QmlDesigner: Reset puppet when material is added

This is workaround for material rendering issues in quick3d when a
material is shared by multiple windows.

Fixes: QDS-7096
Fixes: QDS-7118
Change-Id: I64fe2e51c5dda8e238502e5d926b6938b7b0731a
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/materialbrowser/materialbrowsermodel.cpp

@@ -120,6 +120,11 @@ void MaterialBrowserModel::setHasModelSelection(bool b)
     emit hasModelSelectionChanged();
 }
 
+QList<ModelNode> MaterialBrowserModel::materials() const
+{
+    return m_materialList;
+}
+
 void MaterialBrowserModel::setSearchText(const QString &searchText)
 {
     QString lowerSearchText = searchText.toLower();

src/plugins/qmldesigner/components/materialbrowser/materialbrowsermodel.h

@@ -58,6 +58,7 @@ public:
     bool hasModelSelection() const;
     void setHasModelSelection(bool b);
 
+    QList<ModelNode> materials() const;
     void setMaterials(const QList<ModelNode> &materials, bool hasQuick3DImport);
     void removeMaterial(const ModelNode &material);
     void updateMaterialName(const ModelNode &material);

src/plugins/qmldesigner/components/materialbrowser/materialbrowserview.cpp

@@ -97,10 +97,12 @@ void MaterialBrowserView::modelAttached(Model *model)
 
     m_widget->clearSearchFilter();
     m_hasQuick3DImport = model->hasImport("QtQuick3D");
-    QTimer::singleShot(0, this, &MaterialBrowserView::refreshModel);
+    QTimer::singleShot(0, this, [this]() {
+        refreshModel(true);
+    });
 }
 
-void MaterialBrowserView::refreshModel()
+void MaterialBrowserView::refreshModel(bool updateImages)
 {
     ModelNode matLib = modelNodeForId(Constants::MATERIAL_LIB_ID);
     QList <ModelNode> materials;
@@ -115,8 +117,10 @@ void MaterialBrowserView::refreshModel()
 
     m_widget->materialBrowserModel()->setMaterials(materials, m_hasQuick3DImport);
 
-    for (const ModelNode &node : std::as_const(materials))
+    if (updateImages) {
-        model()->nodeInstanceView()->previewImageDataForGenericNode(node, {});
+        for (const ModelNode &node : std::as_const(materials))
+            model()->nodeInstanceView()->previewImageDataForGenericNode(node, {});
+    }
 }
 
 bool MaterialBrowserView::isMaterial(const ModelNode &node) const
@@ -204,8 +208,9 @@ void MaterialBrowserView::nodeReparented(const ModelNode &node,
     bool matRemoved = oldParentNode.isValid() && oldParentNode.id() == Constants::MATERIAL_LIB_ID;
 
     if (matAdded || matRemoved) {
-        refreshModel();
+        if (matAdded) // Workaround to fix various material issues all likely caused by QTBUG-103316
-
+            resetPuppet();
+        refreshModel(!matAdded);
         int idx = m_widget->materialBrowserModel()->materialIndex(node);
         m_widget->materialBrowserModel()->selectMaterial(idx);
     }
@@ -252,7 +257,7 @@ void MaterialBrowserView::importsChanged(const QList<Import> &addedImports, cons
         return;
 
     m_hasQuick3DImport = hasQuick3DImport;
-    refreshModel();
+    refreshModel(true);
 }
 
 void MaterialBrowserView::customNotification(const AbstractView *view, const QString &identifier,
@@ -267,6 +272,13 @@ void MaterialBrowserView::customNotification(const AbstractView *view, const QSt
         int idx = m_widget->materialBrowserModel()->materialIndex(nodeList.first());
         if (idx != -1)
             m_widget->materialBrowserModel()->selectMaterial(idx);
+    } else if (identifier == "reset QmlPuppet") {
+        // Little delay is needed to allow puppet reset to actually be done, as it is async as well
+        QTimer::singleShot(200, this, [this]() {
+            const QList<ModelNode> materials = m_widget->materialBrowserModel()->materials();
+            for (const ModelNode &node : materials)
+                model()->nodeInstanceView()->previewImageDataForGenericNode(node, {});
+        });
     }
 }
 

src/plugins/qmldesigner/components/materialbrowser/materialbrowserview.h

@@ -62,7 +62,7 @@ public:
                             const QList<ModelNode> &nodeList, const QList<QVariant> &data) override;
 
 private:
-    void refreshModel();
+    void refreshModel(bool updateImages);
     bool isMaterial(const ModelNode &node) const;
 
     QPointer<MaterialBrowserWidget> m_widget;