// GENERATED CONTENT - DO NOT EDIT
// Content was automatically extracted by Reffy into webref
// (https://github.com/w3c/webref)
// Source: Page Visibility Level 2 (https://w3c.github.io/page-visibility/)

enum VisibilityState {
  "hidden", "visible"
};

partial interface Document {
  readonly attribute boolean hidden;
  readonly attribute VisibilityState visibilityState;
  attribute EventHandler onvisibilitychange;
};