Implement script engine reload

include/mainwindow.h

@@ -288,6 +288,7 @@ private slots:
     void togglePreferenceSpecificUi();
     void on_actionEdit_Project_Settings_triggered();
     void on_actionCustom_Scripts_triggered();
+    void reloadScriptEngine();
 
 public:
     Ui::MainWindow *ui;

src/mainwindow.cpp

@@ -2736,11 +2736,23 @@ void MainWindow::on_actionEdit_Project_Settings_triggered() {
 void MainWindow::on_actionCustom_Scripts_triggered() {
     if (!this->customScriptsEditor) {
         this->customScriptsEditor = new CustomScriptsEditor(this);
+        connect(this->customScriptsEditor, &CustomScriptsEditor::reloadScriptEngine,
+                this, &MainWindow::reloadScriptEngine);
     }
 
     openSubWindow(this->customScriptsEditor);
 }
 
+void MainWindow::reloadScriptEngine() {
+    Scripting::init(this);
+    this->ui->graphicsView_Map->clearOverlayMap();
+    Scripting::populateGlobalObject(this);
+    // Lying to the scripts here, simulating a project reload
+    Scripting::cb_ProjectOpened(projectConfig.getProjectDir());
+    if (editor && editor->map)
+        Scripting::cb_MapOpened(editor->map->name);
+}
+
 void MainWindow::on_pushButton_AddCustomHeaderField_clicked()
 {
     bool ok;

src/ui/customscriptseditor.cpp

@@ -198,7 +198,7 @@ void CustomScriptsEditor::reloadScripts() {
             return;
         this->save();
     }
-    emit reloadScriptEngine(); // TODO: Catch this signal
+    emit reloadScriptEngine();
 }
 
 void CustomScriptsEditor::save() {