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  Classes of Michele Castellucci  >  DBNavigator  >  zxml.js  >  Download  
File: zxml.js
Role: Auxiliary data
Content type: text/plain
Description: Create ajax connection
Class: DBNavigator
Browse and edit data stored in a MySQL database
Author: By
Last change:
Date: 2007-06-20 12:36
Size: 6,812 bytes
 

Contents

Class file image Download
var zXml={
		  useActiveX:(typeof ActiveXObject!="undefined")
		 ,useDom:document.implementation&&document.implementation.createDocument
		 ,useXmlHttp:(typeof XMLHttpRequest!="undefined")
		 };
		 
zXml.ARR_XMLHTTP_VERS=["MSXML2.XmlHttp.5.0","MSXML2.XmlHttp.4.0","MSXML2.XmlHttp.3.0","MSXML2.XmlHttp","Microsoft.XmlHttp"];
zXml.ARR_DOM_VERS=["MSXML2.DOMDocument.5.0","MSXML2.DOMDocument.4.0","MSXML2.DOMDocument.3.0","MSXML2.DOMDocument","Microsoft.XmlDom"];;

function zXmlHttp(){}

zXmlHttp.createRequest=function()
{
	if(zXml.useXmlHttp)
	{
		return new XMLHttpRequest();
	}else 
	if(zXml.useActiveX)
	{
		if(!zXml.XMLHTTP_VER)
		{
			for(var i=0;i<zXml.ARR_XMLHTTP_VERS.length;i++)
			{
				try{
						new ActiveXObject(zXml.ARR_XMLHTTP_VERS[i]);
						zXml.XMLHTTP_VER=zXml.ARR_XMLHTTP_VERS[i];
						break;
					}
					catch(oError)
					{
						;
					}
			}
		}
		if(zXml.XMLHTTP_VER)
		{
			return new ActiveXObject(zXml.XMLHTTP_VER);
		}else
		{
			throw new Error("Could not create XML HTTP Request.");
		}
	}
	else
	{
		throw new Error("Your browser doesn't support an XML HTTP Request.");
	}
}

zXmlHttp.isSupported=function()
{
	return zXml.useXmlHttp||zXml.useActiveX;
}

function zXmlDom(){}zXmlDom.createDocument=function(){if(zXml.useDom){var oXmlDom=document.implementation.createDocument("","",null);oXmlDom.parseError={valueOf:function(){return this.errorCode;},toString:function(){return this.errorCode.toString()}};oXmlDom.__initError__();oXmlDom.addEventListener("load",function(){this.__checkForErrors__();this.__changeReadyState__(4);},false);return oXmlDom;;}else if(zXml.useActiveX){if(!zXml.DOM_VER){for(var i=0;i<zXml.ARR_DOM_VERS.length;i++){try{new ActiveXObject(zXml.ARR_DOM_VERS[i]);zXml.DOM_VER=zXml.ARR_DOM_VERS[i];break;}catch(oError){;}}}if(zXml.DOM_VER){return new ActiveXObject(zXml.DOM_VER);}else{throw new Error("Could not create XML DOM document.");}}else{throw new Error("Your browser doesn't support an XML DOM document.");}};zXmlDom.isSupported=function(){return zXml.useDom||zXml.useActiveX;};var oMozDocument=null;if(typeof XMLDocument!="undefined"){oMozDocument=XMLDocument;}else if(typeof Document!="undefined"){oMozDocument=Document;}if(oMozDocument&&!window.opera){oMozDocument.prototype.readyState=0;oMozDocument.prototype.onreadystatechange=null;oMozDocument.prototype.__changeReadyState__=function(iReadyState){this.readyState=iReadyState;if(typeof this.onreadystatechange=="function"){this.onreadystatechange();}};oMozDocument.prototype.__initError__=function(){this.parseError.errorCode=0;this.parseError.filepos=-1;this.parseError.line=-1;this.parseError.linepos=-1;this.parseError.reason=null;this.parseError.srcText=null;this.parseError.url=null;};oMozDocument.prototype.__checkForErrors__=function(){if(this.documentElement.tagName=="parsererror"){var reError=/>([\s\S]*?)Location:([\s\S]*?)Line Number(\d+),Column(\d+):<sourcetext>([\s\S]*?)(?:\-*\^)/;reError.test(this.xml);this.parseError.errorCode=-999999;this.parseError.reason=RegExp.$1;this.parseError.url=RegExp.$2;this.parseError.line=parseInt(RegExp.$3);this.parseError.linepos=parseInt(RegExp.$4);this.parseError.srcText=RegExp.$5;}};oMozDocument.prototype.loadXML=function(sXml){this.__initError__();this.__changeReadyState__(1);var oParser=new DOMParser();var oXmlDom=oParser.parseFromString(sXml,"text/xml");while(this.firstChild){this.removeChild(this.firstChild);}for(var i=0;i<oXmlDom.childNodes.length;i++){var oNewNode=this.importNode(oXmlDom.childNodes[i],true);this.appendChild(oNewNode);}this.__checkForErrors__();this.__changeReadyState__(4);};oMozDocument.prototype.__load__=oMozDocument.prototype.load;oMozDocument.prototype.load=function(sURL){this.__initError__();this.__changeReadyState__(1);this.__load__(sURL);};Node.prototype.__defineGetter__("xml",function(){var oSerializer=new XMLSerializer();return oSerializer.serializeToString(this,"text/xml");});Node.prototype.__defineGetter__("text",function(){var sText="";for(var i=0;i<this.childNodes.length;i++){if(this.childNodes[i].hasChildNodes()){sText+=this.childNodes[i].text;}else{sText+=this.childNodes[i].nodeValue;}}return sText;});}function zXslt(){}zXslt.transformToText=function(oXml,oXslt){if(typeof XSLTProcessor!="undefined"){var oProcessor=new XSLTProcessor();oProcessor.importStylesheet(oXslt);var oResultDom=oProcessor.transformToDocument(oXml);var sResult=oResultDom.xml;if(sResult.indexOf("<transformiix:result")>-1){sResult=sResult.substring(sResult.indexOf(">")+1,sResult.lastIndexOf("<"));}return sResult;;}else if(zXml.useActiveX){return oXml.transformNode(oXslt);}else{throw new Error("No XSLT engine found.");}};function zXPath(){}zXPath.selectNodes=function(oRefNode,sXPath,sXmlNs){if(typeof XPathEvaluator!="undefined"){oXmlNs=oXmlNs||{};var nsResolver=function(sPrefix){return oXmlNs[sPrefix];};var oEvaluator=new XPathEvaluator();var oResult=oEvaluator.evaluate(sXPath,oRefNode,nsResolver,XPathResult.ORDERED_NODE_ITERATOR_TYPE,null);var aNodes=new Array;if(oResult!=null){var oElement=oResult.iterateNext();while(oElement){aNodes.push(oElement);oElement=oResult.iterateNext();}}return aNodes;}else if(zXml.useActiveX){if(oXmlNs){var sXmlNs="";for(var sProp in oXmlNs){sXmlNs+="xmlns:"+sProp+"="+oXmlNs[sProp]+" ";}oRefNode.ownerDocument.setProperty("SelectionNamespaces",sXmlNs);};return oRefNode.selectNodes(sXPath);}else{throw new Error("No XPath engine found.");}};zXPath.selectSingleNode=function(oRefNode,sXPath,oXmlNs){if(typeof XPathEvaluator!="undefined"){;oXmlNs=oXmlNs||{};var nsResolver=function(sPrefix){return oXmlNs[sPrefix];};var oEvaluator=new XPathEvaluator();var oResult=oEvaluator.evaluate(sXPath,oRefNode,nsResolver,XPathResult.FIRST_ORDERED_NODE_TYPE,null);if(oResult!=null){return oResult.singleNodeValue;}else{return null;};}else if(zXML.useActiveX){if(oXmlNs){var sXmlNs="";for(var sProp in oXmlNs){sXmlNs+="xmlns:"+sProp+"="+oXmlNs[sProp]+" ";}oRefNode.ownerDocument.setProperty("SelectionNamespaces",sXmlNs);};return oRefNode.selectSingleNode(sXPath);}else{throw new Error("No XPath engine found.");}};function zXMLSerializer(){}zXMLSerializer.prototype.serializeToString=function(oNode){var sXml="";switch(oNode.nodeType){case 1:sXml="<"+oNode.tagName;for(var i=0;i<oNode.attributes.length;i++){sXml+=" "+oNode.attributes[i].name+"=\""+oNode.attributes[i].value+"\"";}sXml+=">";for(var i=0;i<oNode.childNodes.length;i++){sXml+=this.serializeToString(oNode.childNodes[i]);}sXml+="</"+oNode.tagName+">";break;case 3:sXml=oNode.nodeValue;break;case 4:sXml="<![CDATA["+oNode.nodeValue+"]]>";break;case 7:sXml="<?"+oNode.nodevalue+"?>";break;case 8:sXml="<!--"+oNode.nodevalue+"-->";break;case 9:for(var i=0;i<oNode.childNodes.length;i++){sXml+=this.serializeToString(oNode.childNodes[i]);}break;};return sXml;};