Open Android stream controls from own multiview tile

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/StreamGridScreen.kt

@@ -50,7 +50,8 @@ private class GridStream(val source: StreamSource) {
  * Пустой каталог оставляет экран открытым; временный сбой каталога сохраняет действующие readers. */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-internal fun StreamGridScreen(group: Long, title: String, sources: List<StreamSource>, unavailable: Boolean, onClose: () -> Unit) {
+internal fun StreamGridScreen(group: Long, title: String, sources: List<StreamSource>, unavailable: Boolean,
+                              ownPreviewVisible: Boolean, onOwnStream: () -> Unit, onClose: () -> Unit) {
     val tiles = remember(group) { mutableStateListOf<GridStream>() }
     var expanded by remember(group) { mutableStateOf<GridStream?>(null) }
     val focused = expanded?.takeIf { it in tiles }
@@ -106,7 +107,7 @@ internal fun StreamGridScreen(group: Long, title: String, sources: List<StreamSo
             delay(250)
         }
     }
-    Scaffold(topBar = {
+    Scaffold(modifier = if (ownPreviewVisible) Modifier else Modifier.clearAndSetSemantics {}, topBar = {
         if (focused == null)
             TopAppBar(title = { Text(stringResource(R.string.stream_all_title, title), maxLines = 1, overflow = TextOverflow.Ellipsis) },
                 navigationIcon = { IconButton(onClick = onClose) { Icon(Icons.Filled.Close, stringResource(R.string.stream_close_view)) } })
@@ -124,8 +125,10 @@ internal fun StreamGridScreen(group: Long, title: String, sources: List<StreamSo
                 }
                 Layout(content = {
                     for (tile in tiles) key(tile.source.id, tile.source.epoch) {
-                        StreamGridTile(group, tile, visible, tile === focused, focused != null && tile !== focused) {
-                            expanded = if (tile === focused) null else tile
+                        StreamGridTile(group, tile, visible && (!tile.source.self || ownPreviewVisible),
+                            tile === focused, focused != null && tile !== focused) {
+                            if (tile.source.self) onOwnStream()
+                            else expanded = if (tile === focused) null else tile
                         }
                     }
                 }, modifier = Modifier.fillMaxSize()) { children, constraints ->
@@ -179,7 +182,8 @@ private fun StreamGridTile(group: Long, tile: GridStream, visible: Boolean, expa
             }
         }
         Box(Modifier.matchParentSize().clickable(interactionSource = remember { MutableInteractionSource() }, indication = null,
-            role = Role.Button, onClickLabel = stringResource(if (expanded) R.string.collapse else R.string.expand), onClick = onClick)
+            role = Role.Button, onClickLabel = stringResource(if (tile.source.self) R.string.stream_manage
+                else if (expanded) R.string.collapse else R.string.expand), onClick = onClick)
             .semantics { contentDescription = tile.source.displayName })
     }
 }

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/StreamScreen.kt

@@ -11,6 +11,7 @@ import android.os.Handler
 import android.os.Looper
 import android.os.SystemClock
 import android.view.TextureView
+import androidx.activity.compose.BackHandler
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.layout.*
@@ -27,6 +28,7 @@ import androidx.compose.material.icons.filled.ScreenRotation
 import androidx.compose.material.icons.filled.Stop
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
+import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.geometry.CornerRadius
@@ -75,10 +77,24 @@ import kotlin.math.roundToInt
 fun StreamScreen(channelId: String, channelName: String, sources: List<StreamSource>, selected: StreamSource?,
                  sourcesFailed: Boolean, onSelect: (StreamSource?) -> Unit, viewAll: Boolean = false,
                  onBack: () -> Unit) {
-    val context = LocalContext.current
     val group = remember(channelId) { channelId.toULongOrNull()?.toLong() ?: 0L }
     if (viewAll) {
-        StreamGridScreen(group, channelName, sources, sourcesFailed) { onSelect(null); onBack() }
+        var manageOwn by rememberSaveable(group) { mutableStateOf(false) }
+        LaunchedEffect(manageOwn) {
+            LogManager.addLog("INFO", "stream", "multiview controls group=$group open=$manageOwn " +
+                "publisher=${StreamController.state.value?.id} readersPreserved=true")
+        }
+        Box(Modifier.fillMaxSize()) {
+            StreamGridScreen(group, channelName, sources, sourcesFailed, ownPreviewVisible = !manageOwn, onOwnStream = {
+                val publisher = StreamController.state.value
+                if (publisher?.ongoing == true && publisher.group == group) manageOwn = true
+                else LogManager.addLog("WARN", "stream", "multiview controls stale group=$group publisher=${publisher?.id} phase=${publisher?.phase}")
+            }, onClose = { onSelect(null); onBack() })
+            if (manageOwn) {
+                BackHandler { manageOwn = false }
+                StreamPublishScreen(group, channelName) { manageOwn = false }
+            }
+        }
         return
     }
     if (selected != null && !selected.self) {
@@ -87,6 +103,14 @@ fun StreamScreen(channelId: String, channelName: String, sources: List<StreamSou
         }
         return
     }
+    StreamPublishScreen(group, channelName, onBack)
+}
+
+/** Управление публикацией используется отдельно и поверх сетки, не меняя выбор просмотра. */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun StreamPublishScreen(group: Long, channelName: String, onBack: () -> Unit) {
+    val context = LocalContext.current
     val displayDegrees = StreamDisplayDegrees()
     val state by StreamController.state.collectAsState()
     val local = state?.takeIf { it.group == group }