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Diffstat (limited to 'src/widgets/dialogs/qfilesystemmodel.cpp')
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diff --git a/src/widgets/dialogs/qfilesystemmodel.cpp b/src/widgets/dialogs/qfilesystemmodel.cpp new file mode 100644 index 0000000000..ff4410db97 --- /dev/null +++ b/src/widgets/dialogs/qfilesystemmodel.cpp @@ -0,0 +1,2029 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qfilesystemmodel_p.h" +#include "qfilesystemmodel.h" +#include <qlocale.h> +#include <qmime.h> +#include <qurl.h> +#include <qdebug.h> +#include <qmessagebox.h> +#include <qapplication.h> + +#ifdef Q_OS_WIN +#include <qt_windows.h> +#endif +#ifdef Q_OS_WIN32 +#include <QtCore/QVarLengthArray> +#endif + +QT_BEGIN_NAMESPACE + +#ifndef QT_NO_FILESYSTEMMODEL + +/*! + \enum QFileSystemModel::Roles + \value FileIconRole + \value FilePathRole + \value FileNameRole + \value FilePermissions +*/ + +/*! + \class QFileSystemModel + \since 4.4 + + \brief The QFileSystemModel class provides a data model for the local filesystem. + + \ingroup model-view + + This class provides access to the local filesystem, providing functions + for renaming and removing files and directories, and for creating new + directories. In the simplest case, it can be used with a suitable display + widget as part of a browser or filter. + + QFileSystemModel can be accessed using the standard interface provided by + QAbstractItemModel, but it also provides some convenience functions that are + specific to a directory model. + The fileInfo(), isDir(), name(), and path() functions provide information + about the underlying files and directories related to items in the model. + Directories can be created and removed using mkdir(), rmdir(). + + \note QFileSystemModel requires an instance of a GUI application. + + \section1 Example Usage + + A directory model that displays the contents of a default directory + is usually constructed with a parent object: + + \snippet doc/src/snippets/shareddirmodel/main.cpp 2 + + A tree view can be used to display the contents of the model + + \snippet doc/src/snippets/shareddirmodel/main.cpp 4 + + and the contents of a particular directory can be displayed by + setting the tree view's root index: + + \snippet doc/src/snippets/shareddirmodel/main.cpp 7 + + The view's root index can be used to control how much of a + hierarchical model is displayed. QDirModel provides a convenience + function that returns a suitable model index for a path to a + directory within the model. + + \section1 Caching and Performance + + QFileSystemModel will not fetch any files or directories until setRootPath() + is called. This will prevent any unnecessary querying on the file system + until that point such as listing the drives on Windows. + + Unlike QDirModel, QFileSystemModel uses a separate thread to populate + itself so it will not cause the main thread to hang as the file system + is being queried. Calls to rowCount() will return 0 until the model + populates a directory. + + QFileSystemModel keeps a cache with file information. The cache is + automatically kept up to date using the QFileSystemWatcher. + + \sa {Model Classes} +*/ + +/*! + \fn bool QFileSystemModel::rmdir(const QModelIndex &index) const + + Removes the directory corresponding to the model item \a index in the + file system model and \bold{deletes the corresponding directory from the + file system}, returning true if successful. If the directory cannot be + removed, false is returned. + + \warning This function deletes directories from the file system; it does + \bold{not} move them to a location where they can be recovered. + + \sa remove() +*/ + +/*! + \fn QIcon QFileSystemModel::fileName(const QModelIndex &index) const + + Returns the file name for the item stored in the model under the given + \a index. +*/ + +/*! + \fn QIcon QFileSystemModel::fileIcon(const QModelIndex &index) const + + Returns the icon for the item stored in the model under the given + \a index. +*/ + +/*! + \fn QFileInfo QFileSystemModel::fileInfo(const QModelIndex &index) const + + Returns the QFileInfo for the item stored in the model under the given + \a index. +*/ + +/*! + \fn void QFileSystemModel::rootPathChanged(const QString &newPath); + + This signal is emitted whenever the root path has been changed to a \a newPath. +*/ + +/*! + \fn void QFileSystemModel::fileRenamed(const QString &path, const QString &oldName, const QString &newName) + + This signal is emitted whenever a file with the \a oldName is successfully + renamed to \a newName. The file is located in in the directory \a path. +*/ + +/*! + \since 4.7 + \fn void QFileSystemModel::directoryLoaded(const QString &path) + + This signal is emitted when the gatherer thread has finished to load the \a path. + +*/ + +/*! + \fn bool QFileSystemModel::remove(const QModelIndex &index) const + + Removes the model item \a index from the file system model and \bold{deletes the + corresponding file from the file system}, returning true if successful. If the + item cannot be removed, false is returned. + + \warning This function deletes files from the file system; it does \bold{not} + move them to a location where they can be recovered. + + \sa rmdir() +*/ + +bool QFileSystemModel::remove(const QModelIndex &aindex) const +{ + //### TODO optim + QString path = filePath(aindex); + QFileSystemModelPrivate * d = const_cast<QFileSystemModelPrivate*>(d_func()); + d->fileInfoGatherer.removePath(path); + QDirIterator it(path, + QDir::AllDirs | QDir:: Files | QDir::NoDotAndDotDot, + QDirIterator::Subdirectories); + QStringList children; + while (it.hasNext()) + children.prepend(it.next()); + children.append(path); + + bool error = false; + for (int i = 0; i < children.count(); ++i) { + QFileInfo info(children.at(i)); + QModelIndex modelIndex = index(children.at(i)); + if (info.isDir()) { + QDir dir; + if (children.at(i) != path) + error |= remove(modelIndex); + error |= rmdir(modelIndex); + } else { + error |= QFile::remove(filePath(modelIndex)); + } + } + return error; +} + +/*! + Constructs a file system model with the given \a parent. +*/ +QFileSystemModel::QFileSystemModel(QObject *parent) + : QAbstractItemModel(*new QFileSystemModelPrivate, parent) +{ + Q_D(QFileSystemModel); + d->init(); +} + +/*! + \internal +*/ +QFileSystemModel::QFileSystemModel(QFileSystemModelPrivate &dd, QObject *parent) + : QAbstractItemModel(dd, parent) +{ + Q_D(QFileSystemModel); + d->init(); +} + +/*! + Destroys this file system model. +*/ +QFileSystemModel::~QFileSystemModel() +{ +} + +/*! + \reimp +*/ +QModelIndex QFileSystemModel::index(int row, int column, const QModelIndex &parent) const +{ + Q_D(const QFileSystemModel); + if (row < 0 || column < 0 || row >= rowCount(parent) || column >= columnCount(parent)) + return QModelIndex(); + + // get the parent node + QFileSystemModelPrivate::QFileSystemNode *parentNode = (d->indexValid(parent) ? d->node(parent) : + const_cast<QFileSystemModelPrivate::QFileSystemNode*>(&d->root)); + Q_ASSERT(parentNode); + + // now get the internal pointer for the index + QString childName = parentNode->visibleChildren[d->translateVisibleLocation(parentNode, row)]; + const QFileSystemModelPrivate::QFileSystemNode *indexNode = parentNode->children.value(childName); + Q_ASSERT(indexNode); + + return createIndex(row, column, const_cast<QFileSystemModelPrivate::QFileSystemNode*>(indexNode)); +} + +/*! + \overload + + Returns the model item index for the given \a path and \a column. +*/ +QModelIndex QFileSystemModel::index(const QString &path, int column) const +{ + Q_D(const QFileSystemModel); + QFileSystemModelPrivate::QFileSystemNode *node = d->node(path, false); + QModelIndex idx = d->index(node); + if (idx.column() != column) + idx = idx.sibling(idx.row(), column); + return idx; +} + +/*! + \internal + + Return the QFileSystemNode that goes to index. + */ +QFileSystemModelPrivate::QFileSystemNode *QFileSystemModelPrivate::node(const QModelIndex &index) const +{ + if (!index.isValid()) + return const_cast<QFileSystemNode*>(&root); + QFileSystemModelPrivate::QFileSystemNode *indexNode = static_cast<QFileSystemModelPrivate::QFileSystemNode*>(index.internalPointer()); + Q_ASSERT(indexNode); + return indexNode; +} + +#ifdef Q_OS_WIN32 +static QString qt_GetLongPathName(const QString &strShortPath) +{ + if (strShortPath.isEmpty() + || strShortPath == QLatin1String(".") || strShortPath == QLatin1String("..")) + return strShortPath; + if (strShortPath.length() == 2 && strShortPath.endsWith(QLatin1Char(':'))) + return strShortPath.toUpper(); + const QString absPath = QDir(strShortPath).absolutePath(); + if (absPath.startsWith(QLatin1String("//")) + || absPath.startsWith(QLatin1String("\\\\"))) // unc + return QDir::fromNativeSeparators(absPath); + if (absPath.startsWith(QLatin1Char('/'))) + return QString(); + const QString inputString = QLatin1String("\\\\?\\") + QDir::toNativeSeparators(absPath); + QVarLengthArray<TCHAR, MAX_PATH> buffer(MAX_PATH); + DWORD result = ::GetLongPathName((wchar_t*)inputString.utf16(), + buffer.data(), + buffer.size()); + if (result > DWORD(buffer.size())) { + buffer.resize(result); + result = ::GetLongPathName((wchar_t*)inputString.utf16(), + buffer.data(), + buffer.size()); + } + if (result > 4) { + QString longPath = QString::fromWCharArray(buffer.data() + 4); // ignoring prefix + longPath[0] = longPath.at(0).toUpper(); // capital drive letters + return QDir::fromNativeSeparators(longPath); + } else { + return QDir::fromNativeSeparators(strShortPath); + } +} +#endif + +/*! + \internal + + Given a path return the matching QFileSystemNode or &root if invalid +*/ +QFileSystemModelPrivate::QFileSystemNode *QFileSystemModelPrivate::node(const QString &path, bool fetch) const +{ + Q_Q(const QFileSystemModel); + Q_UNUSED(q); + if (path.isEmpty() || path == myComputer() || path.startsWith(QLatin1Char(':'))) + return const_cast<QFileSystemModelPrivate::QFileSystemNode*>(&root); + + // Construct the nodes up to the new root path if they need to be built + QString absolutePath; +#ifdef Q_OS_WIN32 + QString longPath = qt_GetLongPathName(path); +#else + QString longPath = path; +#endif + if (longPath == rootDir.path()) + absolutePath = rootDir.absolutePath(); + else + absolutePath = QDir(longPath).absolutePath(); + + // ### TODO can we use bool QAbstractFileEngine::caseSensitive() const? + QStringList pathElements = absolutePath.split(QLatin1Char('/'), QString::SkipEmptyParts); + if ((pathElements.isEmpty()) +#if (!defined(Q_OS_WIN) || defined(Q_OS_WINCE)) && !defined(Q_OS_SYMBIAN) + && QDir::fromNativeSeparators(longPath) != QLatin1String("/") +#endif + ) + return const_cast<QFileSystemModelPrivate::QFileSystemNode*>(&root); + QModelIndex index = QModelIndex(); // start with "My Computer" +#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) + if (absolutePath.startsWith(QLatin1String("//"))) { // UNC path + QString host = QLatin1String("\\\\") + pathElements.first(); + if (absolutePath == QDir::fromNativeSeparators(host)) + absolutePath.append(QLatin1Char('/')); + if (longPath.endsWith(QLatin1Char('/')) && !absolutePath.endsWith(QLatin1Char('/'))) + absolutePath.append(QLatin1Char('/')); + int r = 0; + QFileSystemModelPrivate::QFileSystemNode *rootNode = const_cast<QFileSystemModelPrivate::QFileSystemNode*>(&root); + if (!root.children.contains(host.toLower())) { + if (pathElements.count() == 1 && !absolutePath.endsWith(QLatin1Char('/'))) + return rootNode; + QFileInfo info(host); + if (!info.exists()) + return rootNode; + QFileSystemModelPrivate *p = const_cast<QFileSystemModelPrivate*>(this); + p->addNode(rootNode, host,info); + p->addVisibleFiles(rootNode, QStringList(host)); + } + r = rootNode->visibleLocation(host); + r = translateVisibleLocation(rootNode, r); + index = q->index(r, 0, QModelIndex()); + pathElements.pop_front(); + } else +#endif + +#if (defined(Q_OS_WIN) && !defined(Q_OS_WINCE)) || defined(Q_OS_SYMBIAN) + { + if (!pathElements.at(0).contains(QLatin1String(":"))) { + // The reason we express it like this instead of with anonymous, temporary + // variables, is to workaround a compiler crash with Q_CC_NOKIAX86. + QString rootPath = QDir(longPath).rootPath(); + pathElements.prepend(rootPath); + } + if (pathElements.at(0).endsWith(QLatin1Char('/'))) + pathElements[0].chop(1); + } +#else + // add the "/" item, since it is a valid path element on Unix + if (absolutePath[0] == QLatin1Char('/')) + pathElements.prepend(QLatin1String("/")); +#endif + + QFileSystemModelPrivate::QFileSystemNode *parent = node(index); + + for (int i = 0; i < pathElements.count(); ++i) { + QString element = pathElements.at(i); +#ifdef Q_OS_WIN + // On Windows, "filename......." and "filename" are equivalent Task #133928 + while (element.endsWith(QLatin1Char('.'))) + element.chop(1); +#endif + bool alreadyExisted = parent->children.contains(element); + + // we couldn't find the path element, we create a new node since we + // _know_ that the path is valid + if (alreadyExisted) { + if ((parent->children.count() == 0) + || (parent->caseSensitive() + && parent->children.value(element)->fileName != element) + || (!parent->caseSensitive() + && parent->children.value(element)->fileName.toLower() != element.toLower())) + alreadyExisted = false; + } + + QFileSystemModelPrivate::QFileSystemNode *node; + if (!alreadyExisted) { + // Someone might call ::index("file://cookie/monster/doesn't/like/veggies"), + // a path that doesn't exists, I.E. don't blindly create directories. + QFileInfo info(absolutePath); + if (!info.exists()) + return const_cast<QFileSystemModelPrivate::QFileSystemNode*>(&root); + QFileSystemModelPrivate *p = const_cast<QFileSystemModelPrivate*>(this); + node = p->addNode(parent, element,info); +#ifndef QT_NO_FILESYSTEMWATCHER + node->populate(fileInfoGatherer.getInfo(info)); +#endif + } else { + node = parent->children.value(element); + } + + Q_ASSERT(node); + if (!node->isVisible) { + // It has been filtered out + if (alreadyExisted && node->hasInformation() && !fetch) + return const_cast<QFileSystemModelPrivate::QFileSystemNode*>(&root); + + QFileSystemModelPrivate *p = const_cast<QFileSystemModelPrivate*>(this); + p->addVisibleFiles(parent, QStringList(element)); + if (!p->bypassFilters.contains(node)) + p->bypassFilters[node] = 1; + QString dir = q->filePath(this->index(parent)); + if (!node->hasInformation() && fetch) { + Fetching f; + f.dir = dir; + f.file = element; + f.node = node; + p->toFetch.append(f); + p->fetchingTimer.start(0, const_cast<QFileSystemModel*>(q)); + } + } + parent = node; + } + + return parent; +} + +/*! + \reimp +*/ +void QFileSystemModel::timerEvent(QTimerEvent *event) +{ + Q_D(QFileSystemModel); + if (event->timerId() == d->fetchingTimer.timerId()) { + d->fetchingTimer.stop(); +#ifndef QT_NO_FILESYSTEMWATCHER + for (int i = 0; i < d->toFetch.count(); ++i) { + const QFileSystemModelPrivate::QFileSystemNode *node = d->toFetch.at(i).node; + if (!node->hasInformation()) { + d->fileInfoGatherer.fetchExtendedInformation(d->toFetch.at(i).dir, + QStringList(d->toFetch.at(i).file)); + } else { + // qDebug() << "yah!, you saved a little gerbil soul"; + } + } +#endif + d->toFetch.clear(); + } +} + +/*! + Returns true if the model item \a index represents a directory; + otherwise returns false. +*/ +bool QFileSystemModel::isDir(const QModelIndex &index) const +{ + // This function is for public usage only because it could create a file info + Q_D(const QFileSystemModel); + if (!index.isValid()) + return true; + QFileSystemModelPrivate::QFileSystemNode *n = d->node(index); + if (n->hasInformation()) + return n->isDir(); + return fileInfo(index).isDir(); +} + +/*! + Returns the size in bytes of \a index. If the file does not exist, 0 is returned. + */ +qint64 QFileSystemModel::size(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + if (!index.isValid()) + return 0; + return d->node(index)->size(); +} + +/*! + Returns the type of file \a index such as "Directory" or "JPEG file". + */ +QString QFileSystemModel::type(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + if (!index.isValid()) + return QString(); + return d->node(index)->type(); +} + +/*! + Returns the date and time when \a index was last modified. + */ +QDateTime QFileSystemModel::lastModified(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + if (!index.isValid()) + return QDateTime(); + return d->node(index)->lastModified(); +} + +/*! + \reimp +*/ +QModelIndex QFileSystemModel::parent(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + if (!d->indexValid(index)) + return QModelIndex(); + + QFileSystemModelPrivate::QFileSystemNode *indexNode = d->node(index); + Q_ASSERT(indexNode != 0); + QFileSystemModelPrivate::QFileSystemNode *parentNode = (indexNode ? indexNode->parent : 0); + if (parentNode == 0 || parentNode == &d->root) + return QModelIndex(); + + // get the parent's row + QFileSystemModelPrivate::QFileSystemNode *grandParentNode = parentNode->parent; + Q_ASSERT(grandParentNode->children.contains(parentNode->fileName)); + int visualRow = d->translateVisibleLocation(grandParentNode, grandParentNode->visibleLocation(grandParentNode->children.value(parentNode->fileName)->fileName)); + if (visualRow == -1) + return QModelIndex(); + return createIndex(visualRow, 0, parentNode); +} + +/* + \internal + + return the index for node +*/ +QModelIndex QFileSystemModelPrivate::index(const QFileSystemModelPrivate::QFileSystemNode *node) const +{ + Q_Q(const QFileSystemModel); + QFileSystemModelPrivate::QFileSystemNode *parentNode = (node ? node->parent : 0); + if (node == &root || !parentNode) + return QModelIndex(); + + // get the parent's row + Q_ASSERT(node); + if (!node->isVisible) + return QModelIndex(); + + int visualRow = translateVisibleLocation(parentNode, parentNode->visibleLocation(node->fileName)); + return q->createIndex(visualRow, 0, const_cast<QFileSystemNode*>(node)); +} + +/*! + \reimp +*/ +bool QFileSystemModel::hasChildren(const QModelIndex &parent) const +{ + Q_D(const QFileSystemModel); + if (parent.column() > 0) + return false; + + if (!parent.isValid()) // drives + return true; + + const QFileSystemModelPrivate::QFileSystemNode *indexNode = d->node(parent); + Q_ASSERT(indexNode); + return (indexNode->isDir()); +} + +/*! + \reimp + */ +bool QFileSystemModel::canFetchMore(const QModelIndex &parent) const +{ + Q_D(const QFileSystemModel); + const QFileSystemModelPrivate::QFileSystemNode *indexNode = d->node(parent); + return (!indexNode->populatedChildren); +} + +/*! + \reimp + */ +void QFileSystemModel::fetchMore(const QModelIndex &parent) +{ + Q_D(QFileSystemModel); + if (!d->setRootPath) + return; + QFileSystemModelPrivate::QFileSystemNode *indexNode = d->node(parent); + if (indexNode->populatedChildren) + return; + indexNode->populatedChildren = true; + d->fileInfoGatherer.list(filePath(parent)); +} + +/*! + \reimp +*/ +int QFileSystemModel::rowCount(const QModelIndex &parent) const +{ + Q_D(const QFileSystemModel); + if (parent.column() > 0) + return 0; + + if (!parent.isValid()) + return d->root.visibleChildren.count(); + + const QFileSystemModelPrivate::QFileSystemNode *parentNode = d->node(parent); + return parentNode->visibleChildren.count(); +} + +/*! + \reimp +*/ +int QFileSystemModel::columnCount(const QModelIndex &parent) const +{ + return (parent.column() > 0) ? 0 : 4; +} + +/*! + Returns the data stored under the given \a role for the item "My Computer". + + \sa Qt::ItemDataRole + */ +QVariant QFileSystemModel::myComputer(int role) const +{ + Q_D(const QFileSystemModel); + switch (role) { + case Qt::DisplayRole: + return d->myComputer(); + case Qt::DecorationRole: + return d->fileInfoGatherer.iconProvider()->icon(QFileIconProvider::Computer); + } + return QVariant(); +} + +/*! + \reimp +*/ +QVariant QFileSystemModel::data(const QModelIndex &index, int role) const +{ + Q_D(const QFileSystemModel); + if (!index.isValid() || index.model() != this) + return QVariant(); + + switch (role) { + case Qt::EditRole: + case Qt::DisplayRole: + switch (index.column()) { + case 0: return d->displayName(index); + case 1: return d->size(index); + case 2: return d->type(index); + case 3: return d->time(index); + default: + qWarning("data: invalid display value column %d", index.column()); + break; + } + break; + case FilePathRole: + return filePath(index); + case FileNameRole: + return d->name(index); + case Qt::DecorationRole: + if (index.column() == 0) { + QIcon icon = d->icon(index); + if (icon.isNull()) { + if (d->node(index)->isDir()) + icon = d->fileInfoGatherer.iconProvider()->icon(QFileIconProvider::Folder); + else + icon = d->fileInfoGatherer.iconProvider()->icon(QFileIconProvider::File); + } + return icon; + } + break; + case Qt::TextAlignmentRole: + if (index.column() == 1) + return Qt::AlignRight; + break; + case FilePermissions: + int p = permissions(index); + return p; + } + + return QVariant(); +} + +/*! + \internal +*/ +QString QFileSystemModelPrivate::size(const QModelIndex &index) const +{ + if (!index.isValid()) + return QString(); + const QFileSystemNode *n = node(index); + if (n->isDir()) { +#ifdef Q_OS_MAC + return QLatin1String("--"); +#else + return QLatin1String(""); +#endif + // Windows - "" + // OS X - "--" + // Konqueror - "4 KB" + // Nautilus - "9 items" (the number of children) + } + return size(n->size()); +} + +QString QFileSystemModelPrivate::size(qint64 bytes) +{ + // According to the Si standard KB is 1000 bytes, KiB is 1024 + // but on windows sizes are calculated by dividing by 1024 so we do what they do. + const qint64 kb = 1024; + const qint64 mb = 1024 * kb; + const qint64 gb = 1024 * mb; + const qint64 tb = 1024 * gb; + if (bytes >= tb) + return QFileSystemModel::tr("%1 TB").arg(QLocale().toString(qreal(bytes) / tb, 'f', 3)); + if (bytes >= gb) + return QFileSystemModel::tr("%1 GB").arg(QLocale().toString(qreal(bytes) / gb, 'f', 2)); + if (bytes >= mb) + return QFileSystemModel::tr("%1 MB").arg(QLocale().toString(qreal(bytes) / mb, 'f', 1)); + if (bytes >= kb) + return QFileSystemModel::tr("%1 KB").arg(QLocale().toString(bytes / kb)); + return QFileSystemModel::tr("%1 bytes").arg(QLocale().toString(bytes)); +} + +/*! + \internal +*/ +QString QFileSystemModelPrivate::time(const QModelIndex &index) const +{ + if (!index.isValid()) + return QString(); +#ifndef QT_NO_DATESTRING + return node(index)->lastModified().toString(Qt::SystemLocaleDate); +#else + Q_UNUSED(index); + return QString(); +#endif +} + +/* + \internal +*/ +QString QFileSystemModelPrivate::type(const QModelIndex &index) const +{ + if (!index.isValid()) + return QString(); + return node(index)->type(); +} + +/*! + \internal +*/ +QString QFileSystemModelPrivate::name(const QModelIndex &index) const +{ + if (!index.isValid()) + return QString(); + QFileSystemNode *dirNode = node(index); + if (dirNode->isSymLink() && fileInfoGatherer.resolveSymlinks()) { + QString fullPath = QDir::fromNativeSeparators(filePath(index)); + if (resolvedSymLinks.contains(fullPath)) + return resolvedSymLinks[fullPath]; + } + return dirNode->fileName; +} + +/*! + \internal +*/ +QString QFileSystemModelPrivate::displayName(const QModelIndex &index) const +{ +#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) + QFileSystemNode *dirNode = node(index); + if (!dirNode->volumeName.isNull()) + return dirNode->volumeName + QLatin1String(" (") + name(index) + QLatin1Char(')'); +#endif + return name(index); +} + +/*! + \internal +*/ +QIcon QFileSystemModelPrivate::icon(const QModelIndex &index) const +{ + if (!index.isValid()) + return QIcon(); + return node(index)->icon(); +} + +/*! + \reimp +*/ +bool QFileSystemModel::setData(const QModelIndex &idx, const QVariant &value, int role) +{ + Q_D(QFileSystemModel); + if (!idx.isValid() + || idx.column() != 0 + || role != Qt::EditRole + || (flags(idx) & Qt::ItemIsEditable) == 0) { + return false; + } + + QString newName = value.toString(); + QString oldName = idx.data().toString(); + if (newName == idx.data().toString()) + return true; + + if (newName.isEmpty() + || newName.contains(QDir::separator()) + || !QDir(filePath(parent(idx))).rename(oldName, newName)) { +#ifndef QT_NO_MESSAGEBOX + QMessageBox::information(0, QFileSystemModel::tr("Invalid filename"), + QFileSystemModel::tr("<b>The name \"%1\" can not be used.</b><p>Try using another name, with fewer characters or no punctuations marks.") + .arg(newName), + QMessageBox::Ok); +#endif // QT_NO_MESSAGEBOX + return false; + } else { + /* + *After re-naming something we don't want the selection to change* + - can't remove rows and later insert + - can't quickly remove and insert + - index pointer can't change because treeview doesn't use persistant index's + + - if this get any more complicated think of changing it to just + use layoutChanged + */ + + QFileSystemModelPrivate::QFileSystemNode *indexNode = d->node(idx); + QFileSystemModelPrivate::QFileSystemNode *parentNode = indexNode->parent; + int visibleLocation = parentNode->visibleLocation(parentNode->children.value(indexNode->fileName)->fileName); + + d->addNode(parentNode, newName,indexNode->info->fileInfo()); + parentNode->visibleChildren.removeAt(visibleLocation); + QFileSystemModelPrivate::QFileSystemNode * oldValue = parentNode->children.value(oldName); + parentNode->children[newName] = oldValue; + QFileInfo info(d->rootDir, newName); + oldValue->fileName = newName; + oldValue->parent = parentNode; + oldValue->populate(d->fileInfoGatherer.getInfo(info)); + oldValue->isVisible = true; + + parentNode->children.remove(oldName); + parentNode->visibleChildren.insert(visibleLocation, newName); + + d->delayedSort(); + emit fileRenamed(filePath(idx.parent()), oldName, newName); + } + return true; +} + +/*! + \reimp +*/ +QVariant QFileSystemModel::headerData(int section, Qt::Orientation orientation, int role) const +{ + switch (role) { + case Qt::DecorationRole: + if (section == 0) { + // ### TODO oh man this is ugly and doesn't even work all the way! + // it is still 2 pixels off + QImage pixmap(16, 1, QImage::Format_Mono); + pixmap.fill(0); + pixmap.setAlphaChannel(pixmap.createAlphaMask()); + return pixmap; + } + break; + case Qt::TextAlignmentRole: + return Qt::AlignLeft; + } + + if (orientation != Qt::Horizontal || role != Qt::DisplayRole) + return QAbstractItemModel::headerData(section, orientation, role); + + QString returnValue; + switch (section) { + case 0: returnValue = tr("Name"); + break; + case 1: returnValue = tr("Size"); + break; + case 2: returnValue = +#ifdef Q_OS_MAC + tr("Kind", "Match OS X Finder"); +#else + tr("Type", "All other platforms"); +#endif + break; + // Windows - Type + // OS X - Kind + // Konqueror - File Type + // Nautilus - Type + case 3: returnValue = tr("Date Modified"); + break; + default: return QVariant(); + } + return returnValue; +} + +/*! + \reimp +*/ +Qt::ItemFlags QFileSystemModel::flags(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + Qt::ItemFlags flags = QAbstractItemModel::flags(index); + if (!index.isValid()) + return flags; + + QFileSystemModelPrivate::QFileSystemNode *indexNode = d->node(index); + if (d->nameFilterDisables && !d->passNameFilters(indexNode)) { + flags &= ~Qt::ItemIsEnabled; + // ### TODO you shouldn't be able to set this as the current item, task 119433 + return flags; + } + + flags |= Qt::ItemIsDragEnabled; + if (d->readOnly) + return flags; + if ((index.column() == 0) && indexNode->permissions() & QFile::WriteUser) { + flags |= Qt::ItemIsEditable; + if (indexNode->isDir()) + flags |= Qt::ItemIsDropEnabled; + } + return flags; +} + +/*! + \internal +*/ +void QFileSystemModelPrivate::_q_performDelayedSort() +{ + Q_Q(QFileSystemModel); + q->sort(sortColumn, sortOrder); +} + +static inline QChar getNextChar(const QString &s, int location) +{ + return (location < s.length()) ? s.at(location) : QChar(); +} + +/*! + Natural number sort, skips spaces. + + Examples: + 1, 2, 10, 55, 100 + 01.jpg, 2.jpg, 10.jpg + + Note on the algorithm: + Only as many characters as necessary are looked at and at most they all + are looked at once. + + Slower then QString::compare() (of course) + */ +int QFileSystemModelPrivate::naturalCompare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs) +{ + for (int l1 = 0, l2 = 0; l1 <= s1.count() && l2 <= s2.count(); ++l1, ++l2) { + // skip spaces, tabs and 0's + QChar c1 = getNextChar(s1, l1); + while (c1.isSpace()) + c1 = getNextChar(s1, ++l1); + QChar c2 = getNextChar(s2, l2); + while (c2.isSpace()) + c2 = getNextChar(s2, ++l2); + + if (c1.isDigit() && c2.isDigit()) { + while (c1.digitValue() == 0) + c1 = getNextChar(s1, ++l1); + while (c2.digitValue() == 0) + c2 = getNextChar(s2, ++l2); + + int lookAheadLocation1 = l1; + int lookAheadLocation2 = l2; + int currentReturnValue = 0; + // find the last digit, setting currentReturnValue as we go if it isn't equal + for ( + QChar lookAhead1 = c1, lookAhead2 = c2; + (lookAheadLocation1 <= s1.length() && lookAheadLocation2 <= s2.length()); + lookAhead1 = getNextChar(s1, ++lookAheadLocation1), + lookAhead2 = getNextChar(s2, ++lookAheadLocation2) + ) { + bool is1ADigit = !lookAhead1.isNull() && lookAhead1.isDigit(); + bool is2ADigit = !lookAhead2.isNull() && lookAhead2.isDigit(); + if (!is1ADigit && !is2ADigit) + break; + if (!is1ADigit) + return -1; + if (!is2ADigit) + return 1; + if (currentReturnValue == 0) { + if (lookAhead1 < lookAhead2) { + currentReturnValue = -1; + } else if (lookAhead1 > lookAhead2) { + currentReturnValue = 1; + } + } + } + if (currentReturnValue != 0) + return currentReturnValue; + } + + if (cs == Qt::CaseInsensitive) { + if (!c1.isLower()) c1 = c1.toLower(); + if (!c2.isLower()) c2 = c2.toLower(); + } + int r = QString::localeAwareCompare(c1, c2); + if (r < 0) + return -1; + if (r > 0) + return 1; + } + // The two strings are the same (02 == 2) so fall back to the normal sort + return QString::compare(s1, s2, cs); +} + +/* + \internal + Helper functor used by sort() +*/ +class QFileSystemModelSorter +{ +public: + inline QFileSystemModelSorter(int column) : sortColumn(column) {} + + bool compareNodes(const QFileSystemModelPrivate::QFileSystemNode *l, + const QFileSystemModelPrivate::QFileSystemNode *r) const + { + switch (sortColumn) { + case 0: { +#ifndef Q_OS_MAC + // place directories before files + bool left = l->isDir(); + bool right = r->isDir(); + if (left ^ right) + return left; +#endif + return QFileSystemModelPrivate::naturalCompare(l->fileName, + r->fileName, Qt::CaseInsensitive) < 0; + } + case 1: + // Directories go first + if (l->isDir() && !r->isDir()) + return true; + return l->size() < r->size(); + case 2: + return l->type() < r->type(); + case 3: + return l->lastModified() < r->lastModified(); + } + Q_ASSERT(false); + return false; + } + + bool operator()(const QPair<QFileSystemModelPrivate::QFileSystemNode*, int> &l, + const QPair<QFileSystemModelPrivate::QFileSystemNode*, int> &r) const + { + return compareNodes(l.first, r.first); + } + + +private: + int sortColumn; +}; + +/* + \internal + + Sort all of the children of parent +*/ +void QFileSystemModelPrivate::sortChildren(int column, const QModelIndex &parent) +{ + Q_Q(QFileSystemModel); + QFileSystemModelPrivate::QFileSystemNode *indexNode = node(parent); + if (indexNode->children.count() == 0) + return; + + QList<QPair<QFileSystemModelPrivate::QFileSystemNode*, int> > values; + QHash<QString, QFileSystemNode *>::const_iterator iterator; + int i = 0; + for(iterator = indexNode->children.begin() ; iterator != indexNode->children.end() ; ++iterator) { + if (filtersAcceptsNode(iterator.value())) { + values.append(QPair<QFileSystemModelPrivate::QFileSystemNode*, int>((iterator.value()), i)); + } else { + iterator.value()->isVisible = false; + } + i++; + } + QFileSystemModelSorter ms(column); + qStableSort(values.begin(), values.end(), ms); + // First update the new visible list + indexNode->visibleChildren.clear(); + //No more dirty item we reset our internal dirty index + indexNode->dirtyChildrenIndex = -1; + for (int i = 0; i < values.count(); ++i) { + indexNode->visibleChildren.append(values.at(i).first->fileName); + values.at(i).first->isVisible = true; + } + + if (!disableRecursiveSort) { + for (int i = 0; i < q->rowCount(parent); ++i) { + const QModelIndex childIndex = q->index(i, 0, parent); + QFileSystemModelPrivate::QFileSystemNode *indexNode = node(childIndex); + //Only do a recursive sort on visible nodes + if (indexNode->isVisible) + sortChildren(column, childIndex); + } + } +} + +/*! + \reimp +*/ +void QFileSystemModel::sort(int column, Qt::SortOrder order) +{ + Q_D(QFileSystemModel); + if (d->sortOrder == order && d->sortColumn == column && !d->forceSort) + return; + + emit layoutAboutToBeChanged(); + QModelIndexList oldList = persistentIndexList(); + QList<QPair<QFileSystemModelPrivate::QFileSystemNode*, int> > oldNodes; + for (int i = 0; i < oldList.count(); ++i) { + QPair<QFileSystemModelPrivate::QFileSystemNode*, int> pair(d->node(oldList.at(i)), oldList.at(i).column()); + oldNodes.append(pair); + } + + if (!(d->sortColumn == column && d->sortOrder != order && !d->forceSort)) { + //we sort only from where we are, don't need to sort all the model + d->sortChildren(column, index(rootPath())); + d->sortColumn = column; + d->forceSort = false; + } + d->sortOrder = order; + + QModelIndexList newList; + for (int i = 0; i < oldNodes.count(); ++i) { + QModelIndex idx = d->index(oldNodes.at(i).first); + idx = idx.sibling(idx.row(), oldNodes.at(i).second); + newList.append(idx); + } + changePersistentIndexList(oldList, newList); + emit layoutChanged(); +} + +/*! + Returns a list of MIME types that can be used to describe a list of items + in the model. +*/ +QStringList QFileSystemModel::mimeTypes() const +{ + return QStringList(QLatin1String("text/uri-list")); +} + +/*! + Returns an object that contains a serialized description of the specified + \a indexes. The format used to describe the items corresponding to the + indexes is obtained from the mimeTypes() function. + + If the list of indexes is empty, 0 is returned rather than a serialized + empty list. +*/ +QMimeData *QFileSystemModel::mimeData(const QModelIndexList &indexes) const +{ + QList<QUrl> urls; + QList<QModelIndex>::const_iterator it = indexes.begin(); + for (; it != indexes.end(); ++it) + if ((*it).column() == 0) + urls << QUrl::fromLocalFile(filePath(*it)); + QMimeData *data = new QMimeData(); + data->setUrls(urls); + return data; +} + +/*! + Handles the \a data supplied by a drag and drop operation that ended with + the given \a action over the row in the model specified by the \a row and + \a column and by the \a parent index. + + \sa supportedDropActions() +*/ +bool QFileSystemModel::dropMimeData(const QMimeData *data, Qt::DropAction action, + int row, int column, const QModelIndex &parent) +{ + Q_UNUSED(row); + Q_UNUSED(column); + if (!parent.isValid() || isReadOnly()) + return false; + + bool success = true; + QString to = filePath(parent) + QDir::separator(); + + QList<QUrl> urls = data->urls(); + QList<QUrl>::const_iterator it = urls.constBegin(); + + switch (action) { + case Qt::CopyAction: + for (; it != urls.constEnd(); ++it) { + QString path = (*it).toLocalFile(); + success = QFile::copy(path, to + QFileInfo(path).fileName()) && success; + } + break; + case Qt::LinkAction: + for (; it != urls.constEnd(); ++it) { + QString path = (*it).toLocalFile(); + success = QFile::link(path, to + QFileInfo(path).fileName()) && success; + } + break; + case Qt::MoveAction: + for (; it != urls.constEnd(); ++it) { + QString path = (*it).toLocalFile(); + success = QFile::rename(path, to + QFileInfo(path).fileName()) && success; + } + break; + default: + return false; + } + + return success; +} + +/*! + \reimp +*/ +Qt::DropActions QFileSystemModel::supportedDropActions() const +{ + return Qt::CopyAction | Qt::MoveAction | Qt::LinkAction; +} + +/*! + Returns the path of the item stored in the model under the + \a index given. +*/ +QString QFileSystemModel::filePath(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + QString fullPath = d->filePath(index); + QFileSystemModelPrivate::QFileSystemNode *dirNode = d->node(index); + if (dirNode->isSymLink() && d->fileInfoGatherer.resolveSymlinks() + && d->resolvedSymLinks.contains(fullPath) + && dirNode->isDir()) { + QFileInfo resolvedInfo(fullPath); + resolvedInfo = resolvedInfo.canonicalFilePath(); + if (resolvedInfo.exists()) + return resolvedInfo.filePath(); + } + return fullPath; +} + +QString QFileSystemModelPrivate::filePath(const QModelIndex &index) const +{ + Q_Q(const QFileSystemModel); + Q_UNUSED(q); + if (!index.isValid()) + return QString(); + Q_ASSERT(index.model() == q); + + QStringList path; + QModelIndex idx = index; + while (idx.isValid()) { + QFileSystemModelPrivate::QFileSystemNode *dirNode = node(idx); + if (dirNode) + path.prepend(dirNode->fileName); + idx = idx.parent(); + } + QString fullPath = QDir::fromNativeSeparators(path.join(QDir::separator())); +#if !defined(Q_OS_WIN) || defined(Q_OS_WINCE) + if ((fullPath.length() > 2) && fullPath[0] == QLatin1Char('/') && fullPath[1] == QLatin1Char('/')) + fullPath = fullPath.mid(1); +#endif +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + if (fullPath.length() == 2 && fullPath.endsWith(QLatin1Char(':'))) + fullPath.append(QLatin1Char('/')); +#endif + return fullPath; +} + +/*! + Create a directory with the \a name in the \a parent model index. +*/ +QModelIndex QFileSystemModel::mkdir(const QModelIndex &parent, const QString &name) +{ + Q_D(QFileSystemModel); + if (!parent.isValid()) + return parent; + + QDir dir(filePath(parent)); + if (!dir.mkdir(name)) + return QModelIndex(); + QFileSystemModelPrivate::QFileSystemNode *parentNode = d->node(parent); + d->addNode(parentNode, name, QFileInfo()); + Q_ASSERT(parentNode->children.contains(name)); + QFileSystemModelPrivate::QFileSystemNode *node = parentNode->children[name]; + node->populate(d->fileInfoGatherer.getInfo(QFileInfo(dir.absolutePath() + QDir::separator() + name))); + d->addVisibleFiles(parentNode, QStringList(name)); + return d->index(node); +} + +/*! + Returns the complete OR-ed together combination of QFile::Permission for the \a index. + */ +QFile::Permissions QFileSystemModel::permissions(const QModelIndex &index) const +{ + Q_D(const QFileSystemModel); + QFile::Permissions p = d->node(index)->permissions(); + if (d->readOnly) { + p ^= (QFile::WriteOwner | QFile::WriteUser + | QFile::WriteGroup | QFile::WriteOther); + } + return p; +} + +/*! + Sets the directory that is being watched by the model to \a newPath by + installing a \l{QFileSystemWatcher}{file system watcher} on it. Any + changes to files and directories within this directory will be + reflected in the model. + + If the path is changed, the rootPathChanged() signal will be emitted. + + \note This function does not change the structure of the model or + modify the data available to views. In other words, the "root" of + the model is \e not changed to include only files and directories + within the directory specified by \a newPath in the file system. + */ +QModelIndex QFileSystemModel::setRootPath(const QString &newPath) +{ + Q_D(QFileSystemModel); +#ifdef Q_OS_WIN +#ifdef Q_OS_WIN32 + QString longNewPath = qt_GetLongPathName(newPath); +#else + QString longNewPath = QDir::fromNativeSeparators(newPath); +#endif +#else + QString longNewPath = newPath; +#endif + QDir newPathDir(longNewPath); + //we remove .. and . from the given path if exist + if (!newPath.isEmpty()) { + longNewPath = QDir::cleanPath(longNewPath); + newPathDir.setPath(longNewPath); + } + + d->setRootPath = true; + + //user don't ask for the root path ("") but the conversion failed + if (!newPath.isEmpty() && longNewPath.isEmpty()) + return d->index(rootPath()); + + if (d->rootDir.path() == longNewPath) + return d->index(rootPath()); + + bool showDrives = (longNewPath.isEmpty() || longNewPath == d->myComputer()); + if (!showDrives && !newPathDir.exists()) + return d->index(rootPath()); + + //We remove the watcher on the previous path + if (!rootPath().isEmpty() && rootPath() != QLatin1String(".")) { + //This remove the watcher for the old rootPath + d->fileInfoGatherer.removePath(rootPath()); + //This line "marks" the node as dirty, so the next fetchMore + //call on the path will ask the gatherer to install a watcher again + //But it doesn't re-fetch everything + d->node(rootPath())->populatedChildren = false; + } + + // We have a new valid root path + d->rootDir = newPathDir; + QModelIndex newRootIndex; + if (showDrives) { + // otherwise dir will become '.' + d->rootDir.setPath(QLatin1String("")); + } else { + newRootIndex = d->index(newPathDir.path()); + } + fetchMore(newRootIndex); + emit rootPathChanged(longNewPath); + d->forceSort = true; + d->delayedSort(); + return newRootIndex; +} + +/*! + The currently set root path + + \sa rootDirectory() +*/ +QString QFileSystemModel::rootPath() const +{ + Q_D(const QFileSystemModel); + return d->rootDir.path(); +} + +/*! + The currently set directory + + \sa rootPath() +*/ +QDir QFileSystemModel::rootDirectory() const +{ + Q_D(const QFileSystemModel); + QDir dir(d->rootDir); + dir.setNameFilters(nameFilters()); + dir.setFilter(filter()); + return dir; +} + +/*! + Sets the \a provider of file icons for the directory model. +*/ +void QFileSystemModel::setIconProvider(QFileIconProvider *provider) +{ + Q_D(QFileSystemModel); + d->fileInfoGatherer.setIconProvider(provider); + d->root.updateIcon(provider, QString()); +} + +/*! + Returns the file icon provider for this directory model. +*/ +QFileIconProvider *QFileSystemModel::iconProvider() const +{ + Q_D(const QFileSystemModel); + return d->fileInfoGatherer.iconProvider(); +} + +/*! + Sets the directory model's filter to that specified by \a filters. + + Note that the filter you set should always include the QDir::AllDirs enum value, + otherwise QFileSystemModel won't be able to read the directory structure. + + \sa QDir::Filters +*/ +void QFileSystemModel::setFilter(QDir::Filters filters) +{ + Q_D(QFileSystemModel); + if (d->filters == filters) + return; + d->filters = filters; + // CaseSensitivity might have changed + setNameFilters(nameFilters()); + d->forceSort = true; + d->delayedSort(); +} + +/*! + Returns the filter specified for the directory model. + + If a filter has not been set, the default filter is QDir::AllEntries | + QDir::NoDotAndDotDot | QDir::AllDirs. + + \sa QDir::Filters +*/ +QDir::Filters QFileSystemModel::filter() const +{ + Q_D(const QFileSystemModel); + return d->filters; +} + +/*! + \property QFileSystemModel::resolveSymlinks + \brief Whether the directory model should resolve symbolic links + + This is only relevant on operating systems that support symbolic links. + + By default, this property is false. +*/ +void QFileSystemModel::setResolveSymlinks(bool enable) +{ + Q_D(QFileSystemModel); + d->fileInfoGatherer.setResolveSymlinks(enable); +} + +bool QFileSystemModel::resolveSymlinks() const +{ + Q_D(const QFileSystemModel); + return d->fileInfoGatherer.resolveSymlinks(); +} + +/*! + \property QFileSystemModel::readOnly + \brief Whether the directory model allows writing to the file system + + If this property is set to false, the directory model will allow renaming, copying + and deleting of files and directories. + + This property is true by default +*/ +void QFileSystemModel::setReadOnly(bool enable) +{ + Q_D(QFileSystemModel); + d->readOnly = enable; +} + +bool QFileSystemModel::isReadOnly() const +{ + Q_D(const QFileSystemModel); + return d->readOnly; +} + +/*! + \property QFileSystemModel::nameFilterDisables + \brief Whether files that don't pass the name filter are hidden or disabled + + This property is true by default +*/ +void QFileSystemModel::setNameFilterDisables(bool enable) +{ + Q_D(QFileSystemModel); + if (d->nameFilterDisables == enable) + return; + d->nameFilterDisables = enable; + d->forceSort = true; + d->delayedSort(); +} + +bool QFileSystemModel::nameFilterDisables() const +{ + Q_D(const QFileSystemModel); + return d->nameFilterDisables; +} + +/*! + Sets the name \a filters to apply against the existing files. +*/ +void QFileSystemModel::setNameFilters(const QStringList &filters) +{ + // Prep the regexp's ahead of time +#ifndef QT_NO_REGEXP + Q_D(QFileSystemModel); + + if (!d->bypassFilters.isEmpty()) { + // update the bypass filter to only bypass the stuff that must be kept around + d->bypassFilters.clear(); + // We guarantee that rootPath will stick around + QPersistentModelIndex root(index(rootPath())); + QModelIndexList persistantList = persistentIndexList(); + for (int i = 0; i < persistantList.count(); ++i) { + QFileSystemModelPrivate::QFileSystemNode *node; + node = d->node(persistantList.at(i)); + while (node) { + if (d->bypassFilters.contains(node)) + break; + if (node->isDir()) + d->bypassFilters[node] = true; + node = node->parent; + } + } + } + + d->nameFilters.clear(); + const Qt::CaseSensitivity caseSensitive = + (filter() & QDir::CaseSensitive) ? Qt::CaseSensitive : Qt::CaseInsensitive; + for (int i = 0; i < filters.size(); ++i) { + d->nameFilters << QRegExp(filters.at(i), caseSensitive, QRegExp::Wildcard); + } + d->forceSort = true; + d->delayedSort(); +#endif +} + +/*! + Returns a list of filters applied to the names in the model. +*/ +QStringList QFileSystemModel::nameFilters() const +{ + Q_D(const QFileSystemModel); + QStringList filters; +#ifndef QT_NO_REGEXP + for (int i = 0; i < d->nameFilters.size(); ++i) { + filters << d->nameFilters.at(i).pattern(); + } +#endif + return filters; +} + +/*! + \reimp +*/ +bool QFileSystemModel::event(QEvent *event) +{ + Q_D(QFileSystemModel); + if (event->type() == QEvent::LanguageChange) { + d->root.retranslateStrings(d->fileInfoGatherer.iconProvider(), QString()); + return true; + } + return QAbstractItemModel::event(event); +} + +bool QFileSystemModel::rmdir(const QModelIndex &aindex) const +{ + QString path = filePath(aindex); + QFileSystemModelPrivate * d = const_cast<QFileSystemModelPrivate*>(d_func()); + d->fileInfoGatherer.removePath(path); + return QDir().rmdir(path); +} + +/*! + \internal + + Performed quick listing and see if any files have been added or removed, + then fetch more information on visible files. + */ +void QFileSystemModelPrivate::_q_directoryChanged(const QString &directory, const QStringList &files) +{ + QFileSystemModelPrivate::QFileSystemNode *parentNode = node(directory, false); + if (parentNode->children.count() == 0) + return; + QStringList toRemove; +#if defined(Q_OS_SYMBIAN) + // Filename case must be exact in qBinaryFind below, so create a list of all lowercase names. + QStringList newFiles; + for(int i = 0; i < files.size(); i++) { + newFiles << files.at(i).toLower(); + } +#else + QStringList newFiles = files; +#endif + qSort(newFiles.begin(), newFiles.end()); + QHash<QString, QFileSystemNode*>::const_iterator i = parentNode->children.constBegin(); + while (i != parentNode->children.constEnd()) { + QStringList::iterator iterator; + iterator = qBinaryFind(newFiles.begin(), newFiles.end(), +#if defined(Q_OS_SYMBIAN) + i.value()->fileName.toLower()); +#else + i.value()->fileName); +#endif + if (iterator == newFiles.end()) { + toRemove.append(i.value()->fileName); + } + ++i; + } + for (int i = 0 ; i < toRemove.count() ; ++i ) + removeNode(parentNode, toRemove[i]); +} + +/*! + \internal + + Adds a new file to the children of parentNode + + *WARNING* this will change the count of children +*/ +QFileSystemModelPrivate::QFileSystemNode* QFileSystemModelPrivate::addNode(QFileSystemNode *parentNode, const QString &fileName, const QFileInfo& info) +{ + // In the common case, itemLocation == count() so check there first + QFileSystemModelPrivate::QFileSystemNode *node = new QFileSystemModelPrivate::QFileSystemNode(fileName, parentNode); +#ifndef QT_NO_FILESYSTEMWATCHER + node->populate(info); +#endif +#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) + //The parentNode is "" so we are listing the drives + if (parentNode->fileName.isEmpty()) { + wchar_t name[MAX_PATH + 1]; + //GetVolumeInformation requires to add trailing backslash + const QString nodeName = fileName + QLatin1String("\\"); + BOOL success = ::GetVolumeInformation((wchar_t *)(nodeName.utf16()), + name, MAX_PATH + 1, NULL, 0, NULL, NULL, 0); + if (success && name[0]) + node->volumeName = QString::fromWCharArray(name); + } +#endif + parentNode->children.insert(fileName, node); + return node; +} + +/*! + \internal + + File at parentNode->children(itemLocation) has been removed, remove from the lists + and emit signals if necessary + + *WARNING* this will change the count of children and could change visibleChildren + */ +void QFileSystemModelPrivate::removeNode(QFileSystemModelPrivate::QFileSystemNode *parentNode, const QString& name) +{ + Q_Q(QFileSystemModel); + QModelIndex parent = index(parentNode); + bool indexHidden = isHiddenByFilter(parentNode, parent); + + int vLocation = parentNode->visibleLocation(name); + if (vLocation >= 0 && !indexHidden) + q->beginRemoveRows(parent, translateVisibleLocation(parentNode, vLocation), + translateVisibleLocation(parentNode, vLocation)); + QFileSystemNode * node = parentNode->children.take(name); + delete node; + // cleanup sort files after removing rather then re-sorting which is O(n) + if (vLocation >= 0) + parentNode->visibleChildren.removeAt(vLocation); + if (vLocation >= 0 && !indexHidden) + q->endRemoveRows(); +} + +/* + \internal + Helper functor used by addVisibleFiles() +*/ +class QFileSystemModelVisibleFinder +{ +public: + inline QFileSystemModelVisibleFinder(QFileSystemModelPrivate::QFileSystemNode *node, QFileSystemModelSorter *sorter) : parentNode(node), sorter(sorter) {} + + bool operator()(const QString &, QString r) const + { + return sorter->compareNodes(parentNode->children.value(name), parentNode->children.value(r)); + } + + QString name; +private: + QFileSystemModelPrivate::QFileSystemNode *parentNode; + QFileSystemModelSorter *sorter; +}; + +/*! + \internal + + File at parentNode->children(itemLocation) was not visible before, but now should be + and emit signals if necessary. + + *WARNING* this will change the visible count + */ +void QFileSystemModelPrivate::addVisibleFiles(QFileSystemNode *parentNode, const QStringList &newFiles) +{ + Q_Q(QFileSystemModel); + QModelIndex parent = index(parentNode); + bool indexHidden = isHiddenByFilter(parentNode, parent); + if (!indexHidden) { + q->beginInsertRows(parent, parentNode->visibleChildren.count() , parentNode->visibleChildren.count() + newFiles.count() - 1); + } + + if (parentNode->dirtyChildrenIndex == -1) + parentNode->dirtyChildrenIndex = parentNode->visibleChildren.count(); + + for (int i = 0; i < newFiles.count(); ++i) { + parentNode->visibleChildren.append(newFiles.at(i)); + parentNode->children[newFiles.at(i)]->isVisible = true; + } + if (!indexHidden) + q->endInsertRows(); +} + +/*! + \internal + + File was visible before, but now should NOT be + + *WARNING* this will change the visible count + */ +void QFileSystemModelPrivate::removeVisibleFile(QFileSystemNode *parentNode, int vLocation) +{ + Q_Q(QFileSystemModel); + if (vLocation == -1) + return; + QModelIndex parent = index(parentNode); + bool indexHidden = isHiddenByFilter(parentNode, parent); + if (!indexHidden) + q->beginRemoveRows(parent, translateVisibleLocation(parentNode, vLocation), + translateVisibleLocation(parentNode, vLocation)); + parentNode->children[parentNode->visibleChildren.at(vLocation)]->isVisible = false; + parentNode->visibleChildren.removeAt(vLocation); + if (!indexHidden) + q->endRemoveRows(); +} + +/*! + \internal + + The thread has received new information about files, + update and emit dataChanged if it has actually changed. + */ +void QFileSystemModelPrivate::_q_fileSystemChanged(const QString &path, const QList<QPair<QString, QFileInfo> > &updates) +{ + Q_Q(QFileSystemModel); + QVector<QString> rowsToUpdate; + QStringList newFiles; + QFileSystemModelPrivate::QFileSystemNode *parentNode = node(path, false); + QModelIndex parentIndex = index(parentNode); + for (int i = 0; i < updates.count(); ++i) { + QString fileName = updates.at(i).first; + Q_ASSERT(!fileName.isEmpty()); + QExtendedInformation info = fileInfoGatherer.getInfo(updates.at(i).second); + bool previouslyHere = parentNode->children.contains(fileName); + if (!previouslyHere) { + addNode(parentNode, fileName, info.fileInfo()); + } + QFileSystemModelPrivate::QFileSystemNode * node = parentNode->children.value(fileName); + bool isCaseSensitive = parentNode->caseSensitive(); + if (isCaseSensitive) { + if (node->fileName != fileName) + continue; + } else { + if (QString::compare(node->fileName,fileName,Qt::CaseInsensitive) != 0) + continue; + } + if (isCaseSensitive) { + Q_ASSERT(node->fileName == fileName); + } else { + node->fileName = fileName; + } + + if (info.size() == -1 && !info.isSymLink()) { + removeNode(parentNode, fileName); + continue; + } + if (*node != info ) { + node->populate(info); + bypassFilters.remove(node); + // brand new information. + if (filtersAcceptsNode(node)) { + if (!node->isVisible) { + newFiles.append(fileName); + } else { + rowsToUpdate.append(fileName); + } + } else { + if (node->isVisible) { + int visibleLocation = parentNode->visibleLocation(fileName); + removeVisibleFile(parentNode, visibleLocation); + } else { + // The file is not visible, don't do anything + } + } + } + } + + // bundle up all of the changed signals into as few as possible. + qSort(rowsToUpdate.begin(), rowsToUpdate.end()); + QString min; + QString max; + for (int i = 0; i < rowsToUpdate.count(); ++i) { + QString value = rowsToUpdate.at(i); + //##TODO is there a way to bundle signals with QString as the content of the list? + /*if (min.isEmpty()) { + min = value; + if (i != rowsToUpdate.count() - 1) + continue; + } + if (i != rowsToUpdate.count() - 1) { + if ((value == min + 1 && max.isEmpty()) || value == max + 1) { + max = value; + continue; + } + }*/ + max = value; + min = value; + int visibleMin = parentNode->visibleLocation(min); + int visibleMax = parentNode->visibleLocation(max); + if (visibleMin >= 0 + && visibleMin < parentNode->visibleChildren.count() + && parentNode->visibleChildren.at(visibleMin) == min + && visibleMax >= 0) { + QModelIndex bottom = q->index(translateVisibleLocation(parentNode, visibleMin), 0, parentIndex); + QModelIndex top = q->index(translateVisibleLocation(parentNode, visibleMax), 3, parentIndex); + emit q->dataChanged(bottom, top); + } + + /*min = QString(); + max = QString();*/ + } + + if (newFiles.count() > 0) { + addVisibleFiles(parentNode, newFiles); + } + + if (newFiles.count() > 0 || (sortColumn != 0 && rowsToUpdate.count() > 0)) { + forceSort = true; + delayedSort(); + } +} + +/*! + \internal +*/ +void QFileSystemModelPrivate::_q_resolvedName(const QString &fileName, const QString &resolvedName) +{ + resolvedSymLinks[fileName] = resolvedName; +} + +/*! + \internal +*/ +void QFileSystemModelPrivate::init() +{ + Q_Q(QFileSystemModel); + qRegisterMetaType<QList<QPair<QString,QFileInfo> > >("QList<QPair<QString,QFileInfo> >"); + q->connect(&fileInfoGatherer, SIGNAL(newListOfFiles(QString,QStringList)), + q, SLOT(_q_directoryChanged(QString,QStringList))); + q->connect(&fileInfoGatherer, SIGNAL(updates(QString,QList<QPair<QString,QFileInfo> >)), + q, SLOT(_q_fileSystemChanged(QString,QList<QPair<QString,QFileInfo> >))); + q->connect(&fileInfoGatherer, SIGNAL(nameResolved(QString,QString)), + q, SLOT(_q_resolvedName(QString,QString))); + q->connect(&fileInfoGatherer, SIGNAL(directoryLoaded(QString)), + q, SIGNAL(directoryLoaded(QString))); + q->connect(&delayedSortTimer, SIGNAL(timeout()), q, SLOT(_q_performDelayedSort()), Qt::QueuedConnection); + + QHash<int, QByteArray> roles = q->roleNames(); + roles.insertMulti(QFileSystemModel::FileIconRole, "fileIcon"); // == Qt::decoration + roles.insert(QFileSystemModel::FilePathRole, "filePath"); + roles.insert(QFileSystemModel::FileNameRole, "fileName"); + roles.insert(QFileSystemModel::FilePermissions, "filePermissions"); + q->setRoleNames(roles); +} + +/*! + \internal + + Returns false if node doesn't pass the filters otherwise true + + QDir::Modified is not supported + QDir::Drives is not supported +*/ +bool QFileSystemModelPrivate::filtersAcceptsNode(const QFileSystemNode *node) const +{ + // always accept drives + if (node->parent == &root || bypassFilters.contains(node)) + return true; + + // If we don't know anything yet don't accept it + if (!node->hasInformation()) + return false; + + const bool filterPermissions = ((filters & QDir::PermissionMask) + && (filters & QDir::PermissionMask) != QDir::PermissionMask); + const bool hideDirs = !(filters & (QDir::Dirs | QDir::AllDirs)); + const bool hideFiles = !(filters & QDir::Files); + const bool hideReadable = !(!filterPermissions || (filters & QDir::Readable)); + const bool hideWritable = !(!filterPermissions || (filters & QDir::Writable)); + const bool hideExecutable = !(!filterPermissions || (filters & QDir::Executable)); + const bool hideHidden = !(filters & QDir::Hidden); + const bool hideSystem = !(filters & QDir::System); + const bool hideSymlinks = (filters & QDir::NoSymLinks); + const bool hideDot = (filters & QDir::NoDot) || (filters & QDir::NoDotAndDotDot); // ### Qt5: simplify (because NoDotAndDotDot=NoDot|NoDotDot) + const bool hideDotDot = (filters & QDir::NoDotDot) || (filters & QDir::NoDotAndDotDot); // ### Qt5: simplify (because NoDotAndDotDot=NoDot|NoDotDot) + + // Note that we match the behavior of entryList and not QFileInfo on this and this + // incompatibility won't be fixed until Qt 5 at least + bool isDot = (node->fileName == QLatin1String(".")); + bool isDotDot = (node->fileName == QLatin1String("..")); + if ( (hideHidden && !(isDot || isDotDot) && node->isHidden()) + || (hideSystem && node->isSystem()) + || (hideDirs && node->isDir()) + || (hideFiles && node->isFile()) + || (hideSymlinks && node->isSymLink()) + || (hideReadable && node->isReadable()) + || (hideWritable && node->isWritable()) + || (hideExecutable && node->isExecutable()) + || (hideDot && isDot) + || (hideDotDot && isDotDot)) + return false; + + return nameFilterDisables || passNameFilters(node); +} + +/* + \internal + + Returns true if node passes the name filters and should be visible. + */ +bool QFileSystemModelPrivate::passNameFilters(const QFileSystemNode *node) const +{ +#ifndef QT_NO_REGEXP + if (nameFilters.isEmpty()) + return true; + + // Check the name regularexpression filters + if (!(node->isDir() && (filters & QDir::AllDirs))) { + for (int i = 0; i < nameFilters.size(); ++i) { + if (nameFilters.at(i).exactMatch(node->fileName)) + return true; + } + return false; + } +#endif + return true; +} + +QT_END_NAMESPACE + +#include "moc_qfilesystemmodel.cpp" + +#endif // QT_NO_FILESYSTEMMODEL |