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assets/webapps/system.gaiamobile.org/js/browser_settings.js

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+/* global Service, LazyLoader, IconsHelper */
+(function(exports) {
+  'use strict';
+
+  function BrowserSettings() {
+  }
+
+  // Use a setting in order to be "called" by settings app
+  BrowserSettings.prototype.addRemoteRequestSetting =
+                                    function(key, requestFunction) {
+    function observer(setting) {
+      var isRequested = setting.settingValue;
+      if (!isRequested) {
+        return;
+      }
+
+      requestFunction();
+
+      // Reset the setting value to false
+      var lock = navigator.mozSettings.createLock();
+      var falseSetting = {};
+      falseSetting[key] = false;
+      lock.set(falseSetting);
+    }
+
+    navigator.mozSettings.addObserver(key, observer);
+
+    var getRequest = navigator.mozSettings.createLock().get(key);
+    getRequest.onsuccess = function() {
+      observer({settingName: key, settingValue: getRequest.result[key]});
+    };
+  };
+
+  BrowserSettings.prototype.start = function() {
+    this.addRemoteRequestSetting(
+      'clear.browser.history',
+      function clearHistory() {
+        Service.request('Places:clearHistory');
+      }
+    );
+
+    this.addRemoteRequestSetting(
+      'clear.browser.private-data',
+      function clearPrivateData() {
+        var request = navigator.mozApps.getSelf();
+        request.onsuccess = function() {
+          request.result.clearBrowserData();
+        };
+
+        // Clear the icon dataStore.
+        LazyLoader.load('shared/js/icons_helper.js').then(() => {
+          IconsHelper.clear();
+        });
+      }
+    );
+  };
+
+  exports.BrowserSettings = BrowserSettings;
+})(window);