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- "use strict";
- var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.detectFlexGapSupported = exports.default = exports.canUseDocElement = void 0;
- exports.isStyleSupport = isStyleSupport;
- var _canUseDom = _interopRequireDefault(require("./canUseDom"));
- const canUseDocElement = () => (0, _canUseDom.default)() && window.document.documentElement;
- exports.canUseDocElement = canUseDocElement;
- const isStyleNameSupport = styleName => {
- if ((0, _canUseDom.default)() && window.document.documentElement) {
- const styleNameList = Array.isArray(styleName) ? styleName : [styleName];
- const {
- documentElement
- } = window.document;
- return styleNameList.some(name => name in documentElement.style);
- }
- return false;
- };
- const isStyleValueSupport = (styleName, value) => {
- if (!isStyleNameSupport(styleName)) {
- return false;
- }
- const ele = document.createElement('div');
- const origin = ele.style[styleName];
- ele.style[styleName] = value;
- return ele.style[styleName] !== origin;
- };
- function isStyleSupport(styleName, styleValue) {
- if (!Array.isArray(styleName) && styleValue !== undefined) {
- return isStyleValueSupport(styleName, styleValue);
- }
- return isStyleNameSupport(styleName);
- }
- let flexGapSupported;
- const detectFlexGapSupported = () => {
- if (!canUseDocElement()) {
- return false;
- }
- if (flexGapSupported !== undefined) {
- return flexGapSupported;
- }
- // create flex container with row-gap set
- const flex = document.createElement('div');
- flex.style.display = 'flex';
- flex.style.flexDirection = 'column';
- flex.style.rowGap = '1px';
- // create two, elements inside it
- flex.appendChild(document.createElement('div'));
- flex.appendChild(document.createElement('div'));
- // append to the DOM (needed to obtain scrollHeight)
- document.body.appendChild(flex);
- flexGapSupported = flex.scrollHeight === 1; // flex container should be 1px high from the row-gap
- document.body.removeChild(flex);
- return flexGapSupported;
- };
- exports.detectFlexGapSupported = detectFlexGapSupported;
- var _default = exports.default = isStyleSupport;
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