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Bug 1056479 p6 - handle font updates. r=jfkthame

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This commit is contained in:
John Daggett 2015-05-13 14:11:26 +09:00
parent e60fbe80e1
commit 6ea78832dc
2 changed files with 59 additions and 7 deletions
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44
gfx/thebes/gfxFcPlatformFontList.cpp
View File

@ -920,8 +920,35 @@ gfxFontConfigFont::GetGlyphRenderingOptions(const TextRunDrawParams* aRunParams)
}
#endif
gfxFcPlatformFontList::gfxFcPlatformFontList()
: mLocalNames(64), mGenericMappings(32), mLastConfig(nullptr)
{
// if the rescan interval is set, start the timer
int rescanInterval = FcConfigGetRescanInterval(nullptr);
if (rescanInterval) {
mLastConfig = FcConfigGetCurrent();
mCheckFontUpdatesTimer = do_CreateInstance("@mozilla.org/timer;1");
if (mCheckFontUpdatesTimer) {
mCheckFontUpdatesTimer->
InitWithFuncCallback(CheckFontUpdates, this,
(rescanInterval + 1) * 1000,
nsITimer::TYPE_REPEATING_SLACK);
} else {
NS_WARNING("Failure to create font updates timer");
}
}
#ifdef MOZ_BUNDLED_FONTS
mBundledFontsInitialized = false;
#endif
}
gfxFcPlatformFontList::~gfxFcPlatformFontList()
{
if (mCheckFontUpdatesTimer) {
mCheckFontUpdatesTimer->Cancel();
mCheckFontUpdatesTimer = nullptr;
}
}
void
@ -1008,6 +1035,8 @@ gfxFcPlatformFontList::AddFontSetFamilies(FcFontSet* aFontSet)
nsresult
gfxFcPlatformFontList::InitFontList()
{
mLastConfig = FcConfigGetCurrent();
// reset font lists
gfxPlatformFontList::InitFontList();
@ -1394,6 +1423,21 @@ gfxFcPlatformFontList::FindGenericFamily(const nsAString& aGeneric,
return genericFamily;
}
/* static */ void
gfxFcPlatformFontList::CheckFontUpdates(nsITimer *aTimer, void *aThis)
{
// check for font updates
FcInitBringUptoDate();
// update fontlist if current config changed
gfxFcPlatformFontList *pfl = static_cast<gfxFcPlatformFontList*>(aThis);
FcConfig* current = FcConfigGetCurrent();
if (current != pfl->GetLastConfig()) {
pfl->UpdateFontList();
pfl->ForceGlobalReflow();
}
}
#ifdef MOZ_BUNDLED_FONTS
void
gfxFcPlatformFontList::ActivateBundledFonts()

22
gfx/thebes/gfxFcPlatformFontList.h
View File

@ -28,6 +28,13 @@ public:
static void Release(FcObjectSet *ptr) { FcObjectSetDestroy(ptr); }
};
template <>
class nsAutoRefTraits<FcConfig> : public nsPointerRefTraits<FcConfig>
{
public:
static void Release(FcConfig *ptr) { FcConfigDestroy(ptr); }
static void AddRef(FcConfig *ptr) { FcConfigReference(ptr); }
};
// Helper classes used for clearning out user font data when cairo font
// face is destroyed. Since multiple faces may use the same data, be
@ -187,13 +194,7 @@ protected:
class gfxFcPlatformFontList : public gfxPlatformFontList {
public:
gfxFcPlatformFontList()
: mLocalNames(64), mGenericMappings(32)
{
#ifdef MOZ_BUNDLED_FONTS
mBundledFontsInitialized = false;
#endif
}
gfxFcPlatformFontList();
// initialize font lists
nsresult InitFontList() override;
@ -223,6 +224,8 @@ public:
bool GetStandardFamilyName(const nsAString& aFontName,
nsAString& aFamilyName) override;
FcConfig* GetLastConfig() const { return mLastConfig; }
static FT_Library GetFTLibrary();
protected:
@ -236,6 +239,8 @@ protected:
gfxFontFamily* FindGenericFamily(const nsAString& aGeneric,
nsIAtom* aLanguage);
static void CheckFontUpdates(nsITimer *aTimer, void *aThis);
#ifdef MOZ_BUNDLED_FONTS
void ActivateBundledFonts();
nsCString mBundledFontsPath;
@ -249,6 +254,9 @@ protected:
// caching generic/lang ==> font family
nsRefPtrHashtable<nsCStringHashKey, gfxFontFamily> mGenericMappings;
nsCOMPtr<nsITimer> mCheckFontUpdatesTimer;
nsCountedRef<FcConfig> mLastConfig;
static FT_Library sCairoFTLibrary;
};