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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://drafts.csswg.org/resize-observer/
*/
enum ResizeObserverBoxOptions {
"border-box",
"content-box",
"device-pixel-content-box"
};
dictionary ResizeObserverOptions {
ResizeObserverBoxOptions box = "content-box";
};
[Exposed=Window]
interface ResizeObserver {
[Throws]
constructor(ResizeObserverCallback callback);
undefined observe(Element target, optional ResizeObserverOptions options = {});
undefined unobserve(Element target);
undefined disconnect();
};
callback ResizeObserverCallback = undefined (sequence<ResizeObserverEntry> entries, ResizeObserver observer);
[Exposed=Window]
interface ResizeObserverEntry {
readonly attribute Element target;
readonly attribute DOMRectReadOnly contentRect;
// We are using [Pure, Cached, Frozen] sequence until `FrozenArray` is implemented.
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1236777 for more details.
[Frozen, Cached, Pure]
readonly attribute sequence<ResizeObserverSize> borderBoxSize;
[Frozen, Cached, Pure]
readonly attribute sequence<ResizeObserverSize> contentBoxSize;
[Frozen, Cached, Pure]
readonly attribute sequence<ResizeObserverSize> devicePixelContentBoxSize;
};
[Exposed=Window]
interface ResizeObserverSize {
readonly attribute unrestricted double inlineSize;
readonly attribute unrestricted double blockSize;
};
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