fluffychat/lib/views/chat_encryption_settings.dart

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:fluffychat/utils/beautify_string_extension.dart';
import 'package:fluffychat/l10n/l10n.dart';
import 'package:fluffychat/views/chat_list.dart';
import 'package:flutter/material.dart';

class ChatEncryptionSettingsView extends StatelessWidget {
  final String id;

  const ChatEncryptionSettingsView(this.id, {Key key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return AdaptivePageLayout(
      firstScaffold: ChatList(
        activeChat: id,
      ),
      secondScaffold: ChatEncryptionSettings(id),
      primaryPage: FocusPage.SECOND,
    );
  }
}

class ChatEncryptionSettings extends StatefulWidget {
  final String id;

  const ChatEncryptionSettings(this.id, {Key key}) : super(key: key);

  @override
  _ChatEncryptionSettingsState createState() => _ChatEncryptionSettingsState();
}

class _ChatEncryptionSettingsState extends State<ChatEncryptionSettings> {
  @override
  Widget build(BuildContext context) {
    final room = Matrix.of(context).client.getRoomById(widget.id);

    return Scaffold(
      appBar: AppBar(
        title: Text(L10n.of(context).participatingUserDevices),
      ),
      body: StreamBuilder(
          stream: room.onUpdate.stream,
          builder: (context, snapshot) {
            return FutureBuilder<List<DeviceKeys>>(
              future: room.getUserDeviceKeys(),
              builder: (BuildContext context, snapshot) {
                if (snapshot.hasError) {
                  return Center(
                    child: Text(L10n.of(context).oopsSomethingWentWrong +
                        ": " +
                        snapshot.error.toString()),
                  );
                }
                if (!snapshot.hasData) {
                  return Center(child: CircularProgressIndicator());
                }
                final List<DeviceKeys> deviceKeys = snapshot.data;
                return Expanded(
                  child: ListView.separated(
                    separatorBuilder: (BuildContext context, int i) =>
                        Divider(height: 1),
                    itemCount: deviceKeys.length,
                    itemBuilder: (BuildContext context, int i) => Column(
                      mainAxisSize: MainAxisSize.min,
                      children: <Widget>[
                        if (i == 0 ||
                            deviceKeys[i].userId != deviceKeys[i - 1].userId)
                          Material(
                            child: ListTile(
                              leading: Avatar(
                                room
                                    .getUserByMXIDSync(deviceKeys[i].userId)
                                    .avatarUrl,
                                room
                                    .getUserByMXIDSync(deviceKeys[i].userId)
                                    .calcDisplayname(),
                              ),
                              title: Text(room
                                  .getUserByMXIDSync(deviceKeys[i].userId)
                                  .calcDisplayname()),
                              subtitle: Text(deviceKeys[i].userId),
                            ),
                            elevation: 2,
                          ),
                        CheckboxListTile(
                          title: Text(
                            "${deviceKeys[i].unsigned["device_display_name"] ?? L10n.of(context).unknownDevice} - ${deviceKeys[i].deviceId}",
                            style: TextStyle(
                                color: deviceKeys[i].blocked
                                    ? Colors.red
                                    : deviceKeys[i].verified
                                        ? Colors.green
                                        : Colors.orange),
                          ),
                          subtitle: Text(
                            deviceKeys[i]
                                .keys["ed25519:${deviceKeys[i].deviceId}"]
                                .beautified,
                            style: TextStyle(
                                color: Theme.of(context)
                                    .textTheme
                                    .bodyText2
                                    .color),
                          ),
                          value: deviceKeys[i].verified,
                          onChanged: (bool newVal) {
                            if (newVal == true) {
                              if (deviceKeys[i].blocked) {
                                deviceKeys[i].setBlocked(
                                    false, Matrix.of(context).client);
                              }
                              deviceKeys[i]
                                  .setVerified(true, Matrix.of(context).client);
                            } else {
                              if (deviceKeys[i].verified) {
                                deviceKeys[i].setVerified(
                                    false, Matrix.of(context).client);
                              }
                              deviceKeys[i]
                                  .setBlocked(true, Matrix.of(context).client);
                            }
                            setState(() => null);
                          },
                        ),
                      ],
                    ),
                  ),
                );
              },
            );
          }),
    );
  }
}