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43 #include "qquickfolderlistmodel.h"
44 #include "fileinfothread_p.h"
45 #include "fileproperty_p.h"
46 #include <qqmlcontext.h>
47 #include <private/qqmlengine_p.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 \qmlclass FolderListModel QQuickFolderListModel
201 \ingroup qml-working-with-data
202 \brief The FolderListModel provides a model of the contents of a file system folder.
204 FolderListModel provides access to information about the contents of a folder
205 in the local file system, exposing a list of files to views and other data components.
207 \note This type is made available by importing the \c Qt.labs.folderlistmodel module.
208 \e{Elements in the Qt.labs module are not guaranteed to remain compatible
211 \b{import Qt.labs.folderlistmodel 1.0}
213 The \l folder property specifies the folder to access. Information about the
214 files and directories in the folder is supplied via the model's interface.
215 Components access names and paths via the following roles:
228 Additionally a file entry can be differentiated from a folder entry via the
233 Various properties can be set to filter the number of files and directories
234 exposed by the model.
236 The \l nameFilters property can be set to contain a list of wildcard filters
237 that are applied to names of files and directories, causing only those that
238 match the filters to be exposed.
240 Directories can be included or excluded using the \l showDirs property, and
241 navigation directories can also be excluded by setting the \l showDotAndDotDot
244 It is sometimes useful to limit the files and directories exposed to those
245 that the user can access. The \l showOnlyReadable property can be set to
248 \section1 Example Usage
250 The following example shows a FolderListModel being used to provide a list
251 of QML files in a \l ListView:
253 \snippet doc/src/snippets/qml/folderlistmodel.qml 0
255 \section1 Path Separators
257 Qt uses "/" as a universal directory separator in the same way that "/" is
258 used as a path separator in URLs. If you always use "/" as a directory
259 separator, Qt will translate your paths to conform to the underlying
262 \sa {QML Data Models}
265 QQuickFolderListModel::QQuickFolderListModel(QObject *parent)
266 : QAbstractListModel(parent), d_ptr(new QQuickFolderListModelPrivate(this))
268 Q_D(QQuickFolderListModel);
269 d->roleNames[FileNameRole] = "fileName";
270 d->roleNames[FilePathRole] = "filePath";
271 d->roleNames[FileBaseNameRole] = "fileBaseName";
272 d->roleNames[FileSuffixRole] = "fileSuffix";
273 d->roleNames[FileSizeRole] = "fileSize";
274 d->roleNames[FileLastModifiedRole] = "fileModified";
275 d->roleNames[FileLastReadRole] = "fileAccessed";
276 d->roleNames[FileIsDirRole] = "fileIsDir";
277 setRoleNames(d->roleNames);
282 QQuickFolderListModel::~QQuickFolderListModel()
286 QVariant QQuickFolderListModel::data(const QModelIndex &index, int role) const
288 Q_D(const QQuickFolderListModel);
291 if (index.row() >= d->data.size())
297 rv = d->data.at(index.row()).fileName();
300 rv = d->data.at(index.row()).filePath();
302 case FileBaseNameRole:
303 rv = d->data.at(index.row()).baseName();
306 rv = d->data.at(index.row()).suffix();
309 rv = d->data.at(index.row()).size();
311 case FileLastModifiedRole:
312 rv = d->data.at(index.row()).lastModified().date().toString(Qt::ISODate) + " " + d->data.at(index.row()).lastModified().time().toString();
314 case FileLastReadRole:
315 rv = d->data.at(index.row()).lastRead().date().toString(Qt::ISODate) + " " + d->data.at(index.row()).lastRead().time().toString();
318 rv = d->data.at(index.row()).isDir();
327 \qmlproperty int FolderListModel::count
329 Returns the number of items in the current folder that match the
332 int QQuickFolderListModel::rowCount(const QModelIndex &parent) const
334 Q_D(const QQuickFolderListModel);
336 return d->data.size();
339 QModelIndex QQuickFolderListModel::index(int row, int , const QModelIndex &) const
341 return createIndex(row, 0);
345 \qmlproperty string FolderListModel::folder
347 The \a folder property holds a URL for the folder that the model is
350 The value is a URL expressed as a string, and must be a \c file: or \c qrc:
351 URL, or a relative URL.
353 By default, the value is an invalid URL.
355 QUrl QQuickFolderListModel::folder() const
357 Q_D(const QQuickFolderListModel);
358 return d->currentDir;
361 void QQuickFolderListModel::setFolder(const QUrl &folder)
363 Q_D(QQuickFolderListModel);
365 if (folder == d->currentDir)
368 QString localPath = QQmlEnginePrivate::urlToLocalFileOrQrc(folder);
369 QString resolvedPath = QDir::cleanPath(QUrl(localPath).path());
373 //Remove the old path for the file system watcher
374 if (!d->currentDir.isEmpty())
375 d->fileInfoThread.removePath(d->currentDir.path());
377 d->currentDir = folder;
379 QFileInfo info(resolvedPath);
380 if (!info.exists() || !info.isDir()) {
383 emit rowCountChanged();
387 d->fileInfoThread.setPath(resolvedPath);
392 \qmlproperty string QQuickFolderListModel::rootFolder
394 When the rootFolder is set, then this folder will
395 be threated as the root in the file system, so that
396 you can only travers sub folders from this rootFolder.
398 QUrl QQuickFolderListModel::rootFolder() const
400 Q_D(const QQuickFolderListModel);
404 void QQuickFolderListModel::setRootFolder(const QUrl &path)
406 Q_D(QQuickFolderListModel);
411 QString localPath = QQmlEnginePrivate::urlToLocalFileOrQrc(path);
412 QString resolvedPath = QDir::cleanPath(QUrl(localPath).path());
414 QFileInfo info(resolvedPath);
415 if (!info.exists() || !info.isDir())
418 d->fileInfoThread.setRootPath(resolvedPath);
424 \qmlproperty url FolderListModel::parentFolder
426 Returns the URL of the parent of of the current \l folder.
428 QUrl QQuickFolderListModel::parentFolder() const
430 Q_D(const QQuickFolderListModel);
432 QString localFile = d->currentDir.toLocalFile();
433 if (!localFile.isEmpty()) {
435 #if defined(Q_OS_WIN)
441 localFile = dir.path();
443 int pos = d->currentDir.path().lastIndexOf(QLatin1Char('/'));
446 localFile = d->currentDir.path().left(pos);
448 return QUrl::fromLocalFile(localFile);
452 \qmlproperty list<string> FolderListModel::nameFilters
454 The \a nameFilters property contains a list of file name filters.
455 The filters may include the ? and * wildcards.
457 The example below filters on PNG and JPEG files:
461 nameFilters: [ "*.png", "*.jpg" ]
465 \note Directories are not excluded by filters.
467 QStringList QQuickFolderListModel::nameFilters() const
469 Q_D(const QQuickFolderListModel);
470 return d->nameFilters;
473 void QQuickFolderListModel::setNameFilters(const QStringList &filters)
475 Q_D(QQuickFolderListModel);
476 d->fileInfoThread.setNameFilters(filters);
477 d->nameFilters = filters;
480 void QQuickFolderListModel::classBegin()
484 void QQuickFolderListModel::componentComplete()
486 Q_D(QQuickFolderListModel);
488 if (!d->currentDir.isValid() || d->currentDir.toLocalFile().isEmpty() || !QDir().exists(d->currentDir.toLocalFile()))
489 setFolder(QUrl(QLatin1String("file://")+QDir::currentPath()));
493 \qmlproperty enumeration FolderListModel::sortField
495 The \a sortField property contains field to use for sorting. sortField
498 \li Unsorted - no sorting is applied.
499 \li Name - sort by filename
500 \li LastModified - sort by time modified
501 \li Size - sort by file size
502 \li Type - sort by file type (extension)
507 QQuickFolderListModel::SortField QQuickFolderListModel::sortField() const
509 Q_D(const QQuickFolderListModel);
513 void QQuickFolderListModel::setSortField(SortField field)
515 Q_D(QQuickFolderListModel);
516 if (field != d->sortField) {
517 d->sortField = field;
522 int QQuickFolderListModel::roleFromString(const QString &roleName) const
524 Q_D(const QQuickFolderListModel);
525 return d->roleNames.key(roleName.toLatin1(), -1);
529 \qmlproperty bool FolderListModel::sortReversed
531 If set to true, reverses the sort order. The default is false.
535 bool QQuickFolderListModel::sortReversed() const
537 Q_D(const QQuickFolderListModel);
538 return d->sortReversed;
541 void QQuickFolderListModel::setSortReversed(bool rev)
543 Q_D(QQuickFolderListModel);
545 if (rev != d->sortReversed) {
546 d->sortReversed = rev;
552 \qmlmethod bool FolderListModel::isFolder(int index)
554 Returns true if the entry \a index is a folder; otherwise
557 bool QQuickFolderListModel::isFolder(int index) const
560 QModelIndex idx = createIndex(index, 0);
562 QVariant var = data(idx, FileIsDirRole);
571 \qmlproperty bool FolderListModel::showDirs
573 If true, directories are included in the model; otherwise only files
576 By default, this property is true.
578 Note that the nameFilters are not applied to directories.
582 bool QQuickFolderListModel::showDirs() const
584 Q_D(const QQuickFolderListModel);
588 void QQuickFolderListModel::setShowDirs(bool on)
590 Q_D(QQuickFolderListModel);
592 d->fileInfoThread.setShowDirs(on);
597 \qmlproperty bool FolderListModel::showDirsFirst
599 If true, if directories are included in the model they will
600 always be shown first, then the files.
602 By default, this property is false.
605 bool QQuickFolderListModel::showDirsFirst() const
607 Q_D(const QQuickFolderListModel);
608 return d->showDirsFirst;
611 void QQuickFolderListModel::setShowDirsFirst(bool on)
613 Q_D(QQuickFolderListModel);
615 d->fileInfoThread.setShowDirsFirst(on);
616 d->showDirsFirst = on;
621 \qmlproperty bool FolderListModel::showDotAndDotDot
623 If true, the "." and ".." directories are included in the model; otherwise
626 By default, this property is false.
630 bool QQuickFolderListModel::showDotAndDotDot() const
632 Q_D(const QQuickFolderListModel);
636 void QQuickFolderListModel::setShowDotAndDotDot(bool on)
638 Q_D(QQuickFolderListModel);
640 if (on != d->showDots) {
641 d->fileInfoThread.setShowDotDot(on);
646 \qmlproperty bool FolderListModel::showOnlyReadable
648 If true, only readable files and directories are shown; otherwise all files
649 and directories are shown.
651 By default, this property is false.
655 bool QQuickFolderListModel::showOnlyReadable() const
657 Q_D(const QQuickFolderListModel);
658 return d->showOnlyReadable;
661 void QQuickFolderListModel::setShowOnlyReadable(bool on)
663 Q_D(QQuickFolderListModel);
665 if (on != d->showOnlyReadable) {
666 d->fileInfoThread.setShowOnlyReadable(on);
671 \qmlmethod QVariant QQuickFolderListModel::get(int idx, const QString &property) const
673 Get the folder property for the given index. The following properties
687 QVariant QQuickFolderListModel::get(int idx, const QString &property) const
689 int role = roleFromString(property);
690 if (role >= 0 && idx >= 0)
691 return data(index(idx, 0), role);
696 #include "moc_qquickfolderlistmodel.cpp"