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fix: Allow getCameraDevice to return undefined when no Devices are available (e.g. iOS Simulator) (#1848)

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fix: Allow `getCameraDevice` to return `undefined` when no Devices are available
This commit is contained in:
Marc Rousavy 2023-09-26 11:24:24 +02:00 committed by GitHub
parent bdc3fd0341
commit f7428f26a4
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1 changed files with 3 additions and 4 deletions
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package/src/devices/getCameraDevice.ts
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@ -1,5 +1,4 @@
import { CameraDevice, CameraPosition, PhysicalCameraDeviceType } from '../CameraDevice'; import { CameraDevice, CameraPosition, PhysicalCameraDeviceType } from '../CameraDevice';
import { CameraRuntimeError } from '../CameraError';
export interface DeviceFilter { export interface DeviceFilter {
/** /**
@ -24,7 +23,7 @@ export interface DeviceFilter {
} }
/** /**
* Get the best matching Camera device that best satisfies your requirements using a sorting filter. * Get the best matching Camera device that best satisfies your requirements using a sorting filter, or `undefined` if {@linkcode devices} does not contain any devices.
* @param position The position of the Camera device relative to the phone. * @param position The position of the Camera device relative to the phone.
* @param filter The filter you want to use. The Camera device that matches your filter the closest will be returned * @param filter The filter you want to use. The Camera device that matches your filter the closest will be returned
* @returns The Camera device that matches your filter the closest, or `undefined` if no such Camera Device exists on the given {@linkcode position}. * @returns The Camera device that matches your filter the closest, or `undefined` if no such Camera Device exists on the given {@linkcode position}.
@ -36,13 +35,13 @@ export interface DeviceFilter {
* }) * })
* ``` * ```
*/ */
export function getCameraDevice(devices: CameraDevice[], position: CameraPosition, filter: DeviceFilter = {}): CameraDevice { export function getCameraDevice(devices: CameraDevice[], position: CameraPosition, filter: DeviceFilter = {}): CameraDevice | undefined {
const explicitlyWantsNonWideAngle = filter.physicalDevices != null && !filter.physicalDevices.includes('wide-angle-camera'); const explicitlyWantsNonWideAngle = filter.physicalDevices != null && !filter.physicalDevices.includes('wide-angle-camera');
const filtered = devices.filter((d) => d.position === position); const filtered = devices.filter((d) => d.position === position);
let bestDevice = filtered[0]; let bestDevice = filtered[0];
if (bestDevice == null) throw new CameraRuntimeError('device/invalid-device', 'No Camera Device could be found!'); if (bestDevice == null) return undefined;
// Compare each device using a point scoring system // Compare each device using a point scoring system
for (const device of devices) { for (const device of devices) {