xp-dev.com Git - namibia/blob - public/js/vendor/ape-source/Request/Request.js

   1 APE.Request = new Class({
   2         initialize: function(ape) {
   3                 this.ape = ape;
   4                 this.stack = new APE.Request.Stack(ape);
   5                 this.cycledStack = new APE.Request.CycledStack(ape);
   6                 this.chl = 1;
   7                 this.callbackChl = new $H;
   8
   9                 //Fix presto bug (see send method)
  10                 if (Browser.Engine.presto){
  11                         this.requestVar = {
  12                                 updated: false,
  13                                 args: []
  14                         };
  15                         this.requestObserver.periodical(10, this);
  16                 }
  17         },
  18
  19         send: function(cmd, params, options, noWatch) {
  20                 if (this.ape.requestDisabled) return;
  21                 //Opera dirty fix
  22                 if (Browser.Engine.presto && !noWatch) {
  23                         this.requestVar.updated = true;
  24                         this.requestVar.args.push([cmd, params, options]);
  25                         return;
  26                 }
  27
  28                 var opt = {};
  29                 if (!options) options = {};
  30
  31                 opt.event = options.event || true;
  32                 opt.requestCallback = options.requestCallback || null;
  33                 opt.callback = options.callback;
  34                 var ret = this.ape.transport.send(this.parseCmd(cmd, params, opt), opt);
  35
  36                 $clear(this.ape.pollerObserver);
  37                 this.ape.pollerObserver = this.ape.poller.delay(this.ape.options.pollTime, this.ape);
  38
  39                 return ret;
  40         },
  41
  42         parseCmd: function(cmd, params, options) {
  43                 var queryString = '';
  44                 var a = [];
  45                 var o = {};
  46                 if ($type(cmd) == 'array') {
  47                         var tmp, evParams;
  48                         for (var i = 0; i < cmd.length; i++) {
  49                                 tmp = cmd[i];
  50
  51                                 o = {};
  52                                 o.cmd = tmp.cmd;
  53                                 o.chl = this.chl++;
  54                                 if (!tmp.options) tmp.options = {};
  55
  56                                 tmp.params ? o.params = tmp.params : null;
  57                                 evParams = $extend({}, o.params);
  58
  59
  60                                 if (!$defined(tmp.options.sessid) || tmp.options.sessid !== false) o.sessid = this.ape.sessid;
  61                                 a.push(o);
  62
  63                                 var ev = 'cmd_' + tmp.cmd.toLowerCase();
  64
  65                                 if (tmp.options.callback) this.callbackChl.set(o.chl, tmp.options.callback);
  66                                 if (tmp.options.requestCallback) options.requestCallback = tmp.options.requestCallback;
  67                                 if (options.event) {
  68                                         //Request is on a pipe, fire the event on the pipe
  69                                         if (o.params && o.params.pipe) {
  70                                                 var pipe = this.ape.getPipe(o.params.pipe);
  71                                                 if (pipe) evParams = [evParams, pipe];
  72                                         }
  73
  74                                         this.ape.fireEvent('onCmd', [tmp.cmd, evParams]);
  75
  76                                         if (pipe) pipe.fireEvent(ev, evParams);
  77
  78                                         this.ape.fireEvent(ev, evParams);
  79                                 }
  80                         }
  81                 } else {
  82                         o.cmd = cmd;
  83                         o.chl = this.chl++;
  84
  85                         params ? o.params = params : null;
  86                         var evParams = $extend({}, params);
  87
  88
  89                         if (!$defined(options.sessid) || options.sessid !== false) o.sessid = this.ape.sessid;
  90                         a.push(o);
  91
  92                         var ev = 'cmd_' + cmd.toLowerCase();
  93                         if (options.callback) this.callbackChl.set(o.chl, options.callback);
  94
  95                         if (options.event) {
  96                                 //Request is on a pipe, fire the event on the pipe
  97                                 if (params && params.pipe) {
  98                                         var pipe = this.ape.getPipe(params.pipe);
  99                                         if (pipe) evParams = [evParams, pipe];
 100                                 }
 101                                 this.ape.fireEvent('onCmd', [cmd, evParams]);
 102
 103                                 if (pipe) pipe.fireEvent(ev, evParams);
 104
 105                                 this.ape.fireEvent(ev, evParams);
 106                         }
 107                 }
 108
 109                 var transport = this.ape.options.transport;
 110                 return JSON.stringify(a, function(key, value) {
 111                                 if (typeof(value) == 'string') {
 112                                         value = encodeURIComponent(value);
 113                                         //In case of JSONP data have to be escaped two times
 114                                         if (transport == 2) value = encodeURIComponent(value);
 115                                         return value;
 116                                 } else return value;
 117                         });
 118         },
 119
 120         /****
 121          * This method is only used by opera.
 122          * Opera have a bug, when request are sent trought user action (ex : a click), opera throw a security violation when trying to make a XHR.
 123          * The only way is to set a class var and watch when this var change
 124          */
 125         requestObserver: function(){
 126                 if (this.requestVar.updated) {
 127                         var args = this.requestVar.args.shift();
 128                         this.requestVar.updated = (this.requestVar.args.length>0) ? true : false;
 129                         args[3] = true; //Set noWatch argument to true
 130                         this.send.run(args, this);
 131                 }
 132         }
 133 });