feat: add BLE write polyfill for writeValueWithResponse and writeValueWithoutResponse

Author: afarago

src/bleWritePolyfill.ts

@@ -0,0 +1,38 @@
+// Polyfill for writeValueWithResponse and writeValueWithoutResponse
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+if (typeof (window as any).BluetoothRemoteGATTCharacteristic !== 'undefined') {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const proto = (window as any).BluetoothRemoteGATTCharacteristic.prototype as any;
+
+    if (!proto.writeValueWithResponse) {
+        proto.writeValueWithResponse = function (value: BufferSource) {
+            // Fallback to writeValue if available
+            if (typeof this.writeValue === 'function') {
+                return this.writeValue(value);
+            }
+            return Promise.reject(
+                new Error(
+                    'writeValueWithResponse and writeValue are not supported on this device',
+                ),
+            );
+        };
+    }
+
+    if (!proto.writeValueWithoutResponse) {
+        proto.writeValueWithoutResponse = function (value: BufferSource) {
+            // Fallback to writeValue if available
+            if (typeof this.writeValue === 'function') {
+                return this.writeValue(value);
+            }
+            return Promise.reject(
+                new Error(
+                    'writeValueWithoutResponse and writeValue are not supported on this device',
+                ),
+            );
+        };
+    }
+}
+
+export {};
+// --- IGNORE ---

src/index.tsx

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2020-2023 The Pybricks Authors
 
+import './bleWritePolyfill';
+
 import './index.scss';
 import { HotkeysProvider, OverlayToaster } from '@blueprintjs/core';
 import { configureStore } from '@reduxjs/toolkit';