diff --git a/app/scripts/controllers/list.js b/app/scripts/controllers/list.js
index 2a059e8..9639fb4 100644
--- a/app/scripts/controllers/list.js
+++ b/app/scripts/controllers/list.js
@@ -1,7 +1,7 @@
 (function () {
     'use strict';
 
-    angular.module('ariaNg').controller('DownloadListController', ['$scope', '$window', '$location', '$interval', 'translateFilter',  'aria2RpcService', 'ariaNgSettingService', 'utils', function ($scope, $window, $location, $interval, translateFilter, aria2RpcService, ariaNgSettingService, utils) {
+    angular.module('ariaNg').controller('DownloadListController', ['$rootScope', '$scope', '$window', '$location', '$interval', 'translateFilter',  'aria2RpcService', 'ariaNgSettingService', 'utils', function ($rootScope, $scope, $window, $location, $interval, translateFilter, aria2RpcService, ariaNgSettingService, utils) {
         var location = $location.path().substring(1);
         var downloadTaskRefreshPromise = null;
         var needRequestWholeInfo = true;
@@ -40,9 +40,9 @@
                 return invokeMethod({
                     params: params,
                     callback: function (result) {
-                        if (!utils.extendArray(result, $scope.taskContext.list, 'gid')) {
+                        if (!utils.extendArray(result, $rootScope.taskContext.list, 'gid')) {
                             if (needRequestWholeInfo) {
-                                $scope.taskContext.list = result;
+                                $rootScope.taskContext.list = result;
                                 needRequestWholeInfo = false;
                             } else {
                                 needRequestWholeInfo = true;
@@ -51,9 +51,9 @@
                             needRequestWholeInfo = false;
                         }
 
-                        if ($scope.taskContext.list && $scope.taskContext.list.length > 0) {
-                            for (var i = 0; i < $scope.taskContext.list.length; i++) {
-                                utils.processDownloadTask($scope.taskContext.list[i]);
+                        if ($rootScope.taskContext.list && $rootScope.taskContext.list.length > 0) {
+                            for (var i = 0; i < $rootScope.taskContext.list.length; i++) {
+                                utils.processDownloadTask($rootScope.taskContext.list[i]);
                             }
                         }
                     }
@@ -68,11 +68,11 @@
                 return false;
             }
 
-            if (!$scope.searchContext || !$scope.searchContext.text) {
+            if (!$rootScope.searchContext || !$rootScope.searchContext.text) {
                 return true;
             }
 
-            return (task.taskName.toLowerCase().indexOf($scope.searchContext.text.toLowerCase()) >= 0);
+            return (task.taskName.toLowerCase().indexOf($rootScope.searchContext.text.toLowerCase()) >= 0);
         };
 
         $scope.getOrderType = function () {
diff --git a/app/scripts/controllers/main.js b/app/scripts/controllers/main.js
index 7ccfe43..0bbaf8a 100644
--- a/app/scripts/controllers/main.js
+++ b/app/scripts/controllers/main.js
@@ -1,7 +1,7 @@
 (function () {
     'use strict';
 
-    angular.module('ariaNg').controller('MainController', ['$scope', '$interval', 'aria2RpcService', 'ariaNgSettingService', 'utils', function ($scope, $interval, aria2RpcService, ariaNgSettingService, utils) {
+    angular.module('ariaNg').controller('MainController', ['$rootScope', '$scope', '$interval', 'aria2RpcService', 'ariaNgSettingService', 'utils', function ($rootScope, $scope, $interval, aria2RpcService, ariaNgSettingService, utils) {
         var globalStatRefreshPromise = null;
 
         var processStatResult = function (stat) {
@@ -26,57 +26,12 @@
 
         refreshGlobalStat();
 
-        $scope.searchContext = {
-            text: ''
-        };
-
-        $scope.taskContext = {
-            list: [],
-            selected: {}
-        };
-
         $scope.isTaskSelected = function () {
-            var allTasks = $scope.taskContext.list;
-
-            if (!allTasks || allTasks.length < 1) {
-                return false;
-            }
-
-            var selectedTasks = $scope.taskContext.selected;
-
-            for (var i = 0; i < allTasks.length; i++) {
-                var task = allTasks[i];
-                if (selectedTasks[task.gid]) {
-                    return true;
-                }
-            }
-
-            return false;
+            return $rootScope.taskContext.getSelectedTaskIds().length > 0;
         };
 
         $scope.selectAllTasks = function () {
-            var allTasks = $scope.taskContext.list;
-
-            if (!allTasks || allTasks.length < 1) {
-                return;
-            }
-
-            var selectedTasks = $scope.taskContext.selected;
-            var isAllSelected = true;
-
-            for (var i = 0; i < allTasks.length; i++) {
-                var task = allTasks[i];
-
-                if (!selectedTasks[task.gid]) {
-                    isAllSelected = false;
-                    break;
-                }
-            }
-
-            for (var i = 0; i < allTasks.length; i++) {
-                var task = allTasks[i];
-                selectedTasks[task.gid] = !isAllSelected;
-            }
+            $rootScope.taskContext.selectAll();
         };
 
         $scope.changeDisplayOrder = function (type, autoSetReverse) {
diff --git a/app/scripts/core/config.js b/app/scripts/core/config.js
index c43b250..a24f1f7 100644
--- a/app/scripts/core/config.js
+++ b/app/scripts/core/config.js
@@ -54,6 +54,53 @@
             return angular.element('body').hasClass('sidebar-open');
         };
 
+        $rootScope.searchContext = {
+            text: ''
+        };
+
+        $rootScope.taskContext = {
+            list: [],
+            selected: {},
+            getSelectedTaskIds: function () {
+                var result = [];
+
+                if (!this.list || !this.selected || this.list.length < 1) {
+                    return result;
+                }
+
+                for (var i = 0; i < this.list.length; i++) {
+                    var task = this.list[i];
+
+                    if (this.selected[task.gid]) {
+                        result.push(task.gid);
+                    }
+                }
+
+                return result;
+            },
+            selectAll: function () {
+                if (!this.list || !this.selected || this.list.length < 1) {
+                    return result;
+                }
+
+                var isAllSelected = true;
+
+                for (var i = 0; i < this.list.length; i++) {
+                    var task = this.list[i];
+
+                    if (!this.selected[task.gid]) {
+                        isAllSelected = false;
+                        break;
+                    }
+                }
+
+                for (var i = 0; i < this.list.length; i++) {
+                    var task = this.list[i];
+                    this.selected[task.gid] = !isAllSelected;
+                }
+            }
+        };
+
         $rootScope.swipeActions = {
             leftSwipe: function () {
                 if (isSidebarShowInSmallScreen()) {
@@ -78,6 +125,12 @@
             delete $rootScope.swipeActions.extentLeftSwipe;
             delete $rootScope.swipeActions.extentRightSwipe;
 
+            if (angular.isArray($rootScope.taskContext.list) && $rootScope.taskContext.list.length > 0) {
+                $rootScope.taskContext.list.length = 0;
+            }
+
+            console.log($rootScope.taskContext.list);
+
             SweetAlert.close();
         });