2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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import {createReadOnlyRect} from './utils/geometry.js';
import defineConfigurable from './utils/defineConfigurable.js';
export default class ResizeObserverEntry {
/**
* Element size of which has changed.
* Spec: https://wicg.github.io/ResizeObserver/#dom-resizeobserverentry-target
*
* @readonly
* @type {Element}
*/
target;
/**
* Element's content rectangle.
* Spec: https://wicg.github.io/ResizeObserver/#dom-resizeobserverentry-contentrect
*
* @readonly
* @type {DOMRectReadOnly}
*/
contentRect;
/**
* Creates an instance of ResizeObserverEntry.
*
* @param {Element} target - Element that is being observed.
* @param {DOMRectInit} rectInit - Data of the element's content rectangle.
*/
constructor(target, rectInit) {
const contentRect = createReadOnlyRect(rectInit);
// According to the specification following properties are not writable
// and are also not enumerable in the native implementation.
//
// Property accessors are not being used as they'd require to define a
// private WeakMap storage which may cause memory leaks in browsers that
// don't support this type of collections.
defineConfigurable(this, {target, contentRect});
}
}
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