import {createReadOnlyRect} from './utils/geometry.js';
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import defineConfigurable from './utils/defineConfigurable.js';
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export default class ResizeObserverEntry {
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/**
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* Element size of which has changed.
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* Spec: https://wicg.github.io/ResizeObserver/#dom-resizeobserverentry-target
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*
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* @readonly
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* @type {Element}
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*/
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target;
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/**
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* Element's content rectangle.
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* Spec: https://wicg.github.io/ResizeObserver/#dom-resizeobserverentry-contentrect
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*
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* @readonly
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* @type {DOMRectReadOnly}
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*/
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contentRect;
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/**
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* Creates an instance of ResizeObserverEntry.
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*
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* @param {Element} target - Element that is being observed.
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* @param {DOMRectInit} rectInit - Data of the element's content rectangle.
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*/
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constructor(target, rectInit) {
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const contentRect = createReadOnlyRect(rectInit);
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// According to the specification following properties are not writable
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// and are also not enumerable in the native implementation.
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//
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// Property accessors are not being used as they'd require to define a
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// private WeakMap storage which may cause memory leaks in browsers that
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// don't support this type of collections.
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defineConfigurable(this, {target, contentRect});
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}
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}
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