FontFace::FontFace(nsISupports* aParent, FontFaceSet* aFontFaceSet)
: mParent(aParent)
, mLoadedRejection(NS_OK)
, mStatus(FontFaceLoadStatus::Unloaded)
, mSourceType(SourceType(0))
, mSourceBuffer(nullptr)
, mSourceBufferLength(0)
, mFontFaceSet(aFontFaceSet)
, mInFontFaceSet(false)
{
}
FontFace::FontFace(nsISupports* aParent, FontFaceSet* aFontFaceSet)
: mParent(aParent)
, mStatus(FontFaceLoadStatus::Unloaded)
, mSourceType(SourceType(0))
, mSourceBuffer(nullptr)
, mSourceBufferLength(0)
, mFontFaceSet(aFontFaceSet)
, mInFontFaceSet(false)
{
MOZ_COUNT_CTOR(FontFace);
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aParent);
// If the pref is not set, don't create the Promise (which the page wouldn't
// be able to get to anyway) as it causes the window.FontFace constructor
// to be created.
if (global && FontFaceSet::PrefEnabled()) {
ErrorResult rv;
mLoaded = Promise::Create(global, rv);
}
}
inline void
doXercesTranscode(
const SourceType* theSourceString,
XalanDOMString::size_type theSourceStringLength,
bool theSourceStringIsNullTerminated,
XalanVector<TargetType>& theTargetVector,
bool terminate,
char theSubstitutionChar)
{
assert(
theSourceStringIsNullTerminated == false ||
theSourceStringLength == XalanDOMString::length(theSourceString));
const SourceType* theRealSourceString = theSourceString;
XalanVector<SourceType> theCopiedSource(theTargetVector.getMemoryManager());
if (theSourceStringIsNullTerminated == false)
{
theCopiedSource.reserve(theSourceStringLength + 1);
theCopiedSource.assign(
theSourceString,
theSourceString + theSourceStringLength);
theCopiedSource.push_back(static_cast<SourceType>(0));
theRealSourceString = &*theCopiedSource.begin();
}
// Initially, let's guess the the transcoded string will be the same
// length as the source string.
theTargetVector.resize(theSourceStringLength + 1);
assert(theRealSourceString != 0);
bool fSuccess = false;
XALAN_USING_XERCES(XMLString)
fSuccess = XMLString::transcode(
theRealSourceString,
&*theTargetVector.begin(),
theTargetVector.size() - 1,
&theTargetVector.getMemoryManager());
if (fSuccess == false)
{
// Do the "manual" transcoding. But first, clean up from the
// previous phase
theTargetVector.clear();
// See if there are any unrepresentable characters for the
// local code page.
SourceType oneCharArray[2];
oneCharArray[1] = SourceType(0);
TargetType theOneTranslatedWbChar[theOneTranslatedWbCharLen];
for (XalanDOMString::size_type i = 0; i < theSourceStringLength; ++i)
{
oneCharArray[0] = theRealSourceString[i];
theOneTranslatedWbChar[0] = TargetType(0);
fSuccess = XMLString::transcode(
oneCharArray,
theOneTranslatedWbChar,
theOneTranslatedWbCharLen - 1,
&theTargetVector.getMemoryManager());
if (fSuccess == false)
{
theTargetVector.push_back(theSubstitutionChar);
}
else
{
XalanDOMString::size_type theRealCharLength =
XalanDOMString::length(theOneTranslatedWbChar);
// When we transcode the character '\0', that looks like "\0\0",
// XalanDOMString::length returns a size of 0. In this case, the
// real size should be 1
if (theRealCharLength == 0)
{
theRealCharLength = 1;
}
// append the translated set of characters
theTargetVector.insert(
theTargetVector.end(),
theOneTranslatedWbChar,
theOneTranslatedWbChar + theRealCharLength);
}
}
}
while(theTargetVector.back() == static_cast<TargetType>(0))
{
theTargetVector.pop_back();
}
if (terminate == true)
{
theTargetVector.push_back(static_cast<TargetType>(0));
}
}