Module javafx.controls
Package javafx.scene.control

Class Menu

java.lang.Object
javafx.scene.control.MenuItem
javafx.scene.control.Menu
All Implemented Interfaces:
Styleable, EventTarget
@DefaultProperty("items")
public class Menu
extends MenuItem

A popup menu of actionable items which is displayed to the user only upon request. When a menu is visible, in most use cases, the user can select one menu item before the menu goes back to its hidden state. This means the menu is a good place to put important functionality that does not necessarily need to be visible at all times to the user.

Menus are typically placed in a MenuBar, or as a submenu of another Menu. If the intention is to offer a context menu when the user right-clicks in a certain area of their user interface, then this is the wrong control to use. This is because when Menu is added to the scenegraph, it has a visual representation that will result in it appearing on screen. Instead, ContextMenu should be used in this circumstance.

Creating a Menu and inserting it into a MenuBar is easy, as shown below: 

 Menu menu1 = new Menu("File");
 MenuBar menuBar = new MenuBar(menu1);

A Menu is a subclass of MenuItem which means that it can be inserted into a Menu's items ObservableList, resulting in a submenu being created: 

 MenuItem menu12 = new MenuItem("Open");
 menu1.getItems().add(menu12);
Image of the Menu control

The items ObservableList allows for any MenuItem type to be inserted, including its subclasses Menu, MenuItem, RadioMenuItem, CheckMenuItem, CustomMenuItem and SeparatorMenuItem. In order to insert an arbitrary Node to a Menu, a CustomMenuItem can be used. One exception to this general rule is that SeparatorMenuItem could be used for inserting a separator.

Since:
JavaFX 2.0
See Also:
MenuBar, MenuItem

  • Property Details

  • Field Details

    • ON_SHOWING

      public static final EventType<Event> ON_SHOWING

      Called when the contextMenu for this menu will be shown. However if the contextMenu is empty then this will not be called.

    • ON_SHOWN

      public static final EventType<Event> ON_SHOWN

      Called when the contextMenu for this menu shows. However if the contextMenu is empty then this will not be called.

    • ON_HIDING

      public static final EventType<Event> ON_HIDING

      Called when the contextMenu for this menu will be hidden. However if the contextMenu is empty then this will not be called.

    • ON_HIDDEN

      public static final EventType<Event> ON_HIDDEN

      Called when the contextMenu for this menu is hidden. However if the contextMenu is empty then this will not be called.

  • Constructor Details

    • Menu

      public Menu()
      Constructs a Menu with an empty string for its display text.
      Since:
      JavaFX 2.2

    • Menu

      public Menu​(String text)
      Constructs a Menu and sets the display text with the specified text.
      Parameters:
      text - the text to display on the menu button

    • Menu

      public Menu​(String text, Node graphic)
      Constructs a Menu and sets the display text with the specified text and sets the graphic Node to the given node.
      Parameters:
      text - the text to display on the menu button
      graphic - the graphic to display on the menu button

    • Menu

      public Menu​(String text, Node graphic, MenuItem... items)
      Constructs a Menu and sets the display text with the specified text, the graphic Node to the given node, and inserts the given items into the items list.
      Parameters:
      text - the text to display on the menu button
      graphic - the graphic to display on the menu button
      items - The items to display in the popup menu.
      Since:
      JavaFX 8u40

  • Method Details

    • isShowing

      public final boolean isShowing()
      Gets the value of the property showing.
      Property description:
      Indicates whether the ContextMenu is currently visible.
      Default value:
      false

    • showingProperty

      public final ReadOnlyBooleanProperty showingProperty()
      Indicates whether the ContextMenu is currently visible.
      Default value:
      false
      See Also:
      isShowing()

    • onShowingProperty

      public final ObjectProperty<EventHandler<Event>> onShowingProperty()
      Called just prior to the ContextMenu being shown, even if the menu has no items to show. Note however that this won't be called if the menu does not have a valid anchor node.
      See Also:
      getOnShowing(), setOnShowing(EventHandler)

    • setOnShowing

      public final void setOnShowing​(EventHandler<Event> value)
      Sets the value of the property onShowing.
      Property description:
      Called just prior to the ContextMenu being shown, even if the menu has no items to show. Note however that this won't be called if the menu does not have a valid anchor node.

    • getOnShowing

      public final EventHandler<Event> getOnShowing()
      Gets the value of the property onShowing.
      Property description:
      Called just prior to the ContextMenu being shown, even if the menu has no items to show. Note however that this won't be called if the menu does not have a valid anchor node.

    • onShownProperty

      public final ObjectProperty<EventHandler<Event>> onShownProperty()
      Called just after the ContextMenu is shown.
      See Also:
      getOnShown(), setOnShown(EventHandler)

    • setOnShown

      public final void setOnShown​(EventHandler<Event> value)
      Sets the value of the property onShown.
      Property description:
      Called just after the ContextMenu is shown.

    • getOnShown

      public final EventHandler<Event> getOnShown()
      Gets the value of the property onShown.
      Property description:
      Called just after the ContextMenu is shown.

    • onHidingProperty

      public final ObjectProperty<EventHandler<Event>> onHidingProperty()
      Called just prior to the ContextMenu being hidden.
      See Also:
      getOnHiding(), setOnHiding(EventHandler)

    • setOnHiding

      public final void setOnHiding​(EventHandler<Event> value)
      Sets the value of the property onHiding.
      Property description:
      Called just prior to the ContextMenu being hidden.

    • getOnHiding

      public final EventHandler<Event> getOnHiding()
      Gets the value of the property onHiding.
      Property description:
      Called just prior to the ContextMenu being hidden.

    • onHiddenProperty

      public final ObjectProperty<EventHandler<Event>> onHiddenProperty()
      Called just after the ContextMenu has been hidden.
      See Also:
      getOnHidden(), setOnHidden(EventHandler)

    • setOnHidden

      public final void setOnHidden​(EventHandler<Event> value)
      Sets the value of the property onHidden.
      Property description:
      Called just after the ContextMenu has been hidden.

    • getOnHidden

      public final EventHandler<Event> getOnHidden()
      Gets the value of the property onHidden.
      Property description:
      Called just after the ContextMenu has been hidden.

    • getItems

      public final ObservableList<MenuItem> getItems()
      The items to show within this menu. If this ObservableList is modified at runtime, the Menu will update as expected.
      Returns:
      the list of items

    • show

      public void show()
      If the Menu is not disabled and the ContextMenu is not already showing, then this will cause the ContextMenu to be shown.

    • hide

      public void hide()
      Hides the ContextMenu if it was previously showing, and any showing submenus. If this menu is not showing, then invoking this function has no effect.