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32 lines
1.2 KiB
Text
32 lines
1.2 KiB
Text
/* 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
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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// https://w3c.github.io/IntersectionObserver/#intersection-observer-interface
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callback IntersectionObserverCallback =
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undefined (sequence<IntersectionObserverEntry> entries, IntersectionObserver observer);
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dictionary IntersectionObserverInit {
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(Element or Document)? root = null;
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DOMString rootMargin;
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DOMString scrollMargin;
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(double or sequence<double>) threshold;
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long delay;
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boolean trackVisibility = false;
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};
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[Pref="dom_intersection_observer_enabled", Exposed=(Window)]
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interface IntersectionObserver {
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constructor(IntersectionObserverCallback callback, optional IntersectionObserverInit options = {});
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readonly attribute (Element or Document)? root;
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readonly attribute DOMString rootMargin;
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readonly attribute DOMString scrollMargin;
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readonly attribute /* FrozenArray<double> */ any thresholds;
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readonly attribute long delay;
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readonly attribute boolean trackVisibility;
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undefined observe(Element target);
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undefined unobserve(Element target);
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undefined disconnect();
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sequence<IntersectionObserverEntry> takeRecords();
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};
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