NOISSUE some safe refactors and changes of the task subsystem

Possibly also some bug fixes.

api/logic/tasks/Task.cpp

@@ -76,7 +76,7 @@ bool Task::isFinished() const
 	return m_finished;
 }
 
-bool Task::successful() const
+bool Task::wasSuccessful() const
 {
 	return m_succeeded;
 }

api/logic/tasks/Task.h

@@ -27,21 +27,15 @@ public:
 	explicit Task(QObject *parent = 0);
 	virtual ~Task() {};
 
-	virtual bool isRunning() const;
-
-	virtual bool isFinished() const;
-
-	/*!
-	 * True if this task was successful.
-	 * If the task failed or is still running, returns false.
-	 */
-	virtual bool successful() const;
+	bool isRunning() const;
+	bool isFinished() const;
+	bool wasSuccessful() const;
 
 	/*!
 	 * 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.
 	 */
-	virtual QString failReason() const;
+	QString failReason() const;
 
 	virtual bool canAbort() const { return false; }
 
@@ -68,8 +62,7 @@ signals:
 	void failed(QString reason);
 	void status(QString status);
 
-public
-slots:
+public slots:
 	virtual void start();
 	virtual bool abort() { return false; };
 
@@ -84,7 +77,7 @@ public slots:
 	void setStatus(const QString &status);
 	void setProgress(qint64 current, qint64 total);
 
-protected:
+private:
 	bool m_running = false;
 	bool m_finished = false;
 	bool m_succeeded = false;

api/logic/tasks/ThreadTask.cpp

@@ -1,41 +0,0 @@
-#include "ThreadTask.h"
-#include <QtConcurrentRun>
-ThreadTask::ThreadTask(Task * internal, QObject *parent) : Task(parent), m_internal(internal)
-{
-}
-
-void ThreadTask::start()
-{
-	connect(m_internal, SIGNAL(failed(QString)), SLOT(iternal_failed(QString)));
-	connect(m_internal, SIGNAL(progress(qint64,qint64)), SLOT(iternal_progress(qint64,qint64)));
-	connect(m_internal, SIGNAL(started()), SLOT(iternal_started()));
-	connect(m_internal, SIGNAL(status(QString)), SLOT(iternal_status(QString)));
-	connect(m_internal, SIGNAL(succeeded()), SLOT(iternal_succeeded()));
-	m_running = true;
-	QtConcurrent::run(m_internal, &Task::start);
-}
-
-void ThreadTask::iternal_failed(QString reason)
-{
-	emitFailed(reason);
-}
-
-void ThreadTask::iternal_progress(qint64 current, qint64 total)
-{
-	progress(current, total);
-}
-
-void ThreadTask::iternal_started()
-{
-	emit started();
-}
-
-void ThreadTask::iternal_status(QString status)
-{
-	setStatus(status);
-}
-
-void ThreadTask::iternal_succeeded()
-{
-	emitSucceeded();
-}

api/logic/tasks/ThreadTask.h

@@ -1,26 +0,0 @@
-#pragma once
-
-#include "Task.h"
-#include "multimc_logic_export.h"
-
-class MULTIMC_LOGIC_EXPORT ThreadTask : public Task
-{
-	Q_OBJECT
-public:
-	explicit ThreadTask(Task * internal, QObject * parent = nullptr);
-
-protected:
-	void executeTask() {};
-
-public slots:
-	virtual void start();
-
-private slots:
-	void iternal_started();
-	void iternal_progress(qint64 current, qint64 total);
-	void iternal_succeeded();
-	void iternal_failed(QString reason);
-	void iternal_status(QString status);
-private:
-	Task * m_internal;
-};