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websocket.js
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websocket.js
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;(function(){
var Gun = require('./root');
Gun.Mesh = require('./mesh');
// TODO: resync upon reconnect online/offline
//window.ononline = window.onoffline = function(){ console.log('online?', navigator.onLine) }
Gun.on('opt', function(root){
this.to.next(root);
if(root.once){ return }
var opt = root.opt;
if(false === opt.WebSocket){ return }
var env = Gun.window || {};
var websocket = opt.WebSocket || env.WebSocket || env.webkitWebSocket || env.mozWebSocket;
if(!websocket){ return }
opt.WebSocket = websocket;
var mesh = opt.mesh = opt.mesh || Gun.Mesh(root);
var wire = mesh.wire || opt.wire;
mesh.wire = opt.wire = open;
function open(peer){ try{
if(!peer || !peer.url){ return wire && wire(peer) }
var url = peer.url.replace(/^http/, 'ws');
var wire = peer.wire = new opt.WebSocket(url);
wire.onclose = function(){
reconnect(peer);
opt.mesh.bye(peer);
};
wire.onerror = function(err){
reconnect(peer);
};
wire.onopen = function(){
opt.mesh.hi(peer);
}
wire.onmessage = function(msg){
if(!msg){ return }
opt.mesh.hear(msg.data || msg, peer);
};
return wire;
}catch(e){ opt.mesh.bye(peer) }}
setTimeout(function(){ !opt.super && root.on('out', {dam:'hi'}) },1); // it can take a while to open a socket, so maybe no longer lazy load for perf reasons?
var wait = 2 * 999;
function reconnect(peer){
clearTimeout(peer.defer);
if(!opt.peers[peer.url]){ return }
if(doc && peer.retry <= 0){ return }
peer.retry = (peer.retry || opt.retry+1 || 60) - ((-peer.tried + (peer.tried = +new Date) < wait*4)?1:0);
peer.defer = setTimeout(function to(){
if(doc && doc.hidden){ return setTimeout(to,wait) }
open(peer);
}, wait);
}
var doc = (''+u !== typeof document) && document;
});
var noop = function(){}, u;
}());