Initial commit

lib/views/invitation_selection.dart

@@ -0,0 +1,74 @@
+import 'package:famedlysdk/famedlysdk.dart';
+import 'package:fluffychat/components/adaptive_page_layout.dart';
+import 'package:fluffychat/components/avatar.dart';
+import 'package:fluffychat/components/matrix.dart';
+import 'package:flutter/material.dart';
+import 'package:toast/toast.dart';
+
+import 'chat_list.dart';
+
+class InvitationSelection extends StatelessWidget {
+  final Room room;
+  const InvitationSelection(this.room, {Key key}) : super(key: key);
+
+  Future<List<User>> getContacts(BuildContext context) async {
+    final Client client = Matrix.of(context).client;
+    List<User> participants = await room.requestParticipants();
+    List<User> contacts = [];
+    Map<String, bool> userMap = {};
+    for (int i = 0; i < client.roomList.rooms.length; i++) {
+      List<User> roomUsers = client.roomList.rooms[i].getParticipants();
+      for (int j = 0; j < roomUsers.length; j++) {
+        if (userMap[roomUsers[j].id] != true &&
+            participants.indexWhere((u) => u.id == roomUsers[j].id) == -1)
+          contacts.add(roomUsers[j]);
+        userMap[roomUsers[j].id] = true;
+      }
+    }
+    return contacts;
+  }
+
+  void inviteAction(BuildContext context, String id) async {
+    final success = await Matrix.of(context).tryRequestWithLoadingDialog(
+      room.invite(id),
+    );
+    if (success != false)
+      Toast.show(
+        "Contact has been invited to the group.",
+        context,
+        duration: Toast.LENGTH_LONG,
+      );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final String groupName = room.name?.isEmpty ?? false ? "group" : room.name;
+    return AdaptivePageLayout(
+      primaryPage: FocusPage.SECOND,
+      firstScaffold: ChatList(activeChat: room.id),
+      secondScaffold: Scaffold(
+          appBar: AppBar(
+            title: Text("Invite contact to $groupName"),
+          ),
+          body: FutureBuilder<List<User>>(
+            future: getContacts(context),
+            builder: (BuildContext context, snapshot) {
+              if (!snapshot.hasData)
+                return Center(
+                  child: CircularProgressIndicator(),
+                );
+              List<User> contacts = snapshot.data;
+              return ListView.builder(
+                itemCount: contacts.length,
+                itemBuilder: (BuildContext context, int i) => ListTile(
+                  leading: Avatar(contacts[i].avatarUrl),
+                  title: Text(contacts[i].calcDisplayname()),
+                  subtitle: Text(contacts[i].id),
+                  onTap: () => inviteAction(context, contacts[i].id),
+                ),
+              );
+            },
+          )),
+    );
+  }
+}