Copilot: Use new construction pattern for project panel factory

Change-Id: Id703f377f353390e63535a0c98078c66909cbdd4
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/copilot/copilotplugin.cpp

@@ -17,8 +17,6 @@
 
 #include <languageclient/languageclientmanager.h>
 
-#include <projectexplorer/projectpanelfactory.h>
-
 #include <texteditor/textdocumentlayout.h>
 #include <texteditor/texteditor.h>
 
@@ -129,11 +127,7 @@ void CopilotPlugin::initialize()
     toggleButton->setDefaultAction(toggleAction.contextAction());
     StatusBarManager::addStatusBarWidget(toggleButton, StatusBarManager::RightCorner);
 
-    auto panelFactory = new ProjectPanelFactory;
-    panelFactory->setPriority(1000);
-    panelFactory->setDisplayName(Tr::tr("Copilot"));
-    panelFactory->setCreateWidgetFunction(&Internal::createCopilotProjectPanel);
-    ProjectPanelFactory::registerFactory(panelFactory);
+    setupCopilotProjectPanel();
 }
 
 bool CopilotPlugin::delayedInitialize()

src/plugins/copilot/copilotprojectpanel.cpp

@@ -2,21 +2,22 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
 #include "copilotprojectpanel.h"
+
 #include "copilotconstants.h"
 #include "copilotsettings.h"
+#include "copilottr.h"
 
 #include <projectexplorer/project.h>
+#include <projectexplorer/projectpanelfactory.h>
 #include <projectexplorer/projectsettingswidget.h>
 
 #include <utils/layoutbuilder.h>
 
-#include <QWidget>
-
 using namespace ProjectExplorer;
 
 namespace Copilot::Internal {
 
-class CopilotProjectSettingsWidget : public ProjectExplorer::ProjectSettingsWidget
+class CopilotProjectSettingsWidget final : public ProjectSettingsWidget
 {
 public:
     CopilotProjectSettingsWidget()
@@ -26,10 +27,9 @@ public:
     }
 };
 
-ProjectSettingsWidget *createCopilotProjectPanel(Project *project)
+static ProjectSettingsWidget *createCopilotProjectPanel(Project *project)
 {
     using namespace Layouting;
-    using namespace ProjectExplorer;
 
     auto widget = new CopilotProjectSettingsWidget;
     auto settings = new CopilotProjectSettings(project);
@@ -57,4 +57,21 @@ ProjectSettingsWidget *createCopilotProjectPanel(Project *project)
     return widget;
 }
 
+class CopilotProjectPanelFactory final : public ProjectPanelFactory
+{
+public:
+    CopilotProjectPanelFactory()
+    {
+        setPriority(1000);
+        setDisplayName(Tr::tr("Copilot"));
+        setCreateWidgetFunction(&createCopilotProjectPanel);
+        ProjectPanelFactory::registerFactory(this);
+    }
+};
+
+void setupCopilotProjectPanel()
+{
+    static CopilotProjectPanelFactory theCopilotProjectPanelFactory;
+}
+
 } // namespace Copilot::Internal

src/plugins/copilot/copilotprojectpanel.h

@@ -3,13 +3,8 @@
 
 #pragma once
 
-namespace ProjectExplorer {
-class ProjectSettingsWidget;
-class Project;
-} // namespace ProjectExplorer
-
 namespace Copilot::Internal {
 
-ProjectExplorer::ProjectSettingsWidget *createCopilotProjectPanel(ProjectExplorer::Project *project);
+void setupCopilotProjectPanel();
 
-} // namespace Copilot::Internal
+} // Copilot::Internal