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gaia/apps/communications/contacts/js/fb/fb_init.js

@@ -0,0 +1,54 @@
+'use strict';
+
+/* global utils */
+
+var fb = window.fb || {};
+var config = window.config || {};
+
+if (typeof fb.init === 'undefined') {
+  (function() {
+    var initialized = false;
+    var initializing = false;
+    var EV_FB_INIT = 'fb_init_initialized';
+
+    fb.isEnabled = false;
+
+    fb.init = function(callback) {
+      if (initialized) {
+        callback();
+        return;
+      }
+
+      if (initializing) {
+        document.addEventListener(EV_FB_INIT, function handler(e) {
+          initializing = false;
+          document.removeEventListener(EV_FB_INIT, handler);
+          callback();
+        });
+        return;
+      }
+
+      initializing = true;
+      utils.config.load('/contacts/config.json').then(
+        function cLoaded(configData) {
+          if (configData.facebookEnabled === true) {
+            fb.isEnabled = true;
+          }
+
+          fb.operationsTimeout = config.operationsTimeout =
+                                                  configData.operationsTimeout;
+          fb.logLevel = configData.logLevel || 'none';
+          fb.syncPeriod = configData.facebookSyncPeriod || 24;
+          fb.testToken = configData.testToken;
+
+          initialized = true;
+
+          document.dispatchEvent(new CustomEvent(EV_FB_INIT));
+
+          callback();
+      }, function loadError(err) {
+          console.error('Error while loading config.json', err);
+      });
+    };
+  })();
+}