70 lines
1.8 KiB
Dart
70 lines
1.8 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:window_manager/window_manager.dart';
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import '../providers/file_manager_provider.dart';
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import 'exit_hint_overlay.dart';
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import '../../services/desktop_service.dart';
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/// 手势处理 Mixin
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mixin GestureHandlerMixin<T extends StatefulWidget> on State<T> {
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DateTime? _lastSwipeTime;
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final ExitHintOverlay _exitHintOverlay = ExitHintOverlay();
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/// 处理滑动手势
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void handleSwipe(
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BuildContext context,
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FileManagerProvider fileManager,
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DragEndDetails details,
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) {
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if (details.primaryVelocity == null) return;
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// 从右往左滑（velocity < 0）：返回或退出
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if (details.primaryVelocity! < 0) {
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if (fileManager.currentPath == '/') {
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checkExitApp(context);
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} else {
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navigateBack(context, fileManager);
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}
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}
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}
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/// 处理返回键
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Future<void> handleBackPress(
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BuildContext context,
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FileManagerProvider fileManager,
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) async {
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if (fileManager.currentPath == '/') {
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await checkExitApp(context);
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} else {
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await navigateBack(context, fileManager);
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}
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}
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/// 返回上一级
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Future<void> navigateBack(
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BuildContext context,
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FileManagerProvider fileManager,
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) async {
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await fileManager.goBack();
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}
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/// 检查退出应用
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Future<void> checkExitApp(BuildContext context) async {
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final now = DateTime.now();
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if (_lastSwipeTime != null && now.difference(_lastSwipeTime!).inSeconds < 2) {
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_exitHintOverlay.remove();
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if (DesktopService.isDesktopPlatform) {
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await windowManager.hide();
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} else {
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SystemNavigator.pop();
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}
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} else {
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_lastSwipeTime = now;
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_exitHintOverlay.show(context);
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Future.delayed(const Duration(seconds: 2), () {
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_exitHintOverlay.remove();
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});
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}
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}
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}
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