Qt 4.8: xmlhttprequest-example.qml Example File (declarative/xml/xmlhttprequest/xmlhttprequest-example.qml)

Qt Reference Documentation

- Qt 4.8
- ALL VERSIONS

- A
- A
- A
- Print

# xmlhttprequest-example.qml Example File

declarative/xml/xmlhttprequest/xmlhttprequest-example.qml

     /****************************************************************************
     **
     ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** 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 Digia Plc 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."
     **
     ** $QT_END_LICENSE$
     **
     ****************************************************************************/

     import QtQuick 1.0

     Rectangle {
         width: 350; height: 400

         function showRequestInfo(text) {
             log.text = log.text + "\n" + text
             console.log(text)
         }

         Text { id: log; anchors.fill: parent; anchors.margins: 10 }

         Rectangle {
             id: button
             anchors.horizontalCenter: parent.horizontalCenter; anchors.bottom: parent.bottom; anchors.margins: 10
             width: buttonText.width + 10; height: buttonText.height + 10
             border.width: mouseArea.pressed ? 2 : 1
             radius : 5; smooth: true

             Text { id: buttonText; anchors.centerIn: parent; text: "Request data.xml" }

             MouseArea {
                 id: mouseArea
                 anchors.fill: parent
                 onClicked: {
                     log.text = ""
                     console.log("\n")

                     var doc = new XMLHttpRequest();
                     doc.onreadystatechange = function() {
                         if (doc.readyState == XMLHttpRequest.HEADERS_RECEIVED) {
                             showRequestInfo("Headers -->");
                             showRequestInfo(doc.getAllResponseHeaders ());
                             showRequestInfo("Last modified -->");
                             showRequestInfo(doc.getResponseHeader ("Last-Modified"));

                         } else if (doc.readyState == XMLHttpRequest.DONE) {
                             var a = doc.responseXML.documentElement;
                             for (var ii = 0; ii < a.childNodes.length; ++ii) {
                                 showRequestInfo(a.childNodes[ii].nodeName);
                             }
                             showRequestInfo("Headers -->");
                             showRequestInfo(doc.getAllResponseHeaders ());
                             showRequestInfo("Last modified -->");
                             showRequestInfo(doc.getResponseHeader ("Last-Modified"));
                         }
                     }

                     doc.open("GET", "data.xml");
                     doc.send();
                 }
             }
         }
     }