1 files changed, 68 insertions, 0 deletions
diff --git a/src/js/firefox/lib/storage-wrapper.js b/src/js/firefox/lib/storage-wrapper.js
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+++ b/src/js/firefox/lib/storage-wrapper.js
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+/*
+ * Module     : firefox/storage.js
+ * Copyright  : (c) 2011-2012, Galois, Inc.
+ *
+ * Maintainer :
+ * Stability  : Provisional
+ * Portability: Not Portable (Firefox only)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+const ss = require('simple-storage');
+
+var fiveui = { firefox : {} };
+
+/**
+ * A wraper around the Firefox Simple-Storage API to match the w3c Storage interface:
+ * http://dev.w3.org/html5/webstorage/#storage-0
+ */
+fiveui.firefox.StorageWrapper = function() {
+  this.__defineGetter__('length',
+    function(){
+      return Object.keys(ss.storage).length;
+    });
+};
+
+fiveui.firefox.StorageWrapper.prototype.key = function(idx) {
+  return Object.keys(ss.storage)[idx];
+};
+
+fiveui.firefox.StorageWrapper.prototype.getItem = function(key) {
+  return ss.storage[key];
+};
+
+fiveui.firefox.StorageWrapper.prototype.setItem = function(key, value) {
+  ss.storage[key] = value;
+};
+
+fiveui.firefox.StorageWrapper.prototype.removeItem = function(key) {
+  var keys = Object.keys(ss.storage);
+  for(var i=0; i<keys.length; ++i) {
+    if(keys[i] == key) {
+      keys.splice(i,1);
+      delete ss.storage[key];
+      return;
+    }
+  }
+};
+
+fiveui.firefox.StorageWrapper.prototype.clear = function() {
+  var keys = Object.keys(ss.storage);
+  for(var i=0; i<keys.length; ++i) {
+    delete ss.storage[keys[i]];
+  }
+};
+
+exports.StorageWrapper = fiveui.firefox.StorageWrapper;