opt: filter danmaku

related #283

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/danmaku/controller.dart

@@ -81,6 +81,9 @@ class PlDanmakuController {
   }
 
   bool filterDanmaku(DanmakuElem elem) {
+    if (plPlayerController.dmRegExp?.hasMatch(elem.content) == true) {
+      return false;
+    }
     for (var filter in plPlayerController.danmakuFilterRule) {
       switch (filter['type']) {
         case 0:
@@ -88,12 +91,12 @@ class PlDanmakuController {
             return false;
           }
           break;
-        case 1:
-          if (RegExp(filter['filter'], caseSensitive: false)
-              .hasMatch(elem.content)) {
-            return false;
-          }
-          break;
+        // case 1:
+        //   if (RegExp(filter['filter'], caseSensitive: false)
+        //       .hasMatch(elem.content)) {
+        //     return false;
+        //   }
+        //   break;
         case 2:
           if (elem.idStr == filter['filter']) {
             return false;

lib/pages/danmaku_block/index.dart

@@ -36,21 +36,34 @@ class _DanmakuBlockPageState extends State<DanmakuBlockPage> {
   }
 
   @override
-  void dispose() async {
+  void dispose() {
+    final regExp = RegExp(r'^/(.*)/$');
     List<Map<String, dynamic>> simpleRuleList = _danmakuBlockController
         .ruleTypes.values
         .expand((element) => element)
         .map<Map<String, dynamic>>((e) {
       //当正则表达式前后都有"/"时，去掉，避免RegExp解析错误
-      if (e.type == 1 && e.filter.startsWith('/') && e.filter.endsWith('/')) {
-        e.filter = e.filter.substring(1, e.filter.length - 1);
+      if (e.type == 1) {
+        String? filter = regExp.firstMatch(e.filter)?.group(1);
+        if (filter != null) {
+          e.filter = filter;
+        }
       }
       return e.toMap();
     }).toList();
     // debugPrint("simpleRuleList:$simpleRuleList");
-    plPlayerController.danmakuFilterRule = simpleRuleList;
+    List regex = [];
+    plPlayerController.danmakuFilterRule = simpleRuleList.where((item) {
+      if (item['type'] != 1) {
+        return true;
+      } else {
+        regex.add(item['filter']);
+        return false;
+      }
+    }).toList();
+    plPlayerController.dmRegExp =
+        regex.isNotEmpty ? RegExp(regex.join('|'), caseSensitive: false) : null;
     scrollController.dispose();
-    await GStorage.localCache.delete(LocalCacheKey.danmakuFilterRule);
     GStorage.localCache.put(LocalCacheKey.danmakuFilterRule, simpleRuleList);
     super.dispose();
   }

lib/pages/video/detail/widgets/header_control.dart

@@ -1144,7 +1144,7 @@ class _HeaderControlState extends State<HeaderControl> {
                                   arguments: widget.controller)
                             },
                         child: Text(
-                            "屏蔽管理(${widget.controller.danmakuFilterRule.length})")),
+                            "屏蔽管理(${widget.controller.danmakuFilterRule.length + (widget.controller.dmRegExp?.pattern.split('|').length ?? 0)})")),
                   ],
                 ),
                 Padding(

lib/plugin/pl_player/controller.dart

@@ -257,6 +257,7 @@ class PlPlayerController {
   /// 弹幕权重
   int danmakuWeight = 0;
   List danmakuFilterRule = [];
+  RegExp? dmRegExp;
   // 关联弹幕控制器
   DanmakuController? danmakuController;
   bool showDanmaku = true;
@@ -392,8 +393,19 @@ class PlPlayerController {
     isOpenDanmu.value =
         setting.get(SettingBoxKey.enableShowDanmaku, defaultValue: true);
     danmakuWeight = setting.get(SettingBoxKey.danmakuWeight, defaultValue: 0);
-    danmakuFilterRule = GStorage.localCache
+    List regex = [];
+    List rules = GStorage.localCache
         .get(LocalCacheKey.danmakuFilterRule, defaultValue: []);
+    danmakuFilterRule = rules.where((item) {
+      if (item['type'] != 1) {
+        return true;
+      } else {
+        regex.add(item['filter']);
+        return false;
+      }
+    }).toList();
+    dmRegExp =
+        regex.isNotEmpty ? RegExp(regex.join('|'), caseSensitive: false) : null;
     blockTypes = setting.get(SettingBoxKey.danmakuBlockType, defaultValue: []);
     showArea = setting.get(SettingBoxKey.danmakuShowArea, defaultValue: 0.5);
     // 不透明度