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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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/. */
#ifndef gfxMacPlatformFontList_H_
#define gfxMacPlatformFontList_H_
#include <CoreFoundation/CoreFoundation.h>
#include "mozilla/FontPropertyTypes.h"
#include "mozilla/MemoryReporting.h"
#include "nsRefPtrHashtable.h"
#include "gfxPlatformFontList.h"
#include "gfxPlatform.h"
#include "gfxPlatformMac.h"
#include "nsUnicharUtils.h"
#include "nsTArray.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/gfx/UnscaledFontMac.h"
class gfxMacPlatformFontList;
// a single member of a font family (i.e. a single face, such as Times Italic)
class MacOSFontEntry final : public gfxFontEntry {
public:
friend class gfxMacPlatformFontList;
friend class gfxMacFont;
MacOSFontEntry(const nsACString& aPostscriptName, WeightRange aWeight,
bool aIsStandardFace = false, double aSizeHint = 0.0);
// for use with data fonts
MacOSFontEntry(const nsACString& aPostscriptName, CGFontRef aFontRef,
WeightRange aWeight, StretchRange aStretch,
SlantStyleRange aStyle, bool aIsDataUserFont, bool aIsLocal);
virtual ~MacOSFontEntry() { ::CGFontRelease(mFontRef); }
gfxFontEntry* Clone() const override;
// Return a non-owning reference to our CGFont; caller must not release it.
// This will cause the fontEntry to create & retain a CGFont for the life
// of the entry.
// Note that in the case of a broken font, this could return null.
CGFontRef GetFontRef();
// Return a new reference to our CGFont. Caller is responsible to release
// this reference.
// (If the entry has a cached CGFont, this just bumps its refcount and
// returns it; if not, the instance returned will be owned solely by the
// caller.)
// Note that in the case of a broken font, this could return null.
CGFontRef CreateOrCopyFontRef();
// override gfxFontEntry table access function to bypass table cache,
// use CGFontRef API to get direct access to system font data
hb_blob_t* GetFontTable(uint32_t aTag) override;
void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const override;
nsresult ReadCMAP(FontInfoData* aFontInfoData = nullptr) override;
bool RequiresAATLayout() const { return mRequiresAAT; }
bool HasVariations() override;
void GetVariationAxes(
nsTArray<gfxFontVariationAxis>& aVariationAxes) override;
void GetVariationInstances(
nsTArray<gfxFontVariationInstance>& aInstances) override;
bool IsCFF();
bool SupportsOpenTypeFeature(Script aScript, uint32_t aFeatureTag) override;
protected:
gfxFont* CreateFontInstance(const gfxFontStyle* aFontStyle) override;
bool HasFontTable(uint32_t aTableTag) override;
static void DestroyBlobFunc(void* aUserData);
CGFontRef
mFontRef; // owning reference to the CGFont, released on destruction
double mSizeHint;
bool mFontRefInitialized;
bool mRequiresAAT;
bool mIsCFF;
bool mIsCFFInitialized;
bool mHasVariations;
bool mHasVariationsInitialized;
bool mHasAATSmallCaps;
bool mHasAATSmallCapsInitialized;
// To work around Core Text's mishandling of the default value for 'opsz',
// we need to record whether the font has an a optical size axis, what its
// range and default values are, and a usable close-to-default alternative.
// (See bug 1457417 for details.)
// These fields are used by gfxMacFont, but stored in the font entry so
// that only a single font instance needs to inspect the available
// variations.
gfxFontVariationAxis mOpszAxis;
float mAdjustedDefaultOpsz;
nsTHashtable<nsUint32HashKey> mAvailableTables;
mozilla::ThreadSafeWeakPtr<mozilla::gfx::UnscaledFontMac> mUnscaledFont;
};
class gfxMacPlatformFontList final : public gfxPlatformFontList {
using FontFamilyListEntry = mozilla::dom::SystemFontListEntry;
public:
static gfxMacPlatformFontList* PlatformFontList() {
return static_cast<gfxMacPlatformFontList*>(
gfxPlatformFontList::PlatformFontList());
}
gfxFontFamily* CreateFontFamily(const nsACString& aName,
FontVisibility aVisibility) const override;
static int32_t AppleWeightToCSSWeight(int32_t aAppleWeight);
gfxFontEntry* LookupLocalFont(const nsACString& aFontName,
WeightRange aWeightForEntry,
StretchRange aStretchForEntry,
SlantStyleRange aStyleForEntry) override;
gfxFontEntry* MakePlatformFont(const nsACString& aFontName,
WeightRange aWeightForEntry,
StretchRange aStretchForEntry,
SlantStyleRange aStyleForEntry,
const uint8_t* aFontData,
uint32_t aLength) override;
bool FindAndAddFamilies(mozilla::StyleGenericFontFamily aGeneric,
const nsACString& aFamily,
nsTArray<FamilyAndGeneric>* aOutput,
FindFamiliesFlags aFlags,
gfxFontStyle* aStyle = nullptr,
nsAtom* aLanguage = nullptr,
gfxFloat aDevToCssSize = 1.0) override;
// lookup the system font for a particular system font type and set
// the name and style characteristics
void LookupSystemFont(mozilla::LookAndFeel::FontID aSystemFontID,
nsACString& aSystemFontName, gfxFontStyle& aFontStyle);
// Values for the entryType field in FontFamilyListEntry records passed
// from chrome to content process.
enum FontFamilyEntryType {
kStandardFontFamily = 0, // a standard installed font family
kTextSizeSystemFontFamily = 1, // name of 'system' font at text sizes
kDisplaySizeSystemFontFamily = 2 // 'system' font at display sizes
};
void ReadSystemFontList(mozilla::dom::SystemFontList*);
protected:
FontFamily GetDefaultFontForPlatform(const gfxFontStyle* aStyle,
nsAtom* aLanguage = nullptr) override;
private:
friend class gfxPlatformMac;
gfxMacPlatformFontList();
virtual ~gfxMacPlatformFontList();
// initialize font lists
nsresult InitFontListForPlatform() override;
void InitSharedFontListForPlatform() override;
// handle commonly used fonts for which the name table should be loaded at
// startup
void PreloadNamesList();
// special case font faces treated as font families (set via prefs)
void InitSingleFaceList();
void InitAliasesForSingleFaceList();
// initialize system fonts
void InitSystemFontNames();
// helper function to lookup in both hidden system fonts and normal fonts
gfxFontFamily* FindSystemFontFamily(const nsACString& aFamily);
FontVisibility GetVisibilityForFamily(const nsACString& aName) const;
static void RegisteredFontsChangedNotificationCallback(
CFNotificationCenterRef center, void* observer, CFStringRef name,
const void* object, CFDictionaryRef userInfo);
// attempt to use platform-specific fallback for the given character
// return null if no usable result found
gfxFontEntry* PlatformGlobalFontFallback(const uint32_t aCh,
Script aRunScript,
const gfxFontStyle* aMatchStyle,
FontFamily& aMatchedFamily) override;
bool UsesSystemFallback() override { return true; }
already_AddRefed<FontInfoData> CreateFontInfoData() override;
// Add the specified family to mFontFamilies.
// Ideally we'd use NSString* instead of CFStringRef here, but this header
// file is included in .cpp files, so we can't use objective C classes here.
// But CFStringRef and NSString* are the same thing anyway (they're
// toll-free bridged).
void AddFamily(CFStringRef aFamily);
void AddFamily(const nsACString& aFamilyName, FontVisibility aVisibility);
gfxFontEntry* CreateFontEntry(
mozilla::fontlist::Face* aFace,
const mozilla::fontlist::Family* aFamily) override;
void GetFacesInitDataForFamily(
const mozilla::fontlist::Family* aFamily,
nsTArray<mozilla::fontlist::Face::InitData>& aFaces,
bool aLoadCmaps) const override;
void ReadFaceNamesForFamily(mozilla::fontlist::Family* aFamily,
bool aNeedFullnamePostscriptNames) override;
enum { kATSGenerationInitial = -1 };
// default font for use with system-wide font fallback
CTFontRef mDefaultFont;
// font families that -apple-system maps to
// Pre-10.11 this was always a single font family, such as Lucida Grande
// or Helvetica Neue. For OSX 10.11, Apple uses pair of families
// for the UI, one for text sizes and another for display sizes
bool mUseSizeSensitiveSystemFont;
nsCString mSystemTextFontFamilyName;
nsCString mSystemDisplayFontFamilyName; // only used on OSX 10.11
nsTArray<nsCString> mSingleFaceFonts;
nsTArray<nsCString> mPreloadFonts;
};
#endif /* gfxMacPlatformFontList_H_ */