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43 #include "qquickfolderlistmodel.h"
44 #include "fileinfothread_p.h"
45 #include "fileproperty_p.h"
46 #include <qqmlcontext.h>
51 class QQuickFolderListModelPrivate
53 Q_DECLARE_PUBLIC(QQuickFolderListModel)
56 QQuickFolderListModelPrivate(QQuickFolderListModel *q)
58 sortField(QQuickFolderListModel::Name), sortReversed(false), showDirs(true), showDirsFirst(false), showDots(false), showOnlyReadable(false)
60 nameFilters << QLatin1String("*");
64 QQuickFolderListModel *q_ptr;
67 FileInfoThread fileInfoThread;
68 QList<FileProperty> data;
69 QHash<int, QByteArray> roleNames;
70 QQuickFolderListModel::SortField sortField;
71 QStringList nameFilters;
76 bool showOnlyReadable;
78 ~QQuickFolderListModelPrivate() {}
83 void _q_directoryChanged(const QString &directory, const QList<FileProperty> &list);
84 void _q_directoryUpdated(const QString &directory, const QList<FileProperty> &list, int fromIndex, int toIndex);
85 void _q_sortFinished(const QList<FileProperty> &list);
89 void QQuickFolderListModelPrivate::init()
91 Q_Q(QQuickFolderListModel);
92 qRegisterMetaType<QList<FileProperty> >("QList<FileProperty>");
93 q->connect(&fileInfoThread, SIGNAL(directoryChanged(QString, QList<FileProperty>)),
94 q, SLOT(_q_directoryChanged(QString, QList<FileProperty>)));
95 q->connect(&fileInfoThread, SIGNAL(directoryUpdated(QString, QList<FileProperty>, int, int)),
96 q, SLOT(_q_directoryUpdated(QString, QList<FileProperty>, int, int)));
97 q->connect(&fileInfoThread, SIGNAL(sortFinished(QList<FileProperty>)),
98 q, SLOT(_q_sortFinished(QList<FileProperty>)));
102 void QQuickFolderListModelPrivate::updateSorting()
104 Q_Q(QQuickFolderListModel);
106 QDir::SortFlags flags = 0;
109 case QQuickFolderListModel::Unsorted:
110 flags |= QDir::Unsorted;
112 case QQuickFolderListModel::Name:
115 case QQuickFolderListModel::Time:
118 case QQuickFolderListModel::Size:
121 case QQuickFolderListModel::Type:
128 emit q->layoutAboutToBeChanged();
131 flags |= QDir::Reversed;
133 fileInfoThread.setSortFlags(flags);
136 void QQuickFolderListModelPrivate::_q_directoryChanged(const QString &directory, const QList<FileProperty> &list)
138 Q_Q(QQuickFolderListModel);
143 emit q->rowCountChanged();
144 emit q->folderChanged();
148 void QQuickFolderListModelPrivate::_q_directoryUpdated(const QString &directory, const QList<FileProperty> &list, int fromIndex, int toIndex)
150 Q_Q(QQuickFolderListModel);
154 if (data.size() > list.size()) {
155 //File(s) removed. Since I do not know how many
156 //or where I need to update the whole list from the first item.
158 q->beginRemoveRows(parent, fromIndex, toIndex);
160 q->beginInsertRows(parent, fromIndex, list.size()-1);
162 emit q->rowCountChanged();
163 } else if (data.size() < list.size()) {
164 //qDebug() << "File added. FromIndex: " << fromIndex << " toIndex: " << toIndex << " list size: " << list.size();
165 //File(s) added. Calculate how many and insert
166 //from the first changed one.
167 toIndex = fromIndex + (list.size() - data.size()-1);
168 q->beginInsertRows(parent, fromIndex, toIndex);
171 emit q->rowCountChanged();
172 QModelIndex modelIndexFrom = q->createIndex(fromIndex, 0);
173 QModelIndex modelIndexTo = q->createIndex(toIndex, 0);
174 emit q->dataChanged(modelIndexFrom, modelIndexTo);
176 //qDebug() << "File has been updated";
177 QModelIndex modelIndexFrom = q->createIndex(fromIndex, 0);
178 QModelIndex modelIndexTo = q->createIndex(toIndex, 0);
180 emit q->dataChanged(modelIndexFrom, modelIndexTo);
184 void QQuickFolderListModelPrivate::_q_sortFinished(const QList<FileProperty> &list)
186 Q_Q(QQuickFolderListModel);
189 q->beginRemoveRows(parent, 0, data.size()-1);
193 q->beginInsertRows(parent, 0, list.size()-1);
200 \qmltype FolderListModel
201 \instantiates QQuickFolderListModel
202 \ingroup qtquick-models
203 \brief The FolderListModel provides a model of the contents of a file system folder.
205 FolderListModel provides access to information about the contents of a folder
206 in the local file system, exposing a list of files to views and other data components.
208 \note This type is made available by importing the \c Qt.labs.folderlistmodel module.
209 \e{Elements in the Qt.labs module are not guaranteed to remain compatible
212 \b{import Qt.labs.folderlistmodel 1.0}
214 The \l folder property specifies the folder to access. Information about the
215 files and directories in the folder is supplied via the model's interface.
216 Components access names and paths via the following roles:
229 Additionally a file entry can be differentiated from a folder entry via the
234 Various properties can be set to filter the number of files and directories
235 exposed by the model.
237 The \l nameFilters property can be set to contain a list of wildcard filters
238 that are applied to names of files and directories, causing only those that
239 match the filters to be exposed.
241 Directories can be included or excluded using the \l showDirs property, and
242 navigation directories can also be excluded by setting the \l showDotAndDotDot
245 It is sometimes useful to limit the files and directories exposed to those
246 that the user can access. The \l showOnlyReadable property can be set to
249 \section1 Example Usage
251 The following example shows a FolderListModel being used to provide a list
252 of QML files in a \l ListView:
254 \snippet qml/folderlistmodel.qml 0
256 \section1 Path Separators
258 Qt uses "/" as a universal directory separator in the same way that "/" is
259 used as a path separator in URLs. If you always use "/" as a directory
260 separator, Qt will translate your paths to conform to the underlying
263 \sa {QML Data Models}
266 QQuickFolderListModel::QQuickFolderListModel(QObject *parent)
267 : QAbstractListModel(parent), d_ptr(new QQuickFolderListModelPrivate(this))
269 Q_D(QQuickFolderListModel);
270 d->roleNames[FileNameRole] = "fileName";
271 d->roleNames[FilePathRole] = "filePath";
272 d->roleNames[FileBaseNameRole] = "fileBaseName";
273 d->roleNames[FileSuffixRole] = "fileSuffix";
274 d->roleNames[FileSizeRole] = "fileSize";
275 d->roleNames[FileLastModifiedRole] = "fileModified";
276 d->roleNames[FileLastReadRole] = "fileAccessed";
277 d->roleNames[FileIsDirRole] = "fileIsDir";
281 QQuickFolderListModel::~QQuickFolderListModel()
285 QVariant QQuickFolderListModel::data(const QModelIndex &index, int role) const
287 Q_D(const QQuickFolderListModel);
290 if (index.row() >= d->data.size())
296 rv = d->data.at(index.row()).fileName();
299 rv = d->data.at(index.row()).filePath();
301 case FileBaseNameRole:
302 rv = d->data.at(index.row()).baseName();
305 rv = d->data.at(index.row()).suffix();
308 rv = d->data.at(index.row()).size();
310 case FileLastModifiedRole:
311 rv = d->data.at(index.row()).lastModified().date().toString(Qt::ISODate) + " " + d->data.at(index.row()).lastModified().time().toString();
313 case FileLastReadRole:
314 rv = d->data.at(index.row()).lastRead().date().toString(Qt::ISODate) + " " + d->data.at(index.row()).lastRead().time().toString();
317 rv = d->data.at(index.row()).isDir();
325 QHash<int, QByteArray> QQuickFolderListModel::roleNames() const
327 Q_D(const QQuickFolderListModel);
332 \qmlproperty int FolderListModel::count
334 Returns the number of items in the current folder that match the
337 int QQuickFolderListModel::rowCount(const QModelIndex &parent) const
339 Q_D(const QQuickFolderListModel);
341 return d->data.size();
344 QModelIndex QQuickFolderListModel::index(int row, int , const QModelIndex &) const
346 return createIndex(row, 0);
350 \qmlproperty string FolderListModel::folder
352 The \a folder property holds a URL for the folder that the model is
355 The value is a URL expressed as a string, and must be a \c file: or \c qrc:
356 URL, or a relative URL.
358 By default, the value is an invalid URL.
360 QUrl QQuickFolderListModel::folder() const
362 Q_D(const QQuickFolderListModel);
363 return d->currentDir;
366 void QQuickFolderListModel::setFolder(const QUrl &folder)
368 Q_D(QQuickFolderListModel);
370 if (folder == d->currentDir)
373 QString localPath = QQmlFile::urlToLocalFileOrQrc(folder);
374 QString resolvedPath = QDir::cleanPath(QUrl(localPath).path());
378 //Remove the old path for the file system watcher
379 if (!d->currentDir.isEmpty())
380 d->fileInfoThread.removePath(d->currentDir.path());
382 d->currentDir = folder;
384 QFileInfo info(resolvedPath);
385 if (!info.exists() || !info.isDir()) {
388 emit rowCountChanged();
392 d->fileInfoThread.setPath(resolvedPath);
397 \qmlproperty string QQuickFolderListModel::rootFolder
399 When the rootFolder is set, then this folder will
400 be threated as the root in the file system, so that
401 you can only travers sub folders from this rootFolder.
403 QUrl QQuickFolderListModel::rootFolder() const
405 Q_D(const QQuickFolderListModel);
409 void QQuickFolderListModel::setRootFolder(const QUrl &path)
411 Q_D(QQuickFolderListModel);
416 QString localPath = QQmlFile::urlToLocalFileOrQrc(path);
417 QString resolvedPath = QDir::cleanPath(QUrl(localPath).path());
419 QFileInfo info(resolvedPath);
420 if (!info.exists() || !info.isDir())
423 d->fileInfoThread.setRootPath(resolvedPath);
429 \qmlproperty url FolderListModel::parentFolder
431 Returns the URL of the parent of of the current \l folder.
433 QUrl QQuickFolderListModel::parentFolder() const
435 Q_D(const QQuickFolderListModel);
437 QString localFile = d->currentDir.toLocalFile();
438 if (!localFile.isEmpty()) {
440 #if defined(Q_OS_WIN)
446 localFile = dir.path();
448 int pos = d->currentDir.path().lastIndexOf(QLatin1Char('/'));
451 localFile = d->currentDir.path().left(pos);
453 return QUrl::fromLocalFile(localFile);
457 \qmlproperty list<string> FolderListModel::nameFilters
459 The \a nameFilters property contains a list of file name filters.
460 The filters may include the ? and * wildcards.
462 The example below filters on PNG and JPEG files:
466 nameFilters: [ "*.png", "*.jpg" ]
470 \note Directories are not excluded by filters.
472 QStringList QQuickFolderListModel::nameFilters() const
474 Q_D(const QQuickFolderListModel);
475 return d->nameFilters;
478 void QQuickFolderListModel::setNameFilters(const QStringList &filters)
480 Q_D(QQuickFolderListModel);
481 d->fileInfoThread.setNameFilters(filters);
482 d->nameFilters = filters;
485 void QQuickFolderListModel::classBegin()
489 void QQuickFolderListModel::componentComplete()
491 Q_D(QQuickFolderListModel);
493 if (!d->currentDir.isValid() || d->currentDir.toLocalFile().isEmpty() || !QDir().exists(d->currentDir.toLocalFile()))
494 setFolder(QUrl(QLatin1String("file://")+QDir::currentPath()));
498 \qmlproperty enumeration FolderListModel::sortField
500 The \a sortField property contains field to use for sorting. sortField
503 \li Unsorted - no sorting is applied.
504 \li Name - sort by filename
505 \li LastModified - sort by time modified
506 \li Size - sort by file size
507 \li Type - sort by file type (extension)
512 QQuickFolderListModel::SortField QQuickFolderListModel::sortField() const
514 Q_D(const QQuickFolderListModel);
518 void QQuickFolderListModel::setSortField(SortField field)
520 Q_D(QQuickFolderListModel);
521 if (field != d->sortField) {
522 d->sortField = field;
527 int QQuickFolderListModel::roleFromString(const QString &roleName) const
529 Q_D(const QQuickFolderListModel);
530 return d->roleNames.key(roleName.toLatin1(), -1);
534 \qmlproperty bool FolderListModel::sortReversed
536 If set to true, reverses the sort order. The default is false.
540 bool QQuickFolderListModel::sortReversed() const
542 Q_D(const QQuickFolderListModel);
543 return d->sortReversed;
546 void QQuickFolderListModel::setSortReversed(bool rev)
548 Q_D(QQuickFolderListModel);
550 if (rev != d->sortReversed) {
551 d->sortReversed = rev;
557 \qmlmethod bool FolderListModel::isFolder(int index)
559 Returns true if the entry \a index is a folder; otherwise
562 bool QQuickFolderListModel::isFolder(int index) const
565 QModelIndex idx = createIndex(index, 0);
567 QVariant var = data(idx, FileIsDirRole);
576 \qmlproperty bool FolderListModel::showDirs
578 If true, directories are included in the model; otherwise only files
581 By default, this property is true.
583 Note that the nameFilters are not applied to directories.
587 bool QQuickFolderListModel::showDirs() const
589 Q_D(const QQuickFolderListModel);
593 void QQuickFolderListModel::setShowDirs(bool on)
595 Q_D(QQuickFolderListModel);
597 d->fileInfoThread.setShowDirs(on);
602 \qmlproperty bool FolderListModel::showDirsFirst
604 If true, if directories are included in the model they will
605 always be shown first, then the files.
607 By default, this property is false.
610 bool QQuickFolderListModel::showDirsFirst() const
612 Q_D(const QQuickFolderListModel);
613 return d->showDirsFirst;
616 void QQuickFolderListModel::setShowDirsFirst(bool on)
618 Q_D(QQuickFolderListModel);
620 d->fileInfoThread.setShowDirsFirst(on);
621 d->showDirsFirst = on;
626 \qmlproperty bool FolderListModel::showDotAndDotDot
628 If true, the "." and ".." directories are included in the model; otherwise
631 By default, this property is false.
635 bool QQuickFolderListModel::showDotAndDotDot() const
637 Q_D(const QQuickFolderListModel);
641 void QQuickFolderListModel::setShowDotAndDotDot(bool on)
643 Q_D(QQuickFolderListModel);
645 if (on != d->showDots) {
646 d->fileInfoThread.setShowDotDot(on);
651 \qmlproperty bool FolderListModel::showOnlyReadable
653 If true, only readable files and directories are shown; otherwise all files
654 and directories are shown.
656 By default, this property is false.
660 bool QQuickFolderListModel::showOnlyReadable() const
662 Q_D(const QQuickFolderListModel);
663 return d->showOnlyReadable;
666 void QQuickFolderListModel::setShowOnlyReadable(bool on)
668 Q_D(QQuickFolderListModel);
670 if (on != d->showOnlyReadable) {
671 d->fileInfoThread.setShowOnlyReadable(on);
676 \qmlmethod QVariant QQuickFolderListModel::get(int idx, const QString &property) const
678 Get the folder property for the given index. The following properties
692 QVariant QQuickFolderListModel::get(int idx, const QString &property) const
694 int role = roleFromString(property);
695 if (role >= 0 && idx >= 0)
696 return data(index(idx, 0), role);
701 #include "moc_qquickfolderlistmodel.cpp"