pollymc/launcher/tasks/Task.h

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/* Copyright 2013-2021 MultiMC Contributors
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*
* 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
*
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* 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.
*/
#pragma once
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#include <QObject>
#include <QString>
#include <QStringList>
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#include "QObjectPtr.h"
class Task : public QObject
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{
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Q_OBJECT
public:
using Ptr = shared_qobject_ptr<Task>;
enum class State
{
Inactive,
Running,
Succeeded,
Failed,
AbortedByUser
};
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public:
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explicit Task(QObject *parent = 0);
virtual ~Task() {};
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bool isRunning() const;
bool isFinished() const;
bool wasSuccessful() const;
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/*!
* Returns the string that was passed to emitFailed as the error message when the task failed.
* If the task hasn't failed, returns an empty string.
*/
QString failReason() const;
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virtual QStringList warnings() const;
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virtual bool canAbort() const { return false; }
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QString getStatus()
{
return m_status;
}
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qint64 getProgress()
{
return m_progress;
}
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qint64 getTotalProgress()
{
return m_progressTotal;
}
protected:
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void logWarning(const QString & line);
private:
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QString describe();
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signals:
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void started();
void progress(qint64 current, qint64 total);
void finished();
void succeeded();
void failed(QString reason);
void status(QString status);
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public slots:
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virtual void start();
virtual bool abort() { return false; };
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protected:
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virtual void executeTask() = 0;
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protected slots:
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virtual void emitSucceeded();
virtual void emitAborted();
virtual void emitFailed(QString reason);
public slots:
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void setStatus(const QString &status);
void setProgress(qint64 current, qint64 total);
private:
State m_state = State::Inactive;
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QStringList m_Warnings;
QString m_failReason = "";
QString m_status;
int m_progress = 0;
int m_progressTotal = 100;
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};
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