Add AmbientPlayerListener

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

@@ -1,8 +1,11 @@
 package com.github.damontecres.dolphin.ui
 
+import android.app.Activity
 import android.content.Context
+import android.content.ContextWrapper
 import android.media.AudioManager
 import android.view.KeyEvent
+import android.view.WindowManager
 import androidx.compose.foundation.MarqueeAnimationMode
 import androidx.compose.foundation.basicMarquee
 import androidx.compose.foundation.layout.Arrangement
@@ -229,3 +232,24 @@ fun Arrangement.spacedByWithFooter(space: Dp) =
             }
         }
     }
+
+fun Context.findActivity(): Activity? {
+    if (this is Activity) {
+        return this
+    }
+    var context = this
+    while (context is ContextWrapper) {
+        if (context is Activity) return context
+        context = context.baseContext
+    }
+    return null
+}
+
+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)
+    }
+}

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

@@ -0,0 +1,27 @@
+package com.github.damontecres.dolphin.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.dolphin.ui.findActivity
+import com.github.damontecres.dolphin.ui.keepScreenOn
+
+@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/dolphin/ui/playback/PlaybackContent.kt

@@ -118,6 +118,7 @@ fun PlaybackContent(
     DisposableEffect(Unit) {
         onDispose { player.removeListener(cueListener) }
     }
+    AmbientPlayerListener(player)
 
     if (stream == null) {
         // TODO loading