feat: create new window when dragging tab outside the app

src/Notepads/Core/NotepadsCore.cs

@@ -24,6 +24,7 @@
  using Windows.UI.Xaml.Input;
  using Windows.UI.Xaml.Media;
  using Microsoft.AppCenter.Analytics;
+ using Notepads.Core.SessionDataModels;
 
  public class NotepadsCore : INotepadsCore
  {
@@ -798,15 +799,46 @@ private async void Sets_SetDraggedOutside(object sender, SetDraggedOutsideEventA
  {
  if (Sets.Items?.Count > 1 && e.Set.Content is ITextEditor textEditor)
  {
- // Only allow untitled empty document to be dragged outside for now
- if (!textEditor.IsModified && textEditor.EditingFile == null)
+ if (textEditor.FileModificationState != FileModificationState.RenamedMovedOrDeleted)
  {
  DeleteTextEditor(textEditor);
- await NotepadsProtocolService.LaunchProtocolAsync(NotepadsOperationProtocol.OpenNewInstance);
+ var message = new ValueSet();
+ message.Add("EditorData", JsonConvert.SerializeObject(await BuildTextEditorSessionData(textEditor), Formatting.Indented));
+ message.Add("LastSavedText", (textEditor.IsModified || textEditor.FileModificationState == FileModificationState.Modified) && textEditor.EditingFile != null ? textEditor.LastSavedSnapshot.Content : null);
+ message.Add("PendingText", textEditor.IsModified ? textEditor.GetText() : null);
+ await NotepadsProtocolService.LaunchProtocolAsync(NotepadsOperationProtocol.OpenNewInstance, message);
+ }
+ else
+ {
+ NotificationCenter.Instance.PostNotification(_resourceLoader.GetString("TextEditor_FileRenamedMovedOrDeletedIndicator_ToolTip"), 3500);
  }
  }
  }
 
+ private async Task<TextEditorSessionDataV1> BuildTextEditorSessionData(ITextEditor textEditor)
+ {
+ TextEditorSessionDataV1 textEditorData = new TextEditorSessionDataV1
+ {
+ Id = textEditor.Id,
+ };
+
+ if (textEditor.EditingFile != null)
+ {
+ // Add the opened file to FutureAccessList so we can access it next launch
+ var futureAccessToken = textEditor.Id.ToString("N");
+ await FileSystemUtility.TryAddOrReplaceTokenInFutureAccessList(futureAccessToken, textEditor.EditingFile);
+ textEditorData.EditingFileFutureAccessToken = futureAccessToken;
+ textEditorData.EditingFileName = textEditor.EditingFileName;
+ textEditorData.EditingFilePath = textEditor.EditingFilePath;
+ }
+
+ textEditorData.PendingBackupFilePath = null;
+ textEditorData.LastSavedBackupFilePath = null;
+ textEditorData.StateMetaData = textEditor.GetTextEditorStateMetaData();
+
+ return textEditorData;
+ }
+
  #endregion
  }
 }

src/Notepads/Services/NotepadsProtocolService.cs

@@ -4,6 +4,9 @@
  using System.Collections.Generic;
  using System.Threading.Tasks;
  using Microsoft.AppCenter.Analytics;
+ using Windows.ApplicationModel;
+ using Windows.Foundation.Collections;
+ using Windows.System;
 
  public enum NotepadsOperationProtocol
  {
@@ -53,7 +56,7 @@ public static NotepadsOperationProtocol GetOperationProtocol(Uri uri, out string
  return NotepadsOperationProtocol.Unrecognized;
  }
 
- public static async Task<bool> LaunchProtocolAsync(NotepadsOperationProtocol operation)
+ public static async Task<bool> LaunchProtocolAsync(NotepadsOperationProtocol operation, ValueSet message = null)
  {
  try
  {
@@ -64,7 +67,9 @@ public static async Task<bool> LaunchProtocolAsync(NotepadsOperationProtocol ope
  else if (operation == NotepadsOperationProtocol.OpenNewInstance)
  {
  var uriToLaunch = $"notepads://{NewInstanceProtocolStr}";
- return await Windows.System.Launcher.LaunchUriAsync(new Uri(uriToLaunch.ToLower()));
+ var launcherOptions = new LauncherOptions();
+ launcherOptions.TargetApplicationPackageFamilyName = Package.Current.Id.FamilyName;
+ return await Launcher.LaunchUriAsync(new Uri(uriToLaunch.ToLower()), launcherOptions, message);
  }
  else
  {

src/Notepads/Views/NotepadsMainPage.IO.cs

@@ -11,6 +11,8 @@
  using Notepads.Controls.TextEditor;
  using Notepads.Services;
  using Notepads.Utilities;
+ using Notepads.Models;
+ using Notepads.Core.SessionDataModels;
 
  public sealed partial class NotepadsMainPage
  {
@@ -210,5 +212,46 @@ private static bool HaveNonemptyTextEditor(ITextEditor[] textEditors)
  }
  return false;
  }
+
+ private async Task<ITextEditor> RecoverTextEditorAsync(TextEditorSessionDataV1 editorSessionData, string lastSavedText, string pendingText)
+ {
+ StorageFile editingFile = null;
+
+ if (editorSessionData.EditingFileFutureAccessToken != null)
+ {
+ editingFile = await FileSystemUtility.GetFileFromFutureAccessList(editorSessionData.EditingFileFutureAccessToken);
+ }
+
+ ITextEditor textEditor;
+
+ if (editingFile == null && lastSavedText == null && pendingText == null)
+ {
+ textEditor = null;
+ }
+ else if (editingFile != null && lastSavedText == null && pendingText == null) // File without pending changes
+ {
+ var encoding = EncodingUtility.GetEncodingByName(editorSessionData.StateMetaData.LastSavedEncoding);
+ textEditor = await _notepadsCore.CreateTextEditor(editorSessionData.Id, editingFile, encoding: encoding, ignoreFileSizeLimit: true);
+ textEditor.ResetEditorState(editorSessionData.StateMetaData);
+ }
+ else // File with pending changes
+ {
+ var textFile = new TextFile(lastSavedText != null ? lastSavedText : string.Empty,
+ EncodingUtility.GetEncodingByName(editorSessionData.StateMetaData.LastSavedEncoding),
+ LineEndingUtility.GetLineEndingByName(editorSessionData.StateMetaData.LastSavedLineEnding),
+ editorSessionData.StateMetaData.DateModifiedFileTime);
+
+ textEditor = _notepadsCore.CreateTextEditor(
+ editorSessionData.Id,
+ textFile,
+ editingFile,
+ editorSessionData.StateMetaData.FileNamePlaceholder,
+ editorSessionData.StateMetaData.IsModified);
+
+ textEditor.ResetEditorState(editorSessionData.StateMetaData, pendingText);
+ }
+
+ return textEditor;
+ }
  }
 }

src/Notepads/Views/NotepadsMainPage.xaml.cs

@@ -26,6 +26,9 @@
  using Windows.UI.Xaml.Navigation;
  using Microsoft.AppCenter.Analytics;
  using Windows.Graphics.Printing;
+ using Windows.Foundation.Collections;
+ using Notepads.Core.SessionDataModels;
+ using Newtonsoft.Json;
 
  public sealed partial class NotepadsMainPage : Page
  {
@@ -34,6 +37,7 @@ public sealed partial class NotepadsMainPage : Page
  private string _appLaunchCmdDir;
  private string _appLaunchCmdArgs;
  private Uri _appLaunchUri;
+ private ValueSet _appLaunchEditorData;
 
  private readonly ResourceLoader _resourceLoader = ResourceLoader.GetForCurrentView();
 
@@ -190,6 +194,7 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
  break;
  case ProtocolActivatedEventArgs protocol:
  _appLaunchUri = protocol.Uri;
+ _appLaunchEditorData = protocol.Data;
  break;
  }
  }
@@ -231,9 +236,21 @@ private async void Sets_Loaded(object sender, RoutedEventArgs e)
  else if (_appLaunchUri != null)
  {
  var operation = NotepadsProtocolService.GetOperationProtocol(_appLaunchUri, out var context);
- if (operation == NotepadsOperationProtocol.OpenNewInstance || operation == NotepadsOperationProtocol.Unrecognized)
+ if (operation == NotepadsOperationProtocol.OpenNewInstance)
  {
- // Do nothing
+ try
+ {
+ var textEditor = await RecoverTextEditorAsync(JsonConvert.DeserializeObject<TextEditorSessionDataV1>((string)_appLaunchEditorData["EditorData"]),
+ (string)_appLaunchEditorData["LastSavedText"],
+ (string)_appLaunchEditorData["PendingText"]);
+ NotepadsCore.OpenTextEditor(textEditor);
+ loadedCount++;
+ }
+ catch (Exception)
+ {
+ // Do nothing
+ }
+ _appLaunchEditorData = null;
  }
  _appLaunchUri = null;
  }