// https://wicg.github.io/PEPC/permission-elements.html#mixin-activation
enum InPagePermissionMixinBlockerReason {
  // No blocker reason.
  "",

  // Blocker reasons supported by all InPagePermissionMixin users.
  "illegal_subframe", "unsuccesful_registration",
  "recently_attached", "intersection_changed",
  "intersection_out_of_viewport_or_clipped",
  "intersection_occluded_or_distorted", "style_invalid",

  // Blocker reason specific to HTMLPermissionElement.
  "type_invalid",
};

// https://wicg.github.io/PEPC/permission-elements.html#permission-mixin
interface mixin InPagePermissionMixin {
  readonly attribute boolean isValid;
  readonly attribute InPagePermissionMixinBlockerReason invalidReason;
  readonly attribute PermissionState initialPermissionStatus;
  readonly attribute PermissionState permissionStatus;

  attribute EventHandler onpromptaction;
  attribute EventHandler onpromptdismiss;
  attribute EventHandler onvalidationstatuschange;
};

// https://wicg.github.io/PEPC/permission-elements.html#geolocation-element
[Exposed=Window]
interface HTMLGeolocationElement : HTMLElement {
  [HTMLConstructor] constructor();

  readonly attribute GeolocationPosition? position;
  readonly attribute GeolocationPositionError? error;
  [CEReactions, Reflect] attribute boolean autolocate;
  [CEReactions, Reflect] attribute boolean watch;

  attribute EventHandler onlocation;
};
HTMLGeolocationElement includes InPagePermissionMixin;