Merge branch 'feature/client_navigation' into 'main'

Feature/client navigation

See merge request cse1105/2025-2026/teams/csep-team-76!15

client/src/main/java/client/utils/Navigation.java

@@ -0,0 +1,41 @@
+package client.utils;
+
+import client.MyFXML;
+import javafx.scene.Parent;
+import javafx.scene.layout.Pane;
+
+public class Navigation {
+
+    private final MyFXML myFXML;
+    private Pane screen;
+
+    /**
+     * Constructs a Navigation Object that uses a fxml object and Pane that will allow to switch UI screens
+     * @param x - a MyFXML Object
+     * @param y - a Pane Object
+     */
+    public Navigation(MyFXML x, Pane y){
+        this.myFXML = x;
+        this.screen = y;
+    }
+
+    /**
+     * The show function takes in an FxmlPath and changes the current pane to the value given by the path
+     * using the load function of the myFXML object
+     * @param fxmlpath -  FXML path provided to show the next pane
+     */
+    public void show(String fxmlpath){
+
+        try{
+            var result = myFXML.load(Object.class, fxmlpath); //stores the result of the load method in result
+            Parent uiRoot = result.getValue();
+            screen.getChildren().setAll(uiRoot);
+        }
+        catch(Exception e) {        //catches any failures thrown by the load method
+            System.err.println("Failed to load FXML file: " + fxmlpath);
+            throw new IllegalArgumentException("Cannot load FXML file: " + fxmlpath, e);
+        }
+    }
+
+
+}