Add logout button

Logout from the current session and invalidate the current token

include/ChatPage.h

@@ -48,6 +48,9 @@ public:
 	// Initialize all the components of the UI.
 	void bootstrap(QString userid, QString homeserver, QString token);
 
+signals:
+	void close();
+
 public slots:
 	// Updates the user info box.
 	void updateOwnProfileInfo(const QUrl &avatar_url, const QString &display_name);
@@ -58,6 +61,7 @@ public slots:
 	void sendTextMessage(const QString &msg);
 	void messageSent(const QString event_id, int txn_id);
 	void startSync();
+	void logout();
 
 private:
 	Ui::ChatPage *ui;

include/HistoryView.h

@@ -38,6 +38,7 @@ public:
 
 	void addHistoryItem(const Event &event, const QString &color, bool with_sender);
 	void addEvents(const QList<Event> &events);
+	void clear();
 
 public slots:
 	void sliderRangeChanged(int min, int max);

include/HistoryViewManager.h

@@ -36,6 +36,7 @@ public:
 
 	void initialize(const Rooms &rooms);
 	void sync(const Rooms &rooms);
+	void clearAll();
 
 public slots:
 	void setHistoryView(const RoomInfo &info);

include/MatrixClient.h

@@ -44,9 +44,11 @@ public:
 	inline QString getHomeServer();
 	inline void incrementTransactionId();
 
+	void reset();
+
 public slots:
-	// Profile
 	void getOwnProfile();
+	void logout();
 
 	inline void setServer(const QString &server);
 	inline void setAccessToken(const QString &token);
@@ -56,6 +58,8 @@ signals:
 	void loginError(const QString &error);
 	void registerError(const QString &error);
 
+	void loggedOut();
+
 	void loginSuccess(const QString &userid, const QString &homeserver, const QString &token);
 	void registerSuccess(const QString &userid, const QString &homeserver, const QString &token);
 
@@ -74,6 +78,7 @@ private:
 		GetProfile,
 		InitialSync,
 		Login,
+		Logout,
 		Register,
 		SendTextMessage,
 		Sync,
@@ -82,6 +87,7 @@ private:
 
 	// Response handlers.
 	void onLoginResponse(QNetworkReply *reply);
+	void onLogoutResponse(QNetworkReply *reply);
 	void onRegisterResponse(QNetworkReply *reply);
 	void onVersionsResponse(QNetworkReply *reply);
 	void onGetOwnProfileResponse(QNetworkReply *reply);

include/RoomList.h

@@ -39,9 +39,10 @@ public:
 	explicit RoomList(QWidget *parent = 0);
 	~RoomList();
 
-	void appendRoom(QString name);
 	void setInitialRooms(const Rooms &rooms);
 	void updateRoomAvatar(const QString &roomid, const QImage &avatar_image);
+	void clear();
+
 	RoomInfo extractRoomInfo(const State &room_state);
 
 signals:
@@ -54,7 +55,7 @@ public slots:
 private:
 	Ui::RoomList *ui;
 
-	QMap<QString, RoomInfoListItem *> available_rooms_;
+	QMap<QString, RoomInfoListItem *> rooms_;
 };
 
 #endif  // ROOMLIST_H

include/TopRoomBar.h

@@ -40,6 +40,8 @@ public:
 	inline void updateRoomName(const QString &name);
 	inline void updateRoomTopic(const QString &topic);
 
+	void reset();
+
 protected:
 	void paintEvent(QPaintEvent *event) override;
 

include/UserInfoWidget.h

@@ -38,6 +38,11 @@ public:
 	void setDisplayName(const QString &name);
 	void setUserId(const QString &userid);
 
+	void reset();
+
+signals:
+	void logout();
+
 private:
 	Avatar *userAvatar_;
 
@@ -46,7 +51,7 @@ private:
 	QVBoxLayout *textLayout_;
 	QHBoxLayout *buttonLayout_;
 
-	FlatButton *settingsButton_;
+	FlatButton *logoutButton_;
 
 	QLabel *displayNameLabel_;
 	QLabel *userIdLabel_;

resources/res.qrc

@@ -10,6 +10,7 @@
         <file>icons/clip-dark.png</file>
         <file>icons/share-dark.png</file>
         <file>icons/user-shape.png</file>
+        <file>icons/power-button-off.png</file>
     </qresource>
 
     <qresource prefix="/fonts">

src/ChatPage.cc

@@ -53,6 +53,9 @@ ChatPage::ChatPage(QWidget *parent)
 	sync_timer_ = new QTimer(this);
 	connect(sync_timer_, SIGNAL(timeout()), this, SLOT(startSync()));
 
+	connect(user_info_widget_, SIGNAL(logout()), matrix_client_, SLOT(logout()));
+	connect(matrix_client_, SIGNAL(loggedOut()), this, SLOT(logout()));
+
 	connect(room_list_,
 		SIGNAL(roomChanged(const RoomInfo &)),
 		this,
@@ -94,6 +97,29 @@ ChatPage::ChatPage(QWidget *parent)
 		SLOT(messageSent(QString, int)));
 }
 
+void ChatPage::logout()
+{
+	sync_timer_->stop();
+
+	QSettings settings;
+	settings.remove("auth/access_token");
+	settings.remove("auth/home_server");
+	settings.remove("auth/user_id");
+	settings.remove("client/transaction_id");
+
+	// Clear the environment.
+	room_list_->clear();
+	view_manager_->clearAll();
+
+	top_bar_->reset();
+	user_info_widget_->reset();
+	matrix_client_->reset();
+
+	room_avatars_.clear();
+
+	emit close();
+}
+
 void ChatPage::messageSent(QString event_id, int txn_id)
 {
 	Q_UNUSED(event_id);

src/HistoryView.cc

@@ -63,6 +63,14 @@ HistoryView::HistoryView(QWidget *parent)
 	init();
 }
 
+void HistoryView::clear()
+{
+	nick_colors_.clear();
+
+	for (const auto msg : scroll_layout_->children())
+		msg->deleteLater();
+}
+
 void HistoryView::sliderRangeChanged(int min, int max)
 {
 	Q_UNUSED(min);
@@ -80,9 +88,7 @@ QString HistoryView::chooseRandomColor()
 
 void HistoryView::addEvents(const QList<Event> &events)
 {
-	for (int i = 0; i < events.size(); i++) {
-		auto event = events[i];
-
+	for (const auto &event : events) {
 		if (event.type() == "m.room.message") {
 			auto msg_type = event.content().value("msgtype").toString();
 
@@ -97,8 +103,6 @@ void HistoryView::addEvents(const QList<Event> &events)
 
 				addHistoryItem(event, color, with_sender);
 				last_sender_ = event.sender();
-			} else {
-				qDebug() << "Ignoring message" << msg_type;
 			}
 		}
 	}

src/HistoryViewManager.cc

@@ -37,6 +37,17 @@ HistoryViewManager::~HistoryViewManager()
 {
 }
 
+void HistoryViewManager::clearAll()
+{
+	for (const auto &view: views_) {
+		view->clear();
+		removeWidget(view);
+		view->deleteLater();
+	}
+
+	views_.clear();
+}
+
 void HistoryViewManager::initialize(const Rooms &rooms)
 {
 	for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {

src/MainWindow.cc

@@ -57,6 +57,8 @@ MainWindow::MainWindow(QWidget *parent)
 		this,
 		SLOT(matrixRegister(const QString &, const QString &, const QString &)));
 
+	connect(chat_page_, SIGNAL(close()), this, SLOT(showWelcomePage()));
+
 	connect(matrix_client_,
 		SIGNAL(registerError(const QString &)),
 		register_page_,

src/MatrixClient.cc

@@ -43,6 +43,15 @@ MatrixClient::MatrixClient(QString server, QObject *parent)
 	connect(this, SIGNAL(finished(QNetworkReply *)), this, SLOT(onResponse(QNetworkReply *)));
 }
 
+void MatrixClient::reset()
+{
+	next_batch_ = "";
+	server_ = "";
+	token_ = "";
+
+	txn_id_ = 0;
+}
+
 void MatrixClient::onVersionsResponse(QNetworkReply *reply)
 {
 	reply->deleteLater();
@@ -93,6 +102,20 @@ void MatrixClient::onLoginResponse(QNetworkReply *reply)
 	}
 }
 
+void MatrixClient::onLogoutResponse(QNetworkReply *reply)
+{
+	reply->deleteLater();
+
+	int status = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+
+	if (status != 200) {
+		qWarning() << "Logout error: " << reply->errorString();
+		return;
+	}
+
+	emit loggedOut();
+}
+
 void MatrixClient::onRegisterResponse(QNetworkReply *reply)
 {
 	reply->deleteLater();
@@ -249,6 +272,9 @@ void MatrixClient::onResponse(QNetworkReply *reply)
 	case Endpoint::Login:
 		onLoginResponse(reply);
 		break;
+	case Endpoint::Logout:
+		onLogoutResponse(reply);
+		break;
 	case Endpoint::Register:
 		onRegisterResponse(reply);
 		break;
@@ -283,6 +309,23 @@ void MatrixClient::login(const QString &username, const QString &password)
 	reply->setProperty("endpoint", Endpoint::Login);
 }
 
+void MatrixClient::logout()
+{
+	QUrlQuery query;
+	query.addQueryItem("access_token", token_);
+
+	QUrl endpoint(server_);
+	endpoint.setPath(api_url_ + "/logout");
+	endpoint.setQuery(query);
+
+	QNetworkRequest request(endpoint);
+	request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
+
+	QJsonObject body{};
+	QNetworkReply *reply = post(request, QJsonDocument(body).toJson(QJsonDocument::Compact));
+	reply->setProperty("endpoint", Endpoint::Logout);
+}
+
 void MatrixClient::registerUser(const QString &user, const QString &pass, const QString &server)
 {
 	setServer(server);

src/RoomList.cc

@@ -30,6 +30,7 @@ RoomList::RoomList(QWidget *parent)
     , ui(new Ui::RoomList)
 {
 	ui->setupUi(this);
+	ui->scrollVerticalLayout->addStretch(1);
 }
 
 RoomList::~RoomList()
@@ -37,22 +38,30 @@ RoomList::~RoomList()
 	delete ui;
 }
 
+void RoomList::clear()
+{
+	for (const auto &room : rooms_)
+		room->deleteLater();
+
+	rooms_.clear();
+}
+
 RoomInfo RoomList::extractRoomInfo(const State &room_state)
 {
 	RoomInfo info;
 
 	auto events = room_state.events();
 
-	for (int i = 0; i < events.count(); i++) {
-		if (events[i].type() == "m.room.name") {
-			info.setName(events[i].content().value("name").toString());
-		} else if (events[i].type() == "m.room.topic") {
-			info.setTopic(events[i].content().value("topic").toString());
-		} else if (events[i].type() == "m.room.avatar") {
-			info.setAvatarUrl(QUrl(events[i].content().value("url").toString()));
-		} else if (events[i].type() == "m.room.canonical_alias") {
+	for (const auto &event : events) {
+		if (event.type() == "m.room.name") {
+			info.setName(event.content().value("name").toString());
+		} else if (event.type() == "m.room.topic") {
+			info.setTopic(event.content().value("topic").toString());
+		} else if (event.type() == "m.room.avatar") {
+			info.setAvatarUrl(QUrl(event.content().value("url").toString()));
+		} else if (event.type() == "m.room.canonical_alias") {
 			if (info.name().isEmpty())
-				info.setName(events[i].content().value("alias").toString());
+				info.setName(event.content().value("alias").toString());
 		}
 	}
 
@@ -61,7 +70,7 @@ RoomInfo RoomList::extractRoomInfo(const State &room_state)
 
 void RoomList::setInitialRooms(const Rooms &rooms)
 {
-	available_rooms_.clear();
+	rooms_.clear();
 
 	for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {
 		RoomInfo info = RoomList::extractRoomInfo(it.value().state());
@@ -79,24 +88,23 @@ void RoomList::setInitialRooms(const Rooms &rooms)
 			this,
 			SLOT(highlightSelectedRoom(const RoomInfo &)));
 
-		available_rooms_.insert(it.key(), room_item);
+		rooms_.insert(it.key(), room_item);
 
-		ui->scrollVerticalLayout->addWidget(room_item);
+		int pos = ui->scrollVerticalLayout->count() - 1;
+		ui->scrollVerticalLayout->insertWidget(pos, room_item);
 	}
 
 	// TODO: Move this into its own function.
-	auto first_room = available_rooms_.first();
+	auto first_room = rooms_.first();
 	first_room->setPressedState(true);
 	emit roomChanged(first_room->info());
-
-	ui->scrollVerticalLayout->addStretch(1);
 }
 
 void RoomList::highlightSelectedRoom(const RoomInfo &info)
 {
 	emit roomChanged(info);
 
-	for (auto it = available_rooms_.constBegin(); it != available_rooms_.constEnd(); it++) {
+	for (auto it = rooms_.constBegin(); it != rooms_.constEnd(); it++) {
 		if (it.key() != info.id())
 			it.value()->setPressedState(false);
 	}
@@ -104,16 +112,11 @@ void RoomList::highlightSelectedRoom(const RoomInfo &info)
 
 void RoomList::updateRoomAvatar(const QString &roomid, const QImage &avatar_image)
 {
-	if (!available_rooms_.contains(roomid)) {
+	if (!rooms_.contains(roomid)) {
 		qDebug() << "Avatar update on non existent room" << roomid;
 		return;
 	}
 
-	auto list_item = available_rooms_.value(roomid);
+	auto list_item = rooms_.value(roomid);
 	list_item->setAvatar(avatar_image);
 }
-
-void RoomList::appendRoom(QString name)
-{
-	Q_UNUSED(name);
-}

src/TopRoomBar.cc

@@ -77,6 +77,13 @@ TopRoomBar::TopRoomBar(QWidget *parent)
 	setLayout(top_layout_);
 }
 
+void TopRoomBar::reset()
+{
+	name_label_->setText("");
+	topic_label_->setText("");
+	avatar_->setLetter(QChar('?'));
+}
+
 void TopRoomBar::paintEvent(QPaintEvent *event)
 {
 	Q_UNUSED(event);

src/UserInfoWidget.cc

@@ -24,7 +24,6 @@ UserInfoWidget::UserInfoWidget(QWidget *parent)
     , userid_("@user:homeserver.org")
 {
 	QSizePolicy sizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
-
 	setSizePolicy(sizePolicy);
 	setMinimumSize(QSize(0, 65));
 
@@ -65,26 +64,35 @@ UserInfoWidget::UserInfoWidget(QWidget *parent)
 
 	buttonLayout_ = new QHBoxLayout();
 
-	settingsButton_ = new FlatButton(this);
-	settingsButton_->setForegroundColor(QColor("#ebebeb"));
-	settingsButton_->setCursor(QCursor(Qt::PointingHandCursor));
-	settingsButton_->setStyleSheet("width: 30px; height: 30px;");
+	logoutButton_ = new FlatButton(this);
+	logoutButton_->setForegroundColor(QColor("#ebebeb"));
+	logoutButton_->setCursor(QCursor(Qt::PointingHandCursor));
+	logoutButton_->setStyleSheet("width: 30px; height: 30px;");
 
 	QIcon icon;
-	icon.addFile(":/icons/icons/user-shape.png", QSize(), QIcon::Normal, QIcon::Off);
+	icon.addFile(":/icons/icons/power-button-off.png", QSize(), QIcon::Normal, QIcon::Off);
 
-	settingsButton_->setIcon(icon);
-	settingsButton_->setIconSize(QSize(16, 16));
+	logoutButton_->setIcon(icon);
+	logoutButton_->setIconSize(QSize(16, 16));
 
-	buttonLayout_->addWidget(settingsButton_);
+	buttonLayout_->addWidget(logoutButton_);
 
 	topLayout_->addLayout(buttonLayout_);
+
+	connect(logoutButton_, SIGNAL(clicked()), this, SIGNAL(logout()));
 }
 
 UserInfoWidget::~UserInfoWidget()
 {
 }
 
+void UserInfoWidget::reset()
+{
+	displayNameLabel_->setText("");
+	userIdLabel_->setText("");
+	userAvatar_->setLetter(QChar('?'));
+}
+
 void UserInfoWidget::setAvatar(const QImage &img)
 {
 	avatar_image_ = img;