QmlDesigner: Disable "Edit Component" for effect composer effects

These components are autogenerated and overwritten by effect composer,
so a regular user has no reason to modify them manually.

Fixes: QDS-9020
Change-Id: Ida6706f123a8304944a19364c59620b8d9b4adbb
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>

src/plugins/effectcomposer/effectcomposermodel.cpp

@@ -577,6 +577,7 @@ QString EffectComposerModel::getQmlEffectString()
     QString header{
 R"(
 // Created with Qt Design Studio (version %1), %2
+// Do not manually edit this file, it will be overwritten if effect is modified in Qt Design Studio.
 
 import QtQuick
 

src/plugins/qmldesigner/components/componentcore/designeractionmanager.cpp

@@ -1896,7 +1896,7 @@ void DesignerActionManager::createDefaultDesignerActions()
                                                      QKeySequence(Qt::Key_F2),
                                                      Priorities::ComponentActions + 2,
                                                      &goIntoComponentOperation,
-                                                     &selectionIsComponent));
+                                                     &selectionIsEditableComponent));
 
     addDesignerAction(new ModelNodeContextMenuAction(jumpToCodeCommandId,
                                                      JumpToCodeDisplayName,

src/plugins/qmldesigner/components/componentcore/modelnodecontextmenu_helper.cpp

@@ -89,10 +89,10 @@ bool fileComponentExists(const ModelNode &modelNode)
     return QFileInfo::exists(fileName);
 }
 
-bool selectionIsComponent(const SelectionContext &selectionState)
+bool selectionIsEditableComponent(const SelectionContext &selectionState)
 {
-    return selectionState.currentSingleSelectedNode().isComponent()
+    ModelNode node = selectionState.currentSingleSelectedNode();
-           && fileComponentExists(selectionState.currentSingleSelectedNode());
+    return node.isComponent() && !QmlItemNode(node).isEffectItem() && fileComponentExists(node);
 }
 
 bool selectionIsImported3DAsset(const SelectionContext &selectionState)

src/plugins/qmldesigner/components/componentcore/modelnodecontextmenu_helper.h

@@ -124,7 +124,7 @@ inline bool singleSelectedItem(const SelectionContext &selectionState)
 }
 
 bool selectionHasSameParent(const SelectionContext &selectionState);
-bool selectionIsComponent(const SelectionContext &selectionState);
+bool selectionIsEditableComponent(const SelectionContext &selectionState);
 bool singleSelectionItemIsAnchored(const SelectionContext &selectionState);
 bool singleSelectionItemIsNotAnchored(const SelectionContext &selectionState);
 bool selectionIsImported3DAsset(const SelectionContext &selectionState);

src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp

@@ -749,7 +749,8 @@ QString PropertyEditorQmlBackend::templateGeneration(const NodeMetaInfo &metaTyp
     qmlTemplate += "Column {\n";
     qmlTemplate += "width: parent.width\n";
 
-    if (node.modelNode().isComponent())
+    bool isEditableComponent = node.modelNode().isComponent() && !QmlItemNode(node).isEffectItem();
+    if (isEditableComponent)
         qmlTemplate += "ComponentButton {}\n";
 
     QString qmlInnerTemplate = "";

src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp

@@ -574,8 +574,10 @@ void PropertyEditorView::setupQmlBackend()
 {
     if constexpr (useProjectStorage()) {
         auto selfAndPrototypes = m_selectedNode.metaInfo().selfAndPrototypes();
+        bool isEditableComponent = m_selectedNode.isComponent()
+                                   && !QmlItemNode(m_selectedNode).isEffectItem();
         auto specificQmlData = m_propertyEditorComponentGenerator.create(selfAndPrototypes,
-                                                                         m_selectedNode.isComponent());
+                                                                         isEditableComponent);
         auto [panePath, specificsPath] = findPaneAndSpecificsPath(selfAndPrototypes,
                                                                   model()->pathCache());
         PropertyEditorQmlBackend *currentQmlBackend = getQmlBackend(m_qmlBackendHash,