wp-includes/js/tw-sack.dev.js

   1 /* Simple AJAX Code-Kit (SACK) v1.6.1 */
   2 /* ©2005 Gregory Wild-Smith */
   3 /* www.twilightuniverse.com */
   4 /* Software licenced under a modified X11 licence,
   5    see documentation or authors website for more details */
   6
   7 function sack(file) {
   8         this.xmlhttp = null;
   9
  10         this.resetData = function() {
  11                 this.method = "POST";
  12                 this.queryStringSeparator = "?";
  13                 this.argumentSeparator = "&";
  14                 this.URLString = "";
  15                 this.encodeURIString = true;
  16                 this.execute = false;
  17                 this.element = null;
  18                 this.elementObj = null;
  19                 this.requestFile = file;
  20                 this.vars = new Object();
  21                 this.responseStatus = new Array(2);
  22         };
  23
  24         this.resetFunctions = function() {
  25                 this.onLoading = function() { };
  26                 this.onLoaded = function() { };
  27                 this.onInteractive = function() { };
  28                 this.onCompletion = function() { };
  29                 this.onError = function() { };
  30                 this.onFail = function() { };
  31         };
  32
  33         this.reset = function() {
  34                 this.resetFunctions();
  35                 this.resetData();
  36         };
  37
  38         this.createAJAX = function() {
  39                 try {
  40                         this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  41                 } catch (e1) {
  42                         try {
  43                                 this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  44                         } catch (e2) {
  45                                 this.xmlhttp = null;
  46                         }
  47                 }
  48
  49                 if (! this.xmlhttp) {
  50                         if (typeof XMLHttpRequest != "undefined") {
  51                                 this.xmlhttp = new XMLHttpRequest();
  52                         } else {
  53                                 this.failed = true;
  54                         }
  55                 }
  56         };
  57
  58         this.setVar = function(name, value){
  59                 this.vars[name] = Array(value, false);
  60         };
  61
  62         this.encVar = function(name, value, returnvars) {
  63                 if (true == returnvars) {
  64                         return Array(encodeURIComponent(name), encodeURIComponent(value));
  65                 } else {
  66                         this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
  67                 }
  68         }
  69
  70         this.processURLString = function(string, encode) {
  71                 encoded = encodeURIComponent(this.argumentSeparator);
  72                 regexp = new RegExp(this.argumentSeparator + "|" + encoded);
  73                 varArray = string.split(regexp);
  74                 for (i = 0; i < varArray.length; i++){
  75                         urlVars = varArray[i].split("=");
  76                         if (true == encode){
  77                                 this.encVar(urlVars[0], urlVars[1]);
  78                         } else {
  79                                 this.setVar(urlVars[0], urlVars[1]);
  80                         }
  81                 }
  82         }
  83
  84         this.createURLString = function(urlstring) {
  85                 if (this.encodeURIString && this.URLString.length) {
  86                         this.processURLString(this.URLString, true);
  87                 }
  88
  89                 if (urlstring) {
  90                         if (this.URLString.length) {
  91                                 this.URLString += this.argumentSeparator + urlstring;
  92                         } else {
  93                                 this.URLString = urlstring;
  94                         }
  95                 }
  96
  97                 // prevents caching of URLString
  98                 this.setVar("rndval", new Date().getTime());
  99
 100                 urlstringtemp = new Array();
 101                 for (key in this.vars) {
 102                         if (false == this.vars[key][1] && true == this.encodeURIString) {
 103                                 encoded = this.encVar(key, this.vars[key][0], true);
 104                                 delete this.vars[key];
 105                                 this.vars[encoded[0]] = Array(encoded[1], true);
 106                                 key = encoded[0];
 107                         }
 108
 109                         urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0];
 110                 }
 111                 if (urlstring){
 112                         this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
 113                 } else {
 114                         this.URLString += urlstringtemp.join(this.argumentSeparator);
 115                 }
 116         }
 117
 118         this.runResponse = function() {
 119                 eval(this.response);
 120         }
 121
 122         this.runAJAX = function(urlstring) {
 123                 if (this.failed) {
 124                         this.onFail();
 125                 } else {
 126                         this.createURLString(urlstring);
 127                         if (this.element) {
 128                                 this.elementObj = document.getElementById(this.element);
 129                         }
 130                         if (this.xmlhttp) {
 131                                 var self = this;
 132                                 if (this.method == "GET") {
 133                                         totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
 134                                         this.xmlhttp.open(this.method, totalurlstring, true);
 135                                 } else {
 136                                         this.xmlhttp.open(this.method, this.requestFile, true);
 137                                         try {
 138                                                 this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
 139                                         } catch (e) { }
 140                                 }
 141
 142                                 this.xmlhttp.onreadystatechange = function() {
 143                                         switch (self.xmlhttp.readyState) {
 144                                                 case 1:
 145                                                         self.onLoading();
 146                                                         break;
 147                                                 case 2:
 148                                                         self.onLoaded();
 149                                                         break;
 150                                                 case 3:
 151                                                         self.onInteractive();
 152                                                         break;
 153                                                 case 4:
 154                                                         self.response = self.xmlhttp.responseText;
 155                                                         self.responseXML = self.xmlhttp.responseXML;
 156                                                         self.responseStatus[0] = self.xmlhttp.status;
 157                                                         self.responseStatus[1] = self.xmlhttp.statusText;
 158
 159                                                         if (self.execute) {
 160                                                                 self.runResponse();
 161                                                         }
 162
 163                                                         if (self.elementObj) {
 164                                                                 elemNodeName = self.elementObj.nodeName;
 165                                                                 elemNodeName.toLowerCase();
 166                                                                 if (elemNodeName == "input"
 167                                                                 || elemNodeName == "select"
 168                                                                 || elemNodeName == "option"
 169                                                                 || elemNodeName == "textarea") {
 170                                                                         self.elementObj.value = self.response;
 171                                                                 } else {
 172                                                                         self.elementObj.innerHTML = self.response;
 173                                                                 }
 174                                                         }
 175                                                         if (self.responseStatus[0] == "200") {
 176                                                                 self.onCompletion();
 177                                                         } else {
 178                                                                 self.onError();
 179                                                         }
 180
 181                                                         self.URLString = "";
 182                                                         break;
 183                                         }
 184                                 };
 185
 186                                 this.xmlhttp.send(this.URLString);
 187                         }
 188                 }
 189         };
 190
 191         this.reset();
 192         this.createAJAX();
 193 }