diff --git a/Wox/MainWindow.xaml b/Wox/MainWindow.xaml
index 7ce73b08ec..361b621d20 100644
--- a/Wox/MainWindow.xaml
+++ b/Wox/MainWindow.xaml
@@ -18,13 +18,12 @@
         Style="{DynamicResource WindowStyle}"
         Icon="Images\app.png"
         AllowsTransparency="True"
-        Visibility="{Binding IsVisible,Converter={converters:VisibilityConverter}}"
+        Visibility="{Binding WindowVisibility}"
         PreviewKeyDown="Window_PreviewKeyDown" d:DataContext="{d:DesignInstance vm:MainViewModel, IsDesignTimeCreatable=True}">
     <Window.Resources>
         <DataTemplate DataType="{x:Type vm:ResultsViewModel}">
             <wox:ResultListBox></wox:ResultListBox>
         </DataTemplate>
-        <converters:VisibilityConverter x:Key="VisibilityConverter" />
     </Window.Resources>
     <Border Style="{DynamicResource WindowBorderStyle}" MouseDown="Border_OnMouseDown">
         <StackPanel Orientation="Vertical">
@@ -32,14 +31,14 @@
                      PreviewDragOver="TbQuery_OnPreviewDragOver" AllowDrop="True"
                      x:Name="tbQuery" />
             <Line Style="{DynamicResource PendingLineStyle}" x:Name="progressBar" Y1="0" Y2="0" X2="100" Height="2" StrokeThickness="1"
-                  Visibility="{Binding IsProgressBarVisible,Converter={StaticResource VisibilityConverter}}">
+                  Visibility="{Binding ProgressBarVisibility}">
                 <Line.ToolTip>
                     <ToolTip IsOpen="{Binding IsProgressBarTooltipVisible}"></ToolTip>
                 </Line.ToolTip>
             </Line>
-            <ContentControl Content="{Binding Results}" Visibility="{Binding IsResultListBoxVisible,Converter={StaticResource VisibilityConverter}}">
+            <ContentControl Content="{Binding Results}" Visibility="{Binding ResultListBoxVisibility}">
             </ContentControl>
-            <ContentControl Content="{Binding ContextMenu}" Visibility="{Binding IsContextMenuVisible,Converter={StaticResource VisibilityConverter}}">
+            <ContentControl Content="{Binding ContextMenu}" Visibility="{Binding ContextMenuVisibility}">
             </ContentControl>
         </StackPanel>
     </Border>
diff --git a/Wox/MainWindow.xaml.cs b/Wox/MainWindow.xaml.cs
index 4430fd6fe9..7757b80ad4 100644
--- a/Wox/MainWindow.xaml.cs
+++ b/Wox/MainWindow.xaml.cs
@@ -16,6 +16,7 @@ using KeyEventArgs = System.Windows.Input.KeyEventArgs;
 using MessageBox = System.Windows.MessageBox;
 using Wox.ViewModel;
 using Wox.Plugin;
+using Wox.Extensions;
 
 namespace Wox
 {
@@ -76,7 +77,7 @@ namespace Wox
                 }
                 else if(eve.PropertyName == "IsVisible")
                 {
-                    if (vm.IsVisible)
+                    if (vm.WindowVisibility.IsVisible())
                     {
                         this.tbQuery.Focus();
                     }
diff --git a/Wox/PublicAPIInstance.cs b/Wox/PublicAPIInstance.cs
index b0c07cd646..85384dc50a 100644
--- a/Wox/PublicAPIInstance.cs
+++ b/Wox/PublicAPIInstance.cs
@@ -18,6 +18,7 @@ using Wox.Helper;
 using Wox.Infrastructure.Hotkey;
 using Wox.Plugin;
 using Wox.ViewModel;
+using Wox.Extensions;
 
 namespace Wox
 {
@@ -127,12 +128,12 @@ namespace Wox
 
         public void StartLoadingBar()
         {
-            this.MainVM.IsProgressBarVisible = true;
+            this.MainVM.ProgressBarVisibility = Visibility.Visible;
         }
 
         public void StopLoadingBar()
         {
-            this.MainVM.IsProgressBarVisible = false;
+            this.MainVM.ProgressBarVisibility = Visibility.Collapsed;
         }
 
         public void InstallPlugin(string path)
@@ -201,13 +202,13 @@ namespace Wox
         {
             UserSettingStorage.Instance.WindowLeft = this.MainVM.Left;
             UserSettingStorage.Instance.WindowTop = this.MainVM.Top;
-            this.MainVM.IsVisible = false;
+            this.MainVM.WindowVisibility = Visibility.Collapsed;
         }
 
         private void ShowWox(bool selectAll = true)
         {
             UserSettingStorage.Instance.IncreaseActivateTimes();
-            this.MainVM.IsVisible = true;
+            this.MainVM.WindowVisibility = Visibility.Visible;
             this.MainVM.SelectAllText = true;
         }
 
@@ -277,7 +278,7 @@ namespace Wox
 
         private void ToggleWox()
         {
-            if (!MainVM.IsVisible)
+            if (MainVM.WindowVisibility.IsNotVisible())
             {
                 ShowWox();
             }
diff --git a/Wox/ViewModel/MainViewModel.cs b/Wox/ViewModel/MainViewModel.cs
index 4acdaeebb7..38d788125e 100644
--- a/Wox/ViewModel/MainViewModel.cs
+++ b/Wox/ViewModel/MainViewModel.cs
@@ -14,6 +14,7 @@ using Wox.Infrastructure;
 using Wox.Infrastructure.Hotkey;
 using Wox.Plugin;
 using Wox.Storage;
+using Wox.Extensions;
 
 namespace Wox.ViewModel
 {
@@ -22,16 +23,18 @@ namespace Wox.ViewModel
         #region Private Fields
 
         private string _queryText;
-        private bool _isVisible;
-        private bool _isResultListBoxVisible;
-        private bool _isContextMenuVisible;
-        private bool _isProgressBarVisible;
+
         private bool _isProgressBarTooltipVisible;
         private bool _selectAllText;
         private int _caretIndex;
         private double _left;
         private double _top;
 
+        private Visibility _contextMenuVisibility;
+        private Visibility _progressBarVisibility;
+        private Visibility _resultListBoxVisibility;
+        private Visibility _windowVisibility;
+
         private bool _queryHasReturn;
         private Query _lastQuery = new Query();
         private bool _ignoreTextChange;
@@ -100,63 +103,6 @@ namespace Wox.ViewModel
             }
         }
 
-        public bool IsVisible
-        {
-            get
-            {
-                return this._isVisible;
-            }
-            set
-            {
-                this._isVisible = value;
-                OnPropertyChanged("IsVisible");
-
-                if (!value && this.IsContextMenuVisible)
-                {
-                    this.BackToSearchMode();
-                }
-            }
-        }
-
-        public bool IsResultListBoxVisible
-        {
-            get
-            {
-                return this._isResultListBoxVisible;
-            }
-            set
-            {
-                this._isResultListBoxVisible = value;
-                OnPropertyChanged("IsResultListBoxVisible");
-            }
-        }
-
-        public bool IsContextMenuVisible
-        {
-            get
-            {
-                return this._isContextMenuVisible;
-            }
-            set
-            {
-                this._isContextMenuVisible = value;
-                OnPropertyChanged("IsContextMenuVisible");
-            }
-        }
-
-        public bool IsProgressBarVisible
-        {
-            get
-            {
-                return this._isProgressBarVisible;
-            }
-            set
-            {
-                this._isProgressBarVisible = value;
-                OnPropertyChanged("IsProgressBarVisible");
-            }
-        }
-
         public bool IsProgressBarTooltipVisible
         {
             get
@@ -196,6 +142,63 @@ namespace Wox.ViewModel
             }
         }
 
+        public Visibility ContextMenuVisibility
+        {
+            get
+            {
+                return this._contextMenuVisibility;
+            }
+            set
+            {
+                this._contextMenuVisibility = value;
+                OnPropertyChanged("ContextMenuVisibility");
+            }
+        }
+
+        public Visibility ProgressBarVisibility
+        {
+            get
+            {
+                return this._progressBarVisibility;
+            }
+            set
+            {
+                this._progressBarVisibility = value;
+                OnPropertyChanged("ProgressBarVisibility");
+            }
+        }
+
+        public Visibility ResultListBoxVisibility
+        {
+            get
+            {
+                return this._resultListBoxVisibility;
+            }
+            set
+            {
+                this._resultListBoxVisibility = value;
+                OnPropertyChanged("ResultListBoxVisibility");
+            }
+        }
+
+        public Visibility WindowVisibility
+        {
+            get
+            {
+                return this._windowVisibility;
+            }
+            set
+            {
+                this._windowVisibility = value;
+                OnPropertyChanged("WindowVisibility");
+
+                if (value.IsNotVisible() && this.ContextMenuVisibility.IsVisible())
+                {
+                    this.BackToSearchMode();
+                }
+            }
+        }
+
         public ICommand EscCommand
         {
             get;
@@ -277,13 +280,13 @@ namespace Wox.ViewModel
             this.EscCommand = new RelayCommand((parameter) =>
             {
 
-                if (this.IsContextMenuVisible)
+                if (this.ContextMenuVisibility.IsVisible())
                 {
                     this.BackToSearchMode();
                 }
                 else
                 {
-                    this.IsVisible = false;
+                    this.WindowVisibility = Visibility.Collapsed;
                 }
 
             });
@@ -291,7 +294,7 @@ namespace Wox.ViewModel
             this.SelectNextItemCommand = new RelayCommand((parameter) =>
             {
 
-                if (this.IsContextMenuVisible)
+                if (this.ContextMenuVisibility.IsVisible())
                 {
                     this.ContextMenu.SelectNextResult();
                 }
@@ -305,7 +308,7 @@ namespace Wox.ViewModel
             this.SelectPrevItemCommand = new RelayCommand((parameter) =>
             {
 
-                if (this.IsContextMenuVisible)
+                if (this.ContextMenuVisibility.IsVisible())
                 {
                     this.ContextMenu.SelectPrevResult();
                 }
@@ -319,7 +322,7 @@ namespace Wox.ViewModel
             this.CtrlOCommand = new RelayCommand((parameter) =>
             {
 
-                if (this.IsContextMenuVisible)
+                if (this.ContextMenuVisibility.IsVisible())
                 {
                     BackToSearchMode();
                 }
@@ -367,7 +370,7 @@ namespace Wox.ViewModel
             this.ShiftEnterCommand = new RelayCommand((parameter) =>
             {
 
-                if (!this.IsContextMenuVisible && null != this.Results.SelectedResult)
+                if (this.ContextMenuVisibility.IsNotVisible() && null != this.Results.SelectedResult)
                 {
                     this.ShowContextMenu(this.Results.SelectedResult.RawResult);
                 }
@@ -402,7 +405,7 @@ namespace Wox.ViewModel
         private void InitializeResultListBox()
         {
             this.Results = new ResultsViewModel();
-            this.IsResultListBoxVisible = false;
+            this.ResultListBoxVisibility = Visibility.Collapsed;
         }
 
         private void ShowContextMenu(Result result)
@@ -433,8 +436,8 @@ namespace Wox.ViewModel
             this.ContextMenu.AddResults(actions, pluginID);
             CurrentContextMenus = actions;
 
-            this.IsContextMenuVisible = true;
-            this.IsResultListBoxVisible = false;
+            this.ContextMenuVisibility = Visibility.Visible;
+            this.ResultListBoxVisibility = Visibility.Collapsed;
 
             this.QueryText = "";
         }
@@ -472,7 +475,7 @@ namespace Wox.ViewModel
         private void InitializeContextMenu()
         {
             this.ContextMenu = new ResultsViewModel();
-            this.IsContextMenuVisible = false;
+            this.ContextMenuVisibility = Visibility.Collapsed;
         }
 
         private void HandleQueryTextUpdated()
@@ -480,7 +483,7 @@ namespace Wox.ViewModel
             if (_ignoreTextChange) { _ignoreTextChange = false; return; }
 
             this.IsProgressBarTooltipVisible = false;
-            if (this.IsContextMenuVisible)
+            if (this.ContextMenuVisibility.IsVisible())
             {
                 QueryContextMenu();
             }
@@ -592,8 +595,8 @@ namespace Wox.ViewModel
         private void BackToSearchMode()
         {
             this.QueryText = _textBeforeEnterContextMenuMode;
-            this.IsContextMenuVisible = false;
-            this.IsResultListBoxVisible = true;
+            this.ContextMenuVisibility = Visibility.Collapsed;
+            this.ResultListBoxVisibility = Visibility.Visible;
             this.CaretIndex = this.QueryText.Length;
         }
 
@@ -652,7 +655,7 @@ namespace Wox.ViewModel
 
             if (list.Count > 0)
             {
-                this.IsResultListBoxVisible = true;
+                this.ResultListBoxVisibility = Visibility.Visible;
             }
         }