Class AttemptFocus

Focus ownership is deliberately limited to DOM focus, not a screen reader's separate reading cursor. Never resume an automatic handoff after window blur.

Constructors

constructor

Properties

deactivation enabled host initiator? windowActive

Methods

begin cancel deactivate observeDeparture reactivate replacementGuard

Constructors

constructor

Properties

Private deactivation

deactivation: number = 0

Private enabled

enabled: boolean = false

Private Readonly host

host: HTMLElement

Private Optional initiator

initiator?: Element

Private windowActive

windowActive: boolean = true

Methods

begin

cancel

deactivate

observeDeparture

reactivate

replacementGuard

  • replacementGuard(interrupt, content): (() => boolean)

  • Capture before renderers remove old links or controls. The returned guard is checked after rendering so a later user focus move always wins.

    Parameters

    • interrupt: Element
    • content: Element[]

    Returns (() => boolean)

      • (): boolean

      • Returns boolean

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