CMakePM: Allow CMake peset kits refresh without configuring first

This allows the user to reload the presets kits after editing
CMakePresets.json without configuring the project first.

Fixes: QTCREATORBUG-30238
Change-Id: Id448dd8e821591f6357ec9618f114733c13a3121
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp

@@ -8,6 +8,7 @@
 #include "cmakeprocess.h"
 #include "cmakeproject.h"
 #include "cmakeprojectconstants.h"
+#include "cmakeprojectimporter.h"
 #include "cmakeprojectmanagertr.h"
 #include "cmakeprojectnodes.h"
 #include "cmakespecificsettings.h"
@@ -362,6 +363,8 @@ void CMakeManager::reloadCMakePresets()
 
     project->setOldPresetKits(oldKits);
 
+    emit project->projectImporter()->cmakePresetsUpdated();
+
     Core::ModeManager::activateMode(ProjectExplorer::Constants::MODE_SESSION);
     Core::ModeManager::setFocusToCurrentMode();
 }

src/plugins/projectexplorer/projectimporter.h

@@ -47,6 +47,9 @@ public:
     void addProject(Kit *k) const;
     void removeProject(Kit *k) const;
 
+signals:
+    void cmakePresetsUpdated();
+
 protected:
     class UpdateGuard
     {

src/plugins/projectexplorer/targetsettingspanel.cpp

@@ -12,6 +12,7 @@
 #include "project.h"
 #include "projectexplorericons.h"
 #include "projectexplorertr.h"
+#include "projectimporter.h"
 #include "projectmanager.h"
 #include "projectwindow.h"
 #include "runsettingspropertiespage.h"

src/plugins/projectexplorer/targetsetuppage.cpp

@@ -368,9 +368,22 @@ void TargetSetupPage::setProjectImporter(ProjectImporter *importer)
     if (d->m_widgetsWereSetUp)
         d->reset(); // Reset before changing the importer!
 
+    if (d->m_importer) {
+        disconnect(d->m_importer, &ProjectImporter::cmakePresetsUpdated,
+                   this, &TargetSetupPage::initializePage);
+    }
+
+
     d->m_importer = importer;
     d->m_importWidget->setVisible(d->m_importer);
 
+    if (d->m_importer) {
+        // FIXME: Needed for the refresh of CMake preset kits created by
+        // CMakeProjectImporter
+        connect(d->m_importer, &ProjectImporter::cmakePresetsUpdated,
+                this, &TargetSetupPage::initializePage);
+    }
+
     if (d->m_widgetsWereSetUp)
         initializePage();
 }