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Moonchild
57 lines
1.8 KiB
Plaintext
57 lines
1.8 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/ResizeObserver/
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*/
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enum ResizeObserverBoxOptions {
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"border-box",
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"content-box"
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};
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dictionary ResizeObserverOptions {
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ResizeObserverBoxOptions box = "content-box";
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};
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[Constructor(ResizeObserverCallback callback),
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Exposed=Window,
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Pref="layout.css.resizeobserver.enabled"]
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interface ResizeObserver {
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[Throws]
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void observe(Element? target, optional ResizeObserverOptions options);
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[Throws]
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void unobserve(Element? target);
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void disconnect();
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};
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callback ResizeObserverCallback = void (sequence<ResizeObserverEntry> entries, ResizeObserver observer);
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[Constructor(Element? target),
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Pref="layout.css.resizeobserver.enabled"]
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interface ResizeObserverEntry {
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readonly attribute Element target;
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readonly attribute DOMRectReadOnly? contentRect;
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// We are using a [Pure, Cached, Frozen] sequence since `FrozenArray` is not implemented in webidl.
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// This is functionally similar enough. As of #2340 Mozilla has not implemented this yet, either.
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[Frozen, Cached, Pure]
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readonly attribute sequence<ResizeObserverSize> borderBoxSize;
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[Frozen, Cached, Pure]
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readonly attribute sequence<ResizeObserverSize> contentBoxSize;
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};
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[Pref="layout.css.resizeobserver.enabled"]
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interface ResizeObserverSize {
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readonly attribute unrestricted double inlineSize;
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readonly attribute unrestricted double blockSize;
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};
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[ChromeOnly,
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Pref="layout.css.resizeobserver.enabled"]
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interface ResizeObservation {
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readonly attribute Element target;
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boolean isActive();
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};
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