Change QJSValue properties to QList<QGeoCoordinate/Rectangle>

The QML engine is able to operate on lists of gadgets, there is no need
for using private APIs to operate on QJSValue.

For the time being, this breaks a QML construct like

    path[0].longitude = 0

This no longer changes the value of path[0].latitude in place. Instead,
use

    var path0 = path[0]
    path0.longitude = ...
    path[0] = path0

This is consistent with other properties that have type list<gadget>, as
QML operates on copies of values, not on references. Adapt the test case
accordingly.

Since support for value-initializing properties of type list<gadget>
requires plumbing in the QML engine, and registration of conversion
routines from QVariantMap to QGeoCoordinate, augment the test.

Remove the now unnecessary toList/fromList conversion functions, and
the dependency to private QtQml libraries.

Fixes: QTBUG-105241
Change-Id: I8f248c457a6de27a3b2680bdc948c5683ebc7fa0
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

1 files changed, 4 insertions, 7 deletions

diff --git a/src/location/declarativemaps/qdeclarativepolylinemapitem.cpp b/src/location/declarativemaps/qdeclarativepolylinemapitem.cpp
index 5d9fbb0b..2ae6ed6f 100644
--- a/src/location/declarativemaps/qdeclarativepolylinemapitem.cpp
+++ b/src/location/declarativemaps/qdeclarativepolylinemapitem.cpp
@@ -966,17 +966,14 @@ void QDeclarativePolylineMapItem::setMap(QDeclarativeGeoMap *quickMap, QGeoMap *
     define the polyline.
 */
 
-QJSValue QDeclarativePolylineMapItem::path() const
+QList<QGeoCoordinate> QDeclarativePolylineMapItem::path() const
 {
-    return fromList(this, m_geopath.path());
+    return m_geopath.path();
 }
 
-void QDeclarativePolylineMapItem::setPath(const QJSValue &value)
+void QDeclarativePolylineMapItem::setPath(const QList<QGeoCoordinate> &value)
 {
-    if (!value.isArray())
-        return;
-
-    setPathFromGeoList(toList(this, value));
+    setPathFromGeoList(value);
 }
 
 /*!