void
LayerManager::StopFrameTimeRecording(uint32_t aStartIndex,
nsTArray<float>& aFrameIntervals,
nsTArray<float>& aPaintTimes)
{
uint32_t bufferSize = mRecording.mIntervals.Length();
uint32_t length = mRecording.mNextIndex - aStartIndex;
if (mRecording.mIsPaused || length > bufferSize || aStartIndex < mRecording.mCurrentRunStartIndex) {
// aStartIndex is too old. Also if aStartIndex was issued before mRecordingNextIndex overflowed (uint32_t)
// and stopped after the overflow (would happen once every 828 days of constant 60fps).
length = 0;
}
// Set length in advance to avoid possibly repeated reallocations (and OOM checks).
if (!length || !aFrameIntervals.SetLength(length) || !aPaintTimes.SetLength(length)) {
aFrameIntervals.Clear();
aPaintTimes.Clear();
return; // empty recording or OOM, return empty arrays.
}
uint32_t cyclicPos = aStartIndex % bufferSize;
for (uint32_t i = 0; i < length; i++, cyclicPos++) {
if (cyclicPos == bufferSize) {
cyclicPos = 0;
}
aFrameIntervals[i] = mRecording.mIntervals[cyclicPos];
aPaintTimes[i] = mRecording.mPaints[cyclicPos];
}
}
bool DWriteFontFileStream::Initialize(uint8_t* aData, uint32_t aSize) {
if (!mData.SetLength(aSize, fallible)) {
return false;
}
memcpy(mData.Elements(), aData, aSize);
return true;
}
bool
ReadIntoArray(nsIFile* aFile,
nsTArray<uint8_t>& aOutDst,
size_t aMaxLength)
{
if (!FileExists(aFile)) {
return false;
}
PRFileDesc* fd = nullptr;
nsresult rv = aFile->OpenNSPRFileDesc(PR_RDONLY, 0, &fd);
if (NS_FAILED(rv)) {
return false;
}
int32_t length = PR_Seek(fd, 0, PR_SEEK_END);
PR_Seek(fd, 0, PR_SEEK_SET);
if (length < 0 || (size_t)length > aMaxLength) {
NS_WARNING("EME file is longer than maximum allowed length");
PR_Close(fd);
return false;
}
aOutDst.SetLength(length);
int32_t bytesRead = PR_Read(fd, aOutDst.Elements(), length);
PR_Close(fd);
return (bytesRead == length);
}
// add a continuation, return false on error if segment already has been seen
bool addContinuation(nsTArray<Continuation>& aArray, uint32_t aIndex,
const char *aValue, uint32_t aLength,
bool aNeedsPercentDecoding, bool aWasQuotedString)
{
if (aIndex < aArray.Length() && aArray[aIndex].value) {
NS_WARNING("duplicate RC2231 continuation segment #\n");
return false;
}
if (aIndex > MAX_CONTINUATIONS) {
NS_WARNING("RC2231 continuation segment # exceeds limit\n");
return false;
}
if (aNeedsPercentDecoding && aWasQuotedString) {
NS_WARNING("RC2231 continuation segment can't use percent encoding and quoted string form at the same time\n");
return false;
}
Continuation cont(aValue, aLength, aNeedsPercentDecoding, aWasQuotedString);
if (aArray.Length() <= aIndex) {
aArray.SetLength(aIndex + 1);
}
aArray[aIndex] = cont;
return true;
}
// Getter for weighted regions: { top, bottom, left, right, weight }
nsresult
nsDOMCameraControl::Get(uint32_t aKey, nsTArray<CameraRegion>& aValue)
{
nsTArray<ICameraControl::Region> regionArray;
nsresult rv = mCameraControl->Get(aKey, regionArray);
NS_ENSURE_SUCCESS(rv, rv);
uint32_t length = regionArray.Length();
DOM_CAMERA_LOGI("%s:%d : got %d regions\n", __func__, __LINE__, length);
aValue.SetLength(length);
for (uint32_t i = 0; i < length; ++i) {
ICameraControl::Region& r = regionArray[i];
CameraRegion& v = aValue[i];
v.mTop = r.top;
v.mLeft = r.left;
v.mBottom = r.bottom;
v.mRight = r.right;
v.mWeight = r.weight;
DOM_CAMERA_LOGI("region %d: top=%d, left=%d, bottom=%d, right=%d, weight=%u\n",
i,
v.mTop,
v.mLeft,
v.mBottom,
v.mRight,
v.mWeight
);
}
return NS_OK;
}
void
nsSVGTextContainerFrame::CopyPositionList(nsTArray<float> *parentList,
SVGUserUnitList *selfList,
nsTArray<float> &dstList,
uint32_t aOffset)
{
dstList.Clear();
uint32_t strLength = GetNumberOfChars();
uint32_t parentCount = 0;
if (parentList && parentList->Length() > aOffset) {
parentCount = NS_MIN(parentList->Length() - aOffset, strLength);
}
uint32_t selfCount = NS_MIN(selfList->Length(), strLength);
uint32_t count = NS_MAX(parentCount, selfCount);
if (!dstList.SetLength(count))
return;
for (uint32_t i = 0; i < selfCount; i++) {
dstList[i] = (*selfList)[i];
}
for (uint32_t i = selfCount; i < parentCount; i++) {
dstList[i] = (*parentList)[aOffset + i];
}
}
void
nsSVGTextContainerFrame::CopyRotateList(nsTArray<float> *parentList,
const SVGNumberList *selfList,
nsTArray<float> &dstList,
uint32_t aOffset)
{
dstList.Clear();
uint32_t strLength = GetNumberOfChars();
uint32_t parentCount = 0;
if (parentList && parentList->Length() > aOffset) {
parentCount = NS_MIN(parentList->Length() - aOffset, strLength);
}
uint32_t selfCount = NS_MIN(selfList ? selfList->Length() : 0, strLength);
uint32_t count = NS_MAX(parentCount, selfCount);
if (count > 0) {
if (!dstList.SetLength(count))
return;
for (uint32_t i = 0; i < selfCount; i++) {
dstList[i] = (*selfList)[i];
}
for (uint32_t i = selfCount; i < parentCount; i++) {
dstList[i] = (*parentList)[aOffset + i];
}
} else if (parentList && !parentList->IsEmpty()) {
// rotate is applied to extra characters too
dstList.AppendElement((*parentList)[parentList->Length() - 1]);
}
}
void detail::DoConversion(const nsTArray<nsString> &aUTF16Array,
nsTArray<nsCString> &aUTF8Array) {
uint32_t count = aUTF16Array.Length();
aUTF8Array.SetLength(count);
for (uint32_t i = 0; i < count; ++i)
CopyUTF16toUTF8(aUTF16Array[i], aUTF8Array[i]);
}
nsresult
GDIFontEntry::CopyFontTable(uint32_t aTableTag, nsTArray<uint8_t>& aBuffer)
{
if (!IsTrueType()) {
return NS_ERROR_FAILURE;
}
AutoDC dc;
AutoSelectFont font(dc.GetDC(), &mLogFont);
if (font.IsValid()) {
uint32_t tableSize =
::GetFontData(dc.GetDC(),
NativeEndian::swapToBigEndian(aTableTag),
0, nullptr, 0);
if (tableSize != GDI_ERROR) {
if (aBuffer.SetLength(tableSize, fallible)) {
::GetFontData(dc.GetDC(),
NativeEndian::swapToBigEndian(aTableTag), 0,
aBuffer.Elements(), tableSize);
return NS_OK;
}
return NS_ERROR_OUT_OF_MEMORY;
}
}
return NS_ERROR_FAILURE;
}
GMPErr Read(const nsCString& aRecordName,
nsTArray<uint8_t>& aOutBytes) override
{
if (!IsOpen(aRecordName)) {
return GMPClosedErr;
}
Record* record = nullptr;
mRecords.Get(aRecordName, &record);
MOZ_ASSERT(record && !!record->mFileDesc); // IsOpen() guarantees this.
// Our error strategy is to report records with invalid contents as
// containing 0 bytes. Zero length records are considered "deleted" by
// the GMPStorage API.
aOutBytes.SetLength(0);
int32_t recordLength = 0;
nsCString recordName;
nsresult err = ReadRecordMetadata(record->mFileDesc,
recordLength,
recordName);
if (NS_FAILED(err) || recordLength == 0) {
// We failed to read the record metadata. Or the record is 0 length.
// Treat damaged records as empty.
// ReadRecordMetadata() could fail if the GMP opened a new record and
// tried to read it before anything was written to it..
return GMPNoErr;
}
if (!aRecordName.Equals(recordName)) {
NS_WARNING("Record file contains some other record's contents!");
return GMPRecordCorrupted;
}
// After calling ReadRecordMetadata, we should be ready to read the
// record data.
if (PR_Available(record->mFileDesc) != recordLength) {
NS_WARNING("Record file length mismatch!");
return GMPRecordCorrupted;
}
aOutBytes.SetLength(recordLength);
int32_t bytesRead = PR_Read(record->mFileDesc, aOutBytes.Elements(), recordLength);
return (bytesRead == recordLength) ? GMPNoErr : GMPRecordCorrupted;
}
void ExtractDisplayAddresses(const nsCOMArray<msgIAddressObject> &aHeader,
nsTArray<nsString> &displayAddrs) {
uint32_t count = aHeader.Length();
displayAddrs.SetLength(count);
for (uint32_t i = 0; i < count; i++) aHeader[i]->ToString(displayAddrs[i]);
if (count == 1 && displayAddrs[0].IsEmpty()) displayAddrs.Clear();
}
/* static */ bool
PushUtil::CopyArrayBufferToArray(const ArrayBuffer& aBuffer,
nsTArray<uint8_t>& aArray)
{
aBuffer.ComputeLengthAndData();
return aArray.SetLength(aBuffer.Length(), fallible) &&
aArray.ReplaceElementsAt(0, aBuffer.Length(), aBuffer.Data(),
aBuffer.Length(), fallible);
}
void
AudioNodeStream::UpMixDownMixChunk(const AudioChunk* aChunk,
uint32_t aOutputChannelCount,
nsTArray<const void*>& aOutputChannels,
nsTArray<float>& aDownmixBuffer)
{
static const float silenceChannel[WEBAUDIO_BLOCK_SIZE] = {0.f};
aOutputChannels.AppendElements(aChunk->mChannelData);
if (aOutputChannels.Length() < aOutputChannelCount) {
if (mChannelInterpretation == ChannelInterpretation::Speakers) {
AudioChannelsUpMix(&aOutputChannels, aOutputChannelCount, nullptr);
NS_ASSERTION(aOutputChannelCount == aOutputChannels.Length(),
"We called GetAudioChannelsSuperset to avoid this");
} else {
// Fill up the remaining aOutputChannels by zeros
for (uint32_t j = aOutputChannels.Length(); j < aOutputChannelCount; ++j) {
aOutputChannels.AppendElement(silenceChannel);
}
}
} else if (aOutputChannels.Length() > aOutputChannelCount) {
if (mChannelInterpretation == ChannelInterpretation::Speakers) {
nsAutoTArray<float*,GUESS_AUDIO_CHANNELS> outputChannels;
outputChannels.SetLength(aOutputChannelCount);
aDownmixBuffer.SetLength(aOutputChannelCount * WEBAUDIO_BLOCK_SIZE);
for (uint32_t j = 0; j < aOutputChannelCount; ++j) {
outputChannels[j] = &aDownmixBuffer[j * WEBAUDIO_BLOCK_SIZE];
}
AudioChannelsDownMix(aOutputChannels, outputChannels.Elements(),
aOutputChannelCount, WEBAUDIO_BLOCK_SIZE);
aOutputChannels.SetLength(aOutputChannelCount);
for (uint32_t j = 0; j < aOutputChannels.Length(); ++j) {
aOutputChannels[j] = outputChannels[j];
}
} else {
// Drop the remaining aOutputChannels
aOutputChannels.RemoveElementsAt(aOutputChannelCount,
aOutputChannels.Length() - aOutputChannelCount);
}
}
}
void ExtractAllAddresses(const nsCOMArray<msgIAddressObject> &aHeader,
nsTArray<nsString> &names,
nsTArray<nsString> &emails) {
uint32_t count = aHeader.Length();
// Prefill arrays before we start
names.SetLength(count);
emails.SetLength(count);
for (uint32_t i = 0; i < count; i++) {
aHeader[i]->GetName(names[i]);
aHeader[i]->GetEmail(emails[i]);
}
if (count == 1 && names[0].IsEmpty() && emails[0].IsEmpty()) {
names.Clear();
emails.Clear();
}
}
bool
GetPreparsedData(HANDLE handle, nsTArray<uint8_t>& data)
{
UINT size;
if (GetRawInputDeviceInfo(handle, RIDI_PREPARSEDDATA, nullptr, &size) == kRawInputError) {
return false;
}
data.SetLength(size);
return GetRawInputDeviceInfo(handle, RIDI_PREPARSEDDATA,
data.Elements(), &size) > 0;
}
void
nsGridContainerFrame::CalculateTrackSizes(const LogicalSize& aPercentageBasis,
const nsStylePosition* aStyle,
nsTArray<TrackSize>& aColSizes,
nsTArray<TrackSize>& aRowSizes)
{
aColSizes.SetLength(mGridColEnd - 1);
aRowSizes.SetLength(mGridRowEnd - 1);
WritingMode wm = GetWritingMode();
InitializeTrackSizes(aPercentageBasis.ISize(wm),
aStyle->mGridTemplateColumns.mMinTrackSizingFunctions,
aStyle->mGridTemplateColumns.mMaxTrackSizingFunctions,
aStyle->mGridAutoColumnsMin,
aStyle->mGridAutoColumnsMax,
aColSizes);
InitializeTrackSizes(aPercentageBasis.BSize(wm),
aStyle->mGridTemplateRows.mMinTrackSizingFunctions,
aStyle->mGridTemplateRows.mMaxTrackSizingFunctions,
aStyle->mGridAutoRowsMin,
aStyle->mGridAutoRowsMax,
aRowSizes);
}
void
nsProfileCollector::BookmarkCounter::CountChildren(PRInt64 root, PRBool deep,
nsTArray<PRInt32> &count)
{
count.SetLength(kLastBookmarkType);
for (PRInt32 i = 0; i < kLastBookmarkType; ++i) {
count[i] = 0;
}
nsCOMPtr<nsINavHistoryService> histSvc =
do_GetService(NS_NAVHISTORYSERVICE_CONTRACTID);
if (!histSvc) {
return;
}
nsCOMPtr<nsINavHistoryQuery> query;
histSvc->GetNewQuery(getter_AddRefs(query));
if (!query) {
return;
}
query->SetFolders(&root, 1);
query->SetOnlyBookmarked(PR_TRUE);
nsCOMPtr<nsINavHistoryQueryOptions> options;
histSvc->GetNewQueryOptions(getter_AddRefs(options));
if (!options) {
return;
}
// setting option breaks bookmark count
// const PRUint16 groupMode = nsINavHistoryQueryOptions::GROUP_BY_FOLDER;
// options->SetGroupingMode(&groupMode, 1);
nsCOMPtr<nsINavHistoryResult> result;
histSvc->ExecuteQuery(query, options, getter_AddRefs(result));
if (!result) {
return;
}
nsCOMPtr<nsINavHistoryContainerResultNode> rootNode;
result->GetRoot(getter_AddRefs(rootNode));
if (!rootNode) {
return;
}
CountRecursive(rootNode, deep, count);
}
/* static */ bool
PushUtil::CopyBufferSourceToArray(
const OwningArrayBufferViewOrArrayBuffer& aSource, nsTArray<uint8_t>& aArray)
{
if (aSource.IsArrayBuffer()) {
return CopyArrayBufferToArray(aSource.GetAsArrayBuffer(), aArray);
}
if (aSource.IsArrayBufferView()) {
const ArrayBufferView& view = aSource.GetAsArrayBufferView();
view.ComputeLengthAndData();
return aArray.SetLength(view.Length(), fallible) &&
aArray.ReplaceElementsAt(0, view.Length(), view.Data(),
view.Length(), fallible);
}
MOZ_CRASH("Uninitialized union: expected buffer or view");
}
nsresult
ICameraControl::GetListOfCameras(nsTArray<nsString>& aList)
{
int32_t count = android::Camera::getNumberOfCameras();
DOM_CAMERA_LOGI("getListOfCameras : getNumberOfCameras() returned %d\n", count);
if (count <= 0) {
aList.Clear();
return NS_OK;
}
// Allocate 2 extra slots to reserve space for 'front' and 'back' cameras
// at the front of the array--we will collapse any empty slots below.
aList.SetLength(2);
uint32_t extraIdx = 2;
bool gotFront = false;
bool gotBack = false;
while (count--) {
nsCString cameraName;
nsresult result = GetCameraName(count, cameraName);
if (result != NS_OK) {
continue;
}
// The first camera we find named 'back' gets slot 0; and the first
// we find named 'front' gets slot 1. All others appear after these.
if (cameraName.EqualsLiteral("back")) {
CopyUTF8toUTF16(cameraName, aList[0]);
gotBack = true;
} else if (cameraName.EqualsLiteral("front")) {
CopyUTF8toUTF16(cameraName, aList[1]);
gotFront = true;
} else {
CopyUTF8toUTF16(cameraName, *aList.InsertElementAt(extraIdx));
extraIdx++;
}
}
if (!gotFront) {
aList.RemoveElementAt(1);
}
if (!gotBack) {
aList.RemoveElementAt(0);
}
return NS_OK;
}
static void
BlacklistEntriesToDriverInfo(nsTArray<nsCString>& aBlacklistEntries,
nsTArray<GfxDriverInfo>& aDriverInfo)
{
aDriverInfo.Clear();
aDriverInfo.SetLength(aBlacklistEntries.Length());
for (uint32_t i = 0; i < aBlacklistEntries.Length(); ++i) {
nsCString blacklistEntry = aBlacklistEntries[i];
GfxDriverInfo di;
if (BlacklistEntryToDriverInfo(blacklistEntry, di)) {
aDriverInfo[i] = di;
// Prevent di falling out of scope from destroying the devices.
di.mDeleteDevices = false;
}
}
}
void
InternalHeaders::GetAll(const nsACString& aName, nsTArray<nsCString>& aResults,
ErrorResult& aRv) const
{
nsAutoCString lowerName;
ToLowerCase(aName, lowerName);
if (IsInvalidName(lowerName, aRv)) {
return;
}
aResults.SetLength(0);
for (uint32_t i = 0; i < mList.Length(); ++i) {
if (lowerName == mList[i].mName) {
aResults.AppendElement(mList[i].mValue);
}
}
}
static void ReadFile(const char* aPath, nsTArray<uint8_t>& aBuffer) {
FILE* f = fopen(aPath, "rb");
ASSERT_NE(f, (FILE*)nullptr);
int r = fseek(f, 0, SEEK_END);
ASSERT_EQ(r, 0);
long size = ftell(f);
ASSERT_NE(size, -1);
aBuffer.SetLength(size);
r = fseek(f, 0, SEEK_SET);
ASSERT_EQ(r, 0);
size_t got = fread(aBuffer.Elements(), 1, size, f);
ASSERT_EQ(got, size_t(size));
r = fclose(f);
ASSERT_EQ(r, 0);
}
static void
BlacklistEntriesToDriverInfo(nsIDOMHTMLCollection* aBlacklistEntries,
nsTArray<GfxDriverInfo>& aDriverInfo)
{
uint32_t length;
if (NS_FAILED(aBlacklistEntries->GetLength(&length)))
return;
aDriverInfo.Clear();
aDriverInfo.SetLength(length);
for (uint32_t i = 0; i < length; ++i) {
nsCOMPtr<nsIDOMNode> blacklistEntry;
if (NS_SUCCEEDED(aBlacklistEntries->Item(i,
getter_AddRefs(blacklistEntry))) &&
blacklistEntry) {
GfxDriverInfo di;
if (BlacklistEntryToDriverInfo(blacklistEntry, di)) {
aDriverInfo[i] = di;
// Prevent di falling out of scope from destroying the devices.
di.mDeleteDevices = false;
}
}
}
}
bool
nsCaseTransformTextRunFactory::TransformString(
const nsAString& aString,
nsString& aConvertedString,
bool aAllUppercase,
const nsIAtom* aLanguage,
nsTArray<bool>& aCharsToMergeArray,
nsTArray<bool>& aDeletedCharsArray,
nsTransformedTextRun* aTextRun,
nsTArray<uint8_t>* aCanBreakBeforeArray,
nsTArray<nsStyleContext*>* aStyleArray)
{
NS_PRECONDITION(!aTextRun || (aCanBreakBeforeArray && aStyleArray),
"either none or all three optional parameters required");
uint32_t length = aString.Length();
const char16_t* str = aString.BeginReading();
bool mergeNeeded = false;
bool capitalizeDutchIJ = false;
bool prevIsLetter = false;
bool ntPrefix = false; // true immediately after a word-initial 'n' or 't'
// when doing Irish lowercasing
uint32_t sigmaIndex = uint32_t(-1);
nsIUGenCategory::nsUGenCategory cat;
uint8_t style = aAllUppercase ? NS_STYLE_TEXT_TRANSFORM_UPPERCASE : 0;
const nsIAtom* lang = aLanguage;
LanguageSpecificCasingBehavior languageSpecificCasing = GetCasingFor(lang);
mozilla::GreekCasing::State greekState;
mozilla::IrishCasing::State irishState;
uint32_t irishMark = uint32_t(-1); // location of possible prefix letter(s)
for (uint32_t i = 0; i < length; ++i) {
uint32_t ch = str[i];
nsStyleContext* styleContext;
if (aTextRun) {
styleContext = aTextRun->mStyles[i];
style = aAllUppercase ? NS_STYLE_TEXT_TRANSFORM_UPPERCASE :
styleContext->StyleText()->mTextTransform;
if (lang != styleContext->StyleFont()->mLanguage) {
lang = styleContext->StyleFont()->mLanguage;
languageSpecificCasing = GetCasingFor(lang);
greekState.Reset();
irishState.Reset();
irishMark = uint32_t(-1);
}
}
int extraChars = 0;
const mozilla::unicode::MultiCharMapping *mcm;
bool inhibitBreakBefore = false; // have we just deleted preceding hyphen?
if (NS_IS_HIGH_SURROGATE(ch) && i < length - 1 &&
NS_IS_LOW_SURROGATE(str[i + 1])) {
ch = SURROGATE_TO_UCS4(ch, str[i + 1]);
}
switch (style) {
case NS_STYLE_TEXT_TRANSFORM_LOWERCASE:
if (languageSpecificCasing == eLSCB_Turkish) {
if (ch == 'I') {
ch = LATIN_SMALL_LETTER_DOTLESS_I;
prevIsLetter = true;
sigmaIndex = uint32_t(-1);
break;
}
if (ch == LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE) {
ch = 'i';
prevIsLetter = true;
sigmaIndex = uint32_t(-1);
break;
}
}
cat = mozilla::unicode::GetGenCategory(ch);
if (languageSpecificCasing == eLSCB_Irish &&
cat == nsIUGenCategory::kLetter) {
// See bug 1018805 for Irish lowercasing requirements
if (!prevIsLetter && (ch == 'n' || ch == 't')) {
ntPrefix = true;
} else {
if (ntPrefix && mozilla::IrishCasing::IsUpperVowel(ch)) {
aConvertedString.Append('-');
++extraChars;
}
ntPrefix = false;
}
} else {
ntPrefix = false;
}
// Special lowercasing behavior for Greek Sigma: note that this is listed
// as context-sensitive in Unicode's SpecialCasing.txt, but is *not* a
// language-specific mapping; it applies regardless of the language of
// the element.
//
// The lowercase mapping for CAPITAL SIGMA should be to SMALL SIGMA (i.e.
// the non-final form) whenever there is a following letter, or when the
// CAPITAL SIGMA occurs in isolation (neither preceded nor followed by a
// LETTER); and to FINAL SIGMA when it is preceded by another letter but
// not followed by one.
//
// To implement the context-sensitive nature of this mapping, we keep
// track of whether the previous character was a letter. If not, CAPITAL
// SIGMA will map directly to SMALL SIGMA. If the previous character
// was a letter, CAPITAL SIGMA maps to FINAL SIGMA and we record the
// position in the converted string; if we then encounter another letter,
// that FINAL SIGMA is replaced with a standard SMALL SIGMA.
// If sigmaIndex is not -1, it marks where we have provisionally mapped
// a CAPITAL SIGMA to FINAL SIGMA; if we now find another letter, we
// need to change it to SMALL SIGMA.
if (sigmaIndex != uint32_t(-1)) {
if (cat == nsIUGenCategory::kLetter) {
aConvertedString.SetCharAt(GREEK_SMALL_LETTER_SIGMA, sigmaIndex);
}
}
if (ch == GREEK_CAPITAL_LETTER_SIGMA) {
// If preceding char was a letter, map to FINAL instead of SMALL,
// and note where it occurred by setting sigmaIndex; we'll change it
// to standard SMALL SIGMA later if another letter follows
if (prevIsLetter) {
ch = GREEK_SMALL_LETTER_FINAL_SIGMA;
sigmaIndex = aConvertedString.Length();
} else {
// CAPITAL SIGMA not preceded by a letter is unconditionally mapped
// to SMALL SIGMA
ch = GREEK_SMALL_LETTER_SIGMA;
sigmaIndex = uint32_t(-1);
}
prevIsLetter = true;
break;
}
// ignore diacritics for the purpose of contextual sigma mapping;
// otherwise, reset prevIsLetter appropriately and clear the
// sigmaIndex marker
if (cat != nsIUGenCategory::kMark) {
prevIsLetter = (cat == nsIUGenCategory::kLetter);
sigmaIndex = uint32_t(-1);
}
mcm = mozilla::unicode::SpecialLower(ch);
if (mcm) {
int j = 0;
while (j < 2 && mcm->mMappedChars[j + 1]) {
aConvertedString.Append(mcm->mMappedChars[j]);
++extraChars;
++j;
}
ch = mcm->mMappedChars[j];
break;
}
ch = ToLowerCase(ch);
break;
case NS_STYLE_TEXT_TRANSFORM_UPPERCASE:
if (languageSpecificCasing == eLSCB_Turkish && ch == 'i') {
ch = LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE;
break;
}
if (languageSpecificCasing == eLSCB_Greek) {
ch = mozilla::GreekCasing::UpperCase(ch, greekState);
break;
}
if (languageSpecificCasing == eLSCB_Irish) {
bool mark;
uint8_t action;
ch = mozilla::IrishCasing::UpperCase(ch, irishState, mark, action);
if (mark) {
irishMark = aConvertedString.Length();
break;
} else if (action) {
nsString& str = aConvertedString; // shorthand
switch (action) {
case 1:
// lowercase a single prefix letter
NS_ASSERTION(str.Length() > 0 && irishMark < str.Length(),
"bad irishMark!");
str.SetCharAt(ToLowerCase(str[irishMark]), irishMark);
irishMark = uint32_t(-1);
break;
case 2:
// lowercase two prefix letters (immediately before current pos)
NS_ASSERTION(str.Length() >= 2 && irishMark == str.Length() - 2,
"bad irishMark!");
str.SetCharAt(ToLowerCase(str[irishMark]), irishMark);
str.SetCharAt(ToLowerCase(str[irishMark + 1]), irishMark + 1);
irishMark = uint32_t(-1);
break;
case 3:
// lowercase one prefix letter, and delete following hyphen
// (which must be the immediately-preceding char)
NS_ASSERTION(str.Length() >= 2 && irishMark == str.Length() - 2,
"bad irishMark!");
str.Replace(irishMark, 2, ToLowerCase(str[irishMark]));
aDeletedCharsArray[irishMark + 1] = true;
// Remove the trailing entries (corresponding to the deleted hyphen)
// from the auxiliary arrays.
aCharsToMergeArray.SetLength(aCharsToMergeArray.Length() - 1);
if (aTextRun) {
aStyleArray->SetLength(aStyleArray->Length() - 1);
aCanBreakBeforeArray->SetLength(aCanBreakBeforeArray->Length() - 1);
inhibitBreakBefore = true;
}
mergeNeeded = true;
irishMark = uint32_t(-1);
break;
}
// ch has been set to the uppercase for current char;
// No need to check for SpecialUpper here as none of the characters
// that could trigger an Irish casing action have special mappings.
break;
}
// If we didn't have any special action to perform, fall through
// to check for special uppercase (ß)
}
mcm = mozilla::unicode::SpecialUpper(ch);
if (mcm) {
int j = 0;
while (j < 2 && mcm->mMappedChars[j + 1]) {
aConvertedString.Append(mcm->mMappedChars[j]);
++extraChars;
++j;
}
ch = mcm->mMappedChars[j];
break;
}
ch = ToUpperCase(ch);
break;
case NS_STYLE_TEXT_TRANSFORM_CAPITALIZE:
if (aTextRun) {
if (capitalizeDutchIJ && ch == 'j') {
ch = 'J';
capitalizeDutchIJ = false;
break;
}
capitalizeDutchIJ = false;
if (i < aTextRun->mCapitalize.Length() && aTextRun->mCapitalize[i]) {
if (languageSpecificCasing == eLSCB_Turkish && ch == 'i') {
ch = LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE;
break;
}
if (languageSpecificCasing == eLSCB_Dutch && ch == 'i') {
ch = 'I';
capitalizeDutchIJ = true;
break;
}
mcm = mozilla::unicode::SpecialTitle(ch);
if (mcm) {
int j = 0;
while (j < 2 && mcm->mMappedChars[j + 1]) {
aConvertedString.Append(mcm->mMappedChars[j]);
++extraChars;
++j;
}
ch = mcm->mMappedChars[j];
break;
}
ch = ToTitleCase(ch);
}
}
break;
case NS_STYLE_TEXT_TRANSFORM_FULLWIDTH:
ch = mozilla::unicode::GetFullWidth(ch);
break;
default:
break;
}
if (ch == uint32_t(-1)) {
aDeletedCharsArray.AppendElement(true);
mergeNeeded = true;
} else {
aDeletedCharsArray.AppendElement(false);
aCharsToMergeArray.AppendElement(false);
if (aTextRun) {
aStyleArray->AppendElement(styleContext);
aCanBreakBeforeArray->AppendElement(inhibitBreakBefore ? false :
aTextRun->CanBreakLineBefore(i));
}
if (IS_IN_BMP(ch)) {
aConvertedString.Append(ch);
} else {
aConvertedString.Append(H_SURROGATE(ch));
aConvertedString.Append(L_SURROGATE(ch));
++i;
aDeletedCharsArray.AppendElement(true); // not exactly deleted, but the
// trailing surrogate is skipped
++extraChars;
}
while (extraChars-- > 0) {
mergeNeeded = true;
aCharsToMergeArray.AppendElement(true);
if (aTextRun) {
aStyleArray->AppendElement(styleContext);
aCanBreakBeforeArray->AppendElement(false);
}
}
}
}
return mergeNeeded;
}
nsresult
nsHyphenator::Hyphenate(const nsAString& aString,
nsTArray<bool>& aHyphens)
{
if (!aHyphens.SetLength(aString.Length())) {
return NS_ERROR_OUT_OF_MEMORY;
}
memset(aHyphens.Elements(), false, aHyphens.Length());
bool inWord = false;
uint32_t wordStart = 0, wordLimit = 0;
uint32_t chLen;
for (uint32_t i = 0; i < aString.Length(); i += chLen) {
uint32_t ch = aString[i];
chLen = 1;
if (NS_IS_HIGH_SURROGATE(ch)) {
if (i + 1 < aString.Length() && NS_IS_LOW_SURROGATE(aString[i+1])) {
ch = SURROGATE_TO_UCS4(ch, aString[i+1]);
chLen = 2;
} else {
NS_WARNING("unpaired surrogate found during hyphenation");
}
}
nsIUGenCategory::nsUGenCategory cat = mozilla::unicode::GetGenCategory(ch);
if (cat == nsIUGenCategory::kLetter || cat == nsIUGenCategory::kMark) {
if (!inWord) {
inWord = true;
wordStart = i;
}
wordLimit = i + chLen;
if (i + chLen < aString.Length()) {
continue;
}
}
if (inWord) {
const PRUnichar *begin = aString.BeginReading();
NS_ConvertUTF16toUTF8 utf8(begin + wordStart,
wordLimit - wordStart);
nsAutoTArray<char,200> utf8hyphens;
utf8hyphens.SetLength(utf8.Length() + 5);
char **rep = nullptr;
int *pos = nullptr;
int *cut = nullptr;
int err = hnj_hyphen_hyphenate2((HyphenDict*)mDict,
utf8.BeginReading(), utf8.Length(),
utf8hyphens.Elements(), nullptr,
&rep, &pos, &cut);
if (!err) {
// Surprisingly, hnj_hyphen_hyphenate2 converts the 'hyphens' buffer
// from utf8 code unit indexing (which would match the utf8 input
// string directly) to Unicode character indexing.
// We then need to convert this to utf16 code unit offsets for Gecko.
const char *hyphPtr = utf8hyphens.Elements();
const PRUnichar *cur = begin + wordStart;
const PRUnichar *end = begin + wordLimit;
while (cur < end) {
if (*hyphPtr & 0x01) {
aHyphens[cur - begin] = true;
}
cur++;
if (cur < end && NS_IS_LOW_SURROGATE(*cur) &&
NS_IS_HIGH_SURROGATE(*(cur-1)))
{
cur++;
}
hyphPtr++;
}
}
}
inWord = false;
}
return NS_OK;
}
nsresult
nsHyphenator::Hyphenate(const nsAString& aString,
nsTArray<PRPackedBool>& aHyphens)
{
if (!aHyphens.SetLength(aString.Length())) {
return NS_ERROR_OUT_OF_MEMORY;
}
memset(aHyphens.Elements(), PR_FALSE, aHyphens.Length());
PRBool inWord = PR_FALSE;
PRUint32 wordStart = 0, wordLimit = 0;
for (PRUint32 i = 0; i < aString.Length(); i++) {
PRUnichar ch = aString[i];
nsIUGenCategory::nsUGenCategory cat = mCategories->Get(ch);
if (cat == nsIUGenCategory::kLetter || cat == nsIUGenCategory::kMark) {
if (!inWord) {
inWord = PR_TRUE;
wordStart = i;
}
wordLimit = i + 1;
if (i < aString.Length() - 1) {
continue;
}
}
if (inWord) {
NS_ConvertUTF16toUTF8 utf8(aString.BeginReading() + wordStart,
wordLimit - wordStart);
nsAutoTArray<char,200> utf8hyphens;
utf8hyphens.SetLength(utf8.Length() + 5);
char **rep = nsnull;
int *pos = nsnull;
int *cut = nsnull;
int err = hnj_hyphen_hyphenate2((HyphenDict*)mDict,
utf8.BeginReading(), utf8.Length(),
utf8hyphens.Elements(), nsnull,
&rep, &pos, &cut);
if (!err) {
PRUint32 utf16offset = wordStart;
const char *cp = utf8.BeginReading();
while (cp < utf8.EndReading()) {
if (UTF8traits::isASCII(*cp)) { // single-byte utf8 char
cp++;
utf16offset++;
} else if (UTF8traits::is2byte(*cp)) { // 2-byte sequence
cp += 2;
utf16offset++;
} else if (UTF8traits::is3byte(*cp)) { // 3-byte sequence
cp += 3;
utf16offset++;
} else { // must be a 4-byte sequence (no need to check validity,
// as this was just created with NS_ConvertUTF16toUTF8)
NS_ASSERTION(UTF8traits::is4byte(*cp), "unexpected utf8 byte");
cp += 4;
utf16offset += 2;
}
NS_ASSERTION(cp <= utf8.EndReading(), "incomplete utf8 string?");
NS_ASSERTION(utf16offset <= aString.Length(), "length mismatch?");
if (utf8hyphens[cp - utf8.BeginReading() - 1] & 0x01) {
aHyphens[utf16offset - 1] = PR_TRUE;
}
}
}
}
inWord = PR_FALSE;
}
return NS_OK;
}