fix(flutter): 更多面板增加小窗播放入口

lib/pages/player/player_view_actions.dart

@@ -35,6 +35,9 @@ extension _PlayerViewActions on _PlayerPageState {
           },
           onClear: _hideChrome,
           onDownload: () => requestEpisodeDownload(context, episode.id),
+          onPip: logic.pictureInPicture.isPlatformSupported
+              ? () => unawaited(logic.enterPip(context))
+              : null,
         ),
       ),
     );

lib/pages/player/widgets/player_more_sheet.dart

@@ -35,6 +35,7 @@ class PlayerMoreActions {
     required this.onSpeedChanged,
     required this.onClear,
     required this.onDownload,
+    this.onPip,
   });
 
   /// 倍速变化。
@@ -45,6 +46,9 @@ class PlayerMoreActions {
 
   /// 离线缓存当前集。
   final VoidCallback onDownload;
+
+  /// 进入小窗播放；平台不支持时为 null。
+  final VoidCallback? onPip;
 }
 
 /// K29.6 精简版播放页更多面板。
@@ -113,6 +117,13 @@ class _PlayerMoreSheetState extends State<PlayerMoreSheet> {
                 title: l10n.clearPlayback,
                 onTap: _clear,
               ),
+              if (widget.actions.onPip != null)
+                _actionRow(
+                  key: const Key('player-more-pip'),
+                  icon: Icons.picture_in_picture_alt_rounded,
+                  title: l10n.pictureInPicture,
+                  onTap: () => _closeThen(widget.actions.onPip!),
+                ),
               _actionRow(
                 key: const Key('player-more-offline'),
                 icon: Icons.download_rounded,

test/player/player_fullscreen_test.dart

@@ -389,7 +389,6 @@ void main() {
       Key('player-more-text-size'),
       Key('player-more-cast'),
       Key('player-more-timer'),
-      Key('player-more-pip'),
       Key('player-more-report'),
     ]) {
       expect(find.byKey(removed), findsNothing);
@@ -506,6 +505,30 @@ void main() {
     expect(find.text('720P · Unavailable'), findsOneWidget);
   });
 
+  testWidgets('should_show_pip_action_when_platform_supported', (tester) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+    await tester.tap(find.byKey(const Key('player-more')));
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('player-more-pip')), findsOneWidget);
+    expect(find.byKey(const Key('player-more-clear')), findsOneWidget);
+    expect(find.byKey(const Key('player-more-offline')), findsOneWidget);
+  }, variant: TargetPlatformVariant.only(TargetPlatform.android));
+
+  testWidgets('should_hide_pip_action_when_platform_unsupported', (
+    tester,
+  ) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+    await tester.tap(find.byKey(const Key('player-more')));
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('player-more-pip')), findsNothing);
+    expect(find.byKey(const Key('player-more-clear')), findsOneWidget);
+    expect(find.byKey(const Key('player-more-offline')), findsOneWidget);
+  }, variant: TargetPlatformVariant.only(TargetPlatform.macOS));
+
   testWidgets('should_enter_clear_screen_from_more_panel', (tester) async {
     await _pumpApp(tester);
     await _openSeriesPlayer(tester);

test/player/player_more_sheet_test.dart

@@ -0,0 +1,77 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:fruitshorts/l10n/app_localizations.dart';
+import 'package:fruitshorts/pages/player/widgets/player_more_sheet.dart';
+
+void main() {
+  testWidgets('should_hide_pip_row_when_platform_unsupported', (tester) async {
+    await _openSheet(tester);
+
+    expect(find.byKey(const Key('player-more-sheet')), findsOneWidget);
+    expect(find.byKey(const Key('player-more-clear')), findsOneWidget);
+    expect(find.byKey(const Key('player-more-offline')), findsOneWidget);
+    expect(find.byKey(const Key('player-more-pip')), findsNothing);
+  });
+
+  testWidgets('should_trigger_pip_and_close_sheet_when_tapped', (tester) async {
+    var pipCalls = 0;
+    await _openSheet(tester, onPip: () => pipCalls++);
+
+    expect(find.byKey(const Key('player-more-pip')), findsOneWidget);
+    expect(
+      tester.getTopLeft(find.byKey(const Key('player-more-clear'))).dy <
+          tester.getTopLeft(find.byKey(const Key('player-more-pip'))).dy,
+      isTrue,
+    );
+    expect(
+      tester.getTopLeft(find.byKey(const Key('player-more-pip'))).dy <
+          tester.getTopLeft(find.byKey(const Key('player-more-offline'))).dy,
+      isTrue,
+    );
+
+    await tester.tap(find.byKey(const Key('player-more-pip')));
+    await tester.pumpAndSettle();
+
+    expect(pipCalls, 1);
+    expect(find.byKey(const Key('player-more-sheet')), findsNothing);
+  });
+}
+
+Future<void> _openSheet(WidgetTester tester, {VoidCallback? onPip}) async {
+  await tester.pumpWidget(
+    MaterialApp(
+      supportedLocales: AppLocalizations.supportedLocales,
+      localizationsDelegates: AppLocalizations.localizationsDelegates,
+      home: Scaffold(
+        body: Builder(
+          builder: (context) => Center(
+            child: TextButton(
+              key: const Key('open-more-sheet'),
+              onPressed: () => showModalBottomSheet<void>(
+                context: context,
+                backgroundColor: Colors.transparent,
+                isScrollControlled: true,
+                builder: (_) => PlayerMoreSheet(
+                  l10n: AppLocalizations.of(context)!,
+                  state: const PlayerMoreState(speed: 1.0, qualities: ['AUTO']),
+                  actions: PlayerMoreActions(
+                    onSpeedChanged: (_) {},
+                    onClear: () {},
+                    onDownload: () {},
+                    onPip: onPip,
+                  ),
+                ),
+              ),
+              child: const Text('open'),
+            ),
+          ),
+        ),
+      ),
+    ),
+  );
+  await tester.tap(find.byKey(const Key('open-more-sheet')));
+  await tester.pumpAndSettle();
+}