merge: 合并 K86.4 评论展开输入面板

lib/pages/player/widgets/drama_comments_sheet.dart

@@ -31,6 +31,8 @@ const double _headerHeight = 44;
 const double _replyIndent = 52;
 const double _composerTopGap = 8;
 const double _replyBannerHeight = 46;
+const double _expandedInputRadius = 12;
+const double _postButtonHeight = 32;
 
 /// 服务端评论底部弹窗：匿名列表、游标翻页、回复、举报和本人删除。
 class DramaCommentsSheet extends StatefulWidget {
@@ -54,6 +56,8 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
   @override
   void initState() {
     super.initState();
+    _inputFocus.addListener(_onFocusChanged);
+    _input.addListener(_onInputChanged);
     _comments = context.read<CommentRepository>();
     _controller = CommentController(
       comments: _comments,
@@ -66,12 +70,22 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
 
   @override
   void dispose() {
+    _inputFocus.removeListener(_onFocusChanged);
+    _input.removeListener(_onInputChanged);
     _controller.dispose();
     _input.dispose();
     _inputFocus.dispose();
     super.dispose();
   }
 
+  void _onFocusChanged() {
+    if (mounted) setState(() {});
+  }
+
+  void _onInputChanged() {
+    if (mounted) setState(() {});
+  }
+
   Future<void> _post() async {
     if (_controller.submitting) return;
     if (!await ensureSignedIn(context) || !mounted) return;
@@ -82,7 +96,7 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
     if (result.isSuccess) {
       _input.clear();
       setState(() => _replyTo = null);
-      FocusScope.of(context).unfocus();
+      _inputFocus.requestFocus();
       await _refreshCount();
       return;
     }
@@ -184,6 +198,9 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
     final maxHeight = screenLimit < _maxSheetHeight
         ? screenLimit
         : _maxSheetHeight;
+    if (_inputFocus.hasFocus) {
+      return _expandedComposer(context, maxHeight);
+    }
     return Container(
       key: const Key('player-comments-sheet'),
       decoration: const BoxDecoration(
@@ -215,6 +232,115 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
     );
   }
 
+  Widget _expandedComposer(BuildContext context, double maxHeight) {
+    final l10n = AppLocalizations.of(context)!;
+    final signedIn = context.watch<AuthController>().isSignedIn;
+    final hasContent = _input.text.trim().isNotEmpty;
+    final canPost = signedIn && hasContent && !_controller.submitting;
+    return AnimatedPadding(
+      duration: const Duration(milliseconds: 150),
+      curve: Curves.easeOut,
+      padding: EdgeInsets.only(bottom: MediaQuery.viewInsetsOf(context).bottom),
+      child: Container(
+        key: const Key('player-comments-sheet'),
+        decoration: const BoxDecoration(
+          color: AppColors.card,
+          borderRadius: BorderRadius.vertical(
+            top: Radius.circular(_sheetRadius),
+          ),
+        ),
+        child: SafeArea(
+          top: false,
+          child: ConstrainedBox(
+            constraints: BoxConstraints(maxHeight: maxHeight),
+            child: Padding(
+              padding: const EdgeInsets.fromLTRB(16, 12, 16, 12),
+              child: Column(
+                key: const Key('comment-expanded-composer'),
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: [
+                  if (_replyTo != null) _replyBanner(l10n, _replyTo!),
+                  Container(
+                    decoration: BoxDecoration(
+                      color: AppColors.commentInput,
+                      borderRadius: BorderRadius.circular(_expandedInputRadius),
+                    ),
+                    child: TextField(
+                      key: const Key('comment-input'),
+                      controller: _input,
+                      focusNode: _inputFocus,
+                      autofocus: true,
+                      readOnly: !signedIn,
+                      canRequestFocus: signedIn,
+                      minLines: 1,
+                      maxLines: 4,
+                      maxLength: _maxCommentLength,
+                      textAlignVertical: TextAlignVertical.top,
+                      style: const TextStyle(
+                        color: AppColors.cream,
+                        fontSize: 15,
+                      ),
+                      cursorColor: AppColors.blue,
+                      decoration: InputDecoration(
+                        hintText: l10n.writeComment,
+                        hintStyle: const TextStyle(
+                          color: AppColors.muted,
+                          fontSize: 14,
+                        ),
+                        counterText: '',
+                        contentPadding: const EdgeInsets.symmetric(
+                          horizontal: 16,
+                          vertical: 12,
+                        ),
+                        border: InputBorder.none,
+                        enabledBorder: InputBorder.none,
+                        focusedBorder: InputBorder.none,
+                      ),
+                      onTap: signedIn ? null : _authenticateForComment,
+                    ),
+                  ),
+                  const SizedBox(height: 12),
+                  Align(
+                    alignment: Alignment.centerRight,
+                    child: SizedBox(
+                      height: _postButtonHeight,
+                      child: TextButton(
+                        key: const Key('comment-post'),
+                        onPressed: canPost ? _post : null,
+                        style: TextButton.styleFrom(
+                          minimumSize: const Size(0, _postButtonHeight),
+                          padding: const EdgeInsets.symmetric(horizontal: 16),
+                          tapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                          backgroundColor: hasContent
+                              ? AppColors.blue.withValues(alpha: 0.12)
+                              : AppColors.raised,
+                          foregroundColor: AppColors.blue,
+                          disabledForegroundColor: AppColors.muted,
+                          disabledBackgroundColor: AppColors.raised,
+                          shape: RoundedRectangleBorder(
+                            borderRadius: BorderRadius.circular(8),
+                          ),
+                        ),
+                        child: Text(
+                          l10n.postComment,
+                          style: const TextStyle(
+                            fontSize: 14,
+                            fontWeight: FontWeight.w600,
+                          ),
+                        ),
+                      ),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
   Widget _content(BuildContext context, double maxHeight) {
     final l10n = AppLocalizations.of(context)!;
     final count = _serverCount ?? _controller.exactCount;
@@ -277,9 +403,7 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
               child: _list(l10n),
             ),
             if (_replyTo != null) _replyBanner(l10n, _replyTo!),
-            const SizedBox(
-              height: _composerHeight + _composerTopGap,
-            ),
+            const SizedBox(height: _composerHeight + _composerTopGap),
           ],
         ),
         Positioned(

test/comment/drama_comments_sheet_test.dart

@@ -220,7 +220,9 @@ void main() {
     },
   );
 
-  testWidgets('should_unfocus_input_after_successful_post', (tester) async {
+  testWidgets('should_clear_and_keep_input_focused_after_successful_post', (
+    tester,
+  ) async {
     final repository = FakeCommentRepository(
       pages: [const CommentPage()],
       publishResult: commentFixture(id: '11', content: 'Nice demo', mine: true),
@@ -233,13 +235,98 @@ void main() {
     await tester.pump();
     expect(tester.widget<TextField>(input).focusNode?.hasFocus, isTrue);
     await tester.enterText(input, 'Nice demo');
+    await tester.pump();
+    expect(
+      tester
+          .widget<TextButton>(find.byKey(const Key('comment-post')))
+          .onPressed,
+      isNotNull,
+    );
     await tester.tap(find.byKey(const Key('comment-post')));
     await tester.pumpAndSettle();
 
-    expect(tester.widget<TextField>(input).focusNode?.hasFocus, isFalse);
+    expect(tester.widget<TextField>(input).controller?.text, isEmpty);
+    expect(tester.widget<TextField>(input).focusNode?.hasFocus, isTrue);
+    expect(find.byKey(const Key('comment-expanded-composer')), findsOneWidget);
+    expect(find.byKey(const Key('comment-list')), findsNothing);
+    expect(
+      tester
+          .widget<TextButton>(find.byKey(const Key('comment-post')))
+          .onPressed,
+      isNull,
+    );
     expect(repository.countCalls, ['5', '5']);
   });
 
+  testWidgets('should_expand_composer_only_while_input_is_focused', (
+    tester,
+  ) async {
+    tester.view.physicalSize = const Size(390, 844);
+    tester.view.devicePixelRatio = 1;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+    addTearDown(tester.view.resetViewInsets);
+    final repository = FakeCommentRepository(
+      pages: [
+        CommentPage(
+          comments: [commentFixture(id: '10', content: 'A comment')],
+        ),
+      ],
+    );
+
+    await _pumpSheet(tester, repository: repository);
+    expect(find.byKey(const Key('comment-list')), findsOneWidget);
+
+    await tester.tap(find.byKey(const Key('comment-input')));
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('comment-list')), findsNothing);
+    expect(find.byKey(const Key('comment-count-label')), findsNothing);
+    expect(find.byKey(const Key('comment-composer')), findsNothing);
+    expect(find.byKey(const Key('comment-expanded-composer')), findsOneWidget);
+    final field = tester.widget<TextField>(
+      find.byKey(const Key('comment-input')),
+    );
+    expect(field.minLines, 1);
+    expect(field.maxLines, 4);
+    expect(field.style?.fontSize, 15);
+    expect(
+      tester
+          .widget<TextButton>(find.byKey(const Key('comment-post')))
+          .onPressed,
+      isNull,
+    );
+    expect(tester.getSize(find.byKey(const Key('comment-post'))).height, 32);
+    expect(find.byType(IconButton), findsNothing);
+    expect(find.byIcon(Icons.image_outlined), findsNothing);
+    expect(find.byIcon(Icons.emoji_emotions_outlined), findsNothing);
+    expect(find.byIcon(Icons.alternate_email_rounded), findsNothing);
+
+    await tester.enterText(find.byKey(const Key('comment-input')), 'Nice');
+    await tester.pump();
+    expect(
+      tester
+          .widget<TextButton>(find.byKey(const Key('comment-post')))
+          .onPressed,
+      isNotNull,
+    );
+
+    tester.view.viewInsets = const FakeViewPadding(bottom: 180);
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 160));
+    expect(
+      tester.getBottomLeft(find.byKey(const Key('player-comments-sheet'))).dy,
+      closeTo(844 - 180, 0.1),
+    );
+
+    tester.view.viewInsets = const FakeViewPadding();
+    FocusManager.instance.primaryFocus?.unfocus();
+    await tester.pumpAndSettle();
+    expect(find.byKey(const Key('comment-expanded-composer')), findsNothing);
+    expect(find.byKey(const Key('comment-list')), findsOneWidget);
+    expect(find.byKey(const Key('comment-composer')), findsOneWidget);
+  });
+
   testWidgets('should_use_polished_comment_sizes', (tester) async {
     final repository = FakeCommentRepository(
       pages: [
@@ -457,6 +544,8 @@ void main() {
     await tester.tap(find.byKey(const Key('comment-post')));
     await tester.pumpAndSettle();
 
+    FocusManager.instance.primaryFocus?.unfocus();
+    await tester.pumpAndSettle();
     expect(find.text('hello ***'), findsOneWidget);
     expect(find.text('Under review'), findsOneWidget);
     expect(haptics.lightImpacts, 1);
@@ -488,10 +577,13 @@ void main() {
     await tester.pump();
     expect(find.textContaining('Replying to'), findsOneWidget);
     await tester.enterText(find.byKey(const Key('comment-input')), 'My reply');
+    await tester.pump();
     await tester.tap(find.byKey(const Key('comment-post')));
     await tester.pumpAndSettle();
 
     expect(repository.publishCalls.single.parentId, '10');
+    FocusManager.instance.primaryFocus?.unfocus();
+    await tester.pumpAndSettle();
     expect(find.text('My reply'), findsOneWidget);
   });
 

test/widget_test.dart

@@ -249,8 +249,11 @@ void main() {
     await tester.pumpAndSettle();
     expect(find.text('No comments yet.'), findsOneWidget);
     await tester.enterText(find.byKey(const Key('comment-input')), 'Nice demo');
+    await tester.pump();
     await tester.tap(find.byKey(const Key('comment-post')));
     await tester.pumpAndSettle();
+    FocusManager.instance.primaryFocus?.unfocus();
+    await tester.pumpAndSettle();
     expect(find.text('Nice demo'), findsOneWidget);
     await tester.binding.handlePopRoute();
     await tester.pumpAndSettle();