blob: 44f0a49d7613fa816dd8306c76096e7563738a68 [file] [log] [blame]
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****************************************************************************/
//![code]
#include "qquickfolderlistmodel.h"
#include "fileinfothread_p.h"
#include "fileproperty_p.h"
#include <qqmlcontext.h>
#include <qqmlfile.h>
QT_BEGIN_NAMESPACE
class QQuickFolderListModelPrivate
{
Q_DECLARE_PUBLIC(QQuickFolderListModel)
public:
QQuickFolderListModelPrivate(QQuickFolderListModel *q) : q_ptr(q) { }
QQuickFolderListModel *q_ptr;
QUrl currentDir;
QUrl rootDir;
FileInfoThread fileInfoThread;
QList<FileProperty> data;
QHash<int, QByteArray> roleNames;
QQuickFolderListModel::SortField sortField = QQuickFolderListModel::Name;
QStringList nameFilters = { QLatin1String("*") };
QQuickFolderListModel::Status status = QQuickFolderListModel::Null;
bool sortReversed = false;
bool showFiles = true;
bool showDirs = true;
bool showDirsFirst = false;
bool showDotAndDotDot = false;
bool showOnlyReadable = false;
bool showHidden = false;
bool caseSensitive = true;
bool sortCaseSensitive = true;
~QQuickFolderListModelPrivate() {}
void init();
void updateSorting();
// private slots
void _q_directoryChanged(const QString &directory, const QList<FileProperty> &list);
void _q_directoryUpdated(const QString &directory, const QList<FileProperty> &list, int fromIndex, int toIndex);
void _q_sortFinished(const QList<FileProperty> &list);
void _q_statusChanged(QQuickFolderListModel::Status s);
static QString resolvePath(const QUrl &path);
};
void QQuickFolderListModelPrivate::init()
{
Q_Q(QQuickFolderListModel);
qRegisterMetaType<QList<FileProperty> >("QList<FileProperty>");
qRegisterMetaType<QQuickFolderListModel::Status>("QQuickFolderListModel::Status");
q->connect(&fileInfoThread, SIGNAL(directoryChanged(QString,QList<FileProperty>)),
q, SLOT(_q_directoryChanged(QString,QList<FileProperty>)));
q->connect(&fileInfoThread, SIGNAL(directoryUpdated(QString,QList<FileProperty>,int,int)),
q, SLOT(_q_directoryUpdated(QString,QList<FileProperty>,int,int)));
q->connect(&fileInfoThread, SIGNAL(sortFinished(QList<FileProperty>)),
q, SLOT(_q_sortFinished(QList<FileProperty>)));
q->connect(&fileInfoThread, SIGNAL(statusChanged(QQuickFolderListModel::Status)),
q, SLOT(_q_statusChanged(QQuickFolderListModel::Status)));
q->connect(q, SIGNAL(rowCountChanged()), q, SIGNAL(countChanged()));
}
void QQuickFolderListModelPrivate::updateSorting()
{
Q_Q(QQuickFolderListModel);
QDir::SortFlags flags;
switch (sortField) {
case QQuickFolderListModel::Unsorted:
flags |= QDir::Unsorted;
break;
case QQuickFolderListModel::Name:
flags |= QDir::Name;
break;
case QQuickFolderListModel::Time:
flags |= QDir::Time;
break;
case QQuickFolderListModel::Size:
flags |= QDir::Size;
break;
case QQuickFolderListModel::Type:
flags |= QDir::Type;
break;
}
emit q->layoutAboutToBeChanged();
if (sortReversed)
flags |= QDir::Reversed;
if (!sortCaseSensitive)
flags |= QDir::IgnoreCase;
fileInfoThread.setSortFlags(flags);
}
void QQuickFolderListModelPrivate::_q_directoryChanged(const QString &directory, const QList<FileProperty> &list)
{
Q_Q(QQuickFolderListModel);
Q_UNUSED(directory);
data = list;
q->endResetModel();
emit q->rowCountChanged();
emit q->folderChanged();
}
void QQuickFolderListModelPrivate::_q_directoryUpdated(const QString &directory, const QList<FileProperty> &list, int fromIndex, int toIndex)
{
Q_Q(QQuickFolderListModel);
Q_UNUSED(directory);
QModelIndex parent;
if (data.size() == list.size()) {
QModelIndex modelIndexFrom = q->createIndex(fromIndex, 0);
QModelIndex modelIndexTo = q->createIndex(toIndex, 0);
data = list;
emit q->dataChanged(modelIndexFrom, modelIndexTo);
} else {
// File(s) inserted or removed. Since I do not know how many
// or where, I need to update the whole list from the first item.
// This is a little pessimistic, but optimizing it would require
// more information in the signal from FileInfoThread.
if (data.size() > 0) {
q->beginRemoveRows(parent, 0, data.size() - 1);
q->endRemoveRows();
}
data = list;
if (list.size() > 0) {
if (toIndex > list.size() - 1)
toIndex = list.size() - 1;
q->beginInsertRows(parent, 0, data.size() - 1);
q->endInsertRows();
}
emit q->rowCountChanged();
}
}
void QQuickFolderListModelPrivate::_q_sortFinished(const QList<FileProperty> &list)
{
Q_Q(QQuickFolderListModel);
QModelIndex parent;
if (data.size() > 0) {
q->beginRemoveRows(parent, 0, data.size()-1);
data.clear();
q->endRemoveRows();
}
q->beginInsertRows(parent, 0, list.size()-1);
data = list;
q->endInsertRows();
}
void QQuickFolderListModelPrivate::_q_statusChanged(QQuickFolderListModel::Status s)
{
Q_Q(QQuickFolderListModel);
if (status != s) {
status = s;
emit q->statusChanged();
}
}
QString QQuickFolderListModelPrivate::resolvePath(const QUrl &path)
{
QString localPath = QQmlFile::urlToLocalFileOrQrc(path);
QUrl localUrl = QUrl(localPath);
QString fullPath = localUrl.path();
if (localUrl.scheme().length())
fullPath = localUrl.scheme() + QLatin1Char(':') + fullPath;
return QDir::cleanPath(fullPath);
}
/*!
\qmlmodule Qt.labs.folderlistmodel 2.\QtMinorVersion
\title Qt Labs FolderListModel QML Types
\ingroup qmlmodules
\brief The FolderListModel provides a model of the contents of a file system folder.
To use this module, import the module with the following line:
\qml \QtMinorVersion
import Qt.labs.folderlistmodel 2.\1
\endqml
*/
/*!
\qmltype FolderListModel
\inqmlmodule Qt.labs.folderlistmodel
\instantiates QQuickFolderListModel
\ingroup qtquick-models
\brief The FolderListModel provides a model of the contents of a file system folder.
FolderListModel provides access to information about the contents of a folder
in the local file system, exposing a list of files to views and other data components.
\note This type is made available by importing the \c Qt.labs.folderlistmodel module.
\e{Elements in the Qt.labs module are not guaranteed to remain compatible
in future versions.}
\qml \QtMinorVersion
import Qt.labs.folderlistmodel 2.\1
\endqml
The \l folder property specifies the folder to access. Information about the
files and directories in the folder is supplied via the model's interface.
Components access names and paths via the following roles:
\list
\li \c fileName
\li \c filePath
\li \c fileURL (since Qt 5.2; deprecated since Qt 5.15)
\li \c fileUrl (since Qt 5.15)
\li \c fileBaseName
\li \c fileSuffix
\li \c fileSize
\li \c fileModified
\li \c fileAccessed
\li \c fileIsDir
\endlist
Additionally a file entry can be differentiated from a folder entry via the
isFolder() method.
\section1 Filtering
Various properties can be set to filter the number of files and directories
exposed by the model.
The \l nameFilters property can be set to contain a list of wildcard filters
that are applied to names of files and directories, causing only those that
match the filters to be exposed.
Directories can be included or excluded using the \l showDirs property,
navigation directories can also be excluded by setting the \l showDotAndDotDot
property to false, hidden files can be included or excluded using the
\l showHidden property.
It is sometimes useful to limit the files and directories exposed to those
that the user can access. The \l showOnlyReadable property can be set to
enable this feature.
\section1 Example Usage
The following example shows a FolderListModel being used to provide a list
of QML files in a \l ListView:
\qml \QtMinorVersion
import QtQuick 2.\1
import Qt.labs.folderlistmodel 2.\1
ListView {
width: 200; height: 400
FolderListModel {
id: folderModel
nameFilters: ["*.qml"]
}
Component {
id: fileDelegate
Text { text: fileName }
}
model: folderModel
delegate: fileDelegate
}
\endqml
\section1 Path Separators
Qt uses "/" as a universal directory separator in the same way that "/" is
used as a path separator in URLs. If you always use "/" as a directory
separator, Qt will translate your paths to conform to the underlying
operating system.
\sa {QML Data Models}
*/
QQuickFolderListModel::QQuickFolderListModel(QObject *parent)
: QAbstractListModel(parent), d_ptr(new QQuickFolderListModelPrivate(this))
{
Q_D(QQuickFolderListModel);
d->roleNames[FileNameRole] = "fileName";
d->roleNames[FilePathRole] = "filePath";
d->roleNames[FileBaseNameRole] = "fileBaseName";
d->roleNames[FileSuffixRole] = "fileSuffix";
d->roleNames[FileSizeRole] = "fileSize";
d->roleNames[FileLastModifiedRole] = "fileModified";
d->roleNames[FileLastReadRole] = "fileAccessed";
d->roleNames[FileIsDirRole] = "fileIsDir";
d->roleNames[FileUrlRole] = "fileUrl";
d->roleNames[FileURLRole] = "fileURL";
d->init();
}
QQuickFolderListModel::~QQuickFolderListModel()
{
}
QVariant QQuickFolderListModel::data(const QModelIndex &index, int role) const
{
Q_D(const QQuickFolderListModel);
QVariant rv;
if (index.row() >= d->data.size())
return rv;
switch (role)
{
case FileNameRole:
rv = d->data.at(index.row()).fileName();
break;
case FilePathRole:
rv = d->data.at(index.row()).filePath();
break;
case FileBaseNameRole:
rv = d->data.at(index.row()).baseName();
break;
case FileSuffixRole:
rv = d->data.at(index.row()).suffix();
break;
case FileSizeRole:
rv = d->data.at(index.row()).size();
break;
case FileLastModifiedRole:
rv = d->data.at(index.row()).lastModified();
break;
case FileLastReadRole:
rv = d->data.at(index.row()).lastRead();
break;
case FileIsDirRole:
rv = d->data.at(index.row()).isDir();
break;
case FileUrlRole:
case FileURLRole:
rv = QUrl::fromLocalFile(d->data.at(index.row()).filePath());
break;
default:
break;
}
return rv;
}
QHash<int, QByteArray> QQuickFolderListModel::roleNames() const
{
Q_D(const QQuickFolderListModel);
return d->roleNames;
}
/*!
\qmlproperty int FolderListModel::count
Returns the number of items in the current folder that match the
filter criteria.
*/
int QQuickFolderListModel::rowCount(const QModelIndex &parent) const
{
Q_D(const QQuickFolderListModel);
Q_UNUSED(parent);
return d->data.size();
}
QModelIndex QQuickFolderListModel::index(int row, int , const QModelIndex &) const
{
return createIndex(row, 0);
}
/*!
\qmlproperty url FolderListModel::folder
The \a folder property holds a URL for the folder that the model
currently provides.
The value must be a \c file: or \c qrc: URL, or a relative URL.
The default value is an invalid URL.
*/
QUrl QQuickFolderListModel::folder() const
{
Q_D(const QQuickFolderListModel);
return d->currentDir;
}
void QQuickFolderListModel::setFolder(const QUrl &folder)
{
Q_D(QQuickFolderListModel);
if (folder == d->currentDir)
return;
QString resolvedPath = QQuickFolderListModelPrivate::resolvePath(folder);
beginResetModel();
//Remove the old path for the file system watcher
if (!d->currentDir.isEmpty())
d->fileInfoThread.removePath(d->currentDir.path());
d->currentDir = folder;
QFileInfo info(resolvedPath);
if (!info.exists() || !info.isDir()) {
d->data.clear();
endResetModel();
emit rowCountChanged();
if (d->status != QQuickFolderListModel::Null) {
d->status = QQuickFolderListModel::Null;
emit statusChanged();
}
return;
}
d->fileInfoThread.setPath(resolvedPath);
}
/*!
\qmlproperty url FolderListModel::rootFolder
When this property is set, the given folder will
be treated as the root in the file system, so that
you can only traverse subfolders within it.
*/
QUrl QQuickFolderListModel::rootFolder() const
{
Q_D(const QQuickFolderListModel);
return d->rootDir;
}
void QQuickFolderListModel::setRootFolder(const QUrl &path)
{
Q_D(QQuickFolderListModel);
if (path.isEmpty())
return;
QString resolvedPath = QQuickFolderListModelPrivate::resolvePath(path);
QFileInfo info(resolvedPath);
if (!info.exists() || !info.isDir())
return;
d->fileInfoThread.setRootPath(resolvedPath);
d->rootDir = path;
}
/*!
\qmlproperty url FolderListModel::parentFolder
Returns the URL of the parent of the current \l folder.
*/
QUrl QQuickFolderListModel::parentFolder() const
{
Q_D(const QQuickFolderListModel);
QString localFile = d->currentDir.toLocalFile();
if (!localFile.isEmpty()) {
QDir dir(localFile);
if (dir.isRoot() || !dir.cdUp())
return QUrl();
localFile = dir.path();
} else {
const QString path = d->currentDir.path();
const int pos = path.lastIndexOf(QLatin1Char('/'));
if (pos <= 0)
return QUrl();
localFile = path.left(pos);
}
return QUrl::fromLocalFile(localFile);
}
/*!
\qmlproperty list<string> FolderListModel::nameFilters
The \a nameFilters property contains a list of file name filters.
The filters may include the ? and * wildcards.
The example below filters on PNG and JPEG files:
\qml
FolderListModel {
nameFilters: [ "*.png", "*.jpg" ]
}
\endqml
\note Directories are not excluded by filters.
*/
QStringList QQuickFolderListModel::nameFilters() const
{
Q_D(const QQuickFolderListModel);
return d->nameFilters;
}
void QQuickFolderListModel::setNameFilters(const QStringList &filters)
{
Q_D(QQuickFolderListModel);
if (d->nameFilters == filters)
return;
d->fileInfoThread.setNameFilters(filters);
d->nameFilters = filters;
}
void QQuickFolderListModel::classBegin()
{
}
void QQuickFolderListModel::componentComplete()
{
Q_D(QQuickFolderListModel);
QString localPath = QQmlFile::urlToLocalFileOrQrc(d->currentDir);
if (localPath.isEmpty() || !QDir(localPath).exists())
setFolder(QUrl::fromLocalFile(QDir::currentPath()));
d->fileInfoThread.start(QThread::LowPriority);
}
/*!
\qmlproperty enumeration FolderListModel::sortField
The \a sortField property contains field to use for sorting. sortField
may be one of:
\list
\li Unsorted - no sorting is applied.
\li Name - sort by filename
\li Time - sort by time modified
\li Size - sort by file size
\li Type - sort by file type (extension)
\endlist
\sa sortReversed
*/
QQuickFolderListModel::SortField QQuickFolderListModel::sortField() const
{
Q_D(const QQuickFolderListModel);
return d->sortField;
}
void QQuickFolderListModel::setSortField(SortField field)
{
Q_D(QQuickFolderListModel);
if (field != d->sortField) {
d->sortField = field;
d->updateSorting();
}
}
int QQuickFolderListModel::roleFromString(const QString &roleName) const
{
Q_D(const QQuickFolderListModel);
return d->roleNames.key(roleName.toLatin1(), -1);
}
/*!
\qmlproperty bool FolderListModel::sortReversed
If set to true, reverses the sort order. The default is false.
\sa sortField
*/
bool QQuickFolderListModel::sortReversed() const
{
Q_D(const QQuickFolderListModel);
return d->sortReversed;
}
void QQuickFolderListModel::setSortReversed(bool rev)
{
Q_D(QQuickFolderListModel);
if (rev != d->sortReversed) {
d->sortReversed = rev;
d->updateSorting();
}
}
/*!
\qmlmethod bool FolderListModel::isFolder(int index)
Returns true if the entry \a index is a folder; otherwise
returns false.
*/
bool QQuickFolderListModel::isFolder(int index) const
{
if (index != -1) {
QModelIndex idx = createIndex(index, 0);
if (idx.isValid()) {
QVariant var = data(idx, FileIsDirRole);
if (var.isValid())
return var.toBool();
}
}
return false;
}
/*!
\qmlproperty bool FolderListModel::showFiles
\since 5.2
If true, files are included in the model; otherwise only directories
are included.
By default, this property is true.
\sa showDirs
*/
bool QQuickFolderListModel::showFiles() const
{
Q_D(const QQuickFolderListModel);
return d->showFiles;
}
void QQuickFolderListModel::setShowFiles(bool on)
{
Q_D(QQuickFolderListModel);
d->fileInfoThread.setShowFiles(on);
d->showFiles = on;
}
/*!
\qmlproperty bool FolderListModel::showDirs
If true, directories are included in the model; otherwise only files
are included.
By default, this property is true.
Note that the nameFilters are not applied to directories.
\sa showDotAndDotDot
*/
bool QQuickFolderListModel::showDirs() const
{
Q_D(const QQuickFolderListModel);
return d->showDirs;
}
void QQuickFolderListModel::setShowDirs(bool on)
{
Q_D(QQuickFolderListModel);
d->fileInfoThread.setShowDirs(on);
d->showDirs = on;
}
/*!
\qmlproperty bool FolderListModel::showDirsFirst
If true, if directories are included in the model they will
always be shown first, then the files.
By default, this property is false.
*/
bool QQuickFolderListModel::showDirsFirst() const
{
Q_D(const QQuickFolderListModel);
return d->showDirsFirst;
}
void QQuickFolderListModel::setShowDirsFirst(bool on)
{
Q_D(QQuickFolderListModel);
d->fileInfoThread.setShowDirsFirst(on);
d->showDirsFirst = on;
}
/*!
\qmlproperty bool FolderListModel::showDotAndDotDot
If true, the "." and ".." directories are included in the model; otherwise
they are excluded.
By default, this property is false.
\sa showDirs
*/
bool QQuickFolderListModel::showDotAndDotDot() const
{
Q_D(const QQuickFolderListModel);
return d->showDotAndDotDot;
}
void QQuickFolderListModel::setShowDotAndDotDot(bool on)
{
Q_D(QQuickFolderListModel);
if (on != d->showDotAndDotDot) {
d->fileInfoThread.setShowDotAndDotDot(on);
d->showDotAndDotDot = on;
}
}
/*!
\qmlproperty bool FolderListModel::showHidden
\since 5.2
If true, hidden files and directories are included in the model; otherwise
they are excluded.
By default, this property is false.
*/
bool QQuickFolderListModel::showHidden() const
{
Q_D(const QQuickFolderListModel);
return d->showHidden;
}
void QQuickFolderListModel::setShowHidden(bool on)
{
Q_D(QQuickFolderListModel);
if (on != d->showHidden) {
d->fileInfoThread.setShowHidden(on);
d->showHidden = on;
}
}
/*!
\qmlproperty bool FolderListModel::showOnlyReadable
If true, only readable files and directories are shown; otherwise all files
and directories are shown.
By default, this property is false.
\sa showDirs
*/
bool QQuickFolderListModel::showOnlyReadable() const
{
Q_D(const QQuickFolderListModel);
return d->showOnlyReadable;
}
void QQuickFolderListModel::setShowOnlyReadable(bool on)
{
Q_D(QQuickFolderListModel);
if (on != d->showOnlyReadable) {
d->fileInfoThread.setShowOnlyReadable(on);
d->showOnlyReadable = on;
}
}
/*!
* \qmlproperty bool FolderListModel::caseSensitive
* \since 5.7
*
* Use case sensitive pattern matching.
*
* By default, this property is true.
*
*/
bool QQuickFolderListModel::caseSensitive() const
{
Q_D(const QQuickFolderListModel);
return d->caseSensitive;
}
void QQuickFolderListModel::setCaseSensitive(bool on)
{
Q_D(QQuickFolderListModel);
if (on != d->caseSensitive) {
d->fileInfoThread.setCaseSensitive(on);
d->caseSensitive = on;
}
}
/*!
\qmlproperty enumeration FolderListModel::status
\since 5.11
This property holds the status of folder reading. It can be one of:
\list
\li FolderListModel.Null - no \a folder has been set
\li FolderListModel.Ready - the folder has been loaded
\li FolderListModel.Loading - the folder is currently being loaded
\endlist
Use this status to provide an update or respond to the status change in some way.
For example, you could:
\list
\li Trigger a state change:
\qml
State { name: 'loaded'; when: folderModel.status == FolderListModel.Ready }
\endqml
\li Implement an \c onStatusChanged signal handler:
\qml
FolderListModel {
id: folderModel
onStatusChanged: if (folderModel.status == FolderListModel.Ready) console.log('Loaded')
}
\endqml
\li Bind to the status value:
\qml
Text { text: folderModel.status == FolderListModel.Ready ? 'Loaded' : 'Not loaded' }
\endqml
\endlist
*/
QQuickFolderListModel::Status QQuickFolderListModel::status() const
{
Q_D(const QQuickFolderListModel);
return d->status;
}
/*!
\qmlproperty bool FolderListModel::sortCaseSensitive
\since 5.12
If set to \c true, the sort is case sensitive. This property is \c true by default.
*/
bool QQuickFolderListModel::sortCaseSensitive() const
{
Q_D(const QQuickFolderListModel);
return d->sortCaseSensitive;
}
void QQuickFolderListModel::setSortCaseSensitive(bool on)
{
Q_D(QQuickFolderListModel);
if (on != d->sortCaseSensitive) {
d->sortCaseSensitive = on;
d->updateSorting();
}
}
/*!
\qmlmethod var FolderListModel::get(int index, string property)
Returns the folder \a property for the given \a index. The following properties
are available:
\list
\li \c fileName
\li \c filePath
\li \c fileURL (since Qt 5.2; deprecated since Qt 5.15)
\li \c fileUrl (since Qt 5.15)
\li \c fileBaseName
\li \c fileSuffix
\li \c fileSize
\li \c fileModified
\li \c fileAccessed
\li \c fileIsDir
\endlist
*/
QVariant QQuickFolderListModel::get(int idx, const QString &property) const
{
int role = roleFromString(property);
if (role >= 0 && idx >= 0)
return data(index(idx, 0), role);
else
return QVariant();
}
/*!
\qmlmethod int FolderListModel::indexOf(url file)
\since 5.6
Returns the index of the given \a file URL if the model contains it,
or -1 if not.
*/
int QQuickFolderListModel::indexOf(const QUrl &file) const
{
Q_D(const QQuickFolderListModel);
FileProperty toFind(QFileInfo(file.toLocalFile()));
return d->data.indexOf(toFind);
}
#include "moc_qquickfolderlistmodel.cpp"
//![code]
QT_END_NAMESPACE