Storage Module!

1 files changed, 135 insertions, 0 deletions

diff --git a/Software/Visual_Studio/PPC/Modules/Tango.PPC.Storage/ViewModels/MainViewVM.cs b/Software/Visual_Studio/PPC/Modules/Tango.PPC.Storage/ViewModels/MainViewVM.cs
new file mode 100644
index 000000000..cb48958dd
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Modules/Tango.PPC.Storage/ViewModels/MainViewVM.cs
@@ -0,0 +1,135 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.Core.Commands;
+using Tango.Explorer;
+using Tango.PPC.Common;
+using Tango.PPC.Common.Navigation;
+using Tango.PPC.Storage.TaskBarItems;
+using Tango.PPC.Storage.ViewContracts;
+
+namespace Tango.PPC.Storage.ViewModels
+{
+    /// <summary>
+    /// Represents the main view VM and entry point for <see cref="Storage.StorageModule"/>.
+    /// </summary>
+    /// <seealso cref="Tango.PPC.Common.PPCViewModel" />
+    public class MainViewVM : PPCViewModel<IMainView>, INavigationResultProvider<ExplorerFileItem, String>
+    {
+        private bool _allow_exit;
+        private ExplorerFileItem _selectedItem;
+
+        private String _currentPath;
+        public String CurrentPath
+        {
+            get { return _currentPath; }
+            set { _currentPath = value; RaisePropertyChangedAuto(); }
+        }
+
+        public RelayCommand CloseCommand { get; set; }
+
+        public RelayCommand<ExplorerFileItem> FileSelectedCommand { get; set; }
+
+        public MainViewVM()
+        {
+            CloseCommand = new RelayCommand(Close);
+            FileSelectedCommand = new RelayCommand<ExplorerFileItem>(OnFileSelected);
+        }
+
+        public override void OnApplicationStarted()
+        {
+
+        }
+
+        public override void OnApplicationReady()
+        {
+            base.OnApplicationReady();
+
+            NotificationProvider.PushTaskBarItem<StorageTaskBarItem>();
+            StorageProvider.StorageConnected += StorageProvider_StorageConnected;
+            StorageProvider.StorageDisconnected += StorageProvider_StorageDisconnected;
+        }
+
+        public override void OnNavigatedTo()
+        {
+            base.OnNavigatedTo();
+
+            _allow_exit = false;
+            _selectedItem = null;
+
+            if (StorageProvider.Drive != null)
+            {
+                CurrentPath = StorageProvider.Drive.RootDirectory.FullName;
+            }
+        }
+
+        private async void Close()
+        {
+            await NavigationManager.NavigateBack();
+        }
+
+        /// <summary>
+        /// Handles the storage connected event.
+        /// </summary>
+        /// <param name="sender">The sender.</param>
+        /// <param name="e">The drive info.</param>
+        private void StorageProvider_StorageConnected(object sender, System.IO.DriveInfo e)
+        {
+            InvokeUI(async () =>
+            {
+                if (await NotificationProvider.ShowQuestion("Disk Inserted. Do you want to browse?"))
+                {
+                    await NavigationManager.NavigateTo(Common.Navigation.NavigationView.StorageView);
+                }
+            });
+        }
+
+        /// <summary>
+        /// Handles the storage disconnected event.
+        /// </summary>
+        /// <param name="sender">The sender.</param>
+        /// <param name="e">The drive info.</param>
+        private void StorageProvider_StorageDisconnected(object sender, System.IO.DriveInfo e)
+        {
+            InvokeUI(async () =>
+            {
+                if (IsVisible)
+                {
+                    await NavigationManager.NavigateBack();
+                }
+            });
+        }
+
+        public override Task<bool> OnNavigateBackRequest()
+        {
+            if (CurrentPath == StorageProvider.Drive.RootDirectory.FullName || _allow_exit)
+            {
+                return Task.FromResult(true);
+            }
+            else
+            {
+                View.NavigateBack();
+                return Task.FromResult(false);
+            }
+        }
+
+        private async void OnFileSelected(ExplorerFileItem fileItem)
+        {
+            _allow_exit = true;
+            await NavigationManager.NavigateBack();
+            await NotificationProvider.ShowInfo($"File Selected: {fileItem.Name}");
+        }
+
+        public ExplorerFileItem GetNavigationResult()
+        {
+            return _selectedItem;
+        }
+
+        public void OnNavigationObjectReceived(string extension)
+        {
+
+        }
+    }
+}