bwc

src/js/services/localStorage.js

@@ -0,0 +1,92 @@
+'use strict';
+
+angular.module('copayApp.services')
+  .factory('localStorageService', function() {
+
+    var isChromeApp = typeof window !== "undefined" && window.chrome && chrome.runtime && chrome.runtime.id;
+    var root = {};
+
+    var ls = ((typeof localStorage !== "undefined") ? localStorage : null);
+
+    if (isChromeApp && !ls) {
+      ls = localStorage = chrome.storage.local;
+      window.localStorage = chrome.storage.local;
+    }
+
+    if (!ls)
+      throw new Error('localstorage not available, cannot run plugin');
+
+    root.init = function() {};
+
+    root.get = function(k, cb) {
+      if (isChromeApp) {
+        chrome.storage.local.get(k,
+          function(data) {
+            //TODO check for errors
+            return cb(null, data[k]);
+          });
+      } else {
+        return cb(null, ls.getItem(k));
+      }
+    };
+
+    /**
+     * Same as setItem, but fails if an item already exists
+     */
+    root.create = function(name, value, callback) {
+      root.get(name,
+        function(err, data) {
+          if (data) {
+            return callback('EEXISTS');
+          } else {
+            return root.set(name, value, callback);
+          }
+        });
+    };
+
+    root.set = function(k, v, cb) {
+      if (isChromeApp) {
+        var obj = {};
+        obj[k] = v;
+
+        chrome.storage.local.set(obj, cb);
+      } else {
+        ls.setItem(k, v);
+        return cb();
+      }
+
+    };
+
+    root.remove = function(k, cb) {
+      if (isChromeApp) {
+        chrome.storage.local.remove(k, cb);
+      } else {
+        ls.removeItem(k);
+        return cb();
+      }
+
+    };
+
+    root.clear = function(cb) {
+      // NOP
+      return cb();
+    };
+
+    root.list = function(cb) {
+      if (isChromeApp) {
+        chrome.storage.local.get(null, function(items) {
+          return cb(null, lodash.keys(items));
+        });
+      } else {
+        var ret = [];
+        var l = ls.length;
+
+        for (var i = 0; i < l; i++)
+          ret.push(ls.key(i));
+
+        return cb(null, ret);
+      }
+    };
+
+    return root;
+  });