Changeset 846 for trunk/examples/xml/rsslisting/rsslisting.cpp

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• examples/xml/rsslisting/rsslisting.cpp (modified) (14 diffs)

trunk/examples/xml/rsslisting/rsslisting.cpp

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 201 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation ([email protected])
@@ -7 +7 @@
 ** This file is part of the examples of the Qt Toolkit.
 **
-** $QT_BEGIN_LICENSE:LGPL$
-** 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.
-**
-** 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.
-**
-** 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 have questions regarding the use of this file, please contact
-** Nokia at [email protected].
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
 ** $QT_END_LICENSE$
 **
@@ -67 +66 @@
     up the XML reader to use a custom handler class.
 
-    The user interface consists of a line edit, two push buttons, and a
+    The user interface consists of a line edit, , and a
     list view widget. The line edit is used for entering the URLs of news
-    sources; the push buttons start and abort the process of reading the
+    sources; the push button the process of reading the
     news.
 */
 
 RSSListing::RSSListing(QWidget *parent)
-    : QWidget(parent)
+    : QWidget(parent)
 {
     lineEdit = new QLineEdit(this);
@@ -80 +79 @@
 
     fetchButton = new QPushButton(tr("Fetch"), this);
-    abortButton = new QPushButton(tr("Abort"), this);
-    abortButton->setEnabled(false);
 
     treeWidget = new QTreeWidget(this);
@@ -91 +88 @@
     treeWidget->header()->setResizeMode(QHeaderView::ResizeToContents);
 
-    connect(&http, SIGNAL(readyRead(QHttpResponseHeader)),
-             this, SLOT(readData(QHttpResponseHeader)));
-
-    connect(&http, SIGNAL(requestFinished(int,bool)),
-             this, SLOT(finished(int,bool)));
+    connect(&manager, SIGNAL(finished(QNetworkReply*)),
+             this, SLOT(finished(QNetworkReply*)));
 
     connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(fetch()));
     connect(fetchButton, SIGNAL(clicked()), this, SLOT(fetch()));
-    connect(abortButton, SIGNAL(clicked()), &http, SLOT(abort()));
 
     QVBoxLayout *layout = new QVBoxLayout(this);
@@ -107 +100 @@
     hboxLayout->addWidget(lineEdit);
     hboxLayout->addWidget(fetchButton);
-    hboxLayout->addWidget(abortButton);
 
     layout->addLayout(hboxLayout);
@@ -117 +109 @@
 
 /*
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
     Starts fetching data from a news source specified in the line
     edit widget.
@@ -122 +130 @@
     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, and the abort button is enabled to allow
-    the user to interrupt processing. The list view is cleared, and we
+    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.
 
-    The HTTP handler is supplied with the raw contents of the line edit and
-    a fetch is initiated. We keep the ID value returned by the HTTP handler
-    for future reference.
+    A URL is created with the raw contents of the line edit and
+    a get is initiated.
 */
 
@@ -136 +142 @@
     lineEdit->setReadOnly(true);
     fetchButton->setEnabled(false);
-    abortButton->setEnabled(true);
     treeWidget->clear();
 
@@ -142 +147 @@
 
     QUrl url(lineEdit->text());
-
-    http.setHost(url.host());
-    connectionId = http.get(url.path());
+    get(url);
+}
+
+void RSSListing::metaDataChanged()
+{
+    QUrl redirectionTarget = currentReply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
+    if (redirectionTarget.isValid()) {
+        get(redirectionTarget);
+    }
 }
 
@@ -152 +163 @@
     We read all the available data, and pass it to the XML
     stream reader. Then we call the XML parsing function.
-
-    If parsing fails for any reason, we abort the fetch.
-*/
-
-void RSSListing::readData(const QHttpResponseHeader &resp)
-{
-    if (resp.statusCode() != 200)
-        http.abort();
-    else {
-        xml.addData(http.readAll());
+*/
+
+void RSSListing::readyRead()
+{
+    int statusCode = currentReply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    if (statusCode >= 200 && statusCode < 300) {
+        QByteArray data = currentReply->readAll();
+        xml.addData(data);
         parseXml();
     }
@@ -179 +188 @@
 */
 
-void RSSListing::finished(int id, bool error)
-{
-    if (error) {
-        qWarning("Received error during HTTP fetch.");
-        lineEdit->setReadOnly(false);
-        abortButton->setEnabled(false);
-        fetchButton->setEnabled(true);
-    }
-    else if (id == connectionId) {
-        lineEdit->setReadOnly(false);
-        abortButton->setEnabled(false);
-        fetchButton->setEnabled(true);
-    }
+void RSSListing::finished(QNetworkReply *reply)
+{
+    Q_UNUSED(reply);
+    lineEdit->setReadOnly(false);
+    fetchButton->setEnabled(true);
 }
 
@@ -227 +228 @@
     if (xml.error() && xml.error() != QXmlStreamReader::PrematureEndOfDocumentError) {
         qWarning() << "XML ERROR:" << xml.lineNumber() << ": " << xml.errorString();
-        http.abort();
     }
 }
@@ -238 +238 @@
     QDesktopServices::openUrl(QUrl(item->text(1)));
 }
+
+
+
+
+
+
+
+