pollymc/launcher/InstanceCreationTask.h

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#pragma once
#include "BaseVersion.h"
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#include "InstanceTask.h"
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class InstanceCreationTask : public InstanceTask {
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Q_OBJECT
public:
InstanceCreationTask();
virtual ~InstanceCreationTask() = default;
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protected:
void executeTask() final override;
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/**
* Tries to update an already existing instance.
*
* This can be implemented by subclasses to provide a way of updating an already existing
* instance, according to that implementation's concept of 'identity' (i.e. instances that
* are updates / downgrades of one another).
*
* If this returns true, createInstance() will not run, so you should do all update steps in here.
* Otherwise, createInstance() is run as normal.
*/
virtual bool updateInstance() { return false; };
/**
* Creates a new instance.
*
* Returns whether the instance creation was successful (true) or not (false).
*/
virtual bool createInstance() { return false; };
protected:
void setError(QString message) { m_error_message = message; };
private:
QString m_error_message;
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};