fluffychat/lib/components/matrix.dart

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import 'dart:convert';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/utils/sqflite_store.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:localstorage/localstorage.dart';
import 'package:toast/toast.dart';
class Matrix extends StatefulWidget {
final Widget child;
final String clientName;
final Client client;
Matrix({this.child, this.clientName, this.client, Key key}) : super(key: key);
@override
MatrixState createState() => MatrixState();
/// Returns the (nearest) Client instance of your application.
static MatrixState of(BuildContext context) {
MatrixState newState =
(context.dependOnInheritedWidgetOfExactType<_InheritedMatrix>()).data;
newState.context = context;
return newState;
}
}
class MatrixState extends State<Matrix> {
Client client;
BuildContext context;
/// Used to load the old account if there is no store available.
void loadAccount() async {
final LocalStorage storage = LocalStorage('LocalStorage');
await storage.ready;
final credentialsStr = storage.getItem(widget.clientName);
if (credentialsStr == null || credentialsStr.isEmpty) {
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client.onLoginStateChanged.add(LoginState.loggedOut);
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return;
}
print("[Matrix] Restoring account credentials");
final Map<String, dynamic> credentials = json.decode(credentialsStr);
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client.connect(
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newDeviceID: credentials["deviceID"],
newDeviceName: credentials["deviceName"],
newHomeserver: credentials["homeserver"],
newLazyLoadMembers: credentials["lazyLoadMembers"],
//newMatrixVersions: credentials["matrixVersions"], // FIXME: wrong List type
newToken: credentials["token"],
newUserID: credentials["userID"],
);
}
/// Used to save the current account persistently if there is no store available.
Future<void> saveAccount() async {
if (!kIsWeb) return;
print("[Matrix] Save account credentials in crypted preferences");
final Map<String, dynamic> credentials = {
"deviceID": client.deviceID,
"deviceName": client.deviceName,
"homeserver": client.homeserver,
"lazyLoadMembers": client.lazyLoadMembers,
"matrixVersions": client.matrixVersions,
"token": client.accessToken,
"userID": client.userID,
};
final LocalStorage storage = LocalStorage('LocalStorage');
await storage.ready;
await storage.setItem(widget.clientName, json.encode(credentials));
return;
}
void clean() async {
if (!kIsWeb) return;
print("Clear session...");
final LocalStorage storage = LocalStorage('LocalStorage');
await storage.ready;
storage.deleteItem(widget.clientName);
}
BuildContext _loadingDialogContext;
Future<dynamic> tryRequestWithLoadingDialog(Future<dynamic> request) async {
showLoadingDialog(context);
final dynamic = await tryRequestWithErrorToast(request);
hideLoadingDialog();
return dynamic;
}
Future<dynamic> tryRequestWithErrorToast(Future<dynamic> request) async {
try {
return await request;
} catch (exception) {
Toast.show(
exception.toString(),
context,
duration: Toast.LENGTH_LONG,
);
return false;
}
}
showLoadingDialog(BuildContext context) {
_loadingDialogContext = context;
showDialog(
context: _loadingDialogContext,
barrierDismissible: false,
builder: (BuildContext context) => AlertDialog(
content: Row(
children: <Widget>[
CircularProgressIndicator(),
SizedBox(width: 16),
Text("Loading... Please wait"),
],
),
),
);
}
hideLoadingDialog() => Navigator.of(_loadingDialogContext)?.pop();
@override
void initState() {
if (widget.client == null) {
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client = Client(widget.clientName, debug: false);
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if (!kIsWeb)
client.store = Store(client);
else
loadAccount();
} else {
client = widget.client;
}
super.initState();
}
@override
Widget build(BuildContext context) {
return _InheritedMatrix(
data: 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) {
bool update = old.data.client.accessToken != this.data.client.accessToken ||
old.data.client.userID != this.data.client.userID ||
old.data.client.matrixVersions != this.data.client.matrixVersions ||
old.data.client.lazyLoadMembers != this.data.client.lazyLoadMembers ||
old.data.client.deviceID != this.data.client.deviceID ||
old.data.client.deviceName != this.data.client.deviceName ||
old.data.client.homeserver != this.data.client.homeserver;
return update;
}
}