rustdesk/flutter/lib/common.dart
2022-08-01 12:17:38 +08:00

328 lines
9.4 KiB
Dart

import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'models/model.dart';
final globalKey = GlobalKey<NavigatorState>();
final navigationBarKey = GlobalKey();
var isAndroid = false;
var isIOS = false;
var isWeb = false;
var isDesktop = false;
var version = "";
int androidVersion = 0;
typedef F = String Function(String);
typedef FMethod = String Function(String, dynamic);
class Translator {
static late F call;
}
class MyTheme {
MyTheme._();
static const Color grayBg = Color(0xFFEEEEEE);
static const Color white = Color(0xFFFFFFFF);
static const Color accent = Color(0xFF0071FF);
static const Color accent50 = Color(0x770071FF);
static const Color accent80 = Color(0xAA0071FF);
static const Color canvasColor = Color(0xFF212121);
static const Color border = Color(0xFFCCCCCC);
static const Color idColor = Color(0xFF00B6F0);
static const Color darkGray = Color(0xFFB9BABC);
}
final ButtonStyle flatButtonStyle = TextButton.styleFrom(
minimumSize: Size(0, 36),
padding: EdgeInsets.symmetric(horizontal: 16.0, vertical: 10.0),
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(2.0)),
),
);
void showToast(String text, {Duration? duration}) {
SmartDialog.showToast(text, displayTime: duration);
}
void showLoading(String text, {bool clickMaskDismiss = false}) {
SmartDialog.dismiss();
SmartDialog.showLoading(
clickMaskDismiss: false,
builder: (context) {
return Container(
color: MyTheme.white,
constraints: BoxConstraints(maxWidth: 240),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
SizedBox(height: 30),
Center(child: CircularProgressIndicator()),
SizedBox(height: 20),
Center(
child: Text(Translator.call(text),
style: TextStyle(fontSize: 15))),
SizedBox(height: 20),
Center(
child: TextButton(
style: flatButtonStyle,
onPressed: () {
SmartDialog.dismiss();
backToHome();
},
child: Text(Translator.call('Cancel'),
style: TextStyle(color: MyTheme.accent))))
]));
});
}
backToHome() {
Navigator.popUntil(globalKey.currentContext!, ModalRoute.withName("/"));
}
typedef DialogBuilder = CustomAlertDialog Function(
StateSetter setState, void Function([dynamic]) close);
class DialogManager {
static int _tag = 0;
static dismissByTag(String tag, [result]) {
SmartDialog.dismiss(tag: tag, result: result);
}
static Future<T?> show<T>(DialogBuilder builder,
{bool clickMaskDismiss = false,
bool backDismiss = false,
String? tag,
bool useAnimation = true}) async {
final t;
if (tag != null) {
t = tag;
} else {
_tag += 1;
t = _tag.toString();
}
SmartDialog.dismiss(status: SmartStatus.allToast);
SmartDialog.dismiss(status: SmartStatus.loading);
final close = ([res]) {
SmartDialog.dismiss(tag: t, result: res);
};
final res = await SmartDialog.show<T>(
tag: t,
clickMaskDismiss: clickMaskDismiss,
backDismiss: backDismiss,
useAnimation: useAnimation,
builder: (_) => StatefulBuilder(
builder: (_, setState) => builder(setState, close)));
return res;
}
}
class CustomAlertDialog extends StatelessWidget {
CustomAlertDialog(
{required this.title,
required this.content,
required this.actions,
this.contentPadding});
final Widget title;
final Widget content;
final List<Widget> actions;
final double? contentPadding;
@override
Widget build(BuildContext context) {
return AlertDialog(
scrollable: true,
title: title,
contentPadding:
EdgeInsets.symmetric(horizontal: contentPadding ?? 25, vertical: 10),
content: content,
actions: actions,
);
}
}
void msgBox(String type, String title, String text, {bool? hasCancel}) {
var wrap = (String text, void Function() onPressed) => ButtonTheme(
padding: EdgeInsets.symmetric(horizontal: 20, vertical: 10),
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
//limits the touch area to the button area
minWidth: 0,
//wraps child's width
height: 0,
child: TextButton(
style: flatButtonStyle,
onPressed: onPressed,
child: Text(Translator.call(text),
style: TextStyle(color: MyTheme.accent))));
SmartDialog.dismiss();
final buttons = [
wrap(Translator.call('OK'), () {
SmartDialog.dismiss();
backToHome();
})
];
if (hasCancel == null) {
hasCancel = type != 'error';
}
if (hasCancel) {
buttons.insert(
0,
wrap(Translator.call('Cancel'), () {
SmartDialog.dismiss();
}));
}
DialogManager.show((setState, close) => CustomAlertDialog(
title: Text(translate(title), style: TextStyle(fontSize: 21)),
content: Text(Translator.call(text), style: TextStyle(fontSize: 15)),
actions: buttons));
}
Color str2color(String str, [alpha = 0xFF]) {
var hash = 160 << 16 + 114 << 8 + 91;
for (var i = 0; i < str.length; i += 1) {
hash = str.codeUnitAt(i) + ((hash << 5) - hash);
}
hash = hash % 16777216;
return Color((hash & 0xFF7FFF) | (alpha << 24));
}
const K = 1024;
const M = K * K;
const G = M * K;
String readableFileSize(double size) {
if (size < K) {
return size.toStringAsFixed(2) + " B";
} else if (size < M) {
return (size / K).toStringAsFixed(2) + " KB";
} else if (size < G) {
return (size / M).toStringAsFixed(2) + " MB";
} else {
return (size / G).toStringAsFixed(2) + " GB";
}
}
/// Flutter can't not catch PointerMoveEvent when size is 1
/// This will happen in Android AccessibilityService Input
/// android can't init dispatching size yet ,see: https://stackoverflow.com/questions/59960451/android-accessibility-dispatchgesture-is-it-possible-to-specify-pressure-for-a
/// use this temporary solution until flutter or android fixes the bug
class AccessibilityListener extends StatelessWidget {
final Widget? child;
static final offset = 100;
AccessibilityListener({this.child});
@override
Widget build(BuildContext context) {
return Listener(
onPointerDown: (evt) {
if (evt.size == 1) {
GestureBinding.instance.handlePointerEvent(PointerAddedEvent(
pointer: evt.pointer + offset, position: evt.position));
GestureBinding.instance.handlePointerEvent(PointerDownEvent(
pointer: evt.pointer + offset,
size: 0.1,
position: evt.position));
}
},
onPointerUp: (evt) {
if (evt.size == 1) {
GestureBinding.instance.handlePointerEvent(PointerUpEvent(
pointer: evt.pointer + offset,
size: 0.1,
position: evt.position));
GestureBinding.instance.handlePointerEvent(PointerRemovedEvent(
pointer: evt.pointer + offset, position: evt.position));
}
},
onPointerMove: (evt) {
if (evt.size == 1) {
GestureBinding.instance.handlePointerEvent(PointerMoveEvent(
pointer: evt.pointer + offset,
size: 0.1,
delta: evt.delta,
position: evt.position));
}
},
child: child);
}
}
class PermissionManager {
static Completer<bool>? _completer;
static Timer? _timer;
static var _current = "";
static final permissions = [
"audio",
"file",
"ignore_battery_optimizations",
"application_details_settings"
];
static bool isWaitingFile() {
if (_completer != null) {
return !_completer!.isCompleted && _current == "file";
}
return false;
}
static Future<bool> check(String type) {
if (!permissions.contains(type))
return Future.error("Wrong permission!$type");
return FFI.invokeMethod("check_permission", type);
}
static Future<bool> request(String type) {
if (!permissions.contains(type))
return Future.error("Wrong permission!$type");
FFI.invokeMethod("request_permission", type);
if (type == "ignore_battery_optimizations") {
return Future.value(false);
}
_current = type;
_completer = Completer<bool>();
// timeout
_timer?.cancel();
_timer = Timer(Duration(seconds: 60), () {
if (_completer == null) return;
if (!_completer!.isCompleted) {
_completer!.complete(false);
}
_completer = null;
_current = "";
});
return _completer!.future;
}
static complete(String type, bool res) {
if (type != _current) {
res = false;
}
_timer?.cancel();
_completer?.complete(res);
_current = "";
}
}
RadioListTile<T> getRadio<T>(
String name, T toValue, T curValue, void Function(T?) onChange) {
return RadioListTile<T>(
controlAffinity: ListTileControlAffinity.trailing,
title: Text(translate(name)),
value: toValue,
groupValue: curValue,
onChanged: onChange,
dense: true,
);
}