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