FactPanelController.cc 4.6 KB
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/****************************************************************************
 *
 *   (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/
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#include "FactPanelController.h"
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#include "MultiVehicleManager.h"
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#include "UAS.h"
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#include "QGCApplication.h"
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#include "ParameterManager.h"
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#include <QQmlEngine>

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/// @file
///     @author Don Gagne <don@thegagnes.com>

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QGC_LOGGING_CATEGORY(FactPanelControllerLog, "FactPanelControllerLog")

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FactPanelController::FactPanelController(bool standaloneUnitTesting)
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    : _vehicle(NULL)
    , _uas(NULL)
    , _autopilot(NULL)
    , _factPanel(NULL)
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{
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    _vehicle = qgcApp()->toolbox()->multiVehicleManager()->activeVehicle();
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    if (_vehicle) {
        _uas = _vehicle->uas();
        _autopilot = _vehicle->autopilotPlugin();
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    } else {
        _vehicle = qgcApp()->toolbox()->multiVehicleManager()->offlineEditingVehicle();
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    }
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    if (!standaloneUnitTesting) {
        // Do a delayed check for the _factPanel finally being set correctly from Qml
        QTimer::singleShot(1000, this, &FactPanelController::_checkForMissingFactPanel);
    }
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}

QQuickItem* FactPanelController::factPanel(void)
{
    return _factPanel;
}

void FactPanelController::setFactPanel(QQuickItem* panel)
{
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    // Once we finally have the _factPanel member set, send any
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    // missing fact notices that were waiting to go out
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    _factPanel = panel;
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    foreach (const QString &missingParam, _delayedMissingParams) {
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        _notifyPanelMissingParameter(missingParam);
    }
    _delayedMissingParams.clear();
}

void FactPanelController::_notifyPanelMissingParameter(const QString& missingParam)
{
    if (_factPanel) {
        QVariant returnedValue;

        QMetaObject::invokeMethod(_factPanel,
                                  "showMissingParameterOverlay",
                                  Q_RETURN_ARG(QVariant, returnedValue),
                                  Q_ARG(QVariant, missingParam));
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    }
}

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void FactPanelController::_notifyPanelErrorMsg(const QString& errorMsg)
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{
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    if (_factPanel) {
        QVariant returnedValue;
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        QMetaObject::invokeMethod(_factPanel,
                                  "showError",
                                  Q_RETURN_ARG(QVariant, returnedValue),
                                  Q_ARG(QVariant, errorMsg));
    }
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}

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void FactPanelController::_reportMissingParameter(int componentId, const QString& name)
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{
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    qgcApp()->reportMissingParameter(componentId, name);
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    QString missingParam = QString("%1:%2").arg(componentId).arg(name);
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    // If missing parameters a reported from the constructor of a derived class we
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    // will not have access to _factPanel yet. Just record list of missing facts
    // in that case instead of notify. Once _factPanel is available they will be
    // send out for real.
    if (_factPanel) {
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        _notifyPanelMissingParameter(missingParam);
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    } else {
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        _delayedMissingParams += missingParam;
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    }
}

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bool FactPanelController::_allParametersExists(int componentId, QStringList names)
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{
    bool noMissingFacts = true;
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    foreach (const QString &name, names) {
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        if (_vehicle && !_vehicle->parameterManager()->parameterExists(componentId, name)) {
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            _reportMissingParameter(componentId, name);
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            noMissingFacts = false;
        }
    }
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    return noMissingFacts;
}

void FactPanelController::_checkForMissingFactPanel(void)
{
    if (!_factPanel) {
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        _showInternalError("Incorrect FactPanel Qml implementation. FactPanelController used without passing in factPanel.");
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    }
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}

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Fact* FactPanelController::getParameterFact(int componentId, const QString& name, bool reportMissing)
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{
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    if (_vehicle && _vehicle->parameterManager()->parameterExists(componentId, name)) {
        Fact* fact = _vehicle->parameterManager()->getParameter(componentId, name);
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        QQmlEngine::setObjectOwnership(fact, QQmlEngine::CppOwnership);
        return fact;
    } else {
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        if (reportMissing) {
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            _reportMissingParameter(componentId, name);
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        }
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        return NULL;
    }
}

bool FactPanelController::parameterExists(int componentId, const QString& name)
{
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    return _vehicle ? _vehicle->parameterManager()->parameterExists(componentId, name) : false;
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}

void FactPanelController::_showInternalError(const QString& errorMsg)
{
    _notifyPanelErrorMsg(QString("Internal Error: %1").arg(errorMsg));
    qCWarning(FactPanelControllerLog) << "Internal Error" << errorMsg;
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    qgcApp()->showMessage(errorMsg);
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}