fix when group chat and members offline

lib/apps/group_chat/detail.dart

@@ -343,7 +343,7 @@ class _GroupChatDetailState extends State<GroupChatDetail> {
                     message: message,
                   ) : ChatMessage(
                     fgid: member.mid,
-                    avatar: member.showAvatar(),
+                    avatar: member.showAvatar(isOnline: isOnline),
                     name: member.name,
                     message: message,
                   );
@@ -583,11 +583,11 @@ class _MemberDrawerWidget extends StatelessWidget {
     );
   }
 
-  Widget _item(context, Member member, bool isOwner, bool meOwner, bool meManager, Color color, lang) {
+  Widget _item(context, bool isOnline, Member member, bool isOwner, bool meOwner, bool meManager, Color color, lang) {
     return Container(
       height: 55.0,
       child: ListTile(
-        leading: member.showAvatar(colorSurface: false),
+        leading: member.showAvatar(colorSurface: false, isOnline: isOnline),
         title: Text(member.name, textAlign: TextAlign.left, style: TextStyle(fontSize: 16.0)),
         trailing: Text(member.isBlock
           ? lang.blocked : (isOwner
@@ -623,7 +623,9 @@ class _MemberDrawerWidget extends StatelessWidget {
     final lang = AppLocalizations.of(context);
     final isLight = color.brightness == Brightness.light;
     final isDesktop = isDisplayDesktop(context);
-    final myId = context.read<AccountProvider>().activedAccountId;
+    final accountProvider = context.read<AccountProvider>();
+    final myId = accountProvider.activedAccountId;
+    final isOnline = accountProvider.activedSession.isActive();
 
     final provider = context.watch<GroupChatProvider>();
     final members = provider.activedMembers;
@@ -676,7 +678,7 @@ class _MemberDrawerWidget extends StatelessWidget {
                   child: ListView.builder(
                     itemCount: allKeys.length,
                     itemBuilder: (BuildContext ctx, int index) => _item(
-                      context, members[allKeys[index]],
+                      context, isOnline, members[allKeys[index]],
                       index == 0 && !meOwner, meOwner, meManager, color.primary, lang
                     ),
                   )

lib/apps/group_chat/models.dart

@@ -182,13 +182,13 @@ class Member {
     this.isBlock = params[6];
   }
 
-  Avatar showAvatar({double width = 45.0, colorSurface = true}) {
+  Avatar showAvatar({double width = 45.0, bool colorSurface = true, bool isOnline = true}) {
     final avatar = Global.avatarPath + this.mid + '.png';
     return Avatar(
       width: width,
       name: this.name,
       avatarPath: avatar,
-      online: this.online,
+      online: isOnline && this.online,
       onlineColor: Color(0xFF0EE50A),
       colorSurface: colorSurface,
     );

lib/apps/group_chat/provider.dart

@@ -22,7 +22,7 @@ class GroupChatProvider extends ChangeNotifier {
   SplayTreeMap<int, Member> activedMembers = SplayTreeMap();
 
   GroupChat get activedGroup => this.groups[this.actived];
-  bool get isActivedGroupOwner => this.activedGroup.owner == Global.gid;
+  bool get isActivedGroupOwner => this.activedGroup != null ? this.activedGroup.owner == Global.gid : false;
   bool get isActivedGroupManager {
     this.activedMembers.values.forEach((m) {
         if (m.mid == Global.gid) {
@@ -164,7 +164,9 @@ class GroupChatProvider extends ChangeNotifier {
   }
 
   memberUpdate(int id, bool isBlock) {
+    this.activedMembers[id].isBlock = isBlock;
     rpc.send('group-chat-member-update', [id, isBlock]);
+    notifyListeners();
   }
 
   _list(List params) {

lib/pages/home.dart

@@ -237,6 +237,7 @@ class DrawerWidget extends StatelessWidget {
                 Provider.of<AccountProvider>(context, listen: false).updateActivedAccount(account.gid);
                 Provider.of<DeviceProvider>(context, listen: false).updateActived();
                 Provider.of<ChatProvider>(context, listen: false).updateActived();
+                Provider.of<GroupChatProvider>(context, listen: false).updateActived();
               }
             : null,
         child: Padding(