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/* -*- Mode: C++; tab-width: 20; 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/. */
#ifndef GFX_FT2FONTLIST_H
#define GFX_FT2FONTLIST_H
#include "mozilla/MemoryReporting.h"
#include "gfxPlatformFontList.h"
namespace mozilla {
namespace dom {
class FontListEntry;
};
};
using mozilla::dom::FontListEntry;
class FontNameCache;
typedef struct FT_FaceRec_* FT_Face;
class nsZipArchive;
class FT2FontEntry : public gfxFontEntry
{
public:
FT2FontEntry(const nsAString& aFaceName) :
gfxFontEntry(aFaceName),
mFTFace(nullptr),
mFontFace(nullptr),
mFTFontIndex(0)
{
}
~FT2FontEntry();
const nsString& GetName() const {
return Name();
}
// create a font entry for a downloaded font
static FT2FontEntry*
CreateFontEntry(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle,
const uint8_t* aFontData,
uint32_t aLength);
// create a font entry representing an installed font, identified by
// a FontListEntry; the freetype and cairo faces will not be instantiated
// until actually needed
static FT2FontEntry*
CreateFontEntry(const FontListEntry& aFLE);
// Create a font entry for a given freetype face; if it is an installed font,
// also record the filename and index.
// aFontData (if non-nullptr) is NS_Malloc'ed data that aFace depends on,
// to be freed after the face is destroyed
static FT2FontEntry*
CreateFontEntry(FT_Face aFace,
const char *aFilename, uint8_t aIndex,
const nsAString& aName,
const uint8_t* aFontData = nullptr);
virtual gfxFont *CreateFontInstance(const gfxFontStyle *aFontStyle,
bool aNeedsBold) override;
// Create (if necessary) and return the cairo_font_face for this font.
// This may fail and return null, so caller must be prepared to handle this.
cairo_font_face_t *CairoFontFace();
// Create a cairo_scaled_font for this face, with the given style.
// This may fail and return null, so caller must be prepared to handle this.
cairo_scaled_font_t *CreateScaledFont(const gfxFontStyle *aStyle);
nsresult ReadCMAP(FontInfoData *aFontInfoData = nullptr) override;
virtual hb_blob_t* GetFontTable(uint32_t aTableTag) override;
virtual nsresult CopyFontTable(uint32_t aTableTag,
nsTArray<uint8_t>& aBuffer) override;
// Check for various kinds of brokenness, and set flags on the entry
// accordingly so that we avoid using bad font tables
void CheckForBrokenFont(gfxFontFamily *aFamily);
virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const override;
virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const override;
FT_Face mFTFace;
cairo_font_face_t *mFontFace;
nsCString mFilename;
uint8_t mFTFontIndex;
};
class FT2FontFamily : public gfxFontFamily
{
public:
// Flags to indicate whether a font should be "visible" in the global
// font list (available for use in font-family), or "hidden" (available
// only to support a matching data: URI used in @font-face).
typedef enum {
kVisible,
kHidden
} Visibility;
FT2FontFamily(const nsAString& aName) :
gfxFontFamily(aName) { }
// Append this family's faces to the IPC fontlist
void AddFacesToFontList(InfallibleTArray<FontListEntry>* aFontList,
Visibility aVisibility);
};
class gfxFT2FontList : public gfxPlatformFontList
{
public:
gfxFT2FontList();
virtual ~gfxFT2FontList();
virtual gfxFontEntry* LookupLocalFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle);
virtual gfxFontEntry* MakePlatformFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle,
const uint8_t* aFontData,
uint32_t aLength);
void GetSystemFontList(InfallibleTArray<FontListEntry>* retValue);
static gfxFT2FontList* PlatformFontList() {
return static_cast<gfxFT2FontList*>(gfxPlatformFontList::PlatformFontList());
}
virtual void GetFontFamilyList(nsTArray<RefPtr<gfxFontFamily> >& aFamilyArray);
void WillShutdown();
protected:
typedef enum {
kUnknown,
kStandard
} StandardFile;
// initialize font lists
virtual nsresult InitFontListForPlatform() override;
void AppendFaceFromFontListEntry(const FontListEntry& aFLE,
StandardFile aStdFile);
void AppendFacesFromFontFile(const nsCString& aFileName,
FontNameCache *aCache,
StandardFile aStdFile,
FT2FontFamily::Visibility aVisibility);
void AppendFacesFromOmnijarEntry(nsZipArchive *aReader,
const nsCString& aEntryName,
FontNameCache *aCache,
bool aJarChanged);
// the defaults here are suitable for reading bundled fonts from omnijar
void AppendFacesFromCachedFaceList(const nsCString& aFileName,
const nsCString& aFaceList,
StandardFile aStdFile = kStandard,
FT2FontFamily::Visibility aVisibility =
FT2FontFamily::kVisible);
void AddFaceToList(const nsCString& aEntryName, uint32_t aIndex,
StandardFile aStdFile,
FT2FontFamily::Visibility aVisibility,
FT_Face aFace, nsCString& aFaceList);
void FindFonts();
void FindFontsInOmnijar(FontNameCache *aCache);
void FindFontsInDir(const nsCString& aDir, FontNameCache* aFNC,
FT2FontFamily::Visibility aVisibility);
virtual gfxFontFamily*
GetDefaultFontForPlatform(const gfxFontStyle* aStyle) override;
nsTHashtable<nsStringHashKey> mSkipSpaceLookupCheckFamilies;
private:
FontFamilyTable mHiddenFontFamilies;
mozilla::UniquePtr<FontNameCache> mFontNameCache;
int64_t mJarModifiedTime;
nsCOMPtr<nsIObserver> mObserver;
};
#endif /* GFX_FT2FONTLIST_H */
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