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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

4 files changed, 412 insertions, 0 deletions

diff --git a/examples/xml/rsslisting/main.cpp b/examples/xml/rsslisting/main.cpp
new file mode 100644
index 0000000000..011569f2b6
--- /dev/null
+++ b/examples/xml/rsslisting/main.cpp
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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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+main.cpp
+
+Provides the main function for the RSS news reader example.
+*/
+
+#include <QtGui>
+
+#include "rsslisting.h"
+
+/*!
+    Create an application and a main widget. Open the main widget for
+    user input, and exit with an appropriate return value when it is
+    closed.
+*/
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    RSSListing *rsslisting = new RSSListing;
+    rsslisting->show();
+    return app.exec();
+}
diff --git a/examples/xml/rsslisting/rsslisting.cpp b/examples/xml/rsslisting/rsslisting.cpp
new file mode 100644
index 0000000000..5840f08d09
--- /dev/null
+++ b/examples/xml/rsslisting/rsslisting.cpp
@@ -0,0 +1,247 @@
+/****************************************************************************
+**
+** 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+rsslisting.cpp
+
+Provides a widget for displaying news items from RDF news sources.
+RDF is an XML-based format for storing items of information (see
+http://www.w3.org/RDF/ for details).
+
+The widget itself provides a simple user interface for specifying
+the URL of a news source, and controlling the downloading of news.
+
+The widget downloads and parses the XML asynchronously, feeding the
+data to an XML reader in pieces. This allows the user to interrupt
+its operation, and also allows very large data sources to be read.
+*/
+
+
+#include <QtCore>
+#include <QtGui>
+#include <QtNetwork>
+
+#include "rsslisting.h"
+
+
+/*
+    Constructs an RSSListing widget with a simple user interface, and sets
+    up the XML reader to use a custom handler class.
+
+    The user interface consists of a line edit, a push button, and a
+    list view widget. The line edit is used for entering the URLs of news
+    sources; the push button starts the process of reading the
+    news.
+*/
+
+RSSListing::RSSListing(QWidget *parent)
+    : QWidget(parent), currentReply(0)
+{
+    lineEdit = new QLineEdit(this);
+    lineEdit->setText("http://labs.qt.nokia.com/blogs/feed");
+
+    fetchButton = new QPushButton(tr("Fetch"), this);
+
+    treeWidget = new QTreeWidget(this);
+    connect(treeWidget, SIGNAL(itemActivated(QTreeWidgetItem*,int)),
+            this, SLOT(itemActivated(QTreeWidgetItem*)));
+    QStringList headerLabels;
+    headerLabels << tr("Title") << tr("Link");
+    treeWidget->setHeaderLabels(headerLabels);
+    treeWidget->header()->setResizeMode(QHeaderView::ResizeToContents);
+
+    connect(&manager, SIGNAL(finished(QNetworkReply*)),
+             this, SLOT(finished(QNetworkReply*)));
+
+    connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(fetch()));
+    connect(fetchButton, SIGNAL(clicked()), this, SLOT(fetch()));
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+
+    QHBoxLayout *hboxLayout = new QHBoxLayout;
+
+    hboxLayout->addWidget(lineEdit);
+    hboxLayout->addWidget(fetchButton);
+
+    layout->addLayout(hboxLayout);
+    layout->addWidget(treeWidget);
+
+    setWindowTitle(tr("RSS listing example"));
+    resize(640,480);
+}
+
+/*
+    Starts the network request and connects the needed signals
+*/
+void RSSListing::get(const QUrl &url)
+{
+    QNetworkRequest request(url);
+    if (currentReply) {
+        currentReply->disconnect(this);
+        currentReply->deleteLater();
+    }
+    currentReply = manager.get(request);
+    connect(currentReply, SIGNAL(readyRead()), this, SLOT(readyRead()));
+    connect(currentReply, SIGNAL(metaDataChanged()), this, SLOT(metaDataChanged()));
+    connect(currentReply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(error(QNetworkReply::NetworkError)));
+}
+
+/*
+    Starts fetching data from a news source specified in the line
+    edit widget.
+
+    The line edit is made read only to prevent the user from modifying its
+    contents during the fetch; this is only for cosmetic purposes.
+    The fetch button is disabled, the list view is cleared, and we
+    define the last list view item to be 0, meaning that there are no
+    existing items in the list.
+
+    A URL is created with the raw contents of the line edit and
+    a get is initiated.
+*/
+
+void RSSListing::fetch()
+{
+    lineEdit->setReadOnly(true);
+    fetchButton->setEnabled(false);
+    treeWidget->clear();
+
+    xml.clear();
+
+    QUrl url(lineEdit->text());
+    get(url);
+}
+
+void RSSListing::metaDataChanged()
+{
+    QUrl redirectionTarget = currentReply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
+    if (redirectionTarget.isValid()) {
+        get(redirectionTarget);
+    }
+}
+
+/*
+    Reads data received from the RDF source.
+
+    We read all the available data, and pass it to the XML
+    stream reader. Then we call the XML parsing function.
+*/
+
+void RSSListing::readyRead()
+{
+    int statusCode = currentReply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    if (statusCode >= 200 && statusCode < 300) {
+        QByteArray data = currentReply->readAll();
+        xml.addData(data);
+        parseXml();
+    }
+}
+
+/*
+    Finishes processing an HTTP request.
+
+    The default behavior is to keep the text edit read only.
+
+    If an error has occurred, the user interface is made available
+    to the user for further input, allowing a new fetch to be
+    started.
+
+    If the HTTP get request has finished, we make the
+    user interface available to the user for further input.
+*/
+
+void RSSListing::finished(QNetworkReply *reply)
+{
+    Q_UNUSED(reply);
+    lineEdit->setReadOnly(false);
+    fetchButton->setEnabled(true);
+}
+
+
+/*
+    Parses the XML data and creates treeWidget items accordingly.
+*/
+void RSSListing::parseXml()
+{
+    while (!xml.atEnd()) {
+        xml.readNext();
+        if (xml.isStartElement()) {
+            if (xml.name() == "item")
+                linkString = xml.attributes().value("rss:about").toString();
+            currentTag = xml.name().toString();
+        } else if (xml.isEndElement()) {
+            if (xml.name() == "item") {
+
+                QTreeWidgetItem *item = new QTreeWidgetItem;
+                item->setText(0, titleString);
+                item->setText(1, linkString);
+                treeWidget->addTopLevelItem(item);
+
+                titleString.clear();
+                linkString.clear();
+            }
+
+        } else if (xml.isCharacters() && !xml.isWhitespace()) {
+            if (currentTag == "title")
+                titleString += xml.text().toString();
+            else if (currentTag == "link")
+                linkString += xml.text().toString();
+        }
+    }
+    if (xml.error() && xml.error() != QXmlStreamReader::PrematureEndOfDocumentError) {
+        qWarning() << "XML ERROR:" << xml.lineNumber() << ": " << xml.errorString();
+    }
+}
+
+/*
+    Open the link in the browser
+*/
+void RSSListing::itemActivated(QTreeWidgetItem * item)
+{
+    QDesktopServices::openUrl(QUrl(item->text(1)));
+}
+
+void RSSListing::error(QNetworkReply::NetworkError)
+{
+    qWarning("error retrieving RSS feed");
+    currentReply->disconnect(this);
+    currentReply->deleteLater();
+    currentReply = 0;
+}
diff --git a/examples/xml/rsslisting/rsslisting.h b/examples/xml/rsslisting/rsslisting.h
new file mode 100644
index 0000000000..98254f839b
--- /dev/null
+++ b/examples/xml/rsslisting/rsslisting.h
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef RSSLISTING_H
+#define RSSLISTING_H
+
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QWidget>
+#include <QBuffer>
+#include <QXmlStreamReader>
+#include <QUrl>
+
+QT_BEGIN_NAMESPACE
+class QLineEdit;
+class QTreeWidget;
+class QTreeWidgetItem;
+class QPushButton;
+QT_END_NAMESPACE
+
+class RSSListing : public QWidget
+{
+    Q_OBJECT
+public:
+    RSSListing(QWidget *widget = 0);
+
+public slots:
+    void fetch();
+    void finished(QNetworkReply *reply);
+    void readyRead();
+    void metaDataChanged();
+    void itemActivated(QTreeWidgetItem * item);
+    void error(QNetworkReply::NetworkError);
+
+private:
+    void parseXml();
+    void get(const QUrl &url);
+
+    QXmlStreamReader xml;
+    QString currentTag;
+    QString linkString;
+    QString titleString;
+
+    QNetworkAccessManager manager;
+    QNetworkReply *currentReply;
+
+    QLineEdit *lineEdit;
+    QTreeWidget *treeWidget;
+    QPushButton *fetchButton;
+};
+
+#endif
+
diff --git a/examples/xml/rsslisting/rsslisting.pro b/examples/xml/rsslisting/rsslisting.pro
new file mode 100644
index 0000000000..01bc9e2ad6
--- /dev/null
+++ b/examples/xml/rsslisting/rsslisting.pro
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+HEADERS += rsslisting.h
+SOURCES += main.cpp rsslisting.cpp
+QT += network xml
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/xml/rsslisting
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS rsslisting.pro 
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/xml/rsslisting
+INSTALLS += target sources
+
+symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri)
+