input stub

src/main.dart

@@ -25,7 +25,12 @@ class GamePage extends StatelessWidget {
                                 for (final letter in guess)
                                     Tile(letter.char, letter.type)
                             ],
-                        )
+                        ),
+                    GuessInput(
+                        onSubmitGuess: (guess) {
+                            /**/print(guess);
+                        }
+                    ),
                 ],
             ),
         );
@@ -37,6 +42,9 @@ class GuessInput extends StatelessWidget {
 
     final void Function(String) onSubmitGuess;
 
+    final FocusNode _focusNode = FocusNode();
+    final TextEditingController _textEditingController = TextEditingController();
+
     @override
     Widget build(BuildContext context) {
         return Row(
@@ -44,12 +52,20 @@ class GuessInput extends StatelessWidget {
                 Expanded(
                     child: Padding(
                         child: TextField(
+                            autofocus: true,
+                            controller: _textEditingController,
                             decoration: InputDecoration(
                                 border: OutlineInputBorder(
                                     borderRadius: BorderRadius.all(Radius.circular(35)),
                                 ),
                             ),
+                            focusNode: _focusNode,
                             maxLength: 5,
+                            onSubmitted: (_) {
+                                onSubmitGuess(_textEditingController.text.trim());
+                                _textEditingController.clear();
+                                _focusNode.requestFocus();
+                            },
                         ),
                         padding: const EdgeInsets.all(8.0),
                     ),