Class MenuBuilder

A utility class to build a Menu programmatically.

Inheritance
object
Popup
Popup<MenuBuilder>
AnchorPopup<MenuBuilder>
MenuBuilder
Inherited Members
Namespace: Unity.AppUI.UI
Assembly: Unity.AppUI.dll
Syntax
public class MenuBuilder : AnchorPopup<MenuBuilder>

Constructors

MenuBuilder(VisualElement, VisualElement, VisualElement)

Constructor.

Declaration
public MenuBuilder(VisualElement referenceView, VisualElement view, VisualElement contentView)
Parameters
Type Name Description
VisualElement referenceView

The element used as context provider for the Menu.
VisualElement view

The Menu visual element (used by the popup system).
VisualElement contentView

The Menu's content visual element.

Properties

closeOnSelection

Close the menu automatically when an item is selected.

Declaration
public bool closeOnSelection { get; }
Property Value
Type Description
bool

currentMenu

The last menu in the stack.

Declaration
public Menu currentMenu { get; }
Property Value
Type Description
Menu

Methods

AddAction(int, Action<MenuItem>)

Add an Action menu item to the current menu.

Declaration
public MenuBuilder AddAction(int actionId, Action<MenuItem> bindItemFunc)
Parameters
Type Name Description
int actionId

A unique identifier for the action.
Action<MenuItem> bindItemFunc

A callback to bind the action.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

AddAction(int, string, string, string, EventCallback<ClickEvent>)

Add an Action menu item to the current menu.

Declaration
public MenuBuilder AddAction(int actionId, string labelStr, string iconName, string shortcut, EventCallback<ClickEvent> callback)
Parameters
Type Name Description
int actionId

A unique identifier for the action.
string labelStr

The raw label of the menu item (will be localized).
string iconName

The icon of the menu item.
string shortcut

The shortcut of the menu item.
EventCallback<ClickEvent> callback

The callback to invoke when the menu item is clicked.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

AddAction(int, string, string, EventCallback<ClickEvent>)

Add an Action menu item to the current menu.

Declaration
public MenuBuilder AddAction(int actionId, string labelStr, string iconName, EventCallback<ClickEvent> callback)
Parameters
Type Name Description
int actionId

A unique identifier for the action.
string labelStr

The raw label of the menu item (will be localized).
string iconName

The icon of the menu item.
EventCallback<ClickEvent> callback

The callback to invoke when the menu item is clicked.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

AddDivider(Action<MenuDivider>)

Add a Menu Divider to the current menu.

Declaration
public MenuBuilder AddDivider(Action<MenuDivider> bindDividerFunc = null)
Parameters
Type Name Description
Action<MenuDivider> bindDividerFunc

A callback to bind the divider.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

AddSection(Action<MenuSection>)

Add a Section to the current menu.

Declaration
public MenuBuilder AddSection(Action<MenuSection> bindSectionFunc = null)
Parameters
Type Name Description
Action<MenuSection> bindSectionFunc

A callback to bind the section.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

Build(VisualElement, Menu)

Create a MenuBuilder instance.

Declaration
public static MenuBuilder Build(VisualElement referenceView, Menu menu = null)
Parameters
Type Name Description
VisualElement referenceView

The reference view to position the menu.
Menu menu

The menu to display.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.
Exceptions
Type Condition
ArgumentNullException

If referenceView is null.

GetFocusableElement()

Returns the element that will be focused when the view will become visible.

The default value is `null`.

Declaration
protected override VisualElement GetFocusableElement()
Returns
Type Description
VisualElement

The element that will be focused when the view will become visible.
Overrides

GetMovableElement()

Method which must return the visual element that needs to be moved, based on the anchor position and size.

Declaration
public override VisualElement GetMovableElement()
Returns
Type Description
VisualElement

The visual element which will be moved. The default value is view.
Overrides

HideView(DismissType)

Called when the popup's Handler has received a Popup.k_PopupDismiss message.

Declaration
protected override void HideView(DismissType reason)
Parameters
Type Name Description
DismissType reason

The reason why the popup should be dismissed.
Overrides

InvokeShownEventHandlers()

Called when the popup has become visible. This method will invoke any handlers attached to the shown event.

Declaration
protected override void InvokeShownEventHandlers()
Overrides

Pop()

Go back to the parent menu and make it the current menu.

Declaration
public MenuBuilder Pop()
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

PushSubMenu(Action<MenuItem>)

Create an action menu item, add a sub-menu to the current menu, and make it the current menu.

Declaration
public MenuBuilder PushSubMenu(Action<MenuItem> bindItemFunc)
Parameters
Type Name Description
Action<MenuItem> bindItemFunc

A callback to bind the action.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.
Remarks

When the binding callback is invoked, the sub-menu is already pushed on the stack and set on the menu item.

PushSubMenu(int, string, string)

Create an action menu item, add a sub-menu to the current menu, and make it the current menu.

Declaration
public MenuBuilder PushSubMenu(int actionId, string labelStr, string iconName)
Parameters
Type Name Description
int actionId

A unique identifier for the action.
string labelStr

The label of the menu item.
string iconName

The icon of the menu item.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

PushSubMenu(int, string, string, Action)

Create an action menu item, add a sub-menu to the current menu, and make it the current menu.

Declaration
public MenuBuilder PushSubMenu(int actionId, string labelStr, string iconName, Action subMenuOpenedCallback)
Parameters
Type Name Description
int actionId

A unique identifier for the action.
string labelStr

The label of the menu item.
string iconName

The icon of the menu item.
Action subMenuOpenedCallback

The callback to invoke when the sub-menu is opened.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

SetCloseOnSelection(bool)

Close the menu automatically when an item is selected.

Declaration
public MenuBuilder SetCloseOnSelection(bool value)
Parameters
Type Name Description
bool value

True to close the menu automatically when an item is selected.
Returns
Type Description
MenuBuilder

The MenuBuilder instance.

ShouldAnimate()

Implement this method to know if the popup should call AnimateViewIn() and AnimateViewOut(DismissType) methods or not.

Declaration
protected override bool ShouldAnimate()
Returns
Type Description
bool

True if you want to animate the popup, False otherwise.
Overrides