gecko/widget/cocoa/nsLookAndFeel.mm
John Daggett f1a6d52792 Bug 1201318 - revise OSX system font handling. r=mstange
Rework system font lookup under OSX so that the style system passes around the same "meta" name used by Webkit, -apple-system. This makes it so that the hidden system fonts used aren't exposed to authors. It also allows us to handle the two optical sizes of font families used under OSX 10.11, which uses San Francisco as the new UI font, with one family for text sizes and another for larger, display sizes. The patch here:

  - moves system font lookup into gfxMacPlatformFontList
  - assigns the font family name to "-apple-system"
  - derives FindFamily to take a gfxFontStyle parameter to allow size-based lookups
  - maintains a list of hidden system font families (not exposed to authors)
  - maintains a mapping from -apple-system to the underlying hidden font families
2015-10-08 15:04:08 +09:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsLookAndFeel.h"
#include "nsCocoaFeatures.h"
#include "nsIServiceManager.h"
#include "nsNativeThemeColors.h"
#include "nsStyleConsts.h"
#include "nsCocoaFeatures.h"
#include "gfxFont.h"
#include "gfxFontConstants.h"
#include "gfxPlatformMac.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/widget/WidgetMessageUtils.h"
#import <Cocoa/Cocoa.h>
// This must be included last:
#include "nsObjCExceptions.h"
enum {
mozNSScrollerStyleLegacy = 0,
mozNSScrollerStyleOverlay = 1
};
typedef NSInteger mozNSScrollerStyle;
@interface NSScroller(AvailableSinceLion)
+ (mozNSScrollerStyle)preferredScrollerStyle;
@end
nsLookAndFeel::nsLookAndFeel()
: nsXPLookAndFeel()
, mUseOverlayScrollbars(-1)
, mUseOverlayScrollbarsCached(false)
, mAllowOverlayScrollbarsOverlap(-1)
, mAllowOverlayScrollbarsOverlapCached(false)
{
}
nsLookAndFeel::~nsLookAndFeel()
{
}
static nscolor GetColorFromNSColor(NSColor* aColor)
{
NSColor* deviceColor = [aColor colorUsingColorSpaceName:NSDeviceRGBColorSpace];
return NS_RGB((unsigned int)([deviceColor redComponent] * 255.0),
(unsigned int)([deviceColor greenComponent] * 255.0),
(unsigned int)([deviceColor blueComponent] * 255.0));
}
nsresult
nsLookAndFeel::NativeGetColor(ColorID aID, nscolor &aColor)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsresult res = NS_OK;
switch (aID) {
case eColorID_WindowBackground:
aColor = NS_RGB(0xff,0xff,0xff);
break;
case eColorID_WindowForeground:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_WidgetBackground:
aColor = NS_RGB(0xdd,0xdd,0xdd);
break;
case eColorID_WidgetForeground:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_WidgetSelectBackground:
aColor = NS_RGB(0x80,0x80,0x80);
break;
case eColorID_WidgetSelectForeground:
aColor = NS_RGB(0x00,0x00,0x80);
break;
case eColorID_Widget3DHighlight:
aColor = NS_RGB(0xa0,0xa0,0xa0);
break;
case eColorID_Widget3DShadow:
aColor = NS_RGB(0x40,0x40,0x40);
break;
case eColorID_TextBackground:
aColor = NS_RGB(0xff,0xff,0xff);
break;
case eColorID_TextForeground:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_TextSelectBackground:
aColor = GetColorFromNSColor([NSColor selectedTextBackgroundColor]);
break;
case eColorID_highlight: // CSS2 color
aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
break;
case eColorID__moz_menuhover:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
break;
case eColorID_TextSelectForeground:
GetColor(eColorID_TextSelectBackground, aColor);
if (aColor == 0x000000)
aColor = NS_RGB(0xff,0xff,0xff);
else
aColor = NS_DONT_CHANGE_COLOR;
break;
case eColorID_highlighttext: // CSS2 color
case eColorID__moz_menuhovertext:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlTextColor]);
break;
case eColorID_IMESelectedRawTextBackground:
case eColorID_IMESelectedConvertedTextBackground:
case eColorID_IMERawInputBackground:
case eColorID_IMEConvertedTextBackground:
aColor = NS_TRANSPARENT;
break;
case eColorID_IMESelectedRawTextForeground:
case eColorID_IMESelectedConvertedTextForeground:
case eColorID_IMERawInputForeground:
case eColorID_IMEConvertedTextForeground:
aColor = NS_SAME_AS_FOREGROUND_COLOR;
break;
case eColorID_IMERawInputUnderline:
case eColorID_IMEConvertedTextUnderline:
aColor = NS_40PERCENT_FOREGROUND_COLOR;
break;
case eColorID_IMESelectedRawTextUnderline:
case eColorID_IMESelectedConvertedTextUnderline:
aColor = NS_SAME_AS_FOREGROUND_COLOR;
break;
case eColorID_SpellCheckerUnderline:
aColor = NS_RGB(0xff, 0, 0);
break;
//
// css2 system colors http://www.w3.org/TR/REC-CSS2/ui.html#system-colors
//
// It's really hard to effectively map these to the Appearance Manager properly,
// since they are modeled word for word after the win32 system colors and don't have any
// real counterparts in the Mac world. I'm sure we'll be tweaking these for
// years to come.
//
// Thanks to mpt26@student.canterbury.ac.nz for the hardcoded values that form the defaults
// if querying the Appearance Manager fails ;)
//
case eColorID__moz_mac_buttonactivetext:
case eColorID__moz_mac_defaultbuttontext:
if (nsCocoaFeatures::OnYosemiteOrLater()) {
aColor = NS_RGB(0xFF,0xFF,0xFF);
break;
}
// Otherwise fall through and return the regular button text:
case eColorID_buttontext:
case eColorID__moz_buttonhovertext:
aColor = GetColorFromNSColor([NSColor controlTextColor]);
break;
case eColorID_captiontext:
case eColorID_menutext:
case eColorID_infotext:
case eColorID__moz_menubartext:
aColor = GetColorFromNSColor([NSColor textColor]);
break;
case eColorID_windowtext:
aColor = GetColorFromNSColor([NSColor windowFrameTextColor]);
break;
case eColorID_activecaption:
aColor = GetColorFromNSColor([NSColor gridColor]);
break;
case eColorID_activeborder:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_appworkspace:
aColor = NS_RGB(0xFF,0xFF,0xFF);
break;
case eColorID_background:
aColor = NS_RGB(0x63,0x63,0xCE);
break;
case eColorID_buttonface:
case eColorID__moz_buttonhoverface:
aColor = NS_RGB(0xF0,0xF0,0xF0);
break;
case eColorID_buttonhighlight:
aColor = NS_RGB(0xFF,0xFF,0xFF);
break;
case eColorID_buttonshadow:
aColor = NS_RGB(0xDC,0xDC,0xDC);
break;
case eColorID_graytext:
aColor = GetColorFromNSColor([NSColor disabledControlTextColor]);
break;
case eColorID_inactiveborder:
aColor = GetColorFromNSColor([NSColor controlBackgroundColor]);
break;
case eColorID_inactivecaption:
aColor = GetColorFromNSColor([NSColor controlBackgroundColor]);
break;
case eColorID_inactivecaptiontext:
aColor = NS_RGB(0x45,0x45,0x45);
break;
case eColorID_scrollbar:
aColor = GetColorFromNSColor([NSColor scrollBarColor]);
break;
case eColorID_threeddarkshadow:
aColor = NS_RGB(0xDC,0xDC,0xDC);
break;
case eColorID_threedshadow:
aColor = NS_RGB(0xE0,0xE0,0xE0);
break;
case eColorID_threedface:
aColor = NS_RGB(0xF0,0xF0,0xF0);
break;
case eColorID_threedhighlight:
aColor = GetColorFromNSColor([NSColor highlightColor]);
break;
case eColorID_threedlightshadow:
aColor = NS_RGB(0xDA,0xDA,0xDA);
break;
case eColorID_menu:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlTextColor]);
break;
case eColorID_infobackground:
aColor = NS_RGB(0xFF,0xFF,0xC7);
break;
case eColorID_windowframe:
aColor = GetColorFromNSColor([NSColor gridColor]);
break;
case eColorID_window:
case eColorID__moz_field:
case eColorID__moz_combobox:
aColor = NS_RGB(0xff,0xff,0xff);
break;
case eColorID__moz_fieldtext:
case eColorID__moz_comboboxtext:
aColor = GetColorFromNSColor([NSColor controlTextColor]);
break;
case eColorID__moz_dialog:
aColor = GetColorFromNSColor([NSColor controlHighlightColor]);
break;
case eColorID__moz_dialogtext:
case eColorID__moz_cellhighlighttext:
case eColorID__moz_html_cellhighlighttext:
aColor = GetColorFromNSColor([NSColor controlTextColor]);
break;
case eColorID__moz_dragtargetzone:
aColor = GetColorFromNSColor([NSColor selectedControlColor]);
break;
case eColorID__moz_mac_chrome_active:
case eColorID__moz_mac_chrome_inactive: {
int grey = NativeGreyColorAsInt(toolbarFillGrey, (aID == eColorID__moz_mac_chrome_active));
aColor = NS_RGB(grey, grey, grey);
}
break;
case eColorID__moz_mac_focusring:
aColor = GetColorFromNSColor([NSColor keyboardFocusIndicatorColor]);
break;
case eColorID__moz_mac_menushadow:
aColor = NS_RGB(0xA3,0xA3,0xA3);
break;
case eColorID__moz_mac_menutextdisable:
aColor = NS_RGB(0x98,0x98,0x98);
break;
case eColorID__moz_mac_menutextselect:
aColor = GetColorFromNSColor([NSColor selectedMenuItemTextColor]);
break;
case eColorID__moz_mac_disabledtoolbartext:
aColor = GetColorFromNSColor([NSColor disabledControlTextColor]);
break;
case eColorID__moz_mac_menuselect:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
break;
case eColorID__moz_buttondefault:
aColor = NS_RGB(0xDC,0xDC,0xDC);
break;
case eColorID__moz_cellhighlight:
case eColorID__moz_html_cellhighlight:
case eColorID__moz_mac_secondaryhighlight:
// For inactive list selection
aColor = GetColorFromNSColor([NSColor secondarySelectedControlColor]);
break;
case eColorID__moz_eventreerow:
// Background color of even list rows.
aColor = GetColorFromNSColor([[NSColor controlAlternatingRowBackgroundColors] objectAtIndex:0]);
break;
case eColorID__moz_oddtreerow:
// Background color of odd list rows.
aColor = GetColorFromNSColor([[NSColor controlAlternatingRowBackgroundColors] objectAtIndex:1]);
break;
case eColorID__moz_nativehyperlinktext:
// There appears to be no available system defined color. HARDCODING to the appropriate color.
aColor = NS_RGB(0x14,0x4F,0xAE);
break;
default:
NS_WARNING("Someone asked nsILookAndFeel for a color I don't know about");
aColor = NS_RGB(0xff,0xff,0xff);
res = NS_ERROR_FAILURE;
break;
}
return res;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult
nsLookAndFeel::GetIntImpl(IntID aID, int32_t &aResult)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsresult res = nsXPLookAndFeel::GetIntImpl(aID, aResult);
if (NS_SUCCEEDED(res))
return res;
res = NS_OK;
switch (aID) {
case eIntID_CaretBlinkTime:
aResult = 567;
break;
case eIntID_CaretWidth:
aResult = 1;
break;
case eIntID_ShowCaretDuringSelection:
aResult = 0;
break;
case eIntID_SelectTextfieldsOnKeyFocus:
// Select textfield content when focused by kbd
// used by EventStateManager::sTextfieldSelectModel
aResult = 1;
break;
case eIntID_SubmenuDelay:
aResult = 200;
break;
case eIntID_TooltipDelay:
aResult = 500;
break;
case eIntID_MenusCanOverlapOSBar:
// xul popups are not allowed to overlap the menubar.
aResult = 0;
break;
case eIntID_SkipNavigatingDisabledMenuItem:
aResult = 1;
break;
case eIntID_DragThresholdX:
case eIntID_DragThresholdY:
aResult = 4;
break;
case eIntID_ScrollArrowStyle:
if (nsCocoaFeatures::OnLionOrLater()) {
// OS X Lion's scrollbars have no arrows
aResult = eScrollArrow_None;
} else {
NSString *buttonPlacement = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleScrollBarVariant"];
if ([buttonPlacement isEqualToString:@"Single"]) {
aResult = eScrollArrowStyle_Single;
} else if ([buttonPlacement isEqualToString:@"DoubleMin"]) {
aResult = eScrollArrowStyle_BothAtTop;
} else if ([buttonPlacement isEqualToString:@"DoubleBoth"]) {
aResult = eScrollArrowStyle_BothAtEachEnd;
} else {
aResult = eScrollArrowStyle_BothAtBottom; // The default is BothAtBottom.
}
}
break;
case eIntID_ScrollSliderStyle:
aResult = eScrollThumbStyle_Proportional;
break;
case eIntID_UseOverlayScrollbars:
if (!mUseOverlayScrollbarsCached) {
mUseOverlayScrollbars = SystemWantsOverlayScrollbars() ? 1 : 0;
mUseOverlayScrollbarsCached = true;
}
aResult = mUseOverlayScrollbars;
break;
case eIntID_AllowOverlayScrollbarsOverlap:
if (!mAllowOverlayScrollbarsOverlapCached) {
mAllowOverlayScrollbarsOverlap = AllowOverlayScrollbarsOverlap() ? 1 : 0;
mAllowOverlayScrollbarsOverlapCached = true;
}
aResult = mAllowOverlayScrollbarsOverlap;
break;
case eIntID_ScrollbarDisplayOnMouseMove:
aResult = 0;
break;
case eIntID_ScrollbarFadeBeginDelay:
aResult = 450;
break;
case eIntID_ScrollbarFadeDuration:
aResult = 200;
break;
case eIntID_TreeOpenDelay:
aResult = 1000;
break;
case eIntID_TreeCloseDelay:
aResult = 1000;
break;
case eIntID_TreeLazyScrollDelay:
aResult = 150;
break;
case eIntID_TreeScrollDelay:
aResult = 100;
break;
case eIntID_TreeScrollLinesMax:
aResult = 3;
break;
case eIntID_DWMCompositor:
case eIntID_WindowsClassic:
case eIntID_WindowsDefaultTheme:
case eIntID_TouchEnabled:
case eIntID_WindowsThemeIdentifier:
case eIntID_OperatingSystemVersionIdentifier:
aResult = 0;
res = NS_ERROR_NOT_IMPLEMENTED;
break;
case eIntID_MacGraphiteTheme:
aResult = [NSColor currentControlTint] == NSGraphiteControlTint;
break;
case eIntID_MacLionTheme:
aResult = nsCocoaFeatures::OnLionOrLater();
break;
case eIntID_MacYosemiteTheme:
aResult = nsCocoaFeatures::OnYosemiteOrLater();
break;
case eIntID_AlertNotificationOrigin:
aResult = NS_ALERT_TOP;
break;
case eIntID_TabFocusModel:
{
// we should probably cache this
CFPropertyListRef fullKeyboardAccessProperty;
fullKeyboardAccessProperty = ::CFPreferencesCopyValue(CFSTR("AppleKeyboardUIMode"),
kCFPreferencesAnyApplication,
kCFPreferencesCurrentUser,
kCFPreferencesAnyHost);
aResult = 1; // default to just textboxes
if (fullKeyboardAccessProperty) {
int32_t fullKeyboardAccessPrefVal;
if (::CFNumberGetValue((CFNumberRef) fullKeyboardAccessProperty, kCFNumberIntType, &fullKeyboardAccessPrefVal)) {
// the second bit means "Full keyboard access" is on
if (fullKeyboardAccessPrefVal & (1 << 1))
aResult = 7; // everything that can be focused
}
::CFRelease(fullKeyboardAccessProperty);
}
}
break;
case eIntID_ScrollToClick:
{
aResult = [[NSUserDefaults standardUserDefaults] boolForKey:@"AppleScrollerPagingBehavior"];
}
break;
case eIntID_ChosenMenuItemsShouldBlink:
aResult = 1;
break;
case eIntID_IMERawInputUnderlineStyle:
case eIntID_IMEConvertedTextUnderlineStyle:
case eIntID_IMESelectedRawTextUnderlineStyle:
case eIntID_IMESelectedConvertedTextUnderline:
aResult = NS_STYLE_TEXT_DECORATION_STYLE_SOLID;
break;
case eIntID_SpellCheckerUnderlineStyle:
aResult = NS_STYLE_TEXT_DECORATION_STYLE_DOTTED;
break;
case eIntID_ScrollbarButtonAutoRepeatBehavior:
aResult = 0;
break;
case eIntID_SwipeAnimationEnabled:
aResult = 0;
if ([NSEvent respondsToSelector:@selector(
isSwipeTrackingFromScrollEventsEnabled)]) {
aResult = [NSEvent isSwipeTrackingFromScrollEventsEnabled] ? 1 : 0;
}
break;
case eIntID_ColorPickerAvailable:
aResult = 1;
break;
case eIntID_ContextMenuOffsetVertical:
aResult = -6;
break;
case eIntID_ContextMenuOffsetHorizontal:
aResult = 1;
break;
default:
aResult = 0;
res = NS_ERROR_FAILURE;
}
return res;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult
nsLookAndFeel::GetFloatImpl(FloatID aID, float &aResult)
{
nsresult res = nsXPLookAndFeel::GetFloatImpl(aID, aResult);
if (NS_SUCCEEDED(res))
return res;
res = NS_OK;
switch (aID) {
case eFloatID_IMEUnderlineRelativeSize:
aResult = 2.0f;
break;
case eFloatID_SpellCheckerUnderlineRelativeSize:
aResult = 2.0f;
break;
default:
aResult = -1.0;
res = NS_ERROR_FAILURE;
}
return res;
}
bool nsLookAndFeel::UseOverlayScrollbars()
{
return GetInt(eIntID_UseOverlayScrollbars) != 0;
}
bool nsLookAndFeel::SystemWantsOverlayScrollbars()
{
return ([NSScroller respondsToSelector:@selector(preferredScrollerStyle)] &&
[NSScroller preferredScrollerStyle] == mozNSScrollerStyleOverlay);
}
bool nsLookAndFeel::AllowOverlayScrollbarsOverlap()
{
return (UseOverlayScrollbars() && nsCocoaFeatures::OnMountainLionOrLater());
}
bool
nsLookAndFeel::GetFontImpl(FontID aID, nsString &aFontName,
gfxFontStyle &aFontStyle,
float aDevPixPerCSSPixel)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
// hack for now
if (aID == eFont_Window || aID == eFont_Document) {
aFontStyle.style = NS_FONT_STYLE_NORMAL;
aFontStyle.weight = NS_FONT_WEIGHT_NORMAL;
aFontStyle.stretch = NS_FONT_STRETCH_NORMAL;
aFontStyle.size = 14 * aDevPixPerCSSPixel;
aFontStyle.systemFont = true;
aFontName.AssignLiteral("sans-serif");
return true;
}
gfxPlatformMac::LookupSystemFont(aID, aFontName, aFontStyle,
aDevPixPerCSSPixel);
return true;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
nsTArray<LookAndFeelInt>
nsLookAndFeel::GetIntCacheImpl()
{
nsTArray<LookAndFeelInt> lookAndFeelIntCache =
nsXPLookAndFeel::GetIntCacheImpl();
LookAndFeelInt useOverlayScrollbars;
useOverlayScrollbars.id = eIntID_UseOverlayScrollbars;
useOverlayScrollbars.value = GetInt(eIntID_UseOverlayScrollbars);
lookAndFeelIntCache.AppendElement(useOverlayScrollbars);
LookAndFeelInt allowOverlayScrollbarsOverlap;
allowOverlayScrollbarsOverlap.id = eIntID_AllowOverlayScrollbarsOverlap;
allowOverlayScrollbarsOverlap.value = GetInt(eIntID_AllowOverlayScrollbarsOverlap);
lookAndFeelIntCache.AppendElement(allowOverlayScrollbarsOverlap);
return lookAndFeelIntCache;
}
void
nsLookAndFeel::SetIntCacheImpl(const nsTArray<LookAndFeelInt>& aLookAndFeelIntCache)
{
for (auto entry : aLookAndFeelIntCache) {
switch(entry.id) {
case eIntID_UseOverlayScrollbars:
mUseOverlayScrollbars = entry.value;
mUseOverlayScrollbarsCached = true;
break;
case eIntID_AllowOverlayScrollbarsOverlap:
mAllowOverlayScrollbarsOverlap = entry.value;
mAllowOverlayScrollbarsOverlapCached = true;
break;
}
}
}
void
nsLookAndFeel::RefreshImpl()
{
// We should only clear the cache if we're in the main browser process.
// Otherwise, we should wait for the parent to inform us of new values
// to cache via LookAndFeel::SetIntCache.
if (XRE_IsParentProcess()) {
mUseOverlayScrollbarsCached = false;
mAllowOverlayScrollbarsOverlapCached = false;
}
}