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Detect webcams unplugged

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This commit is contained in:
David Négrier 2021-06-01 16:43:16 +02:00
parent 9aeb18df37
commit b04c438d6f
1 changed files with 48 additions and 8 deletions
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56
front/src/Stores/MediaStore.ts
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@ -209,10 +209,14 @@ function createVideoConstraintStore() {
return {
subscribe,
setDeviceId: (deviceId: string) => update((constraints) => {
constraints.deviceId = {
exact: deviceId
};
setDeviceId: (deviceId: string|undefined) => update((constraints) => {
if (deviceId !== undefined) {
constraints.deviceId = {
exact: deviceId
};
} else {
delete constraints.deviceId;
}
return constraints;
}),
@ -241,15 +245,19 @@ function createAudioConstraintStore() {
return {
subscribe,
setDeviceId: (deviceId: string) => update((constraints) => {
setDeviceId: (deviceId: string|undefined) => update((constraints) => {
selectedDeviceId = deviceId;
if (typeof(constraints) === 'boolean') {
constraints = {}
}
constraints.deviceId = {
exact: selectedDeviceId
};
if (deviceId !== undefined) {
constraints.deviceId = {
exact: selectedDeviceId
};
} else {
delete constraints.deviceId;
}
return constraints;
})
@ -552,3 +560,35 @@ export const cameraListStore = derived(deviceListStore, ($deviceListStore) => {
export const microphoneListStore = derived(deviceListStore, ($deviceListStore) => {
return $deviceListStore.filter(device => device.kind === 'audioinput');
});
// TODO: detect the new webcam and automatically switch on it.
cameraListStore.subscribe((devices) => {
// If the selected camera is unplugged, let's remove the constraint on deviceId
const constraints = get(videoConstraintStore);
if (!constraints.deviceId) {
return;
}
// If we cannot find the device ID, let's remove it.
// @ts-ignore
if (!devices.find(device => device.deviceId === constraints.deviceId.exact)) {
videoConstraintStore.setDeviceId(undefined);
}
});
microphoneListStore.subscribe((devices) => {
// If the selected camera is unplugged, let's remove the constraint on deviceId
const constraints = get(audioConstraintStore);
if (typeof constraints === 'boolean') {
return;
}
if (!constraints.deviceId) {
return;
}
// If we cannot find the device ID, let's remove it.
// @ts-ignore
if (!devices.find(device => device.deviceId === constraints.deviceId.exact)) {
audioConstraintStore.setDeviceId(undefined);
}
});