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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<script type="text/javascript">
// see http://stackoverflow.com/questions/1206937/javascript-domready
var domLoaded = function(callback) {
/* Internet Explorer */
/*@cc_on
@if (@_win32 || @_win64)
document.write('<script id="ieScriptLoad" defer src="//:"><\/script>');
document.getElementById('ieScriptLoad').onreadystatechange = function() {
if (this.readyState == 'complete') {
var head= document.getElementsByTagName('head')[0];
var script= document.createElement('script');
script.type= 'text/javascript';
script.src= 'http://wicked-good-xpath.googlecode.com/files/wgxpath.install.js';
head.appendChild(script);
wgxpath.install();
// see http://stackoverflow.com/questions/1811116/ie-support-for-dom-importnode
document.importNode = function(node, allChildren) {
switch (node.nodeType) {
case document.ELEMENT_NODE:
var newNode = document.createElementNS(node.namespaceURI, node.nodeName);
if(node.attributes && node.attributes.length > 0)
for(var i = 0, il = node.attributes.length; i < il; i++)
newNode.setAttribute(node.attributes[i].nodeName, node.getAttribute(node.attributes[i].nodeName));
if(allChildren && node.childNodes && node.childNodes.length > 0)
for(var i = 0, il = node.childNodes.length; i < il; i++)
newNode.appendChild(document.importNode(node.childNodes[i], allChildren));
return newNode;
break;
case document.TEXT_NODE:
case document.CDATA_SECTION_NODE:
case document.COMMENT_NODE:
return document.createTextNode(node.nodeValue);
break;
}
}
callback();
}
};
@end @*/
/* Mozilla, Chrome, Opera */
if (document.addEventListener) {
document.addEventListener('DOMContentLoaded', callback, false);
return;
}
/* Safari, iCab, Konqueror */
if (/KHTML|WebKit|iCab/i.test(navigator.userAgent)) {
var DOMLoadTimer = setInterval(function () {
if (/loaded|complete/i.test(document.readyState)) {
callback();
clearInterval(DOMLoadTimer);
}
}, 10);
return;
}
/* Other web browsers */
window.onload = callback;
};
</script>
<script type="text/javascript">
function CometSession(options) {
/**
* Support for two-channel asynchronous http communication
*/
for (var key in options) {
if (options.hasOwnProperty(key)) {
this[key] = options[key];
}
}
var self = this;
this.xhr = (window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("MSXML2.XMLHTTP.3.0"));
this.cometPoll = (window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("MSXML2.XMLHTTP.3.0"));
this.createUUID = function() {
// http://www.ietf.org/rfc/rfc4122.txt
var s = [];
var hexDigits = "0123456789abcdef";
for (var i = 0; i < 36; i++) {
s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
}
s[14] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
s[8] = s[13] = s[18] = s[23] = "-";
var uuid = s.join("");
return uuid;
}
this.longpoll = function() {
self.cometPoll.onreadystatechange = function() {
if (self.cometPoll.readyState === 4) {
if (self.cometPoll.status !== 200) {
self.longpoll();
return;
}
self.onRcvd(self.cometPoll);
self.longpoll();
}
};
// use token until we have a context
self.cometPoll.open("GET", self.server + (self.query ? "?" + self.query : ""));
self.cometPoll.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
self.cometPoll.setRequestHeader("Connection", "close");
self.cometPoll.send(null);
};
this.post = function(name, data) {
self.xhr.open("POST", self.server + (self.query ? "?" + self.query : ""));
self.xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
self.xhr.setRequestHeader('X-SCXML-Name', name);
self.xhr.send(data);
}
// serialize an object to be send
this.send = function(name, thing) {
var data;
// see also: https://raw.github.com/douglascrockford/JSON-js/master/cycle.js
// dispatch over thingy type here
if (typeof thing === "object") {
var seen = [];
// will not work on opera as thing is checked for cycles first
data = JSON.stringify(thing, function(key, val) {
if (isNode(val)) {
// return a selection of attributes
return {
id: val.id,
tagName: val.tagName,
localName: val.localName
};
}
if (isWindow(val)) {
return;
}
if (typeof val === "object") {
if (seen.indexOf(val) >= 0)
return;
seen.push(val)
}
return val
});
} else {
data = thing;
}
this.post(name, data);
}
// helper function to determine whether something is a html node
var isNode = function(o){
return (
typeof Node === "object" ? o instanceof Node :
o && typeof o === "object" && typeof o.nodeType === "number" && typeof o.nodeName==="string"
);
}
// helper function to determine whether something is a window
var isWindow = function(o){
return (
typeof Window === "object" ? o instanceof Window :
o && typeof o === "object" && typeof o.menubar === "object"
);
}
}
</script>
<script type="text/javascript">
domLoaded(function () {
scxml = new CometSession({
element: document.getElementById("${scxml.invokeId}"),
server: "${scxml.server}",
onRcvd : function(data) {
if (data.responseXML) {
var type = data.getResponseHeader("X-SCXML-Type") || "replacechildren";
var domTarget = data.getResponseHeader("X-SCXML-XPath") || "/html/body";
var domAttr = data.getResponseHeader("X-SCXML-Attr");
var result = document.evaluate(domTarget, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
for (var i = 0, l = result.snapshotLength; i < l; i++) {
var item = result.snapshotItem(i);
var node = document.importNode(data.responseXML.firstChild, true);
switch (type) {
case "firstchild":
item.insertBefore(node, item.firstChild);
break;
case "lastchild":
item.appendChild(node);
break;
case "previoussibling":
item.parentNode.insertBefore(node, item);
break;
case "nextsibling":
item.parentNode.insertBefore(node, item.nextSibling);
break;
case "replace":
item.parentNode.replaceChild(node, item);
break;
case "delete":
item.parentNode.removeChild(item);
break;
case "addattribute":
item.setAttribute(domAttr, node);
break;
case "replacechildren":
while(item.hasChildNodes()) {
item.removeChild(item.firstChild);
}
item.appendChild(node);
default:
break;
}
}
}
}
});
scxml.longpoll();
});
</script>
</head>
<body></body>
</html>
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