Static factory designed to expose visibilitychange events to event handlers that are not necessarily instances of Document.
See EventStreamProvider for usage information.
static const EventStreamProvider<Event> visibilityChangeEvent =
const _CustomEventStreamProvider<Event>(
_determineVisibilityChangeEventType)
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-html/HtmlDocument/visibilityChangeEvent-constant.html