New TopBar

app/src/main/java/ru/risdeveau/pixeldragon/ui/activity/MainActivity.kt

@@ -5,41 +5,70 @@
 
 package ru.risdeveau.pixeldragon.ui.activity
 
+import android.annotation.SuppressLint
 import android.os.Bundle
 import android.util.Log
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.CenterAlignedTopAppBar
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBarDefaults.topAppBarColors
+import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+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.draw.clip
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavHostController
 import androidx.navigation.NavType
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
+import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navArgument
 import de.connect2x.trixnity.client.CryptoDriverModule
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 import de.connect2x.trixnity.client.MatrixClient
 import de.connect2x.trixnity.client.create
 import de.connect2x.trixnity.client.cryptodriver.vodozemac.vodozemac
+import de.connect2x.trixnity.client.flattenValues
+import de.connect2x.trixnity.client.room
+import de.connect2x.trixnity.client.store.type
 import de.connect2x.trixnity.clientserverapi.client.SyncState
+import de.connect2x.trixnity.core.model.events.m.room.CreateEventContent
+import io.github.rabehx.iconsax.Iconsax
+import io.github.rabehx.iconsax.automirrored.outline.ArrowLeft2
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
 import ru.risdeveau.pixeldragon.R
 import ru.risdeveau.pixeldragon.client
+import ru.risdeveau.pixeldragon.ui.item.MXCImage
 import ru.risdeveau.pixeldragon.ui.layout.Room
 import ru.risdeveau.pixeldragon.ui.layout.RoomList
 import ru.risdeveau.pixeldragon.ui.theme.PixelDragonTheme
@@ -47,11 +76,10 @@ import ru.risdeveau.pixeldragon.util.getMediaStore
 import ru.risdeveau.pixeldragon.util.getRoomStore
 import splitties.activities.start
 import splitties.init.appCtx
-import splitties.resources.str
+import de.connect2x.trixnity.client.store.Room as TrixnityRoom
 
 
 class MainActivity : ComponentActivity() {
-    @OptIn(ExperimentalMaterial3Api::class)
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -59,34 +87,28 @@ class MainActivity : ComponentActivity() {
         setContent {
             PixelDragonTheme {
                 var isClientReady by remember { mutableStateOf(false) }
-                val syncState by remember { mutableStateOf(SyncState.STOPPED) }
 
-                if (!isClientReady) {
-                    CircularProgressIndicator()
+                if (!isClientReady || client == null) {
+                    Box(
+                        modifier = Modifier.fillMaxSize(),
+                        contentAlignment = Alignment.Center,
+                    ) {
+                        CircularProgressIndicator()
+                    }
                 } else {
+                    val navController = rememberNavController()
+                    val syncState by client!!.api.sync.currentSyncState
+                        .collectAsState(initial = SyncState.STOPPED)
+
                     Scaffold(
                         modifier = Modifier.fillMaxSize(),
                         topBar = {
-                            CenterAlignedTopAppBar(
-                                colors = topAppBarColors(
-                                    containerColor = MaterialTheme.colorScheme.primaryContainer,
-                                    titleContentColor = MaterialTheme.colorScheme.primary,
-                                ),
-                                title = {
-                                    when (syncState) {
-                                        SyncState.STARTED -> Text("Syncing...")
-                                        SyncState.INITIAL_SYNC -> Text("Initial sync...")
-                                        SyncState.STOPPED,
-                                        SyncState.RUNNING -> Text(str(R.string.app_name))
-                                        SyncState.TIMEOUT -> Text("No network connection")
-                                        SyncState.ERROR -> Text("Error syncing")
-                                    }
-                                }
+                            PixelDragonTopBar(
+                                navController = navController,
+                                syncState = syncState,
                             )
                         },
                     ) { innerPadding ->
-                        val navController = rememberNavController()
-
                         NavHost(navController = navController, startDestination = "rooms") {
                             composable("rooms") {
                                 RoomList(Modifier.padding(innerPadding), navController)
@@ -102,7 +124,7 @@ class MainActivity : ComponentActivity() {
                             composable(
                                 "space/{rid}",
                                 arguments = listOf(navArgument("rid") { type = NavType.StringType })
-                            ) { navBackStackEntry ->
+                            ) {
                                 Text(
                                     modifier = Modifier.padding(innerPadding),
                                     text = "Not implemented"
@@ -142,3 +164,172 @@ class MainActivity : ComponentActivity() {
         }
     }
 }
+
+@SuppressLint("FlowOperatorInvokedInComposition")
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun PixelDragonTopBar(
+    navController: NavHostController,
+    syncState: SyncState,
+) {
+    val backStackEntry by navController.currentBackStackEntryAsState()
+    val route = backStackEntry?.destination?.route
+    val rid = backStackEntry?.arguments?.getString("rid")
+    val isRoomLikeScreen = route == "room/{rid}" || route == "space/{rid}"
+
+    val roomsFlow = remember(client) {
+        client!!.room.getAll().flattenValues().map { it.toList() }
+    }
+    val rooms by roomsFlow.collectAsState(initial = emptyList())
+
+    val currentRoom = remember(isRoomLikeScreen, rid, rooms) {
+        if (isRoomLikeScreen && rid != null) {
+            rooms.firstOrNull { it.roomId.toString() == rid }
+        } else {
+            null
+        }
+    }
+
+    if (isRoomLikeScreen) {
+        RoomTopBar(
+            room = currentRoom,
+            fallbackTitle = rid ?: stringResource(R.string.app_name),
+            onBack = { navController.popBackStack() },
+        )
+    } else {
+        HomeTopBar(syncState = syncState)
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun HomeTopBar(syncState: SyncState) {
+    CenterAlignedTopAppBar(
+        colors = topAppBarColors(
+            containerColor = MaterialTheme.colorScheme.primaryContainer,
+            titleContentColor = MaterialTheme.colorScheme.primary,
+        ),
+        title = {
+            Text(syncState.toStatusTitle() ?: stringResource(R.string.app_name))
+        },
+    )
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun RoomTopBar(
+    room: TrixnityRoom?,
+    fallbackTitle: String,
+    onBack: () -> Unit,
+) {
+    CenterAlignedTopAppBar(
+        colors = topAppBarColors(
+            containerColor = MaterialTheme.colorScheme.surface.copy(.5f),
+            titleContentColor = MaterialTheme.colorScheme.onSurface,
+            navigationIconContentColor = MaterialTheme.colorScheme.primary,
+        ),
+        navigationIcon = {
+            IconButton(onClick = onBack) {
+                Icon(
+                    Iconsax.AutoMirrored.Outline.ArrowLeft2,
+                    "To home",
+                )
+            }
+        },
+        title = {
+            if (room != null) {
+                RoomTopBarTitle(room)
+            } else {
+                Text(
+                    text = fallbackTitle,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    style = MaterialTheme.typography.titleMedium,
+                )
+            }
+        },
+    )
+}
+
+@Composable
+private fun RoomTopBarTitle(room: TrixnityRoom) {
+    val title = remember(room) { room.displayName() }
+    val isSpace = room.type == CreateEventContent.RoomType.Space
+    val avatarShape = if (isSpace) RoundedCornerShape(8.dp) else CircleShape
+
+    Row(
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        if (room.avatarUrl != null) {
+            MXCImage(
+                mxcUrl = room.avatarUrl!!,
+                modifier = Modifier
+                    .size(36.dp)
+                    .clip(avatarShape),
+                contentScale = ContentScale.Crop,
+                contentDescription = title,
+                showProgress = false,
+            )
+        } else {
+            RoomAvatarPlaceholder(
+                title = title,
+                modifier = Modifier.size(36.dp),
+                isSpace = isSpace,
+            )
+        }
+
+        Spacer(Modifier.width(10.dp))
+
+        Text(
+            text = title,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            style = MaterialTheme.typography.titleMedium,
+        )
+    }
+}
+
+@Composable
+private fun RoomAvatarPlaceholder(
+    title: String,
+    modifier: Modifier = Modifier,
+    isSpace: Boolean = false,
+) {
+    val shape = if (isSpace) RoundedCornerShape(8.dp) else CircleShape
+    val initial = title
+        .trim()
+        .firstOrNull()
+        ?.uppercaseChar()
+        ?.toString()
+        ?: "?"
+
+    Box(
+        modifier = modifier
+            .clip(shape)
+            .background(MaterialTheme.colorScheme.secondaryContainer),
+        contentAlignment = Alignment.Center,
+    ) {
+        Text(
+            text = initial,
+            color = MaterialTheme.colorScheme.onSecondaryContainer,
+            style = MaterialTheme.typography.titleMedium,
+        )
+    }
+}
+
+private fun TrixnityRoom.displayName(): String {
+    return name?.explicitName
+        ?: name?.heroes?.firstNotNullOfOrNull { it.localpart }
+        ?: roomId.toString()
+}
+
+private fun SyncState.toStatusTitle(): String? {
+    return when (this) {
+        SyncState.INITIAL_SYNC -> "Initial sync..."
+        SyncState.STARTED -> "Syncing..."
+        SyncState.TIMEOUT -> "No network connection"
+        SyncState.ERROR -> "Error syncing"
+        SyncState.RUNNING,
+        SyncState.STOPPED -> null
+    }
+}