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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
#ifndef CLIENT_UPDATE_CHECKER_H
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#define CLIENT_UPDATE_CHECKER_H
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#include <QObject>
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class Release;
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/**
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* We use a singleton instance of UpdateChannel, which can cause interference and feedback loops when multiple objects
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* connect to it.
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*
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* This class encapsulates the usage of that UpdateChannel to ensure that the check only happens once per connection and
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* the connection is destroyed after it's been used.
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*/
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class ClientUpdateChecker : public QObject
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{
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Q_OBJECT
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QMetaObject::Connection finishedCheckConnection;
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QMetaObject::Connection errorConnection;
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void actFinishedCheck(bool needToUpdate, bool isCompatible, Release *release);
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void actError(const QString &errorString);
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public:
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explicit ClientUpdateChecker(QObject *parent = nullptr);
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/**
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* Actually performs the check, using the currently selected update channel in the settings.
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* Any resulting signals will only be sent once.
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* This method should only be called ONCE per instance.
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*/
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void check();
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signals:
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/**
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* Forwarded from UpdateChannel::finishedCheck
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*/
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void finishedCheck(bool needToUpdate, bool isCompatible, Release *release);
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/**
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* Forwarded from UpdateChannel::error
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*/
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void error(const QString &errorString);
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};
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#endif // CLIENT_UPDATE_CHECKER_H
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