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+/****************************************************************************
+**
+** 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 examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtNetwork>
+
+#include "ftpwindow.h"
+
+FtpWindow::FtpWindow(QWidget *parent)
+ : QDialog(parent), ftp(0), networkSession(0)
+{
+ ftpServerLabel = new QLabel(tr("Ftp &server:"));
+ ftpServerLineEdit = new QLineEdit("ftp.qt.nokia.com");
+ ftpServerLabel->setBuddy(ftpServerLineEdit);
+
+ statusLabel = new QLabel(tr("Please enter the name of an FTP server."));
+#ifdef Q_OS_SYMBIAN
+ // Use word wrapping to fit the text on screen
+ statusLabel->setWordWrap( true );
+#endif
+
+ fileList = new QTreeWidget;
+ fileList->setEnabled(false);
+ fileList->setRootIsDecorated(false);
+ fileList->setHeaderLabels(QStringList() << tr("Name") << tr("Size") << tr("Owner") << tr("Group") << tr("Time"));
+ fileList->header()->setStretchLastSection(false);
+
+ connectButton = new QPushButton(tr("Connect"));
+ connectButton->setDefault(true);
+
+ cdToParentButton = new QPushButton;
+ cdToParentButton->setIcon(QPixmap(":/images/cdtoparent.png"));
+ cdToParentButton->setEnabled(false);
+
+ downloadButton = new QPushButton(tr("Download"));
+ downloadButton->setEnabled(false);
+
+ quitButton = new QPushButton(tr("Quit"));
+
+ buttonBox = new QDialogButtonBox;
+ buttonBox->addButton(downloadButton, QDialogButtonBox::ActionRole);
+ buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
+
+ progressDialog = new QProgressDialog(this);
+
+ connect(fileList, SIGNAL(itemActivated(QTreeWidgetItem*,int)),
+ this, SLOT(processItem(QTreeWidgetItem*,int)));
+ connect(fileList, SIGNAL(currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)),
+ this, SLOT(enableDownloadButton()));
+ connect(progressDialog, SIGNAL(canceled()), this, SLOT(cancelDownload()));
+ connect(connectButton, SIGNAL(clicked()), this, SLOT(connectOrDisconnect()));
+ connect(cdToParentButton, SIGNAL(clicked()), this, SLOT(cdToParent()));
+ connect(downloadButton, SIGNAL(clicked()), this, SLOT(downloadFile()));
+ connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
+
+ QHBoxLayout *topLayout = new QHBoxLayout;
+ topLayout->addWidget(ftpServerLabel);
+ topLayout->addWidget(ftpServerLineEdit);
+#ifndef Q_OS_SYMBIAN
+ topLayout->addWidget(cdToParentButton);
+ topLayout->addWidget(connectButton);
+#else
+ // Make app better lookin on small screen
+ QHBoxLayout *topLayout2 = new QHBoxLayout;
+ topLayout2->addWidget(cdToParentButton);
+ topLayout2->addWidget(connectButton);
+#endif
+
+ QVBoxLayout *mainLayout = new QVBoxLayout;
+ mainLayout->addLayout(topLayout);
+#ifdef Q_OS_SYMBIAN
+ // Make app better lookin on small screen
+ mainLayout->addLayout(topLayout2);
+#endif
+ mainLayout->addWidget(fileList);
+ mainLayout->addWidget(statusLabel);
+ mainLayout->addWidget(buttonBox);
+ setLayout(mainLayout);
+
+ QNetworkConfigurationManager manager;
+ if (manager.capabilities() & QNetworkConfigurationManager::NetworkSessionRequired) {
+ // Get saved network configuration
+ QSettings settings(QSettings::UserScope, QLatin1String("Trolltech"));
+ settings.beginGroup(QLatin1String("QtNetwork"));
+ const QString id = settings.value(QLatin1String("DefaultNetworkConfiguration")).toString();
+ settings.endGroup();
+
+ // If the saved network configuration is not currently discovered use the system default
+ QNetworkConfiguration config = manager.configurationFromIdentifier(id);
+ if ((config.state() & QNetworkConfiguration::Discovered) !=
+ QNetworkConfiguration::Discovered) {
+ config = manager.defaultConfiguration();
+ }
+
+ networkSession = new QNetworkSession(config, this);
+ connect(networkSession, SIGNAL(opened()), this, SLOT(enableConnectButton()));
+
+ connectButton->setEnabled(false);
+ statusLabel->setText(tr("Opening network session."));
+ networkSession->open();
+ }
+
+ setWindowTitle(tr("FTP"));
+}
+
+QSize FtpWindow::sizeHint() const
+{
+ return QSize(500, 300);
+}
+
+//![0]
+void FtpWindow::connectOrDisconnect()
+{
+ if (ftp) {
+ ftp->abort();
+ ftp->deleteLater();
+ ftp = 0;
+//![0]
+ fileList->setEnabled(false);
+ cdToParentButton->setEnabled(false);
+ downloadButton->setEnabled(false);
+ connectButton->setEnabled(true);
+ connectButton->setText(tr("Connect"));
+#ifndef QT_NO_CURSOR
+ setCursor(Qt::ArrowCursor);
+#endif
+ statusLabel->setText(tr("Please enter the name of an FTP server."));
+ return;
+ }
+
+#ifndef QT_NO_CURSOR
+ setCursor(Qt::WaitCursor);
+#endif
+
+//![1]
+ ftp = new QFtp(this);
+ connect(ftp, SIGNAL(commandFinished(int,bool)),
+ this, SLOT(ftpCommandFinished(int,bool)));
+ connect(ftp, SIGNAL(listInfo(QUrlInfo)),
+ this, SLOT(addToList(QUrlInfo)));
+ connect(ftp, SIGNAL(dataTransferProgress(qint64,qint64)),
+ this, SLOT(updateDataTransferProgress(qint64,qint64)));
+
+ fileList->clear();
+ currentPath.clear();
+ isDirectory.clear();
+//![1]
+
+//![2]
+ QUrl url(ftpServerLineEdit->text());
+ if (!url.isValid() || url.scheme().toLower() != QLatin1String("ftp")) {
+ ftp->connectToHost(ftpServerLineEdit->text(), 21);
+ ftp->login();
+ } else {
+ ftp->connectToHost(url.host(), url.port(21));
+
+ if (!url.userName().isEmpty())
+ ftp->login(QUrl::fromPercentEncoding(url.userName().toLatin1()), url.password());
+ else
+ ftp->login();
+ if (!url.path().isEmpty())
+ ftp->cd(url.path());
+ }
+//![2]
+
+ fileList->setEnabled(true);
+ connectButton->setEnabled(false);
+ connectButton->setText(tr("Disconnect"));
+ statusLabel->setText(tr("Connecting to FTP server %1...")
+ .arg(ftpServerLineEdit->text()));
+}
+
+//![3]
+void FtpWindow::downloadFile()
+{
+ QString fileName = fileList->currentItem()->text(0);
+//![3]
+//
+ if (QFile::exists(fileName)) {
+ QMessageBox::information(this, tr("FTP"),
+ tr("There already exists a file called %1 in "
+ "the current directory.")
+ .arg(fileName));
+ return;
+ }
+
+//![4]
+ file = new QFile(fileName);
+ if (!file->open(QIODevice::WriteOnly)) {
+ QMessageBox::information(this, tr("FTP"),
+ tr("Unable to save the file %1: %2.")
+ .arg(fileName).arg(file->errorString()));
+ delete file;
+ return;
+ }
+
+ ftp->get(fileList->currentItem()->text(0), file);
+
+ progressDialog->setLabelText(tr("Downloading %1...").arg(fileName));
+ downloadButton->setEnabled(false);
+ progressDialog->exec();
+}
+//![4]
+
+//![5]
+void FtpWindow::cancelDownload()
+{
+ ftp->abort();
+}
+//![5]
+
+//![6]
+void FtpWindow::ftpCommandFinished(int, bool error)
+{
+#ifndef QT_NO_CURSOR
+ setCursor(Qt::ArrowCursor);
+#endif
+
+ if (ftp->currentCommand() == QFtp::ConnectToHost) {
+ if (error) {
+ QMessageBox::information(this, tr("FTP"),
+ tr("Unable to connect to the FTP server "
+ "at %1. Please check that the host "
+ "name is correct.")
+ .arg(ftpServerLineEdit->text()));
+ connectOrDisconnect();
+ return;
+ }
+ statusLabel->setText(tr("Logged onto %1.")
+ .arg(ftpServerLineEdit->text()));
+ fileList->setFocus();
+ downloadButton->setDefault(true);
+ connectButton->setEnabled(true);
+ return;
+ }
+//![6]
+
+//![7]
+ if (ftp->currentCommand() == QFtp::Login)
+ ftp->list();
+//![7]
+
+//![8]
+ if (ftp->currentCommand() == QFtp::Get) {
+ if (error) {
+ statusLabel->setText(tr("Canceled download of %1.")
+ .arg(file->fileName()));
+ file->close();
+ file->remove();
+ } else {
+ statusLabel->setText(tr("Downloaded %1 to current directory.")
+ .arg(file->fileName()));
+ file->close();
+ }
+ delete file;
+ enableDownloadButton();
+ progressDialog->hide();
+//![8]
+//![9]
+ } else if (ftp->currentCommand() == QFtp::List) {
+ if (isDirectory.isEmpty()) {
+ fileList->addTopLevelItem(new QTreeWidgetItem(QStringList() << tr("<empty>")));
+ fileList->setEnabled(false);
+ }
+ }
+//![9]
+}
+
+//![10]
+void FtpWindow::addToList(const QUrlInfo &urlInfo)
+{
+ QTreeWidgetItem *item = new QTreeWidgetItem;
+ item->setText(0, urlInfo.name());
+ item->setText(1, QString::number(urlInfo.size()));
+ item->setText(2, urlInfo.owner());
+ item->setText(3, urlInfo.group());
+ item->setText(4, urlInfo.lastModified().toString("MMM dd yyyy"));
+
+ QPixmap pixmap(urlInfo.isDir() ? ":/images/dir.png" : ":/images/file.png");
+ item->setIcon(0, pixmap);
+
+ isDirectory[urlInfo.name()] = urlInfo.isDir();
+ fileList->addTopLevelItem(item);
+ if (!fileList->currentItem()) {
+ fileList->setCurrentItem(fileList->topLevelItem(0));
+ fileList->setEnabled(true);
+ }
+}
+//![10]
+
+//![11]
+void FtpWindow::processItem(QTreeWidgetItem *item, int /*column*/)
+{
+ QString name = item->text(0);
+ if (isDirectory.value(name)) {
+ fileList->clear();
+ isDirectory.clear();
+ currentPath += '/';
+ currentPath += name;
+ ftp->cd(name);
+ ftp->list();
+ cdToParentButton->setEnabled(true);
+#ifndef QT_NO_CURSOR
+ setCursor(Qt::WaitCursor);
+#endif
+ return;
+ }
+}
+//![11]
+
+//![12]
+void FtpWindow::cdToParent()
+{
+#ifndef QT_NO_CURSOR
+ setCursor(Qt::WaitCursor);
+#endif
+ fileList->clear();
+ isDirectory.clear();
+ currentPath = currentPath.left(currentPath.lastIndexOf('/'));
+ if (currentPath.isEmpty()) {
+ cdToParentButton->setEnabled(false);
+ ftp->cd("/");
+ } else {
+ ftp->cd(currentPath);
+ }
+ ftp->list();
+}
+//![12]
+
+//![13]
+void FtpWindow::updateDataTransferProgress(qint64 readBytes,
+ qint64 totalBytes)
+{
+ progressDialog->setMaximum(totalBytes);
+ progressDialog->setValue(readBytes);
+}
+//![13]
+
+//![14]
+void FtpWindow::enableDownloadButton()
+{
+ QTreeWidgetItem *current = fileList->currentItem();
+ if (current) {
+ QString currentFile = current->text(0);
+ downloadButton->setEnabled(!isDirectory.value(currentFile));
+ } else {
+ downloadButton->setEnabled(false);
+ }
+}
+//![14]
+
+void FtpWindow::enableConnectButton()
+{
+ // Save the used configuration
+ QNetworkConfiguration config = networkSession->configuration();
+ QString id;
+ if (config.type() == QNetworkConfiguration::UserChoice)
+ id = networkSession->sessionProperty(QLatin1String("UserChoiceConfiguration")).toString();
+ else
+ id = config.identifier();
+
+ QSettings settings(QSettings::UserScope, QLatin1String("Trolltech"));
+ settings.beginGroup(QLatin1String("QtNetwork"));
+ settings.setValue(QLatin1String("DefaultNetworkConfiguration"), id);
+ settings.endGroup();
+
+ connectButton->setEnabled(networkSession->isOpen());
+ statusLabel->setText(tr("Please enter the name of an FTP server."));
+}
+