Add rssfetcher.

2009-05-12 09:48:41 +02:00
parent f56bdcd5ef
commit d3c8f2f03b
2 changed files with 176 additions and 0 deletions
--- a/src/plugins/coreplugin/rssfetcher.cpp
+++ b/src/plugins/coreplugin/rssfetcher.cpp
@@ -0,0 +1,101 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+**************************************************************************/
+
+#include <QtCore/QDebug>
+#include <QtGui/QDesktopServices>
+#include <QtGui/QLineEdit>
+#include <QtNetwork/QHttp>
+
+#include "rssfetcher.h"
+
+using namespace Core::Internal;
+
+RSSFetcher::RSSFetcher(int maxItems, QObject *parent)
+    : QObject(parent), m_items(0), m_maxItems(maxItems)
+{
+    connect(&m_http, SIGNAL(readyRead(const QHttpResponseHeader &)),
+             this, SLOT(readData(const QHttpResponseHeader &)));
+
+    connect(&m_http, SIGNAL(requestFinished(int, bool)),
+             this, SLOT(finished(int, bool)));
+}
+
+void RSSFetcher::fetch(const QUrl &url)
+{
+    m_http.setHost(url.host());
+    m_connectionId = m_http.get(url.path());
+}
+
+void RSSFetcher::readData(const QHttpResponseHeader &resp)
+{
+    if (resp.statusCode() != 200)
+        m_http.abort();
+    else {
+        m_xml.addData(m_http.readAll());
+        parseXml();
+    }
+}
+
+void RSSFetcher::finished(int id, bool error)
+{
+    m_items = 0;
+    emit finished(error);
+}
+
+void RSSFetcher::parseXml()
+{
+    while (!m_xml.atEnd()) {
+        m_xml.readNext();
+        if (m_xml.isStartElement()) {
+            if (m_xml.name() == "item")
+                m_linkString = m_xml.attributes().value("rss:about").toString();
+            m_currentTag = m_xml.name().toString();
+        } else if (m_xml.isEndElement()) {
+            if (m_xml.name() == "item") {
+                m_items++;
+                if (m_items > m_maxItems)
+                    return;
+
+                emit newsItemReady(m_titleString, m_linkString);
+                m_titleString.clear();
+                m_linkString.clear();
+            }
+
+        } else if (m_xml.isCharacters() && !m_xml.isWhitespace()) {
+            if (m_currentTag == "title")
+                m_titleString += m_xml.text().toString();
+            else if (m_currentTag == "link")
+                m_linkString += m_xml.text().toString();
+        }
+    }
+    if (m_xml.error() && m_xml.error() != QXmlStreamReader::PrematureEndOfDocumentError) {
+        qWarning() << "XML ERROR:" << m_xml.lineNumber() << ": " << m_xml.errorString();
+        m_http.abort();
+    }
+}