Fix interactive episode navigation buttons

app-tv/src/main/java/hu/bbara/purefin/tv/TvActivity.kt

@@ -34,6 +34,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import hu.bbara.purefin.common.ui.PurefinWaitingScreen
 import hu.bbara.purefin.core.data.client.JellyfinApiClient
 import hu.bbara.purefin.core.data.client.JellyfinAuthInterceptor
+import hu.bbara.purefin.core.data.navigation.LocalNavigationBackStack
 import hu.bbara.purefin.core.data.navigation.LocalNavigationManager
 import hu.bbara.purefin.core.data.navigation.NavigationCommand
 import hu.bbara.purefin.core.data.navigation.NavigationManager
@@ -164,7 +165,10 @@ class TvActivity : ComponentActivity() {
                 }
             }
 
-            CompositionLocalProvider(LocalNavigationManager provides navigationManager) {
+            CompositionLocalProvider(
+                LocalNavigationManager provides navigationManager,
+                LocalNavigationBackStack provides backStack.toList()
+            ) {
                 NavDisplay(
                     backStack = backStack,
                     onBack = { navigationManager.pop() },

app/src/main/java/hu/bbara/purefin/PurefinActivity.kt

@@ -34,6 +34,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import hu.bbara.purefin.common.ui.PurefinWaitingScreen
 import hu.bbara.purefin.core.data.client.JellyfinApiClient
 import hu.bbara.purefin.core.data.client.JellyfinAuthInterceptor
+import hu.bbara.purefin.core.data.navigation.LocalNavigationBackStack
 import hu.bbara.purefin.core.data.navigation.LocalNavigationManager
 import hu.bbara.purefin.core.data.navigation.NavigationCommand
 import hu.bbara.purefin.core.data.navigation.NavigationManager
@@ -165,7 +166,10 @@ class PurefinActivity : ComponentActivity() {
                 }
             }
 
-            CompositionLocalProvider(LocalNavigationManager provides navigationManager) {
+            CompositionLocalProvider(
+                LocalNavigationManager provides navigationManager,
+                LocalNavigationBackStack provides backStack.toList()
+            ) {
                 NavDisplay(
                     backStack = backStack,
                     onBack = { navigationManager.pop() },

app/src/main/java/hu/bbara/purefin/app/content/episode/EpisodeComponents.kt

@@ -16,6 +16,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.sizeIn
 import androidx.compose.foundation.layout.statusBarsPadding
 import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Add
@@ -49,9 +50,23 @@ import hu.bbara.purefin.core.model.Episode
 import hu.bbara.purefin.feature.download.DownloadState
 import hu.bbara.purefin.player.PlayerActivity
 
+internal sealed interface EpisodeTopBarShortcut {
+    val label: String
+    val onClick: () -> Unit
+
+    data class Series(override val onClick: () -> Unit) : EpisodeTopBarShortcut {
+        override val label: String = "Series"
+    }
+
+    data class Home(override val onClick: () -> Unit) : EpisodeTopBarShortcut {
+        override val label: String = "Home"
+    }
+}
+
 @Composable
 internal fun EpisodeTopBar(
     seriesTitle: String?,
+    shortcut: EpisodeTopBarShortcut?,
     onBack: () -> Unit,
     onSeriesClick: () -> Unit,
     modifier: Modifier = Modifier
@@ -70,29 +85,50 @@ internal fun EpisodeTopBar(
             contentDescription = "Back",
             onClick = onBack
         )
-        if (!seriesTitle.isNullOrBlank()) {
+        when {
+            shortcut != null -> {
+                Box(
+                    modifier = Modifier
+                        .height(52.dp)
+                        .clickable(onClick = shortcut.onClick),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Text(
+                        text = shortcut.label,
+                        color = scheme.onBackground,
+                        fontSize = 16.sp,
+                        fontWeight = FontWeight.SemiBold,
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis,
+                        modifier = Modifier
+                            .clip(CircleShape)
+                            .background(scheme.background.copy(alpha = 0.65f))
+                            .padding(horizontal = 16.dp, vertical = 10.dp)
+                    )
+                }
+            }
+            !seriesTitle.isNullOrBlank() -> {
             Box(
                 modifier = Modifier
-                    .weight(1f)
-                    .padding(horizontal = 12.dp),
+                    .height(52.dp)
+                    .clickable(onClick = onSeriesClick),
                 contentAlignment = Alignment.Center
             ) {
                 Text(
                     text = seriesTitle,
                     color = scheme.onBackground,
-                    fontSize = 14.sp,
+                    fontSize = 16.sp,
                     fontWeight = FontWeight.SemiBold,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis,
                     modifier = Modifier
-                        .clip(RoundedCornerShape(999.dp))
+                        .clip(CircleShape)
                         .background(scheme.background.copy(alpha = 0.65f))
-                        .clickable(onClick = onSeriesClick)
                         .padding(horizontal = 16.dp, vertical = 10.dp)
-                )
+                    )
+                }
             }
-        } else {
-            Spacer(modifier = Modifier.weight(1f))
+            else -> Spacer(modifier = Modifier.weight(1f))
         }
         Row(horizontalArrangement = Arrangement.spacedBy(12.dp)) {
             GhostIconButton(icon = Icons.Outlined.Cast, contentDescription = "Cast", onClick = { })

app/src/main/java/hu/bbara/purefin/app/content/episode/EpisodeScreen.kt

@@ -15,12 +15,16 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import hu.bbara.purefin.common.ui.PurefinWaitingScreen
 import hu.bbara.purefin.common.ui.components.MediaHero
 import hu.bbara.purefin.core.data.navigation.EpisodeDto
+import hu.bbara.purefin.core.data.navigation.LocalNavigationBackStack
+import hu.bbara.purefin.core.data.navigation.LocalNavigationManager
+import hu.bbara.purefin.core.data.navigation.Route
 import hu.bbara.purefin.core.model.Episode
 import hu.bbara.purefin.feature.download.DownloadState
 import hu.bbara.purefin.feature.shared.content.episode.EpisodeScreenViewModel
@@ -31,6 +35,9 @@ fun EpisodeScreen(
     viewModel: EpisodeScreenViewModel = hiltViewModel(),
     modifier: Modifier = Modifier
 ) {
+    val navigationManager = LocalNavigationManager.current
+    val backStack = LocalNavigationBackStack.current
+    val previousRoute = remember(backStack) { backStack.getOrNull(backStack.lastIndex - 1) }
 
     LaunchedEffect(episode) {
         viewModel.selectEpisode(
@@ -69,6 +76,15 @@ fun EpisodeScreen(
     EpisodeScreenInternal(
         episode = episode.value!!,
         seriesTitle = seriesTitle.value,
+        topBarShortcut = remember(previousRoute) {
+            when (previousRoute) {
+                is Route.SeriesRoute -> EpisodeTopBarShortcut.Home {
+                    navigationManager.replaceAll(Route.Home)
+                }
+                Route.Home -> EpisodeTopBarShortcut.Series(viewModel::onSeriesClick)
+                else -> null
+            }
+        },
         downloadState = downloadState.value,
         onBack = viewModel::onBack,
         onSeriesClick = viewModel::onSeriesClick,
@@ -81,6 +97,7 @@ fun EpisodeScreen(
 private fun EpisodeScreenInternal(
     episode: Episode,
     seriesTitle: String?,
+    topBarShortcut: EpisodeTopBarShortcut?,
     downloadState: DownloadState,
     onBack: () -> Unit,
     onSeriesClick: () -> Unit,
@@ -94,6 +111,7 @@ private fun EpisodeScreenInternal(
         topBar = {
             EpisodeTopBar(
                 seriesTitle = seriesTitle,
+                shortcut = topBarShortcut,
                 onBack = onBack,
                 onSeriesClick = onSeriesClick,
                 modifier = Modifier
@@ -123,3 +141,5 @@ private fun EpisodeScreenInternal(
         }
     }
 }
+
+

core/data/src/main/java/hu/bbara/purefin/core/data/navigation/NavigationManager.kt

@@ -1,6 +1,7 @@
 package hu.bbara.purefin.core.data.navigation
 
 import androidx.compose.runtime.ProvidableCompositionLocal
+import androidx.compose.runtime.compositionLocalOf
 import androidx.compose.runtime.staticCompositionLocalOf
 import kotlinx.coroutines.channels.BufferOverflow
 import kotlinx.coroutines.flow.MutableSharedFlow
@@ -43,3 +44,5 @@ class DefaultNavigationManager : NavigationManager {
 
 val LocalNavigationManager: ProvidableCompositionLocal<NavigationManager> =
     staticCompositionLocalOf { error("NavigationManager not provided") }
+
+val LocalNavigationBackStack = compositionLocalOf<List<Route>> { emptyList() }

feature/shared/src/main/java/hu/bbara/purefin/feature/shared/content/episode/EpisodeScreenViewModel.kt

@@ -5,6 +5,8 @@ import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import hu.bbara.purefin.core.data.AppContentRepository
 import hu.bbara.purefin.core.data.navigation.NavigationManager
+import hu.bbara.purefin.core.data.navigation.Route
+import hu.bbara.purefin.core.data.navigation.SeriesDto
 import hu.bbara.purefin.core.model.Episode
 import hu.bbara.purefin.feature.download.DownloadState
 import hu.bbara.purefin.feature.download.MediaDownloadManager
@@ -50,7 +52,8 @@ class EpisodeScreenViewModel @Inject constructor(
     }
 
     fun onSeriesClick() {
-        navigationManager.pop()
+        val seriesId = _seriesId.value ?: return
+        navigationManager.navigate(Route.SeriesRoute(SeriesDto(id = seriesId)))
     }
 
     fun selectEpisode(seriesId: UUID, seasonId: UUID, episodeId: UUID) {