69 lines
2.3 KiB
Dart
69 lines
2.3 KiB
Dart
|
import 'package:flutter/material.dart';
|
||
|
|
import 'package:flutter/services.dart';
|
||
|
|
|
||
|
|
// TextField History Wrapper
|
||
|
|
class HistoryWrapper {
|
||
|
|
final List<String> _history = [];
|
||
|
|
int _historyPosition = 0;
|
||
|
|
final _historyTextEditingController = TextEditingController();
|
||
|
|
String _historyCurrentEdit = "";
|
||
|
|
|
||
|
|
TextEditingController get controller {
|
||
|
|
return _historyTextEditingController;
|
||
|
|
}
|
||
|
|
|
||
|
|
void submit(String v) {
|
||
|
|
// add to history
|
||
|
|
if (_history.isEmpty || _history.last != v) {
|
||
|
|
_history.add(v);
|
||
|
|
if (_history.length > 100) {
|
||
|
|
_history.removeAt(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
_historyPosition = _history.length;
|
||
|
|
_historyTextEditingController.text = "";
|
||
|
|
}
|
||
|
|
|
||
|
|
Widget wrap(
|
||
|
|
void Function(void Function())? stateSetter, TextField textField) {
|
||
|
|
void Function(void Function()) setState = stateSetter ?? (x) => x();
|
||
|
|
return KeyboardListener(
|
||
|
|
onKeyEvent: (KeyEvent event) {
|
||
|
|
setState(() {
|
||
|
|
if (event.runtimeType == KeyDownEvent &&
|
||
|
|
event.logicalKey == LogicalKeyboardKey.arrowUp) {
|
||
|
|
if (_historyPosition > 0) {
|
||
|
|
if (_historyPosition == _history.length) {
|
||
|
|
_historyCurrentEdit = _historyTextEditingController.text;
|
||
|
|
}
|
||
|
|
_historyPosition -= 1;
|
||
|
|
_historyTextEditingController.text = _history[_historyPosition];
|
||
|
|
}
|
||
|
|
} else if (event.runtimeType == KeyDownEvent &&
|
||
|
|
event.logicalKey == LogicalKeyboardKey.arrowDown) {
|
||
|
|
if (_historyPosition < _history.length) {
|
||
|
|
_historyPosition += 1;
|
||
|
|
if (_historyPosition == _history.length) {
|
||
|
|
_historyTextEditingController.text = _historyCurrentEdit;
|
||
|
|
} else {
|
||
|
|
_historyTextEditingController.text = _history[_historyPosition];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (event.runtimeType == KeyDownEvent) {
|
||
|
|
_historyPosition = _history.length;
|
||
|
|
_historyCurrentEdit = _historyTextEditingController.text;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
focusNode: FocusNode(onKey: (FocusNode node, RawKeyEvent event) {
|
||
|
|
if (event.logicalKey == LogicalKeyboardKey.arrowDown ||
|
||
|
|
event.logicalKey == LogicalKeyboardKey.arrowUp) {
|
||
|
|
return KeyEventResult.handled;
|
||
|
|
}
|
||
|
|
return KeyEventResult.ignored;
|
||
|
|
}),
|
||
|
|
child: textField,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|