/[meteor]/googlecode.com/svn/trunk/public_html/meteor.js
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 21 by andrew.betts, Mon May 14 13:42:45 2007 UTC revision 27 by andrew.betts, Wed Aug 1 17:38:00 2007 UTC
# Line 30  function Meteor(instID) { Line 30  function Meteor(instID) {
30          this.callback_eof = function() {};          this.callback_eof = function() {};
31          this.callback_changemode = function() {};          this.callback_changemode = function() {};
32          this.callback_statuschanged = function() {};          this.callback_statuschanged = function() {};
33          this.persist = true;          this.persist = 1;
34          this.frameloadtimer = false;          this.frameloadtimer = false;
35          this.debugmode = false;          this.debugmode = false;
36          this.subsurl = false;          this.subsurl = false;
# Line 42  function Meteor(instID) { Line 42  function Meteor(instID) {
42          // Documented public properties          // Documented public properties
43          this.subdomain = "data";          this.subdomain = "data";
44          this.dynamicpageaddress = "push";          this.dynamicpageaddress = "push";
45          this.smartpoll = true;          this.smartpoll = 1;
46          this.pollfreq = 2000;          this.pollfreq = 2000;
47          this.minpollfreq = 2000;          this.minpollfreq = 2000;
48          this.mode = "poll";          this.mode = "stream";
49          this.polltimeout=30000;          this.polltimeout = 30000;
50          this.pingtimeout = 10000;          this.pingtimeout = 10000;
51          this.maxmessages = 0;          this.maxmessages = 0;
52          this.status = 0;          this.status = 0;
# Line 107  Meteor.prototype.leaveChannel = function Line 107  Meteor.prototype.leaveChannel = function
107  }  }
108    
109  Meteor.prototype.start = function() {  Meteor.prototype.start = function() {
110          this.persist = (this.maxmessages)?1:0;          this.persist = (this.persist)?1:0;
111          this.smartpoll = (this.smartpoll)?1:0;          this.smartpoll = (this.smartpoll)?1:0;
112          this.mode = (this.mode=="stream")?"stream":"poll";          this.mode = (this.mode=="stream")?"stream":"poll";
113          if (!this.subdomain || !this.channelcount) throw "Channel or Meteor subdomain host not specified";          if (!this.subdomain || !this.channelcount) throw "Channel or Meteor subdomain host not specified";
# Line 115  Meteor.prototype.start = function() { Line 115  Meteor.prototype.start = function() {
115          var now = new Date();          var now = new Date();
116          var t = now.getTime();          var t = now.getTime();
117          this.setstatus(1);          this.setstatus(1);
118          var surl = "http://" + this.subdomain + "." + location.hostname + "/" + this.dynamicpageaddress + "?id=" + this.MHostId;          this.updateSubsUrl();
         if (this.maxmessages && !this.persist) surl += "&maxmessages=" + this.maxmessages;  
         for (var c in this.channels) {  
                 surl += "&channel="+c;  
                 if (this.channels[c].lastmsgreceived > 0) {  
                         surl += "&restartfrom="+this.channels[c].lastmsgreceived;  
                 } else if (this.channels[c].backtrack > 0) {  
                         surl += "&backtrack="+this.channels[c].backtrack;  
                 } else if (this.channels[c].backtrack < 0 || isNaN(this.channels[c].backtrack)) {  
                         surl += "&restartfrom=";  
                 }  
         }  
         this.subsurl = surl;  
119          if (this.mode=="stream") {          if (this.mode=="stream") {
120                  if (document.all) {                  if (document.all) {
121                          this.createIframe(this.subsurl);                          this.createIframe(this.subsurl);
# Line 139  Meteor.prototype.start = function() { Line 127  Meteor.prototype.start = function() {
127                  this.pingtimer = setTimeout(f, this.pingtimeout);                  this.pingtimer = setTimeout(f, this.pingtimeout);
128    
129          } else {          } else {
130                  this.createIframe("http://"+this.subdomain+"."+location.hostname+"/poll.html");                  this.createIframe("http://"+this.subdomain+"."+location.hostname+"/poll.html?nc="+t);
131                  this.recvtimes[0] = t;                  this.recvtimes[0] = t;
132                  if (this.updatepollfreqtimer) clearTimeout(this.updatepollfreqtimer);                  if (this.updatepollfreqtimer) clearTimeout(this.updatepollfreqtimer);
133                  this.updatepollfreqtimer = setInterval(this.updatepollfreq.bind(this), 2500);                  this.updatepollfreqtimer = setInterval(this.updatepollfreq.bind(this), 2500);
# Line 147  Meteor.prototype.start = function() { Line 135  Meteor.prototype.start = function() {
135          this.lastrequest = t;          this.lastrequest = t;
136  }  }
137    
138    Meteor.prototype.updateSubsUrl = function() {
139    
140            // If streaming or long polling, connection should persist
141            this.persist = (this.mode == "stream" || (this.mode=='poll' && this.maxmessages > 0)) ? 1 : 0;
142            var surl = "http://" + this.subdomain + "." + location.hostname + "/" + this.dynamicpageaddress + "?id=" + this.MHostId;
143            if (this.persist && this.mode != "stream") surl += "&maxmessages=" + this.maxmessages;
144            surl += "&persist="+this.persist;
145            for (var c in this.channels) {
146                    surl += "&channel="+c;
147                    if (this.channels[c].lastmsgreceived > 0) {
148                            surl += "&restartfrom="+(this.channels[c].lastmsgreceived+1);
149                    } else if (this.channels[c].backtrack > 0) {
150                            surl += "&backtrack="+this.channels[c].backtrack;
151                    } else if (this.channels[c].backtrack < 0 || isNaN(this.channels[c].backtrack)) {
152                            surl += "&restartfrom=";
153                    }
154            }
155            this.subsurl = surl;
156    }
157    
158  Meteor.prototype.createIframe = function(url) {  Meteor.prototype.createIframe = function(url) {
159          if (document.all) {          delete this.transferDoc;
160            if (document.all) try { this.transferDoc = new ActiveXObject("htmlfile") } catch(ex) { this.transferDoc = null }
161            if (document.all && this.transferDoc) {
162                  this.transferDoc = new ActiveXObject("htmlfile");                  this.transferDoc = new ActiveXObject("htmlfile");
163                  this.transferDoc.open();                  this.transferDoc.open();
164                  this.transferDoc.write("<html>");                  this.transferDoc.write("<html>");
# Line 194  Meteor.prototype.stop = function() { Line 204  Meteor.prototype.stop = function() {
204                  document.getElementById("meteorframe_"+this.instID).src="about:blank";                  document.getElementById("meteorframe_"+this.instID).src="about:blank";
205                  document.body.removeChild(document.getElementById("meteorframe_"+this.instID));                  document.body.removeChild(document.getElementById("meteorframe_"+this.instID));
206          }          }
207          if (!isNaN(this.pingtimer)) clearTimeout(this.pingtimer);          clearTimeout(this.pingtimer);
208          if (!isNaN(this.updatepollfreqtimer)) clearTimeout(this.updatepollfreqtimer);          clearTimeout(this.updatepollfreqtimer);
209          if (!isNaN(this.frameloadtimer)) clearTimeout(this.frameloadtimer);          clearTimeout(this.frameloadtimer);
210          this.setstatus(0);          this.setstatus(0);
211  }  }
212    
# Line 223  Meteor.prototype.process = function(id, Line 233  Meteor.prototype.process = function(id,
233                          while (this.recvtimes.length > 5) this.recvtimes.shift();                          while (this.recvtimes.length > 5) this.recvtimes.shift();
234                  }                  }
235          }          }
236            this.updateSubsUrl();
237          this.setstatus(5);          this.setstatus(5);
238  }  }
239    
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