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history controller fix for example code

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This commit is contained in:
Christien Rioux 2024-07-17 16:18:09 -04:00
parent 0d95aa0859
commit 9b6a30acbf
2 changed files with 8 additions and 76 deletions
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18
veilid-flutter/example/lib/app.dart
View File

@ -6,7 +6,7 @@ import 'package:flutter/material.dart';
import 'package:loggy/loggy.dart';
import 'package:veilid/veilid.dart';
import 'history_wrapper.dart';
import 'history_text_editing_controller.dart';
import 'log.dart';
import 'log_terminal.dart';
import 'veilid_theme.dart';
@ -24,13 +24,13 @@ class _MyAppState extends State<MyApp> with UiLoggy {
bool _startedUp = false;
Stream<VeilidUpdate>? _updateStream;
Future<void>? _updateProcessor;
final _debugHistoryWrapper = HistoryWrapper();
late final HistoryTextEditingController _historyController;
String? _errorText;
@override
void initState() {
super.initState();
_historyController = HistoryTextEditingController(setState: setState);
unawaited(initPlatformState());
}
@ -177,10 +177,10 @@ class _MyAppState extends State<MyApp> with UiLoggy {
padding: const EdgeInsets.all(5),
child: Row(children: [
Expanded(
child: pad(_debugHistoryWrapper.wrap(
setState,
child: pad(
TextField(
controller: _debugHistoryWrapper.controller,
controller: _historyController.controller,
focusNode: _historyController.focusNode,
decoration: newInputDecoration(
'Debug Command', _errorText, _startedUp),
textInputAction: TextInputAction.unspecified,
@ -197,16 +197,14 @@ class _MyAppState extends State<MyApp> with UiLoggy {
}
final res = await Veilid.instance.debug(v);
loggy.info(res);
setState(() {
_debugHistoryWrapper.submit(v);
});
_historyController.submit(v);
} on VeilidAPIException catch (e) {
setState(() {
_errorText = e.toDisplayError();
});
}
}),
))),
)),
pad(
Column(children: [
const Text('Startup'),

66
veilid-flutter/example/lib/history_wrapper.dart
View File

@ -1,66 +0,0 @@
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 => _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) {
final setState = stateSetter ?? (x) => x();
return KeyboardListener(
onKeyEvent: (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(onKeyEvent: (node, event) {
if (event.logicalKey == LogicalKeyboardKey.arrowDown ||
event.logicalKey == LogicalKeyboardKey.arrowUp) {
return KeyEventResult.handled;
}
return KeyEventResult.ignored;
}),
child: textField,
);
}
}