Fixes a few UI issues (#27)

Fixes:
- Rounded corners on dialogs during playback
- Follow up to #23 to show errors on Main thread
- Show login errors higher up to ensure they aren't blocked by the
keyboard
- Faster tracks switching by not recomposing the player surface
- Refocus on controller buttons after switching tracks
- Show playback errors when they occur

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

@@ -23,6 +23,7 @@ import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.relocation.BringIntoViewRequester
 import androidx.compose.foundation.relocation.bringIntoViewRequester
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -306,6 +307,7 @@ fun LeftPlaybackButtons(
     modifier: Modifier = Modifier,
 ) {
     var showMoreOptions by remember { mutableStateOf(false) }
+    val focusRequester = remember { FocusRequester() }
     Row(
         modifier = modifier.focusGroup(),
         horizontalArrangement = Arrangement.spacedBy(buttonSpacing),
@@ -319,6 +321,7 @@ fun LeftPlaybackButtons(
             },
             enabled = true,
             onControllerInteraction = onControllerInteraction,
+            modifier = Modifier.focusRequester(focusRequester),
         )
     }
     if (showMoreOptions) {
@@ -329,7 +332,10 @@ fun LeftPlaybackButtons(
             }
         BottomDialog(
             choices = options,
-            onDismissRequest = { showMoreOptions = false },
+            onDismissRequest = {
+                showMoreOptions = false
+                focusRequester.tryRequestFocus()
+            },
             onSelectChoice = { index, choice ->
                 val action = moreButtonOptions.options[choice] ?: PlaybackAction.ShowDebug
                 onPlaybackActionClick.invoke(action)
@@ -359,6 +365,10 @@ fun RightPlaybackButtons(
     var showAudioDialog by remember { mutableStateOf(false) }
     var showSpeedDialog by remember { mutableStateOf(false) }
     var showScaleDialog by remember { mutableStateOf(false) }
+
+    val captionFocusRequester = remember { FocusRequester() }
+    val settingsFocusRequester = remember { FocusRequester() }
+
     Row(
         modifier = modifier.focusGroup(),
         horizontalArrangement = Arrangement.spacedBy(buttonSpacing),
@@ -372,6 +382,7 @@ fun RightPlaybackButtons(
                 showCaptionDialog = true
             },
             onControllerInteraction = onControllerInteraction,
+            modifier = Modifier.focusRequester(captionFocusRequester),
         )
         // Playback speed, etc
         PlaybackButton(
@@ -382,8 +393,10 @@ fun RightPlaybackButtons(
             },
             enabled = true,
             onControllerInteraction = onControllerInteraction,
+            modifier = Modifier.focusRequester(settingsFocusRequester),
         )
     }
+    val scope = rememberCoroutineScope()
     if (showCaptionDialog) {
         val options = subtitleStreams.map { it.displayName }
         Timber.v("subtitleIndex=$subtitleIndex, options=$options")
@@ -395,6 +408,11 @@ fun RightPlaybackButtons(
             onDismissRequest = {
                 onControllerInteraction.invoke()
                 showCaptionDialog = false
+                scope.launch {
+                    // TODO this is hacky, but playback changes force refocus and this is a workaround
+                    delay(250L)
+                    captionFocusRequester.tryRequestFocus()
+                }
             },
             onSelectChoice = { index, _ ->
                 val send =
@@ -434,6 +452,10 @@ fun RightPlaybackButtons(
             onDismissRequest = {
                 onControllerInteraction.invoke()
                 showAudioDialog = false
+                scope.launch {
+                    delay(250L)
+                    settingsFocusRequester.tryRequestFocus()
+                }
             },
             onSelectChoice = { index, _ ->
                 onPlaybackActionClick.invoke(PlaybackAction.ToggleAudio(audioStreams[index].index))
@@ -448,6 +470,10 @@ fun RightPlaybackButtons(
             onDismissRequest = {
                 onControllerInteraction.invoke()
                 showSpeedDialog = false
+                scope.launch {
+                    delay(250L)
+                    settingsFocusRequester.tryRequestFocus()
+                }
             },
             onSelectChoice = { _, value ->
                 onPlaybackActionClick.invoke(PlaybackAction.PlaybackSpeed(value.toFloat()))
@@ -462,6 +488,10 @@ fun RightPlaybackButtons(
             onDismissRequest = {
                 onControllerInteraction.invoke()
                 showScaleDialog = false
+                scope.launch {
+                    delay(250L)
+                    settingsFocusRequester.tryRequestFocus()
+                }
             },
             onSelectChoice = { index, _ ->
                 onPlaybackActionClick.invoke(PlaybackAction.Scale(playbackScaleOptions.keys.toList()[index]))
@@ -601,7 +631,7 @@ private fun BottomDialog(
                 Modifier
                     .wrapContentSize()
                     .padding(8.dp)
-                    .background(Color.DarkGray),
+                    .background(Color.DarkGray, shape = RoundedCornerShape(16.dp)),
         ) {
             Column(
                 modifier =

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

@@ -38,7 +38,6 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.RectangleShape
 import androidx.compose.ui.input.key.onKeyEvent
 import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.viewinterop.AndroidView
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
@@ -61,9 +60,11 @@ import com.github.damontecres.wholphin.data.model.Playlist
 import com.github.damontecres.wholphin.preferences.UserPreferences
 import com.github.damontecres.wholphin.preferences.skipBackOnResume
 import com.github.damontecres.wholphin.ui.OneTimeLaunchedEffect
+import com.github.damontecres.wholphin.ui.components.ErrorMessage
 import com.github.damontecres.wholphin.ui.components.LoadingPage
 import com.github.damontecres.wholphin.ui.nav.Destination
 import com.github.damontecres.wholphin.ui.tryRequestFocus
+import com.github.damontecres.wholphin.util.LoadingState
 import com.github.damontecres.wholphin.util.seasonEpisode
 import kotlinx.coroutines.delay
 import org.jellyfin.sdk.model.api.DeviceProfile
@@ -84,15 +85,22 @@ fun PlaybackPage(
     modifier: Modifier = Modifier,
     viewModel: PlaybackViewModel = hiltViewModel(),
 ) {
-    val prefs = preferences.appPreferences.playbackPreferences
-    val context = LocalContext.current
-    val scope = rememberCoroutineScope()
     LaunchedEffect(destination.itemId) {
         viewModel.init(destination, deviceProfile, preferences)
     }
-    val player = viewModel.player
-    val stream by viewModel.stream.observeAsState(null)
 
+    val loading by viewModel.loading.observeAsState(LoadingState.Loading)
+    when (val st = loading) {
+        is LoadingState.Error -> ErrorMessage(st, modifier)
+        LoadingState.Pending,
+        LoadingState.Loading,
+        -> LoadingPage(modifier)
+
+        LoadingState.Success -> {
+            val prefs = preferences.appPreferences.playbackPreferences
+            val scope = rememberCoroutineScope()
+
+            val player = viewModel.player
             val title by viewModel.title.observeAsState(null)
             val subtitle by viewModel.subtitle.observeAsState(null)
             val duration by viewModel.duration.observeAsState(null)
@@ -133,11 +141,6 @@ fun PlaybackPage(
                 onDispose { player.removeListener(cueListener) }
             }
             AmbientPlayerListener(player)
-
-    if (stream == null) {
-        LoadingPage()
-    } else {
-        stream?.let {
             var contentScale by remember { mutableStateOf(ContentScale.Fit) }
             var playbackSpeed by remember { mutableFloatStateOf(1.0f) }
             LaunchedEffect(playbackSpeed) { player.setPlaybackSpeed(playbackSpeed) }
@@ -146,6 +149,7 @@ fun PlaybackPage(
             val scaledModifier =
                 Modifier.resizeWithContentScale(contentScale, presentationState.videoSizeDp)
             val focusRequester = remember { FocusRequester() }
+            val controllerFocusRequester = remember { FocusRequester() }
             val playPauseState = rememberPlayPauseButtonState(player)
             val seekBarState = rememberSeekBarState(player, scope)
 

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

@@ -10,6 +10,7 @@ import androidx.lifecycle.viewModelScope
 import androidx.media3.common.C
 import androidx.media3.common.Format
 import androidx.media3.common.MediaItem
+import androidx.media3.common.PlaybackException
 import androidx.media3.common.Player
 import androidx.media3.common.TrackSelectionOverride
 import androidx.media3.common.Tracks
@@ -32,6 +33,8 @@ import com.github.damontecres.wholphin.ui.showToast
 import com.github.damontecres.wholphin.ui.toServerString
 import com.github.damontecres.wholphin.util.EqualityMutableLiveData
 import com.github.damontecres.wholphin.util.ExceptionHandler
+import com.github.damontecres.wholphin.util.LoadingExceptionHandler
+import com.github.damontecres.wholphin.util.LoadingState
 import com.github.damontecres.wholphin.util.TrackActivityPlaybackListener
 import com.github.damontecres.wholphin.util.TrackSupport
 import com.github.damontecres.wholphin.util.checkForSupport
@@ -105,7 +108,7 @@ class PlaybackViewModel
                     playWhenReady = true
                 }
 
-        val stream = MutableLiveData<StreamDecision?>(null)
+        val loading = MutableLiveData<LoadingState>(LoadingState.Loading)
 
         val title = MutableLiveData<String?>(null)
         val subtitle = MutableLiveData<String?>(null)
@@ -152,7 +155,12 @@ class PlaybackViewModel
             val itemId = destination.itemId
             this.itemId = itemId
             val item = destination.item
-            viewModelScope.launch(ExceptionHandler() + Dispatchers.IO) {
+            viewModelScope.launch(
+                LoadingExceptionHandler(
+                    loading,
+                    "Error preparing for plaback on ${destination.itemId}",
+                ) + Dispatchers.IO,
+            ) {
                 val queriedItem = item?.data ?: api.userLibraryApi.getItem(itemId).content
                 val base =
                     if (queriedItem.type == BaseItemKind.PLAYLIST) {
@@ -493,7 +501,7 @@ class PlaybackViewModel
                     this@PlaybackViewModel.activityListener = activityListener
 
                     duration.value = source.runTimeTicks?.ticks
-                    stream.value = decision
+                    loading.value = LoadingState.Success
                     currentPlayback.value = playback
                     this@PlaybackViewModel.currentItemPlayback.value = itemPlayback
                     player.setMediaItem(
@@ -708,6 +716,13 @@ class PlaybackViewModel
                     tracks = checkForSupport(tracks),
                 )
         }
+
+        override fun onPlayerError(error: PlaybackException) {
+            Timber.e(error, "Playback error")
+            viewModelScope.launch(Dispatchers.Main + ExceptionHandler()) {
+                loading.value = LoadingState.Error("Error during playback", error)
+            }
+        }
     }
 
 data class CurrentPlayback(

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

@@ -178,6 +178,16 @@ fun SwitchUserContent(
                             style = MaterialTheme.typography.titleMedium,
                             color = MaterialTheme.colorScheme.onSurface,
                         )
+                        when (val s = userState) {
+                            is LoadingState.Error -> {
+                                Text(
+                                    text = s.message ?: s.exception?.localizedMessage ?: "Error",
+                                    color = MaterialTheme.colorScheme.error,
+                                )
+                            }
+
+                            else -> {}
+                        }
                         Row(
                             verticalAlignment = Alignment.CenterVertically,
                             modifier = Modifier.focusGroup(),
@@ -236,16 +246,6 @@ fun SwitchUserContent(
                             Text("Login")
                         }
                     }
-                    when (val s = userState) {
-                        is LoadingState.Error -> {
-                            Text(
-                                text = s.message ?: s.exception?.localizedMessage ?: "Error",
-                                color = MaterialTheme.colorScheme.error,
-                            )
-                        }
-
-                        else -> {}
-                    }
                 }
             }
         }

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

@@ -154,7 +154,7 @@ class SwitchUserViewModel
                     }
                 } catch (ex: Exception) {
                     Timber.e(ex, "Error switching user")
-                    switchUserState.value = LoadingState.Error(exception = ex)
+                    setError(ex)
                 }
             }
         }
@@ -178,7 +178,7 @@ class SwitchUserViewModel
                     }
                 } catch (ex: Exception) {
                     Timber.e(ex, "Error logging in user")
-                    switchUserState.value = LoadingState.Error(ex)
+                    setError(ex)
                 }
             }
         }
@@ -230,7 +230,7 @@ class SwitchUserViewModel
                                 put(server.id, false)
                             }
                     }
-                    switchUserState.value = LoadingState.Error(ex)
+                    setError(ex)
                 }
             }
         }
@@ -328,4 +328,9 @@ class SwitchUserViewModel
                 }
             }
         }
+
+        private suspend fun setError(ex: Exception) =
+            withContext(Dispatchers.Main) {
+                switchUserState.value = LoadingState.Error(ex)
+            }
     }