feat: implement comment blocking based on user-defined keywords

assets/translation.json

@@ -103,6 +103,7 @@
     "Show favorite status on comic tile": "在漫画缩略图上显示收藏状态",
     "Show history on comic tile": "在漫画缩略图上显示历史记录",
     "Keyword blocking": "关键词屏蔽",
+    "Comment keyword blocking": "评论关键词屏蔽",
     "Tap to turn Pages": "点击翻页",
     "Page animation": "页面动画",
     "Reading mode": "阅读模式",
@@ -529,6 +530,7 @@
     "Show favorite status on comic tile": "在漫畫縮圖上顯示收藏狀態",
     "Show history on comic tile": "在漫畫縮圖上顯示歷史記錄",
     "Keyword blocking": "關鍵字封鎖",
+    "Comment keyword blocking": "評論關鍵字封鎖",
     "Tap to turn Pages": "點擊翻頁",
     "Page animation": "頁面動畫",
     "Reading mode": "閱讀模式",

lib/foundation/appdata.dart

@@ -180,6 +180,7 @@ class Settings with ChangeNotifier {
     'showFavoriteStatusOnTile': true,
     'showHistoryStatusOnTile': false,
     'blockedWords': [],
+    'blockedCommentWords': [],
     'defaultSearchTarget': null,
     'autoPageTurningInterval': 5, // in seconds
     'readerMode': 'galleryLeftToRight', // values of [ReaderMode]

lib/pages/comic_details_page/comments_page.dart

@@ -1,5 +1,18 @@
 part of 'comic_page.dart';
 
+bool _shouldBlockComment(Comment comment) {
+  var blockedWords = appdata.settings["blockedCommentWords"] as List;
+  if (blockedWords.isEmpty) return false;
+  
+  var content = comment.content.toLowerCase();
+  for (var word in blockedWords) {
+    if (content.contains(word.toString().toLowerCase())) {
+      return true;
+    }
+  }
+  return false;
+}
+
 class CommentsPage extends StatefulWidget {
   const CommentsPage({
     super.key,
@@ -36,8 +49,9 @@ class _CommentsPageState extends State<CommentsPage> {
         _loading = false;
       });
     } else if (mounted) {
+      var filteredComments = res.data.where((c) => !_shouldBlockComment(c)).toList();
       setState(() {
-        _comments = res.data;
+        _comments = filteredComments;
         _loading = false;
         maxPage = res.subData;
       });
@@ -54,8 +68,9 @@ class _CommentsPageState extends State<CommentsPage> {
     if (res.error) {
       context.showMessage(message: res.errorMessage ?? "Unknown Error");
     } else {
+      var filteredComments = res.data.where((c) => !_shouldBlockComment(c)).toList();
       setState(() {
-        _comments!.addAll(res.data);
+        _comments!.addAll(filteredComments);
         _page++;
         if (maxPage == null && res.data.isEmpty) {
           maxPage = _page;

lib/pages/comic_details_page/comments_preview.dart

@@ -21,7 +21,7 @@ class _CommentsPartState extends State<_CommentsPart> {
 
   @override
   void initState() {
-    comments = widget.comments;
+    comments = widget.comments.where((c) => !_shouldBlockComment(c)).toList();
     super.initState();
   }
 

lib/pages/reader/chapter_comments.dart

@@ -1,5 +1,18 @@
 part of 'reader.dart';
 
+bool _shouldBlockComment(Comment comment) {
+  var blockedWords = appdata.settings["blockedCommentWords"] as List;
+  if (blockedWords.isEmpty) return false;
+  
+  var content = comment.content.toLowerCase();
+  for (var word in blockedWords) {
+    if (content.contains(word.toString().toLowerCase())) {
+      return true;
+    }
+  }
+  return false;
+}
+
 class ChapterCommentsPage extends StatefulWidget {
   const ChapterCommentsPage({
     super.key,
@@ -44,8 +57,9 @@ class _ChapterCommentsPageState extends State<ChapterCommentsPage> {
         _loading = false;
       });
     } else if (mounted) {
+      var filteredComments = res.data.where((c) => !_shouldBlockComment(c)).toList();
       setState(() {
-        _comments = res.data;
+        _comments = filteredComments;
         _loading = false;
         maxPage = res.subData;
       });
@@ -62,8 +76,9 @@ class _ChapterCommentsPageState extends State<ChapterCommentsPage> {
     if (res.error) {
       context.showMessage(message: res.errorMessage ?? "Unknown Error");
     } else {
+      var filteredComments = res.data.where((c) => !_shouldBlockComment(c)).toList();
       setState(() {
-        _comments!.addAll(res.data);
+        _comments!.addAll(filteredComments);
         _page++;
         if (maxPage == null && res.data.isEmpty) {
           maxPage = _page;

lib/pages/settings/explore_settings.dart

@@ -60,6 +60,10 @@ class _ExploreSettingsState extends State<ExploreSettings> {
           title: "Keyword blocking".tl,
           builder: () => const _ManageBlockingWordView(),
         ).toSliver(),
+        _PopupWindowSetting(
+          title: "Comment keyword blocking".tl,
+          builder: () => const _ManageBlockingCommentWordView(),
+        ).toSliver(),
         SelectSetting(
           title: "Default Search Target".tl,
           settingKey: "defaultSearchTarget",
@@ -251,3 +255,92 @@ Widget setSearchSourcesWidget() {
     pages: pages,
   );
 }
+
+class _ManageBlockingCommentWordView extends StatefulWidget {
+  const _ManageBlockingCommentWordView();
+
+  @override
+  State<_ManageBlockingCommentWordView> createState() =>
+      _ManageBlockingCommentWordViewState();
+}
+
+class _ManageBlockingCommentWordViewState extends State<_ManageBlockingCommentWordView> {
+  @override
+  Widget build(BuildContext context) {
+    assert(appdata.settings["blockedCommentWords"] is List);
+    return PopUpWidgetScaffold(
+      title: "Comment keyword blocking".tl,
+      tailing: [
+        TextButton.icon(
+          icon: const Icon(Icons.add),
+          label: Text("Add".tl),
+          onPressed: add,
+        ),
+      ],
+      body: ListView.builder(
+        itemCount: appdata.settings["blockedCommentWords"].length,
+        itemBuilder: (context, index) {
+          return ListTile(
+            title: Text(appdata.settings["blockedCommentWords"][index]),
+            trailing: IconButton(
+              icon: const Icon(Icons.close),
+              onPressed: () {
+                appdata.settings["blockedCommentWords"].removeAt(index);
+                appdata.saveData();
+                setState(() {});
+              },
+            ),
+          );
+        },
+      ),
+    );
+  }
+
+  void add() {
+    showDialog(
+      context: App.rootContext,
+      builder: (context) {
+        var controller = TextEditingController();
+        String? error;
+        return StatefulBuilder(builder: (context, setState) {
+          return ContentDialog(
+            title: "Add keyword".tl,
+            content: TextField(
+              controller: controller,
+              decoration: InputDecoration(
+                border: const OutlineInputBorder(),
+                label: Text("Keyword".tl),
+                errorText: error,
+              ),
+              onChanged: (s) {
+                if (error != null) {
+                  setState(() {
+                    error = null;
+                  });
+                }
+              },
+            ).paddingHorizontal(12),
+            actions: [
+              Button.filled(
+                onPressed: () {
+                  if (appdata.settings["blockedCommentWords"]
+                      .contains(controller.text)) {
+                    setState(() {
+                      error = "Keyword already exists".tl;
+                    });
+                    return;
+                  }
+                  appdata.settings["blockedCommentWords"].add(controller.text);
+                  appdata.saveData();
+                  this.setState(() {});
+                  context.pop();
+                },
+                child: Text("Add".tl),
+              ),
+            ],
+          );
+        });
+      },
+    );
+  }
+}