Ready to implement group members screen

lib/models/group.dart

@@ -61,6 +61,10 @@ class Group {
 
   bool get isAdmin => membershipLevel == GroupMembershipLevel.ADMINISTRATOR;
 
+  bool get isAtLeastModerator =>
+      membershipLevel == GroupMembershipLevel.ADMINISTRATOR ||
+      membershipLevel == GroupMembershipLevel.MODERATOR;
+
   bool get canCreatePost =>
       membershipLevel == GroupMembershipLevel.ADMINISTRATOR ||
       membershipLevel == GroupMembershipLevel.MODERATOR ||

lib/ui/screens/authorized_group_page_screen.dart

@@ -2,6 +2,7 @@ import 'package:comunic/enums/post_target.dart';
 import 'package:comunic/helpers/posts_helper.dart';
 import 'package:comunic/models/advanced_group_info.dart';
 import 'package:comunic/ui/routes/main_route.dart';
+import 'package:comunic/ui/screens/group_members_screen.dart';
 import 'package:comunic/ui/screens/group_settings_screen.dart';
 import 'package:comunic/ui/widgets/group_following_widget.dart';
 import 'package:comunic/ui/widgets/group_icon_widget.dart';
@@ -19,7 +20,7 @@ import 'package:flutter/material.dart';
 ///
 /// @author Pierre Hubert
 
-enum _MenuItems { OPEN_SETTINGS }
+enum _MenuItems { OPEN_MEMBERS, OPEN_SETTINGS }
 
 class AuthorizedGroupPageScreen extends StatefulWidget {
   final AdvancedGroupInfo advancedGroupInfo;
@@ -107,11 +108,16 @@ class _AuthorizedGroupPageScreenState extends State<AuthorizedGroupPageScreen> {
             ),
             PopupMenuButton<_MenuItems>(
               itemBuilder: (c) => [
+                PopupMenuItem(
+                  child: Text(tr("Group members")),
+                  value: _MenuItems.OPEN_MEMBERS,
+                  enabled: _group.isAtLeastModerator,
+                ),
                 PopupMenuItem(
                   child: Text(tr("Group settings")),
                   value: _MenuItems.OPEN_SETTINGS,
                   enabled: _group.isAdmin,
-                )
+                ),
               ],
               onSelected: _handleMenuSelection,
             ),
@@ -146,6 +152,10 @@ class _AuthorizedGroupPageScreenState extends State<AuthorizedGroupPageScreen> {
   /// Handles menu selection
   void _handleMenuSelection(_MenuItems item) {
     switch (item) {
+      case _MenuItems.OPEN_MEMBERS:
+        MainController.of(context).push(GroupMembersScreen(groupID: _group.id));
+        break;
+
       case _MenuItems.OPEN_SETTINGS:
         MainController.of(context)
             .push(GroupSettingsScreen(groupID: _group.id));

lib/ui/screens/group_members_screen.dart

@@ -0,0 +1,30 @@
+import 'package:comunic/ui/widgets/comunic_back_button_widget.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:flutter/material.dart';
+
+/// Group members screen
+///
+/// @author Pierre HUBERT
+
+class GroupMembersScreen extends StatefulWidget {
+  final int groupID;
+
+  const GroupMembersScreen({Key key, this.groupID})
+      : assert(groupID != null),
+        super(key: key);
+
+  @override
+  _GroupMembersScreenState createState() => _GroupMembersScreenState();
+}
+
+class _GroupMembersScreenState extends State<GroupMembersScreen> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        leading: ComunicBackButton(),
+        title: Text(tr("Group members")),
+      ),
+    );
+  }
+}