class FocusChainListener

Defined at line 609 of file fidling/gen/sdk/fidl/fuchsia.ui.focus/fuchsia.ui.focus/hlcpp/fuchsia/ui/focus/cpp/fidl.h

A FocusChainListener receives an updated FocusChain when focus changes.

Public Methods

void ~FocusChainListener ()

void OnFocusChange (::fuchsia::ui::focus::FocusChain focus_chain, OnFocusChangeCallback callback)

Sent when a focus change occurs. Since `focus_chain` may contain an

empty update, every handler MUST respond to the message even

if its contents are not immediately useful.