133 lines
3.8 KiB
JavaScript
133 lines
3.8 KiB
JavaScript
/* Simple AJAX Code-Kit (SACK) */
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/* ©2005 Gregory Wild-Smith */
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/* www.twilightuniverse.com */
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/* Software licenced under a modified X11 licence, see documentation or authors website for more details */
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function sack(file){
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this.AjaxFailedAlert = "Your browser does not support the enhanced functionality of this website, and therefore you will have an experience that differs from the intended one.\n";
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this.requestFile = file;
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this.method = "POST";
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this.URLString = "";
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this.encodeURIString = true;
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this.execute = false;
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this.onLoading = function() { };
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this.onLoaded = function() { };
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this.onInteractive = function() { };
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this.onCompletion = function() { };
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this.createAJAX = function() {
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try {
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this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
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} catch (e) {
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try {
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this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
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} catch (err) {
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this.xmlhttp = null;
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}
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}
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if(!this.xmlhttp && typeof XMLHttpRequest != "undefined")
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this.xmlhttp = new XMLHttpRequest();
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if (!this.xmlhttp){
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this.failed = true;
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}
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};
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this.setVar = function(name, value){
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if (this.URLString.length < 3){
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this.URLString = name + "=" + value;
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} else {
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this.URLString += "&" + name + "=" + value;
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}
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}
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this.encVar = function(name, value){
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var varString = encodeURIComponent(name) + "=" + encodeURIComponent(value);
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return varString;
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}
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this.encodeURLString = function(string){
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varArray = string.split('&');
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for (i = 0; i < varArray.length; i++){
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urlVars = varArray[i].split('=');
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if (urlVars[0].indexOf('amp;') != -1){
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urlVars[0] = urlVars[0].substring(4);
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}
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varArray[i] = this.encVar(urlVars[0],urlVars[1]);
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}
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return varArray.join('&');
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}
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this.runResponse = function(){
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eval(this.response);
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}
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this.runAJAX = function(urlstring){
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this.responseStatus = new Array(2);
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if(this.failed && this.AjaxFailedAlert){
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alert(this.AjaxFailedAlert);
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} else {
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if (urlstring){
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if (this.URLString.length){
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this.URLString = this.URLString + "&" + urlstring;
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} else {
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this.URLString = urlstring;
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}
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}
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if (this.encodeURIString){
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var timeval = new Date().getTime();
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this.URLString = this.encodeURLString(this.URLString);
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this.setVar("rndval", timeval);
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}
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if (this.element) { this.elementObj = document.getElementById(this.element); }
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if (this.xmlhttp) {
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var self = this;
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if (this.method == "GET") {
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var totalurlstring = this.requestFile + "?" + this.URLString;
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this.xmlhttp.open(this.method, totalurlstring, true);
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} else {
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this.xmlhttp.open(this.method, this.requestFile, true);
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}
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if (this.method == "POST"){
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try {
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this.xmlhttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded')
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} catch (e) {}
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}
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this.xmlhttp.send(this.URLString);
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this.xmlhttp.onreadystatechange = function() {
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switch (self.xmlhttp.readyState){
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case 1:
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self.onLoading();
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break;
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case 2:
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self.onLoaded();
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break;
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case 3:
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self.onInteractive();
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break;
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case 4:
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self.response = self.xmlhttp.responseText;
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self.responseXML = self.xmlhttp.responseXML;
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self.responseStatus[0] = self.xmlhttp.status;
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self.responseStatus[1] = self.xmlhttp.statusText;
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self.onCompletion();
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if(self.execute){ self.runResponse(); }
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if (self.elementObj) {
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var elemNodeName = self.elementObj.nodeName;
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elemNodeName.toLowerCase();
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if (elemNodeName == "input" || elemNodeName == "select" || elemNodeName == "option" || elemNodeName == "textarea"){
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self.elementObj.value = self.response;
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} else {
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self.elementObj.innerHTML = self.response;
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}
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}
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self.URLString = "";
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break;
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}
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};
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}
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}
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};
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this.createAJAX();
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} |