/[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 17 by andrew.betts, Mon Apr 30 18:38:55 2007 UTC revision 18 by andrew.betts, Wed May 2 10:55:26 2007 UTC
# Line 19  Function.prototype.andThen=function(g) { Line 19  Function.prototype.andThen=function(g) {
19    
20  function Meteor(instID) {  function Meteor(instID) {
21    
         this.lastmsgreceived = -1;  
22          this.transferDoc = false;          this.transferDoc = false;
23          this.pingtimer = false;          this.pingtimer = false;
24          this.updatepollfreqtimer = false;          this.updatepollfreqtimer = false;
# Line 33  function Meteor(instID) { Line 32  function Meteor(instID) {
32          this.callback_statuschanged = function() {};          this.callback_statuschanged = function() {};
33          this.persist = true;          this.persist = true;
34          this.frameloadtimer = false;          this.frameloadtimer = false;
         this.frameurl = false;  
35          this.debugmode = false;          this.debugmode = false;
36            this.subsurl = false;
37    
38          // Documented public properties          // Documented public properties
39          this.channel = false;          this.channels = new Array();
40          this.subdomain = "data";          this.subdomain = "data";
41          this.dynamicpageaddress = "push";          this.dynamicpageaddress = "push";
         this.backtrack = 0;  
42          this.smartpoll = true;          this.smartpoll = true;
43          this.pollfreq = 2000;          this.pollfreq = 2000;
44          this.minpollfreq = 2000;          this.minpollfreq = 2000;
45          this.mode = "poll";          this.mode = "poll";
46          this.polltimeout=30000;          this.polltimeout=30000;
         this.maxmessages=0;  
47          this.pingtimeout = 10000;          this.pingtimeout = 10000;
48            this.maxmessages = 0;
49          this.status = 0;          this.status = 0;
50    
51          /* Statuses:    0 = Uninitialised,          /* Statuses:    0 = Uninitialised,
# Line 83  Meteor.register = function(ifr) { Line 81  Meteor.register = function(ifr) {
81          if (this.debugmode) console.log("Frame registered");          if (this.debugmode) console.log("Frame registered");
82  }  }
83    
84    Meteor.reset = function(ifr) {
85            instid = new String(ifr.window.frameElement.id);
86            instid = instid.replace(/.*_([0-9]*)$/, "$1");
87            this.instances[instid].reset();
88    }
89    
90    Meteor.prototype.joinChannel = function(channelname, backtrack) {
91            if (typeof(this.channels[channelname]) != "undefined") throw "Cannot join channel "+channelname+": already subscribed";
92            this.channels[channelname] = {backtrack:backtrack, lastmsgreceived:0};
93            if (this.status != 0) this.start();
94    }
95    
96    Meteor.prototype.leaveChannel = function(channelname) {
97            if (typeof(this.channels[channelname]) == "undefined") throw "Cannot leave channel "+channelname+": not subscribed";
98            delete this.channels[channelname];
99            if (this.status != 0) this.start();
100    }
101    
102  Meteor.prototype.start = function() {  Meteor.prototype.start = function() {
103          this.persist = (this.maxmessages)?1:0;          this.persist = (this.maxmessages)?1:0;
104          this.smartpoll = (this.smartpoll)?1:0;          this.smartpoll = (this.smartpoll)?1:0;
105          this.mode = (this.mode=="stream")?"stream":"poll";          this.mode = (this.mode=="stream")?"stream":"poll";
106          if (!this.subdomain || !this.channel) throw "Channel or Meteor subdomain host not specified";          if (!this.subdomain || this.channels.length) throw "Channel or Meteor subdomain host not specified";
107          this.stop();          this.stop();
108          var now = new Date();          var now = new Date();
109          var t = now.getTime();          var t = now.getTime();
110          this.setstatus(1);          this.setstatus(1);
111          if (this.mode=="stream") {          var surl = "http://" + this.subdomain + "." + location.hostname + "/" + this.dynamicpageaddress + "?id=" + this.MHostId;
112                  var surl = "http://"+this.subdomain+"."+location.hostname+"/"+this.dynamicpageaddress+"?channel="+this.channel+"&id="+this.MHostId;          if (this.maxmessages && !this.persist) surl += "&maxmessages=" + this.maxmessages;
113                  if (this.lastmsgreceived >= 0) {          for (var c in this.channels) {
114                          surl += "&restartfrom="+this.lastmsgreceived;                  surl += "&channel="+c;
115                  } else if (this.backtrack > 0) {                  if (this.channels[c].lastmsgreceived >= 0) {
116                          surl += "&backtrack="+this.backtrack;                          surl += "&restartfrom="+this.channels[c].lastmsgreceived;
117                  } else if (this.backtrack < 0 || isNaN(this.backtrack)) {                  } else if (this.channels[c].backtrack > 0) {
118                            surl += "&backtrack="+this.channels[c].backtrack;
119                    } else if (this.channels[c].backtrack < 0 || isNaN(this.channels[c].backtrack)) {
120                          surl += "&restartfrom=";                          surl += "&restartfrom=";
121                  }                  }
122                  this.createIframe(surl);          }
123            this.subsurl = surl;
124            if (this.mode=="stream") {
125                    this.createIframe(this.subsurl);
126                  var f = this.pollmode.bind(this);                  var f = this.pollmode.bind(this);
127                  clearTimeout(this.pingtimer);                  clearTimeout(this.pingtimer);
128                  this.pingtimer = setTimeout(f, this.pingtimeout);                  this.pingtimer = setTimeout(f, this.pingtimeout);
# Line 166  Meteor.prototype.stop = function() { Line 187  Meteor.prototype.stop = function() {
187    
188  Meteor.prototype.pollmode = function() {  Meteor.prototype.pollmode = function() {
189          if (this.debugmode) console.log("Ping timeout");          if (this.debugmode) console.log("Ping timeout");
         this.stop();  
190          this.mode="poll";          this.mode="poll";
191          this.start();          this.start();
192          this.callback_changemode("poll");          this.callback_changemode("poll");
193          this.lastpingtime = false;          this.lastpingtime = false;
194  }  }
195    
196  Meteor.prototype.process = function(id, data, timestamp) {  Meteor.prototype.process = function(id, channel, data) {
197          if (id > this.lastmsgreceived) {          if (id > this.channels[channel].lastmsgreceived) {
198                  this.callback_process(data, timestamp);                  if (this.debugmode) console.log("Message "+id+" received on channel "+channel+": "+data);
199                  if (id != -1) this.lastmsgreceived = id;                  this.callback_process(data);
200                    this.channels[channel].lastmsgreceived = id;
201                  if (this.mode=="poll") {                  if (this.mode=="poll") {
202                          var now = new Date();                          var now = new Date();
203                          var t = now.getTime();                          var t = now.getTime();
# Line 184  Meteor.prototype.process = function(id, Line 205  Meteor.prototype.process = function(id,
205                          while (this.recvtimes.length > 5) this.recvtimes.shift();                          while (this.recvtimes.length > 5) this.recvtimes.shift();
206                  }                  }
207          } else if (id == -1) {          } else if (id == -1) {
208                    if (this.debugmode) console.log("Ping");
209                  this.ping();                  this.ping();
210          }          }
211          this.setstatus(5);          this.setstatus(5);

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