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gecko-dev/gfx/thebes/gfxMacPlatformFontList.mm

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/* -*- Mode: ObjC; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* ***** 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 ***** */
#include "mozilla/Logging.h"
#include <algorithm>
#import <AppKit/AppKit.h>
#include "gfxPlatformMac.h"
#include "gfxMacPlatformFontList.h"
#include "gfxMacFont.h"
#include "gfxUserFontSet.h"
#include "harfbuzz/hb.h"
#include "MainThreadUtils.h"
#include "nsServiceManagerUtils.h"
#include "nsTArray.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsIDirectoryEnumerator.h"
#include "nsCharTraits.h"
#include "nsCocoaFeatures.h"
#include "nsCocoaUtils.h"
#include "gfxFontConstants.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/FontPropertyTypes.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/Preferences.h"
#include "mozilla/Sprintf.h"
#include "mozilla/Telemetry.h"
#include "mozilla/gfx/2D.h"
#include <unistd.h>
#include <time.h>
#include <dlfcn.h>
using namespace mozilla;
using namespace mozilla::gfx;
using mozilla::dom::SystemFontListEntry;
using mozilla::dom::FontFamilyListEntry;
// 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& aDest)
{
aDest.SetLength([aSrc length]);
[aSrc getCharacters:reinterpret_cast<unichar*>(aDest.BeginWriting())];
}
static NSString* GetNSStringForString(const nsAString& aSrc)
{
return [NSString stringWithCharacters:reinterpret_cast<const unichar*>(aSrc.BeginReading())
length:aSrc.Length()];
}
#define LOG_FONTLIST(args) MOZ_LOG(gfxPlatform::GetLog(eGfxLog_fontlist), \
mozilla::LogLevel::Debug, args)
#define LOG_FONTLIST_ENABLED() MOZ_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_fontlist), \
mozilla::LogLevel::Debug)
#define LOG_CMAPDATA_ENABLED() MOZ_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_cmapdata), \
mozilla::LogLevel::Debug)
#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.
nsresult
MacOSFontEntry::ReadCMAP(FontInfoData *aFontInfoData)
{
// attempt this once, if errors occur leave a blank cmap
if (mCharacterMap) {
return NS_OK;
}
RefPtr<gfxCharacterMap> charmap;
nsresult rv;
if (aFontInfoData && (charmap = GetCMAPFromFontInfo(aFontInfoData,
mUVSOffset))) {
rv = NS_OK;
} else {
uint32_t kCMAP = TRUETYPE_TAG('c','m','a','p');
charmap = new gfxCharacterMap();
AutoTable cmapTable(this, kCMAP);
if (cmapTable) {
uint32_t cmapLen;
const uint8_t* cmapData =
reinterpret_cast<const uint8_t*>(hb_blob_get_data(cmapTable,
&cmapLen));
rv = gfxFontUtils::ReadCMAP(cmapData, cmapLen,
*charmap, mUVSOffset);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
}
if (NS_SUCCEEDED(rv) && !mIsDataUserFont && !HasGraphiteTables()) {
// For downloadable fonts, trust the author and don't
// try to munge the cmap based on script shaping support.
// We also 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/kerx and/or
// opentype layout tables
bool hasAATLayout = HasFontTable(TRUETYPE_TAG('m','o','r','x')) ||
HasFontTable(TRUETYPE_TAG('m','o','r','t'));
bool hasAppleKerning = HasFontTable(TRUETYPE_TAG('k','e','r','x'));
bool hasGSUB = HasFontTable(TRUETYPE_TAG('G','S','U','B'));
bool hasGPOS = HasFontTable(TRUETYPE_TAG('G','P','O','S'));
if ((hasAATLayout && !(hasGSUB || hasGPOS)) || hasAppleKerning) {
mRequiresAAT = true; // prefer CoreText if font has no OTL tables,
// or if it uses the Apple-specific 'kerx'
// variant of kerning table
}
for (const ScriptRange* sr = gfxPlatformFontList::sComplexScriptRanges;
sr->rangeStart; sr++) {
// check to see if the cmap includes complex script codepoints
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(sr->tags, sr->numTags)) {
continue;
}
charmap->ClearRange(sr->rangeStart, sr->rangeEnd);
}
}
// Bug 1360309, 1393624: several of Apple's Chinese fonts have spurious
// blank glyphs for obscure Tibetan and Arabic-script codepoints.
// Blacklist these so that font fallback will not use them.
if (mRequiresAAT && (FamilyName().EqualsLiteral("Songti SC") ||
FamilyName().EqualsLiteral("Songti TC") ||
FamilyName().EqualsLiteral("STSong") ||
// Bug 1390980: on 10.11, the Kaiti fonts are also affected.
FamilyName().EqualsLiteral("Kaiti SC") ||
FamilyName().EqualsLiteral("Kaiti TC") ||
FamilyName().EqualsLiteral("STKaiti"))) {
charmap->ClearRange(0x0f6b, 0x0f70);
charmap->ClearRange(0x0f8c, 0x0f8f);
charmap->clear(0x0f98);
charmap->clear(0x0fbd);
charmap->ClearRange(0x0fcd, 0x0fff);
charmap->clear(0x0620);
charmap->clear(0x065f);
charmap->ClearRange(0x06ee, 0x06ef);
charmap->clear(0x06ff);
}
}
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();
}
LOG_FONTLIST(("(fontlist-cmap) name: %s, size: %zu hash: %8.8x%s\n",
mName.get(),
charmap->SizeOfIncludingThis(moz_malloc_size_of),
charmap->mHash, mCharacterMap == charmap ? " new" : ""));
if (LOG_CMAPDATA_ENABLED()) {
char prefix[256];
SprintfLiteral(prefix, "(cmapdata) name: %.220s",
mName.get());
charmap->Dump(prefix, eGfxLog_cmapdata);
}
return rv;
}
gfxFont*
MacOSFontEntry::CreateFontInstance(const gfxFontStyle *aFontStyle)
{
RefPtr<UnscaledFontMac> unscaledFont(mUnscaledFont);
if (!unscaledFont) {
CGFontRef baseFont = GetFontRef();
if (!baseFont) {
return nullptr;
}
unscaledFont = new UnscaledFontMac(baseFont, mIsDataUserFont);
mUnscaledFont = unscaledFont;
}
return new gfxMacFont(unscaledFont, this, aFontStyle);
}
bool
MacOSFontEntry::HasVariations()
{
if (!mHasVariationsInitialized) {
mHasVariationsInitialized = true;
mHasVariations =
gfxPlatform::GetPlatform()->HasVariationFontSupport() &&
HasFontTable(TRUETYPE_TAG('f','v','a','r'));
}
return mHasVariations;
}
void
MacOSFontEntry::GetVariationAxes(nsTArray<gfxFontVariationAxis>& aVariationAxes)
{
MOZ_ASSERT(aVariationAxes.IsEmpty());
CTFontRef ctFont =
CTFontCreateWithGraphicsFont(mFontRef, 0.0, nullptr, nullptr);
CFArrayRef axes = CTFontCopyVariationAxes(ctFont);
CFRelease(ctFont);
if (axes) {
for (CFIndex i = 0; i < CFArrayGetCount(axes); ++i) {
gfxFontVariationAxis axis;
auto val = (CFDictionaryRef)CFArrayGetValueAtIndex(axes, i);
auto num = (CFNumberRef)CFDictionaryGetValue(val,
kCTFontVariationAxisIdentifierKey);
SInt32 tag = 0;
if (num) {
CFNumberGetValue(num, kCFNumberSInt32Type, &tag);
}
Float32 minValue = 0, maxValue = 0, defaultValue = 0;
num = (CFNumberRef)CFDictionaryGetValue(val,
kCTFontVariationAxisMinimumValueKey);
if (num) {
CFNumberGetValue(num, kCFNumberFloat32Type, &minValue);
}
num = (CFNumberRef)CFDictionaryGetValue(val,
kCTFontVariationAxisMaximumValueKey);
if (num) {
CFNumberGetValue(num, kCFNumberFloat32Type, &maxValue);
}
num = (CFNumberRef)CFDictionaryGetValue(val,
kCTFontVariationAxisDefaultValueKey);
if (num) {
CFNumberGetValue(num, kCFNumberFloat32Type, &defaultValue);
}
auto name = (CFStringRef)CFDictionaryGetValue(val,
kCTFontVariationAxisNameKey);
if (name) {
CFIndex len = CFStringGetLength(name);
nsAutoString nameStr;
nameStr.SetLength(len);
CFStringGetCharacters(name, CFRangeMake(0, len),
(UniChar*)nameStr.BeginWriting());
AppendUTF16toUTF8(nameStr, axis.mName);
}
axis.mTag = (uint32_t)tag;
axis.mMinValue = minValue;
axis.mMaxValue = maxValue;
axis.mDefaultValue = defaultValue;
aVariationAxes.AppendElement(axis);
}
CFRelease(axes);
}
}
void
MacOSFontEntry::GetVariationInstances(nsTArray<gfxFontVariationInstance>& aInstances)
{
gfxFontUtils::GetVariationInstances(this, aInstances);
}
bool
MacOSFontEntry::IsCFF()
{
if (!mIsCFFInitialized) {
mIsCFFInitialized = true;
mIsCFF = HasFontTable(TRUETYPE_TAG('C','F','F',' '));
}
return mIsCFF;
}
MacOSFontEntry::MacOSFontEntry(const nsACString& aPostscriptName,
WeightRange aWeight,
bool aIsStandardFace,
double aSizeHint)
: gfxFontEntry(aPostscriptName, aIsStandardFace),
mFontRef(NULL),
mSizeHint(aSizeHint),
mFontRefInitialized(false),
mRequiresAAT(false),
mIsCFF(false),
mIsCFFInitialized(false),
mHasVariations(false),
mHasVariationsInitialized(false),
mHasAATSmallCaps(false),
mHasAATSmallCapsInitialized(false),
mCheckedForTracking(false),
mCheckedForOpszAxis(false),
mTrakTable(nullptr),
mTrakValues(nullptr),
mTrakSizeTable(nullptr),
mNumTrakSizes(0)
{
mWeightRange = aWeight;
}
MacOSFontEntry::MacOSFontEntry(const nsACString& aPostscriptName,
CGFontRef aFontRef,
WeightRange aWeight,
StretchRange aStretch,
SlantStyleRange aStyle,
bool aIsDataUserFont,
bool aIsLocalUserFont)
: gfxFontEntry(aPostscriptName, false),
mFontRef(NULL),
mSizeHint(0.0),
mFontRefInitialized(false),
mRequiresAAT(false),
mIsCFF(false),
mIsCFFInitialized(false),
mHasVariations(false),
mHasVariationsInitialized(false),
mHasAATSmallCaps(false),
mHasAATSmallCapsInitialized(false),
mCheckedForTracking(false),
mCheckedForOpszAxis(false),
mTrakTable(nullptr),
mTrakValues(nullptr),
mTrakSizeTable(nullptr),
mNumTrakSizes(0)
{
mFontRef = aFontRef;
mFontRefInitialized = true;
::CFRetain(mFontRef);
mWeightRange = aWeight;
mStretchRange = aStretch;
mFixedPitch = false; // xxx - do we need this for downloaded fonts?
mStyleRange = aStyle;
NS_ASSERTION(!(aIsDataUserFont && aIsLocalUserFont),
"userfont is either a data font or a local font");
mIsDataUserFont = aIsDataUserFont;
mIsLocalUserFont = aIsLocalUserFont;
}
gfxFontEntry*
MacOSFontEntry::Clone() const
{
MOZ_ASSERT(!IsUserFont(), "we can only clone installed fonts!");
MacOSFontEntry* fe =
new MacOSFontEntry(Name(), Weight(), mStandardFace, mSizeHint);
fe->mStyleRange = mStyleRange;
fe->mStretchRange = mStretchRange;
fe->mFixedPitch = mFixedPitch;
return fe;
}
CGFontRef
MacOSFontEntry::GetFontRef()
{
if (!mFontRefInitialized) {
mFontRefInitialized = true;
NSString *psname = GetNSStringForString(NS_ConvertUTF8toUTF16(mName));
mFontRef = ::CGFontCreateWithFontName(CFStringRef(psname));
if (!mFontRef) {
// This happens on macOS 10.12 for font entry names that start with
// .AppleSystemUIFont. For those fonts, we need to go through NSFont
// to get the correct CGFontRef.
// Both the Text and the Display variant of the display font use
// .AppleSystemUIFontSomethingSomething as their member names.
// That's why we're carrying along mSizeHint to this place so that
// we get the variant that we want for this family.
NSFont* font = [NSFont fontWithName:psname size:mSizeHint];
if (font) {
mFontRef = CTFontCopyGraphicsFont((CTFontRef)font, nullptr);
}
}
}
return mFontRef;
}
// For a logging build, we wrap the CFDataRef in a FontTableRec so that we can
// use the MOZ_COUNT_[CD]TOR macros in it. A release build without logging
// does not get this overhead.
class FontTableRec {
public:
explicit FontTableRec(CFDataRef aDataRef)
: mDataRef(aDataRef)
{
MOZ_COUNT_CTOR(FontTableRec);
}
~FontTableRec() {
MOZ_COUNT_DTOR(FontTableRec);
::CFRelease(mDataRef);
}
private:
CFDataRef mDataRef;
};
/*static*/ void
MacOSFontEntry::DestroyBlobFunc(void* aUserData)
{
#ifdef NS_BUILD_REFCNT_LOGGING
FontTableRec *ftr = static_cast<FontTableRec*>(aUserData);
delete ftr;
#else
::CFRelease((CFDataRef)aUserData);
#endif
}
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,
#ifdef NS_BUILD_REFCNT_LOGGING
new FontTableRec(dataRef),
#else
(void*)dataRef,
#endif
DestroyBlobFunc);
}
return nullptr;
}
bool
MacOSFontEntry::HasFontTable(uint32_t aTableTag)
{
if (mAvailableTables.Count() == 0) {
nsAutoreleasePool localPool;
CGFontRef fontRef = GetFontRef();
if (!fontRef) {
return false;
}
CFArrayRef tags = ::CGFontCopyTableTags(fontRef);
if (!tags) {
return false;
}
int numTags = (int) ::CFArrayGetCount(tags);
for (int t = 0; t < numTags; t++) {
uint32_t tag = (uint32_t)(uintptr_t)::CFArrayGetValueAtIndex(tags, t);
mAvailableTables.PutEntry(tag);
}
::CFRelease(tags);
}
return mAvailableTables.GetEntry(aTableTag);
}
typedef struct {
AutoSwap_PRUint32 version;
AutoSwap_PRUint16 format;
AutoSwap_PRUint16 horizOffset;
AutoSwap_PRUint16 vertOffset;
AutoSwap_PRUint16 reserved;
// TrackData horizData;
// TrackData vertData;
} TrakHeader;
typedef struct {
AutoSwap_PRUint16 nTracks;
AutoSwap_PRUint16 nSizes;
AutoSwap_PRUint32 sizeTableOffset;
// trackTableEntry trackTable[];
// fixed32 sizeTable[];
} TrackData;
typedef struct {
AutoSwap_PRUint32 track;
AutoSwap_PRUint16 nameIndex;
AutoSwap_PRUint16 offset;
} TrackTableEntry;
bool
MacOSFontEntry::HasTrackingTable()
{
if (!mCheckedForTracking) {
mCheckedForTracking = true;
mTrakTable = GetFontTable(TRUETYPE_TAG('t','r','a','k'));
if (mTrakTable) {
if (!ParseTrakTable()) {
hb_blob_destroy(mTrakTable);
mTrakTable = nullptr;
}
}
}
return mTrakTable != nullptr;
}
bool
MacOSFontEntry::ParseTrakTable()
{
// Check table validity and set up the subtable pointers we need;
// if 'trak' table is invalid, or doesn't contain a 'normal' track,
// return false to tell the caller not to try using it.
unsigned int len;
const char* data = hb_blob_get_data(mTrakTable, &len);
if (len < sizeof(TrakHeader)) {
return false;
}
auto trak = reinterpret_cast<const TrakHeader*>(data);
uint16_t horizOffset = trak->horizOffset;
if (trak->version != 0x00010000 ||
uint16_t(trak->format) != 0 ||
horizOffset == 0 ||
uint16_t(trak->reserved) != 0) {
return false;
}
// Find the horizontal trackData, and check it doesn't overrun the buffer.
if (horizOffset > len - sizeof(TrackData)) {
return false;
}
auto trackData = reinterpret_cast<const TrackData*>(data + horizOffset);
uint16_t nTracks = trackData->nTracks;
mNumTrakSizes = trackData->nSizes;
if (nTracks == 0 || mNumTrakSizes < 2) {
return false;
}
uint32_t sizeTableOffset = trackData->sizeTableOffset;
// Find the trackTable, and check it doesn't overrun the buffer.
if (horizOffset >
len - (sizeof(TrackData) + nTracks * sizeof(TrackTableEntry))) {
return false;
}
auto trackTable = reinterpret_cast<const TrackTableEntry*>
(data + horizOffset + sizeof(TrackData));
// Look for 'normal' tracking, bail out if no such track is present.
unsigned trackIndex;
for (trackIndex = 0; trackIndex < nTracks; ++trackIndex) {
if (trackTable[trackIndex].track == 0x00000000) {
break;
}
}
if (trackIndex == nTracks) {
return false;
}
// Find list of tracking values, and check they won't overrun.
uint16_t offset = trackTable[trackIndex].offset;
if (offset > len - mNumTrakSizes * sizeof(uint16_t)) {
return false;
}
mTrakValues = reinterpret_cast<const AutoSwap_PRInt16*>(data + offset);
// Find the size subtable, and check it doesn't overrun the buffer.
mTrakSizeTable =
reinterpret_cast<const AutoSwap_PRInt32*>(data + sizeTableOffset);
if (mTrakSizeTable + mNumTrakSizes >
reinterpret_cast<const AutoSwap_PRInt32*>(data + len)) {
return false;
}
return true;
}
float
MacOSFontEntry::TrackingForCSSPx(float aSize) const
{
MOZ_ASSERT(mTrakTable && mTrakValues && mTrakSizeTable);
// Find index of first sizeTable entry that is >= the requested size.
Fixed fixedSize = X2Fix(aSize);
unsigned sizeIndex;
for (sizeIndex = 0; sizeIndex < mNumTrakSizes; ++sizeIndex) {
if (mTrakSizeTable[sizeIndex] >= fixedSize) {
break;
}
}
// Return the tracking value for the requested size, or an interpolated
// value if the exact size isn't found.
if (sizeIndex == mNumTrakSizes) {
// Request is larger than last entry in the table, so just use that.
// (We don't attempt to extrapolate more extreme tracking values than
// the largest or smallest present in the table.)
return int16_t(mTrakValues[mNumTrakSizes - 1]);
}
if (sizeIndex == 0 || mTrakSizeTable[sizeIndex] == fixedSize) {
// Found an exact match, or size was smaller than the first entry.
return int16_t(mTrakValues[sizeIndex]);
}
// Requested size falls between two entries: interpolate value.
double s0 = Fix2X(mTrakSizeTable[sizeIndex - 1]);
double s1 = Fix2X(mTrakSizeTable[sizeIndex]);
double t = (aSize - s0) / (s1 - s0);
return (1.0 - t) * int16_t(mTrakValues[sizeIndex - 1]) +
t * int16_t(mTrakValues[sizeIndex]);
}
static bool
CheckForAATSmallCaps(CFArrayRef aFeatures)
{
// Walk the array of feature descriptors from the font, and see whether
// a small-caps feature setting is available.
// Just bail out (returning false) if at any point we fail to find the
// expected dictionary keys, etc; if the font has bad data, we don't even
// try to search the rest of it.
auto numFeatures = CFArrayGetCount(aFeatures);
for (auto f = 0; f < numFeatures; ++f) {
auto featureDict = (CFDictionaryRef)
CFArrayGetValueAtIndex(aFeatures, f);
if (!featureDict) {
return false;
}
auto featureNum = (CFNumberRef)
CFDictionaryGetValue(featureDict,
CFSTR("CTFeatureTypeIdentifier"));
if (!featureNum) {
return false;
}
int16_t featureType;
if (!CFNumberGetValue(featureNum, kCFNumberSInt16Type, &featureType)) {
return false;
}
if (featureType == kLetterCaseType || featureType == kLowerCaseType) {
// Which selector to look for, depending whether we've found the
// legacy LetterCase feature or the new LowerCase one.
const uint16_t smallCaps = (featureType == kLetterCaseType)
? kSmallCapsSelector
: kLowerCaseSmallCapsSelector;
auto selectors = (CFArrayRef)
CFDictionaryGetValue(featureDict,
CFSTR("CTFeatureTypeSelectors"));
if (!selectors) {
return false;
}
auto numSelectors = CFArrayGetCount(selectors);
for (auto s = 0; s < numSelectors; s++) {
auto selectorDict =
(CFDictionaryRef)CFArrayGetValueAtIndex(selectors, s);
if (!selectorDict) {
return false;
}
auto selectorNum = (CFNumberRef)
CFDictionaryGetValue(selectorDict,
CFSTR("CTFeatureSelectorIdentifier"));
if (!selectorNum) {
return false;
}
int16_t selectorValue;
if (!CFNumberGetValue(selectorNum, kCFNumberSInt16Type,
&selectorValue)) {
return false;
}
if (selectorValue == smallCaps) {
return true;
}
}
}
}
return false;
}
bool
MacOSFontEntry::SupportsOpenTypeFeature(Script aScript, uint32_t aFeatureTag)
{
// If we're going to shape with Core Text, we don't support added
// OpenType features (aside from any CT applies by default), except
// for 'smcp' which we map to an AAT feature selector.
if (RequiresAATLayout()) {
if (aFeatureTag != HB_TAG('s','m','c','p')) {
return false;
}
if (mHasAATSmallCapsInitialized) {
return mHasAATSmallCaps;
}
mHasAATSmallCapsInitialized = true;
CTFontRef ctFont =
CTFontCreateWithGraphicsFont(mFontRef, 0.0, nullptr, nullptr);
if (ctFont) {
CFArrayRef features = CTFontCopyFeatures(ctFont);
CFRelease(ctFont);
if (features) {
mHasAATSmallCaps = CheckForAATSmallCaps(features);
CFRelease(features);
}
}
return mHasAATSmallCaps;
}
return gfxFontEntry::SupportsOpenTypeFeature(aScript, aFeatureTag);
}
void
MacOSFontEntry::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const
{
aSizes->mFontListSize += aMallocSizeOf(this);
AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
}
/* gfxMacFontFamily */
#pragma mark-
class gfxMacFontFamily : public gfxFontFamily
{
public:
explicit gfxMacFontFamily(const nsACString& aName, double aSizeHint) :
gfxFontFamily(aName),
mSizeHint(aSizeHint)
{}
virtual ~gfxMacFontFamily() {}
virtual void LocalizedName(nsACString& aLocalizedName);
virtual void FindStyleVariations(FontInfoData *aFontInfoData = nullptr);
virtual bool IsSingleFaceFamily() const
{
return false;
}
protected:
double mSizeHint;
};
void
gfxMacFontFamily::LocalizedName(nsACString& aLocalizedName)
{
nsAutoreleasePool localPool;
// It's unsafe to call HasOtherFamilyNames off the main thread because
// it entrains FindStyleVariations, which calls GetWeightOverride, which
// retrieves prefs. And the pref names can change (via user overrides),
// so we can't use gfxPrefs to access them.
if (NS_IsMainThread() && !HasOtherFamilyNames()) {
aLocalizedName = mName;
return;
}
NSString *family = GetNSStringForString(NS_ConvertUTF8toUTF16(mName));
NSString *localized = [sFontManager
localizedNameForFamily:family
face:nil];
if (localized) {
nsAutoString locName;
GetStringForNSString(localized, locName);
CopyUTF16toUTF8(locName, aLocalizedName);
return;
}
// failed to get localized name, just use the canonical one
aLocalizedName = mName;
}
// Return the CSS weight value to use for the given face, overriding what
// AppKit gives us (used to adjust families with bad weight values, see
// bug 931426).
// A return value of 0 indicates no override - use the existing weight.
static inline int
GetWeightOverride(const nsAString& aPSName)
{
nsAutoCString prefName("font.weight-override.");
// The PostScript name is required to be ASCII; if it's not, the font is
// broken anyway, so we really don't care that this is lossy.
LossyAppendUTF16toASCII(aPSName, prefName);
return Preferences::GetInt(prefName.get(), 0);
}
void
gfxMacFontFamily::FindStyleVariations(FontInfoData *aFontInfoData)
{
if (mHasStyles)
return;
nsAutoreleasePool localPool;
NSString *family = GetNSStringForString(NS_ConvertUTF8toUTF16(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;
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 (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;
}
}
// make a nsString
nsAutoString postscriptFontName;
GetStringForNSString(psname, postscriptFontName);
int32_t cssWeight = GetWeightOverride(postscriptFontName);
if (cssWeight) {
// scale down and clamp, to get a value from 1..9
cssWeight = ((cssWeight + 50) / 100);
cssWeight = std::max(1, std::min(cssWeight, 9));
} else {
cssWeight =
gfxMacPlatformFontList::AppleWeightToCSSWeight(appKitWeight);
}
cssWeight *= 100; // scale up to CSS values
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(NS_ConvertUTF16toUTF8(postscriptFontName),
WeightRange(FontWeight(cssWeight)),
isStandardFace, mSizeHint);
if (!fontEntry) {
break;
}
// set additional properties based on the traits reported by Cocoa
if (macTraits & (NSCondensedFontMask | NSNarrowFontMask | NSCompressedFontMask)) {
fontEntry->mStretchRange = StretchRange(FontStretch::Condensed());
} else if (macTraits & NSExpandedFontMask) {
fontEntry->mStretchRange = StretchRange(FontStretch::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->mStyleRange = SlantStyleRange(FontSlantStyle::Italic());
}
if (macTraits & NSFixedPitchFontMask) {
fontEntry->mFixedPitch = true;
}
if (gfxPlatform::GetPlatform()->HasVariationFontSupport()) {
fontEntry->SetupVariationRanges();
}
if (LOG_FONTLIST_ENABLED()) {
nsAutoCString weightString;
fontEntry->Weight().ToString(weightString);
nsAutoCString stretchString;
fontEntry->Stretch().ToString(stretchString);
LOG_FONTLIST(("(fontlist) added (%s) to family (%s)"
" with style: %s weight: %s stretch: %s"
" (apple-weight: %d macTraits: %8.8x)",
fontEntry->Name().get(),
Name().get(),
fontEntry->IsItalic() ? "italic" : "normal",
weightString.get(),
stretchString.get(),
appKitWeight, macTraits));
}
// insert into font entry array of family
AddFontEntry(fontEntry);
}
SortAvailableFonts();
SetHasStyles(true);
if (mIsBadUnderlineFamily) {
SetBadUnderlineFonts();
}
}
/* gfxSingleFaceMacFontFamily */
#pragma mark-
class gfxSingleFaceMacFontFamily : public gfxFontFamily
{
public:
explicit gfxSingleFaceMacFontFamily(const nsACString& aName) :
gfxFontFamily(aName)
{
mFaceNamesInitialized = true; // omit from face name lists
}
virtual ~gfxSingleFaceMacFontFamily() {}
virtual void LocalizedName(nsACString& aLocalizedName);
virtual void ReadOtherFamilyNames(gfxPlatformFontList *aPlatformFontList);
virtual bool IsSingleFaceFamily() const
{
return true;
}
};
void
gfxSingleFaceMacFontFamily::LocalizedName(nsACString& aLocalizedName)
{
nsAutoreleasePool localPool;
if (!HasOtherFamilyNames()) {
aLocalizedName = mName;
return;
}
gfxFontEntry *fe = mAvailableFonts[0];
NSFont *font = [NSFont fontWithName:GetNSStringForString(NS_ConvertUTF8toUTF16(fe->Name()))
size:0.0];
if (font) {
NSString *localized = [font displayName];
if (localized) {
nsAutoString locName;
GetStringForNSString(localized, locName);
CopyUTF16toUTF8(locName, 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-
// A bunch of fonts for "additional language support" are shipped in a
// "Language Support" directory, and don't show up in the standard font
// list returned by CTFontManagerCopyAvailableFontFamilyNames unless
// we explicitly activate them.
#define LANG_FONTS_DIR "/Library/Application Support/Apple/Fonts/Language Support"
gfxMacPlatformFontList::gfxMacPlatformFontList() :
gfxPlatformFontList(false),
mDefaultFont(nullptr),
mUseSizeSensitiveSystemFont(false)
{
#ifdef MOZ_BUNDLED_FONTS
ActivateBundledFonts();
#endif
nsresult rv;
nsCOMPtr<nsIFile> langFonts(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
if (NS_SUCCEEDED(rv)) {
rv = langFonts->InitWithNativePath(NS_LITERAL_CSTRING(LANG_FONTS_DIR));
if (NS_SUCCEEDED(rv)) {
ActivateFontsFromDir(langFonts);
}
}
// Only the parent process listens for OS font-changed notifications;
// after rebuilding its list, it will update the content processes.
if (XRE_IsParentProcess()) {
::CFNotificationCenterAddObserver(
::CFNotificationCenterGetLocalCenter(),
this,
RegisteredFontsChangedNotificationCallback,
kCTFontManagerRegisteredFontsChangedNotification,
0,
CFNotificationSuspensionBehaviorDeliverImmediately);
}
// cache this in a static variable so that MacOSFontFamily objects
// don't have to repeatedly look it up
sFontManager = [NSFontManager sharedFontManager];
}
gfxMacPlatformFontList::~gfxMacPlatformFontList()
{
if (XRE_IsParentProcess()) {
::CFNotificationCenterRemoveObserver(
::CFNotificationCenterGetLocalCenter(),
this,
kCTFontManagerRegisteredFontsChangedNotification,
0);
}
if (mDefaultFont) {
::CFRelease(mDefaultFont);
}
}
void
gfxMacPlatformFontList::AddFamily(const nsACString& aFamilyName,
bool aSystemFont)
{
FontFamilyTable& table =
aSystemFont ? mSystemFontFamilies : mFontFamilies;
double sizeHint = 0.0;
if (aSystemFont && mUseSizeSensitiveSystemFont &&
mSystemDisplayFontFamilyName.Equals(aFamilyName)) {
sizeHint = 128.0;
}
nsAutoCString key;
ToLowerCase(aFamilyName, key);
RefPtr<gfxFontFamily> familyEntry =
new gfxMacFontFamily(aFamilyName, sizeHint);
table.Put(key, familyEntry);
// check the bad underline blacklist
if (mBadUnderlineFamilyNames.ContainsSorted(key)) {
familyEntry->SetBadUnderlineFamily();
}
}
void
gfxMacPlatformFontList::AddFamily(CFStringRef aFamily)
{
NSString* family = (NSString*)aFamily;
// CTFontManager includes weird internal family names and
// LastResort, skip over those
if (!family ||
[family caseInsensitiveCompare:@"LastResort"] == NSOrderedSame ||
[family caseInsensitiveCompare:@".LastResort"] == NSOrderedSame) {
return;
}
nsAutoString familyName;
nsCocoaUtils::GetStringForNSString(family, familyName);
bool isHiddenSystemFont = familyName[0] == '.';
AddFamily(NS_ConvertUTF16toUTF8(familyName), isHiddenSystemFont);
}
void
gfxMacPlatformFontList::ReadSystemFontList(
InfallibleTArray<SystemFontListEntry>* aList)
{
// Note: We rely on the records for mSystemTextFontFamilyName and
// mSystemDisplayFontFamilyName (if present) being *before* the main
// font list, so that those names are known in the content process
// by the time we add the actual family records to the font list.
aList->AppendElement(FontFamilyListEntry(mSystemTextFontFamilyName,
kTextSizeSystemFontFamily));
if (mUseSizeSensitiveSystemFont) {
aList->AppendElement(FontFamilyListEntry(mSystemDisplayFontFamilyName,
kDisplaySizeSystemFontFamily));
}
// Now collect the lists of available families, both hidden and visible.
for (auto f = mSystemFontFamilies.Iter(); !f.Done(); f.Next()) {
aList->AppendElement(FontFamilyListEntry(f.Data()->Name(),
kHiddenSystemFontFamily));
}
for (auto f = mFontFamilies.Iter(); !f.Done(); f.Next()) {
auto macFamily = static_cast<gfxMacFontFamily*>(f.Data().get());
if (macFamily->IsSingleFaceFamily()) {
continue; // skip, this will be recreated separately in the child
}
aList->AppendElement(FontFamilyListEntry(macFamily->Name(),
kStandardFontFamily));
}
}
nsresult
gfxMacPlatformFontList::InitFontListForPlatform()
{
nsAutoreleasePool localPool;
Telemetry::AutoTimer<Telemetry::MAC_INITFONTLIST_TOTAL> timer;
// reset system font list
mSystemFontFamilies.Clear();
if (XRE_IsContentProcess()) {
// Content process: use font list passed from the chrome process via
// the GetXPCOMProcessAttributes message, because it's much faster than
// querying Core Text again in the child.
auto& fontList = dom::ContentChild::GetSingleton()->SystemFontList();
for (SystemFontListEntry& fle : fontList) {
MOZ_ASSERT(fle.type() ==
SystemFontListEntry::Type::TFontFamilyListEntry);
FontFamilyListEntry& ffe(fle);
switch (ffe.entryType()) {
case kStandardFontFamily:
AddFamily(ffe.familyName(), false);
break;
case kHiddenSystemFontFamily:
AddFamily(ffe.familyName(), true);
break;
case kTextSizeSystemFontFamily:
mSystemTextFontFamilyName = ffe.familyName();
break;
case kDisplaySizeSystemFontFamily:
mSystemDisplayFontFamilyName = ffe.familyName();
mUseSizeSensitiveSystemFont = true;
break;
}
}
fontList.Clear();
} else {
// We're not a content process, so get the available fonts directly
// from Core Text.
InitSystemFontNames();
CFArrayRef familyNames = CTFontManagerCopyAvailableFontFamilyNames();
for (NSString* familyName in (NSArray*)familyNames) {
AddFamily((CFStringRef)familyName);
}
CFRelease(familyNames);
}
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()
{
AutoTArray<nsCString, 10> singleFaceFonts;
gfxFontUtils::GetPrefsFontList("font.single-face-list", singleFaceFonts);
for (auto& familyName : singleFaceFonts) {
LOG_FONTLIST(("(fontlist-singleface) face name: %s\n",
familyName.get()));
// Each entry in the "single face families" list is expected to be a
// colon-separated pair of FaceName:Family,
// where FaceName is the individual face name (psname) of a font
// that should be exposed as a separate family name,
// and Family is the standard family to which that face belongs.
// The only such face listed by default is
// Osaka-Mono:Osaka
auto colon = familyName.FindChar(':');
if (colon == kNotFound) {
continue;
}
// Look for the parent family in the main font family list,
// and ensure we have loaded its list of available faces.
nsAutoCString key(Substring(familyName, colon + 1));
ToLowerCase(key);
gfxFontFamily* family = mFontFamilies.GetWeak(key);
if (!family) {
continue;
}
family->FindStyleVariations();
// Truncate the entry from prefs at the colon, so now it is just the
// desired single-face-family name.
familyName.Truncate(colon);
// Look through the family's faces to see if this one is present.
const gfxFontEntry* fe = nullptr;
for (const auto& face : family->GetFontList()) {
if (face->Name().Equals(familyName)) {
fe = face;
break;
}
}
if (!fe) {
continue;
}
// We found the correct face, so create the single-face family record.
GenerateFontListKey(familyName, key);
LOG_FONTLIST(("(fontlist-singleface) family name: %s, key: %s\n",
familyName.get(),
key.get()));
// add only if doesn't exist already
if (!mFontFamilies.GetWeak(key)) {
RefPtr<gfxFontFamily> familyEntry =
new gfxSingleFaceMacFontFamily(familyName);
// We need a separate font entry, because its family name will
// differ from the one we found in the main list.
MacOSFontEntry* fontEntry =
new MacOSFontEntry(fe->Name(), fe->Weight(), true,
static_cast<const MacOSFontEntry*>(fe)->
mSizeHint);
familyEntry->AddFontEntry(fontEntry);
familyEntry->SetHasStyles(true);
mFontFamilies.Put(key, familyEntry);
LOG_FONTLIST(("(fontlist-singleface) added new family: %s, key: %s\n",
familyName.get(),
key.get()));
}
}
}
// System fonts under OSX may contain weird "meta" names but if we create
// a new font using just the Postscript name, the NSFont api returns an object
// with the actual real family name. For example, under OSX 10.11:
//
// [[NSFont menuFontOfSize:8.0] familyName] ==> .AppleSystemUIFont
// [[NSFont fontWithName:[[[NSFont menuFontOfSize:8.0] fontDescriptor] postscriptName]
// size:8.0] familyName] ==> .SF NS Text
static NSString* GetRealFamilyName(NSFont* aFont)
{
NSFont* f = [NSFont fontWithName: [[aFont fontDescriptor] postscriptName]
size: 0.0];
return [f familyName];
}
// System fonts under OSX 10.11 use a combination of two families, one
// for text sizes and another for larger, display sizes. Each has a
// different number of weights. There aren't efficient API's for looking
// this information up, so hard code the logic here but confirm via
// debug assertions that the logic is correct.
const CGFloat kTextDisplayCrossover = 20.0; // use text family below this size
void
gfxMacPlatformFontList::InitSystemFontNames()
{
// system font under 10.11 are two distinct families for text/display sizes
if (nsCocoaFeatures::OnElCapitanOrLater()) {
mUseSizeSensitiveSystemFont = true;
}
// text font family
NSFont* sys = [NSFont systemFontOfSize: 0.0];
NSString* textFamilyName = GetRealFamilyName(sys);
nsAutoString familyName;
nsCocoaUtils::GetStringForNSString(textFamilyName, familyName);
CopyUTF16toUTF8(familyName, mSystemTextFontFamilyName);
// display font family, if on OSX 10.11
if (mUseSizeSensitiveSystemFont) {
NSFont* displaySys = [NSFont systemFontOfSize: 128.0];
NSString* displayFamilyName = GetRealFamilyName(displaySys);
nsCocoaUtils::GetStringForNSString(displayFamilyName, familyName);
CopyUTF16toUTF8(familyName, mSystemDisplayFontFamilyName);
#if DEBUG
// confirm that the optical size switch is at 20.0
NS_ASSERTION([textFamilyName compare:displayFamilyName] != NSOrderedSame,
"system text/display fonts are the same!");
NSString* fam19 = GetRealFamilyName([NSFont systemFontOfSize:
(kTextDisplayCrossover - 1.0)]);
NSString* fam20 = GetRealFamilyName([NSFont systemFontOfSize:
kTextDisplayCrossover]);
NS_ASSERTION(fam19 && fam20 && [fam19 compare:fam20] != NSOrderedSame,
"system text/display font size switch point is not as expected!");
#endif
}
#ifdef DEBUG
// different system font API's always map to the same family under OSX, so
// just assume that and emit a warning if that ever changes
NSString *sysFamily = GetRealFamilyName([NSFont systemFontOfSize:0.0]);
if ([sysFamily compare:GetRealFamilyName([NSFont boldSystemFontOfSize:0.0])] != NSOrderedSame ||
[sysFamily compare:GetRealFamilyName([NSFont controlContentFontOfSize:0.0])] != NSOrderedSame ||
[sysFamily compare:GetRealFamilyName([NSFont menuBarFontOfSize:0.0])] != NSOrderedSame ||
[sysFamily compare:GetRealFamilyName([NSFont toolTipsFontOfSize:0.0])] != NSOrderedSame) {
NS_WARNING("system font types map to different font families"
" -- please log a bug!!");
}
#endif
}
gfxFontFamily*
gfxMacPlatformFontList::FindSystemFontFamily(const nsACString& aFamily)
{
nsAutoCString key;
GenerateFontListKey(aFamily, key);
gfxFontFamily* familyEntry;
// lookup in hidden system family name list
if ((familyEntry = mSystemFontFamilies.GetWeak(key))) {
return CheckFamily(familyEntry);
}
// lookup in user-exposed family name list
if ((familyEntry = mFontFamilies.GetWeak(key))) {
return CheckFamily(familyEntry);
}
return nullptr;
}
bool
gfxMacPlatformFontList::GetStandardFamilyName(const nsCString& aFontName,
nsACString& aFamilyName)
{
gfxFontFamily *family = FindFamily(aFontName);
if (family) {
family->LocalizedName(aFamilyName);
return true;
}
return false;
}
void
gfxMacPlatformFontList::RegisteredFontsChangedNotificationCallback(CFNotificationCenterRef center,
void *observer,
CFStringRef name,
const void *object,
CFDictionaryRef userInfo)
{
if (!::CFEqual(name, kCTFontManagerRegisteredFontsChangedNotification)) {
return;
}
gfxMacPlatformFontList* fl = static_cast<gfxMacPlatformFontList*>(observer);
// xxx - should be carefully pruning the list of fonts, not rebuilding it from scratch
fl->UpdateFontList();
// modify a preference that will trigger reflow everywhere
fl->ForceGlobalReflow();
mozilla::dom::ContentParent::NotifyUpdatedFonts();
}
gfxFontEntry*
gfxMacPlatformFontList::PlatformGlobalFontFallback(const uint32_t aCh,
Script aRunScript,
const gfxFontStyle* aMatchStyle,
gfxFontFamily** aMatchedFamily)
{
CFStringRef str;
UniChar ch[2];
CFIndex length = 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;
}
length = 2;
}
// use CoreText to find the fallback family
gfxFontEntry *fontEntry = nullptr;
CTFontRef fallback;
bool cantUseFallbackFont = false;
if (!mDefaultFont) {
mDefaultFont = ::CTFontCreateWithName(CFSTR("LucidaGrande"), 12.f,
NULL);
}
fallback = ::CTFontCreateForString(mDefaultFont, str,
::CFRangeMake(0, length));
if (fallback) {
CFStringRef familyNameRef = ::CTFontCopyFamilyName(fallback);
::CFRelease(fallback);
if (familyNameRef &&
::CFStringCompare(familyNameRef, CFSTR("LastResort"),
kCFCompareCaseInsensitive) != kCFCompareEqualTo &&
::CFStringCompare(familyNameRef, CFSTR(".LastResort"),
kCFCompareCaseInsensitive) != kCFCompareEqualTo)
{
AutoTArray<UniChar, 1024> buffer;
CFIndex familyNameLen = ::CFStringGetLength(familyNameRef);
buffer.SetLength(familyNameLen+1);
::CFStringGetCharacters(familyNameRef, ::CFRangeMake(0, familyNameLen),
buffer.Elements());
buffer[familyNameLen] = 0;
NS_ConvertUTF16toUTF8 familyNameString(
reinterpret_cast<char16_t*>(buffer.Elements()), familyNameLen);
gfxFontFamily *family = FindSystemFontFamily(familyNameString);
if (family) {
fontEntry = family->FindFontForStyle(*aMatchStyle);
if (fontEntry) {
if (fontEntry->HasCharacter(aCh)) {
*aMatchedFamily = family;
} else {
fontEntry = nullptr;
cantUseFallbackFont = true;
}
}
}
}
if (familyNameRef) {
::CFRelease(familyNameRef);
}
}
if (cantUseFallbackFont) {
Telemetry::Accumulate(Telemetry::BAD_FALLBACK_FONT, cantUseFallbackFont);
}
::CFRelease(str);
return fontEntry;
}
gfxFontFamily*
gfxMacPlatformFontList::GetDefaultFontForPlatform(const gfxFontStyle* aStyle)
{
nsAutoreleasePool localPool;
NSString *defaultFamily = [[NSFont userFontOfSize:aStyle->size] familyName];
nsAutoString familyName;
GetStringForNSString(defaultFamily, familyName);
return FindFamily(NS_ConvertUTF16toUTF8(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 nsACString& aFontName,
WeightRange aWeightForEntry,
StretchRange aStretchForEntry,
SlantStyleRange aStyleForEntry)
{
nsAutoreleasePool localPool;
NSString *faceName = GetNSStringForString(NS_ConvertUTF8toUTF16(aFontName));
MacOSFontEntry *newFontEntry;
// lookup face based on postscript or full name
CGFontRef fontRef = ::CGFontCreateWithFontName(CFStringRef(faceName));
if (!fontRef) {
return nullptr;
}
newFontEntry =
new MacOSFontEntry(aFontName, fontRef, aWeightForEntry,
aStretchForEntry, aStyleForEntry,
false, true);
::CFRelease(fontRef);
return newFontEntry;
}
static void ReleaseData(void *info, const void *data, size_t size)
{
free((void*)data);
}
gfxFontEntry*
gfxMacPlatformFontList::MakePlatformFont(const nsACString& aFontName,
WeightRange aWeightForEntry,
StretchRange aStretchForEntry,
SlantStyleRange aStyleForEntry,
const uint8_t* aFontData,
uint32_t aLength)
{
NS_ASSERTION(aFontData, "MakePlatformFont called with null data");
// 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;
}
auto newFontEntry =
MakeUnique<MacOSFontEntry>(NS_ConvertUTF16toUTF8(uniqueName), fontRef, aWeightForEntry,
aStretchForEntry, aStyleForEntry,
true, false);
::CFRelease(fontRef);
// if succeeded and font cmap is good, return the new font
if (NS_SUCCEEDED(newFontEntry->ReadCMAP())) {
return newFontEntry.release();
}
// if something is funky about this font, delete immediately
#if DEBUG
NS_WARNING("downloaded font not loaded properly");
#endif
return nullptr;
}
// Webkit code uses a system font meta name, so mimic that here
// WebCore/platform/graphics/mac/FontCacheMac.mm
static const char kSystemFont_system[] = "-apple-system";
bool
gfxMacPlatformFontList::FindAndAddFamilies(const nsACString& aFamily,
nsTArray<FamilyAndGeneric>* aOutput,
FindFamiliesFlags aFlags,
gfxFontStyle* aStyle,
gfxFloat aDevToCssSize)
{
// search for special system font name, -apple-system
if (aFamily.EqualsLiteral(kSystemFont_system)) {
if (mUseSizeSensitiveSystemFont &&
aStyle && (aStyle->size * aDevToCssSize) >= kTextDisplayCrossover) {
aOutput->AppendElement(FindSystemFontFamily(mSystemDisplayFontFamilyName));
return true;
}
aOutput->AppendElement(FindSystemFontFamily(mSystemTextFontFamilyName));
return true;
}
return gfxPlatformFontList::FindAndAddFamilies(aFamily,
aOutput,
aFlags,
aStyle,
aDevToCssSize);
}
void
gfxMacPlatformFontList::LookupSystemFont(LookAndFeel::FontID aSystemFontID,
nsACString& aSystemFontName,
gfxFontStyle &aFontStyle,
float aDevPixPerCSSPixel)
{
// code moved here from widget/cocoa/nsLookAndFeel.mm
NSFont *font = nullptr;
char* systemFontName = nullptr;
switch (aSystemFontID) {
case LookAndFeel::eFont_MessageBox:
case LookAndFeel::eFont_StatusBar:
case LookAndFeel::eFont_List:
case LookAndFeel::eFont_Field:
case LookAndFeel::eFont_Button:
case LookAndFeel::eFont_Widget:
font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
systemFontName = (char*) kSystemFont_system;
break;
case LookAndFeel::eFont_SmallCaption:
font = [NSFont boldSystemFontOfSize:[NSFont smallSystemFontSize]];
systemFontName = (char*) kSystemFont_system;
break;
case LookAndFeel::eFont_Icon: // used in urlbar; tried labelFont, but too small
case LookAndFeel::eFont_Workspace:
case LookAndFeel::eFont_Desktop:
case LookAndFeel::eFont_Info:
font = [NSFont controlContentFontOfSize:0.0];
systemFontName = (char*) kSystemFont_system;
break;
case LookAndFeel::eFont_PullDownMenu:
font = [NSFont menuBarFontOfSize:0.0];
systemFontName = (char*) kSystemFont_system;
break;
case LookAndFeel::eFont_Tooltips:
font = [NSFont toolTipsFontOfSize:0.0];
systemFontName = (char*) kSystemFont_system;
break;
case LookAndFeel::eFont_Caption:
case LookAndFeel::eFont_Menu:
case LookAndFeel::eFont_Dialog:
default:
font = [NSFont systemFontOfSize:0.0];
systemFontName = (char*) kSystemFont_system;
break;
}
NS_ASSERTION(font, "system font not set");
NS_ASSERTION(systemFontName, "system font name not set");
if (systemFontName) {
aSystemFontName.AssignASCII(systemFontName);
}
NSFontSymbolicTraits traits = [[font fontDescriptor] symbolicTraits];
aFontStyle.style =
(traits & NSFontItalicTrait) ? FontSlantStyle::Italic() : FontSlantStyle::Normal();
aFontStyle.weight =
(traits & NSFontBoldTrait) ? FontWeight::Bold() : FontWeight::Normal();
aFontStyle.stretch =
(traits & NSFontExpandedTrait) ?
FontStretch::Expanded() : (traits & NSFontCondensedTrait) ?
FontStretch::Condensed() : FontStretch::Normal();
// convert size from css pixels to device pixels
aFontStyle.size = [font pointSize] * aDevPixPerCSSPixel;
aFontStyle.systemFont = true;
}
// used to load system-wide font info on off-main thread
class MacFontInfo : public FontInfoData {
public:
MacFontInfo(bool aLoadOtherNames,
bool aLoadFaceNames,
bool aLoadCmaps) :
FontInfoData(aLoadOtherNames, aLoadFaceNames, aLoadCmaps)
{}
virtual ~MacFontInfo() {}
virtual void Load() {
nsAutoreleasePool localPool;
FontInfoData::Load();
}
// loads font data for all members of a given family
virtual void LoadFontFamilyData(const nsACString& aFamilyName);
};
void
MacFontInfo::LoadFontFamilyData(const nsACString& aFamilyName)
{
// family name ==> CTFontDescriptor
NSString *famName = GetNSStringForString(NS_ConvertUTF8toUTF16(aFamilyName));
CFStringRef family = CFStringRef(famName);
CFMutableDictionaryRef attr =
CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionaryAddValue(attr, kCTFontFamilyNameAttribute, family);
CTFontDescriptorRef fd = CTFontDescriptorCreateWithAttributes(attr);
CFRelease(attr);
CFArrayRef matchingFonts =
CTFontDescriptorCreateMatchingFontDescriptors(fd, NULL);
CFRelease(fd);
if (!matchingFonts) {
return;
}
nsTArray<nsCString> otherFamilyNames;
bool hasOtherFamilyNames = true;
// iterate over faces in the family
int f, numFaces = (int) CFArrayGetCount(matchingFonts);
for (f = 0; f < numFaces; f++) {
mLoadStats.fonts++;
CTFontDescriptorRef faceDesc =
(CTFontDescriptorRef)CFArrayGetValueAtIndex(matchingFonts, f);
if (!faceDesc) {
continue;
}
CTFontRef fontRef = CTFontCreateWithFontDescriptor(faceDesc,
0.0, nullptr);
if (!fontRef) {
NS_WARNING("failed to create a CTFontRef");
continue;
}
if (mLoadCmaps) {
// face name
CFStringRef faceName = (CFStringRef)
CTFontDescriptorCopyAttribute(faceDesc, kCTFontNameAttribute);
AutoTArray<UniChar, 1024> buffer;
CFIndex len = CFStringGetLength(faceName);
buffer.SetLength(len+1);
CFStringGetCharacters(faceName, ::CFRangeMake(0, len),
buffer.Elements());
buffer[len] = 0;
NS_ConvertUTF16toUTF8 fontName(
reinterpret_cast<char16_t*>(buffer.Elements()), len);
// load the cmap data
FontFaceData fontData;
CFDataRef cmapTable = CTFontCopyTable(fontRef, kCTFontTableCmap,
kCTFontTableOptionNoOptions);
if (cmapTable) {
const uint8_t *cmapData =
(const uint8_t*)CFDataGetBytePtr(cmapTable);
uint32_t cmapLen = CFDataGetLength(cmapTable);
RefPtr<gfxCharacterMap> charmap = new gfxCharacterMap();
uint32_t offset;
nsresult rv;
rv = gfxFontUtils::ReadCMAP(cmapData, cmapLen, *charmap, offset);
if (NS_SUCCEEDED(rv)) {
fontData.mCharacterMap = charmap;
fontData.mUVSOffset = offset;
mLoadStats.cmaps++;
}
CFRelease(cmapTable);
}
mFontFaceData.Put(fontName, fontData);
CFRelease(faceName);
}
if (mLoadOtherNames && hasOtherFamilyNames) {
CFDataRef nameTable = CTFontCopyTable(fontRef, kCTFontTableName,
kCTFontTableOptionNoOptions);
if (nameTable) {
const char *nameData = (const char*)CFDataGetBytePtr(nameTable);
uint32_t nameLen = CFDataGetLength(nameTable);
gfxFontFamily::ReadOtherFamilyNamesForFace(aFamilyName,
nameData, nameLen,
otherFamilyNames,
false);
hasOtherFamilyNames = otherFamilyNames.Length() != 0;
CFRelease(nameTable);
}
}
CFRelease(fontRef);
}
CFRelease(matchingFonts);
// if found other names, insert them in the hash table
if (otherFamilyNames.Length() != 0) {
mOtherFamilyNames.Put(aFamilyName, otherFamilyNames);
mLoadStats.othernames += otherFamilyNames.Length();
}
}
already_AddRefed<FontInfoData>
gfxMacPlatformFontList::CreateFontInfoData()
{
bool loadCmaps = !UsesSystemFallback() ||
gfxPlatform::GetPlatform()->UseCmapsDuringSystemFallback();
RefPtr<MacFontInfo> fi =
new MacFontInfo(true, NeedFullnamePostscriptNames(), loadCmaps);
return fi.forget();
}
gfxFontFamily*
gfxMacPlatformFontList::CreateFontFamily(const nsACString& aName) const
{
return new gfxMacFontFamily(aName, 0.0);
}
void
gfxMacPlatformFontList::ActivateFontsFromDir(nsIFile* aDir)
{
bool isDir;
if (NS_FAILED(aDir->IsDirectory(&isDir)) || !isDir) {
return;
}
nsCOMPtr<nsIDirectoryEnumerator> e;
if (NS_FAILED(aDir->GetDirectoryEntries(getter_AddRefs(e)))) {
return;
}
CFMutableArrayRef urls =
::CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks);
bool hasMore;
while (NS_SUCCEEDED(e->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> entry;
if (NS_FAILED(e->GetNext(getter_AddRefs(entry)))) {
break;
}
nsCOMPtr<nsIFile> file = do_QueryInterface(entry);
if (!file) {
continue;
}
nsCString path;
if (NS_FAILED(file->GetNativePath(path))) {
continue;
}
CFURLRef fontURL =
::CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
(uint8_t*)path.get(),
path.Length(),
false);
if (fontURL) {
::CFArrayAppendValue(urls, fontURL);
::CFRelease(fontURL);
}
}
::CTFontManagerRegisterFontsForURLs(urls,
kCTFontManagerScopeProcess,
nullptr);
::CFRelease(urls);
}
#ifdef MOZ_BUNDLED_FONTS
void
gfxMacPlatformFontList::ActivateBundledFonts()
{
nsCOMPtr<nsIFile> localDir;
if (NS_FAILED(NS_GetSpecialDirectory(NS_GRE_DIR,
getter_AddRefs(localDir)))) {
return;
}
if (NS_FAILED(localDir->Append(NS_LITERAL_STRING("fonts")))) {
return;
}
ActivateFontsFromDir(localDir);
}
#endif
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