92 lines
2.3 KiB
TypeScript
92 lines
2.3 KiB
TypeScript
import canUseDom from '../../canUseDom';
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import { ATTR_MARK } from '../StyleContext';
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export const ATTR_CACHE_MAP = 'data-ant-cssinjs-cache-path';
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/**
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* This marks style from the css file.
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* Which means not exist in `<style />` tag.
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*/
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export const CSS_FILE_STYLE = '_FILE_STYLE__';
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export function serialize(cachePathMap: Record<string, string>) {
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return Object.keys(cachePathMap)
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.map(path => {
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const hash = cachePathMap[path];
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return `${path}:${hash}`;
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})
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.join(';');
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}
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let cachePathMap: Record<string, string>;
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let fromCSSFile = true;
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/**
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* @private Test usage only. Can save remove if no need.
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*/
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export function reset(mockCache?: Record<string, string>, fromFile = true) {
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cachePathMap = mockCache!;
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fromCSSFile = fromFile;
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}
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export function prepare() {
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if (!cachePathMap) {
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cachePathMap = {};
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if (canUseDom()) {
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const div = document.createElement('div');
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div.className = ATTR_CACHE_MAP;
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div.style.position = 'fixed';
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div.style.visibility = 'hidden';
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div.style.top = '-9999px';
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document.body.appendChild(div);
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let content = getComputedStyle(div).content || '';
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content = content.replace(/^"/, '').replace(/"$/, '');
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// Fill data
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content.split(';').forEach(item => {
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const [path, hash] = item.split(':');
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cachePathMap[path] = hash;
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});
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// Remove inline record style
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const inlineMapStyle = document.querySelector(`style[${ATTR_CACHE_MAP}]`);
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if (inlineMapStyle) {
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fromCSSFile = false;
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inlineMapStyle.parentNode?.removeChild(inlineMapStyle);
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}
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document.body.removeChild(div);
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}
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}
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}
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export function existPath(path: string) {
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prepare();
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return !!cachePathMap[path];
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}
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export function getStyleAndHash(path: string): [style: string | null, hash: string] {
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const hash = cachePathMap[path];
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let styleStr: string | null = null;
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if (hash && canUseDom()) {
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if (fromCSSFile) {
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styleStr = CSS_FILE_STYLE;
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} else {
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const style = document.querySelector(`style[${ATTR_MARK}="${cachePathMap[path]}"]`);
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if (style) {
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styleStr = style.innerHTML;
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} else {
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// Clean up since not exist anymore
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delete cachePathMap[path];
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}
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}
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}
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return [styleStr, hash];
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}
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