104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
/* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <QObject>
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#include <QString>
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#include <QStringList>
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#include "QObjectPtr.h"
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class Task : public QObject {
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Q_OBJECT
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public:
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using Ptr = shared_qobject_ptr<Task>;
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enum class State { Inactive, Running, Succeeded, Failed, AbortedByUser };
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public:
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explicit Task(QObject* parent = 0);
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virtual ~Task() = default;
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bool isRunning() const;
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bool isFinished() const;
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bool wasSuccessful() const;
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/*!
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* MultiStep tasks are combinations of multiple tasks into a single logical task.
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* The main usage of this is in SequencialTask.
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*/
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virtual auto isMultiStep() const -> bool { return false; }
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/*!
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* Returns the string that was passed to emitFailed as the error message when the task failed.
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* If the task hasn't failed, returns an empty string.
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*/
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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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auto getState() const -> State { return m_state; }
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QString getStatus() { return m_status; }
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virtual auto getStepStatus() const -> QString { return m_status; }
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qint64 getProgress() { return m_progress; }
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qint64 getTotalProgress() { return m_progressTotal; }
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virtual auto getStepProgress() const -> qint64 { return 0; }
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virtual auto getStepTotalProgress() const -> qint64 { return 100; }
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protected:
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void logWarning(const QString& line);
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private:
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QString describe();
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signals:
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void started();
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virtual void progress(qint64 current, qint64 total);
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void finished();
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void succeeded();
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void aborted();
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void failed(QString reason);
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void status(QString status);
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public slots:
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virtual void start();
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virtual bool abort() { if(canAbort()) emitAborted(); return canAbort(); };
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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();
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virtual void emitAborted();
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virtual void emitFailed(QString reason = "");
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public slots:
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void setStatus(const QString& status);
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void setProgress(qint64 current, qint64 total);
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protected:
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State m_state = State::Inactive;
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QStringList m_Warnings;
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QString m_failReason = "";
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QString m_status;
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int m_progress = 0;
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int m_progressTotal = 100;
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};
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