Designer: Hide plugin class definition in .cpp

Change-Id: I722fa069e5bd00b3f5f2cbfbe38c0a2e0247dcb5
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

6 files changed, 132 insertions, 154 deletions

diff --git a/src/plugins/designer/CMakeLists.txt b/src/plugins/designer/CMakeLists.txt
index 581f7ec2a7e..3afdfd04877 100644
--- a/src/plugins/designer/CMakeLists.txt
+++ b/src/plugins/designer/CMakeLists.txt
@@ -46,7 +46,7 @@ add_qtc_plugin(Designer
     editordata.h
     editorwidget.cpp editorwidget.h
     formeditorfactory.cpp formeditorfactory.h
-    formeditorplugin.cpp formeditorplugin.h
+    formeditorplugin.cpp
     formeditorstack.cpp formeditorstack.h
     formeditor.cpp formeditor.h
     formtemplatewizardpage.cpp formtemplatewizardpage.h
diff --git a/src/plugins/designer/designer.qbs b/src/plugins/designer/designer.qbs
index bde63fa3eea..2013ccd9f35 100644
--- a/src/plugins/designer/designer.qbs
+++ b/src/plugins/designer/designer.qbs
@@ -53,7 +53,7 @@ QtcPlugin {
             "editordata.h",
             "editorwidget.cpp", "editorwidget.h",
             "formeditorfactory.cpp", "formeditorfactory.h",
-            "formeditorplugin.cpp", "formeditorplugin.h",
+            "formeditorplugin.cpp",
             "formeditorstack.cpp", "formeditorstack.h",
             "formeditor.cpp", "formeditor.h",
             "formtemplatewizardpage.cpp", "formtemplatewizardpage.h",
diff --git a/src/plugins/designer/formeditor.h b/src/plugins/designer/formeditor.h
index 875c8e50904..863c6b120c3 100644
--- a/src/plugins/designer/formeditor.h
+++ b/src/plugins/designer/formeditor.h
@@ -63,5 +63,7 @@ QList<Core::IOptionsPage *> optionsPages();
 void setQtPluginPath(const QString &qtPluginPath);
 void addPluginPath(const QString &pluginPath);
 
+QObject *createGoToSlotTest();
+
 } // namespace Internal
 } // namespace Designer
diff --git a/src/plugins/designer/formeditorplugin.cpp b/src/plugins/designer/formeditorplugin.cpp
index 0f9c77b0b44..9b47bf864a9 100644
--- a/src/plugins/designer/formeditorplugin.cpp
+++ b/src/plugins/designer/formeditorplugin.cpp
@@ -1,8 +1,6 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-#include "formeditorplugin.h"
-
 #include "designerconstants.h"
 #include "designertr.h"
 #include "formeditorfactory.h"
@@ -28,6 +26,8 @@
 
 #include <cppeditor/cppeditorconstants.h>
 
+#include <extensionsystem/iplugin.h>
+
 #include <projectexplorer/jsonwizard/jsonwizardfactory.h>
 
 #include <utils/mimeconstants.h>
@@ -45,103 +45,7 @@ using namespace Core;
 using namespace Designer::Constants;
 using namespace Utils;
 
-namespace Designer {
-namespace Internal {
-
-class FormEditorPluginPrivate
-{
-public:
-    QAction actionSwitchSource{Tr::tr("Switch Source/Form"), nullptr};
-
-    FormEditorFactory formEditorFactory;
-    SettingsPageProvider settingsPageProvider;
-    QtDesignerFormClassCodeGenerator formClassCodeGenerator;
-    FormPageFactory formPageFactory;
-};
-
-FormEditorPlugin::~FormEditorPlugin()
-{
-    deleteInstance();
-    delete d;
-}
-
-static void parseArguments(const QStringList &arguments)
-{
-    const auto doWithNext = [arguments](auto it, const std::function<void(QString)> &fun) {
-        ++it;
-        if (it != arguments.cend())
-            fun(*it);
-    };
-    for (auto it = arguments.cbegin(); it != arguments.cend(); ++it) {
-        if (*it == "-designer-qt-pluginpath")
-            doWithNext(it, [](const QString &path) { setQtPluginPath(path); });
-#if QT_VERSION >= QT_VERSION_CHECK(6, 7, 0)
-        // -designer-pluginpath is only supported when building with Qt >= 6.7.0, which added the
-        // required API
-        else if (*it == "-designer-pluginpath")
-            doWithNext(it, [](const QString &path) { addPluginPath(path); });
-#endif
-    }
-}
-
-bool FormEditorPlugin::initialize([[maybe_unused]] const QStringList &arguments,
-                                  [[maybe_unused]] QString *errorString)
-{
-    d = new FormEditorPluginPrivate;
-
-#ifdef CPP_ENABLED
-    IWizardFactory::registerFactoryCreator([]() -> IWizardFactory * {
-        IWizardFactory *wizard = new FormClassWizard;
-        wizard->setCategory(Core::Constants::WIZARD_CATEGORY_QT);
-        wizard->setDisplayCategory(::Core::Tr::tr(Core::Constants::WIZARD_TR_CATEGORY_QT));
-        wizard->setDisplayName(Tr::tr("Qt Designer Form Class"));
-        wizard->setIcon({}, "ui/h");
-        wizard->setId("C.FormClass");
-        wizard->setDescription(Tr::tr("Creates a Qt Designer form along with a matching class (C++ header and source file) "
-        "for implementation purposes. You can add the form and class to an existing Qt Widget Project."));
-
-        return wizard;
-    });
-#endif
-
-    // Ensure that loading designer translations is done before FormEditorW is instantiated
-    const QString locale = ICore::userInterfaceLanguage();
-    if (!locale.isEmpty()) {
-        auto qtr = new QTranslator(this);
-        const QString creatorTrPath = ICore::resourcePath("translations").toString();
-        const QString qtTrPath = QLibraryInfo::path(QLibraryInfo::TranslationsPath);
-        const QString trFile = "designer_" + locale;
-        if (qtr->load(trFile, qtTrPath) || qtr->load(trFile, creatorTrPath))
-            QCoreApplication::installTranslator(qtr);
-    }
-
-    parseArguments(arguments);
-    return true;
-}
-
-void FormEditorPlugin::extensionsInitialized()
-{
-    DesignMode::setDesignModeIsRequired();
-    // 4) test and make sure everything works (undo, saving, editors, opening/closing multiple files, dirtiness etc)
-
-    ActionContainer *mtools = ActionManager::actionContainer(Core::Constants::M_TOOLS);
-    ActionContainer *mformtools = ActionManager::createMenu(M_FORMEDITOR);
-    mformtools->menu()->setTitle(Tr::tr("For&m Editor"));
-    mtools->addMenu(mformtools);
-
-    connect(&d->actionSwitchSource, &QAction::triggered, this, &FormEditorPlugin::switchSourceForm);
-    Context context(C_FORMEDITOR, Core::Constants::C_EDITORMANAGER);
-    Command *cmd = ActionManager::registerAction(&d->actionSwitchSource,
-                                                             "FormEditor.FormSwitchSource", context);
-    cmd->setDefaultKeySequence(Tr::tr("Shift+F4"));
-    mformtools->addAction(cmd, Core::Constants::G_DEFAULT_THREE);
-}
-
-////////////////////////////////////////////////////
-//
-// PRIVATE functions
-//
-////////////////////////////////////////////////////
+namespace Designer::Internal {
 
 // Find out current existing editor file
 static FilePath currentFile()
@@ -185,12 +89,113 @@ static FilePath otherFile()
     return {};
 }
 
-void FormEditorPlugin::switchSourceForm()
+static void parseArguments(const QStringList &arguments)
 {
-    const FilePath fileToOpen = otherFile();
-    if (!fileToOpen.isEmpty())
-        EditorManager::openEditor(fileToOpen);
+    const auto doWithNext = [arguments](auto it, const std::function<void(QString)> &fun) {
+        ++it;
+        if (it != arguments.cend())
+            fun(*it);
+    };
+    for (auto it = arguments.cbegin(); it != arguments.cend(); ++it) {
+        if (*it == "-designer-qt-pluginpath")
+            doWithNext(it, [](const QString &path) { setQtPluginPath(path); });
+#if QT_VERSION >= QT_VERSION_CHECK(6, 7, 0)
+        // -designer-pluginpath is only supported when building with Qt >= 6.7.0, which added the
+        // required API
+        else if (*it == "-designer-pluginpath")
+            doWithNext(it, [](const QString &path) { addPluginPath(path); });
+#endif
+    }
 }
 
-} // Internal
-} // Designer
+class FormEditorPluginPrivate
+{
+public:
+    QAction actionSwitchSource{Tr::tr("Switch Source/Form"), nullptr};
+
+    FormEditorFactory formEditorFactory;
+    SettingsPageProvider settingsPageProvider;
+    QtDesignerFormClassCodeGenerator formClassCodeGenerator;
+    FormPageFactory formPageFactory;
+};
+
+class FormEditorPlugin final : public ExtensionSystem::IPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "Designer.json")
+
+    ~FormEditorPlugin() final
+    {
+        deleteInstance();
+        delete d;
+    }
+
+    bool initialize(const QStringList &arguments, QString *) final
+    {
+        d = new FormEditorPluginPrivate;
+
+#ifdef CPP_ENABLED
+        IWizardFactory::registerFactoryCreator([]() -> IWizardFactory * {
+            IWizardFactory *wizard = new FormClassWizard;
+            wizard->setCategory(Core::Constants::WIZARD_CATEGORY_QT);
+            wizard->setDisplayCategory(::Core::Tr::tr(Core::Constants::WIZARD_TR_CATEGORY_QT));
+            wizard->setDisplayName(Tr::tr("Qt Designer Form Class"));
+            wizard->setIcon({}, "ui/h");
+            wizard->setId("C.FormClass");
+            wizard->setDescription(Tr::tr("Creates a Qt Designer form along with a matching class (C++ header and source file) "
+                                          "for implementation purposes. You can add the form and class to an existing Qt Widget Project."));
+
+            return wizard;
+        });
+#endif
+
+        // Ensure that loading designer translations is done before FormEditorW is instantiated
+        const QString locale = ICore::userInterfaceLanguage();
+        if (!locale.isEmpty()) {
+            auto qtr = new QTranslator(this);
+            const QString creatorTrPath = ICore::resourcePath("translations").toString();
+            const QString qtTrPath = QLibraryInfo::path(QLibraryInfo::TranslationsPath);
+            const QString trFile = "designer_" + locale;
+            if (qtr->load(trFile, qtTrPath) || qtr->load(trFile, creatorTrPath))
+                QCoreApplication::installTranslator(qtr);
+        }
+
+#ifdef WITH_TESTS
+        addTestCreator(createGoToSlotTest);
+#endif
+
+        parseArguments(arguments);
+        return true;
+    }
+
+    void extensionsInitialized() final
+    {
+        DesignMode::setDesignModeIsRequired();
+        // 4) test and make sure everything works (undo, saving, editors, opening/closing multiple files, dirtiness etc)
+
+        ActionContainer *mtools = ActionManager::actionContainer(Core::Constants::M_TOOLS);
+        ActionContainer *mformtools = ActionManager::createMenu(M_FORMEDITOR);
+        mformtools->menu()->setTitle(Tr::tr("For&m Editor"));
+        mtools->addMenu(mformtools);
+
+        connect(&d->actionSwitchSource, &QAction::triggered, this, &FormEditorPlugin::switchSourceForm);
+        Context context(C_FORMEDITOR, Core::Constants::C_EDITORMANAGER);
+        Command *cmd = ActionManager::registerAction(&d->actionSwitchSource,
+                                                     "FormEditor.FormSwitchSource", context);
+        cmd->setDefaultKeySequence(Tr::tr("Shift+F4"));
+        mformtools->addAction(cmd, Core::Constants::G_DEFAULT_THREE);
+    }
+
+    void switchSourceForm()
+    {
+        const FilePath fileToOpen = otherFile();
+        if (!fileToOpen.isEmpty())
+            EditorManager::openEditor(fileToOpen);
+    }
+
+    FormEditorPluginPrivate *d = nullptr;
+};
+
+} // Designer::Internal
+
+#include "formeditorplugin.moc"
diff --git a/src/plugins/designer/formeditorplugin.h b/src/plugins/designer/formeditorplugin.h
deleted file mode 100644
index 754aeecaee4..00000000000
--- a/src/plugins/designer/formeditorplugin.h
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#pragma once
-
-#include <extensionsystem/iplugin.h>
-
-namespace Designer {
-namespace Internal {
-
-class FormEditorPlugin : public ExtensionSystem::IPlugin
-{
-    Q_OBJECT
-    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "Designer.json")
-
-public:
-    FormEditorPlugin() = default;
-    ~FormEditorPlugin() override;
-
-#ifdef WITH_TESTS
-private slots:
-    void test_gotoslot();
-    void test_gotoslot_data();
-#endif
-
-private:
-    bool initialize(const QStringList &arguments, QString *errorString) override;
-    void extensionsInitialized() override;
-
-    void switchSourceForm();
-    void initializeTemplates();
-
-    class FormEditorPluginPrivate *d = nullptr;
-};
-
-} // namespace Internal
-} // namespace Designer
diff --git a/src/plugins/designer/gotoslot_test.cpp b/src/plugins/designer/gotoslot_test.cpp
index 49fccf58716..0ee669d36dd 100644
--- a/src/plugins/designer/gotoslot_test.cpp
+++ b/src/plugins/designer/gotoslot_test.cpp
@@ -1,8 +1,6 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-#include "formeditorplugin.h"
-
 #include "formeditor.h"
 
 #include <coreplugin/editormanager/editormanager.h>
@@ -30,7 +28,7 @@ using namespace Designer;
 using namespace Designer::Internal;
 using namespace Utils;
 
-namespace {
+namespace Designer::Internal {
 
 QTC_DECLARE_MYTESTDATADIR("../../../tests/designer/")
 
@@ -207,14 +205,18 @@ public:
     }
 };
 
-} // anonymous namespace
+class GoToSlotTest final : public QObject
+{
+    Q_OBJECT
 
-namespace Designer {
-namespace Internal {
+private slots:
+    void test_gotoslot();
+    void test_gotoslot_data();
+};
 
 /// Check: Executes "Go To Slot..." on a QPushButton in a *.ui file and checks if the respective
 /// header and source files are correctly updated.
-void FormEditorPlugin::test_gotoslot()
+void GoToSlotTest::test_gotoslot()
 {
     class SystemSettingsMgr {
     public:
@@ -235,7 +237,7 @@ void FormEditorPlugin::test_gotoslot()
     (GoToSlotTestCase(Utils::transform(files, FilePath::fromString)));
 }
 
-void FormEditorPlugin::test_gotoslot_data()
+void GoToSlotTest::test_gotoslot_data()
 {
     typedef QLatin1String _;
     QTest::addColumn<QStringList>("files");
@@ -269,5 +271,11 @@ void FormEditorPlugin::test_gotoslot_data()
                         testDataDir.file(_("form.ui"))});
 }
 
-} // namespace Internal
-} // namespace Designer
+QObject *createGoToSlotTest()
+{
+    return new GoToSlotTest;
+}
+
+} // Designer::Internal
+
+#include "gotoslot_test.moc"