#841 - cross-browser XML DOM methods for creation, traversal, reading, and writing - see the xml.html example for use
git-svn-id: http://svn.openlayers.org/trunk/openlayers@3862 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
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examples/xml.html
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145
examples/xml.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/2000/REC-xhtml1-20000126/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>XML Parsing Example</title>
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<style type="text/css">
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body {
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margin: 0 2em;
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font-family: sans-serif;
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}
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#output {
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font-family: monospace;
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background-color: #efefef;
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font-size: 0.9em;
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padding: 1em;
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}
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span.code {
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font-family: monospace;
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background-color: #efefef;
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font-size: 0.9em;
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padding: 0.25em;
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line-height: 1.5em;
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}
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ul {
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margin: 0;
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padding: 0 0 1em 1.5em;
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}
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ul li {
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padding-left: 0;
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}
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</style>
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<script src="../lib/Firebug/firebug.js" type="text/javascript"></script>
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<script src="../lib/OpenLayers.js" type="text/javascript"></script>
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<script type="text/javascript">
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//<![CDATA[
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var format = new OpenLayers.Format.XML();
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var doc = null;
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function init() {
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var url = "xml/features.xml";
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OpenLayers.loadURL(url, null, null, loadSuccess, loadFailure);
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}
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function loadSuccess(request) {
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updateStatus("loaded");
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if(!request.responseXML.documentElement) {
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doc = format.read(request.responseText);
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} else {
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doc = request.responseXML;
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}
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}
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function loadFailure(request) {
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updateStatus("failed to load");
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}
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function updateStatus(msg) {
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document.getElementById("loadStatus").firstChild.nodeValue = msg;
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}
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function updateOutput(text) {
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document.getElementById("output").firstChild.nodeValue = text;
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}
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function write() {
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var text = format.write(doc);
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updateOutput(text);
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}
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function getElementsByTagNameNS(node, uri, name) {
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var nodes = format.getElementsByTagNameNS(node, uri, name);
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var pieces = [];
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for(var i=0; i<nodes.length; ++i) {
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pieces.push(format.write(nodes[i]));
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}
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updateOutput(pieces.join(' '));
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}
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function hasAttributeNS(node, uri, name) {
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updateOutput(format.hasAttributeNS(node, uri, name))
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}
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function getAttributeNodeNS(node, uri, name) {
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var attributeNode = format.getAttributeNodeNS(node, uri, name);
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updateOutput(attributeNode.nodeName + ' = "' +
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attributeNode.nodeValue + '"');
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}
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function getAttributeNS(node, uri, name) {
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var attributeValue = format.getAttributeNS(node, uri, name);
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updateOutput('"' + attributeValue + '"')
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}
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function createElementNS(uri, name) {
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var node = format.createElementNS(uri, name);
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doc.documentElement.appendChild(node);
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write();
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}
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function createTextNode(text) {
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var node = format.createTextNode(text);
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doc.documentElement.appendChild(node);
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write();
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}
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window.onload = init;
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//]]>
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</script>
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</head>
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<body>
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<h3>OpenLayers XML Example</h3>
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<p>OpenLayers has a very simple XML format class (OpenLayers.Format.XML)
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that can be used to read/write XML docs. The methods available on the
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XML format (or parser if you like) allow for reading and writing of the
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various XML flavors used by the library - in particular the vector data
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formats. It is by no means intended to be a full-fledged XML toolset.
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Additional methods will be added only as needed elsewhere in the
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library.</p>
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<p>This page loads an XML document and demonstrates a few of the methods
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available in the parser.</p>
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<p>Status: <b>XML document <span id="loadStatus">loading..</span>.</b></p>
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<p>After the XML document loads, see the result of a few of the methods
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below. Assume that you start with the following code:
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<br />
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<span class="code">
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var format = new OpenLayers.Format.XML();
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</span>
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</p>
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Sample methods
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<ul>
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<li><a href="javascript:void write();">format.write()</a> - write the XML doc as text</li>
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<li><a href="javascript:void getElementsByTagNameNS(doc, 'http://www.opengis.net/gml', 'MultiPolygon');">format.getElementsByTagNameNS()</a> - get all gml:MultiPolygon</li>
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<li><a href="javascript:void hasAttributeNS(doc.documentElement, 'http://www.w3.org/2001/XMLSchema-instance', 'schemaLocation');">format.hasAttributeNS()</a> - test to see schemaLocation attribute exists in the http://www.w3.org/2001/XMLSchema-instance namespace</li>
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<li><a href="javascript:void getAttributeNodeNS(doc.documentElement, 'http://www.w3.org/2001/XMLSchema-instance', 'schemaLocation');">format.getAttributeNodeNS()</a> - get schemaLocation attribute in the http://www.w3.org/2001/XMLSchema-instance namespace</li>
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<li><a href="javascript:void getAttributeNS(doc.documentElement, 'http://www.w3.org/2001/XMLSchema-instance', 'schemaLocation');">format.getAttributeNS()</a> - get schemaLocation attribute value in the http://www.w3.org/2001/XMLSchema-instance namespace</li>
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<li><a href="javascript:void createElementNS('http://bar.com/foo', 'foo:TestNode');">format.createElementNS()</a> - create a foo:TestNode element (and append it to the doc)</li>
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<li><a href="javascript:void createTextNode('test text ');">format.createTextNode()</a> - create a text node (and append it to the doc)</li>
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</ul>
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Output:
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<div id="output"> </div>
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</body>
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</html>
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