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observer.js
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observer.js
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"use strict";
var Observer = function() {
this.subscriber = [];
};
Observer.prototype.subscribe = function(who,title, ipc_name) {
//console.log(title+' subscribe!');
// if(process.type !== 'renderer')
// return;
if (!this.subscriber[title]) {
this.subscriber[title] = [];
}
// var who = require('electron').remote.getCurrentWebContents();
for(var i = 0; i < this.subscriber[title].length; i++) {
var o = this.subscriber[title][i];
if (o.webInstance == who && o.channel == ipc_name) {
return;
}
}
this.subscriber[title].push({webInstance: who, channel: ipc_name });
};
Observer.prototype.unsubscribe = function(who,title) {
if (!this.subscriber[title]) return;
for(var i = 0; i < this.subscriber[title].length; i++) {
var o = this.subscriber[title][i];
if (o.webInstance == who) {
this.subscriber[title].splice(i, 1);
return;
}
}
};
Observer.prototype._unsubscribeAll = function(who) {
for (var title in this.subscriber) {
if (!this.subscriber[title]) continue;
for (var i = 0; i < this.subscriber[title].length; i++) {
var o = this.subscriber[title][i];
if (o.webInstance == who) {
this.subscriber[title].splice(i, 1);
continue;
}
}
// console.log('unsubscribeAll '+this.subscriber[title].length);
}
};
Observer.prototype._send = function(title, data) {
if (!this.subscriber[title]) return;
for(var i = 0; i < this.subscriber[title].length; i++) {
var o = this.subscriber[title][i];
try{
o.webInstance.send(o.channel, data);
}
catch(e)
{
console.error(e.message);
}
}
};
module.exports = new Observer();