Initial FTB support. Allows "tracking" of FTB instances.

logic/tasks/SequentialTask.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include "Task.h"
+
+#include <QQueue>
+#include <memory>
+
+class SequentialTask : public Task
+{
+	Q_OBJECT
+public:
+	explicit SequentialTask(QObject *parent = 0);
+
+	virtual QString getStatus() const;
+	virtual void getProgress(qint64 &current, qint64 &total);
+
+	void addTask(std::shared_ptr<Task> task);
+
+protected:
+	void executeTask();
+
+private
+slots:
+	void startNext();
+	void subTaskFailed(const QString &msg);
+	void subTaskStatus(const QString &msg);
+	void subTaskProgress();
+
+private:
+	QQueue<std::shared_ptr<Task> > m_queue;
+	int m_currentIndex;
+};