64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
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import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
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import ResizeObserver from 'resize-observer-polyfill';
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import contains from "rc-util/es/Dom/contains";
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export function isSamePoint(prev, next) {
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if (prev === next) return true;
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if (!prev || !next) return false;
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if ('pageX' in next && 'pageY' in next) {
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return prev.pageX === next.pageX && prev.pageY === next.pageY;
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}
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if ('clientX' in next && 'clientY' in next) {
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return prev.clientX === next.clientX && prev.clientY === next.clientY;
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}
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return false;
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}
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export function restoreFocus(activeElement, container) {
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// Focus back if is in the container
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if (activeElement !== document.activeElement && contains(container, activeElement) && typeof activeElement.focus === 'function') {
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activeElement.focus();
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}
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}
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export function monitorResize(element, callback) {
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var prevWidth = null;
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var prevHeight = null;
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function onResize(_ref) {
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var _ref2 = _slicedToArray(_ref, 1),
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target = _ref2[0].target;
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if (!document.documentElement.contains(target)) return;
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var _target$getBoundingCl = target.getBoundingClientRect(),
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width = _target$getBoundingCl.width,
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height = _target$getBoundingCl.height;
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var fixedWidth = Math.floor(width);
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var fixedHeight = Math.floor(height);
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if (prevWidth !== fixedWidth || prevHeight !== fixedHeight) {
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// https://webkit.org/blog/9997/resizeobserver-in-webkit/
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Promise.resolve().then(function () {
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callback({
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width: fixedWidth,
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height: fixedHeight
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});
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});
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}
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prevWidth = fixedWidth;
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prevHeight = fixedHeight;
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}
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var resizeObserver = new ResizeObserver(onResize);
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if (element) {
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resizeObserver.observe(element);
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}
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return function () {
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resizeObserver.disconnect();
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};
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}
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