Add RecentFiles module

src/Gemini/Framework/Document.cs

@@ -89,7 +89,8 @@ Task ICommandHandler<RedoCommandDefinition>.Run(Command command)
 
         void ICommandHandler<SaveFileCommandDefinition>.Update(Command command)
         {
-            command.Enabled = this is IPersistedDocument;
+            var persistedDocument = this as IPersistedDocument;
+            command.Enabled = (persistedDocument != null && persistedDocument.IsDirty);
         }
 
 	    async Task ICommandHandler<SaveFileCommandDefinition>.Run(Command command)
@@ -138,7 +139,7 @@ private static async Task DoSaveAs(IPersistedDocument persistedDocument)
             if (fileType != null)
                 filter = fileType.Name + "|*" + fileType.FileExtension + "|";
 
-            filter += "All Files|*.*";
+            filter += Properties.Resources.AllFiles + "|*.*";
             dialog.Filter = filter;
 
             if (dialog.ShowDialog() != true)
@@ -148,6 +149,10 @@ private static async Task DoSaveAs(IPersistedDocument persistedDocument)
 
             // Save file.
             await persistedDocument.Save(filePath);
+
+            // Add to recent files
+            IShell _shell = IoC.Get<IShell>();
+            _shell.RecentFiles.Update(filePath);
 	    }
 	}
 }

src/Gemini/Framework/IPersistedDocument.cs

@@ -5,6 +5,7 @@ namespace Gemini.Framework
     public interface IPersistedDocument : IDocument
     {
         bool IsNew { get; }
+        bool IsDirty { get; }
         string FileName { get; }
         string FilePath { get; }
 

src/Gemini/Framework/Services/IShell.cs

@@ -3,6 +3,7 @@
 using Gemini.Modules.MainMenu;
 using Gemini.Modules.StatusBar;
 using Gemini.Modules.ToolBars;
+using Gemini.Modules.RecentFiles;
 
 namespace Gemini.Framework.Services
 {
@@ -16,6 +17,7 @@ public interface IShell : IGuardClose, IDeactivate
 		IMenu MainMenu { get; }
         IToolBars ToolBars { get; }
 		IStatusBar StatusBar { get; }
+        IRecentFiles RecentFiles { get; }
 
         // TODO: Rename this to ActiveItem.
         ILayoutItem ActiveLayoutItem { get; set; }
@@ -29,6 +31,7 @@ public interface IShell : IGuardClose, IDeactivate
         void ShowTool<TTool>() where TTool : ITool;
 		void ShowTool(ITool model);
 
+        bool TryActivateDocumentByPath(string path);
 		void OpenDocument(IDocument model);
 		void CloseDocument(IDocument document);
 

src/Gemini/Gemini.csproj

@@ -178,6 +178,14 @@
     <Compile Include="Modules\MainMenu\Views\MainMenuSettingsView.xaml.cs">
       <DependentUpon>MainMenuSettingsView.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Modules\RecentFiles\Commands\OpenRecentFileCommandHandler.cs" />
+    <Compile Include="Modules\RecentFiles\Commands\OpenRecentFileCommandListDefinition.cs" />
+    <Compile Include="Modules\RecentFiles\Commands\RecentFilesCommandDefinition.cs" />
+    <Compile Include="Modules\RecentFiles\Commands\RecentFilesCommandHandler.cs" />
+    <Compile Include="Modules\RecentFiles\IRecentFiles.cs" />
+    <Compile Include="Modules\RecentFiles\MenuDefinitions.cs" />
+    <Compile Include="Modules\RecentFiles\ViewModels\RecentFileItemViewModel.cs" />
+    <Compile Include="Modules\RecentFiles\ViewModels\RecentFileViewModel.cs" />
     <Compile Include="Modules\Settings\Commands\OpenSettingsCommandDefinition.cs" />
     <Compile Include="Modules\Settings\Commands\OpenSettingsCommandHandler.cs" />
     <Compile Include="Modules\Settings\ISettingsEditor.cs" />

src/Gemini/Modules/MainMenu/MenuDefinitions.cs

@@ -21,6 +21,9 @@ public static class MenuDefinitions
         [Export]
         public static MenuItemGroupDefinition FileSaveMenuGroup = new MenuItemGroupDefinition(FileMenu, 6);
 
+        [Export]
+        public static MenuItemGroupDefinition FileOpenRecentMenuGroup = new MenuItemGroupDefinition(FileMenu, 9);
+
         [Export]
         public static MenuItemGroupDefinition FileExitOpenMenuGroup = new MenuItemGroupDefinition(FileMenu, 10);
 

src/Gemini/Modules/RecentFiles/Commands/OpenRecentFileCommandHandler.cs

@@ -0,0 +1,64 @@
+using Caliburn.Micro;
+using Gemini.Framework;
+using Gemini.Framework.Commands;
+using Gemini.Framework.Services;
+using Gemini.Modules.Shell.Commands;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace Gemini.Modules.RecentFiles.Commands
+{
+    [CommandHandler]
+    public class OpenRecentFileCommandHandler : ICommandListHandler<OpenRecentFileCommandListDefinition>
+    {
+        private readonly IShell _shell;
+
+        [ImportingConstructor]
+        public OpenRecentFileCommandHandler(IShell shell)
+        {
+            _shell = shell;
+        }
+
+        public void Populate(Command command, List<Command> commands)
+        {
+            for (var i = 0; i < _shell.RecentFiles.Items.Count; i++)
+            {
+                var item = _shell.RecentFiles.Items[i];
+                commands.Add(new Command(command.CommandDefinition)
+                {
+                    Text = string.Format("_{0} {1}", i + 1, item.DisplayName),
+                    ToolTip = item.FilePath,
+                    Tag = item.FilePath
+                });
+            }
+        }
+
+        public async Task Run(Command command)
+        {
+            var newPath = (string)command.Tag;
+
+            // Check if the document is already open
+            foreach (var document in _shell.Documents.OfType<PersistedDocument>().Where(d => !d.IsNew))
+            {
+                if (string.IsNullOrEmpty(document.FilePath))
+                    continue;
+
+                var docPath = Path.GetFullPath(document.FilePath);
+                if (string.Equals(newPath, docPath, System.StringComparison.OrdinalIgnoreCase))
+                {
+                    _shell.OpenDocument(document);
+                    return;
+                }
+            }
+
+            _shell.OpenDocument(await OpenFileCommandHandler.GetEditor(newPath));
+
+            // Add the file to the recent documents list
+            _shell.RecentFiles.Update(newPath);
+        }
+    }
+}

src/Gemini/Modules/RecentFiles/Commands/OpenRecentFileCommandListDefinition.cs

@@ -0,0 +1,15 @@
+using Gemini.Framework.Commands;
+
+namespace Gemini.Modules.RecentFiles.Commands
+{
+    [CommandDefinition]
+    public class OpenRecentFileCommandListDefinition : CommandListDefinition
+    {
+        public const string CommandName = "File.OpenRecentFileList";
+
+        public override string Name
+        {
+            get { return CommandName; }
+        }
+    }
+}

src/Gemini/Modules/RecentFiles/Commands/RecentFilesCommandDefinition.cs

@@ -0,0 +1,26 @@
+using Gemini.Framework.Commands;
+using Gemini.Properties;
+
+namespace Gemini.Modules.RecentFiles.Commands
+{
+    [CommandDefinition]
+    public class RecentFilesCommandDefinition : CommandDefinition
+    {
+        public const string CommandName = "File.RecentFiles";
+
+        public override string Name
+        {
+            get { return CommandName; }
+        }
+
+        public override string Text
+        {
+            get { return Resources.FileRecentFilesCommandText; }
+        }
+
+        public override string ToolTip
+        {
+            get { return Resources.FileRecentFilesCommandToolTip; }
+        }
+    }
+}

src/Gemini/Modules/RecentFiles/Commands/RecentFilesCommandHandler.cs

@@ -0,0 +1,29 @@
+using Gemini.Framework.Commands;
+using Gemini.Framework.Services;
+using System.ComponentModel.Composition;
+using System.Threading.Tasks;
+
+namespace Gemini.Modules.RecentFiles.Commands
+{
+    [CommandHandler]
+    public class RecentFilesCommandHandler : CommandHandlerBase<RecentFilesCommandDefinition>
+    {
+        private readonly IShell _shell;
+
+        [ImportingConstructor]
+        public RecentFilesCommandHandler(IShell shell)
+        {
+            _shell = shell;
+        }
+
+        public override void Update(Command command)
+        {
+            command.Enabled = (_shell.RecentFiles.Items.Count > 0);
+        }
+
+        public override Task Run(Command command)
+        {
+            return null;
+        }
+    }
+}

src/Gemini/Modules/RecentFiles/IRecentFiles.cs

@@ -0,0 +1,12 @@
+using Caliburn.Micro;
+using Gemini.Modules.RecentFiles.ViewModels;
+
+namespace Gemini.Modules.RecentFiles
+{
+    public interface IRecentFiles
+    {
+        IObservableCollection<RecentFileItemViewModel> Items { get; }
+
+        void Update(string filePath);
+    }
+}

src/Gemini/Modules/RecentFiles/MenuDefinitions.cs

@@ -0,0 +1,26 @@
+using Gemini.Framework.Menus;
+using Gemini.Modules.RecentFiles.Commands;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Gemini.Modules.RecentFiles
+{
+    public static class MenuDefinitions
+    {
+        [Export]
+        public static MenuItemDefinition FileRecentFilesMenuItem = new CommandMenuItemDefinition<RecentFilesCommandDefinition>(
+            MainMenu.MenuDefinitions.FileOpenRecentMenuGroup, 0);
+
+        [Export]
+        public static MenuItemGroupDefinition FileRecentFilesCascadeGroup = new MenuItemGroupDefinition(
+            FileRecentFilesMenuItem, 0);
+
+        [Export]
+        public static MenuItemDefinition FileOpenRecentMenuItemList = new CommandMenuItemDefinition<OpenRecentFileCommandListDefinition>(
+            FileRecentFilesCascadeGroup, 0);
+    }
+}

src/Gemini/Modules/RecentFiles/ViewModels/RecentFileItemViewModel.cs

@@ -0,0 +1,71 @@
+using Caliburn.Micro;
+
+namespace Gemini.Modules.RecentFiles.ViewModels
+{
+    public class RecentFileItemViewModel : PropertyChangedBase
+    {
+        private int _index;
+        public int Index
+        {
+            get { return _index; }
+            internal set
+            {
+                _index = value;
+                NotifyOfPropertyChange(() => Index);
+            }
+        }
+
+        private string _filePath;
+        public string FilePath
+        {
+            get { return _filePath; }
+            set
+            {
+                _filePath = value;
+                _displayName = ShortenPath(_filePath);
+                NotifyOfPropertyChange(() => FilePath);
+            }
+        }
+
+        private string _displayName;
+        public string DisplayName
+        {
+            get { return _displayName; }
+        }
+
+        // TODO: will implement Pinned
+        private bool _pinned = false;
+        public bool Pinned
+        {
+            get { return _pinned; }
+            set
+            {
+                _pinned = value;
+                NotifyOfPropertyChange(() => Pinned);
+            }
+        }
+
+        public RecentFileItemViewModel(string filePath, bool pinned = false)
+        {
+            _filePath = filePath;
+            _displayName = ShortenPath(filePath);
+
+            _pinned = pinned;
+        }
+
+        // http://stackoverflow.com/questions/8360360/function-to-shrink-file-path-to-be-more-human-readable
+        private string ShortenPath(string path, int maxLength = 50)
+        {
+            string[] splits = path.Split('\\');
+
+            string output = "";
+
+            if (splits.Length > 4)
+                output = splits[0] + "\\" + splits[1] + "\\...\\" + splits[splits.Length - 2] + "\\" + splits[splits.Length - 1];
+            else
+                output = string.Join("\\", splits, 0, splits.Length);
+
+            return output;
+        }
+    }
+}