Add a simple folder model.

1 files changed, 178 insertions, 0 deletions

diff --git a/src/declarative/extra/qmlfolderlistmodel.cpp b/src/declarative/extra/qmlfolderlistmodel.cpp
new file mode 100644
index 0000000..43ffd5c
--- /dev/null
+++ b/src/declarative/extra/qmlfolderlistmodel.cpp
@@ -0,0 +1,178 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "private/qobject_p.h"
+#include <QDirModel>
+#include <qdebug.h>
+#include "qmlfolderlistmodel.h"
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QmlFolderListModelPrivate : public QObjectPrivate
+{
+public:
+    QmlFolderListModelPrivate() {
+        folderIndex = model.index(0,0);
+    }
+
+    QDirModel model;
+    QString folder;
+    QStringList nameFilters;
+    QModelIndex folderIndex;
+};
+
+QmlFolderListModel::QmlFolderListModel(QObject *parent)
+    : QListModelInterface(*(new QmlFolderListModelPrivate), parent)
+{
+    Q_D(QmlFolderListModel);
+    d->model.setFilter(QDir::AllDirs | QDir::Files | QDir::Drives);
+    connect(&d->model, SIGNAL(rowsInserted(const QModelIndex&,int,int))
+            , this, SLOT(inserted(const QModelIndex&,int,int)));
+}
+
+QmlFolderListModel::~QmlFolderListModel()
+{
+}
+
+QHash<int,QVariant> QmlFolderListModel::data(int index, const QList<int> &roles) const
+{
+    Q_D(const QmlFolderListModel);
+    QHash<int,QVariant> folderData;
+    QModelIndex modelIndex = d->model.index(index, 0, d->folderIndex);
+    if (modelIndex.isValid()) {
+        folderData[QDirModel::FileNameRole] = d->model.data(modelIndex, QDirModel::FileNameRole);
+        folderData[QDirModel::FilePathRole] = d->model.data(modelIndex, QDirModel::FilePathRole);
+    }
+
+    return folderData;
+}
+
+int QmlFolderListModel::count() const
+{
+    Q_D(const QmlFolderListModel);
+    if (!d->folderIndex.isValid())
+        return 0;
+    return d->model.rowCount(d->folderIndex);
+}
+
+QList<int> QmlFolderListModel::roles() const
+{
+    QList<int> r;
+    r << QDirModel::FileNameRole;
+    r << QDirModel::FilePathRole;
+    return r;
+}
+
+QString QmlFolderListModel::toString(int role) const
+{
+    switch (role) {
+    case QDirModel::FileNameRole:
+        return QLatin1String("fileName");
+    case QDirModel::FilePathRole:
+        return QLatin1String("filePath");
+    }
+
+    return QString();
+}
+
+QString QmlFolderListModel::folder() const
+{
+    Q_D(const QmlFolderListModel);
+    return d->folder;
+}
+
+void QmlFolderListModel::setFolder(const QString &folder)
+{
+    Q_D(QmlFolderListModel);
+    QModelIndex index = d->model.index(folder);
+    if (index.isValid() && d->model.isDir(index)) {
+        d->folder = folder;
+        QMetaObject::invokeMethod(this, "refresh", Qt::QueuedConnection);
+    }
+}
+
+QStringList QmlFolderListModel::nameFilters() const
+{
+    Q_D(const QmlFolderListModel);
+    return d->nameFilters;
+}
+
+void QmlFolderListModel::setNameFilters(const QStringList &filters)
+{
+    Q_D(QmlFolderListModel);
+    d->nameFilters = filters;
+    QMetaObject::invokeMethod(this, "refresh", Qt::QueuedConnection);
+}
+
+void QmlFolderListModel::classComplete()
+{
+}
+
+bool QmlFolderListModel::isFolder(int index) const
+{
+    Q_D(const QmlFolderListModel);
+    return d->model.isDir(d->model.index(index, 0, d->folderIndex));
+}
+
+void QmlFolderListModel::refresh()
+{
+    Q_D(QmlFolderListModel);
+    int prevCount = count();
+    d->folderIndex = QModelIndex();
+    emit itemsRemoved(0, prevCount);
+    d->folderIndex = d->model.index(d->folder);
+    emit itemsInserted(0, count());
+}
+
+void QmlFolderListModel::inserted(const QModelIndex &index, int start, int end)
+{
+    Q_D(QmlFolderListModel);
+    qDebug() << "inserted" << start << end;
+    if (index == d->folderIndex)
+        emit itemsInserted(start, end - start + 1);
+}
+
+QML_DEFINE_TYPE(QmlFolderListModel,FolderListModel)
+
+QT_END_NAMESPACE
+