Expose QJsonObject as QProperty

Mesrine

Hi everyone,

I have a class that is a QML_ELEMENT like

//file.hpp
class DropBox :public QObject
{
    Q_OBJECT
    Q_PROPERTY(QJsonObject  amountJson READ getAmountJson  NOTIFY amountJsonChanged)
    QML_ELEMENT
   QML_SINGLETON
...

When using it as singleton in QML as

//File.qml
jsob:(Node_Conection.state)?DropBox.amountJson:{}

This works but if I run the qmllint it returns

Warning: /../../BoxMenu.qml:45:53: Type "QJsonObject" of property "amountJson" not found. This is likely due to a missing dependency entry or a type not being exposed declaratively. [unresolved-type]
            jsob:(Node_Conection.state)?DropBox.amountJson:{}

So what is the best practice to expose a QJsonObject property to QML from C++.

Another question,

If using the object not as a singleton but like

//file.hpp
class DropBox :public QObject
{
    Q_OBJECT
    Q_PROPERTY(QJsonObject  amountJson READ getAmountJson  NOTIFY amountJsonChanged)
    QML_ELEMENT
...

And using the class in a QAbstractListModel

like

/file.hpp
class BoxModel : public QAbstractListModel
{
    Q_OBJECT
    Q_PROPERTY(int count READ count NOTIFY countChanged)
    QML_ELEMENT
...
QList<DropBox*> boxes;

In the qml delegate I normally write

//Delegate.qml
Rectangle
{
    id:root
    required property var amountJson;

So the delegate can get the property from the C++ model and object.

Is that the correct way to define a QJsonObject variable in qml? like using variable type 'var'?