Fix qmlClearTypeRegistrations for Qt 3D

Unregister valueTypeProvider in qtquick_global.cpp to prevent multiple
registrations. The Quick3DColorProvider doesn't seem to cause problems
so leave as it is.

Task-number: QTBUG-56546
Change-Id: I79139d8e8ab80458e72633dd97e15dbf108388e4
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

4 files changed, 13 insertions, 1 deletions

diff --git a/src/quick3d/imports/core/qt3dquick3dcoreplugin.cpp b/src/quick3d/imports/core/qt3dquick3dcoreplugin.cpp
index 6d2a78166..3ff63d9d9 100644
--- a/src/quick3d/imports/core/qt3dquick3dcoreplugin.cpp
+++ b/src/quick3d/imports/core/qt3dquick3dcoreplugin.cpp
@@ -71,4 +71,9 @@ void Qt3DQuick3DCorePlugin::registerTypes(const char *uri)
     qmlRegisterExtendedUncreatableType<Qt3DCore::QNode, Qt3DCore::Quick::Quick3DNodeV9, 9>(uri, 2, 9, "Node", QStringLiteral("Node is a base class"));
 }
 
+Qt3DQuick3DCorePlugin::~Qt3DQuick3DCorePlugin()
+{
+    Qt3DCore::Quick::Quick3D_uninitialize();
+}
+
 QT_END_NAMESPACE
diff --git a/src/quick3d/imports/core/qt3dquick3dcoreplugin.h b/src/quick3d/imports/core/qt3dquick3dcoreplugin.h
index a9b215c4a..b0ef5947c 100644
--- a/src/quick3d/imports/core/qt3dquick3dcoreplugin.h
+++ b/src/quick3d/imports/core/qt3dquick3dcoreplugin.h
@@ -57,6 +57,7 @@ class Qt3DQuick3DCorePlugin : public QQmlExtensionPlugin
     Q_PLUGIN_METADATA(IID QQmlExtensionInterface_iid)
 public:
     Qt3DQuick3DCorePlugin(QObject *parent = nullptr) : QQmlExtensionPlugin(parent) { initResources(); }
+    ~Qt3DQuick3DCorePlugin();
     void registerTypes(const char *uri) Q_DECL_OVERRIDE;
 };
 
diff --git a/src/quick3d/quick3d/qt3dquick_global.cpp b/src/quick3d/quick3d/qt3dquick_global.cpp
index ebf27e7ae..a98211991 100644
--- a/src/quick3d/quick3d/qt3dquick_global.cpp
+++ b/src/quick3d/quick3d/qt3dquick_global.cpp
@@ -659,9 +659,9 @@ public:
 #undef ASSERT_VALID_SIZE
 };
 
+static Quick3DValueTypeProvider valueTypeProvider;
 static Quick3DValueTypeProvider *getValueTypeProvider()
 {
-    static Quick3DValueTypeProvider valueTypeProvider;
     return &valueTypeProvider;
 }
 
@@ -706,6 +706,11 @@ void Quick3D_initialize()
     QQmlPrivate::qmlregister(QQmlPrivate::AutoParentRegistration, &autoparent);
 }
 
+void Quick3D_uninitialize()
+{
+    QQml_removeValueTypeProvider(&valueTypeProvider);
+}
+
 void Quick3D_registerType(const char *className, const char *quickName, int major, int minor)
 {
     QuickNodeFactory::instance()->registerType(className, quickName, major, minor);
diff --git a/src/quick3d/quick3d/qt3dquick_global_p.h b/src/quick3d/quick3d/qt3dquick_global_p.h
index d67209404..ffc603f91 100644
--- a/src/quick3d/quick3d/qt3dquick_global_p.h
+++ b/src/quick3d/quick3d/qt3dquick_global_p.h
@@ -62,6 +62,7 @@ namespace Qt3DCore {
 namespace Quick {
 
 QT3DQUICKSHARED_PRIVATE_EXPORT void Quick3D_initialize();
+QT3DQUICKSHARED_PRIVATE_EXPORT void Quick3D_uninitialize();
 QT3DQUICKSHARED_PRIVATE_EXPORT void Quick3D_registerType(const char *className, const char *quickName, int major, int minor);
 
 template<class T, class E> void registerExtendedType(const char *className, const char *quickName,