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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* The origin of this IDL file is
* https://wicg.github.io/IntersectionObserver/
*/
[ProbablyShortLivingObject, Pref="dom.intersectionObserver.enabled"]
interface IntersectionObserverEntry {
[Constant]
readonly attribute DOMHighResTimeStamp time;
[Constant]
readonly attribute DOMRectReadOnly? rootBounds;
[Constant]
readonly attribute DOMRectReadOnly boundingClientRect;
[Constant]
readonly attribute DOMRectReadOnly intersectionRect;
[Constant]
readonly attribute boolean isIntersecting;
[Constant]
readonly attribute double intersectionRatio;
[Constant]
readonly attribute Element target;
};
[Constructor(IntersectionCallback intersectionCallback,
optional IntersectionObserverInit options),
Pref="dom.intersectionObserver.enabled"]
interface IntersectionObserver {
[Constant]
readonly attribute Element? root;
[Constant]
readonly attribute DOMString rootMargin;
[Constant,Cached]
readonly attribute sequence<double> thresholds;
void observe(Element target);
void unobserve(Element target);
void disconnect();
sequence<IntersectionObserverEntry> takeRecords();
[ChromeOnly]
readonly attribute IntersectionCallback intersectionCallback;
};
callback IntersectionCallback =
void (sequence<IntersectionObserverEntry> entries, IntersectionObserver observer);
dictionary IntersectionObserverEntryInit {
required DOMHighResTimeStamp time;
required DOMRectInit rootBounds;
required DOMRectInit boundingClientRect;
required DOMRectInit intersectionRect;
required Element target;
};
dictionary IntersectionObserverInit {
Element? root = null;
DOMString rootMargin = "0px";
(double or sequence<double>) threshold = 0;
};
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