mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
gecko-dev/gfx/thebes/gfxMacPlatformFontList.mm

1037 строки
33 KiB
Plaintext
Исходник Ответственный История

/* -*- Mode: ObjC; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: BSD
*
* Copyright (C) 2006-2009 Mozilla Corporation. All rights reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
* Masayuki Nakano <masayuki@d-toybox.com>
* John Daggett <jdaggett@mozilla.com>
* Jonathan Kew <jfkthame@gmail.com>
*
* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ***** END LICENSE BLOCK ***** */
#ifdef MOZ_LOGGING
#define FORCE_PR_LOG /* Allow logging in the release build */
#endif
#include "prlog.h"
#include <Carbon/Carbon.h>
#include <algorithm>
#import <AppKit/AppKit.h>
#include "gfxPlatformMac.h"
#include "gfxMacPlatformFontList.h"
#include "gfxMacFont.h"
#include "gfxUserFontSet.h"
#include "harfbuzz/hb.h"
#include "harfbuzz/hb-ot.h"
#include "nsServiceManagerUtils.h"
#include "nsTArray.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsISimpleEnumerator.h"
#include "nsCharTraits.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/Preferences.h"
#include "mozilla/Telemetry.h"
#include <unistd.h>
#include <time.h>
using namespace mozilla;
class nsAutoreleasePool {
public:
nsAutoreleasePool()
{
mLocalPool = [[NSAutoreleasePool alloc] init];
}
~nsAutoreleasePool()
{
[mLocalPool release];
}
private:
NSAutoreleasePool *mLocalPool;
};
// indexes into the NSArray objects that the Cocoa font manager returns
// as the available members of a family
#define INDEX_FONT_POSTSCRIPT_NAME 0
#define INDEX_FONT_FACE_NAME 1
#define INDEX_FONT_WEIGHT 2
#define INDEX_FONT_TRAITS 3
static const int kAppleMaxWeight = 14;
static const int kAppleExtraLightWeight = 3;
static const int kAppleUltraLightWeight = 2;
static const int gAppleWeightToCSSWeight[] = {
0,
1, // 1.
1, // 2. W1, ultralight
2, // 3. W2, extralight
3, // 4. W3, light
4, // 5. W4, semilight
5, // 6. W5, medium
6, // 7.
6, // 8. W6, semibold
7, // 9. W7, bold
8, // 10. W8, extrabold
8, // 11.
9, // 12. W9, ultrabold
9, // 13
9 // 14
};
// cache Cocoa's "shared font manager" for performance
static NSFontManager *sFontManager;
static void GetStringForNSString(const NSString *aSrc, nsAString& aDist)
{
aDist.SetLength([aSrc length]);
[aSrc getCharacters:aDist.BeginWriting()];
}
static NSString* GetNSStringForString(const nsAString& aSrc)
{
return [NSString stringWithCharacters:aSrc.BeginReading()
length:aSrc.Length()];
}
#ifdef PR_LOGGING
#define LOG_FONTLIST(args) PR_LOG(gfxPlatform::GetLog(eGfxLog_fontlist), \
PR_LOG_DEBUG, args)
#define LOG_FONTLIST_ENABLED() PR_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_fontlist), \
PR_LOG_DEBUG)
#define LOG_CMAPDATA_ENABLED() PR_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_cmapdata), \
PR_LOG_DEBUG)
#endif // PR_LOGGING
#pragma mark-
// Complex scripts will not render correctly unless appropriate AAT or OT
// layout tables are present.
// For OpenType, we also check that the GSUB table supports the relevant
// script tag, to avoid using things like Arial Unicode MS for Lao (it has
// the characters, but lacks OpenType support).
// TODO: consider whether we should move this to gfxFontEntry and do similar
// cmap-masking on other platforms to avoid using fonts that won't shape
// properly.
struct ScriptRange {
uint32_t rangeStart;
uint32_t rangeEnd;
hb_tag_t tags[3]; // one or two OpenType script tags to check,
// plus a NULL terminator
};
static const ScriptRange sComplexScripts[] = {
// Actually, now that harfbuzz supports presentation-forms shaping for
// Arabic, we can render it without layout tables. So maybe we don't
// want to mask the basic Arabic block here?
// This affects the arabic-fallback-*.html reftests, which rely on
// loading a font that *doesn't* have any GSUB table.
{ 0x0600, 0x06FF, { TRUETYPE_TAG('a','r','a','b'), 0, 0 } },
{ 0x0700, 0x074F, { TRUETYPE_TAG('s','y','r','c'), 0, 0 } },
{ 0x0750, 0x077F, { TRUETYPE_TAG('a','r','a','b'), 0, 0 } },
{ 0x08A0, 0x08FF, { TRUETYPE_TAG('a','r','a','b'), 0, 0 } },
{ 0x0900, 0x097F, { TRUETYPE_TAG('d','e','v','2'),
TRUETYPE_TAG('d','e','v','a'), 0 } },
{ 0x0980, 0x09FF, { TRUETYPE_TAG('b','n','g','2'),
TRUETYPE_TAG('b','e','n','g'), 0 } },
{ 0x0A00, 0x0A7F, { TRUETYPE_TAG('g','u','r','2'),
TRUETYPE_TAG('g','u','r','u'), 0 } },
{ 0x0A80, 0x0AFF, { TRUETYPE_TAG('g','j','r','2'),
TRUETYPE_TAG('g','u','j','r'), 0 } },
{ 0x0B00, 0x0B7F, { TRUETYPE_TAG('o','r','y','2'),
TRUETYPE_TAG('o','r','y','a'), 0 } },
{ 0x0B80, 0x0BFF, { TRUETYPE_TAG('t','m','l','2'),
TRUETYPE_TAG('t','a','m','l'), 0 } },
{ 0x0C00, 0x0C7F, { TRUETYPE_TAG('t','e','l','2'),
TRUETYPE_TAG('t','e','l','u'), 0 } },
{ 0x0C80, 0x0CFF, { TRUETYPE_TAG('k','n','d','2'),
TRUETYPE_TAG('k','n','d','a'), 0 } },
{ 0x0D00, 0x0D7F, { TRUETYPE_TAG('m','l','m','2'),
TRUETYPE_TAG('m','l','y','m'), 0 } },
{ 0x0D80, 0x0DFF, { TRUETYPE_TAG('s','i','n','h'), 0, 0 } },
{ 0x0E80, 0x0EFF, { TRUETYPE_TAG('l','a','o',' '), 0, 0 } },
{ 0x0F00, 0x0FFF, { TRUETYPE_TAG('t','i','b','t'), 0, 0 } },
{ 0x1000, 0x109f, { TRUETYPE_TAG('m','y','m','r'),
TRUETYPE_TAG('m','y','m','2'), 0 } },
{ 0x1780, 0x17ff, { TRUETYPE_TAG('k','h','m','r'), 0, 0 } },
// Khmer Symbols (19e0..19ff) don't seem to need any special shaping
{ 0xaa60, 0xaa7f, { TRUETYPE_TAG('m','y','m','r'),
TRUETYPE_TAG('m','y','m','2'), 0 } },
// Thai seems to be "renderable" without AAT morphing tables
};
static bool
SupportsScriptInGSUB(gfxFontEntry* aFontEntry, const hb_tag_t* aScriptTags)
{
hb_face_t *face = aFontEntry->GetHBFace();
if (!face) {
return false;
}
unsigned int index;
hb_tag_t chosenScript;
bool found =
hb_ot_layout_table_choose_script(face, TRUETYPE_TAG('G','S','U','B'),
aScriptTags, &index, &chosenScript);
hb_face_destroy(face);
return found && chosenScript != TRUETYPE_TAG('D','F','L','T');
}
nsresult
MacOSFontEntry::ReadCMAP()
{
// attempt this once, if errors occur leave a blank cmap
if (mCharacterMap) {
return NS_OK;
}
nsRefPtr<gfxCharacterMap> charmap = new gfxCharacterMap();
uint32_t kCMAP = TRUETYPE_TAG('c','m','a','p');
AutoTable cmapTable(this, kCMAP);
nsresult rv;
if (cmapTable) {
bool unicodeFont = false, symbolFont = false; // currently ignored
uint32_t cmapLen;
const char* cmapData = hb_blob_get_data(cmapTable, &cmapLen);
rv = gfxFontUtils::ReadCMAP((const uint8_t*)cmapData, cmapLen,
*charmap, mUVSOffset,
unicodeFont, symbolFont);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
if (NS_SUCCEEDED(rv) && !HasGraphiteTables()) {
// We assume a Graphite font knows what it's doing,
// and provides whatever shaping is needed for the
// characters it supports, so only check/clear the
// complex-script ranges for non-Graphite fonts
// for layout support, check for the presence of mort/morx and/or
// opentype layout tables
bool hasAATLayout = HasFontTable(TRUETYPE_TAG('m','o','r','x')) ||
HasFontTable(TRUETYPE_TAG('m','o','r','t'));
bool hasGSUB = HasFontTable(TRUETYPE_TAG('G','S','U','B'));
bool hasGPOS = HasFontTable(TRUETYPE_TAG('G','P','O','S'));
if (hasAATLayout && !(hasGSUB || hasGPOS)) {
mRequiresAAT = true; // prefer CoreText if font has no OTL tables
}
uint32_t numScripts = ArrayLength(sComplexScripts);
for (uint32_t s = 0; s < numScripts; s++) {
// check to see if the cmap includes complex script codepoints
const ScriptRange& sr = sComplexScripts[s];
if (charmap->TestRange(sr.rangeStart, sr.rangeEnd)) {
if (hasAATLayout) {
// prefer CoreText for Apple's complex-script fonts,
// even if they also have some OpenType tables
// (e.g. Geeza Pro Bold on 10.6; see bug 614903)
mRequiresAAT = true;
// and don't mask off complex-script ranges, we assume
// the AAT tables will provide the necessary shaping
continue;
}
// We check for GSUB here, as GPOS alone would not be ok.
if (hasGSUB && SupportsScriptInGSUB(this, sr.tags)) {
continue;
}
charmap->ClearRange(sr.rangeStart, sr.rangeEnd);
}
}
}
mHasCmapTable = NS_SUCCEEDED(rv);
if (mHasCmapTable) {
gfxPlatformFontList *pfl = gfxPlatformFontList::PlatformFontList();
mCharacterMap = pfl->FindCharMap(charmap);
} else {
// if error occurred, initialize to null cmap
mCharacterMap = new gfxCharacterMap();
}
#ifdef PR_LOGGING
LOG_FONTLIST(("(fontlist-cmap) name: %s, size: %d hash: %8.8x%s\n",
NS_ConvertUTF16toUTF8(mName).get(),
charmap->SizeOfIncludingThis(moz_malloc_size_of),
charmap->mHash, mCharacterMap == charmap ? " new" : ""));
if (LOG_CMAPDATA_ENABLED()) {
char prefix[256];
sprintf(prefix, "(cmapdata) name: %.220s",
NS_ConvertUTF16toUTF8(mName).get());
charmap->Dump(prefix, eGfxLog_cmapdata);
}
#endif
return rv;
}
gfxFont*
MacOSFontEntry::CreateFontInstance(const gfxFontStyle *aFontStyle, bool aNeedsBold)
{
return new gfxMacFont(this, aFontStyle, aNeedsBold);
}
bool
MacOSFontEntry::IsCFF()
{
if (!mIsCFFInitialized) {
mIsCFFInitialized = true;
mIsCFF = HasFontTable(TRUETYPE_TAG('C','F','F',' '));
}
return mIsCFF;
}
MacOSFontEntry::MacOSFontEntry(const nsAString& aPostscriptName,
int32_t aWeight,
bool aIsStandardFace)
: gfxFontEntry(aPostscriptName, aIsStandardFace),
mFontRef(NULL),
mFontRefInitialized(false),
mRequiresAAT(false),
mIsCFF(false),
mIsCFFInitialized(false)
{
mWeight = aWeight;
}
MacOSFontEntry::MacOSFontEntry(const nsAString& aPostscriptName,
CGFontRef aFontRef,
uint16_t aWeight, uint16_t aStretch,
uint32_t aItalicStyle,
bool aIsUserFont, bool aIsLocal)
: gfxFontEntry(aPostscriptName, false),
mFontRef(NULL),
mFontRefInitialized(false),
mRequiresAAT(false),
mIsCFF(false),
mIsCFFInitialized(false)
{
mFontRef = aFontRef;
mFontRefInitialized = true;
::CFRetain(mFontRef);
mWeight = aWeight;
mStretch = aStretch;
mFixedPitch = false; // xxx - do we need this for downloaded fonts?
mItalic = (aItalicStyle & (NS_FONT_STYLE_ITALIC | NS_FONT_STYLE_OBLIQUE)) != 0;
mIsUserFont = aIsUserFont;
mIsLocalUserFont = aIsLocal;
}
CGFontRef
MacOSFontEntry::GetFontRef()
{
if (!mFontRefInitialized) {
mFontRefInitialized = true;
NSString *psname = GetNSStringForString(mName);
mFontRef = ::CGFontCreateWithFontName(CFStringRef(psname));
}
return mFontRef;
}
/*static*/ void
MacOSFontEntry::DestroyBlobFunc(void* aUserData)
{
::CFRelease((CFDataRef)aUserData);
}
hb_blob_t *
MacOSFontEntry::GetFontTable(uint32_t aTag)
{
CGFontRef fontRef = GetFontRef();
if (!fontRef) {
return nullptr;
}
CFDataRef dataRef = ::CGFontCopyTableForTag(fontRef, aTag);
if (dataRef) {
return hb_blob_create((const char*)::CFDataGetBytePtr(dataRef),
::CFDataGetLength(dataRef),
HB_MEMORY_MODE_READONLY,
(void*)dataRef, DestroyBlobFunc);
}
return nullptr;
}
bool
MacOSFontEntry::HasFontTable(uint32_t aTableTag)
{
nsAutoreleasePool localPool;
CGFontRef fontRef = GetFontRef();
if (!fontRef) {
return false;
}
CFDataRef tableData = ::CGFontCopyTableForTag(fontRef, aTableTag);
if (!tableData) {
return false;
}
::CFRelease(tableData);
return true;
}
void
MacOSFontEntry::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const
{
aSizes->mFontListSize += aMallocSizeOf(this);
SizeOfExcludingThis(aMallocSizeOf, aSizes);
}
/* gfxMacFontFamily */
#pragma mark-
class gfxMacFontFamily : public gfxFontFamily
{
public:
gfxMacFontFamily(nsAString& aName) :
gfxFontFamily(aName)
{}
virtual ~gfxMacFontFamily() {}
virtual void LocalizedName(nsAString& aLocalizedName);
virtual void FindStyleVariations();
};
void
gfxMacFontFamily::LocalizedName(nsAString& aLocalizedName)
{
nsAutoreleasePool localPool;
if (!HasOtherFamilyNames()) {
aLocalizedName = mName;
return;
}
NSString *family = GetNSStringForString(mName);
NSString *localized = [sFontManager
localizedNameForFamily:family
face:nil];
if (localized) {
GetStringForNSString(localized, aLocalizedName);
return;
}
// failed to get localized name, just use the canonical one
aLocalizedName = mName;
}
void
gfxMacFontFamily::FindStyleVariations()
{
if (mHasStyles)
return;
nsAutoreleasePool localPool;
NSString *family = GetNSStringForString(mName);
// create a font entry for each face
NSArray *fontfaces = [sFontManager
availableMembersOfFontFamily:family]; // returns an array of [psname, style name, weight, traits] elements, goofy api
int faceCount = [fontfaces count];
int faceIndex;
// Bug 420981 - under 10.5, UltraLight and Light have the same weight value
bool needToCheckLightFaces =
(gfxPlatformMac::GetPlatform()->OSXVersion() >= MAC_OS_X_VERSION_10_5_HEX);
for (faceIndex = 0; faceIndex < faceCount; faceIndex++) {
NSArray *face = [fontfaces objectAtIndex:faceIndex];
NSString *psname = [face objectAtIndex:INDEX_FONT_POSTSCRIPT_NAME];
int32_t appKitWeight = [[face objectAtIndex:INDEX_FONT_WEIGHT] unsignedIntValue];
uint32_t macTraits = [[face objectAtIndex:INDEX_FONT_TRAITS] unsignedIntValue];
NSString *facename = [face objectAtIndex:INDEX_FONT_FACE_NAME];
bool isStandardFace = false;
if (needToCheckLightFaces && appKitWeight == kAppleExtraLightWeight) {
// if the facename contains UltraLight, set the weight to the ultralight weight value
NSRange range = [facename rangeOfString:@"ultralight" options:NSCaseInsensitiveSearch];
if (range.location != NSNotFound) {
appKitWeight = kAppleUltraLightWeight;
}
}
int32_t cssWeight = gfxMacPlatformFontList::AppleWeightToCSSWeight(appKitWeight) * 100;
// make a nsString
nsAutoString postscriptFontName;
GetStringForNSString(psname, postscriptFontName);
if ([facename isEqualToString:@"Regular"] ||
[facename isEqualToString:@"Bold"] ||
[facename isEqualToString:@"Italic"] ||
[facename isEqualToString:@"Oblique"] ||
[facename isEqualToString:@"Bold Italic"] ||
[facename isEqualToString:@"Bold Oblique"])
{
isStandardFace = true;
}
// create a font entry
MacOSFontEntry *fontEntry =
new MacOSFontEntry(postscriptFontName, cssWeight, isStandardFace);
if (!fontEntry) {
break;
}
// set additional properties based on the traits reported by Cocoa
if (macTraits & (NSCondensedFontMask | NSNarrowFontMask | NSCompressedFontMask)) {
fontEntry->mStretch = NS_FONT_STRETCH_CONDENSED;
} else if (macTraits & NSExpandedFontMask) {
fontEntry->mStretch = NS_FONT_STRETCH_EXPANDED;
}
// Cocoa fails to set the Italic traits bit for HelveticaLightItalic,
// at least (see bug 611855), so check for style name endings as well
if ((macTraits & NSItalicFontMask) ||
[facename hasSuffix:@"Italic"] ||
[facename hasSuffix:@"Oblique"])
{
fontEntry->mItalic = true;
}
if (macTraits & NSFixedPitchFontMask) {
fontEntry->mFixedPitch = true;
}
#ifdef PR_LOGGING
if (LOG_FONTLIST_ENABLED()) {
LOG_FONTLIST(("(fontlist) added (%s) to family (%s)"
" with style: %s weight: %d stretch: %d"
" (apple-weight: %d macTraits: %8.8x)",
NS_ConvertUTF16toUTF8(fontEntry->Name()).get(),
NS_ConvertUTF16toUTF8(Name()).get(),
fontEntry->IsItalic() ? "italic" : "normal",
cssWeight, fontEntry->Stretch(),
appKitWeight, macTraits));
}
#endif
// insert into font entry array of family
AddFontEntry(fontEntry);
}
SortAvailableFonts();
SetHasStyles(true);
if (mIsBadUnderlineFamily) {
SetBadUnderlineFonts();
}
}
/* gfxSingleFaceMacFontFamily */
#pragma mark-
class gfxSingleFaceMacFontFamily : public gfxFontFamily
{
public:
gfxSingleFaceMacFontFamily(nsAString& aName) :
gfxFontFamily(aName)
{}
virtual ~gfxSingleFaceMacFontFamily() {}
virtual void LocalizedName(nsAString& aLocalizedName);
virtual void ReadOtherFamilyNames(gfxPlatformFontList *aPlatformFontList);
};
void
gfxSingleFaceMacFontFamily::LocalizedName(nsAString& aLocalizedName)
{
nsAutoreleasePool localPool;
if (!HasOtherFamilyNames()) {
aLocalizedName = mName;
return;
}
gfxFontEntry *fe = mAvailableFonts[0];
NSFont *font = [NSFont fontWithName:GetNSStringForString(fe->Name())
size:0.0];
if (font) {
NSString *localized = [font displayName];
if (localized) {
GetStringForNSString(localized, aLocalizedName);
return;
}
}
// failed to get localized name, just use the canonical one
aLocalizedName = mName;
}
void
gfxSingleFaceMacFontFamily::ReadOtherFamilyNames(gfxPlatformFontList *aPlatformFontList)
{
if (mOtherFamilyNamesInitialized) {
return;
}
gfxFontEntry *fe = mAvailableFonts[0];
if (!fe) {
return;
}
const uint32_t kNAME = TRUETYPE_TAG('n','a','m','e');
gfxFontEntry::AutoTable nameTable(fe, kNAME);
if (!nameTable) {
return;
}
mHasOtherFamilyNames = ReadOtherFamilyNamesForFace(aPlatformFontList,
nameTable,
true);
mOtherFamilyNamesInitialized = true;
}
/* gfxMacPlatformFontList */
#pragma mark-
gfxMacPlatformFontList::gfxMacPlatformFontList() :
gfxPlatformFontList(false), mATSGeneration(uint32_t(kATSGenerationInitial)),
mDefaultFont(nullptr)
{
::ATSFontNotificationSubscribe(ATSNotification,
kATSFontNotifyOptionDefault,
(void*)this, nullptr);
// cache this in a static variable so that MacOSFontFamily objects
// don't have to repeatedly look it up
sFontManager = [NSFontManager sharedFontManager];
}
gfxMacPlatformFontList::~gfxMacPlatformFontList()
{
if (mDefaultFont) {
::CFRelease(mDefaultFont);
}
}
nsresult
gfxMacPlatformFontList::InitFontList()
{
nsAutoreleasePool localPool;
ATSGeneration currentGeneration = ::ATSGetGeneration();
// need to ignore notifications after adding each font
if (mATSGeneration == currentGeneration)
return NS_OK;
Telemetry::AutoTimer<Telemetry::MAC_INITFONTLIST_TOTAL> timer;
mATSGeneration = currentGeneration;
#ifdef PR_LOGGING
LOG_FONTLIST(("(fontlist) updating to generation: %d", mATSGeneration));
#endif
// reset font lists
gfxPlatformFontList::InitFontList();
// iterate over available families
NSEnumerator *families = [[sFontManager availableFontFamilies]
objectEnumerator]; // returns "canonical", non-localized family name
nsAutoString availableFamilyName;
NSString *availableFamily = nil;
while ((availableFamily = [families nextObject])) {
// make a nsString
GetStringForNSString(availableFamily, availableFamilyName);
// create a family entry
gfxFontFamily *familyEntry = new gfxMacFontFamily(availableFamilyName);
if (!familyEntry) break;
// add the family entry to the hash table
ToLowerCase(availableFamilyName);
mFontFamilies.Put(availableFamilyName, familyEntry);
// check the bad underline blacklist
if (mBadUnderlineFamilyNames.Contains(availableFamilyName))
familyEntry->SetBadUnderlineFamily();
}
InitSingleFaceList();
// to avoid full search of font name tables, seed the other names table with localized names from
// some of the prefs fonts which are accessed via their localized names. changes in the pref fonts will only cause
// a font lookup miss earlier. this is a simple optimization, it's not required for correctness
PreloadNamesList();
// start the delayed cmap loader
GetPrefsAndStartLoader();
return NS_OK;
}
void
gfxMacPlatformFontList::InitSingleFaceList()
{
nsAutoTArray<nsString, 10> singleFaceFonts;
gfxFontUtils::GetPrefsFontList("font.single-face-list", singleFaceFonts);
uint32_t numFonts = singleFaceFonts.Length();
for (uint32_t i = 0; i < numFonts; i++) {
#ifdef PR_LOGGING
LOG_FONTLIST(("(fontlist-singleface) face name: %s\n",
NS_ConvertUTF16toUTF8(singleFaceFonts[i]).get()));
#endif
gfxFontEntry *fontEntry = LookupLocalFont(nullptr, singleFaceFonts[i]);
if (fontEntry) {
nsAutoString familyName, key;
familyName = singleFaceFonts[i];
GenerateFontListKey(familyName, key);
#ifdef PR_LOGGING
LOG_FONTLIST(("(fontlist-singleface) family name: %s, key: %s\n",
NS_ConvertUTF16toUTF8(familyName).get(),
NS_ConvertUTF16toUTF8(key).get()));
#endif
// add only if doesn't exist already
if (!mFontFamilies.GetWeak(key)) {
gfxFontFamily *familyEntry =
new gfxSingleFaceMacFontFamily(familyName);
familyEntry->AddFontEntry(fontEntry);
familyEntry->SetHasStyles(true);
mFontFamilies.Put(key, familyEntry);
#ifdef PR_LOGGING
LOG_FONTLIST(("(fontlist-singleface) added new family\n",
NS_ConvertUTF16toUTF8(familyName).get(),
NS_ConvertUTF16toUTF8(key).get()));
#endif
}
}
}
}
bool
gfxMacPlatformFontList::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
{
gfxFontFamily *family = FindFamily(aFontName);
if (family) {
family->LocalizedName(aFamilyName);
return true;
}
// Gecko 1.8 used Quickdraw font api's which produce a slightly different set of "family"
// names. Try to resolve based on these names, in case this is stored in an old profile
// 1.8: "Futura", "Futura Condensed" ==> 1.9: "Futura"
// convert the name to a Pascal-style Str255 to try as Quickdraw name
Str255 qdname;
NS_ConvertUTF16toUTF8 utf8name(aFontName);
qdname[0] = std::max<size_t>(255, strlen(utf8name.get()));
memcpy(&qdname[1], utf8name.get(), qdname[0]);
// look up the Quickdraw name
ATSFontFamilyRef atsFamily = ::ATSFontFamilyFindFromQuickDrawName(qdname);
if (atsFamily == (ATSFontFamilyRef)kInvalidFontFamily) {
return false;
}
// if we found a family, get its ATS name
CFStringRef cfName;
OSStatus status = ::ATSFontFamilyGetName(atsFamily, kATSOptionFlagsDefault, &cfName);
if (status != noErr) {
return false;
}
// then use this to locate the family entry and retrieve its localized name
nsAutoString familyName;
GetStringForNSString((const NSString*)cfName, familyName);
::CFRelease(cfName);
family = FindFamily(familyName);
if (family) {
family->LocalizedName(aFamilyName);
return true;
}
return false;
}
void
gfxMacPlatformFontList::ATSNotification(ATSFontNotificationInfoRef aInfo,
void* aUserArg)
{
// xxx - should be carefully pruning the list of fonts, not rebuilding it from scratch
static_cast<gfxMacPlatformFontList*>(aUserArg)->UpdateFontList();
// modify a preference that will trigger reflow everywhere
static const char kPrefName[] = "font.internaluseonly.changed";
bool fontInternalChange = Preferences::GetBool(kPrefName, false);
Preferences::SetBool(kPrefName, !fontInternalChange);
}
gfxFontEntry*
gfxMacPlatformFontList::GlobalFontFallback(const uint32_t aCh,
int32_t aRunScript,
const gfxFontStyle* aMatchStyle,
uint32_t& aCmapCount,
gfxFontFamily** aMatchedFamily)
{
bool useCmaps = gfxPlatform::GetPlatform()->UseCmapsDuringSystemFallback();
if (useCmaps) {
return gfxPlatformFontList::GlobalFontFallback(aCh,
aRunScript,
aMatchStyle,
aCmapCount,
aMatchedFamily);
}
CFStringRef str;
UniChar ch[2];
CFIndex len = 1;
if (IS_IN_BMP(aCh)) {
ch[0] = aCh;
str = ::CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, ch, 1,
kCFAllocatorNull);
} else {
ch[0] = H_SURROGATE(aCh);
ch[1] = L_SURROGATE(aCh);
str = ::CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, ch, 2,
kCFAllocatorNull);
if (!str) {
return nullptr;
}
len = 2;
}
// use CoreText to find the fallback family
gfxFontEntry *fontEntry = nullptr;
CTFontRef fallback;
bool cantUseFallbackFont = false;
if (!mDefaultFont) {
mDefaultFont = ::CTFontCreateWithName(CFSTR("Lucida Grande"), 12.f,
NULL);
}
fallback = ::CTFontCreateForString(mDefaultFont, str,
::CFRangeMake(0, len));
if (fallback) {
CFStringRef familyName = ::CTFontCopyFamilyName(fallback);
::CFRelease(fallback);
if (familyName &&
::CFStringCompare(familyName, CFSTR("LastResort"),
kCFCompareCaseInsensitive) != kCFCompareEqualTo)
{
nsAutoTArray<UniChar, 1024> buffer;
CFIndex len = ::CFStringGetLength(familyName);
buffer.SetLength(len+1);
::CFStringGetCharacters(familyName, ::CFRangeMake(0, len),
buffer.Elements());
buffer[len] = 0;
nsDependentString familyName(buffer.Elements(), len);
bool needsBold; // ignored in the system fallback case
gfxFontFamily *family = FindFamily(familyName);
if (family) {
fontEntry = family->FindFontForStyle(*aMatchStyle, needsBold);
if (fontEntry) {
if (fontEntry->TestCharacterMap(aCh)) {
*aMatchedFamily = family;
} else {
fontEntry = nullptr;
cantUseFallbackFont = true;
}
}
}
}
if (familyName) {
::CFRelease(familyName);
}
}
if (cantUseFallbackFont) {
Telemetry::Accumulate(Telemetry::BAD_FALLBACK_FONT, cantUseFallbackFont);
}
::CFRelease(str);
return fontEntry;
}
gfxFontFamily*
gfxMacPlatformFontList::GetDefaultFont(const gfxFontStyle* aStyle)
{
nsAutoreleasePool localPool;
NSString *defaultFamily = [[NSFont userFontOfSize:aStyle->size] familyName];
nsAutoString familyName;
GetStringForNSString(defaultFamily, familyName);
return FindFamily(familyName);
}
int32_t
gfxMacPlatformFontList::AppleWeightToCSSWeight(int32_t aAppleWeight)
{
if (aAppleWeight < 1)
aAppleWeight = 1;
else if (aAppleWeight > kAppleMaxWeight)
aAppleWeight = kAppleMaxWeight;
return gAppleWeightToCSSWeight[aAppleWeight];
}
gfxFontEntry*
gfxMacPlatformFontList::LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
const nsAString& aFontName)
{
nsAutoreleasePool localPool;
NSString *faceName = GetNSStringForString(aFontName);
MacOSFontEntry *newFontEntry;
// lookup face based on postscript or full name
CGFontRef fontRef = ::CGFontCreateWithFontName(CFStringRef(faceName));
if (!fontRef) {
return nullptr;
}
if (aProxyEntry) {
uint16_t w = aProxyEntry->mWeight;
NS_ASSERTION(w >= 100 && w <= 900, "bogus font weight value!");
newFontEntry =
new MacOSFontEntry(aFontName, fontRef,
w, aProxyEntry->mStretch,
aProxyEntry->mItalic ?
NS_FONT_STYLE_ITALIC : NS_FONT_STYLE_NORMAL,
true, true);
} else {
newFontEntry =
new MacOSFontEntry(aFontName, fontRef,
400, 0, NS_FONT_STYLE_NORMAL,
false, false);
}
::CFRelease(fontRef);
return newFontEntry;
}
static void ReleaseData(void *info, const void *data, size_t size)
{
NS_Free((void*)data);
}
gfxFontEntry*
gfxMacPlatformFontList::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
const uint8_t *aFontData,
uint32_t aLength)
{
NS_ASSERTION(aFontData, "MakePlatformFont called with null data");
uint16_t w = aProxyEntry->mWeight;
NS_ASSERTION(w >= 100 && w <= 900, "bogus font weight value!");
// create the font entry
nsAutoString uniqueName;
nsresult rv = gfxFontUtils::MakeUniqueUserFontName(uniqueName);
if (NS_FAILED(rv)) {
return nullptr;
}
CGDataProviderRef provider =
::CGDataProviderCreateWithData(nullptr, aFontData, aLength,
&ReleaseData);
CGFontRef fontRef = ::CGFontCreateWithDataProvider(provider);
::CGDataProviderRelease(provider);
if (!fontRef) {
return nullptr;
}
nsAutoPtr<MacOSFontEntry>
newFontEntry(new MacOSFontEntry(uniqueName, fontRef, w,
aProxyEntry->mStretch,
aProxyEntry->mItalic ?
NS_FONT_STYLE_ITALIC :
NS_FONT_STYLE_NORMAL,
true, false));
::CFRelease(fontRef);
// if succeeded and font cmap is good, return the new font
if (newFontEntry->mIsValid && NS_SUCCEEDED(newFontEntry->ReadCMAP())) {
return newFontEntry.forget();
}
// if something is funky about this font, delete immediately
#if DEBUG
NS_WARNING("downloaded font not loaded properly");
#endif
return nullptr;
}
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку