1 files changed, 338 insertions, 0 deletions
diff --git a/packages/webapi/src/polyfill.ts b/packages/webapi/src/polyfill.ts
new file mode 100644
index 000000000..81df33185
--- /dev/null
+++ b/packages/webapi/src/polyfill.ts
@@ -0,0 +1,338 @@
+import {
+	AbortController,
+	AbortSignal,
+	Blob,
+	ByteLengthQueuingStrategy,
+	CanvasRenderingContext2D,
+	CharacterData,
+	Comment,
+	CountQueuingStrategy,
+	CSSStyleSheet,
+	CustomElementRegistry,
+	CustomEvent,
+	DOMException,
+	Document,
+	DocumentFragment,
+	Element,
+	Event,
+	EventTarget,
+	File,
+	FormData,
+	HTMLDocument,
+	HTMLElement,
+	HTMLBodyElement,
+	HTMLCanvasElement,
+	HTMLDivElement,
+	HTMLHeadElement,
+	HTMLHtmlElement,
+	HTMLImageElement,
+	HTMLSpanElement,
+	HTMLStyleElement,
+	HTMLTemplateElement,
+	HTMLUnknownElement,
+	Headers,
+	IntersectionObserver,
+	Image,
+	ImageData,
+	MediaQueryList,
+	MutationObserver,
+	Node,
+	NodeFilter,
+	NodeIterator,
+	OffscreenCanvas,
+	ReadableByteStreamController,
+	ReadableStream,
+	ReadableStreamBYOBReader,
+	ReadableStreamBYOBRequest,
+	ReadableStreamDefaultController,
+	ReadableStreamDefaultReader,
+	Request,
+	ResizeObserver,
+	Response,
+	ShadowRoot,
+	Storage,
+	StyleSheet,
+	Text,
+	TransformStream,
+	TreeWalker,
+	URLPattern,
+	WritableStream,
+	WritableStreamDefaultController,
+	WritableStreamDefaultWriter,
+	Window,
+
+	alert,
+	atob,
+	btoa,
+	cancelAnimationFrame,
+	cancelIdleCallback,
+	clearTimeout,
+	fetch,
+	requestAnimationFrame,
+	requestIdleCallback,
+	setTimeout,
+	structuredClone,
+
+	initCustomElementRegistry,
+	initDocument,
+	initMediaQueryList,
+	initObject,
+	initPromise,
+	initRelativeIndexingMethod,
+	initStorage,
+	initString,
+	initWindow,
+} from './ponyfill'
+
+import { exclusions } from './exclusions'
+import { inheritence } from './inheritence'
+
+export {
+	AbortController,
+	AbortSignal,
+	Blob,
+	ByteLengthQueuingStrategy,
+	CanvasRenderingContext2D,
+	CharacterData,
+	Comment,
+	CountQueuingStrategy,
+	CSSStyleSheet,
+	CustomElementRegistry,
+	CustomEvent,
+	DOMException,
+	Document,
+	DocumentFragment,
+	Element,
+	Event,
+	EventTarget,
+	File,
+	FormData,
+	HTMLDocument,
+	HTMLElement,
+	HTMLBodyElement,
+	HTMLCanvasElement,
+	HTMLDivElement,
+	HTMLHeadElement,
+	HTMLHtmlElement,
+	HTMLImageElement,
+	HTMLSpanElement,
+	HTMLStyleElement,
+	HTMLTemplateElement,
+	HTMLUnknownElement,
+	Headers,
+	IntersectionObserver,
+	Image,
+	ImageData,
+	MediaQueryList,
+	MutationObserver,
+	Node,
+	NodeFilter,
+	NodeIterator,
+	OffscreenCanvas,
+	ReadableByteStreamController,
+	ReadableStream,
+	ReadableStreamBYOBReader,
+	ReadableStreamBYOBRequest,
+	ReadableStreamDefaultController,
+	ReadableStreamDefaultReader,
+	Request,
+	ResizeObserver,
+	Response,
+	ShadowRoot,
+	StyleSheet,
+	Text,
+	TransformStream,
+	TreeWalker,
+	URLPattern,
+	WritableStream,
+	WritableStreamDefaultController,
+	WritableStreamDefaultWriter,
+	Window,
+
+	alert,
+	atob,
+	btoa,
+	cancelAnimationFrame,
+	cancelIdleCallback,
+	clearTimeout,
+	fetch,
+	requestAnimationFrame,
+	requestIdleCallback,
+	setTimeout,
+	structuredClone,
+} from './ponyfill.js'
+
+export { pathToPosix } from './lib/utils'
+
+export const polyfill = (target: any, options?: PolyfillOptions) => {
+	const webAPIs = {
+		AbortController,
+		AbortSignal,
+		Blob,
+		ByteLengthQueuingStrategy,
+		CanvasRenderingContext2D,
+		CharacterData,
+		Comment,
+		CountQueuingStrategy,
+		CSSStyleSheet,
+		CustomElementRegistry,
+		CustomEvent,
+		Document,
+		DocumentFragment,
+		DOMException,
+		Element,
+		Event,
+		EventTarget,
+		File,
+		FormData,
+		HTMLDocument,
+		HTMLElement,
+		HTMLBodyElement,
+		HTMLCanvasElement,
+		HTMLDivElement,
+		HTMLHeadElement,
+		HTMLHtmlElement,
+		HTMLImageElement,
+		HTMLSpanElement,
+		HTMLStyleElement,
+		HTMLTemplateElement,
+		HTMLUnknownElement,
+		Headers,
+		IntersectionObserver,
+		Image,
+		ImageData,
+		MediaQueryList,
+		MutationObserver,
+		Node,
+		NodeFilter,
+		NodeIterator,
+		OffscreenCanvas,
+		ReadableByteStreamController,
+		ReadableStream,
+		ReadableStreamBYOBReader,
+		ReadableStreamBYOBRequest,
+		ReadableStreamDefaultController,
+		ReadableStreamDefaultReader,
+		Request,
+		ResizeObserver,
+		Response,
+		ShadowRoot,
+		Storage,
+		StyleSheet,
+		Text,
+		TransformStream,
+		TreeWalker,
+		URLPattern,
+		WritableStream,
+		WritableStreamDefaultController,
+		WritableStreamDefaultWriter,
+		Window,
+
+		alert,
+		atob,
+		btoa,
+		cancelAnimationFrame,
+		cancelIdleCallback,
+		clearTimeout,
+		fetch,
+		requestAnimationFrame,
+		requestIdleCallback,
+		setTimeout,
+		structuredClone,
+	}
+
+	// initialize exclude options
+	const excludeOptions = new Set(
+		typeof Object(options).exclude === 'string'
+			? String(Object(options).exclude).trim().split(/\s+/)
+		: Array.isArray(Object(options).exclude)
+			? Object(options).exclude.reduce(
+				(array: string[], entry: unknown) => array.splice(array.length, 0, ...(typeof entry === 'string' ? entry.trim().split(/\s+/) : [])) && array,
+				[]
+			)
+		: []
+	) as Set<string>
+
+	// expand exclude options using exclusion shorthands
+	for (const excludeOption of excludeOptions) {
+		if (excludeOption in exclusions) {
+			for (const exclusion of exclusions[excludeOption as keyof typeof exclusions]) {
+				excludeOptions.add(exclusion)
+			}
+		}
+	}
+
+	// apply each WebAPI
+	for (const name of Object.keys(webAPIs)) {
+		// skip WebAPIs that are excluded
+		if (excludeOptions.has(name)) continue
+
+		// skip WebAPIs that are built-in 
+		if (Object.hasOwnProperty.call(target, name)) continue
+
+		// define WebAPIs on the target
+		Object.defineProperty(target, name, { configurable: true, enumerable: true, writable: true, value: webAPIs[name as keyof typeof webAPIs] })
+	}
+
+	// ensure WebAPIs correctly inherit other WebAPIs
+	for (const name of Object.keys(webAPIs)) {
+		// skip WebAPIs that are excluded
+		if (excludeOptions.has(name)) continue
+
+		// skip WebAPIs that do not extend other WebAPIs
+		if (!Object.hasOwnProperty.call(inheritence, name)) continue
+
+		const Class = target[name]
+		const Super = target[inheritence[name as keyof typeof inheritence]]
+
+		// skip WebAPIs that are not available
+		if (!Class || !Super) continue
+
+		// skip WebAPIs that are already inherited correctly 
+		if (Object.getPrototypeOf(Class.prototype) === Super.prototype) continue
+
+		// define WebAPIs inheritence
+		Object.setPrototypeOf(Class.prototype, Super.prototype)
+	}
+
+	if (!excludeOptions.has('HTMLDocument') && !excludeOptions.has('HTMLElement')) {
+		initDocument(target, excludeOptions)
+
+		if (!excludeOptions.has('CustomElementRegistry')) {
+			initCustomElementRegistry(target, excludeOptions)
+		}
+	}
+
+	initObject(target, excludeOptions)
+	initMediaQueryList(target, excludeOptions)
+	initPromise(target, excludeOptions)
+	initRelativeIndexingMethod(target, excludeOptions)
+	initStorage(target, excludeOptions)
+	initString(target, excludeOptions)
+	initWindow(target, excludeOptions)
+
+	return target
+}
+
+polyfill.internals = (target: any, name: string) => {
+	const init = {
+		CustomElementRegistry: initCustomElementRegistry,
+		Document: initDocument,
+		MediaQueryList: initMediaQueryList,
+		Object: initObject,
+		Promise: initPromise,
+		RelativeIndexingMethod: initRelativeIndexingMethod,
+		Storage: initStorage,
+		String: initString,
+		Window: initWindow,
+	}
+
+	init[name as keyof typeof init](target, new Set<string>())
+
+	return target
+}
+
+interface PolyfillOptions {
+	exclude?: string | string[]
+	override?: Record<string, { (...args: any[]): any }>
+}