[DRAFT] Custom Event & File Polyfills

packages/php-wasm/progress/src/lib/custom-event.ts

@@ -0,0 +1,17 @@
+export const CustomEvent =
+	globalThis.CustomEvent ??
+	class extends globalThis.Event {
+		detail = null;
+		constructor(
+			name: string,
+			options: {
+				detail?: any;
+				bubbles?: boolean;
+				cancellable?: boolean;
+				composed?: boolean;
+			} = {}
+		) {
+			super(name, options);
+			this.detail = options.detail;
+		}
+	};

packages/php-wasm/progress/src/lib/emscripten-download-monitor.ts

@@ -1,3 +1,5 @@
+import { CustomEvent } from './custom-event';
+
 /*
  * An approximate total file size to use when the actual
  * total number of bytes is missing.

packages/php-wasm/progress/src/lib/progress-observer.ts

@@ -1,3 +1,4 @@
+import { CustomEvent } from './custom-event';
 import { DownloadProgress } from './emscripten-download-monitor';
 
 export type ProgressMode =

packages/php-wasm/progress/src/lib/progress-tracker.ts

@@ -1,3 +1,4 @@
+import { CustomEvent } from './custom-event';
 /**
  * Options for customizing the progress tracker.
  */

packages/playground/blueprints/src/lib/steps/common.ts

@@ -52,6 +52,32 @@ export async function fileToUint8Array(file: File) {
  * Import the polyfilled File class below to ensure its buffer is available to
  * functions like writeFile (./client-methods.ts) and fileToUint8Array (above).
  */
+
+globalThis.File =
+	globalThis.File ||
+	class extends Blob {
+		_name: string;
+		lastModified: number | undefined;
+		constructor(
+			bits: any,
+			name: string,
+			options: { type?: string; lastModified?: number } = {}
+		) {
+			super(bits);
+			if (options.lastModified) {
+				this.lastModified = options.lastModified;
+			}
+			if (name) {
+				this._name = name;
+			} else {
+				this._name = '';
+			}
+		}
+		override get name() {
+			return this._name;
+		}
+	};
+
 class FilePolyfill extends File {
 	buffers: BlobPart[];
 	constructor(buffers: BlobPart[], name: string) {