refactor: Use Provider

lib/components/matrix.dart

@@ -15,6 +15,7 @@ import 'package:flushbar/flushbar.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
+import 'package:provider/provider.dart';
 import 'package:universal_html/prefer_universal/html.dart' as html;
 import 'package:url_launcher/url_launcher.dart';
 import 'package:path_provider/path_provider.dart';
@@ -43,12 +44,8 @@ class Matrix extends StatefulWidget {
   MatrixState createState() => MatrixState();
 
   /// Returns the (nearest) Client instance of your application.
-  static MatrixState of(BuildContext context) {
-    var newState =
-        (context.dependOnInheritedWidgetOfExactType<_InheritedMatrix>()).data;
-    newState.context = FirebaseController.context = context;
-    return newState;
-  }
+  static MatrixState of(BuildContext context) =>
+      Provider.of<MatrixState>(context, listen: false);
 }
 
 class MatrixState extends State<Matrix> {
@@ -57,8 +54,6 @@ class MatrixState extends State<Matrix> {
   @override
   BuildContext context;
 
-  static const String userStatusesType = 'chat.fluffy.user_statuses';
-
   Map<String, dynamic> get shareContent => _shareContent;
   set shareContent(Map<String, dynamic> content) {
     _shareContent = content;
@@ -438,26 +433,9 @@ class MatrixState extends State<Matrix> {
 
   @override
   Widget build(BuildContext context) {
-    return _InheritedMatrix(
-      data: this,
+    return Provider(
+      create: (_) => this,
       child: widget.child,
     );
   }
 }
-
-class _InheritedMatrix extends InheritedWidget {
-  final MatrixState data;
-
-  _InheritedMatrix({Key key, this.data, Widget child})
-      : super(key: key, child: child);
-
-  @override
-  bool updateShouldNotify(_InheritedMatrix old) {
-    var update = old.data.client.accessToken != data.client.accessToken ||
-        old.data.client.userID != data.client.userID ||
-        old.data.client.deviceID != data.client.deviceID ||
-        old.data.client.deviceName != data.client.deviceName ||
-        old.data.client.homeserver != data.client.homeserver;
-    return update;
-  }
-}

lib/views/chat_list.dart

@@ -300,16 +300,11 @@ class _ChatListState extends State<ChatList> {
                       ConnectionStatusHeader(),
                       Expanded(
                         child: StreamBuilder(
-                            stream:
-                                Matrix.of(context).client.onSync.stream.where(
-                                      (s) =>
-                                          s.hasRoomUpdate ||
-                                          s.accountData
-                                              .where((a) =>
-                                                  a.type ==
-                                                  MatrixState.userStatusesType)
-                                              .isNotEmpty,
-                                    ),
+                            stream: Matrix.of(context)
+                                .client
+                                .onSync
+                                .stream
+                                .where((s) => s.hasRoomUpdate),
                             builder: (context, snapshot) {
                               return FutureBuilder<void>(
                                 future: waitForFirstSync(context),