Qt 5.8 | Qt QML | Qt Quick Examples - XMLHttpRequest | get.qml Example File

Qt 5.8.0 Reference Documentation

# get.qml Example File

xmlhttprequest/get.qml

      /****************************************************************************
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      ** This file is part of the examples of the Qt Toolkit.
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      import QtQuick 2.0

      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; antialiasing: 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();
                  }
              }
          }
      }