Add support for moving a Note to another folder

The Folder selection dialog needs a lot of work, but it's a start.

lib/core/git_repo.dart

@@ -81,6 +81,19 @@ class GitNoteRepository {
     return NoteRepoResult(noteFilePath: newFullPath, error: false);
   }
 
+  Future<NoteRepoResult> moveNote(
+    String oldFullPath,
+    String newFullPath,
+  ) async {
+    // FIXME: This is a hacky way of adding the changes, ideally we should be calling rm + add or something
+    await _gitRepo.add(".");
+    await _gitRepo.commit(
+      message: "Note Moved",
+    );
+
+    return NoteRepoResult(noteFilePath: newFullPath, error: false);
+  }
+
   Future<NoteRepoResult> removeNote(String noteFilePath) async {
     var pathSpec = noteFilePath.replaceFirst(gitDirPath, "").substring(1);
 

lib/core/note.dart

@@ -172,6 +172,22 @@ class Note with ChangeNotifier implements Comparable<Note> {
     notifyListeners();
   }
 
+  bool move(NotesFolder destFolder) {
+    var destPath = p.join(destFolder.folderPath, fileName);
+    if (File(destPath).existsSync()) {
+      return false;
+    }
+
+    File(filePath).renameSync(destPath);
+
+    parent.remove(this);
+    parent = destFolder;
+    destFolder.add(this);
+
+    notifyListeners();
+    return true;
+  }
+
   @override
   int get hashCode => _filePath.hashCode;
 

lib/editors/markdown_editor.dart

@@ -4,7 +4,7 @@ import 'package:gitjournal/core/note.dart';
 import 'package:gitjournal/widgets/note_viewer.dart';
 
 typedef NoteCallback = void Function(Note);
-enum DropDownChoices { Rename }
+enum DropDownChoices { Rename, MoveToFolder }
 
 class MarkdownEditor extends StatefulWidget {
   final Note note;
@@ -12,6 +12,7 @@ class MarkdownEditor extends StatefulWidget {
   final NoteCallback noteEditorChooserSelected;
   final NoteCallback exitEditorSelected;
   final NoteCallback renameNoteSelected;
+  final NoteCallback moveNoteToFolderSelected;
   final bool autofocusOnEditor;
 
   MarkdownEditor({
@@ -21,6 +22,7 @@ class MarkdownEditor extends StatefulWidget {
     @required this.noteEditorChooserSelected,
     @required this.exitEditorSelected,
     @required this.renameNoteSelected,
+    @required this.moveNoteToFolderSelected,
     this.autofocusOnEditor = false,
   }) : super(key: key);
 
@@ -108,8 +110,17 @@ class MarkdownEditorState extends State<MarkdownEditor> {
           ),
           PopupMenuButton<DropDownChoices>(
             onSelected: (DropDownChoices choice) {
-              _updateNote();
-              widget.renameNoteSelected(note);
+              switch (choice) {
+                case DropDownChoices.Rename:
+                  _updateNote();
+                  widget.renameNoteSelected(note);
+                  return;
+
+                case DropDownChoices.MoveToFolder:
+                  _updateNote();
+                  widget.moveNoteToFolderSelected(note);
+                  return;
+              }
             },
             itemBuilder: (BuildContext context) =>
                 <PopupMenuEntry<DropDownChoices>>[
@@ -117,6 +128,10 @@ class MarkdownEditorState extends State<MarkdownEditor> {
                 value: DropDownChoices.Rename,
                 child: Text('Edit File Name'),
               ),
+              const PopupMenuItem<DropDownChoices>(
+                value: DropDownChoices.MoveToFolder,
+                child: Text('Move to Folder'),
+              ),
             ],
           ),
         ],

lib/editors/raw_editor.dart

@@ -4,7 +4,7 @@ import 'package:gitjournal/core/note.dart';
 import 'package:gitjournal/core/note_data_serializers.dart';
 
 typedef NoteCallback = void Function(Note);
-enum DropDownChoices { Rename }
+enum DropDownChoices { Rename, MoveToFolder }
 
 class RawEditor extends StatefulWidget {
   final Note note;
@@ -12,6 +12,7 @@ class RawEditor extends StatefulWidget {
   final NoteCallback noteEditorChooserSelected;
   final NoteCallback exitEditorSelected;
   final NoteCallback renameNoteSelected;
+  final NoteCallback moveNoteToFolderSelected;
 
   RawEditor({
     Key key,
@@ -20,6 +21,7 @@ class RawEditor extends StatefulWidget {
     @required this.noteEditorChooserSelected,
     @required this.exitEditorSelected,
     @required this.renameNoteSelected,
+    @required this.moveNoteToFolderSelected,
   }) : super(key: key);
 
   @override
@@ -88,8 +90,17 @@ class RawEditorState extends State<RawEditor> {
           ),
           PopupMenuButton<DropDownChoices>(
             onSelected: (DropDownChoices choice) {
-              _updateNote();
-              widget.renameNoteSelected(note);
+              switch (choice) {
+                case DropDownChoices.Rename:
+                  _updateNote();
+                  widget.renameNoteSelected(note);
+                  return;
+
+                case DropDownChoices.MoveToFolder:
+                  _updateNote();
+                  widget.moveNoteToFolderSelected(note);
+                  return;
+              }
             },
             itemBuilder: (BuildContext context) =>
                 <PopupMenuEntry<DropDownChoices>>[
@@ -97,6 +108,10 @@ class RawEditorState extends State<RawEditor> {
                 value: DropDownChoices.Rename,
                 child: Text('Edit File Name'),
               ),
+              const PopupMenuItem<DropDownChoices>(
+                value: DropDownChoices.MoveToFolder,
+                child: Text('Move to Folder'),
+              ),
             ],
           ),
         ],

lib/screens/note_editor.dart

@@ -8,10 +8,9 @@ import 'package:gitjournal/editors/raw_editor.dart';
 import 'package:gitjournal/state_container.dart';
 import 'package:gitjournal/core/note_data_serializers.dart';
 import 'package:gitjournal/utils.dart';
+import 'package:gitjournal/widgets/folder_selection_dialog.dart';
 import 'package:gitjournal/widgets/rename_dialog.dart';
 
-enum NoteEditorDropDownChoices { Discard, SwitchEditor }
-
 class NoteEditor extends StatefulWidget {
   final Note note;
   final NotesFolder notesFolder;
@@ -73,6 +72,7 @@ class NoteEditorState extends State<NoteEditor> {
           noteEditorChooserSelected: _noteEditorChooserSelected,
           exitEditorSelected: _exitEditorSelected,
           renameNoteSelected: _renameNoteSelected,
+          moveNoteToFolderSelected: _moveNoteToFolderSelected,
           autofocusOnEditor: _isNewNote,
         );
       case EditorType.Raw:
@@ -83,6 +83,7 @@ class NoteEditorState extends State<NoteEditor> {
           noteEditorChooserSelected: _noteEditorChooserSelected,
           exitEditorSelected: _exitEditorSelected,
           renameNoteSelected: _renameNoteSelected,
+          moveNoteToFolderSelected: _moveNoteToFolderSelected,
         );
     }
     return null;
@@ -227,4 +228,15 @@ class NoteEditorState extends State<NoteEditor> {
     }
     return null;
   }
+
+  void _moveNoteToFolderSelected(Note note) async {
+    var destFolder = await showDialog<NotesFolder>(
+      context: context,
+      builder: (context) => FolderSelectionDialog(),
+    );
+    if (destFolder != null) {
+      final stateContainer = StateContainer.of(context);
+      stateContainer.moveNote(note, destFolder);
+    }
+  }
 }

lib/state_container.dart

@@ -139,7 +139,7 @@ class StateContainerState extends State<StateContainer> {
     });
   }
 
-  void renameFolder(NotesFolder folder, String newFolderName) async {
+  void renameFolder(NotesFolder folder, String newFolderName) {
     var oldFolderPath = folder.folderPath;
     folder.rename(newFolderName);
 
@@ -150,7 +150,7 @@ class StateContainerState extends State<StateContainer> {
     });
   }
 
-  void renameNote(Note note, String newFileName) async {
+  void renameNote(Note note, String newFileName) {
     var oldNotePath = note.filePath;
     note.rename(newFileName);
 
@@ -159,6 +159,15 @@ class StateContainerState extends State<StateContainer> {
     });
   }
 
+  void moveNote(Note note, NotesFolder destFolder) {
+    var oldNotePath = note.filePath;
+    note.move(destFolder);
+
+    _gitRepo.moveNote(oldNotePath, note.filePath).then((NoteRepoResult _) {
+      syncNotes();
+    });
+  }
+
   void addNote(Note note) {
     insertNote(0, note);
   }

lib/widgets/folder_selection_dialog.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:gitjournal/core/notes_folder.dart';
+import 'package:gitjournal/widgets/folder_tree_view.dart';
+import 'package:provider/provider.dart';
+
+typedef NoteFolderCallback = void Function(NotesFolder);
+
+class FolderSelectionDialog extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    final notesFolder = Provider.of<NotesFolder>(context);
+
+    var body = Container(
+      width: double.maxFinite,
+      child: FolderTreeView(
+        rootFolder: notesFolder,
+        onFolderEntered: (NotesFolder destFolder) {
+          Navigator.of(context).pop(destFolder);
+        },
+        longPressAllowed: false,
+      ),
+    );
+
+    return AlertDialog(
+      title: const Text('Select a Folder'),
+      content: body,
+    );
+  }
+}
+
+// FIXME: Add the previously as a radio button selected Folder

lib/widgets/folder_tree_view.dart

@@ -10,17 +10,21 @@ class FolderTreeView extends StatefulWidget {
   final FolderSelectedCallback onFolderSelected;
   final Function onFolderUnselected;
   final FolderSelectedCallback onFolderEntered;
+  final bool longPressAllowed;
 
   FolderTreeView({
     Key key,
     @required this.rootFolder,
-    @required this.onFolderSelected,
-    @required this.onFolderUnselected,
     @required this.onFolderEntered,
+    this.onFolderSelected = _doNothing,
+    this.onFolderUnselected = _doNothing,
+    this.longPressAllowed = true,
   }) : super(key: key);
 
   @override
   FolderTreeViewState createState() => FolderTreeViewState();
+
+  static void _doNothing(NotesFolder f) {}
 }
 
 class FolderTreeViewState extends State<FolderTreeView> {
@@ -43,6 +47,7 @@ class FolderTreeViewState extends State<FolderTreeView> {
         }
       },
       onLongPress: (folder) {
+        if (!widget.longPressAllowed) return;
         setState(() {
           inSelectionMode = true;
           selectedFolder = folder;