Registration of Qt Protobuf types is moved into auto-generated code

- updated qtprotobufgen test respectively

Task-number: QTBUG-104513
Pick-to: 6.6
Change-Id: I6b7c4a963602e6885c9f7412485c6c49c057081b
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/tools/qtprotobufgen/qprotobufgenerator.cpp

@@ -156,7 +156,7 @@ bool QProtobufGenerator::GenerateAll(const std::vector<const FileDescriptor *> &
         for (const FileDescriptor *file: files) {
             GenerateQmlPluginSource(file, registrationPluginPrinter);
         }
-
+        registrationPluginPrinter->Print(CommonTemplates::QmlRegisterProtobufTypes());
         registrationPluginPrinter->Indent();
         registrationPluginPrinter->Indent();
         registrationPluginPrinter->Print(CommonTemplates::SimpleBlockEnclosureTemplate());
@@ -182,9 +182,10 @@ void QProtobufGenerator::GenerateQmlPluginIntro(Printer *printer,
     }
     printDisclaimer(printer);
 
-    const std::array<std::string, 3> qmlHeaders = {"QtQml/qqmlextensionplugin.h",
+    const std::array<std::string, 4> qmlHeaders = {"QtQml/qqmlextensionplugin.h",
                                                    "QtQml/qqml.h",
-                                                   "QtQml/qqmlengine.h"};
+                                                   "QtQml/qqmlengine.h",
+                                                   "QtProtobuf/qtprotobuftypes.h"};
     for (const auto &header : qmlHeaders) {
         printer->Print({{"include", header}},
                        CommonTemplates::ExternalIncludeTemplate());

src/tools/qtprotoccommon/commontemplates.cpp

@@ -947,6 +947,11 @@ const char *CommonTemplates::QmlRegisterMessageTypeTemplate()
            "but not create its instances in QML scope.\");\n";
 }
 
+const char *CommonTemplates::QmlRegisterProtobufTypes()
+{
+    return "        qRegisterProtobufTypes();\n";
+}
+
 const char *CommonTemplates::RepeatedSuffix()
 {
     return "Repeated";

src/tools/qtprotoccommon/commontemplates.h

@@ -184,6 +184,7 @@ public:
     static const char *QmlRegisterTypeTemplate();
     static const char *QmlRegisterGlobalEnumTypeTemplate();
     static const char *QmlRegisterMessageTypeTemplate();
+    static const char *QmlRegisterProtobufTypes();
 
     static const char *RepeatedSuffix();
     static const char *ProtoFileSuffix();

tests/auto/protobufgen/data/expected_result/qml-no-package/nopackage_uri_testplugin.cpp

@@ -3,6 +3,7 @@
 #include <QtQml/qqmlextensionplugin.h>
 #include <QtQml/qqml.h>
 #include <QtQml/qqmlengine.h>
+#include <QtProtobuf/qtprotobuftypes.h>
 #include "nopackage.qpb.h"
 #include "nopackageexternal.qpb.h"
 
@@ -21,6 +22,7 @@ public:
         qmlRegisterUncreatableMetaObject(
             ::TestEnumGadget::staticMetaObject,
             uri, 1, 0, "TestEnum", "You can only use the nested enums of TestEnum, but not create its instances in QML scope.");
+        qRegisterProtobufTypes();
     }
 
 };

tests/auto/protobufgen/data/expected_result/qmlgen/qtprotobufnamespace_testsplugin.cpp

@@ -3,6 +3,7 @@
 #include <QtQml/qqmlextensionplugin.h>
 #include <QtQml/qqml.h>
 #include <QtQml/qqmlengine.h>
+#include <QtProtobuf/qtprotobuftypes.h>
 #include "basicmessages.qpb.h"
 #include "enummessages.qpb.h"
 
@@ -33,6 +34,7 @@ public:
         qmlRegisterUncreatableMetaObject(
             qtprotobufnamespace::tests::TestEnumSecondInFileGadget::staticMetaObject,
             uri, 1, 0, "TestEnumSecondInFile", "You can only use the nested enums of TestEnumSecondInFile, but not create its instances in QML scope.");
+        qRegisterProtobufTypes();
     }
 
 };