1 files changed, 177 insertions, 0 deletions
diff --git a/examples/RSSListing.js b/examples/RSSListing.js
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+++ b/examples/RSSListing.js
@@ -0,0 +1,177 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Script Generator project on Qt Labs.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+function tr(s) { return s; }
+
+
+function RSSListing(parent)
+{
+    QWidget.call(this, parent);
+
+    this.xml = new QXmlStreamReader();
+    this.currentTag = "";
+    this.linkString = "";
+    this.titleString = "";
+    this.connectionId = -1;
+
+    this.lineEdit = new QLineEdit(this);
+    this.lineEdit.text = "http://labs.trolltech.com/blogs/feed";
+
+    this.fetchButton = new QPushButton(tr("Fetch"), this);
+    this.abortButton = new QPushButton(tr("Abort"), this);
+    this.abortButton.enabled = false;
+
+    this.treeWidget = new QTreeWidget(this);
+    this.treeWidget["itemActivated(QTreeWidgetItem*, int)"].connect(
+        this, this.itemActivated);
+    var headerLabels = new Array();
+    headerLabels.push(tr("Title"));
+    headerLabels.push(tr("Link"));
+    this.treeWidget.setHeaderLabels(headerLabels);
+    this.treeWidget.header().setResizeMode(QHeaderView.ResizeToContents);
+
+    this.http = new QHttp(this);
+    this.http.readyRead.connect(this, this.readData);
+    this.http.requestFinished.connect(this, this.finished);
+
+    this.lineEdit.returnPressed.connect(this, this.fetch);
+    this.fetchButton.clicked.connect(this, this.fetch);
+    this.abortButton.clicked.connect(this.http, this.http.abort);
+
+    var layout = new QVBoxLayout(this);
+
+    var hboxLayout = new QHBoxLayout();
+
+    // ### working around problem with addWidget() binding
+    hboxLayout.addWidget(this.lineEdit, 0, Qt.AlignLeft);
+    hboxLayout.addWidget(this.fetchButton, 0, Qt.AlignLeft);
+    hboxLayout.addWidget(this.abortButton, 0, Qt.AlignLeft);
+
+    layout.addLayout(hboxLayout);
+    layout.addWidget(this.treeWidget, 0, Qt.AlignLeft);
+
+    this.windowTitle = tr("RSS listing example");
+    this.resize(640,480);
+}
+
+RSSListing.prototype = new QWidget();
+
+RSSListing.prototype.fetch = function()
+{
+    this.lineEdit.readOnly = true;
+    this.fetchButton.enabled = false;
+    this.abortButton.enabled = true;
+    this.treeWidget.clear();
+
+    this.xml.clear();
+
+    var url = new QUrl(this.lineEdit.text);
+
+    this.http.setHost(url.host());
+    this.connectionId = this.http.get(url.path());
+}
+
+RSSListing.prototype.readData = function(resp)
+{
+    if (resp.statusCode() != 200)
+        this.http.abort();
+    else {
+        this.xml.addData(this.http.readAll());
+        this.parseXml();
+    }
+}
+
+RSSListing.prototype.finished = function(id, error)
+{
+    if (error) {
+        print("Received error during HTTP fetch."); // ### qWarning()
+        this.lineEdit.readOnly = false;
+        this.abortButton.enabled = false;
+        this.fetchButton.enabled = true;
+    } else if (id == this.connectionId) {
+        this.lineEdit.readOnly = false;
+        this.abortButton.enabled = false;
+        this.fetchButton.enabled = true;
+    }
+}
+
+RSSListing.prototype.parseXml = function()
+{
+    while (!this.xml.atEnd()) {
+        this.xml.readNext();
+        if (this.xml.isStartElement()) {
+            if (this.xml.name() == "item")
+                this.linkString = this.xml.attributes().value("rss:about").toString();
+            this.currentTag = this.xml.name().toString();
+        } else if (this.xml.isEndElement()) {
+            if (this.xml.name() == "item") {
+
+                var item = new QTreeWidgetItem();
+                item.setText(0, this.titleString);
+                item.setText(1, this.linkString);
+                this.treeWidget.addTopLevelItem(item);
+
+                this.titleString = "";
+                this.linkString = "";
+            }
+
+        } else if (this.xml.isCharacters() && !this.xml.isWhitespace()) {
+            if (this.currentTag == "title")
+                this.titleString += this.xml.text().toString();
+            else if (this.currentTag == "link")
+                this.linkString += this.xml.text().toString();
+        }
+    }
+    if (this.xml.hasError() && (this.xml.error() != QXmlStreamReader.PrematureEndOfDocumentError)) {
+        print("XML ERROR:", this.xml.lineNumber() + ":", this.xml.errorString());
+        this.http.abort();
+    }
+}
+
+RSSListing.prototype.itemActivated = function(item)
+{
+    QDesktopServices.openUrl(new QUrl(item.text(1)));
+}
+
+
+var rsslisting = new RSSListing();
+rsslisting.show();
+QCoreApplication.exec();