Add in-app & Android TV screensaver (#946)

## Description
Adds both an optional in-app and Android TV OS (DreamService)
screensaver

Has settings for:
- Starting delay, options from 30s to 1 hour
- Duration to show each image, 30s to 2 minutes
- Show clock (separate from app-wide clock)
- Toggle animated zooming
- Set a max age rating to limit what content is shown
- Included media types: movies, tv shows, and/or photos

By default only Movies & TV Shows are included. But if you have like
family albums on your server, you could enable Photos too.

There's also an button to start the screensaver so you can see what it
looks like.

### Related issues
Closes #230

### Testing
Emulator, Onn 4k pro, nvidia shield using both in-app and OS
screensavers

## Screenshots
![screensaver_settings
Large](https://github.com/user-attachments/assets/9b3240dd-81cb-4c20-bc4e-b2bf38698b2f)

## AI or LLM usage
None

## Acknowledgements

Some of the skeleton code for setting up the `DreamService` with the
right lifecycle was copied and modified from the [official app's
implementation](https://github.com/jellyfin/jellyfin-androidtv/blob/master/app/src/main/java/org/jellyfin/androidtv/integration/dream/DreamServiceCompat.kt).

app/src/main/java/com/github/damontecres/wholphin/ui/Extensions.kt

@@ -5,7 +5,6 @@ import android.content.Context
 import android.content.ContextWrapper
 import android.media.AudioManager
 import android.view.KeyEvent
-import android.view.WindowManager
 import android.widget.Toast
 import androidx.compose.foundation.MarqueeAnimationMode
 import androidx.compose.foundation.basicMarquee
@@ -296,7 +295,7 @@ fun Arrangement.spacedByWithFooter(space: Dp) =
     }
 
 /**
- * Tries to find the [Activity] for the given [Context]. Often used for [keepScreenOn].
+ * Tries to find the [Activity] for the given [Context]
  */
 fun Context.findActivity(): Activity? {
     if (this is Activity) {
@@ -310,18 +309,6 @@ fun Context.findActivity(): Activity? {
     return null
 }
 
-/**
- * Keep the screen on for an [Activity]. Often used with [findActivity].
- */
-fun Activity.keepScreenOn(keep: Boolean) {
-    Timber.v("Keep screen on: $keep")
-    if (keep) {
-        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
-    } else {
-        window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
-    }
-}
-
 /**
  * Selectively log errors from Coil image loading.
  *

app/src/main/java/com/github/damontecres/wholphin/ui/components/AppScreensaver.kt

@@ -0,0 +1,214 @@
+package com.github.damontecres.wholphin.ui.components
+
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.geometry.center
+import androidx.compose.ui.graphics.BlendMode
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.RadialGradientShader
+import androidx.compose.ui.graphics.Shader
+import androidx.compose.ui.graphics.ShaderBrush
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.datastore.core.DataStore
+import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.tv.material3.MaterialTheme
+import androidx.tv.material3.Text
+import coil3.annotation.ExperimentalCoilApi
+import coil3.compose.AsyncImage
+import coil3.compose.useExistingImageAsPlaceholder
+import coil3.request.ImageRequest
+import coil3.request.transitionFactory
+import com.github.damontecres.wholphin.data.model.BaseItem
+import com.github.damontecres.wholphin.preferences.AppPreferences
+import com.github.damontecres.wholphin.services.ScreensaverService
+import com.github.damontecres.wholphin.ui.AppColors
+import com.github.damontecres.wholphin.ui.CrossFadeFactory
+import com.github.damontecres.wholphin.ui.nav.TOP_SCRIM_ALPHA
+import com.github.damontecres.wholphin.ui.nav.TOP_SCRIM_END_FRACTION
+import dagger.hilt.android.lifecycle.HiltViewModel
+import javax.inject.Inject
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.milliseconds
+
+@HiltViewModel
+class ScreensaverViewModel
+    @Inject
+    constructor(
+        private val screensaverService: ScreensaverService,
+        val preferencesDataStore: DataStore<AppPreferences>,
+    ) : ViewModel() {
+        val currentItem = screensaverService.createItemFlow(viewModelScope)
+    }
+
+data class CurrentItem(
+    val item: BaseItem,
+    val backdropUrl: String,
+    val logoUrl: String?,
+    val title: String,
+)
+
+@Composable
+fun AppScreensaver(
+    prefs: AppPreferences,
+    modifier: Modifier = Modifier,
+    viewModel: ScreensaverViewModel = hiltViewModel(),
+) {
+    val currentItem by viewModel.currentItem.collectAsState(null)
+    AppScreensaverContent(
+        currentItem = currentItem,
+        showClock = prefs.interfacePreferences.screensaverPreference.showClock,
+        duration = prefs.interfacePreferences.screensaverPreference.duration.milliseconds,
+        animate = prefs.interfacePreferences.screensaverPreference.animate,
+        modifier = modifier,
+    )
+}
+
+@OptIn(ExperimentalCoilApi::class)
+@Composable
+fun AppScreensaverContent(
+    currentItem: CurrentItem?,
+    showClock: Boolean,
+    duration: Duration,
+    animate: Boolean,
+    modifier: Modifier = Modifier,
+) {
+    Box(
+        modifier
+            .background(Color.Black),
+    ) {
+        val infiniteTransition = rememberInfiniteTransition()
+        val scale by infiniteTransition.animateFloat(
+            1f,
+            if (animate) 1.1f else 1f,
+            infiniteRepeatable(
+                tween(
+                    durationMillis = duration.inWholeMilliseconds.toInt(),
+                    delayMillis = 500,
+                    easing = LinearEasing,
+                ),
+                repeatMode = RepeatMode.Reverse,
+            ),
+        )
+        AsyncImage(
+            model =
+                ImageRequest
+                    .Builder(LocalContext.current)
+                    .data(currentItem?.backdropUrl)
+                    .transitionFactory(CrossFadeFactory(2000.milliseconds))
+                    .useExistingImageAsPlaceholder(true)
+                    .build(),
+            contentDescription = null,
+            modifier =
+                Modifier
+                    .fillMaxSize()
+                    .graphicsLayer {
+                        scaleX = scale
+                        scaleY = scale
+                    },
+        )
+
+        var logoError by remember(currentItem) { mutableStateOf(false) }
+        val alignment = listOf(Alignment.BottomStart, Alignment.BottomEnd).random()
+        if (!logoError) {
+            AsyncImage(
+                model =
+                    ImageRequest
+                        .Builder(LocalContext.current)
+                        .data(currentItem?.logoUrl)
+                        .transitionFactory(CrossFadeFactory(750.milliseconds))
+                        .build(),
+                contentDescription = "Logo",
+                onError = {
+                    logoError = true
+                },
+                modifier =
+                    Modifier
+                        .align(alignment)
+                        .size(width = 240.dp, height = 120.dp)
+                        .padding(16.dp),
+            )
+        } else {
+            Box(
+                modifier =
+                    Modifier
+                        .align(alignment)
+                        .padding(16.dp)
+                        .fillMaxWidth(.5f)
+                        .fillMaxHeight(.3f),
+            ) {
+                Text(
+                    text = currentItem?.title ?: "",
+                    style = MaterialTheme.typography.displaySmall,
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.align(alignment),
+                )
+            }
+        }
+
+        val largeRadialGradient =
+            remember {
+                object : ShaderBrush() {
+                    override fun createShader(size: Size): Shader {
+                        val biggerDimension = maxOf(size.height, size.width)
+                        return RadialGradientShader(
+                            colors = listOf(Color.Transparent, AppColors.TransparentBlack25),
+                            center = size.center,
+                            radius = biggerDimension / 1.5f,
+                            colorStops = listOf(0f, 0.85f),
+                        )
+                    }
+                }
+            }
+        Canvas(Modifier.fillMaxSize()) {
+            drawRect(
+                brush = largeRadialGradient,
+                blendMode = BlendMode.Multiply,
+            )
+            if (showClock) {
+                // Add scrim to make clock more readable
+                drawRect(
+                    brush =
+                        Brush.verticalGradient(
+                            colorStops =
+                                arrayOf(
+                                    0f to Color.Black.copy(alpha = TOP_SCRIM_ALPHA),
+                                    TOP_SCRIM_END_FRACTION to Color.Transparent,
+                                ),
+                        ),
+                    blendMode = BlendMode.Multiply,
+                )
+            }
+        }
+        if (showClock) {
+            TimeDisplay()
+        }
+    }
+}

app/src/main/java/com/github/damontecres/wholphin/ui/nav/ApplicationContent.kt

@@ -55,8 +55,8 @@ import javax.inject.Inject
 import kotlin.time.Duration.Companion.milliseconds
 
 // Top scrim configuration for text readability (clock, season tabs)
-private const val TOP_SCRIM_ALPHA = 0.55f
-private const val TOP_SCRIM_END_FRACTION = 0.25f // Fraction of backdrop image height
+const val TOP_SCRIM_ALPHA = 0.55f
+const val TOP_SCRIM_END_FRACTION = 0.25f // Fraction of backdrop image height
 
 @HiltViewModel
 class ApplicationContentViewModel

app/src/main/java/com/github/damontecres/wholphin/ui/playback/AmbientPlayerListener.kt

@@ -1,32 +0,0 @@
-package com.github.damontecres.wholphin.ui.playback
-
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.ui.platform.LocalContext
-import androidx.media3.common.Player
-import androidx.media3.common.Player.Listener
-import com.github.damontecres.wholphin.ui.findActivity
-import com.github.damontecres.wholphin.ui.keepScreenOn
-
-/**
- * Starts a [Player.Listener] that ensures the screen stays on without a screen saber during playback
- *
- * This will clean up the listener when disposed
- */
-@Composable
-fun AmbientPlayerListener(player: Player) {
-    val context = LocalContext.current
-    DisposableEffect(player) {
-        val listener =
-            object : Listener {
-                override fun onIsPlayingChanged(isPlaying: Boolean) {
-                    context.findActivity()?.keepScreenOn(isPlaying)
-                }
-            }
-        player.addListener(listener)
-        onDispose {
-            player.removeListener(listener)
-            context.findActivity()?.keepScreenOn(false)
-        }
-    }
-}

app/src/main/java/com/github/damontecres/wholphin/ui/playback/PlaybackPage.kt

@@ -186,7 +186,6 @@ fun PlaybackPageContent(
         }
     }
 
-    AmbientPlayerListener(player)
     var contentScale by remember(playerBackend) {
         mutableStateOf(
             if (playerBackend == PlayerBackend.MPV) {

app/src/main/java/com/github/damontecres/wholphin/ui/playback/PlaybackViewModel.kt

@@ -47,6 +47,7 @@ import com.github.damontecres.wholphin.services.PlayerFactory
 import com.github.damontecres.wholphin.services.PlaylistCreationResult
 import com.github.damontecres.wholphin.services.PlaylistCreator
 import com.github.damontecres.wholphin.services.RefreshRateService
+import com.github.damontecres.wholphin.services.ScreensaverService
 import com.github.damontecres.wholphin.services.StreamChoiceService
 import com.github.damontecres.wholphin.services.UserPreferencesService
 import com.github.damontecres.wholphin.ui.isNotNullOrBlank
@@ -140,6 +141,7 @@ class PlaybackViewModel
         val streamChoiceService: StreamChoiceService,
         private val userPreferencesService: UserPreferencesService,
         private val imageUrlService: ImageUrlService,
+        private val screensaverService: ScreensaverService,
         @Assisted private val destination: Destination,
     ) : ViewModel(),
         Player.Listener,
@@ -189,7 +191,10 @@ class PlaybackViewModel
 
         init {
             viewModelScope.launchIO {
-                addCloseable { disconnectPlayer() }
+                addCloseable {
+                    screensaverService.keepScreenOn(false)
+                    disconnectPlayer()
+                }
                 init()
             }
         }
@@ -1424,6 +1429,10 @@ class PlaybackViewModel
                 }
             }
         }
+
+        override fun onIsPlayingChanged(isPlaying: Boolean) {
+            screensaverService.keepScreenOn(isPlaying)
+        }
     }
 
 data class PlayerState(

app/src/main/java/com/github/damontecres/wholphin/ui/preferences/ComposablePreference.kt

@@ -43,7 +43,6 @@ import com.github.damontecres.wholphin.ui.nav.Destination
 import com.github.damontecres.wholphin.util.ExceptionHandler
 import kotlinx.coroutines.launch
 import java.io.File
-import java.util.SortedSet
 
 @Suppress("UNCHECKED_CAST")
 @Composable
@@ -226,7 +225,7 @@ fun <T> ComposablePreference(
         }
 
         is AppMultiChoicePreference<*, *> -> {
-            val values = stringArrayResource(preference.displayValues).toSortedSet()
+            val values = stringArrayResource(preference.displayValues)
             val summary =
                 preference.summary?.let { stringResource(it) }
                     ?: preference.summary(context, value)
@@ -237,12 +236,15 @@ fun <T> ComposablePreference(
                     list
                 }
             MultiChoicePreference(
-                possibleValues = values as SortedSet<Any>,
+                possibleValues = preference.allValues,
                 selectedValues = selectedValues,
                 title = title,
                 summary = summary,
                 onValueChange = {
-                    onValueChange.invoke(selectedValues.toList() as T)
+                    onValueChange.invoke(it.toList() as T)
+                },
+                valueDisplay = { index, _ ->
+                    Text(values[index])
                 },
             )
         }

app/src/main/java/com/github/damontecres/wholphin/ui/preferences/MultiChoicePreference.kt

@@ -19,12 +19,12 @@ import com.github.damontecres.wholphin.ui.components.DialogPopup
 fun <T> MultiChoicePreference(
     title: String,
     summary: String?,
-    possibleValues: Set<T>,
+    possibleValues: List<T>,
     selectedValues: Set<T>,
     onValueChange: (List<T>) -> Unit,
     modifier: Modifier = Modifier,
     interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
-    valueDisplay: @Composable (item: T) -> Unit = { Text(it.toString()) },
+    valueDisplay: @Composable (index: Int, item: T) -> Unit = { _, item -> Text(item.toString()) },
 ) {
 //    val values = stringArrayResource(preference.displayValues).toList()
 //    val summary =
@@ -59,7 +59,7 @@ fun <T> MultiChoicePreference(
                     items =
                         possibleValues.mapIndexed { index, item ->
                             DialogItem(
-                                headlineContent = { valueDisplay.invoke(item) },
+                                headlineContent = { valueDisplay.invoke(index, item) },
                                 trailingContent = {
                                     Switch(
                                         checked = selectedValues.contains(item),

app/src/main/java/com/github/damontecres/wholphin/ui/preferences/PreferenceUtils.kt

@@ -35,6 +35,7 @@ enum class PreferenceScreenOption {
     ADVANCED,
     EXO_PLAYER,
     MPV,
+    SCREENSAVER,
     ;
 
     companion object {

app/src/main/java/com/github/damontecres/wholphin/ui/preferences/PreferencesContent.kt

@@ -50,8 +50,10 @@ import com.github.damontecres.wholphin.preferences.AppPreferences
 import com.github.damontecres.wholphin.preferences.ExoPlayerPreferences
 import com.github.damontecres.wholphin.preferences.MpvPreferences
 import com.github.damontecres.wholphin.preferences.PlayerBackend
+import com.github.damontecres.wholphin.preferences.ScreensaverPreference
 import com.github.damontecres.wholphin.preferences.advancedPreferences
 import com.github.damontecres.wholphin.preferences.basicPreferences
+import com.github.damontecres.wholphin.preferences.screensaverPreferences
 import com.github.damontecres.wholphin.preferences.updatePlaybackPreferences
 import com.github.damontecres.wholphin.services.SeerrConnectionStatus
 import com.github.damontecres.wholphin.services.UpdateChecker
@@ -128,6 +130,7 @@ fun PreferencesContent(
             PreferenceScreenOption.ADVANCED -> advancedPreferences
             PreferenceScreenOption.EXO_PLAYER -> ExoPlayerPreferences
             PreferenceScreenOption.MPV -> MpvPreferences
+            PreferenceScreenOption.SCREENSAVER -> screensaverPreferences
         }
     val screenTitle =
         when (preferenceScreenOption) {
@@ -135,6 +138,7 @@ fun PreferencesContent(
             PreferenceScreenOption.ADVANCED -> R.string.advanced_settings
             PreferenceScreenOption.EXO_PLAYER -> R.string.exoplayer_options
             PreferenceScreenOption.MPV -> R.string.mpv_options
+            PreferenceScreenOption.SCREENSAVER -> R.string.screensaver_settings
         }
 
     var visible by remember { mutableStateOf(false) }
@@ -283,7 +287,9 @@ fun PreferencesContent(
                                             if (movementSounds) playOnClickSound(context)
                                             if (release != null && updateAvailable) {
                                                 release?.let {
-                                                    viewModel.navigationManager.navigateTo(Destination.UpdateApp)
+                                                    viewModel.navigationManager.navigateTo(
+                                                        Destination.UpdateApp,
+                                                    )
                                                 }
                                             } else {
                                                 updateVM.init(preferences.updateUrl)
@@ -313,7 +319,8 @@ fun PreferencesContent(
                                     val summary =
                                         remember(cacheUsage) {
                                             cacheUsage.let {
-                                                val diskMB = it.imageDiskUsed / AppPreference.MEGA_BIT
+                                                val diskMB =
+                                                    it.imageDiskUsed / AppPreference.MEGA_BIT
                                                 val memoryUsedMB =
                                                     it.imageMemoryUsed / AppPreference.MEGA_BIT
                                                 val memoryMaxMB =
@@ -392,7 +399,10 @@ fun PreferencesContent(
                                             seerrDialogMode =
                                                 when (val conn = seerrConnection) {
                                                     is SeerrConnectionStatus.Error -> {
-                                                        SeerrDialogMode.Error(conn.serverUrl, conn.ex)
+                                                        SeerrDialogMode.Error(
+                                                            conn.serverUrl,
+                                                            conn.ex,
+                                                        )
                                                     }
 
                                                     SeerrConnectionStatus.NotConfigured -> {
@@ -409,9 +419,19 @@ fun PreferencesContent(
                                         modifier = Modifier,
                                         summary =
                                             when (seerrConnection) {
-                                                is SeerrConnectionStatus.Error -> stringResource(R.string.voice_error_server)
-                                                SeerrConnectionStatus.NotConfigured -> stringResource(R.string.add_server)
-                                                is SeerrConnectionStatus.Success -> stringResource(R.string.enabled)
+                                                is SeerrConnectionStatus.Error -> {
+                                                    stringResource(R.string.voice_error_server)
+                                                }
+
+                                                SeerrConnectionStatus.NotConfigured -> {
+                                                    stringResource(
+                                                        R.string.add_server,
+                                                    )
+                                                }
+
+                                                is SeerrConnectionStatus.Success -> {
+                                                    stringResource(R.string.enabled)
+                                                }
                                             },
                                         onLongClick = {},
                                         interactionSource = interactionSource,
@@ -434,6 +454,19 @@ fun PreferencesContent(
                                     )
                                 }
 
+                                ScreensaverPreference.Start -> {
+                                    ClickPreference(
+                                        title = stringResource(pref.title),
+                                        onClick = {
+                                            viewModel.screensaverService.start()
+                                        },
+                                        modifier = Modifier,
+                                        summary = pref.summary(context, null),
+                                        onLongClick = {},
+                                        interactionSource = interactionSource,
+                                    )
+                                }
+
                                 else -> {
                                     val value = pref.getter.invoke(preferences)
                                     ComposablePreference(
@@ -597,6 +630,7 @@ fun PreferencesPage(
             PreferenceScreenOption.ADVANCED,
             PreferenceScreenOption.EXO_PLAYER,
             PreferenceScreenOption.MPV,
+            PreferenceScreenOption.SCREENSAVER,
             -> {
                 PreferencesContent(
                     initialPreferences,

app/src/main/java/com/github/damontecres/wholphin/ui/preferences/PreferencesViewModel.kt

@@ -11,6 +11,7 @@ import com.github.damontecres.wholphin.preferences.resetSubtitles
 import com.github.damontecres.wholphin.preferences.updateSubtitlePreferences
 import com.github.damontecres.wholphin.services.BackdropService
 import com.github.damontecres.wholphin.services.NavigationManager
+import com.github.damontecres.wholphin.services.ScreensaverService
 import com.github.damontecres.wholphin.services.SeerrServerRepository
 import com.github.damontecres.wholphin.ui.detail.DebugViewModel.Companion.sendAppLogs
 import com.github.damontecres.wholphin.ui.launchIO
@@ -35,6 +36,7 @@ class PreferencesViewModel
         val preferenceDataStore: DataStore<AppPreferences>,
         val navigationManager: NavigationManager,
         val backdropService: BackdropService,
+        val screensaverService: ScreensaverService,
         private val rememberTabManager: RememberTabManager,
         private val serverRepository: ServerRepository,
         private val seerrServerRepository: SeerrServerRepository,

app/src/main/java/com/github/damontecres/wholphin/ui/slideshow/SlideshowPage.kt

@@ -14,7 +14,6 @@ import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -63,8 +62,6 @@ import com.github.damontecres.wholphin.data.model.VideoFilter
 import com.github.damontecres.wholphin.ui.AppColors
 import com.github.damontecres.wholphin.ui.components.ErrorMessage
 import com.github.damontecres.wholphin.ui.components.LoadingPage
-import com.github.damontecres.wholphin.ui.findActivity
-import com.github.damontecres.wholphin.ui.keepScreenOn
 import com.github.damontecres.wholphin.ui.nav.Destination
 import com.github.damontecres.wholphin.ui.playback.isDirectionalDpad
 import com.github.damontecres.wholphin.ui.playback.isDpad
@@ -208,12 +205,6 @@ fun SlideshowPage(
     LaunchedEffect(slideshowActive) {
         player.repeatMode =
             if (slideshowState.enabled) Player.REPEAT_MODE_OFF else Player.REPEAT_MODE_ONE
-        context.findActivity()?.keepScreenOn(slideshowActive)
-    }
-    DisposableEffect(Unit) {
-        onDispose {
-            context.findActivity()?.keepScreenOn(false)
-        }
     }
 
     var longPressing by remember { mutableStateOf(false) }

app/src/main/java/com/github/damontecres/wholphin/ui/slideshow/SlideshowViewModel.kt

@@ -18,6 +18,7 @@ import com.github.damontecres.wholphin.data.model.VideoFilter
 import com.github.damontecres.wholphin.preferences.AppPreference
 import com.github.damontecres.wholphin.services.ImageUrlService
 import com.github.damontecres.wholphin.services.PlayerFactory
+import com.github.damontecres.wholphin.services.ScreensaverService
 import com.github.damontecres.wholphin.services.UserPreferencesService
 import com.github.damontecres.wholphin.ui.PhotoItemFields
 import com.github.damontecres.wholphin.ui.launchIO
@@ -67,6 +68,7 @@ class SlideshowViewModel
         private val serverRepository: ServerRepository,
         private val imageUrlService: ImageUrlService,
         private val userPreferencesService: UserPreferencesService,
+        private val screensaverService: ScreensaverService,
         @Assisted val slideshowSettings: Destination.Slideshow,
     ) : ViewModel(),
         Player.Listener {
@@ -110,6 +112,7 @@ class SlideshowViewModel
 
         init {
             addCloseable {
+                screensaverService.keepScreenOn(false)
                 player.removeListener(this@SlideshowViewModel)
                 player.release()
             }
@@ -282,6 +285,7 @@ class SlideshowViewModel
         private var slideshowJob: Job? = null
 
         fun startSlideshow() {
+            screensaverService.keepScreenOn(true)
             _slideshow.update {
                 SlideshowState(enabled = true, paused = false)
             }
@@ -295,6 +299,7 @@ class SlideshowViewModel
         }
 
         fun stopSlideshow() {
+            screensaverService.keepScreenOn(false)
             slideshowJob?.cancel()
             _slideshow.update {
                 SlideshowState(enabled = false, paused = false)