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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// https://www.w3.org/TR/intersection-observer/#intersection-observer-interface
callback IntersectionObserverCallback = void (sequence<IntersectionObserverEntry> entries, IntersectionObserver observer);
[
Exposed=Window,
ActiveScriptWrappable,
Constructor(IntersectionObserverCallback callback, optional IntersectionObserverInit options),
ConstructorCallWith=ScriptState,
MeasureAs=IntersectionObserver_Constructor,
RaisesException=Constructor
] interface IntersectionObserver {
readonly attribute Element? root;
readonly attribute DOMString rootMargin;
// https://github.com/WICG/IntersectionObserver/issues/114
readonly attribute FrozenArray<double> thresholds;
[RuntimeEnabled=IntersectionObserverV2] readonly attribute DOMHighResTimeStamp delay;
[RuntimeEnabled=IntersectionObserverV2] readonly attribute boolean trackVisibility;
[RaisesException] void observe(Element target);
[RaisesException] void unobserve(Element target);
[RaisesException] void disconnect();
[RaisesException] sequence<IntersectionObserverEntry> takeRecords();
};
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