320a454c49
* create rrdom package * test(rrdom): add unit tests for polyfill.ts * fix(rrweb snapshot): type check errors Errors are caused by the declaration similarity of @types/mocha and @types/jest if we install both of them in the whole project. * Set tagNames to upper case by default This mirrors the `Element.tagName` implementation: ``` For DOM trees which represent HTML documents, the returned tag name is always in the canonical upper-case form. For example, tagName called on a <div> element returns "DIV". ``` https://developer.mozilla.org/en-US/docs/Web/API/Element/tagName * Add workspace file * VSCode settings for rrdom tests * Add basic test for RRDocument * Only setup jest tests for rrdom * mock Node type and Event type for nodejs environment * test(rrdom): add snapshot for document.test.ts * fix issue of nwsapi import and add unit tests for rrdom * fix: querySelectorAll returns nothing when querying elements with ids and classNames * fix: error of unit test for Event polyfill Since Event class is built in nodejs after v15.0.0 * add a dummy implementation of canvas * add style element support * add unit test for style element Co-authored-by: Justin Halsall <Juice10@users.noreply.github.com>
88 lines
2.5 KiB
TypeScript
88 lines
2.5 KiB
TypeScript
import { RRDocument, RRNode } from './document-nodejs';
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/**
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* Polyfill the performance for nodejs.
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*/
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export function polyfillPerformance() {
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if (typeof window !== 'undefined' || 'performance' in global) return;
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((global as Window & typeof globalThis)
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.performance as unknown) = require('perf_hooks').performance;
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}
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/**
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* Polyfill requestAnimationFrame and cancelAnimationFrame for nodejs.
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*/
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export function polyfillRAF() {
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if (typeof window !== 'undefined' || 'requestAnimationFrame' in global)
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return;
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const FPS = 60,
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INTERVAL = 1_000 / FPS;
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let timeoutHandle: NodeJS.Timeout | null = null,
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rafCount = 0,
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requests = Object.create(null);
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function onFrameTimer() {
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const currentRequests = requests;
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requests = Object.create(null);
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timeoutHandle = null;
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Object.keys(currentRequests).forEach(function (id) {
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const request = currentRequests[id];
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if (request) request(Date.now());
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});
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}
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function requestAnimationFrame(callback: (timestamp: number) => void) {
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const cbHandle = ++rafCount;
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requests[cbHandle] = callback;
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if (timeoutHandle === null)
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timeoutHandle = setTimeout(onFrameTimer, INTERVAL);
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return cbHandle;
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}
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function cancelAnimationFrame(handleId: number) {
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delete requests[handleId];
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if (Object.keys(requests).length === 0 && timeoutHandle !== null) {
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clearTimeout(timeoutHandle);
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timeoutHandle = null;
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}
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}
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(global as Window &
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typeof globalThis).requestAnimationFrame = requestAnimationFrame;
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(global as Window &
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typeof globalThis).cancelAnimationFrame = cancelAnimationFrame;
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}
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/**
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* Try to polyfill Event type.
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* The implementation of Event so far is empty because rrweb doesn't strongly depend on it in nodejs mode.
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* Note: The Event class is available through the global object from nodejs v15.0.0.
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*/
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export function polyfillEvent() {
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if (typeof Event !== 'undefined') return;
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(global.Event as unknown) = function () {};
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}
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/**
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* Polyfill Node type with RRNode for nodejs.
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*/
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export function polyfillNode() {
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if (typeof Node !== 'undefined') return;
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(global.Node as unknown) = RRNode;
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}
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/**
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* Polyfill document object with RRDocument for nodejs.
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*/
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export function polyfillDocument() {
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if (typeof document !== 'undefined') return;
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const rrdom = new RRDocument();
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(() => {
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rrdom.appendChild(rrdom.createElement('html'));
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rrdom.documentElement.appendChild(rrdom.createElement('head'));
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rrdom.documentElement.appendChild(rrdom.createElement('body'));
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})();
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global.document = (rrdom as unknown) as Document;
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}
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