qt-everywhere-src-5.14.1/qtlocation/src/positioningquick/qdeclarativepluginparameter.cpp

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#include "qdeclarativepluginparameter_p.h"

QT_BEGIN_NAMESPACE

/*!
    \qmltype PluginParameter
    //! \instantiates QDeclarativePluginParameter
    \inqmlmodule QtPositioning
    \ingroup qml-QtPositioning5-common
    \since QtPositioning 5.14

    \brief The PluginParameter type describes a parameter for a plugin, either
    geoservice \l Plugin, or position plugin.

    The PluginParameter object is used to provide a parameter of some kind
    to a plugin. Typically these parameters contain details like an application
    token for access to a service, or a proxy server to use for network access,
    or the serial port to which a serial GPS receiver is connected.

    To set such a parameter, declare a PluginParameter inside an element that accepts
    plugin parameters as configuration objects, such as a \l Plugin object, or a
    \l PositionSource object, and give it \l{name} and \l{value} properties. A list of valid
    parameter names for each plugin is available from the
    \l {Qt Location#Plugin References and Parameters}{plugin reference pages} for geoservice plugins,
    and \l {Qt Positioning plugins#Default plugins} for position plugins.

    \section2 Example Usage

    The following example shows an instantiation of the \l {Qt Location HERE Plugin}{HERE} plugin
    with a mapping API \e app_id and \e token pair specific to the application.

    \code
    Plugin {
        name: "here"
        PluginParameter { name: "here.app_id"; value: "EXAMPLE_API_ID" }
        PluginParameter { name: "here.token"; value: "EXAMPLE_TOKEN_123" }
    }
    \endcode
*/

/*!
    \qmlproperty string PluginParameter::name

    This property holds the name of the plugin parameter as a single formatted string.
    This property is a write-once property.
*/

/*!
    \qmlproperty QVariant PluginParameter::value

    This property holds the value of the plugin parameter which support different types of values (variant).
    This property is a write-once property.
*/

QDeclarativePluginParameter::QDeclarativePluginParameter(QObject *parent)
    : QObject(parent) {}

QDeclarativePluginParameter::~QDeclarativePluginParameter() {}

void QDeclarativePluginParameter::setName(const QString &name)
{
    if (!name_.isEmpty() || name.isEmpty())
        return;

    name_ = name;

    emit nameChanged(name_);
    if (value_.isValid())
        emit initialized();
}

QString QDeclarativePluginParameter::name() const
{
    return name_;
}

void QDeclarativePluginParameter::setValue(const QVariant &value)
{
    if (value_.isValid() || !value.isValid() || value.isNull())
        return;

    value_ = value;

    emit valueChanged(value_);
    if (!name_.isEmpty())
        emit initialized();
}

QVariant QDeclarativePluginParameter::value() const
{
    return value_;
}

bool QDeclarativePluginParameter::isInitialized() const
{
    return !name_.isEmpty() && value_.isValid();
}

QT_END_NAMESPACE