Long live Qt for S60!

1 files changed, 262 insertions, 0 deletions

diff --git a/examples/network/http/httpwindow.cpp b/examples/network/http/httpwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 <QtGui>
+#include <QtNetwork>
+
+#include "httpwindow.h"
+#include "ui_authenticationdialog.h"
+
+HttpWindow::HttpWindow(QWidget *parent)
+    : QDialog(parent)
+{
+#ifndef QT_NO_OPENSSL
+    urlLineEdit = new QLineEdit("https://");
+#else
+    urlLineEdit = new QLineEdit("http://");
+#endif
+
+    urlLabel = new QLabel(tr("&URL:"));
+    urlLabel->setBuddy(urlLineEdit);
+    statusLabel = new QLabel(tr("Please enter the URL of a file you want to "
+                                "download."));
+
+    downloadButton = new QPushButton(tr("Download"));
+    downloadButton->setDefault(true);
+    quitButton = new QPushButton(tr("Quit"));
+    quitButton->setAutoDefault(false);
+
+    buttonBox = new QDialogButtonBox;
+    buttonBox->addButton(downloadButton, QDialogButtonBox::ActionRole);
+    buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
+
+    progressDialog = new QProgressDialog(this);
+
+    http = new QHttp(this);
+
+    connect(urlLineEdit, SIGNAL(textChanged(const QString &)),
+            this, SLOT(enableDownloadButton()));
+    connect(http, SIGNAL(requestFinished(int, bool)),
+            this, SLOT(httpRequestFinished(int, bool)));
+    connect(http, SIGNAL(dataReadProgress(int, int)),
+            this, SLOT(updateDataReadProgress(int, int)));
+    connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),
+            this, SLOT(readResponseHeader(const QHttpResponseHeader &)));
+    connect(http, SIGNAL(authenticationRequired(const QString &, quint16, QAuthenticator *)),
+            this, SLOT(slotAuthenticationRequired(const QString &, quint16, QAuthenticator *)));
+#ifndef QT_NO_OPENSSL
+    connect(http, SIGNAL(sslErrors(const QList<QSslError> &)),
+            this, SLOT(sslErrors(const QList<QSslError> &)));
+#endif
+    connect(progressDialog, SIGNAL(canceled()), this, SLOT(cancelDownload()));
+    connect(downloadButton, SIGNAL(clicked()), this, SLOT(downloadFile()));
+    connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
+
+    QHBoxLayout *topLayout = new QHBoxLayout;
+    topLayout->addWidget(urlLabel);
+    topLayout->addWidget(urlLineEdit);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addLayout(topLayout);
+    mainLayout->addWidget(statusLabel);
+    mainLayout->addWidget(buttonBox);
+    setLayout(mainLayout);
+
+    setWindowTitle(tr("HTTP"));
+    urlLineEdit->setFocus();
+}
+
+void HttpWindow::downloadFile()
+{
+    QUrl url(urlLineEdit->text());
+    QFileInfo fileInfo(url.path());
+    QString fileName = fileInfo.fileName();
+    if (fileName.isEmpty())
+        fileName = "index.html";
+
+    if (QFile::exists(fileName)) {
+        if (QMessageBox::question(this, tr("HTTP"), 
+                                  tr("There already exists a file called %1 in "
+                                     "the current directory. Overwrite?").arg(fileName),
+                                  QMessageBox::Ok|QMessageBox::Cancel, QMessageBox::Cancel)
+            == QMessageBox::Cancel)
+            return;
+        QFile::remove(fileName);
+    }
+
+    file = new QFile(fileName);
+    if (!file->open(QIODevice::WriteOnly)) {
+        QMessageBox::information(this, tr("HTTP"),
+                                 tr("Unable to save the file %1: %2.")
+                                 .arg(fileName).arg(file->errorString()));
+        delete file;
+        file = 0;
+        return;
+    }
+
+    QHttp::ConnectionMode mode = url.scheme().toLower() == "https" ? QHttp::ConnectionModeHttps : QHttp::ConnectionModeHttp;
+    http->setHost(url.host(), mode, url.port() == -1 ? 0 : url.port());
+    
+    if (!url.userName().isEmpty())
+        http->setUser(url.userName(), url.password());
+
+    httpRequestAborted = false;
+    QByteArray path = QUrl::toPercentEncoding(url.path(), "!$&'()*+,;=:@/");
+    if (path.isEmpty())
+        path = "/";
+    httpGetId = http->get(path, file);
+
+    progressDialog->setWindowTitle(tr("HTTP"));
+    progressDialog->setLabelText(tr("Downloading %1.").arg(fileName));
+    downloadButton->setEnabled(false);
+}
+
+void HttpWindow::cancelDownload()
+{
+    statusLabel->setText(tr("Download canceled."));
+    httpRequestAborted = true;
+    http->abort();
+    downloadButton->setEnabled(true);
+}
+
+void HttpWindow::httpRequestFinished(int requestId, bool error)
+{
+    if (requestId != httpGetId)
+        return;
+    if (httpRequestAborted) {
+        if (file) {
+            file->close();
+            file->remove();
+            delete file;
+            file = 0;
+        }
+
+        progressDialog->hide();
+        return;
+    }
+
+    if (requestId != httpGetId)
+        return;
+
+    progressDialog->hide();
+    file->close();
+
+    if (error) {
+        file->remove();
+        QMessageBox::information(this, tr("HTTP"),
+                                 tr("Download failed: %1.")
+                                 .arg(http->errorString()));
+    } else {
+        QString fileName = QFileInfo(QUrl(urlLineEdit->text()).path()).fileName();
+        statusLabel->setText(tr("Downloaded %1 to current directory.").arg(fileName));
+    }
+
+    downloadButton->setEnabled(true);
+    delete file;
+    file = 0;
+}
+
+void HttpWindow::readResponseHeader(const QHttpResponseHeader &responseHeader)
+{
+    switch (responseHeader.statusCode()) {
+    case 200:                   // Ok
+    case 301:                   // Moved Permanently
+    case 302:                   // Found
+    case 303:                   // See Other
+    case 307:                   // Temporary Redirect
+        // these are not error conditions
+        break;
+
+    default:
+        QMessageBox::information(this, tr("HTTP"),
+                                 tr("Download failed: %1.")
+                                 .arg(responseHeader.reasonPhrase()));
+        httpRequestAborted = true;
+        progressDialog->hide();
+        http->abort();
+    }
+}
+
+void HttpWindow::updateDataReadProgress(int bytesRead, int totalBytes)
+{
+    if (httpRequestAborted)
+        return;
+
+    progressDialog->setMaximum(totalBytes);
+    progressDialog->setValue(bytesRead);
+}
+
+void HttpWindow::enableDownloadButton()
+{
+    downloadButton->setEnabled(!urlLineEdit->text().isEmpty());
+}
+
+void HttpWindow::slotAuthenticationRequired(const QString &hostName, quint16, QAuthenticator *authenticator)
+{
+    QDialog dlg;
+    Ui::Dialog ui;
+    ui.setupUi(&dlg);
+    dlg.adjustSize();
+    ui.siteDescription->setText(tr("%1 at %2").arg(authenticator->realm()).arg(hostName));
+    
+    if (dlg.exec() == QDialog::Accepted) {
+        authenticator->setUser(ui.userEdit->text());
+        authenticator->setPassword(ui.passwordEdit->text());
+    }
+}
+
+#ifndef QT_NO_OPENSSL
+void HttpWindow::sslErrors(const QList<QSslError> &errors)
+{
+    QString errorString;
+    foreach (const QSslError &error, errors) {
+        if (!errorString.isEmpty())
+            errorString += ", ";
+        errorString += error.errorString();
+    }
+    
+    if (QMessageBox::warning(this, tr("HTTP Example"),
+                             tr("One or more SSL errors has occurred: %1").arg(errorString),
+                             QMessageBox::Ignore | QMessageBox::Abort) == QMessageBox::Ignore) {
+        http->ignoreSslErrors();
+    }
+}
+#endif