Fix issue #56: Support Filer in node.js as an fs alternative

lib/intercom.js

@@ -31,7 +31,8 @@ define(function(require) {
   }
 
   var localStorage = (function(window) {
-    if (typeof window.localStorage === 'undefined') {
+    if (typeof window === 'undefined' ||
+        typeof window.localStorage === 'undefined') {
       return {
         getItem : function() {},
         setItem : function() {},
@@ -53,6 +54,12 @@ define(function(require) {
     var storageHandler = function() {
       self._onStorageEvent.apply(self, arguments);
     };
+
+    // If we're in node.js, skip event registration
+    if (typeof window === 'undefined' || typeof document === 'undefined') {
+      return;
+    }
+
     if (document.attachEvent) {
       document.attachEvent('onstorage', storageHandler);
     } else {
@@ -80,7 +87,7 @@ define(function(require) {
           self._on('storage', lock);
           listening = true;
         }
-        waitTimer = window.setTimeout(lock, WAIT);
+        waitTimer = setTimeout(lock, WAIT);
         return;
       }
       executed = true;
@@ -95,7 +102,7 @@ define(function(require) {
         self._off('storage', lock);
       }
       if (waitTimer) {
-        window.clearTimeout(waitTimer);
+        clearTimeout(waitTimer);
       }
       localStorage.removeItem(INDEX_LOCK);
     }
@@ -240,7 +247,7 @@ define(function(require) {
       localStorage.setItem(INDEX_EMIT, data);
       self.trigger(name, message);
 
-      window.setTimeout(function() {
+      setTimeout(function() {
         self._cleanup_emit();
       }, 50);
     });
@@ -277,7 +284,7 @@ define(function(require) {
       localStorage.setItem(INDEX_ONCE, JSON.stringify(data));
       fn();
 
-      window.setTimeout(function() {
+      setTimeout(function() {
         self._cleanup_once();
       }, 50);
     });

src/providers/indexeddb.js

@@ -2,10 +2,12 @@ define(function(require) {
   var FILE_SYSTEM_NAME = require('src/constants').FILE_SYSTEM_NAME;
   var FILE_STORE_NAME = require('src/constants').FILE_STORE_NAME;
 
-  var indexedDB = window.indexedDB       ||
-                  window.mozIndexedDB    ||
-                  window.webkitIndexedDB ||
-                  window.msIndexedDB;
+  var indexedDB = (function(window) {
+    return window.indexedDB       ||
+           window.mozIndexedDB    ||
+           window.webkitIndexedDB ||
+           window.msIndexedDB;
+  }(this));
 
   var IDB_RW = require('src/constants').IDB_RW;
   var IDB_RO = require('src/constants').IDB_RO;

src/providers/websql.js

@@ -98,7 +98,7 @@ define(function(require) {
     this.db = null;
   }
   WebSQL.isSupported = function() {
-    return !!window.openDatabase;
+    return typeof window === 'undefined' ? false : !!window.openDatabase;
   };
 
   WebSQL.prototype.open = function(callback) {