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Telegram/lib_base/base/qt_connection.h

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+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#pragma once
+
+#include "base/algorithm.h"
+
+#include <QtCore/QObject>
+
+namespace base {
+
+class qt_connection final {
+public:
+	qt_connection(QMetaObject::Connection data = {}) : _data(data) {
+	}
+	qt_connection(qt_connection &&other) : _data(base::take(other._data)) {
+	}
+	qt_connection &operator=(qt_connection &&other) {
+		reset(base::take(other._data));
+		return *this;
+	}
+	~qt_connection() {
+		disconnect();
+	}
+
+	void release() {
+		_data = QMetaObject::Connection();
+	}
+	void reset(QMetaObject::Connection data = {}) {
+		disconnect();
+		_data = data;
+	}
+
+private:
+	void disconnect() {
+		if (_data) {
+			QObject::disconnect(base::take(_data));
+		}
+	}
+
+	QMetaObject::Connection _data;
+
+};
+
+} // namespace base