feat(flutter): 播放页长按手势与加速态

lib/l10n/app_en.arb

@@ -53,6 +53,12 @@
   "clearScreen": "Clear screen",
   "exitClearScreen": "Exit clear screen",
   "playbackSpeed": "Playback speed",
+  "speedBoosting": "{speed}x speed",
+  "@speedBoosting": {
+    "placeholders": {
+      "speed": {"type": "String"}
+    }
+  },
   "minutesAgo": "{count} min ago",
   "@minutesAgo": {
     "placeholders": {

lib/l10n/app_id.arb

@@ -53,6 +53,7 @@
   "clearScreen": "Bersihkan layar",
   "exitClearScreen": "Keluar dari layar bersih",
   "playbackSpeed": "Kecepatan putar",
+  "speedBoosting": "{speed}x kecepatan",
   "minutesAgo": "{count} mnt lalu",
   "@minutesAgo": {
     "placeholders": {

lib/l10n/app_localizations.dart

@@ -382,6 +382,12 @@ abstract class AppLocalizations {
   /// **'Playback speed'**
   String get playbackSpeed;
 
+  /// No description provided for @speedBoosting.
+  ///
+  /// In en, this message translates to:
+  /// **'{speed}x speed'**
+  String speedBoosting(String speed);
+
   /// No description provided for @minutesAgo.
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_en.dart

@@ -154,6 +154,11 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get playbackSpeed => 'Playback speed';
 
+  @override
+  String speedBoosting(String speed) {
+    return '${speed}x speed';
+  }
+
   @override
   String minutesAgo(int count) {
     return '$count min ago';

lib/l10n/app_localizations_id.dart

@@ -154,6 +154,11 @@ class AppLocalizationsId extends AppLocalizations {
   @override
   String get playbackSpeed => 'Kecepatan putar';
 
+  @override
+  String speedBoosting(String speed) {
+    return '${speed}x kecepatan';
+  }
+
   @override
   String minutesAgo(int count) {
     return '$count mnt lalu';

lib/l10n/app_localizations_zh.dart

@@ -151,6 +151,11 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get playbackSpeed => '倍速';
 
+  @override
+  String speedBoosting(String speed) {
+    return '$speed 倍速快进中';
+  }
+
   @override
   String minutesAgo(int count) {
     return '$count 分钟前';

lib/l10n/app_zh.arb

@@ -53,6 +53,7 @@
   "clearScreen": "清屏",
   "exitClearScreen": "退出清屏",
   "playbackSpeed": "倍速",
+  "speedBoosting": "{speed} 倍速快进中",
   "minutesAgo": "{count} 分钟前",
   "@minutesAgo": {
     "placeholders": {

lib/pages/player/player_view.dart

@@ -36,6 +36,8 @@ import '../../core/data/repositories/playback_repository.dart';
 
 part 'player_view_actions.dart';
 
+const double _boostPlaybackSpeed = 2.0;
+
 class PlayerPage extends StatefulWidget {
   const PlayerPage({
     super.key,
@@ -82,6 +84,9 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
   late final PlayerLogic logic;
   bool _chromeVisible = true;
   double _playbackSpeed = 1.0;
+  bool _boosting = false;
+  double? _speedBeforeBoost;
+  bool? _chromeBeforeBoost;
 
   /// 收藏切换后的本地增量：基准是详情快照，切换成功按服务端状态 ±1。
   final Map<String, int> _favoriteDelta = {};
@@ -130,6 +135,34 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
     setState(() => _chromeVisible = false);
   }
 
+  /// 长按两侧：切 2 倍速并清屏，记下进入前的状态用于松手恢复。
+  void _startBoost() {
+    if (_boosting) return;
+    setState(() {
+      _boosting = true;
+      _speedBeforeBoost = _playbackSpeed;
+      _chromeBeforeBoost = _chromeVisible;
+      _playbackSpeed = _boostPlaybackSpeed;
+      _chromeVisible = false;
+    });
+    unawaited(logic.setPlaybackSpeed(_boostPlaybackSpeed));
+  }
+
+  /// 松手或手势取消：恢复长按前的倍速与清屏状态。
+  void _endBoost() {
+    if (!_boosting) return;
+    final speed = _speedBeforeBoost ?? _playbackSpeed;
+    final chrome = _chromeBeforeBoost ?? true;
+    setState(() {
+      _boosting = false;
+      _speedBeforeBoost = null;
+      _chromeBeforeBoost = null;
+      _playbackSpeed = speed;
+      _chromeVisible = chrome;
+    });
+    unawaited(logic.setPlaybackSpeed(speed));
+  }
+
   /// 收藏状态确认后同步右侧计数（总数没有独立计数接口，按 ±1 跟随）。
   void _applyFavoriteDelta(String dramaId, {required bool nowSaved}) {
     setState(() {
@@ -397,6 +430,7 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
               playing: logic.session.userWantsPlay,
               playbackSpeed: _playbackSpeed,
               totalEpisodes: logic.visibleIndices.length,
+              boosting: _boosting,
             ),
             actions: PlayerOverlayActions(
               onBack: widget.embedded
@@ -419,6 +453,9 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
               onSeek: ready
                   ? (position) => logic.seekTo(context, videoPort!, position)
                   : null,
+              onLongPressCenter: () => _openMore(context, episode),
+              onBoostStart: _startBoost,
+              onBoostEnd: _endBoost,
             ),
             controlsVisible: _chromeVisible,
           ),

lib/pages/player/widgets/player_overlay.dart

@@ -16,6 +16,8 @@ const double _topButtonSize = 36;
 const double _topBarHeight = 58;
 const double _railButtonSize = 34;
 const double _railGap = 18;
+const double _boostHintIconSize = 16;
+const double _boostHintFontSize = 13;
 const List<Shadow> _playerTextShadows = [
   Shadow(color: Colors.black54, blurRadius: 5, offset: Offset(0, 1)),
 ];
@@ -45,10 +47,16 @@ class PlayerPlaybackOverlay extends StatelessWidget {
       child: Stack(
         children: [
           Positioned.fill(
-            child: GestureDetector(
+            child: LayoutBuilder(
-              key: const Key('player-video-tap'),
+              builder: (context, constraints) => GestureDetector(
-              behavior: HitTestBehavior.opaque,
+                key: const Key('player-video-tap'),
-              onTap: actions.onTogglePlay,
+                behavior: HitTestBehavior.opaque,
+                onTap: actions.onTogglePlay,
+                onLongPressStart: (details) =>
+                    _handleLongPressStart(details, constraints.maxWidth),
+                onLongPressEnd: (_) => actions.onBoostEnd(),
+                onLongPressCancel: actions.onBoostEnd,
+              ),
             ),
           ),
           _top(context),
@@ -120,6 +128,17 @@ class PlayerPlaybackOverlay extends StatelessWidget {
     );
   }
 
+  /// 长按分区：中间 1/3 弹更多，左右各 1/3 开始加速。
+  void _handleLongPressStart(LongPressStartDetails details, double width) {
+    final third = width / 3;
+    final dx = details.localPosition.dx;
+    if (dx < third || dx > width - third) {
+      actions.onBoostStart();
+      return;
+    }
+    actions.onLongPressCenter();
+  }
+
   Widget _rail(BuildContext context) {
     final compact = MediaQuery.sizeOf(context).height < 700;
     return Positioned(
@@ -149,6 +168,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
         mainAxisSize: MainAxisSize.min,
         children: [
           if (controlsVisible) _bottomInfo(context),
+          if (data.boosting) _boostHint(),
           _bottomProgress(),
           _bottomActions(),
         ],
@@ -156,6 +176,35 @@ class PlayerPlaybackOverlay extends StatelessWidget {
     );
   }
 
+  /// 加速提示：橙色小三角 + 当前倍速文案，悬在进度条上方。
+  Widget _boostHint() {
+    return Padding(
+      key: const Key('player-speed-boost-hint'),
+      padding: const EdgeInsets.only(bottom: 6),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          const Icon(
+            Icons.play_arrow_rounded,
+            color: AppColors.blue,
+            size: _boostHintIconSize,
+            shadows: _playerTextShadows,
+          ),
+          const SizedBox(width: 4),
+          Text(
+            data.l10n.speedBoosting(data.playbackSpeed.toStringAsFixed(1)),
+            style: const TextStyle(
+              color: AppColors.blue,
+              fontSize: _boostHintFontSize,
+              fontWeight: FontWeight.w700,
+              shadows: _playerTextShadows,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _bottomInfo(BuildContext context) {
     final series = localizedDramaTitle(data.l10n, data.drama);
     final synopsis = localizedDramaSynopsis(data.l10n, data.drama);

lib/pages/player/widgets/player_overlay_models.dart

@@ -22,6 +22,7 @@ class PlayerOverlayData {
     required this.playing,
     required this.playbackSpeed,
     required this.totalEpisodes,
+    required this.boosting,
     this.authorNote = '',
   });
 
@@ -61,6 +62,9 @@ class PlayerOverlayData {
   /// 可见集数量。
   final int totalEpisodes;
 
+  /// 是否处于长按加速态。
+  final bool boosting;
+
   /// 作者声明；没有后端字段时为空。
   final String authorNote;
 }
@@ -83,6 +87,9 @@ class PlayerOverlayActions {
     required this.onMore,
     required this.onScrubStart,
     required this.onSeek,
+    required this.onLongPressCenter,
+    required this.onBoostStart,
+    required this.onBoostEnd,
   });
 
   /// 返回上一页。
@@ -126,4 +133,13 @@ class PlayerOverlayActions {
 
   /// 提交进度跳转。
   final Future<void> Function(Duration)? onSeek;
+
+  /// 长按画面中间：弹出更多面板。
+  final VoidCallback onLongPressCenter;
+
+  /// 长按画面两侧：开始加速。
+  final VoidCallback onBoostStart;
+
+  /// 长按结束或取消：结束加速。
+  final VoidCallback onBoostEnd;
 }

test/player/player_fullscreen_test.dart

@@ -152,6 +152,102 @@ void main() {
     expect(find.byTooltip('Clear screen'), findsOneWidget);
   });
 
+  testWidgets('should_open_more_sheet_on_center_long_press', (tester) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+    expect(find.byKey(const Key('player-play-toggle')), findsNothing);
+
+    final gesture = await tester.startGesture(const Offset(195, 300));
+    await tester.pump(const Duration(milliseconds: 700));
+    await tester.pump();
+    await gesture.up();
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('player-more-sheet')), findsOneWidget);
+    await tester.tap(find.byKey(const Key('player-more-close')));
+    await tester.pumpAndSettle();
+    // 长按弹更多不改播放状态，仍处于播放中。
+    expect(find.byKey(const Key('player-play-toggle')), findsNothing);
+    expect(tester.takeException(), isNull);
+  });
+
+  testWidgets('should_boost_speed_on_side_long_press_and_restore', (
+    tester,
+  ) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+    expect(find.byKey(const Key('player-interaction-rail')), findsOneWidget);
+
+    final gesture = await tester.startGesture(const Offset(60, 300));
+    await tester.pump(const Duration(milliseconds: 700));
+    await tester.pump();
+
+    expect(find.byKey(const Key('player-speed-boost-hint')), findsOneWidget);
+    expect(find.byKey(const Key('player-progress')), findsOneWidget);
+    expect(find.byKey(const Key('player-interaction-rail')), findsNothing);
+    expect(find.byKey(const Key('player-controls-bottom')), findsNothing);
+    expect(
+      find.descendant(
+        of: find.byKey(const Key('player-speed-entry')),
+        matching: find.text('2.0x'),
+      ),
+      findsOneWidget,
+    );
+    // 加速与清屏都不改变播放状态。
+    expect(find.byKey(const Key('player-play-toggle')), findsNothing);
+
+    await gesture.up();
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('player-speed-boost-hint')), findsNothing);
+    expect(find.byKey(const Key('player-interaction-rail')), findsOneWidget);
+    expect(find.byKey(const Key('player-controls-bottom')), findsOneWidget);
+    expect(
+      find.descendant(
+        of: find.byKey(const Key('player-speed-entry')),
+        matching: find.text('1.0x'),
+      ),
+      findsOneWidget,
+    );
+    expect(find.byKey(const Key('player-play-toggle')), findsNothing);
+
+    // 右侧 1/3 同样触发加速。
+    final rightSide = await tester.startGesture(const Offset(330, 300));
+    await tester.pump(const Duration(milliseconds: 700));
+    await tester.pump();
+    expect(find.byKey(const Key('player-speed-boost-hint')), findsOneWidget);
+    await rightSide.up();
+    await tester.pumpAndSettle();
+    expect(find.byKey(const Key('player-speed-boost-hint')), findsNothing);
+  });
+
+  testWidgets('should_keep_previous_clear_state_after_boost', (tester) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+    await tester.tap(find.byKey(const Key('player-bottom-clear-screen')));
+    await tester.pumpAndSettle();
+    expect(find.byKey(const Key('player-interaction-rail')), findsNothing);
+
+    final gesture = await tester.startGesture(const Offset(60, 300));
+    await tester.pump(const Duration(milliseconds: 700));
+    await tester.pump();
+    expect(find.byKey(const Key('player-speed-boost-hint')), findsOneWidget);
+    await gesture.up();
+    await tester.pumpAndSettle();
+
+    // 本来已清屏，松手后仍保持清屏，只恢复倍速与提示。
+    expect(find.byKey(const Key('player-speed-boost-hint')), findsNothing);
+    expect(find.byKey(const Key('player-interaction-rail')), findsNothing);
+    expect(find.byTooltip('Exit clear screen'), findsOneWidget);
+    expect(
+      find.descendant(
+        of: find.byKey(const Key('player-speed-entry')),
+        matching: find.text('1.0x'),
+      ),
+      findsOneWidget,
+    );
+  });
+
   testWidgets('should_fit_player_header_on_320_width', (tester) async {
     await _pumpApp(tester, size: const Size(320, 568));
     await _openSeriesPlayer(tester);