michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsLookAndFeel.h"
michael@0: #include "nsCocoaFeatures.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsNativeThemeColors.h"
michael@0: #include "nsStyleConsts.h"
michael@0: #include "nsCocoaFeatures.h"
michael@0: #include "gfxFont.h"
michael@0: #include "gfxFontConstants.h"
michael@0: #include "mozilla/gfx/2D.h"
michael@0: 
michael@0: #import <Cocoa/Cocoa.h>
michael@0: 
michael@0: // This must be included last:
michael@0: #include "nsObjCExceptions.h"
michael@0: 
michael@0: enum {
michael@0:   mozNSScrollerStyleLegacy       = 0,
michael@0:   mozNSScrollerStyleOverlay      = 1
michael@0: };
michael@0: typedef NSInteger mozNSScrollerStyle;
michael@0: 
michael@0: @interface NSScroller(AvailableSinceLion)
michael@0: + (mozNSScrollerStyle)preferredScrollerStyle;
michael@0: @end
michael@0: 
michael@0: nsLookAndFeel::nsLookAndFeel() : nsXPLookAndFeel()
michael@0: {
michael@0: }
michael@0: 
michael@0: nsLookAndFeel::~nsLookAndFeel()
michael@0: {
michael@0: }
michael@0: 
michael@0: static nscolor GetColorFromNSColor(NSColor* aColor)
michael@0: {
michael@0:   NSColor* deviceColor = [aColor colorUsingColorSpaceName:NSDeviceRGBColorSpace];
michael@0:   return NS_RGB((unsigned int)([deviceColor redComponent] * 255.0),
michael@0:                 (unsigned int)([deviceColor greenComponent] * 255.0),
michael@0:                 (unsigned int)([deviceColor blueComponent] * 255.0));
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsLookAndFeel::NativeGetColor(ColorID aID, nscolor &aColor)
michael@0: {
michael@0:   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
michael@0: 
michael@0:   nsresult res = NS_OK;
michael@0:   
michael@0:   switch (aID) {
michael@0:     case eColorID_WindowBackground:
michael@0:       aColor = NS_RGB(0xff,0xff,0xff);
michael@0:       break;
michael@0:     case eColorID_WindowForeground:
michael@0:       aColor = NS_RGB(0x00,0x00,0x00);        
michael@0:       break;
michael@0:     case eColorID_WidgetBackground:
michael@0:       aColor = NS_RGB(0xdd,0xdd,0xdd);
michael@0:       break;
michael@0:     case eColorID_WidgetForeground:
michael@0:       aColor = NS_RGB(0x00,0x00,0x00);        
michael@0:       break;
michael@0:     case eColorID_WidgetSelectBackground:
michael@0:       aColor = NS_RGB(0x80,0x80,0x80);
michael@0:       break;
michael@0:     case eColorID_WidgetSelectForeground:
michael@0:       aColor = NS_RGB(0x00,0x00,0x80);
michael@0:       break;
michael@0:     case eColorID_Widget3DHighlight:
michael@0:       aColor = NS_RGB(0xa0,0xa0,0xa0);
michael@0:       break;
michael@0:     case eColorID_Widget3DShadow:
michael@0:       aColor = NS_RGB(0x40,0x40,0x40);
michael@0:       break;
michael@0:     case eColorID_TextBackground:
michael@0:       aColor = NS_RGB(0xff,0xff,0xff);
michael@0:       break;
michael@0:     case eColorID_TextForeground:
michael@0:       aColor = NS_RGB(0x00,0x00,0x00);
michael@0:       break;
michael@0:     case eColorID_TextSelectBackground:
michael@0:       aColor = GetColorFromNSColor([NSColor selectedTextBackgroundColor]);
michael@0:       break;
michael@0:     case eColorID_highlight: // CSS2 color
michael@0:       aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
michael@0:       break;
michael@0:     case eColorID__moz_menuhover:
michael@0:       aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
michael@0:       break;      
michael@0:     case eColorID_TextSelectForeground:
michael@0:       GetColor(eColorID_TextSelectBackground, aColor);
michael@0:       if (aColor == 0x000000)
michael@0:         aColor = NS_RGB(0xff,0xff,0xff);
michael@0:       else
michael@0:         aColor = NS_DONT_CHANGE_COLOR;
michael@0:       break;
michael@0:     case eColorID_highlighttext:  // CSS2 color
michael@0:     case eColorID__moz_menuhovertext:
michael@0:       aColor = GetColorFromNSColor([NSColor alternateSelectedControlTextColor]);
michael@0:       break;
michael@0:     case eColorID_IMESelectedRawTextBackground:
michael@0:     case eColorID_IMESelectedConvertedTextBackground:
michael@0:     case eColorID_IMERawInputBackground:
michael@0:     case eColorID_IMEConvertedTextBackground:
michael@0:       aColor = NS_TRANSPARENT;
michael@0:       break;
michael@0:     case eColorID_IMESelectedRawTextForeground:
michael@0:     case eColorID_IMESelectedConvertedTextForeground:
michael@0:     case eColorID_IMERawInputForeground:
michael@0:     case eColorID_IMEConvertedTextForeground:
michael@0:       aColor = NS_SAME_AS_FOREGROUND_COLOR;
michael@0:       break;
michael@0:     case eColorID_IMERawInputUnderline:
michael@0:     case eColorID_IMEConvertedTextUnderline:
michael@0:       aColor = NS_40PERCENT_FOREGROUND_COLOR;
michael@0:       break;
michael@0:     case eColorID_IMESelectedRawTextUnderline:
michael@0:     case eColorID_IMESelectedConvertedTextUnderline:
michael@0:       aColor = NS_SAME_AS_FOREGROUND_COLOR;
michael@0:       break;
michael@0:     case eColorID_SpellCheckerUnderline:
michael@0:       aColor = NS_RGB(0xff, 0, 0);
michael@0:       break;
michael@0: 
michael@0:       //
michael@0:       // css2 system colors http://www.w3.org/TR/REC-CSS2/ui.html#system-colors
michael@0:       //
michael@0:       // It's really hard to effectively map these to the Appearance Manager properly,
michael@0:       // since they are modeled word for word after the win32 system colors and don't have any 
michael@0:       // real counterparts in the Mac world. I'm sure we'll be tweaking these for 
michael@0:       // years to come. 
michael@0:       //
michael@0:       // Thanks to mpt26@student.canterbury.ac.nz for the hardcoded values that form the defaults
michael@0:       //  if querying the Appearance Manager fails ;)
michael@0:       //
michael@0:       
michael@0:     case eColorID_buttontext:
michael@0:     case eColorID__moz_buttonhovertext:
michael@0:       aColor = GetColorFromNSColor([NSColor controlTextColor]);
michael@0:       break;
michael@0:     case eColorID_captiontext:
michael@0:     case eColorID_menutext:
michael@0:     case eColorID_infotext:
michael@0:     case eColorID__moz_menubartext:
michael@0:       aColor = GetColorFromNSColor([NSColor textColor]);
michael@0:       break;
michael@0:     case eColorID_windowtext:
michael@0:       aColor = GetColorFromNSColor([NSColor windowFrameTextColor]);
michael@0:       break;
michael@0:     case eColorID_activecaption:
michael@0:       aColor = GetColorFromNSColor([NSColor gridColor]);
michael@0:       break;
michael@0:     case eColorID_activeborder:
michael@0:       aColor = NS_RGB(0x00,0x00,0x00);
michael@0:       break;
michael@0:      case eColorID_appworkspace:
michael@0:       aColor = NS_RGB(0xFF,0xFF,0xFF);
michael@0:       break;
michael@0:     case eColorID_background:
michael@0:       aColor = NS_RGB(0x63,0x63,0xCE);
michael@0:       break;
michael@0:     case eColorID_buttonface:
michael@0:     case eColorID__moz_buttonhoverface:
michael@0:       aColor = NS_RGB(0xF0,0xF0,0xF0);
michael@0:       break;
michael@0:     case eColorID_buttonhighlight:
michael@0:       aColor = NS_RGB(0xFF,0xFF,0xFF);
michael@0:       break;
michael@0:     case eColorID_buttonshadow:
michael@0:       aColor = NS_RGB(0xDC,0xDC,0xDC);
michael@0:       break;
michael@0:     case eColorID_graytext:
michael@0:       aColor = GetColorFromNSColor([NSColor disabledControlTextColor]);
michael@0:       break;
michael@0:     case eColorID_inactiveborder:
michael@0:       aColor = GetColorFromNSColor([NSColor controlBackgroundColor]);
michael@0:       break;
michael@0:     case eColorID_inactivecaption:
michael@0:       aColor = GetColorFromNSColor([NSColor controlBackgroundColor]);
michael@0:       break;
michael@0:     case eColorID_inactivecaptiontext:
michael@0:       aColor = NS_RGB(0x45,0x45,0x45);
michael@0:       break;
michael@0:     case eColorID_scrollbar:
michael@0:       aColor = GetColorFromNSColor([NSColor scrollBarColor]);
michael@0:       break;
michael@0:     case eColorID_threeddarkshadow:
michael@0:       aColor = NS_RGB(0xDC,0xDC,0xDC);
michael@0:       break;
michael@0:     case eColorID_threedshadow:
michael@0:       aColor = NS_RGB(0xE0,0xE0,0xE0);
michael@0:       break;
michael@0:     case eColorID_threedface:
michael@0:       aColor = NS_RGB(0xF0,0xF0,0xF0);
michael@0:       break;
michael@0:     case eColorID_threedhighlight:
michael@0:       aColor = GetColorFromNSColor([NSColor highlightColor]);
michael@0:       break;
michael@0:     case eColorID_threedlightshadow:
michael@0:       aColor = NS_RGB(0xDA,0xDA,0xDA);
michael@0:       break;
michael@0:     case eColorID_menu:
michael@0:       aColor = GetColorFromNSColor([NSColor alternateSelectedControlTextColor]);
michael@0:       break;
michael@0:     case eColorID_infobackground:
michael@0:       aColor = NS_RGB(0xFF,0xFF,0xC7);
michael@0:       break;
michael@0:     case eColorID_windowframe:
michael@0:       aColor = GetColorFromNSColor([NSColor gridColor]);
michael@0:       break;
michael@0:     case eColorID_window:
michael@0:     case eColorID__moz_field:
michael@0:     case eColorID__moz_combobox:
michael@0:       aColor = NS_RGB(0xff,0xff,0xff);
michael@0:       break;
michael@0:     case eColorID__moz_fieldtext:
michael@0:     case eColorID__moz_comboboxtext:
michael@0:       aColor = GetColorFromNSColor([NSColor controlTextColor]);
michael@0:       break;
michael@0:     case eColorID__moz_dialog:
michael@0:       aColor = GetColorFromNSColor([NSColor controlHighlightColor]);
michael@0:       break;
michael@0:     case eColorID__moz_dialogtext:
michael@0:     case eColorID__moz_cellhighlighttext:
michael@0:     case eColorID__moz_html_cellhighlighttext:
michael@0:       aColor = GetColorFromNSColor([NSColor controlTextColor]);
michael@0:       break;
michael@0:     case eColorID__moz_dragtargetzone:
michael@0:       aColor = GetColorFromNSColor([NSColor selectedControlColor]);
michael@0:       break;
michael@0:     case eColorID__moz_mac_chrome_active:
michael@0:     case eColorID__moz_mac_chrome_inactive: {
michael@0:       int grey = NativeGreyColorAsInt(toolbarFillGrey, (aID == eColorID__moz_mac_chrome_active));
michael@0:       aColor = NS_RGB(grey, grey, grey);
michael@0:     }
michael@0:       break;
michael@0:     case eColorID__moz_mac_focusring:
michael@0:       aColor = GetColorFromNSColor([NSColor keyboardFocusIndicatorColor]);
michael@0:       break;
michael@0:     case eColorID__moz_mac_menushadow:
michael@0:       aColor = NS_RGB(0xA3,0xA3,0xA3);
michael@0:       break;          
michael@0:     case eColorID__moz_mac_menutextdisable:
michael@0:       aColor = NS_RGB(0x88,0x88,0x88);
michael@0:       break;      
michael@0:     case eColorID__moz_mac_menutextselect:
michael@0:       aColor = GetColorFromNSColor([NSColor selectedMenuItemTextColor]);
michael@0:       break;      
michael@0:     case eColorID__moz_mac_disabledtoolbartext:
michael@0:       aColor = GetColorFromNSColor([NSColor disabledControlTextColor]);
michael@0:       break;
michael@0:     case eColorID__moz_mac_menuselect:
michael@0:       aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
michael@0:       break;
michael@0:     case eColorID__moz_buttondefault:
michael@0:       aColor = NS_RGB(0xDC,0xDC,0xDC);
michael@0:       break;
michael@0:     case eColorID__moz_cellhighlight:
michael@0:     case eColorID__moz_html_cellhighlight:
michael@0:     case eColorID__moz_mac_secondaryhighlight:
michael@0:       // For inactive list selection
michael@0:       aColor = GetColorFromNSColor([NSColor secondarySelectedControlColor]);
michael@0:       break;
michael@0:     case eColorID__moz_eventreerow:
michael@0:       // Background color of even list rows.
michael@0:       aColor = GetColorFromNSColor([[NSColor controlAlternatingRowBackgroundColors] objectAtIndex:0]);
michael@0:       break;
michael@0:     case eColorID__moz_oddtreerow:
michael@0:       // Background color of odd list rows.
michael@0:       aColor = GetColorFromNSColor([[NSColor controlAlternatingRowBackgroundColors] objectAtIndex:1]);
michael@0:       break;
michael@0:     case eColorID__moz_nativehyperlinktext:
michael@0:       // There appears to be no available system defined color. HARDCODING to the appropriate color.
michael@0:       aColor = NS_RGB(0x14,0x4F,0xAE);
michael@0:       break;
michael@0:     default:
michael@0:       NS_WARNING("Someone asked nsILookAndFeel for a color I don't know about");
michael@0:       aColor = NS_RGB(0xff,0xff,0xff);
michael@0:       res = NS_ERROR_FAILURE;
michael@0:       break;
michael@0:     }
michael@0:   
michael@0:   return res;
michael@0: 
michael@0:   NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsLookAndFeel::GetIntImpl(IntID aID, int32_t &aResult)
michael@0: {
michael@0:   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
michael@0: 
michael@0:   nsresult res = nsXPLookAndFeel::GetIntImpl(aID, aResult);
michael@0:   if (NS_SUCCEEDED(res))
michael@0:     return res;
michael@0:   res = NS_OK;
michael@0:   
michael@0:   switch (aID) {
michael@0:     case eIntID_CaretBlinkTime:
michael@0:       aResult = 567;
michael@0:       break;
michael@0:     case eIntID_CaretWidth:
michael@0:       aResult = 1;
michael@0:       break;
michael@0:     case eIntID_ShowCaretDuringSelection:
michael@0:       aResult = 0;
michael@0:       break;
michael@0:     case eIntID_SelectTextfieldsOnKeyFocus:
michael@0:       // Select textfield content when focused by kbd
michael@0:       // used by EventStateManager::sTextfieldSelectModel
michael@0:       aResult = 1;
michael@0:       break;
michael@0:     case eIntID_SubmenuDelay:
michael@0:       aResult = 200;
michael@0:       break;
michael@0:     case eIntID_TooltipDelay:
michael@0:       aResult = 500;
michael@0:       break;
michael@0:     case eIntID_MenusCanOverlapOSBar:
michael@0:       // xul popups are not allowed to overlap the menubar.
michael@0:       aResult = 0;
michael@0:       break;
michael@0:     case eIntID_SkipNavigatingDisabledMenuItem:
michael@0:       aResult = 1;
michael@0:       break;
michael@0:     case eIntID_DragThresholdX:
michael@0:     case eIntID_DragThresholdY:
michael@0:       aResult = 4;
michael@0:       break;
michael@0:     case eIntID_ScrollArrowStyle:
michael@0:       if (nsCocoaFeatures::OnLionOrLater()) {
michael@0:         // OS X Lion's scrollbars have no arrows
michael@0:         aResult = eScrollArrow_None;
michael@0:       } else {
michael@0:         NSString *buttonPlacement = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleScrollBarVariant"];
michael@0:         if ([buttonPlacement isEqualToString:@"Single"]) {
michael@0:           aResult = eScrollArrowStyle_Single;
michael@0:         } else if ([buttonPlacement isEqualToString:@"DoubleMin"]) {
michael@0:           aResult = eScrollArrowStyle_BothAtTop;
michael@0:         } else if ([buttonPlacement isEqualToString:@"DoubleBoth"]) {
michael@0:           aResult = eScrollArrowStyle_BothAtEachEnd;
michael@0:         } else {
michael@0:           aResult = eScrollArrowStyle_BothAtBottom; // The default is BothAtBottom.
michael@0:         }
michael@0:       }
michael@0:       break;
michael@0:     case eIntID_ScrollSliderStyle:
michael@0:       aResult = eScrollThumbStyle_Proportional;
michael@0:       break;
michael@0:     case eIntID_UseOverlayScrollbars:
michael@0:       aResult = SystemWantsOverlayScrollbars() ? 1 : 0;
michael@0:       break;
michael@0:     case eIntID_AllowOverlayScrollbarsOverlap:
michael@0:       aResult = AllowOverlayScrollbarsOverlap() ? 1 : 0;
michael@0:       break;
michael@0:     case eIntID_ScrollbarDisplayOnMouseMove:
michael@0:       aResult = 0;
michael@0:       break;
michael@0:     case eIntID_ScrollbarFadeBeginDelay:
michael@0:       aResult = 450;
michael@0:       break;
michael@0:     case eIntID_ScrollbarFadeDuration:
michael@0:       aResult = 200;
michael@0:       break;
michael@0:     case eIntID_TreeOpenDelay:
michael@0:       aResult = 1000;
michael@0:       break;
michael@0:     case eIntID_TreeCloseDelay:
michael@0:       aResult = 1000;
michael@0:       break;
michael@0:     case eIntID_TreeLazyScrollDelay:
michael@0:       aResult = 150;
michael@0:       break;
michael@0:     case eIntID_TreeScrollDelay:
michael@0:       aResult = 100;
michael@0:       break;
michael@0:     case eIntID_TreeScrollLinesMax:
michael@0:       aResult = 3;
michael@0:       break;
michael@0:     case eIntID_DWMCompositor:
michael@0:     case eIntID_WindowsClassic:
michael@0:     case eIntID_WindowsDefaultTheme:
michael@0:     case eIntID_TouchEnabled:
michael@0:     case eIntID_WindowsThemeIdentifier:
michael@0:     case eIntID_OperatingSystemVersionIdentifier:
michael@0:       aResult = 0;
michael@0:       res = NS_ERROR_NOT_IMPLEMENTED;
michael@0:       break;
michael@0:     case eIntID_MacGraphiteTheme:
michael@0:       aResult = [NSColor currentControlTint] == NSGraphiteControlTint;
michael@0:       break;
michael@0:     case eIntID_MacLionTheme:
michael@0:       aResult = nsCocoaFeatures::OnLionOrLater();
michael@0:       break;
michael@0:     case eIntID_AlertNotificationOrigin:
michael@0:       aResult = NS_ALERT_TOP;
michael@0:       break;
michael@0:     case eIntID_TabFocusModel:
michael@0:     {
michael@0:       // we should probably cache this
michael@0:       CFPropertyListRef fullKeyboardAccessProperty;
michael@0:       fullKeyboardAccessProperty = ::CFPreferencesCopyValue(CFSTR("AppleKeyboardUIMode"),
michael@0:                                                             kCFPreferencesAnyApplication,
michael@0:                                                             kCFPreferencesCurrentUser,
michael@0:                                                             kCFPreferencesAnyHost);
michael@0:       aResult = 1;    // default to just textboxes
michael@0:       if (fullKeyboardAccessProperty) {
michael@0:         int32_t fullKeyboardAccessPrefVal;
michael@0:         if (::CFNumberGetValue((CFNumberRef) fullKeyboardAccessProperty, kCFNumberIntType, &fullKeyboardAccessPrefVal)) {
michael@0:           // the second bit means  "Full keyboard access" is on
michael@0:           if (fullKeyboardAccessPrefVal & (1 << 1))
michael@0:             aResult = 7; // everything that can be focused
michael@0:         }
michael@0:         ::CFRelease(fullKeyboardAccessProperty);
michael@0:       }
michael@0:     }
michael@0:       break;
michael@0:     case eIntID_ScrollToClick:
michael@0:     {
michael@0:       aResult = [[NSUserDefaults standardUserDefaults] boolForKey:@"AppleScrollerPagingBehavior"];
michael@0:     }
michael@0:       break;
michael@0:     case eIntID_ChosenMenuItemsShouldBlink:
michael@0:       aResult = 1;
michael@0:       break;
michael@0:     case eIntID_IMERawInputUnderlineStyle:
michael@0:     case eIntID_IMEConvertedTextUnderlineStyle:
michael@0:     case eIntID_IMESelectedRawTextUnderlineStyle:
michael@0:     case eIntID_IMESelectedConvertedTextUnderline:
michael@0:       aResult = NS_STYLE_TEXT_DECORATION_STYLE_SOLID;
michael@0:       break;
michael@0:     case eIntID_SpellCheckerUnderlineStyle:
michael@0:       aResult = NS_STYLE_TEXT_DECORATION_STYLE_DOTTED;
michael@0:       break;
michael@0:     case eIntID_ScrollbarButtonAutoRepeatBehavior:
michael@0:       aResult = 0;
michael@0:       break;
michael@0:     case eIntID_SwipeAnimationEnabled:
michael@0:       aResult = 0;
michael@0:       if ([NSEvent respondsToSelector:@selector(
michael@0:             isSwipeTrackingFromScrollEventsEnabled)]) {
michael@0:         aResult = [NSEvent isSwipeTrackingFromScrollEventsEnabled] ? 1 : 0;
michael@0:       }
michael@0:       break;
michael@0:     case eIntID_ColorPickerAvailable:
michael@0:       aResult = 1;
michael@0:       break;
michael@0:     default:
michael@0:       aResult = 0;
michael@0:       res = NS_ERROR_FAILURE;
michael@0:   }
michael@0:   return res;
michael@0: 
michael@0:   NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsLookAndFeel::GetFloatImpl(FloatID aID, float &aResult)
michael@0: {
michael@0:   nsresult res = nsXPLookAndFeel::GetFloatImpl(aID, aResult);
michael@0:   if (NS_SUCCEEDED(res))
michael@0:     return res;
michael@0:   res = NS_OK;
michael@0:   
michael@0:   switch (aID) {
michael@0:     case eFloatID_IMEUnderlineRelativeSize:
michael@0:       aResult = 2.0f;
michael@0:       break;
michael@0:     case eFloatID_SpellCheckerUnderlineRelativeSize:
michael@0:       aResult = 2.0f;
michael@0:       break;
michael@0:     default:
michael@0:       aResult = -1.0;
michael@0:       res = NS_ERROR_FAILURE;
michael@0:   }
michael@0: 
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: bool nsLookAndFeel::UseOverlayScrollbars()
michael@0: {
michael@0:   return GetInt(eIntID_UseOverlayScrollbars) != 0;
michael@0: }
michael@0: 
michael@0: bool nsLookAndFeel::SystemWantsOverlayScrollbars()
michael@0: {
michael@0:   return ([NSScroller respondsToSelector:@selector(preferredScrollerStyle)] &&
michael@0:           [NSScroller preferredScrollerStyle] == mozNSScrollerStyleOverlay);
michael@0: }
michael@0: 
michael@0: bool nsLookAndFeel::AllowOverlayScrollbarsOverlap()
michael@0: {
michael@0:   return (UseOverlayScrollbars() && nsCocoaFeatures::OnMountainLionOrLater());
michael@0: }
michael@0: 
michael@0: // copied from gfxQuartzFontCache.mm, maybe should go in a Cocoa utils
michael@0: // file somewhere
michael@0: static void GetStringForNSString(const NSString *aSrc, nsAString& aDest)
michael@0: {
michael@0:     aDest.SetLength([aSrc length]);
michael@0:     [aSrc getCharacters:reinterpret_cast<unichar*>(aDest.BeginWriting())];
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsLookAndFeel::GetFontImpl(FontID aID, nsString &aFontName,
michael@0:                            gfxFontStyle &aFontStyle,
michael@0:                            float aDevPixPerCSSPixel)
michael@0: {
michael@0:     NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
michael@0: 
michael@0:     // hack for now
michael@0:     if (aID == eFont_Window || aID == eFont_Document) {
michael@0:         aFontStyle.style      = NS_FONT_STYLE_NORMAL;
michael@0:         aFontStyle.weight     = NS_FONT_WEIGHT_NORMAL;
michael@0:         aFontStyle.stretch    = NS_FONT_STRETCH_NORMAL;
michael@0:         aFontStyle.size       = 14 * aDevPixPerCSSPixel;
michael@0:         aFontStyle.systemFont = true;
michael@0: 
michael@0:         aFontName.AssignLiteral("sans-serif");
michael@0:         return true;
michael@0:     }
michael@0: 
michael@0: /* possibilities, see NSFont Class Reference:
michael@0:     [NSFont boldSystemFontOfSize:     0.0]
michael@0:     [NSFont controlContentFontOfSize: 0.0]
michael@0:     [NSFont labelFontOfSize:          0.0]
michael@0:     [NSFont menuBarFontOfSize:        0.0]
michael@0:     [NSFont menuFontOfSize:           0.0]
michael@0:     [NSFont messageFontOfSize:        0.0]
michael@0:     [NSFont paletteFontOfSize:        0.0]
michael@0:     [NSFont systemFontOfSize:         0.0]
michael@0:     [NSFont titleBarFontOfSize:       0.0]
michael@0:     [NSFont toolTipsFontOfSize:       0.0]
michael@0:     [NSFont userFixedPitchFontOfSize: 0.0]
michael@0:     [NSFont userFontOfSize:           0.0]
michael@0:     [NSFont systemFontOfSize:         [NSFont smallSystemFontSize]]
michael@0:     [NSFont boldSystemFontOfSize:     [NSFont smallSystemFontSize]]
michael@0: */
michael@0: 
michael@0:     NSFont *font = nullptr;
michael@0:     switch (aID) {
michael@0:         // css2
michael@0:         case eFont_Caption:
michael@0:             font = [NSFont systemFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Icon: // used in urlbar; tried labelFont, but too small
michael@0:             font = [NSFont controlContentFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Menu:
michael@0:             font = [NSFont systemFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_MessageBox:
michael@0:             font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         case eFont_SmallCaption:
michael@0:             font = [NSFont boldSystemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         case eFont_StatusBar:
michael@0:             font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         // css3
michael@0:         //case eFont_Window:     = 'sans-serif'
michael@0:         //case eFont_Document:   = 'sans-serif'
michael@0:         case eFont_Workspace:
michael@0:             font = [NSFont controlContentFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Desktop:
michael@0:             font = [NSFont controlContentFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Info:
michael@0:             font = [NSFont controlContentFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Dialog:
michael@0:             font = [NSFont systemFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Button:
michael@0:             font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         case eFont_PullDownMenu:
michael@0:             font = [NSFont menuBarFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_List:
michael@0:             font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         case eFont_Field:
michael@0:             font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         // moz
michael@0:         case eFont_Tooltips:
michael@0:             font = [NSFont toolTipsFontOfSize:0.0];
michael@0:             break;
michael@0:         case eFont_Widget:
michael@0:             font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
michael@0:             break;
michael@0:         default:
michael@0:             break;
michael@0:     }
michael@0: 
michael@0:     if (!font) {
michael@0:         NS_WARNING("failed to find a system font!");
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0:     NSFontSymbolicTraits traits = [[font fontDescriptor] symbolicTraits];
michael@0:     aFontStyle.style =
michael@0:         (traits & NSFontItalicTrait) ?  NS_FONT_STYLE_ITALIC : NS_FONT_STYLE_NORMAL;
michael@0:     aFontStyle.weight =
michael@0:         (traits & NSFontBoldTrait) ? NS_FONT_WEIGHT_BOLD : NS_FONT_WEIGHT_NORMAL;
michael@0:     aFontStyle.stretch =
michael@0:         (traits & NSFontExpandedTrait) ?
michael@0:             NS_FONT_STRETCH_EXPANDED : (traits & NSFontCondensedTrait) ?
michael@0:                 NS_FONT_STRETCH_CONDENSED : NS_FONT_STRETCH_NORMAL;
michael@0:     // convert size from css pixels to device pixels
michael@0:     aFontStyle.size = [font pointSize] * aDevPixPerCSSPixel;
michael@0:     aFontStyle.systemFont = true;
michael@0: 
michael@0:     GetStringForNSString([font familyName], aFontName);
michael@0:     return true;
michael@0: 
michael@0:     NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
michael@0: }