WakeLock

Returns true when the runtime exposes navigator.wakeLock. During prerender/SSR the check returns false rather than throwing, so defer it to OnAfterRenderAsync.

@inject Bit.Butil.WakeLock wakeLock

var supported = await wakeLock.IsSupported();

Request acquires a screen wake lock and returns true on success. Release drops the most recently acquired lock; it is a no-op when nothing is held, so it's always safe to call from cleanup code.

var acquired = await wakeLock.Request();
if (acquired)
{
    // screen stays awake while the page is visible
}

// later:
await wakeLock.Release();

Browsers always release the wake lock when the page is hidden. RequestPersistent acquires a lock and re-acquires it automatically every time the page becomes visible again - dispose the returned handle to stop the auto-reacquire and release the lock.

private IAsyncDisposable? _persistent;

_persistent = await wakeLock.RequestPersistent();

// screen stays awake across tab switches - the lock is restored on resume

// stop and release:
await _persistent.DisposeAsync();