Implement browse button.

Author: grokys

src/GitHub.App/SampleData/Dialog/Clone/RepositoryCloneViewModelDesigner.cs

@@ -23,6 +23,7 @@ public RepositoryCloneViewModelDesigner()
         public IRepositorySelectViewModel GitHubTab { get; }
         public IRepositorySelectViewModel EnterpriseTab { get; }
         public IRepositoryUrlViewModel UrlTab { get; }
+        public ReactiveCommand<object> Browse { get; }
         public ReactiveCommand<CloneDialogResult> Clone { get; }
 
         public Task InitializeAsync(IConnection connection)

src/GitHub.App/ViewModels/Dialog/Clone/RepositoryCloneViewModel.cs

@@ -10,6 +10,7 @@
 using GitHub.Models;
 using GitHub.Services;
 using ReactiveUI;
+using Rothko;
 using Serilog;
 
 namespace GitHub.ViewModels.Dialog.Clone
@@ -19,6 +20,7 @@ namespace GitHub.ViewModels.Dialog.Clone
     public class RepositoryCloneViewModel : ViewModelBase, IRepositoryCloneViewModel
     {
         static readonly ILogger log = LogManager.ForContext<RepositoryCloneViewModel>();
+        readonly IOperatingSystem os;
         readonly IConnectionManager connectionManager;
         readonly IRepositoryCloneService service;
         readonly IReadOnlyList<IRepositoryCloneTabViewModel> tabs;
@@ -28,12 +30,14 @@ public class RepositoryCloneViewModel : ViewModelBase, IRepositoryCloneViewModel
 
         [ImportingConstructor]
         public RepositoryCloneViewModel(
+            IOperatingSystem os,
             IConnectionManager connectionManager,
             IRepositoryCloneService service,
             IRepositorySelectViewModel gitHubTab,
             IRepositorySelectViewModel enterpriseTab,
             IRepositoryUrlViewModel urlTab)
         {
+            this.os = os;
             this.connectionManager = connectionManager;
             this.service = service;
 
@@ -60,6 +64,7 @@ public RepositoryCloneViewModel(
                 (repo, error) => (repo, error))
                 .Select(x => x.repo != null && x.error == null);
 
+            Browse = ReactiveCommand.Create().OnExecuteCompleted(_ => BrowseForDirectory());
             Clone = ReactiveCommand.CreateAsyncObservable(
                 canClone,
                 _ => repository.Select(x => new CloneDialogResult(Path, x)));
@@ -87,6 +92,8 @@ public int SelectedTabIndex
 
         public IObservable<object> Done => Clone;
 
+        public ReactiveCommand<object> Browse { get; }
+
         public ReactiveCommand<CloneDialogResult> Clone { get; }
 
         public async Task InitializeAsync(IConnection connection)
@@ -113,6 +120,24 @@ public async Task InitializeAsync(IConnection connection)
             this.WhenAnyValue(x => x.SelectedTabIndex).Subscribe(x => tabs[x].Activate().Forget());
         }
 
+        void BrowseForDirectory()
+        {
+            var result = os.Dialog.BrowseForDirectory(Path, Resources.BrowseForDirectory);
+
+            if (result != BrowseDirectoryResult.Failed)
+            {
+                var path = result.DirectoryPath;
+                var selected = tabs[SelectedTabIndex].Repository;
+
+                if (selected != null)
+                {
+                    path = System.IO.Path.Combine(path, selected.Name);
+                }
+
+                Path = path;
+            }
+        }
+
         void UpdatePath(IRepositoryModel x)
         {
             if (x != null)

src/GitHub.Exports.Reactive/ViewModels/Dialog/Clone/IRepositoryCloneViewModel.cs

@@ -42,6 +42,11 @@ public interface IRepositoryCloneViewModel : IDialogContentViewModel, IConnectio
         /// </remarks>
         int SelectedTabIndex { get; }
 
+        /// <summary>
+        /// Gets the command executed when the user clicks "Browse".
+        /// </summary>
+        ReactiveCommand<object> Browse { get; }
+
         /// <summary>
         /// Gets the command executed when the user clicks "Clone".
         /// </summary>

src/GitHub.VisualStudio/Views/Dialog/Clone/RepositoryCloneView.xaml

@@ -36,6 +36,7 @@
                    Margin="16">
             <Label DockPanel.Dock="Left">Local Path</Label>
             <Button DockPanel.Dock="Right"
+                    Command="{Binding Browse}"
                     Style="{DynamicResource GitHubBlueLinkButton}"
                     VerticalContentAlignment="Center">
                 Browse

test/GitHub.App.UnitTests/ViewModels/Dialog/Clone/RepositoryCloneViewModelTests.cs

@@ -8,6 +8,7 @@
 using GitHub.ViewModels.Dialog.Clone;
 using NSubstitute;
 using NUnit.Framework;
+using Rothko;
 
 namespace GitHub.App.UnitTests.ViewModels.Dialog.Clone
 {
@@ -241,19 +242,22 @@ static IRepositoryCloneService CreateRepositoryCloneService()
         }
 
         static RepositoryCloneViewModel CreateTarget(
+            IOperatingSystem os = null,
             IConnectionManager connectionManager = null,
             IRepositoryCloneService service = null,
             IRepositorySelectViewModel gitHubTab = null,
             IRepositorySelectViewModel enterpriseTab = null,
             IRepositoryUrlViewModel urlTab = null)
         {
+            os = os ?? Substitute.For<IOperatingSystem>();
             connectionManager = connectionManager ?? CreateConnectionManager("https://github.com");
             service = service ?? CreateRepositoryCloneService();
             gitHubTab = gitHubTab ?? CreateSelectViewModel();
             enterpriseTab = enterpriseTab ?? CreateSelectViewModel();
             urlTab = urlTab ?? Substitute.For<IRepositoryUrlViewModel>();
 
             return new RepositoryCloneViewModel(
+                os,
                 connectionManager,
                 service,
                 gitHubTab,