NOISSUE Various changes from multiauth that are unrelated to it

logic/BaseConfigObject.cpp

@@ -0,0 +1,119 @@
+/* Copyright 2015 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "BaseConfigObject.h"
+
+#include <QTimer>
+#include <QSaveFile>
+#include <QFile>
+#include <QCoreApplication>
+#include <QDebug>
+
+#include "Exception.h"
+
+BaseConfigObject::BaseConfigObject(const QString &filename)
+	: m_filename(filename)
+{
+	m_saveTimer = new QTimer;
+	m_saveTimer->setSingleShot(true);
+	// cppcheck-suppress pureVirtualCall
+	QObject::connect(m_saveTimer, &QTimer::timeout, [this](){saveNow();});
+	setSaveTimeout(250);
+
+	m_initialReadTimer = new QTimer;
+	m_initialReadTimer->setSingleShot(true);
+	QObject::connect(m_initialReadTimer, &QTimer::timeout, [this]()
+	{
+		loadNow();
+		m_initialReadTimer->deleteLater();
+		m_initialReadTimer = 0;
+	});
+	m_initialReadTimer->start(0);
+
+	// cppcheck-suppress pureVirtualCall
+	m_appQuitConnection = QObject::connect(qApp, &QCoreApplication::aboutToQuit, [this](){saveNow();});
+}
+BaseConfigObject::~BaseConfigObject()
+{
+	delete m_saveTimer;
+	if (m_initialReadTimer)
+	{
+		delete m_initialReadTimer;
+	}
+	QObject::disconnect(m_appQuitConnection);
+}
+
+void BaseConfigObject::setSaveTimeout(int msec)
+{
+	m_saveTimer->setInterval(msec);
+}
+
+void BaseConfigObject::scheduleSave()
+{
+	m_saveTimer->stop();
+	m_saveTimer->start();
+}
+void BaseConfigObject::saveNow()
+{
+	if (m_saveTimer->isActive())
+	{
+		m_saveTimer->stop();
+	}
+	if (m_disableSaving)
+	{
+		return;
+	}
+
+	QSaveFile file(m_filename);
+	if (!file.open(QFile::WriteOnly))
+	{
+		qWarning() << "Couldn't open" << m_filename << "for writing:" << file.errorString();
+		return;
+	}
+	// cppcheck-suppress pureVirtualCall
+	file.write(doSave());
+
+	if (!file.commit())
+	{
+		qCritical() << "Unable to commit the file" << file.fileName() << ":" << file.errorString();
+		file.cancelWriting();
+	}
+}
+void BaseConfigObject::loadNow()
+{
+	if (m_saveTimer->isActive())
+	{
+		saveNow();
+	}
+
+	QFile file(m_filename);
+	if (!file.exists())
+	{
+		return;
+	}
+	if (!file.open(QFile::ReadOnly))
+	{
+		qWarning() << "Couldn't open" << m_filename << "for reading:" << file.errorString();
+		return;
+	}
+	try
+	{
+		doLoad(file.readAll());
+	}
+	catch (Exception &e)
+	{
+		qWarning() << "Error loading" << m_filename << ":" << e.cause();
+	}
+}