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#include "SequentialTask.h"
SequentialTask::SequentialTask(QObject *parent) : Task(parent), m_currentIndex(-1)
{
}
void SequentialTask::addTask(std::shared_ptr<Task> task)
{
m_queue.append(task);
}
void SequentialTask::executeTask()
{
m_currentIndex = -1;
startNext();
}
void SequentialTask::startNext()
{
if (m_currentIndex != -1)
{
std::shared_ptr<Task> previous = m_queue[m_currentIndex];
disconnect(previous.get(), 0, this, 0);
}
m_currentIndex++;
if (m_queue.isEmpty() || m_currentIndex >= m_queue.size())
{
emitSucceeded();
return;
}
std::shared_ptr<Task> next = m_queue[m_currentIndex];
connect(next.get(), SIGNAL(failed(QString)), this, SLOT(subTaskFailed(QString)));
connect(next.get(), SIGNAL(status(QString)), this, SLOT(subTaskStatus(QString)));
connect(next.get(), SIGNAL(progress(qint64, qint64)), this, SLOT(subTaskProgress(qint64, qint64)));
connect(next.get(), SIGNAL(succeeded()), this, SLOT(startNext()));
next->start();
}
void SequentialTask::subTaskFailed(const QString &msg)
{
emitFailed(msg);
}
void SequentialTask::subTaskStatus(const QString &msg)
{
setStatus(msg);
}
void SequentialTask::subTaskProgress(qint64 current, qint64 total)
{
if(total == 0)
{
setProgress(0, 100);
return;
}
setProgress(current, total);
}
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