0f, 0.0f, 0.15f };
+    static float light[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
+    float a = inData[0];
+    int i = 0;
+    for (i = 0; i < 4; i++)
+        outData[i] = (1.0f - a) * dark[i] + a * light[i];
+}
+
+static void TrackGradientInterpolate(void* info, const CGFloat* inData, CGFloat* outData)
+{
+    static float dark[4] = { 0.0f, 0.0f, 0.0f, 0.678f };
+    static float light[4] = { 0.0f, 0.0f, 0.0f, 0.13f };
+    float a = inData[0];
+    int i = 0;
+    for (i = 0; i < 4; i++)
+        outData[i] = (1.0f - a) * dark[i] + a * light[i];
+}
+
+void RenderThemeMac::paintMenuListButtonGradients(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    CGContextRef context = paintInfo.context->platformContext();
+
+    paintInfo.context->save();
+
+    int radius = o->style()->borderTopLeftRadius().width();
+
+    RetainPtr<CGColorSpaceRef> cspace(AdoptCF, CGColorSpaceCreateDeviceRGB());
+
+    FloatRect topGradient(r.x(), r.y(), r.width(), r.height() / 2.0f);
+    struct CGFunctionCallbacks topCallbacks = { 0, TopGradientInterpolate, NULL };
+    RetainPtr<CGFunctionRef> topFunction(AdoptCF, CGFunctionCreate(NULL, 1, NULL, 4, NULL, &topCallbacks));
+    RetainPtr<CGShadingRef> topShading(AdoptCF, CGShadingCreateAxial(cspace.get(), CGPointMake(topGradient.x(), topGradient.y()), CGPointMake(topGradient.x(), topGradient.bottom()), topFunction.get(), false, false));
+
+    FloatRect bottomGradient(r.x() + radius, r.y() + r.height() / 2.0f, r.width() - 2.0f * radius, r.height() / 2.0f);
+    struct CGFunctionCallbacks bottomCallbacks = { 0, BottomGradientInterpolate, NULL };
+    RetainPtr<CGFunctionRef> bottomFunction(AdoptCF, CGFunctionCreate(NULL, 1, NULL, 4, NULL, &bottomCallbacks));
+    RetainPtr<CGShadingRef> bottomShading(AdoptCF, CGShadingCreateAxial(cspace.get(), CGPointMake(bottomGradient.x(),  bottomGradient.y()), CGPointMake(bottomGradient.x(), bottomGradient.bottom()), bottomFunction.get(), false, false));
+
+    struct CGFunctionCallbacks mainCallbacks = { 0, MainGradientInterpolate, NULL };
+    RetainPtr<CGFunctionRef> mainFunction(AdoptCF, CGFunctionCreate(NULL, 1, NULL, 4, NULL, &mainCallbacks));
+    RetainPtr<CGShadingRef> mainShading(AdoptCF, CGShadingCreateAxial(cspace.get(), CGPointMake(r.x(),  r.y()), CGPointMake(r.x(), r.bottom()), mainFunction.get(), false, false));
+
+    RetainPtr<CGShadingRef> leftShading(AdoptCF, CGShadingCreateAxial(cspace.get(), CGPointMake(r.x(),  r.y()), CGPointMake(r.x() + radius, r.y()), mainFunction.get(), false, false));
+
+    RetainPtr<CGShadingRef> rightShading(AdoptCF, CGShadingCreateAxial(cspace.get(), CGPointMake(r.right(),  r.y()), CGPointMake(r.right() - radius, r.y()), mainFunction.get(), false, false));
+    paintInfo.context->save();
+    CGContextClipToRect(context, r);
+    paintInfo.context->addRoundedRectClip(r,
+        o->style()->borderTopLeftRadius(), o->style()->borderTopRightRadius(),
+        o->style()->borderBottomLeftRadius(), o->style()->borderBottomRightRadius());
+    CGContextDrawShading(context, mainShading.get());
+    paintInfo.context->restore();
+
+    paintInfo.context->save();
+    CGContextClipToRect(context, topGradient);
+    paintInfo.context->addRoundedRectClip(enclosingIntRect(topGradient),
+        o->style()->borderTopLeftRadius(), o->style()->borderTopRightRadius(),
+        IntSize(), IntSize());
+    CGContextDrawShading(context, topShading.get());
+    paintInfo.context->restore();
+
+    paintInfo.context->save();
+    CGContextClipToRect(context, bottomGradient);
+    paintInfo.context->addRoundedRectClip(enclosingIntRect(bottomGradient),
+        IntSize(), IntSize(),
+        o->style()->borderBottomLeftRadius(), o->style()->borderBottomRightRadius());
+    CGContextDrawShading(context, bottomShading.get());
+    paintInfo.context->restore();
+
+    paintInfo.context->save();
+    CGContextClipToRect(context, r);
+    paintInfo.context->addRoundedRectClip(r,
+        o->style()->borderTopLeftRadius(), o->style()->borderTopRightRadius(),
+        o->style()->borderBottomLeftRadius(), o->style()->borderBottomRightRadius());
+    CGContextDrawShading(context, leftShading.get());
+    CGContextDrawShading(context, rightShading.get());
+    paintInfo.context->restore();
+
+    paintInfo.context->restore();
+}
+
+bool RenderThemeMac::paintMenuListButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    paintInfo.context->save();
+
+    IntRect bounds = IntRect(r.x() + o->style()->borderLeftWidth(),
+                             r.y() + o->style()->borderTopWidth(),
+                             r.width() - o->style()->borderLeftWidth() - o->style()->borderRightWidth(),
+                             r.height() - o->style()->borderTopWidth() - o->style()->borderBottomWidth());
+    // Draw the gradients to give the styled popup menu a button appearance
+    paintMenuListButtonGradients(o, paintInfo, bounds);
+
+    // Since we actually know the size of the control here, we restrict the font scale to make sure the arrows will fit vertically in the bounds
+    float fontScale = min(o->style()->fontSize() / baseFontSize, bounds.height() / (baseArrowHeight * 2 + baseSpaceBetweenArrows));
+    float centerY = bounds.y() + bounds.height() / 2.0f;
+    float arrowHeight = baseArrowHeight * fontScale;
+    float arrowWidth = baseArrowWidth * fontScale;
+    float leftEdge = bounds.right() - arrowPaddingRight - arrowWidth;
+    float spaceBetweenArrows = baseSpaceBetweenArrows * fontScale;
+
+    if (bounds.width() < arrowWidth + arrowPaddingLeft)
+        return false;
+    
+    paintInfo.context->setFillColor(o->style()->color());
+    paintInfo.context->setStrokeStyle(NoStroke);
+
+    FloatPoint arrow1[3];
+    arrow1[0] = FloatPoint(leftEdge, centerY - spaceBetweenArrows / 2.0f);
+    arrow1[1] = FloatPoint(leftEdge + arrowWidth, centerY - spaceBetweenArrows / 2.0f);
+    arrow1[2] = FloatPoint(leftEdge + arrowWidth / 2.0f, centerY - spaceBetweenArrows / 2.0f - arrowHeight);
+
+    // Draw the top arrow
+    paintInfo.context->drawConvexPolygon(3, arrow1, true);
+
+    FloatPoint arrow2[3];
+    arrow2[0] = FloatPoint(leftEdge, centerY + spaceBetweenArrows / 2.0f);
+    arrow2[1] = FloatPoint(leftEdge + arrowWidth, centerY + spaceBetweenArrows / 2.0f);
+    arrow2[2] = FloatPoint(leftEdge + arrowWidth / 2.0f, centerY + spaceBetweenArrows / 2.0f + arrowHeight);
+
+    // Draw the bottom arrow
+    paintInfo.context->drawConvexPolygon(3, arrow2, true);
+
+    Color leftSeparatorColor(0, 0, 0, 40);
+    Color rightSeparatorColor(255, 255, 255, 40);
+
+    // FIXME: Should the separator thickness and space be scaled up by fontScale?
+    int separatorSpace = 2;
+    int leftEdgeOfSeparator = static_cast<int>(leftEdge - arrowPaddingLeft); // FIXME: Round?
+
+    // Draw the separator to the left of the arrows
+    paintInfo.context->setStrokeThickness(1.0f);
+    paintInfo.context->setStrokeStyle(SolidStroke);
+    paintInfo.context->setStrokeColor(leftSeparatorColor);
+    paintInfo.context->drawLine(IntPoint(leftEdgeOfSeparator, bounds.y()),
+                                IntPoint(leftEdgeOfSeparator, bounds.bottom()));
+
+    paintInfo.context->setStrokeColor(rightSeparatorColor);
+    paintInfo.context->drawLine(IntPoint(leftEdgeOfSeparator + separatorSpace, bounds.y()),
+                                IntPoint(leftEdgeOfSeparator + separatorSpace, bounds.bottom()));
+
+    paintInfo.context->restore();
+    return false;
+}
+
+void RenderThemeMac::adjustMenuListStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    NSControlSize controlSize = controlSizeForFont(style);
+
+    style->resetBorder();
+    style->resetPadding();
+    
+    // Height is locked to auto.
+    style->setHeight(Length(Auto));
+
+    // White-space is locked to pre
+    style->setWhiteSpace(PRE);
+
+    // Set the foreground color to black or gray when we have the aqua look.
+    // Cast to RGB32 is to work around a compiler bug.
+    style->setColor(e->isEnabled() ? static_cast<RGBA32>(Color::black) : Color::darkGray);
+
+    // Set the button's vertical size.
+    setButtonSize(style);
+
+    // Our font is locked to the appropriate system font size for the control.  To clarify, we first use the CSS-specified font to figure out
+    // a reasonable control size, but once that control size is determined, we throw that font away and use the appropriate
+    // system font for the control size instead.
+    setFontFromControlSize(selector, style, controlSize);
+
+    style->setBoxShadow(0);
+}
+
+int RenderThemeMac::popupInternalPaddingLeft(RenderStyle* style) const
+{
+    if (style->appearance() == MenulistAppearance)
+        return popupButtonPadding(controlSizeForFont(style))[leftPadding];
+    if (style->appearance() == MenulistButtonAppearance)
+        return styledPopupPaddingLeft;
+    return 0;
+}
+
+int RenderThemeMac::popupInternalPaddingRight(RenderStyle* style) const
+{
+    if (style->appearance() == MenulistAppearance)
+        return popupButtonPadding(controlSizeForFont(style))[rightPadding];
+    if (style->appearance() == MenulistButtonAppearance) {
+        float fontScale = style->fontSize() / baseFontSize;
+        float arrowWidth = baseArrowWidth * fontScale;
+        return static_cast<int>(ceilf(arrowWidth + arrowPaddingLeft + arrowPaddingRight + paddingBeforeSeparator));
+    }
+    return 0;
+}
+
+int RenderThemeMac::popupInternalPaddingTop(RenderStyle* style) const
+{
+    if (style->appearance() == MenulistAppearance)
+        return popupButtonPadding(controlSizeForFont(style))[topPadding];
+    if (style->appearance() == MenulistButtonAppearance)
+        return styledPopupPaddingTop;
+    return 0;
+}
+
+int RenderThemeMac::popupInternalPaddingBottom(RenderStyle* style) const
+{
+    if (style->appearance() == MenulistAppearance)
+        return popupButtonPadding(controlSizeForFont(style))[bottomPadding];
+    if (style->appearance() == MenulistButtonAppearance)
+        return styledPopupPaddingBottom;
+    return 0;
+}
+
+void RenderThemeMac::adjustMenuListButtonStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    float fontScale = style->fontSize() / baseFontSize;
+
+    style->resetPadding();
+    style->setBorderRadius(IntSize(int(baseBorderRadius + fontScale - 1), int(baseBorderRadius + fontScale - 1))); // FIXME: Round up?
+
+    const int minHeight = 15;
+    style->setMinHeight(Length(minHeight, Fixed));
+    
+    style->setLineHeight(RenderStyle::initialLineHeight());
+}
+
+void RenderThemeMac::setPopupButtonCellState(const RenderObject* o, const IntRect& r)
+{
+    NSPopUpButtonCell* popupButton = this->popupButton();
+
+    // Set the control size based off the rectangle we're painting into.
+    setControlSize(popupButton, popupButtonSizes(), r.size());
+
+    // Update the various states we respond to.
+    updateCheckedState(popupButton, o);
+    updateEnabledState(popupButton, o);
+    updatePressedState(popupButton, o);
+    updateFocusedState(popupButton, o);
+}
+
+const IntSize* RenderThemeMac::menuListSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(9, 0), IntSize(5, 0), IntSize(0, 0) };
+    return sizes;
+}
+
+int RenderThemeMac::minimumMenuListSize(RenderStyle* style) const
+{
+    return sizeForSystemFont(style, menuListSizes()).width();
+}
+
+const int trackWidth = 5;
+const int trackRadius = 2;
+
+void RenderThemeMac::adjustSliderTrackStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    style->setBoxShadow(0);
+}
+
+bool RenderThemeMac::paintSliderTrack(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    IntRect bounds = r;
+
+    if (o->style()->appearance() ==  SliderHorizontalAppearance || o->style()->appearance() ==  MediaSliderAppearance) {
+        bounds.setHeight(trackWidth);
+        bounds.setY(r.y() + r.height() / 2 - trackWidth / 2);
+    } else if (o->style()->appearance() == SliderVerticalAppearance) {
+        bounds.setWidth(trackWidth);
+        bounds.setX(r.x() + r.width() / 2 - trackWidth / 2);
+    }
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    CGContextRef context = paintInfo.context->platformContext();
+    RetainPtr<CGColorSpaceRef> cspace(AdoptCF, CGColorSpaceCreateDeviceRGB());
+
+    paintInfo.context->save();
+    CGContextClipToRect(context, bounds);
+
+    struct CGFunctionCallbacks mainCallbacks = { 0, TrackGradientInterpolate, NULL };
+    RetainPtr<CGFunctionRef> mainFunction(AdoptCF, CGFunctionCreate(NULL, 1, NULL, 4, NULL, &mainCallbacks));
+    RetainPtr<CGShadingRef> mainShading;
+    if (o->style()->appearance() == SliderVerticalAppearance)
+        mainShading.adoptCF(CGShadingCreateAxial(cspace.get(), CGPointMake(bounds.x(),  bounds.bottom()), CGPointMake(bounds.right(), bounds.bottom()), mainFunction.get(), false, false));
+    else
+        mainShading.adoptCF(CGShadingCreateAxial(cspace.get(), CGPointMake(bounds.x(),  bounds.y()), CGPointMake(bounds.x(), bounds.bottom()), mainFunction.get(), false, false));
+
+    IntSize radius(trackRadius, trackRadius);
+    paintInfo.context->addRoundedRectClip(bounds,
+        radius, radius,
+        radius, radius);
+    CGContextDrawShading(context, mainShading.get());
+    paintInfo.context->restore();
+    
+    return false;
+}
+
+void RenderThemeMac::adjustSliderThumbStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    style->setBoxShadow(0);
+}
+
+const float verticalSliderHeightPadding = 0.1f;
+
+bool RenderThemeMac::paintSliderThumb(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    ASSERT(o->parent()->isSlider());
+
+    NSSliderCell* sliderThumbCell = o->style()->appearance() == SliderThumbVerticalAppearance
+        ? sliderThumbVertical()
+        : sliderThumbHorizontal();
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+
+    // Update the various states we respond to.
+    updateEnabledState(sliderThumbCell, o->parent());
+    updateFocusedState(sliderThumbCell, o->parent());
+
+    // Update the pressed state using the NSCell tracking methods, since that's how NSSliderCell keeps track of it.
+    bool oldPressed;
+    if (o->style()->appearance() == SliderThumbVerticalAppearance)
+        oldPressed = m_isSliderThumbVerticalPressed;
+    else
+        oldPressed = m_isSliderThumbHorizontalPressed;
+
+    bool pressed = static_cast<RenderSlider*>(o->parent())->inDragMode();
+
+    if (o->style()->appearance() == SliderThumbVerticalAppearance)
+        m_isSliderThumbVerticalPressed = pressed;
+    else
+        m_isSliderThumbHorizontalPressed = pressed;
+
+    if (pressed != oldPressed) {
+        if (pressed)
+            [sliderThumbCell startTrackingAt:NSPoint() inView:nil];
+        else
+            [sliderThumbCell stopTracking:NSPoint() at:NSPoint() inView:nil mouseIsUp:YES];
+    }
+
+    FloatRect bounds = r;
+    // Make the height of the vertical slider slightly larger so NSSliderCell will draw a vertical slider.
+    if (o->style()->appearance() == SliderThumbVerticalAppearance)
+        bounds.setHeight(bounds.height() + verticalSliderHeightPadding);
+
+    [sliderThumbCell drawWithFrame:NSRect(bounds) inView:o->view()->frameView()->getDocumentView()];
+    [sliderThumbCell setControlView:nil];
+
+    return false;
+}
+
+const int sliderThumbWidth = 15;
+const int sliderThumbHeight = 15;
+const int mediaSliderThumbWidth = 13;
+const int mediaSliderThumbHeight = 14;
+
+void RenderThemeMac::adjustSliderThumbSize(RenderObject* o) const
+{
+    if (o->style()->appearance() == SliderThumbHorizontalAppearance || o->style()->appearance() == SliderThumbVerticalAppearance) {
+        o->style()->setWidth(Length(sliderThumbWidth, Fixed));
+        o->style()->setHeight(Length(sliderThumbHeight, Fixed));
+    } else if (o->style()->appearance() == MediaSliderThumbAppearance) {
+        o->style()->setWidth(Length(mediaSliderThumbWidth, Fixed));
+        o->style()->setHeight(Length(mediaSliderThumbHeight, Fixed));
+    }
+}
+
+bool RenderThemeMac::paintSearchField(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    NSSearchFieldCell* search = this->search();
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+
+    setSearchCellState(o, r);
+
+    // Set the search button to nil before drawing.  Then reset it so we can draw it later.
+    [search setSearchButtonCell:nil];
+
+    [search drawWithFrame:NSRect(r) inView:o->view()->frameView()->getDocumentView()];
+#ifdef BUILDING_ON_TIGER
+    if ([search showsFirstResponder])
+        wkDrawTextFieldCellFocusRing(search, NSRect(r));
+#endif
+
+    [search setControlView:nil];
+    [search resetSearchButtonCell];
+
+    return false;
+}
+
+void RenderThemeMac::setSearchCellState(RenderObject* o, const IntRect& r)
+{
+    NSSearchFieldCell* search = this->search();
+
+    [search setControlSize:controlSizeForFont(o->style())];
+
+    // Update the various states we respond to.
+    updateEnabledState(search, o);
+    updateFocusedState(search, o);
+}
+
+const IntSize* RenderThemeMac::searchFieldSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(0, 22), IntSize(0, 19), IntSize(0, 17) };
+    return sizes;
+}
+
+void RenderThemeMac::setSearchFieldSize(RenderStyle* style) const
+{
+    // If the width and height are both specified, then we have nothing to do.
+    if (!style->width().isIntrinsicOrAuto() && !style->height().isAuto())
+        return;
+    
+    // Use the font size to determine the intrinsic width of the control.
+    setSizeFromFont(style, searchFieldSizes());
+}
+
+void RenderThemeMac::adjustSearchFieldStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    // Override border.
+    style->resetBorder();
+    const short borderWidth = 2;
+    style->setBorderLeftWidth(borderWidth);
+    style->setBorderLeftStyle(INSET);
+    style->setBorderRightWidth(borderWidth);
+    style->setBorderRightStyle(INSET);
+    style->setBorderBottomWidth(borderWidth);
+    style->setBorderBottomStyle(INSET);
+    style->setBorderTopWidth(borderWidth);
+    style->setBorderTopStyle(INSET);    
+    
+    // Override height.
+    style->setHeight(Length(Auto));
+    setSearchFieldSize(style);
+    
+    // Override padding size to match AppKit text positioning.
+    const int padding = 1;
+    style->setPaddingLeft(Length(padding, Fixed));
+    style->setPaddingRight(Length(padding, Fixed));
+    style->setPaddingTop(Length(padding, Fixed));
+    style->setPaddingBottom(Length(padding, Fixed));
+    
+    NSControlSize controlSize = controlSizeForFont(style);
+    setFontFromControlSize(selector, style, controlSize);
+
+    style->setBoxShadow(0);
+}
+
+bool RenderThemeMac::paintSearchFieldCancelButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* input = o->node()->shadowAncestorNode();
+    setSearchCellState(input->renderer(), r);
+
+    NSSearchFieldCell* search = this->search();
+
+    updatePressedState([search cancelButtonCell], o);
+
+    NSRect bounds = [search cancelButtonRectForBounds:NSRect(input->renderer()->absoluteBoundingBoxRect())];
+    [[search cancelButtonCell] drawWithFrame:bounds inView:o->view()->frameView()->getDocumentView()];
+    [[search cancelButtonCell] setControlView:nil];
+
+    return false;
+}
+
+const IntSize* RenderThemeMac::cancelButtonSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(16, 13), IntSize(13, 11), IntSize(13, 9) };
+    return sizes;
+}
+
+void RenderThemeMac::adjustSearchFieldCancelButtonStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    IntSize size = sizeForSystemFont(style, cancelButtonSizes());
+    style->setWidth(Length(size.width(), Fixed));
+    style->setHeight(Length(size.height(), Fixed));
+    style->setBoxShadow(0);
+}
+
+const IntSize* RenderThemeMac::resultsButtonSizes() const
+{
+    static const IntSize sizes[3] = { IntSize(19, 13), IntSize(17, 11), IntSize(17, 9) };
+    return sizes;
+}
+
+const int emptyResultsOffset = 9;
+void RenderThemeMac::adjustSearchFieldDecorationStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    IntSize size = sizeForSystemFont(style, resultsButtonSizes());
+    style->setWidth(Length(size.width() - emptyResultsOffset, Fixed));
+    style->setHeight(Length(size.height(), Fixed));
+    style->setBoxShadow(0);
+}
+
+bool RenderThemeMac::paintSearchFieldDecoration(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    return false;
+}
+
+void RenderThemeMac::adjustSearchFieldResultsDecorationStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    IntSize size = sizeForSystemFont(style, resultsButtonSizes());
+    style->setWidth(Length(size.width(), Fixed));
+    style->setHeight(Length(size.height(), Fixed));
+    style->setBoxShadow(0);
+}
+
+bool RenderThemeMac::paintSearchFieldResultsDecoration(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* input = o->node()->shadowAncestorNode();
+    setSearchCellState(input->renderer(), r);
+
+    NSSearchFieldCell* search = this->search();
+
+    if ([search searchMenuTemplate] != nil)
+        [search setSearchMenuTemplate:nil];
+
+    NSRect bounds = [search searchButtonRectForBounds:NSRect(input->renderer()->absoluteBoundingBoxRect())];
+    [[search searchButtonCell] drawWithFrame:bounds inView:o->view()->frameView()->getDocumentView()];
+    [[search searchButtonCell] setControlView:nil];
+    return false;
+}
+
+const int resultsArrowWidth = 5;
+void RenderThemeMac::adjustSearchFieldResultsButtonStyle(CSSStyleSelector* selector, RenderStyle* style, Element* e) const
+{
+    IntSize size = sizeForSystemFont(style, resultsButtonSizes());
+    style->setWidth(Length(size.width() + resultsArrowWidth, Fixed));
+    style->setHeight(Length(size.height(), Fixed));
+    style->setBoxShadow(0);
+}
+
+bool RenderThemeMac::paintSearchFieldResultsButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* input = o->node()->shadowAncestorNode();
+    setSearchCellState(input->renderer(), r);
+
+    NSSearchFieldCell* search = this->search();
+
+    if (![search searchMenuTemplate])
+        [search setSearchMenuTemplate:searchMenuTemplate()];
+
+    NSRect bounds = [search searchButtonRectForBounds:NSRect(input->renderer()->absoluteBoundingBoxRect())];
+    [[search searchButtonCell] drawWithFrame:bounds inView:o->view()->frameView()->getDocumentView()];
+    [[search searchButtonCell] setControlView:nil];
+    return false;
+}
+
+bool RenderThemeMac::paintMediaFullscreenButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    if (!node)
+        return false;
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    wkDrawMediaFullscreenButton(paintInfo.context->platformContext(), r, node->active());
+    return false;
+}
+
+bool RenderThemeMac::paintMediaMuteButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    Node* mediaNode = node ? node->shadowAncestorNode() : 0;
+    if (!mediaNode || (!mediaNode->hasTagName(videoTag) && !mediaNode->hasTagName(audioTag)))
+        return false;
+
+    HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(mediaNode);
+    if (!mediaElement)
+        return false;
+    
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    if (mediaElement->muted())
+        wkDrawMediaUnMuteButton(paintInfo.context->platformContext(), r, node->active());
+    else
+        wkDrawMediaMuteButton(paintInfo.context->platformContext(), r, node->active());        
+    return false;
+}
+
+bool RenderThemeMac::paintMediaPlayButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    Node* mediaNode = node ? node->shadowAncestorNode() : 0;
+    if (!mediaNode || (!mediaNode->hasTagName(videoTag) && !mediaNode->hasTagName(audioTag)))
+        return false;
+
+    HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(mediaNode);
+    if (!mediaElement)
+        return false;
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    if (mediaElement->canPlay())
+        wkDrawMediaPlayButton(paintInfo.context->platformContext(), r, node->active());
+    else
+        wkDrawMediaPauseButton(paintInfo.context->platformContext(), r, node->active());        
+    return false;
+}
+
+bool RenderThemeMac::paintMediaSeekBackButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    if (!node)
+        return false;
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    wkDrawMediaSeekBackButton(paintInfo.context->platformContext(), r, node->active());
+    return false;
+}
+
+bool RenderThemeMac::paintMediaSeekForwardButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    if (!node)
+        return false;
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    wkDrawMediaSeekForwardButton(paintInfo.context->platformContext(), r, node->active());
+    return false;
+}
+
+bool RenderThemeMac::paintMediaSliderTrack(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    Node* mediaNode = node ? node->shadowAncestorNode() : 0;
+    if (!mediaNode || (!mediaNode->hasTagName(videoTag) && !mediaNode->hasTagName(audioTag)))
+        return false;
+
+    HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(mediaNode);
+    if (!mediaElement)
+        return false;
+
+    float percentLoaded = 0;
+    if (MediaPlayer* player = mediaElement->player())
+        if (player->duration())
+            percentLoaded = player->maxTimeBuffered() / player->duration();
+
+    wkDrawMediaSliderTrack(paintInfo.context->platformContext(), r, percentLoaded);
+    return false;
+}
+
+bool RenderThemeMac::paintMediaSliderThumb(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
+{
+    Node* node = o->element();
+    if (!node)
+        return false;
+
+    LocalCurrentGraphicsContext localContext(paintInfo.context);
+    wkDrawMediaSliderThumb(paintInfo.context->platformContext(), r, node->active());
+    return false;
+}
+
+NSButtonCell* RenderThemeMac::checkbox() const
+{
+    if (!m_checkbox) {
+        m_checkbox.adoptNS([[NSButtonCell alloc] init]);
+        [m_checkbox.get() setButtonType:NSSwitchButton];
+        [m_checkbox.get() setTitle:nil];
+        [m_checkbox.get() setAllowsMixedState:YES];
+        [m_checkbox.get() setFocusRingType:NSFocusRingTypeExterior];
+    }
+    
+    return m_checkbox.get();
+}
+
+NSButtonCell* RenderThemeMac::radio() const
+{
+    if (!m_radio) {
+        m_radio.adoptNS([[NSButtonCell alloc] init]);
+        [m_radio.get() setButtonType:NSRadioButton];
+        [m_radio.get() setTitle:nil];
+        [m_radio.get() setFocusRingType:NSFocusRingTypeExterior];
+    }
+    
+    return m_radio.get();
+}
+
+NSButtonCell* RenderThemeMac::button() const
+{
+    if (!m_button) {
+        m_button.adoptNS([[NSButtonCell alloc] init]);
+        [m_button.get() setTitle:nil];
+        [m_button.get() setButtonType:NSMomentaryPushInButton];
+    }
+    
+    return m_button.get();
+}
+
+NSPopUpButtonCell* RenderThemeMac::popupButton() const
+{
+    if (!m_popupButton) {
+        m_popupButton.adoptNS([[NSPopUpButtonCell alloc] initTextCell:@"" pullsDown:NO]);
+        [m_popupButton.get() setUsesItemFromMenu:NO];
+        [m_popupButton.get() setFocusRingType:NSFocusRingTypeExterior];
+    }
+    
+    return m_popupButton.get();
+}
+
+NSSearchFieldCell* RenderThemeMac::search() const
+{
+    if (!m_search) {
+        m_search.adoptNS([[NSSearchFieldCell alloc] initTextCell:@""]);
+        [m_search.get() setBezelStyle:NSTextFieldRoundedBezel];
+        [m_search.get() setBezeled:YES];
+        [m_search.get() setEditable:YES];
+        [m_search.get() setFocusRingType:NSFocusRingTypeExterior];
+    }
+
+    return m_search.get();
+}
+
+NSMenu* RenderThemeMac::searchMenuTemplate() const
+{
+    if (!m_searchMenuTemplate)
+        m_searchMenuTemplate.adoptNS([[NSMenu alloc] initWithTitle:@""]);
+
+    return m_searchMenuTemplate.get();
+}
+
+NSSliderCell* RenderThemeMac::sliderThumbHorizontal() const
+{
+    if (!m_sliderThumbHorizontal) {
+        m_sliderThumbHorizontal.adoptNS([[NSSliderCell alloc] init]);
+        [m_sliderThumbHorizontal.get() setTitle:nil];
+        [m_sliderThumbHorizontal.get() setSliderType:NSLinearSlider];
+        [m_sliderThumbHorizontal.get() setControlSize:NSSmallControlSize];
+        [m_sliderThumbHorizontal.get() setFocusRingType:NSFocusRingTypeExterior];
+    }
+    
+    return m_sliderThumbHorizontal.get();
+}
+
+NSSliderCell* RenderThemeMac::sliderThumbVertical() const
+{
+    if (!m_sliderThumbVertical) {
+        m_sliderThumbVertical.adoptNS([[NSSliderCell alloc] init]);
+        [m_sliderThumbVertical.get() setTitle:nil];
+        [m_sliderThumbVertical.get() setSliderType:NSLinearSlider];
+        [m_sliderThumbVertical.get() setControlSize:NSSmallControlSize];
+        [m_sliderThumbVertical.get() setFocusRingType:NSFocusRingTypeExterior];
+    }
+    
+    return m_sliderThumbVertical.get();
+}
+
+} // namespace WebCore