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opt. proj struct

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LollipopKit
2023-01-29 16:56:40 +08:00
parent 49f9b0b179
commit f3c670d82c
15 changed files with 266 additions and 249 deletions
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8
lib/core/utils.dart
View File

@@ -1,6 +1,7 @@
import 'dart:async';
import 'dart:io';
import 'package:dartssh2/dartssh2.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:share_plus/share_plus.dart';
@@ -10,6 +11,13 @@ import 'package:toolbox/view/widget/card_dialog.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:toolbox/core/extension/stringx.dart';
/// Must put this func out of any Class.
/// Because of this function is called by [compute] in [ServerProvider.genClient].
/// https://stackoverflow.com/questions/51998995/invalid-arguments-illegal-argument-in-isolate-message-object-is-a-closure
List<SSHKeyPair> loadIndentity(String key) {
return SSHKeyPair.fromPem(key);
}
bool isDarkMode(BuildContext context) =>
Theme.of(context).brightness == Brightness.dark;

64
lib/data/model/server/cpu_status.dart
View File

@@ -1,19 +1,3 @@
get initOneTimeCpuStatus => OneTimeCpuStatus(
'cpu',
0,
0,
0,
0,
0,
0,
0,
);
get initCpuStatus => CpuStatus(
[initOneTimeCpuStatus],
[initOneTimeCpuStatus],
'',
);
class CpuStatus {
List<OneTimeCpuStatus> _pre;
List<OneTimeCpuStatus> _now;
@@ -107,3 +91,51 @@ class OneTimeCpuStatus {
int get total => user + sys + nice + idle + iowait + irq + softirq;
}
List<OneTimeCpuStatus> parseCPU(String raw) {
final List<OneTimeCpuStatus> cpus = [];
for (var item in raw.split('\n')) {
if (item == '') break;
final id = item.split(' ').first;
final matches = item.replaceFirst(id, '').trim().split(' ');
cpus.add(OneTimeCpuStatus(
id,
int.parse(matches[0]),
int.parse(matches[1]),
int.parse(matches[2]),
int.parse(matches[3]),
int.parse(matches[4]),
int.parse(matches[5]),
int.parse(matches[6])));
}
return cpus;
}
final cpuTempReg = RegExp(r'(x86_pkg_temp|cpu_thermal)');
String parseCPUTemp(List<String> segments) {
const noMatch = "/sys/class/thermal/thermal_zone*/type";
final type = segments[0];
final value = segments[1];
// Not support to get CPU temperature
if (value.contains(noMatch) ||
type.contains(noMatch) ||
value.isEmpty ||
type.isEmpty) {
return '';
}
final split = type.split('\n');
int idx = 0;
for (var item in split) {
if (item.contains(cpuTempReg)) {
break;
}
idx++;
}
final valueSplited = value.split('\n');
if (idx >= valueSplited.length) return '';
final temp = int.tryParse(valueSplited[idx].trim());
if (temp == null) return '';
return '${(temp / 1000).toStringAsFixed(1)}°C';
}

28
lib/data/model/server/memory.dart
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@@ -1,11 +1,3 @@
get initMemory => Memory(
total: 1,
used: 0,
free: 1,
cache: 0,
avail: 1,
);
class Memory {
int total;
int used;
@@ -19,3 +11,23 @@ class Memory {
required this.cache,
required this.avail});
}
final memItemReg = RegExp(r'([A-Z].+:)\s+([0-9]+) kB');
Memory parseMem(String raw) {
final items = raw.split('\n').map((e) => memItemReg.firstMatch(e)).toList();
final total = int.parse(
items.firstWhere((e) => e?.group(1) == 'MemTotal:')?.group(2) ?? '1');
final free = int.parse(
items.firstWhere((e) => e?.group(1) == 'MemFree:')?.group(2) ?? '0');
final cached = int.parse(
items.firstWhere((e) => e?.group(1) == 'Cached:')?.group(2) ?? '0');
final available = int.parse(
items.firstWhere((e) => e?.group(1) == 'MemAvailable:')?.group(2) ?? '0');
return Memory(
total: total,
used: total - available,
free: free,
cache: cached,
avail: available);
}

31
lib/data/model/server/net_speed.dart
View File

@@ -1,16 +1,5 @@
import 'package:toolbox/core/extension/numx.dart';
get initNetSpeedPart => NetSpeedPart(
'',
0,
0,
0,
);
get initNetSpeed => NetSpeed(
[initNetSpeedPart],
[initNetSpeedPart],
);
class NetSpeedPart {
String device;
int bytesIn;
@@ -69,3 +58,23 @@ class NetSpeed {
String buildStandardOutput(double speed) =>
'${speed.convertBytes.toLowerCase()}/s';
}
List<NetSpeedPart> parseNetSpeed(String raw) {
final split = raw.split('\n');
if (split.length < 4) {
return [];
}
final time = int.parse(split[split.length - 1]);
final results = <NetSpeedPart>[];
for (final item in split.sublist(2, split.length - 1)) {
final data = item.trim().split(':');
final device = data.first;
final bytes = data.last.trim().split(' ');
bytes.removeWhere((element) => element == '');
final bytesIn = int.parse(bytes.first);
final bytesOut = int.parse(bytes[8]);
results.add(NetSpeedPart(device, bytesIn, bytesOut, time));
}
return results;
}

10
lib/data/model/server/server_status.dart
View File

@@ -8,16 +8,6 @@ import 'package:toolbox/data/model/server/tcp_status.dart';
/// Code generated by jsonToDartModel https://ashamp.github.io/jsonToDartModel/
///
get initStatus => ServerStatus(
initCpuStatus,
initMemory,
'Loading...',
'',
[DiskInfo('/', '/', 0, '0', '0', '0')],
TcpStatus(0, 0, 0, 0),
initNetSpeed,
);
class ServerStatus {
/*
{

15
lib/data/model/server/tcp_status.dart
View File

@@ -1,3 +1,5 @@
import '../../../core/extension/stringx.dart';
///
/// Code generated by jsonToDartModel https://ashamp.github.io/jsonToDartModel/
///
@@ -39,3 +41,16 @@ class TcpStatus {
return data;
}
}
final numReg = RegExp(r'\s{1,}');
TcpStatus? parseTcp(String raw) {
final lines = raw.split('\n');
final idx = lines.lastWhere((element) => element.startsWith('Tcp:'),
orElse: () => '');
if (idx != '') {
final vals = idx.split(numReg);
return TcpStatus(vals[5].i, vals[6].i, vals[7].i, vals[8].i);
}
return null;
}

26
lib/data/model/ssh/virtual_key.dart Normal file
View File

@@ -0,0 +1,26 @@
import 'package:flutter/material.dart';
import 'package:xterm/core.dart';
class VirtualKey {
final TerminalKey key;
final String text;
final bool toggleable;
final IconData? icon;
VirtualKey(this.key, this.text, {this.toggleable = false, this.icon});
}
var virtualKeys = [
VirtualKey(TerminalKey.escape, 'Esc'),
VirtualKey(TerminalKey.alt, 'Alt', toggleable: true),
VirtualKey(TerminalKey.pageUp, 'PgUp'),
VirtualKey(TerminalKey.arrowUp, 'Up', icon: Icons.arrow_upward),
VirtualKey(TerminalKey.pageDown, 'PgDn'),
VirtualKey(TerminalKey.end, 'End'),
VirtualKey(TerminalKey.tab, 'Tab'),
VirtualKey(TerminalKey.control, 'Ctrl', toggleable: true),
VirtualKey(TerminalKey.arrowLeft, 'Left', icon: Icons.arrow_back),
VirtualKey(TerminalKey.arrowDown, 'Down', icon: Icons.arrow_downward),
VirtualKey(TerminalKey.arrowRight, 'Right', icon: Icons.arrow_forward),
VirtualKey(TerminalKey.home, 'Home'),
];

144
lib/data/provider/server.dart
View File

@@ -3,29 +3,23 @@ import 'dart:async';
import 'package:dartssh2/dartssh2.dart';
import 'package:flutter/foundation.dart';
import 'package:logging/logging.dart';
import 'package:toolbox/core/extension/stringx.dart';
import 'package:toolbox/core/extension/uint8list.dart';
import 'package:toolbox/core/provider_base.dart';
import 'package:toolbox/data/model/server/cpu_status.dart';
import 'package:toolbox/data/model/server/memory.dart';
import 'package:toolbox/data/model/server/net_speed.dart';
import 'package:toolbox/data/model/server/disk_info.dart';
import 'package:toolbox/data/model/server/server.dart';
import 'package:toolbox/data/model/server/server_private_info.dart';
import 'package:toolbox/data/model/server/server_status.dart';
import 'package:toolbox/data/model/server/snippet.dart';
import 'package:toolbox/data/model/server/tcp_status.dart';
import 'package:toolbox/data/store/private_key.dart';
import 'package:toolbox/data/store/server.dart';
import 'package:toolbox/data/store/setting.dart';
import 'package:toolbox/locator.dart';
/// Must put this func out of any Class.
/// Because of this function is called by [compute] in [ServerProvider.genClient].
/// https://stackoverflow.com/questions/51998995/invalid-arguments-illegal-argument-in-isolate-message-object-is-a-closure
List<SSHKeyPair> loadIndentity(String key) {
return SSHKeyPair.fromPem(key);
}
import '../../core/extension/uint8list.dart';
import '../../core/provider_base.dart';
import '../../core/utils.dart';
import '../../locator.dart';
import '../model/server/cpu_status.dart';
import '../model/server/disk_info.dart';
import '../model/server/memory.dart';
import '../model/server/net_speed.dart';
import '../model/server/server.dart';
import '../model/server/server_private_info.dart';
import '../model/server/snippet.dart';
import '../model/server/tcp_status.dart';
import '../res/status.dart';
import '../store/private_key.dart';
import '../store/server.dart';
import '../store/setting.dart';
const seperator = 'A====A';
const shellCmd = "export LANG=en_US.utf-8 \necho '$seperator' \n"
@@ -39,9 +33,6 @@ const shellCmd = "export LANG=en_US.utf-8 \necho '$seperator' \n"
"cat /sys/class/thermal/thermal_zone*/type \necho $seperator \n"
"cat /sys/class/thermal/thermal_zone*/temp";
const shellPath = '.serverbox.sh';
final cpuTempReg = RegExp(r'(x86_pkg_temp|cpu_thermal)');
final numReg = RegExp(r'\s{1,}');
final memItemReg = RegExp(r'([A-Z].+:)\s+([0-9]+) kB');
class ServerProvider extends BusyProvider {
List<Server> _servers = [];
@@ -221,7 +212,7 @@ class ServerProvider extends BusyProvider {
/// 1635752901
Future<void> _getNetSpeed(ServerPrivateInfo spi, String raw) async {
final info = _servers.firstWhere((e) => e.spi == spi);
info.status.netSpeed.update(await compute(_parseNetSpeed, raw));
info.status.netSpeed.update(await compute(parseNetSpeed, raw));
}
void _getSysVer(ServerPrivateInfo spi, String raw) {
@@ -235,11 +226,11 @@ class ServerProvider extends BusyProvider {
Future<void> _getCPU(ServerPrivateInfo spi, String raw, String tempType,
String tempValue) async {
final info = _servers.firstWhere((e) => e.spi == spi);
final cpus = await compute(_parseCPU, raw);
final cpus = await compute(parseCPU, raw);
if (cpus.isNotEmpty) {
info.status.cpu
.update(cpus, await compute(_getCPUTemp, [tempType, tempValue]));
.update(cpus, await compute(parseCPUTemp, [tempType, tempValue]));
}
}
@@ -250,7 +241,7 @@ class ServerProvider extends BusyProvider {
Future<void> _getTcp(ServerPrivateInfo spi, String raw) async {
final info = _servers.firstWhere((e) => e.spi == spi);
final status = await compute(_parseTcp, raw);
final status = await compute(parseTcp, raw);
if (status != null) {
info.status.tcp = status;
}
@@ -273,7 +264,7 @@ class ServerProvider extends BusyProvider {
Future<void> _getMem(ServerPrivateInfo spi, String raw) async {
final info = _servers.firstWhere((e) => e.spi == spi);
final mem = await compute(_parseMem, raw);
final mem = await compute(parseMem, raw);
info.status.mem = mem;
}
@@ -286,96 +277,3 @@ class ServerProvider extends BusyProvider {
return await client.run(snippet.script).string;
}
}
Memory _parseMem(String raw) {
final items = raw.split('\n').map((e) => memItemReg.firstMatch(e)).toList();
final total = int.parse(
items.firstWhere((e) => e?.group(1) == 'MemTotal:')?.group(2) ?? '1');
final free = int.parse(
items.firstWhere((e) => e?.group(1) == 'MemFree:')?.group(2) ?? '0');
final cached = int.parse(
items.firstWhere((e) => e?.group(1) == 'Cached:')?.group(2) ?? '0');
final available = int.parse(
items.firstWhere((e) => e?.group(1) == 'MemAvailable:')?.group(2) ?? '0');
return Memory(
total: total,
used: total - available,
free: free,
cache: cached,
avail: available);
}
TcpStatus? _parseTcp(String raw) {
final lines = raw.split('\n');
final idx = lines.lastWhere((element) => element.startsWith('Tcp:'),
orElse: () => '');
if (idx != '') {
final vals = idx.split(numReg);
return TcpStatus(vals[5].i, vals[6].i, vals[7].i, vals[8].i);
}
return null;
}
List<OneTimeCpuStatus> _parseCPU(String raw) {
final List<OneTimeCpuStatus> cpus = [];
for (var item in raw.split('\n')) {
if (item == '') break;
final id = item.split(' ').first;
final matches = item.replaceFirst(id, '').trim().split(' ');
cpus.add(OneTimeCpuStatus(
id,
int.parse(matches[0]),
int.parse(matches[1]),
int.parse(matches[2]),
int.parse(matches[3]),
int.parse(matches[4]),
int.parse(matches[5]),
int.parse(matches[6])));
}
return cpus;
}
String _getCPUTemp(List<String> segments) {
const noMatch = "/sys/class/thermal/thermal_zone*/type";
final type = segments[0];
final value = segments[1];
// Not support to get CPU temperature
if (value.contains(noMatch) ||
type.contains(noMatch) ||
value.isEmpty ||
type.isEmpty) {
return '';
}
final split = type.split('\n');
int idx = 0;
for (var item in split) {
if (item.contains(cpuTempReg)) {
break;
}
idx++;
}
final valueSplited = value.split('\n');
if (idx >= valueSplited.length) return '';
final temp = int.tryParse(valueSplited[idx].trim());
if (temp == null) return '';
return '${(temp / 1000).toStringAsFixed(1)}°C';
}
List<NetSpeedPart> _parseNetSpeed(String raw) {
final split = raw.split('\n');
final deviceCount = split.length - 3;
if (deviceCount < 1) return [];
final time = int.parse(split[split.length - 1]);
final results = <NetSpeedPart>[];
for (int idx = 2; idx < deviceCount; idx++) {
final data = split[idx].trim().split(':');
final device = data.first;
final bytes = data.last.trim().split(' ');
bytes.removeWhere((element) => element == '');
final bytesIn = int.parse(bytes.first);
final bytesOut = int.parse(bytes[8]);
results.add(NetSpeedPart(device, bytesIn, bytesOut, time));
}
return results;
}

29
lib/data/provider/virtual_keyboard.dart Normal file
View File

@@ -0,0 +1,29 @@
import 'package:flutter/widgets.dart';
import 'package:xterm/core.dart';
class VirtualKeyboard extends TerminalInputHandler with ChangeNotifier {
VirtualKeyboard();
bool ctrl = false;
bool alt = false;
void reset(TerminalKeyboardEvent e) {
if (e.ctrl) {
ctrl = false;
}
if (e.alt) {
alt = false;
}
notifyListeners();
}
@override
String? call(TerminalKeyboardEvent event) {
final e = event.copyWith(
ctrl: event.ctrl || ctrl,
alt: event.alt || alt,
);
reset(e);
return defaultInputHandler.call(e);
}
}

48
lib/data/res/status.dart Normal file
View File

@@ -0,0 +1,48 @@
import '../model/server/cpu_status.dart';
import '../model/server/disk_info.dart';
import '../model/server/memory.dart';
import '../model/server/net_speed.dart';
import '../model/server/server_status.dart';
import '../model/server/tcp_status.dart';
get _initMemory => Memory(
total: 1,
used: 0,
free: 1,
cache: 0,
avail: 1,
);
get _initOneTimeCpuStatus => OneTimeCpuStatus(
'cpu',
0,
0,
0,
0,
0,
0,
0,
);
get initCpuStatus => CpuStatus(
[_initOneTimeCpuStatus],
[_initOneTimeCpuStatus],
'',
);
get _initNetSpeedPart => NetSpeedPart(
'',
0,
0,
0,
);
get initNetSpeed => NetSpeed(
[_initNetSpeedPart],
[_initNetSpeedPart],
);
get initStatus => ServerStatus(
initCpuStatus,
_initMemory,
'Loading...',
'',
[DiskInfo('/', '/', 0, '0', '0', '0')],
TcpStatus(0, 0, 0, 0),
initNetSpeed,
);

3
lib/locator.dart
View File

@@ -14,6 +14,8 @@ import 'package:toolbox/data/store/server.dart';
import 'package:toolbox/data/store/setting.dart';
import 'package:toolbox/data/store/snippet.dart';
import 'data/provider/virtual_keyboard.dart';
GetIt locator = GetIt.instance;
void setupLocatorForServices() {
@@ -26,6 +28,7 @@ void setupLocatorForProviders() {
locator.registerSingleton(DebugProvider());
locator.registerSingleton(DockerProvider());
locator.registerSingleton(ServerProvider());
locator.registerSingleton(VirtualKeyboard());
locator.registerSingleton(SnippetProvider());
locator.registerSingleton(PrivateKeyProvider());
locator.registerSingleton(SftpDownloadProvider());

51
lib/main.dart
View File

@@ -4,30 +4,26 @@ import 'package:flutter/material.dart';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:logging/logging.dart';
import 'package:provider/provider.dart';
import 'package:toolbox/app.dart';
import 'package:toolbox/core/analysis.dart';
import 'package:toolbox/core/persistant_store.dart';
import 'package:toolbox/data/model/server/private_key_info.dart';
import 'package:toolbox/data/model/server/server_private_info.dart';
import 'package:toolbox/data/model/server/snippet.dart';
import 'package:toolbox/data/provider/app.dart';
import 'package:toolbox/data/provider/pkg.dart';
import 'package:toolbox/data/provider/debug.dart';
import 'package:toolbox/data/provider/docker.dart';
import 'package:toolbox/data/provider/private_key.dart';
import 'package:toolbox/data/provider/server.dart';
import 'package:toolbox/data/provider/sftp_download.dart';
import 'package:toolbox/data/provider/snippet.dart';
import 'package:toolbox/data/store/private_key.dart';
import 'package:toolbox/data/store/server.dart';
import 'package:toolbox/data/store/setting.dart';
import 'package:toolbox/data/store/snippet.dart';
import 'package:toolbox/locator.dart';
import 'app.dart';
import 'core/analysis.dart';
import 'data/model/server/private_key_info.dart';
import 'data/model/server/server_private_info.dart';
import 'data/model/server/snippet.dart';
import 'data/provider/app.dart';
import 'data/provider/debug.dart';
import 'data/provider/docker.dart';
import 'data/provider/pkg.dart';
import 'data/provider/private_key.dart';
import 'data/provider/server.dart';
import 'data/provider/sftp_download.dart';
import 'data/provider/snippet.dart';
import 'data/provider/virtual_keyboard.dart';
import 'locator.dart';
Future<void> initApp() async {
await initHive();
await setupLocator();
await upgradeStore();
locator<SnippetProvider>().loadData();
locator<PrivateKeyProvider>().loadData();
@@ -47,20 +43,6 @@ Future<void> initHive() async {
Hive.registerAdapter(ServerPrivateInfoAdapter());
}
Future<void> upgradeStore() async {
final setting = locator<SettingStore>();
final version = setting.storeVersion.fetch();
if (version == 0) {
final snippet = locator<SnippetStore>();
final key = locator<PrivateKeyStore>();
final spi = locator<ServerStore>();
for (final s in <PersistentStore>[snippet, key, spi]) {
await s.box.deleteAll(s.box.keys);
}
setting.storeVersion.put(1);
}
}
void runInZone(dynamic Function() body) {
final zoneSpec = ZoneSpecification(
print: (Zone self, ZoneDelegate parent, Zone zone, String line) {
@@ -101,6 +83,7 @@ Future<void> main() async {
ChangeNotifierProvider(create: (_) => locator<DockerProvider>()),
ChangeNotifierProvider(create: (_) => locator<ServerProvider>()),
ChangeNotifierProvider(create: (_) => locator<SnippetProvider>()),
ChangeNotifierProvider(create: (_) => locator<VirtualKeyboard>()),
ChangeNotifierProvider(create: (_) => locator<PrivateKeyProvider>()),
ChangeNotifierProvider(
create: (_) => locator<SftpDownloadProvider>()),

6
lib/view/page/server/tab.dart
View File

@@ -388,8 +388,10 @@ class _ServerPageState extends State<ServerPage>
child: Text(_s.ok),
),
TextButton(
onPressed: () =>
AppRoute(const SnippetEditPage(), 'edit snippet').go(context),
onPressed: () {
Navigator.of(context).pop();
AppRoute(const SnippetEditPage(), 'edit snippet').go(context);
},
child: Text(_s.addOne),
)
],

2
lib/view/page/sftp/view.dart
View File

@@ -71,7 +71,7 @@ class _SFTPPageState extends State<SFTPPage> {
],
),
body: _buildFileView(),
bottomNavigationBar: _buildBottom(),
bottomNavigationBar: SafeArea(child: _buildBottom()),
);
}

50
lib/view/page/ssh.dart
View File

@@ -4,11 +4,13 @@ import 'package:dartssh2/dartssh2.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:xterm/xterm.dart';
import '../../core/utils.dart';
import '../../data/model/server/server_private_info.dart';
import '../../data/provider/server.dart';
import '../../data/model/ssh/virtual_key.dart';
import '../../data/provider/virtual_keyboard.dart';
import '../../data/res/terminal_theme.dart';
import '../../data/store/private_key.dart';
import '../../locator.dart';
@@ -24,7 +26,7 @@ class SSHPage extends StatefulWidget {
class _SSHPageState extends State<SSHPage> {
late final terminal = Terminal(inputHandler: keyboard);
late final SSHClient client;
final keyboard = VirtualKeyboard(defaultInputHandler);
final keyboard = locator<VirtualKeyboard>();
late double _screenWidth;
var isDark = false;
@@ -99,7 +101,8 @@ class _SSHPageState extends State<SSHPage> {
keyboardAppearance: isDark ? Brightness.dark : Brightness.light,
),
),
_buildVirtualKey(),
Consumer<VirtualKeyboard>(
builder: (_, __, ___) => _buildVirtualKey()),
],
),
);
@@ -189,44 +192,3 @@ Future<SSHClient> genClient(ServerPrivateInfo spi) async {
identities: await compute(loadIndentity, key.privateKey),
);
}
class VirtualKey {
final TerminalKey key;
final String text;
final bool toggleable;
final IconData? icon;
VirtualKey(this.key, this.text, {this.toggleable = false, this.icon});
}
var virtualKeys = [
VirtualKey(TerminalKey.escape, 'Esc'),
VirtualKey(TerminalKey.alt, 'Alt', toggleable: true),
VirtualKey(TerminalKey.pageUp, 'PgUp'),
VirtualKey(TerminalKey.arrowUp, 'Up', icon: Icons.arrow_upward),
VirtualKey(TerminalKey.pageDown, 'PgDn'),
VirtualKey(TerminalKey.end, 'End'),
VirtualKey(TerminalKey.tab, 'Tab'),
VirtualKey(TerminalKey.control, 'Ctrl', toggleable: true),
VirtualKey(TerminalKey.arrowLeft, 'Left', icon: Icons.arrow_back),
VirtualKey(TerminalKey.arrowDown, 'Down', icon: Icons.arrow_downward),
VirtualKey(TerminalKey.arrowRight, 'Right', icon: Icons.arrow_forward),
VirtualKey(TerminalKey.home, 'Home'),
];
class VirtualKeyboard extends TerminalInputHandler with ChangeNotifier {
final TerminalInputHandler inputHandler;
VirtualKeyboard(this.inputHandler);
bool ctrl = false;
bool alt = false;
@override
String? call(TerminalKeyboardEvent event) {
return inputHandler.call(event.copyWith(
ctrl: event.ctrl || ctrl,
alt: event.alt || alt,
));
}
}