130 lines
8.4 KiB
JavaScript
130 lines
8.4 KiB
JavaScript
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// JavaScript Document
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// ===================================================================
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// Author: Matt Kruse <matt@ajaxtoolbox.com>
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// WWW: http://www.AjaxToolbox.com/
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//
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// NOTICE: You may use this code for any purpose, commercial or
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// private, without any further permission from the author. You may
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// remove this notice from your final code if you wish, however it is
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// appreciated by the author if at least my web site address is kept.
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//
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// You may *NOT* re-distribute this code in any way except through its
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// use. That means, you can include it in your product, or your web
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// site, or any other form where the code is actually being used. You
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// may not put the plain javascript up on your site for download or
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// include it in your javascript libraries for download.
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// If you wish to share this code with others, please just point them
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// to the URL instead.
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// Please DO NOT link directly to my .js files from your site. Copy
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// the files to your server and use them there. Thank you.
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// ===================================================================
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function AjaxRequest(){var req =new Object();
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req.timeout =null;
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req.generateUniqueUrl =true;
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req.url =window.location.href;
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req.method ="GET";
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req.async =true;
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req.username =null;
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req.password =null;
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req.parameters =new Object();
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req.requestIndex =AjaxRequest.numAjaxRequests++;
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req.responseReceived =false;
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req.groupName =null;
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req.queryString ="";
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req.responseText =null;
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req.responseXML =null;
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req.status =null;
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req.statusText =null;
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req.aborted =false;
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req.xmlHttpRequest =null;
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req.onTimeout=null;
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req.onLoading=null;
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req.onLoaded=null;
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req.onInteractive=null;
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req.onComplete=null;
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req.onSuccess=null;
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req.onError=null;
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req.onGroupBegin=null;
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req.onGroupEnd=null;
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req.xmlHttpRequest =AjaxRequest.getXmlHttpRequest();
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if(req.xmlHttpRequest==null){return null;}req.xmlHttpRequest.onreadystatechange =
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function(){if(req==null || req.xmlHttpRequest==null){return;}if(req.xmlHttpRequest.readyState==1){req.onLoadingInternal(req);}if(req.xmlHttpRequest.readyState==2){req.onLoadedInternal(req);}if(req.xmlHttpRequest.readyState==3){req.onInteractiveInternal(req);}if(req.xmlHttpRequest.readyState==4){req.onCompleteInternal(req);}};
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req.onLoadingInternalHandled=false;
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req.onLoadedInternalHandled=false;
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req.onInteractiveInternalHandled=false;
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req.onCompleteInternalHandled=false;
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req.onLoadingInternal=
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function(){if(req.onLoadingInternalHandled){return;}AjaxRequest.numActiveAjaxRequests++;
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if(AjaxRequest.numActiveAjaxRequests==1 && typeof(window['AjaxRequestBegin'])=="function"){AjaxRequestBegin();}if(req.groupName!=null){if(typeof(AjaxRequest.numActiveAjaxGroupRequests[req.groupName])=="undefined"){AjaxRequest.numActiveAjaxGroupRequests[req.groupName] =0;}AjaxRequest.numActiveAjaxGroupRequests[req.groupName]++;
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if(AjaxRequest.numActiveAjaxGroupRequests[req.groupName]==1 && typeof(req.onGroupBegin)=="function"){req.onGroupBegin(req.groupName);}}if(typeof(req.onLoading)=="function"){req.onLoading(req);}req.onLoadingInternalHandled=true;};
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req.onLoadedInternal=
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function(){if(req.onLoadedInternalHandled){return;}if(typeof(req.onLoaded)=="function"){req.onLoaded(req);}req.onLoadedInternalHandled=true;};
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req.onInteractiveInternal=
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function(){if(req.onInteractiveInternalHandled){return;}if(typeof(req.onInteractive)=="function"){req.onInteractive(req);}req.onInteractiveInternalHandled=true;};
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req.onCompleteInternal=
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function(){if(req.onCompleteInternalHandled || req.aborted){return;}req.onCompleteInternalHandled=true;
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AjaxRequest.numActiveAjaxRequests--;
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if(AjaxRequest.numActiveAjaxRequests==0 && typeof(window['AjaxRequestEnd'])=="function"){AjaxRequestEnd(req.groupName);}if(req.groupName!=null){AjaxRequest.numActiveAjaxGroupRequests[req.groupName]--;
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if(AjaxRequest.numActiveAjaxGroupRequests[req.groupName]==0 && typeof(req.onGroupEnd)=="function"){req.onGroupEnd(req.groupName);}}req.responseReceived =true;
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req.status =req.xmlHttpRequest.status;
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req.statusText =req.xmlHttpRequest.statusText;
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req.responseText =req.xmlHttpRequest.responseText;
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req.responseXML =req.xmlHttpRequest.responseXML;
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if(typeof(req.onComplete)=="function"){req.onComplete(req);}if(req.xmlHttpRequest.status==200 && typeof(req.onSuccess)=="function"){req.onSuccess(req);}else if(typeof(req.onError)=="function"){req.onError(req);}delete req.xmlHttpRequest['onreadystatechange'];
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req.xmlHttpRequest =null;};
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req.onTimeoutInternal=
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function(){if(req!=null && req.xmlHttpRequest!=null && !req.onCompleteInternalHandled){req.aborted =true;
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req.xmlHttpRequest.abort();
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AjaxRequest.numActiveAjaxRequests--;
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if(AjaxRequest.numActiveAjaxRequests==0 && typeof(window['AjaxRequestEnd'])=="function"){AjaxRequestEnd(req.groupName);}if(req.groupName!=null){AjaxRequest.numActiveAjaxGroupRequests[req.groupName]--;
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if(AjaxRequest.numActiveAjaxGroupRequests[req.groupName]==0 && typeof(req.onGroupEnd)=="function"){req.onGroupEnd(req.groupName);}}if(typeof(req.onTimeout)=="function"){req.onTimeout(req);}delete req.xmlHttpRequest['onreadystatechange'];
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req.xmlHttpRequest =null;}};
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req.process =
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function(){if(req.xmlHttpRequest!=null){if(req.generateUniqueUrl && req.method=="GET"){req.parameters["AjaxRequestUniqueId"] =new Date().getTime() + "" + req.requestIndex;}var content =null;
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for(var i in req.parameters){if(req.queryString.length>0){req.queryString +="&";}req.queryString +=encodeURIComponent(i) + "=" + encodeURIComponent(req.parameters[i]);}if(req.method=="GET"){if(req.queryString.length>0){req.url +=((req.url.indexOf("?")>-1)?"&":"?") + req.queryString;}}req.xmlHttpRequest.open(req.method,req.url,req.async,req.username,req.password);
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if(req.method=="POST"){if(typeof(req.xmlHttpRequest.setRequestHeader)!="undefined"){req.xmlHttpRequest.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');}content =req.queryString;}if(req.timeout>0){setTimeout(req.onTimeoutInternal,req.timeout);}req.xmlHttpRequest.send(content);}};
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req.handleArguments =
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function(args){for(var i in args){if(typeof(req[i])=="undefined"){req.parameters[i] =args[i];}else{req[i] =args[i];}}};
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req.getAllResponseHeaders =
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function(){if(req.xmlHttpRequest!=null){if(req.responseReceived){return req.xmlHttpRequest.getAllResponseHeaders();}alert("Cannot getAllResponseHeaders because a response has not yet been received");}};
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req.getResponseHeader =
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function(headerName){if(req.xmlHttpRequest!=null){if(req.responseReceived){return req.xmlHttpRequest.getResponseHeader(headerName);}alert("Cannot getResponseHeader because a response has not yet been received");}};
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return req;}AjaxRequest.getXmlHttpRequest =function(){if(window.XMLHttpRequest){return new XMLHttpRequest();}else if(window.ActiveXObject){/*@cc_on @*/
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/*@if(@_jscript_version >=5)
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try{return new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{return new ActiveXObject("Microsoft.XMLHTTP");}catch(E){return null;}}@end @*/}else{return null;}};
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AjaxRequest.isActive =function(){return(AjaxRequest.numActiveAjaxRequests>0);};
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AjaxRequest.get =function(args){AjaxRequest.doRequest("GET",args);};
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AjaxRequest.post =function(args){AjaxRequest.doRequest("POST",args);};
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AjaxRequest.doRequest =function(method,args){if(typeof(args)!="undefined" && args!=null){var myRequest =new AjaxRequest();
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myRequest.method =method;
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myRequest.handleArguments(args);
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myRequest.process();}};
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AjaxRequest.submit =function(theform, args){var myRequest =new AjaxRequest();
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if(myRequest==null){return false;}var serializedForm =AjaxRequest.serializeForm(theform);
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myRequest.method =theform.method.toUpperCase();
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myRequest.url =theform.action;
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myRequest.handleArguments(args);
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myRequest.queryString =serializedForm;
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myRequest.process();
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return true;};
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AjaxRequest.serializeForm =function(theform){var els =theform.elements;
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var len =els.length;
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var queryString ="";
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this.addField =
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function(name,value){if(queryString.length>0){queryString +="&";}queryString +=encodeURIComponent(name) + "=" + encodeURIComponent(value);};
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for(var i=0;i<len;i++){var el =els[i];
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if(!el.disabled){switch(el.type){case 'text': case 'password': case 'hidden': case 'textarea':
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this.addField(el.name,el.value);
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break;
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case 'select-one':
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if(el.selectedIndex>=0){this.addField(el.name,el.options[el.selectedIndex].value);}break;
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case 'select-multiple':
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for(var j=0;j<el.options.length;j++){if(el.options[j].selected){this.addField(el.name,el.options[j].value);}}break;
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case 'checkbox': case 'radio':
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if(el.checked){this.addField(el.name,el.value);}break;}}}return queryString;};
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AjaxRequest.numActiveAjaxRequests =0;
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AjaxRequest.numActiveAjaxGroupRequests =new Object();
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AjaxRequest.numAjaxRequests =0;// -- Standard functions
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