TagsFolder: Auto add relevant tag to new notes

lib/core/note.dart

@@ -68,10 +68,17 @@ class Note with NotesNotifier {
 
   Note(this.parent, this._filePath);
 
-  Note.newNote(this.parent) {
+  Note.newNote(this.parent, {Map<String, dynamic> extraProps = const {}}) {
     created = DateTime.now();
     _loadState = NoteLoadState.Loaded;
     _fileFormat = NoteFileFormat.Markdown;
+
+    if (extraProps.isNotEmpty) {
+      extraProps.forEach((key, value) {
+        _data.props[key] = value;
+      });
+      noteSerializer.decode(_data, this);
+    }
   }
 
   String get filePath {

lib/core/note_serializer.dart

@@ -106,9 +106,15 @@ class NoteSerializer implements NoteSerializerInterface {
     }
 
     try {
-      var tags = data.props[settings.tagsKey] as YamlList;
+      var tags = data.props[settings.tagsKey];
       if (tags != null) {
-        note.tags = tags.map((t) => t.toString()).toSet();
+        if (tags is YamlList) {
+          note.tags = tags.map((t) => t.toString()).toSet();
+        } else if (tags is List) {
+          note.tags = tags.map((t) => t.toString()).toSet();
+        } else {
+          Log.e("Note Tags Decoding Failed: $tags");
+        }
       }
     } catch (e) {
       Log.e("Note Decoding Failed: $e");

lib/screens/folder_view.dart

@@ -28,8 +28,12 @@ enum DropDownChoices {
 
 class FolderView extends StatefulWidget {
   final NotesFolder notesFolder;
+  final Map<String, dynamic> newNoteExtraProps;
 
-  FolderView({@required this.notesFolder});
+  FolderView({
+    @required this.notesFolder,
+    this.newNoteExtraProps = const {},
+  });
 
   @override
   _FolderViewState createState() => _FolderViewState();
@@ -211,7 +215,11 @@ class _FolderViewState extends State<FolderView> {
     var routeType =
         SettingsEditorType.fromEditorType(editorType).toInternalString();
     var route = MaterialPageRoute(
-      builder: (context) => NoteEditor.newNote(fsFolder, editorType),
+      builder: (context) => NoteEditor.newNote(
+        fsFolder,
+        editorType,
+        newNoteExtraProps: widget.newNoteExtraProps,
+      ),
       settings: RouteSettings(name: '/newNote/$routeType'),
     );
     await Navigator.of(context).push(route);

lib/screens/note_editor.dart

@@ -29,23 +29,32 @@ class NoteEditor extends StatefulWidget {
   final String existingText;
   final List<String> existingImages;
 
+  final Map<String, dynamic> newNoteExtraProps;
+
   NoteEditor.fromNote(this.note)
       : notesFolder = note.parent,
         defaultEditorType = null,
         existingText = null,
-        existingImages = null;
+        existingImages = null,
+        newNoteExtraProps = null;
 
   NoteEditor.newNote(
     this.notesFolder,
     this.defaultEditorType, {
     this.existingText,
     this.existingImages,
+    this.newNoteExtraProps = const {},
   }) : note = null;
 
   @override
   NoteEditorState createState() {
     if (note == null) {
-      return NoteEditorState.newNote(notesFolder, existingText, existingImages);
+      return NoteEditorState.newNote(
+        notesFolder,
+        existingText,
+        existingImages,
+        newNoteExtraProps,
+      );
     } else {
       return NoteEditorState.fromNote(note);
     }
@@ -72,8 +81,9 @@ class NoteEditorState extends State<NoteEditor> {
     NotesFolderFS folder,
     String existingText,
     List<String> existingImages,
+    Map<String, dynamic> extraProps,
   ) {
-    note = Note.newNote(folder);
+    note = Note.newNote(folder, extraProps: extraProps);
     if (existingText != null) {
       note.body = existingText;
     }

lib/screens/tag_listing.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:gitjournal/core/flattened_notes_folder.dart';
 import 'package:gitjournal/core/note.dart';
+import 'package:gitjournal/core/note_serializer.dart';
 import 'package:gitjournal/core/notes_folder_fs.dart';
 import 'package:gitjournal/screens/folder_view.dart';
 import 'package:gitjournal/widgets/app_bar_menu_button.dart';
@@ -52,7 +53,13 @@ class TagListingScreen extends StatelessWidget {
               title: tag,
             );
 
-            return FolderView(notesFolder: folder);
+            final propNames = NoteSerializationSettings();
+            return FolderView(
+              notesFolder: folder,
+              newNoteExtraProps: {
+                propNames.tagsKey: [tag],
+              },
+            );
           },
           settings: const RouteSettings(name: '/tags/'),
         );