62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.isSamePoint = isSamePoint;
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exports.monitorResize = monitorResize;
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exports.restoreFocus = restoreFocus;
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var _contains = _interopRequireDefault(require("../vc-util/Dom/contains"));
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var _resizeObserverPolyfill = _interopRequireDefault(require("resize-observer-polyfill"));
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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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function restoreFocus(activeElement, container) {
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// Focus back if is in the container
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if (activeElement !== document.activeElement && (0, _contains.default)(container, activeElement) && typeof activeElement.focus === 'function') {
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activeElement.focus();
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}
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}
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function monitorResize(element, callback) {
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let prevWidth = null;
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let prevHeight = null;
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function onResize(_ref) {
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let [{
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target
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}] = _ref;
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if (!document.documentElement.contains(target)) return;
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const {
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width,
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height
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} = target.getBoundingClientRect();
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const fixedWidth = Math.floor(width);
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const 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(() => {
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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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const resizeObserver = new _resizeObserverPolyfill.default(onResize);
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if (element) {
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resizeObserver.observe(element);
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}
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return () => {
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resizeObserver.disconnect();
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};
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} |