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Jacek Pyziak
2024-12-12 15:33:18 +01:00
commit 2c8998663e
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296
resources/xajax/xajax_plugins/response/comet/comet.inc.php Normal file
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<?php
define('FILE_APPEND', 1);
/*
File: comet.inc.php
Title: clsCometStreaming class
*/
if (false == class_exists('xajaxPlugin') || false == class_exists('xajaxPluginManager'))
{
$sBaseFolder = dirname(dirname(dirname(__FILE__)));
$sXajaxCore = $sBaseFolder . '/xajax_core';
if (false == class_exists('xajaxPlugin'))
require $sXajaxCore . '/xajaxPlugin.inc.php';
if (false == class_exists('xajaxPluginManager'))
require $sXajaxCore . '/xajaxPluginManager.inc.php';
}
/*
Class: clsCometStreaming
*/
class clsCometStreaming extends xajaxResponsePlugin
{
/*
String: sDefer
Used to store the state of the scriptDeferral configuration setting. When
script deferral is desired, this member contains 'defer' which will request
that the browser defer loading of the javascript until the rest of the page
has been loaded.
*/
var $sDefer;
/*
String: sJavascriptURI
Used to store the base URI for where the javascript files are located. This
enables the plugin to generate a script reference to it's javascript file
if the javascript code is NOT inlined.
*/
var $sJavascriptURI;
/*
Boolean: bInlineScript
Used to store the value of the inlineScript configuration option. When true,
the plugin will return it's javascript code as part of the javascript header
for the page, else, it will generate a script tag referencing the file by
using the <clsTableUpdater->sJavascriptURI>.
*/
var $bInlineScript;
var $fTimeOut;
/*
Function: clsTableUpdater
Constructs and initializes an instance of the table updater class.
*/
function clsCometStreaming()
{
$this->sDefer = '';
$this->sJavascriptURI = '';
$this->bInlineScript = false;
}
/*
Function: configure
Receives configuration settings set by <xajax> or user script calls to
<xajax->configure>.
sName - (string): The name of the configuration option being set.
mValue - (mixed): The value being associated with the configuration option.
*/
function configure($sName, $mValue)
{
if ('scriptDeferral' == $sName) {
if (true === $mValue || false === $mValue) {
if ($mValue) $this->sDefer = 'defer ';
else $this->sDefer = '';
}
} else if ('javascript URI' == $sName) {
$this->sJavascriptURI = $mValue;
} else if ('inlineScript' == $sName) {
if (true === $mValue || false === $mValue)
$this->bInlineScript = $mValue;
} else if ('cometsleeptimout' == strtolower($sName) ) {
if ( is_numeric($mValue) )
$this->fTimeOut = $mValue;
}
}
/*
Function: generateClientScript
Called by the <xajaxPluginManager> during the script generation phase.
*/
function generateClientScript()
{
if ($this->bInlineScript)
{
echo "\n<script type='text/javascript' " . $this->sDefer . "charset='UTF-8'>\n";
echo "/* <![CDATA[ */\n";
include(dirname(__FILE__) . 'xajax_plugins/response/comet/comet.js');
echo "/* ]]> */\n";
echo "</script>\n";
} else {
echo "\n<script type='text/javascript' src='" . $this->sJavascriptURI . "xajax_plugins/response/comet/comet.js' " . $this->sDefer . "charset='UTF-8'></script>\n";
}
}
}
class xajaxCometResponse extends xajaxResponse
{
var $bHeaderSent = false;
var $fTimeOut=1;
/*
Function: xajaxCometResponse
calls parent function xajaxResponse();
*/
function xajaxCometResponse($fTimeOut=false)
{
if ( false != $fTimeOut ) $this->fTimeOut=$fTimeOut;
parent::__construct();
}
/*
Function: printOutput
override the original printOutput function. It's no longer needed since the output is already sent.
*/
function printOutput()
{
$this->flush();
if ( "HTML5DRAFT" == $_REQUEST['xjxstreaming']) {
$response = "";
$response .= "Event: xjxendstream\n";
$response .= "data: done\n";
$response .= "\n";
print $response;
}
}
/*
Function: flush_XHR
Flushes the command queue for comet browsers.
*/
function flush_XHR()
{
if (!$this->bHeaderSent)
{
$this->_sendHeaders();
$this->bHeaderSent=true;
}
ob_start();
$this->_printResponse_XML();
$c = ob_get_contents();
ob_get_clean();
$c = str_replace(chr(1)," ",$c);
$c = str_replace(chr(2)," ",$c);
$c = str_replace(chr(31)," ",$c);
$c = str_replace(""," ",$c);
if ($c == "<xjx></xjx>") return false;
print $c;
ob_flush();
flush();
$this->sleep( $this->fTimeOut );
}
/*
Function: flush_activeX
Flushes the command queue for ActiveX browsers.
*/
function flush_activeX()
{
ob_start();
$this->_printResponse_XML();
$c = ob_get_contents();
ob_end_clean();
$c = '<?xml version="1.0" ?>'.$c;
$c = str_replace('"','\"',$c);
$c = str_replace("\n",'\n',$c);
$c = str_replace("\r",'\r',$c);
$response = "";
$response .= "<script>top.document.callback(\"";
$response .= $c;
$response .= "\");</script>";
print $response;
ob_flush();
flush();
$this->sleep( $this->fTimeOut-0.1 );
}
/*
Function: flush_HTML5DRAFT
Flushes the command queue for HTML5DRAFT browsers.
*/
function flush_HTML5DRAFT()
{
if (!$this->bHeaderSent)
{
header("Content-Type: application/x-dom-event-stream");
$this->bHeaderSent=1;
}
ob_start();
$this->_printResponse_XML();
$c = ob_get_contents();
ob_end_clean();
$c = str_replace("\n",'\n',$c);
$c = str_replace("\r",'\r',$c);
$response = "";
$response .= "Event: xjxstream\n";
$response .= "data: $c\n";
$response .= "\n";
print $response;
ob_flush();
flush();
$this->sleep( $this->fTimeOut );
}
/*
Function: flush
Determines which browser is wating for a response and calls the according flush function.
*/
function flush()
{
if (0 == count($this->aCommands)) return false;
if ("xhr" == $_SERVER['HTTP_STREAMING'])
{
$this->flush_XHR();
}
elseif ( "HTML5DRAFT" == $_REQUEST['xjxstreaming'])
{
$this->flush_HTML5DRAFT();
}
else
{
$this->flush_activeX();
}
$this->aCommands=array();
}
/*
Function: sleep
Very accurate sleep function.
*/
function sleep($seconds)
{
usleep(floor($seconds*1000000));
}
}
$objPluginManager =& xajaxPluginManager::getInstance();
$objPluginManager->registerPlugin(new clsCometStreaming());

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resources/xajax/xajax_plugins/response/comet/comet.js Normal file
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try{if(undefined==xajax.ext)
xajax.ext={};}
catch(e){}
try{if(undefined==xajax.ext.comet)
xajax.ext.comet={};}
catch(e){alert("Could not create xajax.ext.comet namespace");}
xjxEc=xajax.ext.comet;xjxEc.detectSupport=function(){var agt=navigator.userAgent.toLowerCase();if(agt.indexOf("opera")!=-1)
return 'Opera';if(agt.indexOf("staroffice")!=-1)
return 'Star Office';if(agt.indexOf("webtv")!=-1)
return 'WebTV';if(agt.indexOf("beonex")!=-1)
return 'Beonex';if(agt.indexOf("chimera")!=-1)
return 'Chimera';if(agt.indexOf("netpositive")!=-1)
return 'NetPositive';if(agt.indexOf("phoenix")!=-1)
return 'Phoenix';if(agt.indexOf("firefox")!=-1)
return 'Firefox';if(agt.indexOf("safari")!=-1)
return 'Safari';if(agt.indexOf("skipstone")!=-1)
return 'SkipStone';if(agt.indexOf("msie")!=-1)
return 'Internet Explorer';if(agt.indexOf("netscape")!=-1)
return 'Netscape';if(agt.indexOf("mozilla/5.0")!=-1)
return 'Mozilla';if(agt.indexOf('\/')!=-1){if(agt.substr(0,agt.indexOf('\/'))!='mozilla'){return navigator.userAgent.substr(0,agt.indexOf('\/'));}
else
return 'Netscape';}
else if(agt.indexOf(' ')!=-1)
return navigator.userAgent.substr(0,agt.indexOf(' '));else
return navigator.userAgent;return false;}
xjxEc.prepareRequestXHR=function(oRequest){if(true==oRequest.comet){var xx=xajax;var xt=xx.tools;oRequest.request=xt.getRequestObject();oRequest.setRequestHeaders=function(headers){if('object'==typeof headers){for(var optionName in headers)
this.request.setRequestHeader(optionName,headers[optionName]);}
}
oRequest.setCommonRequestHeaders=function(){this.setRequestHeaders(this.commonHeaders);}
oRequest.setPostRequestHeaders=function(){this.setRequestHeaders(this.postHeaders);}
oRequest.setGetRequestHeaders=function(){this.setRequestHeaders(this.getHeaders);}
oRequest.applyRequestHeaders=function(){}
oRequest.setCommonRequestHeaders=function(){this.request.setRequestHeader('If-Modified-Since','Sat, 1 Jan 2000 00:00:00 GMT');this.request.setRequestHeader('streaming','xhr');if(typeof(oRequest.header)=="object"){for(a in oRequest.header)
this.request.setRequestHeader(a,oRequest.header[a]);}
}
oRequest.comet={};oRequest.comet.LastPosition=0;oRequest.comet.inProgress=false;var pollLatestResponse=function(){console.log('pollLatestResponse');xjxEc.responseProcessor.XHR(oRequest);}
oRequest.pollTimer=setInterval(pollLatestResponse,300);oRequest.request.onreadystatechange=function(){if(oRequest.request.readyState < 3){console.log('readyState < 3');return;}
if(oRequest.request.readyState==4){console.log('readyState == 4');clearInterval(oRequest.pollTimer);xjxEc.responseProcessor.XHR(oRequest);xajax.completeResponse(oRequest);return;}
}
oRequest.finishRequest=function(){return this.returnValue;}
if('undefined'!=typeof oRequest.userName&&'undefined'!=typeof oRequest.password){oRequest.open=function(){this.request.open(this.method,this.requestURI,true,oRequest.userName,oRequest.password);}
}
else{oRequest.open=function(){this.request.open(this.method,this.requestURI,true);}
}
if('POST'==oRequest.method){oRequest.applyRequestHeaders=function(){this.setCommonRequestHeaders();try{this.setPostRequestHeaders();}
catch(e){this.method='GET';this.requestURI+=this.requestURI.indexOf('?')==-1 ? '?':'&';this.requestURI+=this.requestData;this.requestData='';if(0==this.requestRetry)
this.requestRetry=1;throw e;}
}
}
else{oRequest.applyRequestHeaders=function(){this.setCommonRequestHeaders();this.setGetRequestHeaders();}
}
return;}
return xjxEc.prepareRequest(oRequest);}
xjxEc.connect_htmlfile=function(url,callback,oRequest){try{xjxEc.transferDoc=new ActiveXObject("htmlfile");xjxEc.transferDoc.open();xjxEc.transferDoc.write("<html>");xjxEc.transferDoc.write("<script>document.domain='http://192.168.1.21/';</script>");xjxEc.transferDoc.write("</html>");xjxEc.transferDoc.close();xjxEc.ifrDiv=xjxEc.transferDoc.createElement("div");xjxEc.transferDoc.body.appendChild(xjxEc.ifrDiv);xjxEc.ifrDiv.innerHTML="<iframe src='"+url+"'></iframe>";xjxEc.transferDoc.callback=function(response){callback(response,oRequest);};}
catch(ex){}
}
xjxEc.prepareRequestActiveX=function(oRequest){if(true==oRequest.comet){var xx=xajax;var xt=xx.tools;oRequest.requestURI+=oRequest.requestURI.indexOf('?')==-1 ? '?':'&';oRequest.requestURI+=oRequest.requestData;oRequest.requestData='';try{xjxEc.connect_htmlfile(oRequest.requestURI,xjxEc.responseProcessor.ActiveX,oRequest);if(0 < oRequest.requestRetry)
oRequest.requestRetry=0;}
catch(ex){}
return;}
return xjxEc.prepareRequest(oRequest);}
xjxEc.prepareRequestHTMLDRAFT=function(oRequest){if(true==oRequest.comet){var xx=xajax;var xt=xx.tools;oRequest.requestURI+=oRequest.requestURI.indexOf('?')==-1 ? '?':'&';oRequest.requestURI+=oRequest.requestData;oRequest.requestURI+="&xjxstreaming=HTML5DRAFT";oRequest.inProgress=false;try{var uri=oRequest.requestURI;var es=document.createElement("event-source");es.setAttribute("src",uri);es.setAttribute("width",200);es.setAttribute("height",200);es.style.display="block";callback=function(event){xjxEc.responseProcessor.HTMLDRAFT(event.data,oRequest);};remove=function(){es.removeEventListener("xjxstream",callback,false);es.removeEventListener("xjxendstream",remove,false);}
es.addEventListener("xjxstream",callback,false);es.addEventListener("xjxendstream",remove,false);document.body.appendChild(es);if(0 < oRequest.requestRetry)
oRequest.requestRetry=0;}
catch(ex){}
return;}
return xjxEc.prepareRequest(oRequest);}
xajax.debug={};xajax.debug.prepareDebugText=function(text){try{text=text.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/\n/g,'<br />');return text;}
catch(e){xajax.debug.stringReplace=function(haystack,needle,newNeedle){var segments=haystack.split(needle);haystack='';for(var i=0;i < segments.length;++i){if(0!=i)
haystack+=newNeedle;haystack+=segments[i];}
return haystack;}
xajax.debug.prepareDebugText=function(text){text=xajax.debug.stringReplace(text,'&','&amp;');text=xajax.debug.stringReplace(text,'<','&lt;');text=xajax.debug.stringReplace(text,'>','&gt;');text=xajax.debug.stringReplace(text,'\n','<br />');return text;}
xajax.debug.prepareDebugText(text);}
}
xjxEc.responseProcessor={}
xjxEc.responseProcessor.XHR=function(oRequest){var xx=xajax;var xt=xx.tools;var xcb=xx.callback;var gcb=xcb.global;var lcb=oRequest.callback;var oRet=oRequest.returnValue;if(""==oRequest.request.responseText)
return;var allMessages=oRequest.request.responseText;if(true===oRequest.comet.inProgress)return;oRequest.comet.inProgress=true;do{var unprocessed=allMessages.substring(oRequest.comet.LastPosition);var messageXMLEndIndex=unprocessed.indexOf("</xjx>");if(messageXMLEndIndex!=-1){var endOfFirstMessageIndex=messageXMLEndIndex+("</xjx>").length;var anUpdate=unprocessed.substring(0,endOfFirstMessageIndex);var cmd=(new DOMParser()).parseFromString(anUpdate,"text/xml");try{var seq=0;var child=cmd.documentElement.firstChild;xt.xml.processFragment(child,seq,oRet,oRequest);}
catch(ex){}
xt.queue.process(xx.response);oRequest.comet.LastPosition+=endOfFirstMessageIndex;}
}while(messageXMLEndIndex!=-1);oRequest.comet.inProgress=false;return oRet;}
xjxEc.responseProcessor.ActiveX=function(response,oRequest){response.replace('\"','"');var xx=xajax;var xt=xx.tools;var xcb=xx.callback;var gcb=xcb.global;var lcb=oRequest.callback;var oRet=oRequest.returnValue;if(response){var cmd=(new DOMParser()).parseFromString(response,"text/xml");var seq=0;var child=cmd.documentElement.firstChild;xt.xml.processFragment(child,seq,oRequest);if(null==xx.response.timeout)
xt.queue.process(xx.response);}
return oRet;}
xjxEc.responseProcessor.HTMLDRAFT=function(response,oRequest){var xx=xajax;var xt=xx.tools;var xcb=xx.callback;var gcb=xcb.global;var lcb=oRequest.callback;var oRet=oRequest.returnValue;if(oRequest.inProgress)return;if(response&&oRequest.lastResponse!==response){oRequest.inProgress=true;var cmd=(new DOMParser()).parseFromString(response,"text/xml");var seq=0;var child=cmd.documentElement.firstChild;xt.xml.processFragment(child,seq,oRequest);if(null==xx.response.timeout)
xt.queue.process(xx.response);oRequest.inProgress=false;oRequest.lastResponse=response
}
return oRet;}
xjxEc.submitRequestActiveX=function(oRequest){if(true==oRequest.comet)
return;xjxEc.submitRequest(oRequest);}
xjxEc.prepareRequest=xajax.prepareRequest;xjxEc.stream_support=xjxEc.detectSupport();switch(xjxEc.stream_support){case "Internet Explorer":
xajax.prepareRequest=xjxEc.prepareRequestActiveX;xjxEc.submitRequest=xajax.submitRequest;xajax.submitRequest=xjxEc.submitRequestActiveX;break;case "Firefox":
case "Safari":
xajax.prepareRequest=xjxEc.prepareRequestXHR;break;case "Opera":
xajax.prepareRequest=xjxEc.prepareRequestHTMLDRAFT;xjxEc.submitRequest=xajax.submitRequest;xajax.submitRequest=xjxEc.submitRequestActiveX;break;default:
alert("Xajax.Ext.Comet: Your browser does not support comet streaming or is not yet supported by this plugin!");}
if(typeof DOMParser=="undefined"){DOMParser=function(){}
DOMParser.prototype.parseFromString=function(str,contentType){if(typeof ActiveXObject!="undefined"){var d=new ActiveXObject("Microsoft.XMLDOM");d.loadXML(str);return d;}
else if(typeof XMLHttpRequest!="undefined"){var req=new XMLHttpRequest;req.open("GET","data:"+(contentType||"application/xml")+";charset=utf-8,"+encodeURIComponent(str),false);if(req.overrideMimeType){req.overrideMimeType(contentType);}
req.send(null);return req.responseXML;}
}
}

624
resources/xajax/xajax_plugins/response/comet/comet_uncompressed.js Normal file
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/*
File: comet.js
Title: Comet plugin for xajax
*/
/*
@package comet plugin
@version $Id:
@copyright Copyright (c) 2007 by Steffen Konerow (IE)
@license http://www.xajaxproject.org/bsd_license.txt BSD License
*/
/*
Class: xajax.ext.comet
This class contains all functions for using comet streaming with xajax.
*/
try
{
if (undefined == xajax.ext)
xajax.ext = {
};
}
catch (e)
{
}
try
{
if (undefined == xajax.ext.comet)
xajax.ext.comet = {
};
}
catch (e)
{
alert("Could not create xajax.ext.comet namespace");
}
// create Shorthand for xajax.ext.comet
xjxEc = xajax.ext.comet;
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: detectSupport
Detects browser for using fallback methods instead of multipart XHR responses.
*/
xjxEc.detectSupport = function()
{
var agt = navigator.userAgent.toLowerCase();
if (agt.indexOf("opera") != -1)
return 'Opera';
if (agt.indexOf("staroffice") != -1)
return 'Star Office';
if (agt.indexOf("webtv") != -1)
return 'WebTV';
if (agt.indexOf("beonex") != -1)
return 'Beonex';
if (agt.indexOf("chimera") != -1)
return 'Chimera';
if (agt.indexOf("netpositive") != -1)
return 'NetPositive';
if (agt.indexOf("phoenix") != -1)
return 'Phoenix';
if (agt.indexOf("firefox") != -1)
return 'Firefox';
if (agt.indexOf("safari") != -1)
return 'Safari';
if (agt.indexOf("skipstone") != -1)
return 'SkipStone';
if (agt.indexOf("msie") != -1)
return 'Internet Explorer';
if (agt.indexOf("netscape") != -1)
return 'Netscape';
if (agt.indexOf("mozilla/5.0") != -1)
return 'Mozilla';
if (agt.indexOf('\/') != -1)
{
if (agt.substr(0, agt.indexOf('\/')) != 'mozilla')
{
return navigator.userAgent.substr(0, agt.indexOf('\/'));
}
else
return 'Netscape';
}
else if (agt.indexOf(' ') != -1)
return navigator.userAgent.substr(0, agt.indexOf(' '));
else
return navigator.userAgent;
// if (navigator.appVersion.indexOf("MSIE")!=-1)
// {
// var version,temp;
// temp=navigator.appVersion.split("MSIE")
// version=parseFloat(temp[1])
// if (version>=5.5) return "MSIE";
// }
// if ( "undefined" != typeof window.opera )
// {
// return "OPERA";
// }
// if ( "undefined" != typeof window.Iterator )
// {
// return "FF2";
// }
return false;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: prepareRequestXHR
Prepares the XMLHttpRequest object for this xajax request in FF/Safari browsers.
*/
xjxEc.prepareRequestXHR = function (oRequest)
{
if (true == oRequest.comet)
{
var xx = xajax;
var xt = xx.tools;
oRequest.request = xt.getRequestObject();
oRequest.setRequestHeaders = function(headers)
{
if ('object' == typeof headers)
{
for (var optionName in headers)
this.request.setRequestHeader(optionName, headers[optionName]);
}
}
oRequest.setCommonRequestHeaders = function()
{
this.setRequestHeaders(this.commonHeaders);
}
oRequest.setPostRequestHeaders = function()
{
this.setRequestHeaders(this.postHeaders);
}
oRequest.setGetRequestHeaders = function()
{
this.setRequestHeaders(this.getHeaders);
}
oRequest.applyRequestHeaders = function()
{
}
oRequest.setCommonRequestHeaders = function()
{
this.request.setRequestHeader('If-Modified-Since', 'Sat, 1 Jan 2000 00:00:00 GMT');
this.request.setRequestHeader('streaming', 'xhr');
if (typeof (oRequest.header) == "object")
{
for (a in oRequest.header)
this.request.setRequestHeader(a, oRequest.header[a]);
}
}
oRequest.comet = {
};
oRequest.comet.LastPosition = 0;
oRequest.comet.inProgress = false;
var pollLatestResponse = function()
{
console.log('pollLatestResponse');
xjxEc.responseProcessor.XHR(oRequest);
}
oRequest.pollTimer = setInterval(pollLatestResponse, 300);
oRequest.request.onreadystatechange = function()
{
if (oRequest.request.readyState < 3)
{
console.log('readyState < 3');
return;
}
if (oRequest.request.readyState == 4)
{
console.log('readyState == 4');
clearInterval(oRequest.pollTimer);
xjxEc.responseProcessor.XHR(oRequest);
//xajax.responseReceived(oRequest);
xajax.completeResponse(oRequest);
return;
}
}
oRequest.finishRequest = function()
{
return this.returnValue;
}
if ('undefined' != typeof oRequest.userName && 'undefined' != typeof oRequest.password)
{
oRequest.open = function()
{
this.request.open(this.method, this.requestURI, true, oRequest.userName, oRequest.password);
}
}
else
{
oRequest.open = function()
{
this.request.open(this.method, this.requestURI, true);
}
}
if ('POST' == oRequest.method)
{ // W3C: Method is case sensitive
oRequest.applyRequestHeaders = function()
{
this.setCommonRequestHeaders();
try
{
this.setPostRequestHeaders();
}
catch (e)
{
this.method = 'GET';
this.requestURI += this.requestURI.indexOf('?') == -1 ? '?' : '&';
this.requestURI += this.requestData;
this.requestData = '';
if (0 == this.requestRetry)
this.requestRetry = 1;
throw e;
}
}
}
else
{
oRequest.applyRequestHeaders = function()
{
this.setCommonRequestHeaders();
this.setGetRequestHeaders();
}
}
return;
}
return xjxEc.prepareRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: connect_htmlfile
Create a hidden iframe for IE
*/
xjxEc.connect_htmlfile = function (url, callback, oRequest)
{
try
{
xjxEc.transferDoc = new ActiveXObject("htmlfile");
xjxEc.transferDoc.open();
xjxEc.transferDoc.write("<html>");
xjxEc.transferDoc.write("<script>document.domain='http://192.168.1.21/';</script>");
xjxEc.transferDoc.write("</html>");
xjxEc.transferDoc.close();
xjxEc.ifrDiv = xjxEc.transferDoc.createElement("div");
xjxEc.transferDoc.body.appendChild(xjxEc.ifrDiv);
xjxEc.ifrDiv.innerHTML = "<iframe src='" + url + "'></iframe>";
xjxEc.transferDoc.callback = function (response)
{
callback(response, oRequest);
};
}
catch (ex)
{
}
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: prepareRequestActiveX
Prepares the Iframe for streaming with active X
*/
xjxEc.prepareRequestActiveX = function(oRequest)
{
if (true == oRequest.comet)
{
var xx = xajax;
var xt = xx.tools;
oRequest.requestURI += oRequest.requestURI.indexOf('?') == -1 ? '?' : '&';
oRequest.requestURI += oRequest.requestData;
oRequest.requestData = '';
try
{
xjxEc.connect_htmlfile(oRequest.requestURI, xjxEc.responseProcessor.ActiveX, oRequest);
if (0 < oRequest.requestRetry)
oRequest.requestRetry = 0;
}
catch (ex)
{
}
return;
}
return xjxEc.prepareRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: prepareRequestHTMLDRAFT
Prepares streaming with HTML 5 Draft
*/
xjxEc.prepareRequestHTMLDRAFT = function(oRequest)
{
if (true == oRequest.comet)
{
var xx = xajax;
var xt = xx.tools;
oRequest.requestURI += oRequest.requestURI.indexOf('?') == -1 ? '?' : '&';
oRequest.requestURI += oRequest.requestData;
oRequest.requestURI += "&xjxstreaming=HTML5DRAFT";
oRequest.inProgress = false;
try
{
var uri = oRequest.requestURI;
var es = document.createElement("event-source");
es.setAttribute("src", uri);
es.setAttribute("width", 200);
es.setAttribute("height", 200);
es.style.display = "block";
callback = function(event)
{
xjxEc.responseProcessor.HTMLDRAFT(event.data, oRequest);
};
remove = function()
{
es.removeEventListener("xjxstream", callback, false);
es.removeEventListener("xjxendstream", remove, false);
//document.body.removeChild(es);
}
es.addEventListener("xjxstream", callback, false);
es.addEventListener("xjxendstream", remove, false);
document.body.appendChild(es);
if (0 < oRequest.requestRetry)
oRequest.requestRetry = 0;
}
catch (ex)
{
}
return;
}
return xjxEc.prepareRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: responseProcessor.XHR
Processes the streaming response for FF/Safari
*/
xajax.debug = {
};
xajax.debug.prepareDebugText = function(text)
{
try
{
text = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/\n/g, '<br />');
return text;
}
catch (e)
{
xajax.debug.stringReplace = function(haystack, needle, newNeedle)
{
var segments = haystack.split(needle);
haystack = '';
for (var i = 0; i < segments.length; ++i)
{
if (0 != i)
haystack += newNeedle;
haystack += segments[i];
}
return haystack;
}
xajax.debug.prepareDebugText = function(text)
{
text = xajax.debug.stringReplace(text, '&', '&amp;');
text = xajax.debug.stringReplace(text, '<', '&lt;');
text = xajax.debug.stringReplace(text, '>', '&gt;');
text = xajax.debug.stringReplace(text, '\n', '<br />');
return text;
}
xajax.debug.prepareDebugText(text);
}
}
xjxEc.responseProcessor = {
}
xjxEc.responseProcessor.XHR = function(oRequest)
{
var xx = xajax;
var xt = xx.tools;
var xcb = xx.callback;
var gcb = xcb.global;
var lcb = oRequest.callback;
var oRet = oRequest.returnValue;
if ("" == oRequest.request.responseText)
return;
var allMessages = oRequest.request.responseText;
if (true === oRequest.comet.inProgress) return;
oRequest.comet.inProgress = true;
do
{
var unprocessed = allMessages.substring(oRequest.comet.LastPosition);
var messageXMLEndIndex = unprocessed.indexOf("</xjx>");
if (messageXMLEndIndex != -1)
{
var endOfFirstMessageIndex = messageXMLEndIndex + ("</xjx>").length;
var anUpdate = unprocessed.substring(0, endOfFirstMessageIndex);
var cmd = (new DOMParser()).parseFromString(anUpdate, "text/xml");
try
{
var seq = 0;
var child = cmd.documentElement.firstChild;
xt.xml.processFragment(child, seq, oRet, oRequest);
}
catch (ex)
{
}
xt.queue.process(xx.response);
oRequest.comet.LastPosition += endOfFirstMessageIndex;
}
} while (messageXMLEndIndex != -1);
oRequest.comet.inProgress = false;
return oRet;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: responseProcessor.ActiveX
Processes the streaming response for IE
*/
xjxEc.responseProcessor.ActiveX = function(response, oRequest)
{
response.replace('\"', '"');
var xx = xajax;
var xt = xx.tools;
var xcb = xx.callback;
var gcb = xcb.global;
var lcb = oRequest.callback;
var oRet = oRequest.returnValue;
if (response)
{
var cmd = (new DOMParser()).parseFromString(response, "text/xml");
var seq = 0;
var child = cmd.documentElement.firstChild;
xt.xml.processFragment(child, seq, oRequest);
if (null == xx.response.timeout)
xt.queue.process(xx.response);
}
return oRet;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: responseProcessor.HTMLDRAFT
Processes the streaming response for HTML 5 Draft Browsers (Opera 9+)
*/
xjxEc.responseProcessor.HTMLDRAFT = function(response, oRequest)
{
var xx = xajax;
var xt = xx.tools;
var xcb = xx.callback;
var gcb = xcb.global;
var lcb = oRequest.callback;
var oRet = oRequest.returnValue;
if (oRequest.inProgress) return;
if (response && oRequest.lastResponse !== response)
{
oRequest.inProgress = true;
var cmd = (new DOMParser()).parseFromString(response, "text/xml");
var seq = 0;
var child = cmd.documentElement.firstChild;
xt.xml.processFragment(child, seq, oRequest);
if (null == xx.response.timeout)
xt.queue.process(xx.response);
oRequest.inProgress=false;
oRequest.lastResponse = response
}
return oRet;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: submitRequestActiveX
Supresses the xajax.submitRequest() function call for IE in streaming calls.
*/
xjxEc.submitRequestActiveX = function(oRequest)
{
if (true == oRequest.comet)
return;
xjxEc.submitRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
variable setup. Detects IE and replaces the according functions
*/
xjxEc.prepareRequest = xajax.prepareRequest;
xjxEc.stream_support = xjxEc.detectSupport();
switch (xjxEc.stream_support)
{
case "Internet Explorer":
xajax.prepareRequest = xjxEc.prepareRequestActiveX;
xjxEc.submitRequest = xajax.submitRequest;
xajax.submitRequest = xjxEc.submitRequestActiveX;
break;
case "Firefox":
case "Safari":
xajax.prepareRequest = xjxEc.prepareRequestXHR;
break;
case "Opera":
xajax.prepareRequest = xjxEc.prepareRequestHTMLDRAFT;
xjxEc.submitRequest = xajax.submitRequest;
xajax.submitRequest = xjxEc.submitRequestActiveX;
break;
default:
alert("Xajax.Ext.Comet: Your browser does not support comet streaming or is not yet supported by this plugin!");
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: DOMParser
Prototype DomParser for IE/Opera
*/
if (typeof DOMParser == "undefined")
{
DOMParser = function ()
{
}
DOMParser.prototype.parseFromString = function (str, contentType)
{
if (typeof ActiveXObject != "undefined")
{
var d = new ActiveXObject("Microsoft.XMLDOM");
d.loadXML(str);
return d;
}
else if (typeof XMLHttpRequest != "undefined")
{
var req = new XMLHttpRequest;
req.open("GET", "data:" + (contentType || "application/xml") + ";charset=utf-8," + encodeURIComponent(str), false);
if (req.overrideMimeType)
{
req.overrideMimeType(contentType);
}
req.send(null);
return req.responseXML;
}
}
}
// -------------------------------------------------------------------------------------------------------------------------------------

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/*
File: comet.js
Title: Comet plugin for xajax
*/
/*
@package comet plugin
@version $Id:
@copyright Copyright (c) 2007 by Steffen Konerow (IE)
@license http://www.xajaxproject.org/bsd_license.txt BSD License
*/
/*
Class: xajax.ext.comet
This class contains all functions for using comet streaming with xajax.
*/
try
{
if (undefined == xajax.ext)
xajax.ext = {
};
}
catch (e)
{
}
try
{
if (undefined == xajax.ext.comet)
xajax.ext.comet = {
};
}
catch (e)
{
alert("Could not create xajax.ext.comet namespace");
}
// create Shorthand for xajax.ext.comet
xjxEc = xajax.ext.comet;
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: detectSupport
Detects browser for using fallback methods instead of multipart XHR responses.
*/
xjxEc.detectSupport = function()
{
var agt = navigator.userAgent.toLowerCase();
if (agt.indexOf("opera") != -1)
return 'Opera';
if (agt.indexOf("staroffice") != -1)
return 'Star Office';
if (agt.indexOf("webtv") != -1)
return 'WebTV';
if (agt.indexOf("beonex") != -1)
return 'Beonex';
if (agt.indexOf("chimera") != -1)
return 'Chimera';
if (agt.indexOf("netpositive") != -1)
return 'NetPositive';
if (agt.indexOf("phoenix") != -1)
return 'Phoenix';
if (agt.indexOf("firefox") != -1)
return 'Firefox';
if (agt.indexOf("safari") != -1)
return 'Safari';
if (agt.indexOf("skipstone") != -1)
return 'SkipStone';
if (agt.indexOf("msie") != -1)
return 'Internet Explorer';
if (agt.indexOf("netscape") != -1)
return 'Netscape';
if (agt.indexOf("mozilla/5.0") != -1)
return 'Mozilla';
if (agt.indexOf('\/') != -1)
{
if (agt.substr(0, agt.indexOf('\/')) != 'mozilla')
{
return navigator.userAgent.substr(0, agt.indexOf('\/'));
}
else
return 'Netscape';
}
else if (agt.indexOf(' ') != -1)
return navigator.userAgent.substr(0, agt.indexOf(' '));
else
return navigator.userAgent;
// if (navigator.appVersion.indexOf("MSIE")!=-1)
// {
// var version,temp;
// temp=navigator.appVersion.split("MSIE")
// version=parseFloat(temp[1])
// if (version>=5.5) return "MSIE";
// }
// if ( "undefined" != typeof window.opera )
// {
// return "OPERA";
// }
// if ( "undefined" != typeof window.Iterator )
// {
// return "FF2";
// }
return false;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: prepareRequestXHR
Prepares the XMLHttpRequest object for this xajax request in FF/Safari browsers.
*/
xjxEc.prepareRequestXHR = function (oRequest)
{
if (true == oRequest.comet)
{
var xx = xajax;
var xt = xx.tools;
oRequest.request = xt.getRequestObject();
oRequest.setRequestHeaders = function(headers)
{
if ('object' == typeof headers)
{
for (var optionName in headers)
this.request.setRequestHeader(optionName, headers[optionName]);
}
}
oRequest.setCommonRequestHeaders = function()
{
this.setRequestHeaders(this.commonHeaders);
}
oRequest.setPostRequestHeaders = function()
{
this.setRequestHeaders(this.postHeaders);
}
oRequest.setGetRequestHeaders = function()
{
this.setRequestHeaders(this.getHeaders);
}
oRequest.applyRequestHeaders = function()
{
}
oRequest.setCommonRequestHeaders = function()
{
this.request.setRequestHeader('If-Modified-Since', 'Sat, 1 Jan 2000 00:00:00 GMT');
this.request.setRequestHeader('streaming', 'xhr');
if (typeof (oRequest.header) == "object")
{
for (a in oRequest.header)
this.request.setRequestHeader(a, oRequest.header[a]);
}
}
oRequest.comet = {
};
oRequest.comet.LastPosition = 0;
oRequest.comet.inProgress = false;
var pollLatestResponse = function()
{
xjxEc.responseProcessor.XHR(oRequest);
}
oRequest.pollTimer = setInterval(pollLatestResponse, 300);
oRequest.request.onreadystatechange = function()
{
if (oRequest.request.readyState < 3)
{
console.log('readyState < 3');
return;
}
if (oRequest.request.readyState == 4)
{
console.log('readyState == 4');
clearInterval(oRequest.pollTimer);
xjxEc.responseProcessor.XHR(oRequest);
//xajax.responseReceived(oRequest);
xajax.completeResponse(oRequest);
return;
}
}
oRequest.finishRequest = function()
{
return this.returnValue;
}
if ('undefined' != typeof oRequest.userName && 'undefined' != typeof oRequest.password)
{
oRequest.open = function()
{
this.request.open(this.method, this.requestURI, true, oRequest.userName, oRequest.password);
}
}
else
{
oRequest.open = function()
{
this.request.open(this.method, this.requestURI, true);
}
}
if ('POST' == oRequest.method)
{ // W3C: Method is case sensitive
oRequest.applyRequestHeaders = function()
{
this.setCommonRequestHeaders();
try
{
this.setPostRequestHeaders();
}
catch (e)
{
this.method = 'GET';
this.requestURI += this.requestURI.indexOf('?') == -1 ? '?' : '&';
this.requestURI += this.requestData;
this.requestData = '';
if (0 == this.requestRetry)
this.requestRetry = 1;
throw e;
}
}
}
else
{
oRequest.applyRequestHeaders = function()
{
this.setCommonRequestHeaders();
this.setGetRequestHeaders();
}
}
return;
}
return xjxEc.prepareRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: connect_htmlfile
Create a hidden iframe for IE
*/
xjxEc.connect_htmlfile = function (url, callback, oRequest)
{
try
{
xjxEc.transferDoc = new ActiveXObject("htmlfile");
xjxEc.transferDoc.open();
xjxEc.transferDoc.write("<html>");
xjxEc.transferDoc.write("<script>document.domain='http://192.168.1.21/';</script>");
xjxEc.transferDoc.write("</html>");
xjxEc.transferDoc.close();
xjxEc.ifrDiv = xjxEc.transferDoc.createElement("div");
xjxEc.transferDoc.body.appendChild(xjxEc.ifrDiv);
xjxEc.ifrDiv.innerHTML = "<iframe src='" + url + "'></iframe>";
xjxEc.transferDoc.callback = function (response)
{
callback(response, oRequest);
};
}
catch (ex)
{
}
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: prepareRequestActiveX
Prepares the Iframe for streaming with active X
*/
xjxEc.prepareRequestActiveX = function(oRequest)
{
if (true == oRequest.comet)
{
var xx = xajax;
var xt = xx.tools;
oRequest.requestURI += oRequest.requestURI.indexOf('?') == -1 ? '?' : '&';
oRequest.requestURI += oRequest.requestData;
oRequest.requestData = '';
try
{
xjxEc.connect_htmlfile(oRequest.requestURI, xjxEc.responseProcessor.ActiveX, oRequest);
if (0 < oRequest.requestRetry)
oRequest.requestRetry = 0;
}
catch (ex)
{
}
return;
}
return xjxEc.prepareRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: prepareRequestHTMLDRAFT
Prepares streaming with HTML 5 Draft
*/
xjxEc.prepareRequestHTMLDRAFT = function(oRequest)
{
if (true == oRequest.comet)
{
var xx = xajax;
var xt = xx.tools;
oRequest.requestURI += oRequest.requestURI.indexOf('?') == -1 ? '?' : '&';
oRequest.requestURI += oRequest.requestData;
oRequest.requestURI += "&xjxstreaming=HTML5DRAFT";
oRequest.inProgress = false;
try
{
var uri = oRequest.requestURI;
var es = document.createElement("event-source");
es.setAttribute("src", uri);
es.setAttribute("width", 200);
es.setAttribute("height", 200);
es.style.display = "block";
callback = function(event)
{
xjxEc.responseProcessor.HTMLDRAFT(event.data, oRequest);
};
remove = function()
{
es.removeEventListener("xjxstream", callback, false);
es.removeEventListener("xjxendstream", remove, false);
//document.body.removeChild(es);
}
es.addEventListener("xjxstream", callback, false);
es.addEventListener("xjxendstream", remove, false);
document.body.appendChild(es);
if (0 < oRequest.requestRetry)
oRequest.requestRetry = 0;
}
catch (ex)
{
}
return;
}
return xjxEc.prepareRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: responseProcessor.XHR
Processes the streaming response for FF/Safari
*/
xajax.debug = {
};
xajax.debug.prepareDebugText = function(text)
{
try
{
text = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/\n/g, '<br />');
return text;
}
catch (e)
{
xajax.debug.stringReplace = function(haystack, needle, newNeedle)
{
var segments = haystack.split(needle);
haystack = '';
for (var i = 0; i < segments.length; ++i)
{
if (0 != i)
haystack += newNeedle;
haystack += segments[i];
}
return haystack;
}
xajax.debug.prepareDebugText = function(text)
{
text = xajax.debug.stringReplace(text, '&', '&amp;');
text = xajax.debug.stringReplace(text, '<', '&lt;');
text = xajax.debug.stringReplace(text, '>', '&gt;');
text = xajax.debug.stringReplace(text, '\n', '<br />');
return text;
}
xajax.debug.prepareDebugText(text);
}
}
xjxEc.responseProcessor = {
}
xjxEc.responseProcessor.XHR = function(oRequest)
{
var xx = xajax;
var xt = xx.tools;
var xcb = xx.callback;
var gcb = xcb.global;
var lcb = oRequest.callback;
var oRet = oRequest.returnValue;
if ("" == oRequest.request.responseText)
return;
var allMessages = oRequest.request.responseText;
if (true === oRequest.comet.inProgress) return;
oRequest.comet.inProgress = true;
do
{
var unprocessed = allMessages.substring(oRequest.comet.LastPosition);
var messageXMLEndIndex = unprocessed.indexOf("</xjx>");
if (messageXMLEndIndex != -1)
{
var endOfFirstMessageIndex = messageXMLEndIndex + ("</xjx>").length;
var anUpdate = unprocessed.substring(0, endOfFirstMessageIndex);
var cmd = (new DOMParser()).parseFromString(anUpdate, "text/xml");
try
{
var seq = 0;
var child = cmd.documentElement.firstChild;
xt.xml.processFragment(child, seq, oRet, oRequest);
}
catch (ex)
{
}
xt.queue.process(xx.response);
oRequest.comet.LastPosition += endOfFirstMessageIndex;
}
} while (messageXMLEndIndex != -1);
oRequest.comet.inProgress = false;
return oRet;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: responseProcessor.ActiveX
Processes the streaming response for IE
*/
xjxEc.responseProcessor.ActiveX = function(response, oRequest)
{
response.replace('\"', '"');
var xx = xajax;
var xt = xx.tools;
var xcb = xx.callback;
var gcb = xcb.global;
var lcb = oRequest.callback;
var oRet = oRequest.returnValue;
if (response)
{
var cmd = (new DOMParser()).parseFromString(response, "text/xml");
var seq = 0;
var child = cmd.documentElement.firstChild;
xt.xml.processFragment(child, seq, oRequest);
if (null == xx.response.timeout)
xt.queue.process(xx.response);
}
return oRet;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: responseProcessor.HTMLDRAFT
Processes the streaming response for HTML 5 Draft Browsers (Opera 9+)
*/
xjxEc.responseProcessor.HTMLDRAFT = function(response, oRequest)
{
var xx = xajax;
var xt = xx.tools;
var xcb = xx.callback;
var gcb = xcb.global;
var lcb = oRequest.callback;
var oRet = oRequest.returnValue;
if (oRequest.inProgress) return;
if (response && oRequest.lastResponse !== response)
{
oRequest.inProgress = true;
var cmd = (new DOMParser()).parseFromString(response, "text/xml");
var seq = 0;
var child = cmd.documentElement.firstChild;
xt.xml.processFragment(child, seq, oRequest);
if (null == xx.response.timeout)
xt.queue.process(xx.response);
oRequest.inProgress=false;
oRequest.lastResponse = response
}
return oRet;
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: submitRequestActiveX
Supresses the xajax.submitRequest() function call for IE in streaming calls.
*/
xjxEc.submitRequestActiveX = function(oRequest)
{
if (true == oRequest.comet)
return;
xjxEc.submitRequest(oRequest);
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
variable setup. Detects IE and replaces the according functions
*/
xjxEc.prepareRequest = xajax.prepareRequest;
xjxEc.stream_support = xjxEc.detectSupport();
switch (xjxEc.stream_support)
{
case "Internet Explorer":
xajax.prepareRequest = xjxEc.prepareRequestActiveX;
xjxEc.submitRequest = xajax.submitRequest;
xajax.submitRequest = xjxEc.submitRequestActiveX;
break;
case "Firefox":
case "Safari":
xajax.prepareRequest = xjxEc.prepareRequestXHR;
break;
case "Opera":
xajax.prepareRequest = xjxEc.prepareRequestHTMLDRAFT;
xjxEc.submitRequest = xajax.submitRequest;
xajax.submitRequest = xjxEc.submitRequestActiveX;
break;
default:
alert("Xajax.Ext.Comet: Your browser does not support comet streaming or is not yet supported by this plugin!");
}
// -------------------------------------------------------------------------------------------------------------------------------------
/*
Function: DOMParser
Prototype DomParser for IE/Opera
*/
if (typeof DOMParser == "undefined")
{
DOMParser = function ()
{
}
DOMParser.prototype.parseFromString = function (str, contentType)
{
if (typeof ActiveXObject != "undefined")
{
var d = new ActiveXObject("Microsoft.XMLDOM");
d.loadXML(str);
return d;
}
else if (typeof XMLHttpRequest != "undefined")
{
var req = new XMLHttpRequest;
req.open("GET", "data:" + (contentType || "application/xml") + ";charset=utf-8," + encodeURIComponent(str), false);
if (req.overrideMimeType)
{
req.overrideMimeType(contentType);
}
req.send(null);
return req.responseXML;
}
}
}
// -------------------------------------------------------------------------------------------------------------------------------------

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<?php
/*
File: xajaxCometFunction.inc.php
Contains the xajaxCometFunction class
Title: xajaxCometFunction class
Please see <copyright.inc.php> for a detailed description, copyright
and license information.
*/
/*
@package xajax
@version $Id: xajaxCometFunction.inc.php 362 2007-05-29 15:32:24Z calltoconstruct $
@copyright Copyright (c) 2005-2006 by Jared White & J. Max Wilson
@license http://www.xajaxproject.org/bsd_license.txt BSD License
*/
/*
Class: xajaxCometFunction
Construct instances of this class to define functions that will be registered
with the <xajax> request processor. This class defines the parameters that
are needed for the definition of a xajax enabled function. While you can
still specify functions by name during registration, it is advised that you
convert to using this class when you wish to register external functions or
to specify call options as well.
*/
class xajaxCometFunction
{
/*
String: sAlias
An alias to use for this function. This is useful when you want
to call the same xajax enabled function with a different set of
call options from what was already registered.
*/
var $sAlias;
/*
Object: uf
A string or array which defines the function to be registered.
*/
var $uf;
/*
String: sInclude
The path and file name of the include file that contains the function.
*/
var $sInclude;
/*
Array: aConfiguration
An associative array containing call options that will be sent to the
browser curing client script generation.
*/
var $aConfiguration;
/*
Function: xajaxCometFunction
Constructs and initializes the <xajaxCometFunction> object.
$uf - (mixed): A function specification in one of the following formats:
- a three element array:
(string) Alternate function name: when a method of a class has the same
name as another function in the system, you can provide an alias to
help avoid collisions.
(object or class name) Class: the name of the class or an instance of
the object which contains the function to be called.
(string) Method: the name of the method that will be called.
- a two element array:
(object or class name) Class: the name of the class or an instance of
the object which contains the function to be called.
(string) Method: the name of the method that will be called.
- a string:
the name of the function that is available at global scope (not in a
class.
$sInclude - (string, optional): The path and file name of the include file
that contains the class or function to be called.
$aConfiguration - (array, optional): An associative array of call options
that will be used when sending the request from the client.
Examples:
$myFunction = array('alias', 'myClass', 'myMethod');
$myFunction = array('alias', &$myObject, 'myMethod');
$myFunction = array('myClass', 'myMethod');
$myFunction = array(&$myObject, 'myMethod');
$myFunction = 'myFunction';
$myUserFunction = new xajaxCometFunction($myFunction, 'myFile.inc.php', array(
'method' => 'get',
'mode' => 'synchronous'
));
$xajax->register(XAJAX_FUNCTION, $myUserFunction);
*/
function xajaxCometFunction($uf, $sInclude=NULL, $aConfiguration=array())
{
$this->sAlias = '';
$this->uf =& $uf;
$this->sInclude = $sInclude;
$this->aConfiguration = array();
foreach ($aConfiguration as $sKey => $sValue)
$this->configure($sKey, $sValue);
if (is_array($this->uf) && 2 < count($this->uf))
{
$this->sAlias = $this->uf[0];
$this->uf = array_slice($this->uf, 1);
}
//SkipDebug
if (is_array($this->uf) && 2 != count($this->uf))
trigger_error(
'Invalid function declaration for xajaxCometFunction.',
E_USER_ERROR
);
//EndSkipDebug
}
/*
Function: getName
Get the name of the function being referenced.
Returns:
string - the name of the function contained within this object.
*/
function getName()
{
// Do not use sAlias here!
if (is_array($this->uf))
return $this->uf[1];
return $this->uf;
}
/*
Function: configure
Call this to set call options for this instance.
*/
function configure($sName, $sValue)
{
if ('alias' == $sName)
$this->sAlias = $sValue;
else
$this->aConfiguration[$sName] = $sValue;
}
/*
Function: generateRequest
Constructs and returns a <xajaxRequest> object which is capable
of generating the javascript call to invoke this xajax enabled
function.
*/
function generateRequest($sXajaxPrefix)
{
$sAlias = $this->getName();
if (0 < strlen($this->sAlias))
$sAlias = $this->sAlias;
return new xajaxRequest("{$sXajaxPrefix}{$sAlias}");
}
/*
Function: generateClientScript
Called by the <xajaxPlugin> that is referencing this function
reference during the client script generation phase. This function
will generate the javascript function stub that is sent to the
browser on initial page load.
*/
function generateClientScript($sXajaxPrefix)
{
$sFunction = $this->getName();
$sAlias = $sFunction;
if (0 < strlen($this->sAlias))
$sAlias = $this->sAlias;
echo "{$sXajaxPrefix}{$sAlias} = function() { ";
echo "return xajax.request( ";
echo "{ xjxcomet: '{$sFunction}' }, ";
echo "{ parameters: arguments, mode:'comet'";
$sSeparator = ", ";
foreach ($this->aConfiguration as $sKey => $sValue)
echo "{$sSeparator}{$sKey}: {$sValue}";
echo " } ); ";
echo "};\n";
}
/*
Function: call
Called by the <xajaxPlugin> that references this function during the
request processing phase. This function will call the specified
function, including an external file if needed and passing along
the specified arguments.
*/
function call($aArgs=array())
{
$objResponseManager =& xajaxResponseManager::getInstance();
if (NULL != $this->sInclude)
{
ob_start();
require_once $this->sInclude;
$sOutput = ob_get_clean();
//SkipDebug
if (0 < strlen($sOutput))
{
$sOutput = 'From include file: ' . $this->sInclude . ' => ' . $sOutput;
$objResponseManager->debug($sOutput);
}
//EndSkipDebug
}
$mFunction = $this->uf;
$objResponseManager->append(call_user_func_array($mFunction, $aArgs));
}
}
?>