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Code Issues Releases Activity

add polyfill for new Web Bluetooth methods

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This commit is contained in:
David Lechner
2020-05-01 21:37:45 -05:00
parent 0a50ebddd7
commit 9d545f8f5c
3 changed files with 49 additions and 15 deletions
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src/services/bootloader.ts
+13 -12
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@@ -10,10 +10,14 @@ import {
didSend,
} from '../actions/bootloader';
import { CharacteristicUUID, ServiceUUID } from '../protocols/bootloader';
import {
PolyfillBluetoothRemoteGATTCharacteristic,
polyfillBluetoothRemoteGATTCharacteristic,
} from '../utils/web-bluetooth';
import { combineServices } from '.';
let device: BluetoothDevice | undefined;
let char: BluetoothRemoteGATTCharacteristic | undefined;
let char: PolyfillBluetoothRemoteGATTCharacteristic | undefined;
async function connect(action: Action, dispatch: Dispatch): Promise<void> {
if (action.type !== BootloaderConnectionActionType.Connect) {
@@ -55,7 +59,9 @@ async function connect(action: Action, dispatch: Dispatch): Promise<void> {
const server = await device.gatt.connect();
try {
const service = await server.getPrimaryService(ServiceUUID);
char = await service.getCharacteristic(CharacteristicUUID);
char = polyfillBluetoothRemoteGATTCharacteristic(
await service.getCharacteristic(CharacteristicUUID),
);
char.addEventListener('characteristicvaluechanged', () => {
if (!char || !char.value) {
return;
@@ -82,16 +88,11 @@ async function send(action: Action, dispatch: Dispatch): Promise<void> {
throw Error('Not connected');
}
const sendAction = action as BootloaderConnectionSendAction;
// Fall back to legacy WebBluetooth writeValue if new methods are not
// available.
const writeValue = sendAction.withResponse
? // eslint-disable-next-line @typescript-eslint/ban-ts-ignore
// @ts-ignore
char.writeValueWithResponse || char.writeValue
: // eslint-disable-next-line @typescript-eslint/ban-ts-ignore
// @ts-ignore
char.writeValueWithoutResponse || char.writeValue;
await writeValue(sendAction.data);
if (sendAction.withResponse) {
await char.writeValueWithResponse(sendAction.data);
} else {
await char.writeValueWithoutResponse(sendAction.data);
}
dispatch(didSend());
} catch (err) {
dispatch(didSend(err));