mod: show dm merged count

related #359

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

lib/http/danmaku.dart

@@ -1,6 +1,5 @@
 import 'package:PiliPlus/grpc/dm/v1/dm.pb.dart';
 import 'package:PiliPlus/grpc/grpc_repo.dart';
-import 'package:PiliPlus/utils/extension.dart';
 import 'package:dio/dio.dart';
 import 'index.dart';
 
@@ -18,8 +17,20 @@ class DanmakuHttp {
       return DmSegMobileReply();
     }
     DmSegMobileReply data = response['data'];
-    if (mergeDanmaku) {
-      data.elems.unique((item) => item.content);
+    if (mergeDanmaku && data.elems.isNotEmpty) {
+      final Map counts = <String, int>{};
+      data.elems.retainWhere((item) {
+        int? count = counts[item.content];
+        counts[item.content] = count != null ? count + 1 : 1;
+        return count == null;
+      });
+      for (DanmakuElem item in data.elems) {
+        item.clearAttr();
+        final count = counts[item.content];
+        if (count != 1) {
+          item.attr = count;
+        }
+      }
     }
     return data;
   }

lib/pages/danmaku/view.dart

@@ -117,6 +117,9 @@ class _PlDanmakuState extends State<PlDanmaku> {
                     e.colorful == DmColorfulType.VipGradualColor
                 ? true
                 : null,
+            count: widget.playerController.mergeDanmaku && e.hasAttr()
+                ? e.attr
+                : null,
           ),
         );
       }

pubspec.lock

@@ -252,7 +252,7 @@ packages:
     description:
       path: "."
       ref: main
-      resolved-ref: ecf4a8457ec9d128095240d96dbfa5cc53b6cf6b
+      resolved-ref: "77c76f6595c6862cc623b036718173619c02af75"
       url: "https://github.com/bggRGjQaUbCoE/canvas_danmaku.git"
     source: git
     version: "0.2.6"