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examples/declarative/xml/xmlhttprequest/xmlhttprequest-example.qml

Aug 13th, 2011
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  1. /****************************************************************************
  2. **
  3. ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
  4. ** All rights reserved.
  5. ** Contact: Nokia Corporation (qt-info@nokia.com)
  6. **
  7. ** This file is part of the examples of the Qt Toolkit.
  8. **
  9. ** $QT_BEGIN_LICENSE:BSD$
  10. ** You may use this file under the terms of the BSD license as follows:
  11. **
  12. ** "Redistribution and use in source and binary forms, with or without
  13. ** modification, are permitted provided that the following conditions are
  14. ** met:
  15. ** * Redistributions of source code must retain the above copyright
  16. ** notice, this list of conditions and the following disclaimer.
  17. ** * Redistributions in binary form must reproduce the above copyright
  18. ** notice, this list of conditions and the following disclaimer in
  19. ** the documentation and/or other materials provided with the
  20. ** distribution.
  21. ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
  22. ** the names of its contributors may be used to endorse or promote
  23. ** products derived from this software without specific prior written
  24. ** permission.
  25. **
  26. ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  27. ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  28. ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  29. ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  30. ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  31. ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  32. ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  33. ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  34. ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35. ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  36. ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
  37. ** $QT_END_LICENSE$
  38. **
  39. ****************************************************************************/
  40.  
  41. import QtQuick 1.0
  42.  
  43. Rectangle {
  44. width: 350; height: 400
  45.  
  46. function showRequestInfo(text) {
  47. log.text = log.text "\n" text
  48. console.log(text)
  49. }
  50.  
  51. Text { id: log; anchors.fill: parent; anchors.margins: 10 }
  52.  
  53. Rectangle {
  54. id: button
  55. anchors.horizontalCenter: parent.horizontalCenter; anchors.bottom: parent.bottom; anchors.margins: 10
  56. width: buttonText.width 10; height: buttonText.height 10
  57. border.width: mouseArea.pressed ? 2 : 1
  58. radius : 5; smooth: true
  59.  
  60. Text { id: buttonText; anchors.centerIn: parent; text: "Request data.xml" }
  61.  
  62. MouseArea {
  63. id: mouseArea
  64. anchors.fill: parent
  65. onClicked: {
  66. log.text = ""
  67. console.log("\n")
  68.  
  69. var doc = new XMLHttpRequest();
  70. doc.onreadystatechange = function() {
  71. if (doc.readyState == XMLHttpRequest.HEADERS_RECEIVED) {
  72. showRequestInfo("Headers -->");
  73. showRequestInfo(doc.getAllResponseHeaders ());
  74. showRequestInfo("Last modified -->");
  75. showRequestInfo(doc.getResponseHeader ("Last-Modified"));
  76.  
  77. } else if (doc.readyState == XMLHttpRequest.DONE) {
  78. var a = doc.responseXML.documentElement;
  79. for (var ii = 0; ii < a.childNodes.length; ii) {
  80. showRequestInfo(a.childNodes[ii].nodeName);
  81. }
  82. showRequestInfo("Headers -->");
  83. showRequestInfo(doc.getAllResponseHeaders ());
  84. showRequestInfo("Last modified -->");
  85. showRequestInfo(doc.getResponseHeader ("Last-Modified"));
  86. }
  87. }
  88.  
  89. doc.open("GET", "data.xml");
  90. doc.send();
  91. }
  92. }
  93. }
  94. }
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