QtMvvm/examples/mvvmcore/SampleCore/sampleviewmodel.cpp

#include "sampleviewmodel.h"
#include <QtCore/QTimer>
#include <QtCore/QDebug>
#include <QtMvvmCore/Messages>
#include <QtMvvmCore/SettingsViewModel>
#include "resultviewmodel.h"
#include "tabviewmodel.h"

const QString SampleViewModel::KeyActive = QStringLiteral("active");
const QString SampleViewModel::KeyNames = QStringLiteral("names");

SampleViewModel::SampleViewModel(QObject *parent) :
	ViewModel(parent),
	_name(),
	_active(false),
	_eventsModel(new QStringListModel(this)),
	_eventService(nullptr),
	_eventId(-1)
{}

SampleViewModel::~SampleViewModel()
{
	qInfo(Q_FUNC_INFO);
	setActive(false);
}

QString SampleViewModel::name() const
{
	return _name;
}

bool SampleViewModel::active() const
{
	return _active;
}

QStringListModel *SampleViewModel::eventsModel() const
{
	return _eventsModel;
}

void SampleViewModel::setName(QString name)
{
	if (_name == name)
		return;

	_name = std::move(name);
	emit nameChanged(_name);
	if(_active && _eventService) {
		_eventService->removeEvent(_eventId);
		_eventId = _eventService->addEvent(_name);
	}
}

void SampleViewModel::setActive(bool active)
{
	if (_active == active)
		return;

	_active = active;
	if(_eventService) {
		if(_active)
			_eventId = _eventService->addEvent(_name);
		else
			_eventService->removeEvent(_eventId);
	}
	emit activeChanged(_active);
}

void SampleViewModel::showTabs()
{
	show<TabItemViewModel>({
							   {QStringLiteral("title"), QStringLiteral("Root Tab")}
						   });
}

void SampleViewModel::showSettings()
{
	show<QtMvvm::SettingsViewModel>();
}

void SampleViewModel::getInput()
{
	QtMvvm::getInput<int>(tr("Random input"),
						  tr("Enter a number:"),
						  this, [this](int res, bool ok) {
		if(ok)
			addEvent(QString::number(res));
	}, 42);
}

void SampleViewModel::getFiles()
{
	QtMvvm::getOpenFiles(this, [this](const QList<QUrl> &urls) {
		for(const auto &url : urls)
			addEvent(url.toString());
	}, tr("Open Files:"), {QStringLiteral("text/plain"), QStringLiteral("application/pdf")});
}

void SampleViewModel::getColor()
{
	QtMvvm::getColor(this, [this](const QColor &color) {
		if(color.isValid())
			addEvent(color.name(QColor::HexArgb));
	}, tr("Select a color:"), true);
}

void SampleViewModel::showProgress()
{
	auto control = QtMvvm::showIndeterminateProgress(this,
													 tr("Some ongoing operation"),
													 tr("Doing some operation long running job…"));
	auto mTimer = new QTimer{control};
	connect(mTimer, &QTimer::timeout,
			control, [control](){
		if(control->isIndeterminate()) {
			control->setIndeterminate(false);
			control->setMinimum(0);
			control->setMaximum(5);
			control->setProgress(0);
		} else if(control->progress() == 4) {
			control->setProgress(5);
			control->close();
		} else
			control->setProgress(control->progress() + 1);
	});
	connect(control, &QtMvvm::ProgressControl::canceled,
			control, [control, mTimer](){
		control->updateLabel(tr("<i>Canceling, please wait…</i>"));
		mTimer->stop();
		QTimer::singleShot(2000, control, &QtMvvm::ProgressControl::close);
	});
	connect(control, &QtMvvm::ProgressControl::closed,
			mTimer, &QTimer::stop);

	mTimer->start(2000);
}

void SampleViewModel::getResult()
{
	showForResult<ResultViewModel>(ResCode, {
									   {QStringLiteral("default"), _name}
								   });
}

void SampleViewModel::clearEvents()
{
	QtMvvm::question(tr("Clear Eventlist"),
					 tr("Do you really want to clear the eventlist?"),
					 this, [this](bool res) {
		if(res)
			_eventsModel->setStringList({});
	});
}

void SampleViewModel::about()
{
	QtMvvm::about(tr("QtMvvm sample application"),
				  QStringLiteral("https://github.com/Skycoder42/QtMvvm"),
				  tr("BSD 3 Clause"),
				  QStringLiteral("https://github.com/Skycoder42/QtMvvm/blob/master/LICENSE"));
}

void SampleViewModel::onInit(const QVariantHash &params)
{
	qInfo() << Q_FUNC_INFO << params;
	Q_ASSERT(_eventService);
	connect(dynamic_cast<QObject*>(_eventService), SIGNAL(eventTriggered(QString)),
			this, SLOT(addEvent(QString)));

	auto names = params.value(KeyNames).toStringList();
	if(!names.isEmpty())
		setName(names.join(QLatin1Char(' ')));
	setActive(params.value(KeyActive, false).toBool());
}

void SampleViewModel::onResult(quint32 requestCode, const QVariant &result)
{
	if(requestCode == ResCode && result.isValid())
		addEvent(result.toString());
}

void SampleViewModel::addEvent(const QString &event)
{
	qDebug() << event;
	auto row = _eventsModel->rowCount();
	if(_eventsModel->insertRow(row))
		_eventsModel->setData(_eventsModel->index(row), event);
}