Merge pull request #339 from prey/location-callbacks

Location callbacks handling

lib/agent/triggers/location/index.js

@@ -6,7 +6,7 @@ var join      = require('path').join,
     Emitter   = require('events').EventEmitter;
 
 var emitter,
-    loc_callback,
+    loc_callbacks = [],
     current   = {},
     checking  = false;
 
@@ -29,17 +29,24 @@ var trigger_event = function(type, new_location) {
 }
 
 var fetch_location = function(type, callback) {
-  if (callback) loc_callback = callback;
+  if (callback) loc_callbacks.push(callback);
   if (checking) return;
 
   var done = function(err, coords) {
-    if (loc_callback) {
-      loc_callback(null, coords);
+    if (loc_callbacks.length >= 1) {
+      fire_callbacks(err, coords);
     }
-    loc_callback = null;
+    loc_callbacks = [];
     checking = false;
   }
 
+  var fire_callbacks = function(err, coords) {
+    var list = loc_callbacks;
+    list.forEach(function(fn) {
+      fn(err, coords);
+    });
+  }
+
   checking = true;
   geo.fetch_location(function(err, coords) {
     if (err || !coords || !emitter)
@@ -63,7 +70,10 @@ exports.start = function(opts, cb) {
     else fetch_location(callback);
   });
 
-  fetch_location('client-start');
+  // Give some time to get initial providers before ask for location
+  setTimeout(function() {
+    fetch_location('client-start');
+  }, 2000)
 
   emitter = new Emitter();
   cb(null, emitter);