Implemented async saving and loading

Filtration.Interface/IDocument.cs

@@ -1,9 +1,11 @@
-namespace Filtration.Interface
+using System.Threading.Tasks;
+
+namespace Filtration.Interface
 {
     public interface IDocument
     {
         bool IsScript { get; }
         bool IsTheme { get; }
-        void Close();
+        Task Close();
     }
 }

Filtration.Interface/IEditableDocument.cs

@@ -1,9 +1,11 @@
-namespace Filtration.Interface
+using System.Threading.Tasks;
+
+namespace Filtration.Interface
 {
     public interface IEditableDocument : IDocument
     {
         bool IsDirty { get; }
-        void Save();
+        Task SaveAsync();
-        void SaveAs();
+        Task SaveAsAsync();
     }
 }

Filtration.Tests/Repositories/TestItemFilterScriptRepository.cs

@@ -18,7 +18,7 @@ namespace Filtration.Tests.Repositories
             
 
             var mockPersistenceService = new Mock<IItemFilterPersistenceService>();
-            mockPersistenceService.Setup(p => p.LoadItemFilterScript(testInputPath)).Verifiable();
+            mockPersistenceService.Setup(p => p.LoadItemFilterScriptAsync(testInputPath)).Verifiable();
             
             var mockItemFilterScriptViewModel = new Mock<IItemFilterScriptViewModel>();
             
@@ -28,7 +28,7 @@ namespace Filtration.Tests.Repositories
             var repository = new ItemFilterScriptRepository(mockPersistenceService.Object, mockItemFilterScriptViewModelFactory.Object);
 
             // Act
-            var result = repository.LoadScriptFromFile(testInputPath);
+            var result = repository.LoadScriptFromFileAsync(testInputPath);
 
             // Assert
             mockPersistenceService.Verify();
@@ -42,7 +42,7 @@ namespace Filtration.Tests.Repositories
             var testInputPath = "C:\\TestPath.filter";
 
             var mockPersistenceService = new Mock<IItemFilterPersistenceService>();
-            mockPersistenceService.Setup(p => p.LoadItemFilterScript(testInputPath)).Throws<IOException>();
+            mockPersistenceService.Setup(p => p.LoadItemFilterScriptAsync(testInputPath)).Throws<IOException>();
 
             var mockItemFilterScriptViewModelFactory = new Mock<IItemFilterScriptViewModelFactory>();
 
@@ -51,7 +51,7 @@ namespace Filtration.Tests.Repositories
             // Act
             
             // Assert
-            Assert.Throws<IOException>(() => repository.LoadScriptFromFile(testInputPath));
+            Assert.Throws<IOException>(() => repository.LoadScriptFromFileAsync(testInputPath));
         }
 
         [Test]

Filtration.Tests/Services/TestItemFilterPersistenceService.cs

@@ -28,7 +28,7 @@ namespace Filtration.Tests.Services
             var service = new ItemFilterPersistenceService(mockFileSystemService.Object, mockItemFilterScriptTranslator.Object);
 
             // Act
-            var script = service.LoadItemFilterScript(TestInputPath);
+            var script = service.LoadItemFilterScriptAsync(TestInputPath);
 
             // Assert
             mockFileSystemService.Verify();
@@ -53,7 +53,7 @@ namespace Filtration.Tests.Services
             var service = new ItemFilterPersistenceService(mockFileSystemService.Object, mockItemFilterScriptTranslator.Object);
 
             // Act
-            service.SaveItemFilterScript(testScript);
+            service.SaveItemFilterScriptAsync(testScript);
 
             // Assert
             mockFileSystemService.Verify();

Filtration.ThemeEditor/Providers/ThemeProvider.cs

@@ -1,6 +1,7 @@
 using System.Collections.ObjectModel;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using AutoMapper;
 using Filtration.ObjectModel;
 using Filtration.ObjectModel.ThemeEditor;
@@ -13,9 +14,9 @@ namespace Filtration.ThemeEditor.Providers
     {
         IThemeEditorViewModel NewThemeForScript(ItemFilterScript script);
         IThemeEditorViewModel MasterThemeForScript(ItemFilterScript script);
-        IThemeEditorViewModel LoadThemeFromFile(string filePath);
+        Task<IThemeEditorViewModel> LoadThemeFromFile(string filePath);
-        Theme LoadThemeModelFromFile(string filePath);
+        Task<Theme> LoadThemeModelFromFile(string filePath);
-        void SaveTheme(IThemeEditorViewModel themeEditorViewModel, string filePath);
+        Task SaveThemeAsync(IThemeEditorViewModel themeEditorViewModel, string filePath);
     }
 
     internal class ThemeProvider : IThemeProvider
@@ -54,23 +55,26 @@ namespace Filtration.ThemeEditor.Providers
             return themeViewModel;
         }
 
-        public IThemeEditorViewModel LoadThemeFromFile(string filePath)
+        public async Task<IThemeEditorViewModel> LoadThemeFromFile(string filePath)
         {
-            var model = _themePersistenceService.LoadTheme(filePath);
+            var model = await _themePersistenceService.LoadThemeAsync(filePath);
             var viewModel = Mapper.Map<IThemeEditorViewModel>(model);
             viewModel.FilePath = filePath;
             return viewModel;
         }
 
-        public Theme LoadThemeModelFromFile(string filePath)
+        public async Task<Theme> LoadThemeModelFromFile(string filePath)
         {
-            return _themePersistenceService.LoadTheme(filePath);
+            return await _themePersistenceService.LoadThemeAsync(filePath);
         }
 
-        public void SaveTheme(IThemeEditorViewModel themeEditorViewModel, string filePath)
+        public async Task SaveThemeAsync(IThemeEditorViewModel themeEditorViewModel, string filePath)
         {
-            var theme = Mapper.Map<Theme>(themeEditorViewModel);
+            await Task.Run(() =>
-            _themePersistenceService.SaveTheme(theme, filePath);
+            {
+                var theme = Mapper.Map<Theme>(themeEditorViewModel);
+                _themePersistenceService.SaveThemeAsync(theme, filePath);
+            });
         }
     }
 }

Filtration.ThemeEditor/Services/ThemePersistenceService.cs

@@ -1,4 +1,5 @@
 using System.IO;
+using System.Threading.Tasks;
 using System.Xml.Serialization;
 using Filtration.ObjectModel.ThemeEditor;
 
@@ -6,35 +7,42 @@ namespace Filtration.ThemeEditor.Services
 {
     internal interface IThemePersistenceService
     {
-        Theme LoadTheme(string filePath);
+        Task<Theme> LoadThemeAsync(string filePath);
-        void SaveTheme(Theme theme, string filePath);
+        Task SaveThemeAsync(Theme theme, string filePath);
     }
 
     internal class ThemePersistenceService : IThemePersistenceService
     {
-        public Theme LoadTheme(string filePath)
+        public async Task<Theme> LoadThemeAsync(string filePath)
         {
-            var xmlSerializer = new XmlSerializer(typeof(Theme));
+            Theme loadedTheme = null;
 
-            Theme loadedTheme;
+            await Task.Run(() =>
-
-            using (Stream reader = new FileStream(filePath, FileMode.Open))
             {
-                loadedTheme = (Theme)xmlSerializer.Deserialize(reader);
+                var xmlSerializer = new XmlSerializer(typeof (Theme));
-            }
+
+                using (Stream reader = new FileStream(filePath, FileMode.Open))
+                {
+                    loadedTheme = (Theme) xmlSerializer.Deserialize(reader);
+                }
+
+                loadedTheme.FilePath = filePath;
+            });
 
-            loadedTheme.FilePath = filePath;
             return loadedTheme;
         }
 
-        public void SaveTheme(Theme theme, string filePath)
+        public async Task SaveThemeAsync(Theme theme, string filePath)
         {
-            var xmlSerializer = new XmlSerializer(typeof(Theme));
+            await Task.Run(() =>
-
-            using (Stream writer = new FileStream(filePath, FileMode.Create))
             {
-                xmlSerializer.Serialize(writer, theme);
+                var xmlSerializer = new XmlSerializer(typeof (Theme));
-            }
+
+                using (Stream writer = new FileStream(filePath, FileMode.Create))
+                {
+                    xmlSerializer.Serialize(writer, theme);
+                }
+            });
         }
     }
 }

Filtration.ThemeEditor/ViewModels/ThemeEditorViewModel.cs

@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Forms;
 using System.Windows.Media;
@@ -55,7 +56,7 @@ namespace Filtration.ThemeEditor.ViewModels
             AddThemeComponentCommand = new RelayCommand<ThemeComponentType>(OnAddThemeComponentCommand, t => IsMasterTheme);
             DeleteThemeComponentCommand = new RelayCommand<ThemeComponent>(OnDeleteThemeComponentCommand,
                 t => IsMasterTheme && SelectedThemeComponent != null);
-            CloseCommand = new RelayCommand(OnCloseCommand);
+            CloseCommand = new RelayCommand(async () => await OnCloseCommand());
 
             var icon = new BitmapImage();
             icon.BeginInit();
@@ -123,19 +124,19 @@ namespace Filtration.ThemeEditor.ViewModels
             }
         }
 
-        public void Save()
+        public async Task SaveAsync()
         {
             if (IsMasterTheme) return;
 
             if (_filenameIsFake)
             {
-                SaveAs();
+                await SaveAsAsync();
                 return;
             }
 
             try
             {
-                _themeProvider.SaveTheme(this, FilePath);
+                await _themeProvider.SaveThemeAsync(this, FilePath);
                 //RemoveDirtyFlag();
             }
             catch (Exception e)
@@ -149,7 +150,7 @@ namespace Filtration.ThemeEditor.ViewModels
             }
         }
 
-        public void SaveAs()
+        public async Task SaveAsAsync()
         {
             if (IsMasterTheme) return;
 
@@ -167,7 +168,7 @@ namespace Filtration.ThemeEditor.ViewModels
             try
             {
                 FilePath = saveDialog.FileName;
-                _themeProvider.SaveTheme(this, FilePath);
+                await _themeProvider.SaveThemeAsync(this, FilePath);
                 _filenameIsFake = false;
                 Title = Filename;
                 //RemoveDirtyFlag();
@@ -185,14 +186,16 @@ namespace Filtration.ThemeEditor.ViewModels
             }
         }
 
-        public void OnCloseCommand()
+        public async Task OnCloseCommand()
         {
-            Close();
+            await Close();
         }
 
-        public void Close()
+#pragma warning disable 1998
+        public async Task Close()
+#pragma warning restore 1998
         {
-            Messenger.Default.Send(new ThemeClosedMessage { ClosedViewModel = this });
+           Messenger.Default.Send(new ThemeClosedMessage {ClosedViewModel = this});
         }
         
         private void OnAddThemeComponentCommand(ThemeComponentType themeComponentType)

Filtration/App.xaml.cs

@@ -17,7 +17,7 @@ using NLog;
 
 namespace Filtration
 {
-    public partial class App : Application 
+    public partial class App
     {
         private IWindsorContainer _container;
         private static readonly Logger _logger = LogManager.GetCurrentClassLogger();

Filtration/Filtration.csproj

@@ -94,6 +94,10 @@
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="WpfAnimatedGif, Version=1.4.13.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\WpfAnimatedGif.1.4.13\lib\net\WpfAnimatedGif.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="WPFToolkit, Version=3.5.40128.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\WPFToolkit.3.5.50211.1\lib\WPFToolkit.dll</HintPath>
@@ -365,6 +369,7 @@
       <DependentUpon>Settings.settings</DependentUpon>
       <DesignTimeSharedInput>True</DesignTimeSharedInput>
     </Compile>
+    <Resource Include="Resources\loading_spinner.gif" />
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>

Filtration/Repositories/ItemFilterScriptRepository.cs

@@ -1,4 +1,5 @@
-using Filtration.ObjectModel;
+using System.Threading.Tasks;
+using Filtration.ObjectModel;
 using Filtration.Services;
 using Filtration.ViewModels;
 
@@ -6,7 +7,7 @@ namespace Filtration.Repositories
 {
     internal interface IItemFilterScriptRepository
     {
-        IItemFilterScriptViewModel LoadScriptFromFile(string path);
+        Task<IItemFilterScriptViewModel> LoadScriptFromFileAsync(string path);
         IItemFilterScriptViewModel NewScript();
         string GetItemFilterScriptDirectory();
         void SetItemFilterScriptDirectory(string path);
@@ -24,9 +25,9 @@ namespace Filtration.Repositories
             _itemFilterScriptViewModelFactory = itemFilterScriptViewModelFactory;
         }
 
-        public IItemFilterScriptViewModel LoadScriptFromFile(string path)
+        public async Task<IItemFilterScriptViewModel> LoadScriptFromFileAsync(string path)
         {
-            var loadedScript = _itemFilterPersistenceService.LoadItemFilterScript(path);
+            var loadedScript = await _itemFilterPersistenceService.LoadItemFilterScriptAsync(path);
 
             var newViewModel = _itemFilterScriptViewModelFactory.Create();
             newViewModel.Initialise(loadedScript, false);

Filtration/Services/ItemFilterPersistenceService.cs

@@ -1,4 +1,5 @@
 using System.IO;
+using System.Threading.Tasks;
 using Filtration.Common.Services;
 using Filtration.ObjectModel;
 using Filtration.Properties;
@@ -10,8 +11,8 @@ namespace Filtration.Services
     {
         void SetItemFilterScriptDirectory(string path);
         string ItemFilterScriptDirectory { get; }
-        ItemFilterScript LoadItemFilterScript(string filePath);
+        Task<ItemFilterScript> LoadItemFilterScriptAsync(string filePath);
-        void SaveItemFilterScript(ItemFilterScript script);
+        Task SaveItemFilterScriptAsync(ItemFilterScript script);
         string DefaultPathOfExileDirectory();
     }
 
@@ -58,20 +59,30 @@ namespace Filtration.Services
             Settings.Default.DefaultFilterDirectory = path;
         }
 
-        public ItemFilterScript LoadItemFilterScript(string filePath)
+        public async Task<ItemFilterScript> LoadItemFilterScriptAsync(string filePath)
         {
-            var script = 
+            ItemFilterScript loadedScript = null;
-                _itemFilterScriptTranslator.TranslateStringToItemFilterScript(
+            await Task.Run(() =>
+            {
+                loadedScript = _itemFilterScriptTranslator.TranslateStringToItemFilterScript(
                     _fileSystemService.ReadFileAsString(filePath));
+            });
 
-            script.FilePath = filePath;
+            if (loadedScript != null)
-            return script;
+            {
+                loadedScript.FilePath = filePath;
+            }
+        
+            return loadedScript;
         }
 
-        public void SaveItemFilterScript(ItemFilterScript script)
+        public async Task SaveItemFilterScriptAsync(ItemFilterScript script)
         {
-            _fileSystemService.WriteFileFromString(script.FilePath,
+            await Task.Run(() =>
-                _itemFilterScriptTranslator.TranslateItemFilterScriptToString(script));
+            {
+                _fileSystemService.WriteFileFromString(script.FilePath,
+                    _itemFilterScriptTranslator.TranslateItemFilterScriptToString(script));
+            });
         }
     }
 }

Filtration/Services/UpdateCheckService.cs

@@ -7,7 +7,7 @@ namespace Filtration.Services
 {
     internal interface IUpdateCheckService
     {
-        Task<UpdateData> GetUpdateData();
+        Task<UpdateData> GetUpdateDataAsync();
     }
 
     internal class UpdateCheckService : IUpdateCheckService
@@ -20,7 +20,7 @@ namespace Filtration.Services
             _httpService = httpService;
         }
 
-        public async Task<UpdateData> GetUpdateData()
+        public async Task<UpdateData> GetUpdateDataAsync()
         {
             var updateXml = await _httpService.GetContentAsync(UpdateDataUrl);
             return (DeserializeUpdateData(updateXml));

Filtration/ViewModels/AvalonDockWorkspaceViewModel.cs

@@ -39,9 +39,9 @@ namespace Filtration.ViewModels
         private readonly ReadOnlyObservableCollection<IDocument> _readOnlyOpenDocuments;
 
         public AvalonDockWorkspaceViewModel(ISectionBrowserViewModel sectionBrowserViewModel,
-                                            IBlockGroupBrowserViewModel blockGroupBrowserViewModel,
+            IBlockGroupBrowserViewModel blockGroupBrowserViewModel,
-                                            IStartPageViewModel startPageViewModel,
+            IStartPageViewModel startPageViewModel,
-                                            IBlockOutputPreviewViewModel blockOutputPreviewViewModel)
+            IBlockOutputPreviewViewModel blockOutputPreviewViewModel)
         {
             _sectionBrowserViewModel = sectionBrowserViewModel;
             _blockGroupBrowserViewModel = blockGroupBrowserViewModel;
@@ -123,7 +123,6 @@ namespace Filtration.ViewModels
 
         private List<IToolViewModel> _tools;
 
-
         public IEnumerable<IToolViewModel> Tools
         {
             get

Filtration/ViewModels/ItemFilterScriptViewModel.cs

@@ -4,6 +4,7 @@ using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Data;
 using System.Windows.Forms;
@@ -104,7 +105,7 @@ namespace Filtration.ViewModels
             
             ToggleShowAdvancedCommand = new RelayCommand<bool>(OnToggleShowAdvancedCommand);
             ClearFilterCommand = new RelayCommand(OnClearFilterCommand, () => BlockFilterPredicate != null);
-            CloseCommand = new RelayCommand(OnCloseCommand);
+            CloseCommand = new RelayCommand(async () => await OnCloseCommand());
             DeleteBlockCommand = new RelayCommand(OnDeleteBlockCommand, () => SelectedBlockViewModel != null);
             MoveBlockToTopCommand = new RelayCommand(OnMoveBlockToTopCommand, () => SelectedBlockViewModel != null);
             MoveBlockUpCommand = new RelayCommand(OnMoveBlockUpCommand, () => SelectedBlockViewModel != null);
@@ -351,20 +352,21 @@ namespace Filtration.ViewModels
             ContentId = "ScriptContentId";
         }
 
-        public void Save()
+        public async Task SaveAsync()
         {
             if (!ValidateScript()) return;
             if (!CheckForUnusedThemeComponents()) return;
 
             if (_filenameIsFake)
             {
-                SaveAs();
+                await SaveAsAsync();
                 return;
             }
 
+            Messenger.Default.Send(new NotificationMessage("ShowLoadingBanner"));
             try
             {
-                _persistenceService.SaveItemFilterScript(Script);
+                await _persistenceService.SaveItemFilterScriptAsync(Script);
                 RemoveDirtyFlag();
             }
             catch (Exception e)
@@ -377,9 +379,15 @@ namespace Filtration.ViewModels
                 _messageBoxService.Show("Save Error", "Error saving filter file - " + e.Message, MessageBoxButton.OK,
                     MessageBoxImage.Error);
             }
+            finally
+            {
+                Messenger.Default.Send(new NotificationMessage("HideLoadingBanner"));
+            }
+
+            return;
         }
 
-        public void SaveAs()
+        public async Task SaveAsAsync()
         {
             if (!ValidateScript()) return;
             if (!CheckForUnusedThemeComponents()) return;
@@ -395,11 +403,13 @@ namespace Filtration.ViewModels
 
             if (result != DialogResult.OK) return;
             
+            Messenger.Default.Send(new NotificationMessage("ShowLoadingBanner"));
+
             var previousFilePath = Script.FilePath;
             try
             {
                 Script.FilePath = saveDialog.FileName;
-                _persistenceService.SaveItemFilterScript(Script);
+                await _persistenceService.SaveItemFilterScriptAsync(Script);
                 _filenameIsFake = false;
                 Title = Filename;
                 RemoveDirtyFlag();
@@ -415,6 +425,10 @@ namespace Filtration.ViewModels
                     MessageBoxImage.Error);
                 Script.FilePath = previousFilePath;
             }
+            finally
+            {
+                Messenger.Default.Send(new NotificationMessage("HideLoadingBanner"));
+            }
         }
 
         private bool CheckForUnusedThemeComponents()
@@ -480,12 +494,12 @@ namespace Filtration.ViewModels
             return false;
         }
 
-        private void OnCloseCommand()
+        private async Task OnCloseCommand()
         {
-            Close();
+            await Close();
         }
         
-        public void Close()
+        public async Task Close()
         {
             if (!IsDirty)
             {
@@ -499,20 +513,20 @@ namespace Filtration.ViewModels
                 switch (result)
                 {
                     case MessageBoxResult.Yes:
-                        {
+                    {
-                            Save();
+                        await SaveAsync();
-                            CloseScript();
+                        CloseScript();
-                            break;
+                        break;
-                        }
+                    }
                     case MessageBoxResult.No:
-                        {
+                    {
-                            CloseScript();
+                        CloseScript();
-                            break;
+                        break;
-                        }
+                    }
                     case MessageBoxResult.Cancel:
-                        {
+                    {
-                            return;
+                        return;
-                        }
+                    }
                 }
             }
         }
@@ -777,6 +791,7 @@ namespace Filtration.ViewModels
             IsDirty = true;
             SelectedBlockViewModel = vm;
             RaisePropertyChanged("ItemFilterSectionViewModels");
+            Messenger.Default.Send(new NotificationMessage("SectionsChanged"));
         }
 
         private void OnExpandAllBlocksCommand()
@@ -808,9 +823,17 @@ namespace Filtration.ViewModels
             
             if (result == MessageBoxResult.Yes)
             {
+                var isSection = targetBlockViewModel.Block is ItemFilterSection;
+
                 Script.ItemFilterBlocks.Remove(targetBlockViewModel.Block);
                 ItemFilterBlockViewModels.Remove(targetBlockViewModel);
                 IsDirty = true;
+
+                if (isSection)
+                {
+                    Messenger.Default.Send(new NotificationMessage("SectionsChanged"));
+                }
+
             }
             SelectedBlockViewModel = null;
         }

Filtration/ViewModels/MainWindowViewModel.cs

@@ -3,6 +3,7 @@ using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Reflection;
+using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Forms;
 using System.Windows.Media;
@@ -34,7 +35,7 @@ namespace Filtration.ViewModels
     {
         RelayCommand OpenScriptCommand { get; }
         RelayCommand NewScriptCommand { get; }
-        bool CloseAllDocuments();
+        Task<bool> CloseAllDocuments();
     }
 
     internal class MainWindowViewModel : FiltrationViewModelBase, IMainWindowViewModel
@@ -51,6 +52,7 @@ namespace Filtration.ViewModels
         private readonly IUpdateCheckService _updateCheckService;
         private readonly IUpdateAvailableViewModel _updateAvailableViewModel;
         private readonly IMessageBoxService _messageBoxService;
+        private bool _showLoadingBanner;
 
         public MainWindowViewModel(IItemFilterScriptRepository itemFilterScriptRepository,
                                    IItemFilterScriptTranslator itemFilterScriptTranslator,
@@ -76,11 +78,11 @@ namespace Filtration.ViewModels
 
             NewScriptCommand = new RelayCommand(OnNewScriptCommand);
             CopyScriptCommand = new RelayCommand(OnCopyScriptCommand, () => ActiveDocumentIsScript);
-            OpenScriptCommand = new RelayCommand(OnOpenScriptCommand);
+            OpenScriptCommand = new RelayCommand(async () => await OnOpenScriptCommand());
-            OpenThemeCommand = new RelayCommand(OnOpenThemeCommand);
+            OpenThemeCommand = new RelayCommand(async () => await OnOpenThemeCommand());
 
-            SaveCommand = new RelayCommand(OnSaveDocumentCommand, ActiveDocumentIsEditable);
+            SaveCommand = new RelayCommand(async () => await OnSaveDocumentCommand(), ActiveDocumentIsEditable);
-            SaveAsCommand = new RelayCommand(OnSaveAsCommand, ActiveDocumentIsEditable);
+            SaveAsCommand = new RelayCommand(async () => await OnSaveAsCommand(), ActiveDocumentIsEditable);
             CloseCommand = new RelayCommand(OnCloseDocumentCommand, ActiveDocumentIsEditable);
 
             CopyBlockCommand = new RelayCommand(OnCopyBlockCommand, () => ActiveDocumentIsScript && ActiveScriptHasSelectedBlock);
@@ -104,7 +106,7 @@ namespace Filtration.ViewModels
             ReplaceColorsCommand = new RelayCommand(OnReplaceColorsCommand, () => ActiveDocumentIsScript);
 
             CreateThemeCommand = new RelayCommand(OnCreateThemeCommand, () => ActiveDocumentIsScript);
-            ApplyThemeToScriptCommand = new RelayCommand(OnApplyThemeToScriptCommand, () => ActiveDocumentIsScript);
+            ApplyThemeToScriptCommand = new RelayCommand(async () => await OnApplyThemeToScriptCommand(), () => ActiveDocumentIsScript);
             EditMasterThemeCommand = new RelayCommand(OnEditMasterThemeCommand, () => ActiveDocumentIsScript);
 
             AddTextColorThemeComponentCommand = new RelayCommand(OnAddTextColorThemeComponentCommand, () => ActiveDocumentIsTheme && ActiveThemeIsEditable);
@@ -166,7 +168,19 @@ namespace Filtration.ViewModels
                     }
                     case "OpenScript":
                     {
+#pragma warning disable 4014
                         OnOpenScriptCommand();
+#pragma warning restore 4014
+                        break;
+                    }
+                    case "ShowLoadingBanner":
+                    {
+                        ShowLoadingBanner = true;
+                        break;
+                    }
+                    case "HideLoadingBanner":
+                    {
+                        ShowLoadingBanner = false;
                         break;
                     }
                 }
@@ -221,7 +235,7 @@ namespace Filtration.ViewModels
             
             try
             {
-                var result = await _updateCheckService.GetUpdateData();
+                var result = await _updateCheckService.GetUpdateDataAsync();
 
                 if (result.LatestVersionMajorPart >= assemblyVersion.FileMajorPart &&
                     result.LatestVersionMinorPart > assemblyVersion.FileMinorPart)
@@ -279,6 +293,16 @@ namespace Filtration.ViewModels
             }
         }
 
+        public bool ShowLoadingBanner
+        {
+            get { return _showLoadingBanner; }
+            private set
+            {
+                _showLoadingBanner = value;
+                RaisePropertyChanged();
+            }
+        }
+
         public bool ActiveDocumentIsScript
         {
             get { return _avalonDockWorkspaceViewModel.ActiveDocument != null && _avalonDockWorkspaceViewModel.ActiveDocument.IsScript; }
@@ -362,7 +386,8 @@ namespace Filtration.ViewModels
             var aboutWindow = new AboutWindow();
             aboutWindow.ShowDialog();
         }
-        private void OnOpenScriptCommand()
+
+        private async Task OnOpenScriptCommand()
         {
             var openFileDialog = new OpenFileDialog
             {
@@ -374,12 +399,14 @@ namespace Filtration.ViewModels
 
             IItemFilterScriptViewModel loadedViewModel;
 
+            Messenger.Default.Send(new NotificationMessage("ShowLoadingBanner"));
             try
             {
-                loadedViewModel = _itemFilterScriptRepository.LoadScriptFromFile(openFileDialog.FileName);
+                loadedViewModel = await _itemFilterScriptRepository.LoadScriptFromFileAsync(openFileDialog.FileName);
             }
             catch(IOException e)
             {
+                Messenger.Default.Send(new NotificationMessage("HideLoadingBanner"));
                 if (_logger.IsErrorEnabled)
                 {
                     _logger.Error(e);
@@ -390,10 +417,11 @@ namespace Filtration.ViewModels
                 return;
             }
 
+            Messenger.Default.Send(new NotificationMessage("HideLoadingBanner"));
             _avalonDockWorkspaceViewModel.AddDocument(loadedViewModel);
         }
 
-        private void OnOpenThemeCommand()
+        private async Task OnOpenThemeCommand()
         {
 
             var filePath = ShowOpenThemeDialog();
@@ -406,7 +434,7 @@ namespace Filtration.ViewModels
 
             try
             {
-                loadedViewModel = _themeProvider.LoadThemeFromFile(filePath);
+                loadedViewModel = await _themeProvider.LoadThemeFromFile(filePath);
             }
             catch (IOException e)
             {
@@ -423,7 +451,7 @@ namespace Filtration.ViewModels
             _avalonDockWorkspaceViewModel.AddDocument(loadedViewModel);
         }
 
-        private void OnApplyThemeToScriptCommand()
+        private async Task OnApplyThemeToScriptCommand()
         {
             var filePath = ShowOpenThemeDialog();
             if (string.IsNullOrEmpty(filePath))
@@ -435,7 +463,7 @@ namespace Filtration.ViewModels
 
             try
             {
-                loadedTheme = _themeProvider.LoadThemeModelFromFile(filePath);
+                loadedTheme = await _themeProvider.LoadThemeModelFromFile(filePath);
             }
             catch (IOException e)
             {
@@ -490,14 +518,14 @@ namespace Filtration.ViewModels
             }
         }
 
-        private void OnSaveDocumentCommand()
+        private async Task OnSaveDocumentCommand()
         {
-            ((IEditableDocument)_avalonDockWorkspaceViewModel.ActiveDocument).Save();
+            await ((IEditableDocument)_avalonDockWorkspaceViewModel.ActiveDocument).SaveAsync();
         }
 
-        private void OnSaveAsCommand()
+        private async Task OnSaveAsCommand()
         {
-            ((IEditableDocument)_avalonDockWorkspaceViewModel.ActiveDocument).SaveAs();
+            await ((IEditableDocument)_avalonDockWorkspaceViewModel.ActiveDocument).SaveAsAsync();
         }
 
         private void OnReplaceColorsCommand()
@@ -629,14 +657,14 @@ namespace Filtration.ViewModels
                 _avalonDockWorkspaceViewModel.ActiveThemeViewModel.SelectedThemeComponent);
         }
 
-        public bool CloseAllDocuments()
+        public async Task<bool> CloseAllDocuments()
         {
             var openDocuments = _avalonDockWorkspaceViewModel.OpenDocuments.OfType<IEditableDocument>().ToList();
             
             foreach (var document in openDocuments)
             {
                 var docCount = _avalonDockWorkspaceViewModel.OpenDocuments.OfType<IEditableDocument>().Count();
-                document.Close();
+                await document.Close();
                 if (_avalonDockWorkspaceViewModel.OpenDocuments.OfType<IEditableDocument>().Count() == docCount)
                 {
                     return false;

Filtration/ViewModels/StartPageViewModel.cs

@@ -1,4 +1,5 @@
-using Filtration.Common.ViewModels;
+using System.Threading.Tasks;
+using Filtration.Common.ViewModels;
 using Filtration.Interface;
 using GalaSoft.MvvmLight.CommandWpf;
 using GalaSoft.MvvmLight.Messaging;
@@ -25,7 +26,7 @@ namespace Filtration.ViewModels
         public bool IsScript { get { return false; } }
         public bool IsTheme { get { return false; } }
 
-        public void Close()
+        public Task Close()
         {
             throw new System.NotImplementedException();
         }

Filtration/ViewModels/ToolPanes/SectionBrowserViewModel.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Windows.Media.Imaging;
+using GalaSoft.MvvmLight.Messaging;
 
 namespace Filtration.ViewModels.ToolPanes
 {
@@ -23,6 +24,18 @@ namespace Filtration.ViewModels.ToolPanes
             icon.UriSource = new Uri("pack://application:,,,/Filtration;component/Resources/Icons/add_section_icon.png");
             icon.EndInit();
             IconSource = icon;
+
+            Messenger.Default.Register<NotificationMessage>(this, message =>
+            {
+                switch (message.Notification)
+                {
+                    case "SectionsChanged":
+                    {
+                        OnActiveDocumentChanged(this, EventArgs.Empty);
+                        break;
+                    }
+                }
+            });
         }
 
         public const string ToolContentId = "SectionBrowserTool";

Filtration/Views/AvalonDock/AvalonDockWorkspaceView.xaml

@@ -10,9 +10,10 @@
              xmlns:converters="clr-namespace:Filtration.Converters"
              xmlns:xcad="http://schemas.xceed.com/wpf/xaml/avalondock"
              xmlns:themeEditorViews="clr-namespace:Filtration.ThemeEditor.Views;assembly=Filtration.ThemeEditor"
+             xmlns:gif="http://wpfanimatedgif.codeplex.com"
              mc:Ignorable="d" 
              d:DataContext="{d:DesignInstance d:Type=viewModels:AvalonDockWorkspaceViewModel}"
-             d:DesignHeight="300" d:DesignWidth="300">
+             d:DesignHeight="300" d:DesignWidth="700">
     <UserControl.Resources>
         <xcad:BoolToVisibilityConverter x:Key="AvalonBoolToVisibilityConverter" />
         <converters:ActiveDocumentConverter x:Key="ActiveDocumentConverter" />

Filtration/Views/MainWindow.xaml

@@ -8,6 +8,7 @@
         xmlns:viewModels="clr-namespace:Filtration.ViewModels"
         xmlns:viewsAvalonDock="clr-namespace:Filtration.Views.AvalonDock"
         xmlns:views="clr-namespace:Filtration.Views"
+        xmlns:gif="http://wpfanimatedgif.codeplex.com"
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance Type=viewModels:MainWindowViewModel}"
         Title="{Binding WindowTitle}" Height="762" Width="1126" IsIconVisible="True"
@@ -18,7 +19,7 @@
         <KeyBinding Command="{Binding NewScriptCommand}" Modifiers="Control" Key="N" />
     </fluent:RibbonWindow.InputBindings>
     <DockPanel x:Name="RootDockPanel">
-        <fluent:Ribbon DockPanel.Dock="Top" x:Name="RibbonRoot">
+        <fluent:Ribbon DockPanel.Dock="Top" x:Name="RibbonRoot" IsEnabled="{Binding ShowLoadingBanner, Converter={StaticResource BoolInverterConverter}}">
             <fluent:Ribbon.Menu>
                 <fluent:Backstage>
                     <fluent:BackstageTabControl>
@@ -118,6 +119,30 @@
         </fluent:Ribbon>
         <Grid>
             <viewsAvalonDock:AvalonDockWorkspaceView DataContext="{Binding AvalonDockWorkspaceViewModel}" />
+            <Grid ZIndex="9999" Visibility="{Binding ShowLoadingBanner, Converter={StaticResource BooleanToVisibilityConverter}, ConverterParameter={x:Static Visibility.Hidden}}">
+
+                <Grid.Background>
+                    <SolidColorBrush Color="Black" Opacity="0.5" />
+                </Grid.Background>
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition  Width="*" />
+                        <ColumnDefinition  Width="Auto" />
+                        <ColumnDefinition  Width="*" />
+                    </Grid.ColumnDefinitions>
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="*" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="*" />
+                    </Grid.RowDefinitions>
+                    <Border Grid.Row="1" Grid.Column="1" BorderBrush="Black" BorderThickness="1" Background="White" Padding="20">
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="20" FontWeight="DemiBold">Working...</TextBlock>
+                            <Image gif:ImageBehavior.AnimatedSource="/Filtration;component/Resources/loading_spinner.gif" Height="32"  Margin="10,0,0,0"/>
+                        </StackPanel>
+                    </Border>
+                </Grid>
+            </Grid>
         </Grid>
     </DockPanel>
 </fluent:RibbonWindow>

Filtration/Views/MainWindow.xaml.cs

@@ -1,7 +1,6 @@
-using System;
+using System.ComponentModel;
-using System.ComponentModel;
+using System.Threading.Tasks;
 using System.Windows;
-using Filtration.Annotations;
 using Filtration.ViewModels;
 
 namespace Filtration.Views
@@ -13,7 +12,7 @@ namespace Filtration.Views
 
     internal partial class MainWindow : IMainWindow
     {
-        private IMainWindowViewModel _mainWindowViewModel;
+        private readonly IMainWindowViewModel _mainWindowViewModel;
 
         public MainWindow(IMainWindowViewModel mainWindowViewModel)
         {
@@ -40,11 +39,11 @@ namespace Filtration.Views
 
         private void MainWindow_OnClosing(object sender, CancelEventArgs e)
         {
-            var allDocumentsClosed = _mainWindowViewModel.CloseAllDocuments();
+            var allDocumentsClosed = _mainWindowViewModel.CloseAllDocuments().Result;
-
             if (!allDocumentsClosed)
             {
                 e.Cancel = true;
+
             }
         }
     }

Filtration/packages.config

@@ -11,5 +11,6 @@
   <package id="NLog" version="4.0.1" targetFramework="net451" />
   <package id="NLog.Config" version="4.0.1" targetFramework="net451" />
   <package id="NLog.Schema" version="4.0.1" targetFramework="net451" />
+  <package id="WpfAnimatedGif" version="1.4.13" targetFramework="net451" />
   <package id="WPFToolkit" version="3.5.50211.1" targetFramework="net451" />
 </packages>