how to close other tabs except the selected tab - javafx

Question

I want to implement TabPane with ContextMenu to close other tabs except the selected tab
public class MainApp extends Application
{
#Override
public void start(Stage primaryStage)
{
primaryStage.setTitle("Tabs");
Group root = new Group();
Scene scene = new Scene(root, 400, 250, Color.WHITE);
final TabPane tabPane = new TabPane();
BorderPane borderPane = new BorderPane();
for (int i = 0; i < 5; i++)
{
Tab tab = new Tab();
tab.setText("Tab" + i);
HBox hbox = new HBox();
hbox.getChildren().add(new Label("Tab" + i));
hbox.setAlignment(Pos.CENTER);
tab.setContent(hbox);
tabPane.getTabs().add(tab);
ContextMenu contextMenu = new ContextMenu();
MenuItem close = new MenuItem();
MenuItem closeOthers = new MenuItem();
MenuItem closeAll = new MenuItem();
close.setText("Close");
closeOthers.setText("Close Others");
closeAll.setText("Close All");
contextMenu.getItems().addAll(close, closeOthers, closeAll);
tab.setContextMenu(contextMenu);
final ObservableList<Tab> tablist = tabPane.getTabs();
close.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
tabPane.getTabs().remove(tabPane.getSelectionModel().getSelectedItem());
}
});
closeOthers.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
tabPane.getTabs().removeAll();
}
});
closeAll.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
tabPane.getTabs().removeAll(tablist);
}
});
}
// bind to take available space
borderPane.prefHeightProperty().bind(scene.heightProperty());
borderPane.prefWidthProperty().bind(scene.widthProperty());
borderPane.setCenter(tabPane);
root.getChildren().add(borderPane);
primaryStage.setScene(scene);
primaryStage.show();
}
}
But the code is not working. Can you help me to implement this solution.
Is there any better approach to implement this?

Answer 1

This is pretty simple. Just iterate through all Tab-Objects in the tablist and mark the ones which should be deleted. After the iteration remove the marked Tab-Objects.
closeOthers.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
// ArrayList of Tab-Objects in which we store Tabs which should be deleted..
ArrayList<Tab> markedTabs = new ArrayList<>();
// Iterate through all Tabs in tablist
for (Tab tab : tablist) {
// Is the tab the current active tab? if not, add it to the markedTabs-ArrayList
if (tab != tabPane.getSelectionModel().getSelectedItem())
markedTabs.add(tab);
}
// Remove them from the tabPane..
tabPane.getTabs().removeAll(markedTabs);
}
});