/*!
\internal
*/
void QDirIteratorPrivate::pushDirectory(const QFileInfo &fileInfo)
{
QString path = fileInfo.filePath();
#ifdef Q_OS_WIN
if (fileInfo.isSymLink())
path = fileInfo.canonicalFilePath();
#endif
if (iteratorFlags & QDirIterator::FollowSymlinks)
visitedLinks << fileInfo.canonicalFilePath();
if (engine) {
engine->setFileName(path);
QAbstractFileEngineIterator *it = engine->beginEntryList(filters, nameFilters);
if (it) {
it->setPath(path);
fileEngineIterators << it;
} else {
// No iterator; no entry list.
}
} else {
#ifndef QT_NO_FILESYSTEMITERATOR
QFileSystemIterator *it = new QFileSystemIterator(fileInfo.d_ptr->fileEntry,
filters, nameFilters, iteratorFlags);
nativeIterators << it;
#endif
}
}
/*!
\internal
*/
void QDirIteratorPrivate::advance()
{
while (!fileEngineIterators.isEmpty()) {
// Find the next valid iterator that matches the filters.
while (fileEngineIterators.top()->hasNext()) {
QAbstractFileEngineIterator *it = fileEngineIterators.top();
it->next();
const QFileInfo info = it->currentFileInfo();
checkAndPushDirectory(it->currentFileInfo());
if (matchesFilters(it->currentFileName(), info)) {
currentFileInfo = nextFileInfo;
nextFileInfo = info;
//We found a matching entry.
return;
}
}
delete fileEngineIterators.pop();
}
currentFileInfo = nextFileInfo;
nextFileInfo = QFileInfo();
}
/*!
\internal
*/
void QDirIteratorPrivate::pushDirectory(const QFileInfo &fileInfo)
{
QString path = fileInfo.filePath();
#ifdef Q_OS_WIN
if (fileInfo.isSymLink())
path = fileInfo.canonicalFilePath();
#endif
if (iteratorFlags & QDirIterator::FollowSymlinks)
visitedLinks << fileInfo.canonicalFilePath();
if (engine) {
engine->setFileName(path);
QAbstractFileEngineIterator *it = engine->beginEntryList(filters, nameFilters);
if (it) {
it->setPath(path);
fileEngineIterators << it;
} else {
// No iterator; no entry list.
}
}
}
/*!
\internal
*/
void QDirIteratorPrivate::pushSubDirectory(const QString &path, const QStringList &nameFilters,
QDir::Filters filters)
{
if (iteratorFlags & QDirIterator::FollowSymlinks) {
if (nextFileInfo.filePath() != path)
nextFileInfo.setFile(path);
if (nextFileInfo.isSymLink()) {
visitedLinks << nextFileInfo.canonicalFilePath();
} else {
visitedLinks << nextFileInfo.absoluteFilePath();
}
}
if (engine || (engine = QAbstractFileEngine::create(this->path))) {
engine->setFileName(path);
QAbstractFileEngineIterator *it = engine->beginEntryList(filters, nameFilters);
if (it) {
it->setPath(path);
fileEngineIterators << it;
} else {
// No iterator; no entry list.
}
}
}
/*!
\internal
*/
void QDirIteratorPrivate::advance()
{
if (engine) {
while (!fileEngineIterators.isEmpty()) {
// Find the next valid iterator that matches the filters.
QAbstractFileEngineIterator *it;
while (it = fileEngineIterators.top(), it->hasNext()) {
it->next();
if (entryMatches(it->currentFileName(), it->currentFileInfo()))
return;
}
fileEngineIterators.pop();
delete it;
}
} else {
#ifndef QT_NO_FILESYSTEMITERATOR
QFileSystemEntry nextEntry;
QFileSystemMetaData nextMetaData;
while (!nativeIterators.isEmpty()) {
// Find the next valid iterator that matches the filters.
QFileSystemIterator *it;
while (it = nativeIterators.top(), it->advance(nextEntry, nextMetaData)) {
QFileInfo info(new QFileInfoPrivate(nextEntry, nextMetaData));
if (entryMatches(nextEntry.fileName(), info))
return;
}
nativeIterators.pop();
delete it;
}
#endif
}
currentFileInfo = nextFileInfo;
nextFileInfo = QFileInfo();
}
/*!
\internal
*/
void QDirIteratorPrivate::advance()
{
// Store the current entry
if (!fileEngineIterators.isEmpty())
currentFilePath = fileEngineIterators.top()->currentFilePath();
// Advance to the next entry
if (followNextDir) {
// Start by navigating into the current directory.
followNextDir = false;
QAbstractFileEngineIterator *it = fileEngineIterators.top();
QString subDir = it->currentFilePath();
#ifdef Q_OS_WIN
if (currentFileInfo.isSymLink())
subDir = currentFileInfo.canonicalFilePath();
#endif
pushSubDirectory(subDir, it->nameFilters(), it->filters());
}
while (!fileEngineIterators.isEmpty()) {
QAbstractFileEngineIterator *it = fileEngineIterators.top();
// Find the next valid iterator that matches the filters.
bool foundDirectory = false;
while (it->hasNext()) {
it->next();
if (matchesFilters(it)) {
currentFileInfo = nextFileInfo;
nextFileInfo = it->currentFileInfo();
// Signal that we want to follow this entry.
followNextDir = shouldFollowDirectory(nextFileInfo);
//We found a matching entry.
return;
} else if (iteratorFlags & QDirIterator::Subdirectories) {
QFileInfo fileInfo = it->currentFileInfo();
if (!shouldFollowDirectory(fileInfo))
continue;
QString subDir = it->currentFilePath();
#ifdef Q_OS_WIN
if (fileInfo.isSymLink())
subDir = fileInfo.canonicalFilePath();
#endif
pushSubDirectory(subDir, it->nameFilters(), it->filters());
foundDirectory = true;
break;
}
}
if (!foundDirectory)
delete fileEngineIterators.pop();
}
currentFileInfo = nextFileInfo;
done = true;
}
/*!
\internal
*/
void QDirIteratorPrivate::advance()
{
// Store the current entry
if (!fileEngineIterators.isEmpty())
currentFilePath = fileEngineIterators.top()->currentFilePath();
// Advance to the next entry
if (followNextDir) {
// Start by navigating into the current directory.
followNextDir = false;
QAbstractFileEngineIterator *it = fileEngineIterators.top();
QString subDir = it->currentFilePath();
#ifdef Q_OS_WIN
if (fileInfo.isSymLink())
subDir = fileInfo.canonicalFilePath();
#endif
pushSubDirectory(subDir, it->nameFilters(), it->filters());
}
if (fileEngineIterators.isEmpty())
done = true;
bool foundValidEntry = false;
while (!fileEngineIterators.isEmpty()) {
QAbstractFileEngineIterator *it = fileEngineIterators.top();
// Find the next valid iterator that matches the filters.
foundValidEntry = false;
while (it->hasNext()) {
it->next();
if (matchesFilters(it)) {
foundValidEntry = true;
break;
}
}
if (!foundValidEntry) {
// If this iterator is done, pop and delete it, and continue
// iteration on the parent. Otherwise break, we're done.
if (!fileEngineIterators.isEmpty()) {
delete it;
it = fileEngineIterators.pop();
continue;
}
break;
}
fileInfo = it->currentFileInfo();
// If we're doing flat iteration, we're done.
if (!(iteratorFlags & QDirIterator::Subdirectories))
break;
// Subdirectory iteration.
QString filePath = fileInfo.filePath();
// Never follow . and ..
if (fileInfo.fileName() == QLatin1String(".") || fileInfo.fileName() == QLatin1String(".."))
break;
// Never follow non-directory entries
if (!fileInfo.isDir())
break;
// Check symlinks
if (fileInfo.isSymLink() && !(iteratorFlags & QDirIterator::FollowSymlinks)) {
// Follow symlinks only if FollowSymlinks was passed
break;
}
// Stop link loops
if (visitedLinks.contains(fileInfo.canonicalFilePath()))
break;
// Signal that we want to follow this entry.
followNextDir = true;
break;
}
if (!foundValidEntry)
done = true;
}
