[API] Expose an element's children

src/engraving/api/v1/scoreelement.cpp

@@ -74,6 +74,11 @@ qreal ScoreElement::spatium() const
     return e->isEngravingItem() ? toEngravingItem(e)->spatium() : e->score()->style().spatium();
 }
 
+QQmlListProperty<ScoreElement> ScoreElement::children()
+{
+    return wrapContainerProperty<ScoreElement>(this, e->children());
+}
+
 //---------------------------------------------------------
 //   ScoreElement::get
 //---------------------------------------------------------

src/engraving/api/v1/scoreelement.h

@@ -34,6 +34,7 @@ class EngravingObject;
 }
 
 namespace mu::engraving::apiv1 {
+class ScoreElement;
 //---------------------------------------------------------
 //   Ownership
 ///   \cond PLUGIN_API \private \endcond
@@ -68,6 +69,9 @@ class ScoreElement : public QObject
     /// The EID of this element.
     /// \since MuseScore 4.6
     Q_PROPERTY(QString eid READ eid)
+    /// The children of this element. Does not include children of children.
+    /// \since MuseScore 4.7
+    Q_PROPERTY(QQmlListProperty<apiv1::ScoreElement> children READ children)
 
     Ownership m_ownership;
 
@@ -97,6 +101,8 @@ class ScoreElement : public QObject
 
     QString eid() const { return QString::fromStdString(element()->eid().toStdString()); }
 
+    QQmlListProperty<apiv1::ScoreElement> children();
+
     QVariant get(mu::engraving::Pid pid) const;
     void set(mu::engraving::Pid pid, const QVariant& val);
     void reset(mu::engraving::Pid pid);