/[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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Diff of /googlecode.com/svn/trunk/public_html/meteor.js

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revision 22 by andrew.betts, Mon May 14 15:32:03 2007 UTC revision 30 by andrew.betts, Wed Oct 10 22:24:32 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 90  Meteor.reset = function(ifr) { Line 90  Meteor.reset = function(ifr) {
90          this.instances[instid].reset();          this.instances[instid].reset();
91  }  }
92    
93    window.onunload = function() {
94            for (var i in Meteor.instances) {
95                    if (Meteor.instances[i].transferDoc) delete Meteor.instances[i].transferDoc;
96            }
97    }
98    
99    
100  Meteor.prototype.joinChannel = function(channelname, backtrack) {  Meteor.prototype.joinChannel = function(channelname, backtrack) {
101          if (typeof(this.channels[channelname]) != "undefined") throw "Cannot join channel "+channelname+": already subscribed";          if (typeof(this.channels[channelname]) != "undefined") throw "Cannot join channel "+channelname+": already subscribed";
102          this.channels[channelname] = {backtrack:backtrack, lastmsgreceived:0};          this.channels[channelname] = {backtrack:backtrack, lastmsgreceived:0};
# Line 107  Meteor.prototype.leaveChannel = function Line 114  Meteor.prototype.leaveChannel = function
114  }  }
115    
116  Meteor.prototype.start = function() {  Meteor.prototype.start = function() {
117          this.persist = (this.maxmessages)?1:0;          this.persist = (this.persist)?1:0;
118          this.smartpoll = (this.smartpoll)?1:0;          this.smartpoll = (this.smartpoll)?1:0;
119          this.mode = (this.mode=="stream")?"stream":"poll";          this.mode = (this.mode=="stream")?"stream":"poll";
120          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 122  Meteor.prototype.start = function() {
122          var now = new Date();          var now = new Date();
123          var t = now.getTime();          var t = now.getTime();
124          this.setstatus(1);          this.setstatus(1);
125          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;  
126          if (this.mode=="stream") {          if (this.mode=="stream") {
127                  if (document.all) {                  if (document.all) {
128                          this.createIframe(this.subsurl);                          this.createIframe(this.subsurl);
# Line 139  Meteor.prototype.start = function() { Line 134  Meteor.prototype.start = function() {
134                  this.pingtimer = setTimeout(f, this.pingtimeout);                  this.pingtimer = setTimeout(f, this.pingtimeout);
135    
136          } else {          } else {
137                  this.createIframe("http://"+this.subdomain+"."+location.hostname+"/poll.html");                  this.createIframe("http://"+this.subdomain+"."+location.hostname+"/poll.html?nc="+t);
138                  this.recvtimes[0] = t;                  this.recvtimes[0] = t;
139                  if (this.updatepollfreqtimer) clearTimeout(this.updatepollfreqtimer);                  if (this.updatepollfreqtimer) clearTimeout(this.updatepollfreqtimer);
140                  this.updatepollfreqtimer = setInterval(this.updatepollfreq.bind(this), 2500);                  this.updatepollfreqtimer = setInterval(this.updatepollfreq.bind(this), 2500);
# Line 147  Meteor.prototype.start = function() { Line 142  Meteor.prototype.start = function() {
142          this.lastrequest = t;          this.lastrequest = t;
143  }  }
144    
145    Meteor.prototype.updateSubsUrl = function() {
146    
147            // If streaming or long polling, connection should persist
148            this.persist = (this.mode == "stream" || (this.mode=='poll' && this.maxmessages > 0)) ? 1 : 0;
149            var surl = "http://" + this.subdomain + "." + location.hostname + "/" + this.dynamicpageaddress + "?id=" + this.MHostId;
150            if (this.persist && this.mode != "stream") surl += "&maxmessages=" + this.maxmessages;
151            surl += "&persist="+this.persist;
152            for (var c in this.channels) {
153                    surl += "&channel="+c;
154                    if (this.channels[c].lastmsgreceived > 0) {
155                            surl += "&restartfrom="+(this.channels[c].lastmsgreceived+1);
156                    } else if (this.channels[c].backtrack > 0) {
157                            surl += "&backtrack="+this.channels[c].backtrack;
158                    } else if (this.channels[c].backtrack < 0 || isNaN(this.channels[c].backtrack)) {
159                            surl += "&restartfrom=";
160                    }
161            }
162            this.subsurl = surl;
163    }
164    
165  Meteor.prototype.createIframe = function(url) {  Meteor.prototype.createIframe = function(url) {
166          if (document.all) {          delete this.transferDoc;
167                  this.transferDoc = new ActiveXObject("htmlfile");          if (document.all) try { this.transferDoc = new ActiveXObject("htmlfile") } catch(ex) { this.transferDoc = null }
168            if (document.all && this.transferDoc) {
169                  this.transferDoc.open();                  this.transferDoc.open();
170                  this.transferDoc.write("<html>");                  this.transferDoc.write("<html>");
171                  this.transferDoc.write("<script>document.domain=\""+(document.domain)+"\";</"+"script>");                  this.transferDoc.write("<script>document.domain=\""+(document.domain)+"\";</"+"script>");
# Line 223  Meteor.prototype.process = function(id, Line 239  Meteor.prototype.process = function(id,
239                          while (this.recvtimes.length > 5) this.recvtimes.shift();                          while (this.recvtimes.length > 5) this.recvtimes.shift();
240                  }                  }
241          }          }
242            this.updateSubsUrl();
243          this.setstatus(5);          this.setstatus(5);
244  }  }
245    
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