summaryrefslogtreecommitdiff
path: root/lib/scripts/tw-sack.js
blob: cc988f5bedbab94b744c55e4b7e87ba9abef723c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/* Simple AJAX Code-Kit (SACK) */
/* ©2005 Gregory Wild-Smith */
/* www.twilightuniverse.com */
/* Software licenced under a modified X11 licence, see documentation or authors website for more details */

function sack(file){
  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";
  this.requestFile = file;
  this.method = "POST";
  this.URLString = "";
  this.encodeURIString = true;
  this.execute = false;
  this.asynchronous = true;

  this.onLoading = function() { };
  this.onLoaded = function() { };
  this.onInteractive = function() { };
  this.onCompletion = function() { };
  this.afterCompletion = function() { };

  this.createAJAX = function() {
    try {
      this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (err) {
        this.xmlhttp = null;
      }
    }
    if(!this.xmlhttp && typeof XMLHttpRequest != "undefined"){
      this.xmlhttp = new XMLHttpRequest();
    }
    if (!this.xmlhttp){
      this.failed = true;
    }
  };

  this.setVar = function(name, value){
    if (this.URLString.length < 3){
      this.URLString = name + "=" + value;
    } else {
      this.URLString += "&" + name + "=" + value;
    }
  };

  this.encVar = function(name, value){
    var varString = encodeURIComponent(name) + "=" + encodeURIComponent(value);
  return varString;
  };

  this.encodeURLString = function(string){
    varArray = string.split('&');
    for (i = 0; i < varArray.length; i++){
      urlVars = varArray[i].split('=');
      if (urlVars[0].indexOf('amp;') != -1){
        urlVars[0] = urlVars[0].substring(4);
      }
      varArray[i] = this.encVar(urlVars[0],urlVars[1]);
    }
  return varArray.join('&');
  };

  this.runResponse = function(){
    eval(this.response);
  };

  this.runAJAX = function(urlstring){
    DEPRECATED('Please use jQuery.post() or any other of jQuery\'s AJAX methods.');

    this.responseStatus = new Array(2);
    if(this.failed && this.AjaxFailedAlert){
      alert(this.AjaxFailedAlert);
    } else {
      if (urlstring){
        if (this.URLString.length){
          this.URLString = this.URLString + "&" + urlstring;
        } else {
          this.URLString = urlstring;
        }
      }
      if (this.encodeURIString){
        var timeval = new Date().getTime();
        this.URLString = this.encodeURLString(this.URLString);
        this.setVar("rndval", timeval);
      }
      if (this.element) { this.elementObj = document.getElementById(this.element); }
      if (this.xmlhttp) {
        var self = this;
        if (this.method == "GET") {
          var totalurlstring = this.requestFile + "?" + this.URLString;
          this.xmlhttp.open(this.method, totalurlstring, this.asynchronous);
        } else {
          this.xmlhttp.open(this.method, this.requestFile, this.asynchronous);
        }
        if (this.method == "POST"){
          try {
             this.xmlhttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=UTF-8');
          } catch (e) {}
        }

        this.xmlhttp.onreadystatechange = function() {
          switch (self.xmlhttp.readyState){
            case 1:
              self.onLoading();
            break;
            case 2:
              self.onLoaded();
            break;
            case 3:
              self.onInteractive();
            break;
            case 4:
              self.response = self.xmlhttp.responseText;
              self.responseXML = self.xmlhttp.responseXML;
              self.responseStatus[0] = self.xmlhttp.status;
              self.responseStatus[1] = self.xmlhttp.statusText;
              self.onCompletion();
              if(self.execute){ self.runResponse(); }
              if (self.elementObj) {
                var elemNodeName = self.elementObj.nodeName;
                elemNodeName.toLowerCase();
                if (elemNodeName == "input" || elemNodeName == "select" || elemNodeName == "option" || elemNodeName == "textarea"){
                  self.elementObj.value = self.response;
                } else {
                  self.elementObj.innerHTML = self.response;
                }
              }
              self.afterCompletion();
              self.URLString = "";
            break;
          }
        };
        this.xmlhttp.send(this.URLString);
      }
    }
  };
this.createAJAX();
}