Fix UI issues, fix big memory leak

Signed-off-by: denis0001-dev <denis0001.dev@ya.ru>

app/desktop/src/main/kotlin/ru/fromchat/desktop/Main.kt

@@ -246,9 +246,11 @@ private object DesktopProtocolRegistration {
 }
 
 fun main(args: Array<String>) {
-    // Separate AWT windows for Popup/Dialog so menus can draw past the app window edge
+    // Do NOT set compose.layers.type=WINDOW.
-    // (closer to Android Popup behavior). Must be set before any Compose UI runs.
+    // On macOS Metal that mode creates a JWindow + MetalRedrawer per Popup/Dialog; native
-    System.setProperty("compose.layers.type", "WINDOW")
+    // IOAccelerator surfaces are retained after dismiss and grew to multi-GB (Activity Monitor
+    // ~7–8 GB) while the Java heap stayed small. Default COMPONENT layers avoid that leak;
+    // context menus already use PopupProperties(clippingEnabled = false).
     if (isMacOs()) {
         // Must be set before AWT Toolkit init (do not call getString / Compose here).
         // Matches Res.string.app_name / app_name_beta.
@@ -302,9 +304,15 @@ fun main(args: Array<String>) {
         val quit = stringResource(Res.string.desktop_quit)
         val connectionStatus by ConnectionStateStore.status.collectAsState()
         var wsLinked by remember { mutableStateOf(WebSocketManager.isConnected) }
+        // ApiClient.token is not a Compose state; poll so menu items update on login/logout.
+        // Only write when the value changes — avoids MenuBar/Tray recomposition churn every tick.
+        var isLoggedIn by remember { mutableStateOf(!ApiClient.token.isNullOrBlank()) }
         LaunchedEffect(Unit) {
             while (true) {
-                wsLinked = WebSocketManager.isConnected
+                val linked = WebSocketManager.isConnected
+                if (wsLinked != linked) wsLinked = linked
+                val loggedIn = !ApiClient.token.isNullOrBlank()
+                if (isLoggedIn != loggedIn) isLoggedIn = loggedIn
                 delay(400.milliseconds)
             }
         }
@@ -422,11 +430,13 @@ fun main(args: Array<String>) {
                 }
                 when {
                     !event.isShiftPressed && event.key == Key.N -> {
+                        if (!isLoggedIn) return@Window false
                         showMainWindow()
                         DesktopMenuCommands.emit(DesktopMenuCommand.NewChat)
                         true
                     }
                     !event.isShiftPressed && event.key == Key.F -> {
+                        if (!isLoggedIn) return@Window false
                         showMainWindow()
                         DesktopMenuCommands.emit(DesktopMenuCommand.SearchConversations)
                         true
@@ -477,6 +487,7 @@ fun main(args: Array<String>) {
 
             if (mac) {
                 FromChatMenuBar(
+                    isLoggedIn = isLoggedIn,
                     onNewChat = {
                         showMainWindow()
                         DesktopMenuCommands.emit(DesktopMenuCommand.NewChat)
@@ -520,6 +531,7 @@ fun main(args: Array<String>) {
 
 @Composable
 private fun FrameWindowScope.FromChatMenuBar(
+    isLoggedIn: Boolean,
     onNewChat: () -> Unit,
     onSearchConversations: () -> Unit,
     onSelectChats: () -> Unit,
@@ -545,6 +557,7 @@ private fun FrameWindowScope.FromChatMenuBar(
 
     MenuBar {
         Menu(file, mnemonic = 'F') {
+            if (isLoggedIn) {
                 Item(
                     newChat,
                     shortcut = KeyShortcut(Key.N, meta = true),
@@ -558,6 +571,7 @@ private fun FrameWindowScope.FromChatMenuBar(
                 )
 
                 Separator()
+            }
 
             Item(
                 quit,

app/shared/src/commonMain/kotlin/ru/fromchat/ui/App.kt

@@ -358,6 +358,7 @@ fun App(
             val widthSizeClass = currentWindowAdaptiveInfo().widthSizeClass
             val isDesktopListDetail = widthSizeClass != WindowWidthSizeClass.COMPACT
             var pendingMainTab by remember { mutableIntStateOf(MAIN_PAGE_CHATS) }
+            var pendingPreAuthSettingsDetailRoute by remember { mutableStateOf<String?>(null) }
 
             // Handle startup/deep-link navigation targets (profile links)
             LaunchedEffect(
@@ -505,9 +506,19 @@ fun App(
                             if (command != DesktopMenuCommand.OpenAbout) return@collect
                             pendingMainTab = MAIN_PAGE_SETTINGS
                             if (isDesktopListDetail) {
+                                if (ApiClient.token.isNullOrBlank()) {
+                                    // Pre-auth: the settings detail NavHost isn't mounted until the root
+                                    // shell is visible, so we defer settings navigation until `currentRoute`
+                                    // becomes `chat`.
+                                    pendingPreAuthSettingsDetailRoute = SettingsRoutes.About
+                                    navController.navigate("chat") {
+                                        launchSingleTop = true
+                                    }
+                                } else {
                                     settingsDetailNavController.navigateReplacingMainDetail(
                                         route = SettingsRoutes.About,
                                     )
+                                }
                             } else {
                                 navController.navigateReplacingMainDetail(
                                     route = SettingsRoutes.About,
@@ -516,6 +527,14 @@ fun App(
                         }
                     }
 
+                    LaunchedEffect(currentRoute, pendingPreAuthSettingsDetailRoute) {
+                        val route = pendingPreAuthSettingsDetailRoute ?: return@LaunchedEffect
+                        if (!isDesktopListDetail) return@LaunchedEffect
+                        if (currentRoute != "chat") return@LaunchedEffect
+                        settingsDetailNavController.navigateReplacingMainDetail(route = route)
+                        pendingPreAuthSettingsDetailRoute = null
+                    }
+
                     ScreenSurface {
                         Box(Modifier.fillMaxSize()) {
                             @Composable

app/shared/src/commonMain/kotlin/ru/fromchat/ui/WelcomeScreen.kt

@@ -2,7 +2,9 @@ package ru.fromchat.ui
 
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxSize
@@ -11,6 +13,8 @@ import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.safeDrawing
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.union
+import androidx.compose.foundation.layout.widthIn
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Info
 import androidx.compose.material.icons.filled.MoreVert
@@ -48,6 +52,9 @@ import ru.fromchat.ui.components.Text
 import ru.fromchat.ui.main.settings.SettingsRoutes
 import ru.fromchat.ui.main.settings.SettingsStepHorizontalPadding
 
+private val AUTH_CONTENT_MAX_WIDTH = 600.dp
+private val AUTH_CONTENT_MAX_HEIGHT = 800.dp
+
 @Composable
 fun WelcomeScreen(
     onGetStarted: () -> Unit,
@@ -60,7 +67,7 @@ fun WelcomeScreen(
     }
 
     Scaffold(
-        contentWindowInsets = WindowInsets.safeDrawing,
+        contentWindowInsets = WindowInsets.safeDrawing.union(WindowInsets.extraStatusBars),
     ) { innerPadding ->
         val navController = LocalNavController.current
         var menuExpanded by remember { mutableStateOf(false) }
@@ -104,6 +111,19 @@ fun WelcomeScreen(
                 }
             }
 
+            BoxWithConstraints(modifier = Modifier.fillMaxSize()) {
+                val constrainWide = maxWidth > AUTH_CONTENT_MAX_WIDTH
+                Box(
+                    modifier =
+                        if (constrainWide) {
+                            Modifier
+                                .align(Alignment.Center)
+                                .widthIn(max = AUTH_CONTENT_MAX_WIDTH)
+                                .heightIn(max = AUTH_CONTENT_MAX_HEIGHT)
+                        } else {
+                            Modifier.fillMaxSize()
+                        },
+                ) {
                     Column(
                         modifier = Modifier
                             .fillMaxSize()
@@ -114,12 +134,12 @@ fun WelcomeScreen(
                         horizontalAlignment = Alignment.CenterHorizontally,
                     ) {
                         AsyncImage(
-                    model = Res.getUri("drawable/logo_square.svg"),
+                            model = Res.getUri("drawable/logo_square.png"),
                             contentDescription = null,
                             modifier = Modifier
                                 .size(112.dp)
                                 .clip(MaterialTheme.shapes.extraLarge),
-                    contentScale = ContentScale.Crop,
+                            contentScale = ContentScale.Fit,
                         )
 
                         Spacer(Modifier.height(24.dp))
@@ -147,4 +167,6 @@ fun WelcomeScreen(
                     }
                 }
             }
+        }
+    }
 }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/auth/AuthScreen.kt

@@ -1,6 +1,11 @@
 package ru.fromchat.ui.auth
 
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxWithConstraints
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.widthIn
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Storage
 import androidx.compose.material3.SnackbarHostState
@@ -13,7 +18,9 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.runtime.snapshotFlow
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
 import com.pr0gramm3r101.utils.crypto.deriveAuthSecret
 import io.ktor.client.call.body
 import io.ktor.client.plugins.ClientRequestException
@@ -78,6 +85,9 @@ internal sealed interface RegisterResult {
 
 private const val AUTH_SERVER_PROBE_TIMEOUT_MS = 5_000L
 
+private val AUTH_CONTENT_MAX_WIDTH = 600.dp
+private val AUTH_CONTENT_MAX_HEIGHT = 800.dp
+
 internal suspend fun probeCurrentServer() = runCatching {
     withTimeout(AUTH_SERVER_PROBE_TIMEOUT_MS.milliseconds) {
         probeServer(Settings.readServerConfig()) is ServerProbeResult.Supported
@@ -433,6 +443,19 @@ fun AuthScreen(
     }
 
     val yandexStep = yandexParams
+    BoxWithConstraints(modifier = Modifier.fillMaxSize()) {
+        val constrainWide = maxWidth > AUTH_CONTENT_MAX_WIDTH
+        Box(
+            modifier =
+                if (constrainWide) {
+                    Modifier
+                        .align(Alignment.Center)
+                        .widthIn(max = AUTH_CONTENT_MAX_WIDTH)
+                        .heightIn(max = AUTH_CONTENT_MAX_HEIGHT)
+                } else {
+                    Modifier.fillMaxSize()
+                },
+        ) {
             ExpressiveStepFlowScaffold(
                 flowState = flowState,
                 pages = listOf(
@@ -476,7 +499,9 @@ fun AuthScreen(
                                     Logger.i(SmartCaptchaLog.TAG, "confirm → YandexId (captcha skipped)")
                                     flowState.pagerState.animateScrollToPage(AuthFlowStep.YandexId.ordinal)
                                 }
-                        captchaRequired && captchaToken.isNullOrBlank() && captchaKey.isNotEmpty() -> {
+                                captchaRequired &&
+                                    captchaToken.isNullOrBlank() &&
+                                    captchaKey.isNotEmpty() -> {
                                     openCaptchaRoute(captchaKey)
                                 }
                                 else -> {
@@ -508,11 +533,16 @@ fun AuthScreen(
                             onContinue = {
                                 val captchaKey = captchaParams?.client_key?.trim().orEmpty()
                                 when {
-                            captchaRequired && captchaToken.isNullOrBlank() && captchaKey.isNotEmpty() -> {
+                                    captchaRequired &&
+                                        captchaToken.isNullOrBlank() &&
+                                        captchaKey.isNotEmpty() -> {
                                         openCaptchaRoute(captchaKey)
                                     }
                                     else -> {
-                                Logger.i(SmartCaptchaLog.TAG, "yandex-placeholder confirm → Profile")
+                                        Logger.i(
+                                            SmartCaptchaLog.TAG,
+                                            "yandex-placeholder confirm → Profile",
+                                        )
                                         flowState.pagerState.animateScrollToPage(AuthFlowStep.Profile.ordinal)
                                     }
                                 }
@@ -537,4 +567,6 @@ fun AuthScreen(
                 snackbarHostState = snackbarHostState,
                 onBackAtFirstPage = wrappedBackToWelcome,
             )
+        }
+    }
 }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/components/ExpressiveStepFlow.kt

@@ -23,7 +23,7 @@ import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.pager.HorizontalPager
@@ -96,6 +96,7 @@ import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
 import ru.fromchat.back
+import ru.fromchat.ui.extraStatusBars
 import ru.fromchat.ui.main.settings.SettingsStepHorizontalPadding
 import kotlin.math.abs
 
@@ -550,6 +551,7 @@ fun ExpressiveStepFlowScaffold(
     fun HazeTopBar(hazeState: HazeState) {
         val topBarHazeStyle = HazeMaterials.thin()
         TopAppBar(
+            windowInsets = WindowInsets.extraStatusBars,
             title = {},
             navigationIcon = {
                 IconButton(onClick = navigateBack) {
@@ -583,7 +585,7 @@ fun ExpressiveStepFlowScaffold(
         Row(
             modifier = Modifier
                 .fillMaxWidth()
-                .statusBarsPadding()
+                .windowInsetsPadding(WindowInsets.extraStatusBars)
                 .padding(horizontal = 4.dp),
             verticalAlignment = Alignment.CenterVertically,
         ) {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/DesktopDetailNavHosts.kt

@@ -12,6 +12,7 @@ import androidx.compose.animation.scaleOut
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.ui.Modifier
@@ -100,8 +101,11 @@ fun DesktopSettingsDetailNavHost(
 
     Box(modifier.fillMaxSize()) {
         if (showPanel) {
+            // Match Profile / ConversationListDetailShell (`background`), not the
+            // default AppPanel `surfaceContainerLowest` (visible mismatch in two-pane).
             AppPanel(
                 Modifier.fillMaxSize(),
+                color = MaterialTheme.colorScheme.background,
                 shape = RoundedCornerShape(24.dp),
             ) {}
         }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/settings/AboutScreen.kt

@@ -60,7 +60,7 @@ fun AboutScreen() {
     val uriHandler = LocalUriHandler.current
 
     Scaffold(
-        containerColor = MaterialTheme.colorScheme.surfaceContainerLowest,
+        containerColor = MaterialTheme.colorScheme.background,
         topBar = {
             SettingsDetailTopBar(
                 title = {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/settings/AppearanceScreen.kt

@@ -67,7 +67,7 @@ fun AppearanceScreen(onBack: () -> Unit) {
     var themeChipIndex by remember { mutableIntStateOf(Settings.theme.ordinal) }
 
     Scaffold(
-        containerColor = MaterialTheme.colorScheme.surfaceContainerLowest,
+        containerColor = MaterialTheme.colorScheme.background,
         topBar = {
             SettingsDetailTopBar(
                 title = { Text(stringResource(Res.string.settings_category_appearance)) },

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/settings/NotificationsScreen.kt

@@ -59,7 +59,7 @@ fun NotificationsScreen(onBack: () -> Unit) {
     val unexpectedErrorText = stringResource(Res.string.error_unexpected)
 
     Scaffold(
-        containerColor = MaterialTheme.colorScheme.surfaceContainerLowest,
+        containerColor = MaterialTheme.colorScheme.background,
         snackbarHost = { FromChatSnackbarHost(hostState = snackbarHostState) },
         topBar = {
             SettingsDetailTopBar(

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/settings/SettingsDetailTopBar.kt

@@ -81,10 +81,10 @@ fun SettingsDetailTopBar(
             }
         }
     }
-    // Must match settings-detail Scaffold.containerColor and AppPanel
+    // Match Profile / shell (`background`), not AppPanel's default
-    // (`surfaceContainerLowest`). Scaffold defaults to `background`, which is a
+    // `surfaceContainerLowest` — that token reads as a separate pane fill in
-    // different token (e.g. light Neutral98 vs Neutral100) — that was the stripe.
+    // two-pane against the list–detail shell.
-    val paneColor = MaterialTheme.colorScheme.surfaceContainerLowest
+    val paneColor = MaterialTheme.colorScheme.background
     if (settingsDetailUseCollapsingTopBar()) {
         MediumTopAppBar(
             title = title,

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/settings/account/AccountScreen.kt

@@ -75,8 +75,8 @@ fun AccountScreen(
     }
 
     Scaffold(
-        // Match AppPanel / SettingsDetailTopBar — default `background` is a darker stripe under the bar.
+        // Match Profile / shell — `surfaceContainerLowest` mismatches the pane behind in two-pane.
-        containerColor = MaterialTheme.colorScheme.surfaceContainerLowest,
+        containerColor = MaterialTheme.colorScheme.background,
         topBar = {
             SettingsDetailTopBar(
                 title = { Text(stringResource(Res.string.settings_account_title)) },

app/shared/src/jvmMain/kotlin/ru/fromchat/ui/auth/captcha/SmartCaptchaWebView.jvm.kt

@@ -16,9 +16,9 @@ import javafx.scene.web.WebEngine
 import javafx.scene.web.WebView
 import netscape.javascript.JSObject
 import ru.fromchat.Logger
-import java.util.concurrent.CountDownLatch
+import ru.fromchat.ui.jvm.ensureJavaFxStarted
-import java.util.concurrent.TimeUnit
+import ru.fromchat.ui.jvm.releaseJavaFxWebView
-import java.util.concurrent.atomic.AtomicBoolean
+import java.util.concurrent.atomic.AtomicReference
 import javax.swing.SwingUtilities
 
 private const val SMARTCAPTCHA_WEBVIEW_BASE = "https://smartcaptcha.cloud.yandex.ru/webview"
@@ -58,6 +58,8 @@ actual fun SmartCaptchaWebView(
             deliverError = { message -> onErrorState.value(message) },
         )
     }
+    val panelRef = remember { AtomicReference<JFXPanel?>(null) }
+    val engineRef = remember { AtomicReference<WebEngine?>(null) }
 
     DisposableEffect(instanceId) {
         Logger.i(
@@ -66,15 +68,17 @@ actual fun SmartCaptchaWebView(
                 "sitekey=${SmartCaptchaLog.redactKey(sitekey)} lang=$lang " +
                 "url=${SmartCaptchaLog.shortUrl(captchaUrl)}",
         )
-        ensureJavaFxStarted()
+        ensureJavaFxStarted(SmartCaptchaLog.TAG)
         onDispose {
             Logger.i(SmartCaptchaLog.TAG, "JavaFX WebView compose dispose id=$instanceId")
+            releaseJavaFxWebView(panelRef, engineRef)
         }
     }
 
     SwingPanel(
         factory = {
             JFXPanel().also { panel ->
+                panelRef.set(panel)
                 panel.background = java.awt.Color(
                     surfaceContainer.red,
                     surfaceContainer.green,
@@ -86,6 +90,7 @@ actual fun SmartCaptchaWebView(
                         val webView = WebView()
                         val engine = webView.engine
                         engine.isJavaScriptEnabled = true
+                        engineRef.set(engine)
                         engine.loadWorker.stateProperty().addListener { _, _, newState ->
                             when (newState) {
                                 Worker.State.SUCCEEDED -> {
@@ -169,24 +174,3 @@ private fun injectNativeClient(engine: WebEngine, bridge: SmartCaptchaJsBridge)
         Logger.w(SmartCaptchaLog.TAG, "inject NativeClient failed: ${it.message}", it)
     }
 }
-
-private val javaFxStarted = AtomicBoolean(false)
-
-private fun ensureJavaFxStarted() {
-    if (javaFxStarted.get()) return
-    synchronized(javaFxStarted) {
-        if (javaFxStarted.get()) return
-        runCatching {
-            Platform.setImplicitExit(false)
-            val latch = CountDownLatch(1)
-            Platform.startup { latch.countDown() }
-            if (!latch.await(5, TimeUnit.SECONDS)) {
-                Logger.w(SmartCaptchaLog.TAG, "JavaFX Platform.startup timed out")
-            }
-        }.onFailure { error ->
-            // Toolkit may already be running via JFXPanel.
-            Logger.d(SmartCaptchaLog.TAG, "JavaFX startup: ${error.message}")
-        }
-        javaFxStarted.set(true)
-    }
-}

app/shared/src/jvmMain/kotlin/ru/fromchat/ui/calls/CallMediaLayer.jvm.kt

@@ -26,9 +26,8 @@ import netscape.javascript.JSObject
 import ru.fromchat.Logger
 import ru.fromchat.api.calls.CallStore
 import ru.fromchat.api.calls.LiveKitConnectSession
-import java.util.concurrent.CountDownLatch
+import ru.fromchat.ui.jvm.ensureJavaFxStarted
-import java.util.concurrent.TimeUnit
+import ru.fromchat.ui.jvm.releaseJavaFxWebView
-import java.util.concurrent.atomic.AtomicBoolean
 import java.util.concurrent.atomic.AtomicReference
 import javax.swing.SwingUtilities
 
@@ -73,6 +72,7 @@ private fun LiveKitJavaFxCall(
 ) {
     var micOn by remember(session.roomName) { mutableStateOf(true) }
     var camOn by remember(session.roomName) { mutableStateOf(true) }
+    val panelRef = remember { AtomicReference<JFXPanel?>(null) }
     val engineRef = remember { AtomicReference<WebEngine?>(null) }
     val sessionState = rememberUpdatedState(session)
     val surface = MaterialTheme.colorScheme.surfaceContainerLowest
@@ -89,7 +89,7 @@ private fun LiveKitJavaFxCall(
     }
 
     DisposableEffect(session.roomName) {
-        ensureJavaFxStarted()
+        ensureJavaFxStarted(TAG)
         onDispose {
             val engine = engineRef.get()
             if (engine != null) {
@@ -97,7 +97,7 @@ private fun LiveKitJavaFxCall(
                     runCatching { engine.executeScript(LiveKitCallWebPage.disconnectScript()) }
                 }
             }
-            engineRef.set(null)
+            releaseJavaFxWebView(panelRef, engineRef)
         }
     }
 
@@ -105,6 +105,7 @@ private fun LiveKitJavaFxCall(
         SwingPanel(
             factory = {
                 JFXPanel().also { panel ->
+                    panelRef.set(panel)
                     panel.background = java.awt.Color(
                         surface.red,
                         surface.green,
@@ -224,23 +225,3 @@ private fun injectNativeBridge(engine: WebEngine, bridge: LiveKitCallJsBridge) {
         Logger.w(TAG, "inject FromChatNative failed: ${it.message}", it)
     }
 }
-
-private val javaFxStarted = AtomicBoolean(false)
-
-private fun ensureJavaFxStarted() {
-    if (javaFxStarted.get()) return
-    synchronized(javaFxStarted) {
-        if (javaFxStarted.get()) return
-        runCatching {
-            Platform.setImplicitExit(false)
-            val latch = CountDownLatch(1)
-            Platform.startup { latch.countDown() }
-            if (!latch.await(5, TimeUnit.SECONDS)) {
-                Logger.w(TAG, "JavaFX Platform.startup timed out")
-            }
-        }.onFailure { error ->
-            Logger.d(TAG, "JavaFX startup: ${error.message}")
-        }
-        javaFxStarted.set(true)
-    }
-}

app/shared/src/jvmMain/kotlin/ru/fromchat/ui/jvm/JavaFxWebViewLifecycle.kt

@@ -0,0 +1,57 @@
+package ru.fromchat.ui.jvm
+
+import javafx.application.Platform
+import javafx.embed.swing.JFXPanel
+import javafx.scene.web.WebEngine
+import ru.fromchat.Logger
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.atomic.AtomicBoolean
+import java.util.concurrent.atomic.AtomicReference
+
+private val javaFxStarted = AtomicBoolean(false)
+
+/** Starts the JavaFX toolkit once (safe if already running via [JFXPanel]). */
+fun ensureJavaFxStarted(logTag: String) {
+    if (javaFxStarted.get()) return
+    synchronized(javaFxStarted) {
+        if (javaFxStarted.get()) return
+        runCatching {
+            Platform.setImplicitExit(false)
+            val latch = CountDownLatch(1)
+            Platform.startup { latch.countDown() }
+            if (!latch.await(5, TimeUnit.SECONDS)) {
+                Logger.w(logTag, "JavaFX Platform.startup timed out")
+            }
+        }.onFailure { error ->
+            // Toolkit may already be running via JFXPanel.
+            Logger.d(logTag, "JavaFX startup: ${error.message}")
+        }
+        javaFxStarted.set(true)
+    }
+}
+
+/**
+ * Tears down an OpenJFX [WebView] hosted in a Compose [JFXPanel].
+ *
+ * Without this, [WebEngine]'s pulse timer and WebKit textures stay alive after the Swing panel
+ * leaves composition — observed as multi-GB macOS IOAccelerator (graphics) growth while the
+ * Java heap stays small.
+ */
+fun releaseJavaFxWebView(
+    panelRef: AtomicReference<JFXPanel?>,
+    engineRef: AtomicReference<WebEngine?>,
+) {
+    val panel = panelRef.getAndSet(null)
+    val engine = engineRef.getAndSet(null)
+    if (panel == null && engine == null) return
+    Platform.runLater {
+        runCatching {
+            engine?.loadWorker?.cancel()
+            engine?.load(null)
+            panel?.scene = null
+        }.onFailure { error ->
+            Logger.w("JavaFxWebView", "release failed: ${error.message}")
+        }
+    }
+}