Menu

Floating popup or dropdown menu widget hosting a vertical stack of menu items, command triggers, and separators.

Overview

Floating popup or dropdown menu widget hosting a vertical stack of menu items, command triggers, and separators. Provides extensive layout configuration and interaction capabilities.

Basic Usage

Menu fileMenu = new Menu("File")
    .action("New", this::onNew)
    .separator()
    .action("Exit", this::onExit);

Related links

• MenuBar: Top-level horizontal menu bar hosting dropdown menus with command binding, keyboard accelerators, and popup coordination.
• MenuItem: Selectable menu entry supporting regular actions, checkboxes, commands, keyboard shortcuts, or cascading submenus.

API

Menu(String)

Constructs a Menu with the given display label.

Parameter	Type	Description
label	String	The label text.

Menu(String, String)

Constructs a Menu with an explicit identifier and display label.

Parameter	Type	Description
id	String	The unique identifier.
label	String	The label text.

Menu::action(String, Runnable)

Appends an action item with label and callback.

Parameter	Type	Description
label	String	The label text.
action	Runnable	The action callback.

Returns Menu: This instance for chaining..

Menu::clear()

Clears all items from this menu.

Returns Menu: This instance for chaining..

Menu::command(String)

Appends an editor command item by command identifier.

Parameter	Type	Description
commandId	String	The command identifier.

Returns Menu: This instance for chaining..

Menu::command(String, String)

Appends an editor command item with custom display label.

Parameter	Type	Description
commandId	String	The command identifier.
label	String	The label text.

Returns Menu: This instance for chaining..

Menu::id()

Returns the menu identifier string.

Returns String: The unique identifier string..

Menu::id(String)

Sets the menu identifier string.

Parameter	Type	Description
id	String	The unique identifier.

Returns Menu: This instance for chaining..

Menu::item(MenuItem)

Appends a MenuItem to this menu.

Parameter	Type	Description
item	MenuItem	The target item.

Returns Menu: This instance for chaining..

Menu::items()

Returns an unmodifiable list of menu items.

Returns List: An unmodifiable list of node items..

Menu::label()

Returns the menu display label.

Returns String: The label string..

Menu::label(String)

Sets the menu display label.

Parameter	Type	Description
label	String	The label text.

Returns Menu: This instance for chaining..

Menu::separator()

Appends a visual separator divider.

Returns Menu: This instance for chaining..

Menu::submenu(Menu)

Appends a cascading nested submenu.

Parameter	Type	Description
submenu	Menu	The child submenu.

Returns Menu: This instance for chaining..