More desktop and mobile fixes

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

.idea/artifacts/shared.xml

@@ -1,6 +1,8 @@
 <component name="ArtifactManager">
   <artifact type="jar" name="shared">
     <output-path>$PROJECT_DIR$/utils/shared/build/libs</output-path>
-    <root id="archive" name="shared.jar" />
+    <root id="archive" name="shared.jar">
+      <element id="module-output" name="FromChat.utils.shared.androidMain" />
+    </root>
   </artifact>
 </component>

.idea/artifacts/shared_jvm.xml

@@ -1,6 +1,8 @@
 <component name="ArtifactManager">
   <artifact type="jar" name="shared-jvm">
     <output-path>$PROJECT_DIR$/utils/shared/build/libs</output-path>
-    <root id="archive" name="shared-jvm.jar" />
+    <root id="archive" name="shared-jvm.jar">
+      <element id="module-output" name="FromChat.utils.shared.jvmMain" />
+    </root>
   </artifact>
 </component>

.idea/gradle.xml

@@ -6,7 +6,6 @@
       <GradleProjectSettings>
         <option name="testRunner" value="CHOOSE_PER_TEST" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="jbr-21" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

.idea/misc.xml

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="CidrRootsConfiguration">
+    <excludeRoots>
+      <file path="$PROJECT_DIR$/app/android/keys" />
+    </excludeRoots>
+  </component>
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />

README.en.md

@@ -19,7 +19,7 @@ FromChat is a 100% free and open-source messenger. This repository is the cross-
 ## 📊 Client Comparison
 
 | Feature                     | Android | Desktop                  | Web | iOS               |
-| --- | --- | --- | --- | --- |
+|-----------------------------|---------|--------------------------|-----|-------------------|
 | **Messaging and profiles**  | ✅       | ✅                        | ✅   | ✅                 |
 | **Voice/video calls**       | ✅       | ✅                        | ✅   | ✅                 |
 | **Screen sharing**          | ✅       | ❌                        | ✅   | ❌                 |
@@ -70,22 +70,25 @@ Desktop replaces the former Electron client in the Web repo. Run with `./gradlew
 
    mkdir -p app/android/keys
 
+   # Quote passwords: characters like & * ? ! break unquoted shell args.
    keytool -genkey -v -keystore app/android/keys/debug.jks \
      -keyalg RSA -keysize 2048 -validity 10000 \
-     -alias key0 -storepass $DEBUG_STORE_PASS -keypass $DEBUG_KEY_PASS \
+     -alias key0 -storepass "$DEBUG_STORE_PASS" -keypass "$DEBUG_KEY_PASS" \
      -dname "CN=Debug, O=FromChat, C=RU"
 
    keytool -genkey -v -keystore app/android/keys/release.jks \
      -keyalg RSA -keysize 2048 -validity 10000 \
-     -alias key0 -storepass $RELEASE_STORE_PASS -keypass $RELEASE_KEY_PASS \
+     -alias key0 -storepass "$RELEASE_STORE_PASS" -keypass "$RELEASE_KEY_PASS" \
      -dname "CN=Release, O=FromChat, C=RU"
 
-   cat > app/android/keystore.properties << EOF
+   # Path must be app/android/keys/keystore.properties (matches build.gradle.kts).
-   releaseStorePassword=$RELEASE_STORE_PASS
+   # Outer "…" / '…' around values are optional; Gradle strips them.
-   releaseKeyPassword=$RELEASE_KEY_PASS
+   cat > app/android/keys/keystore.properties << EOF
-   debugStorePassword=$DEBUG_STORE_PASS
+releaseStorePassword=$RELEASE_STORE_PASS
-   debugKeyPassword=$DEBUG_KEY_PASS
+releaseKeyPassword=$RELEASE_KEY_PASS
-   EOF
+debugStorePassword=$DEBUG_STORE_PASS
+debugKeyPassword=$DEBUG_KEY_PASS
+EOF
    ```
 
 3. **Open in Android Studio:** `File → Open` → repo root. Gradle syncs dependencies automatically.

README.md

@@ -19,7 +19,7 @@ FromChat — 100% бесплатный и открытый мессенджер.
 ## 📊 Сравнение клиентов
 
 | Возможность                        | Android | Desktop                  | Web | iOS                 |
-| --- | --- | --- | --- | --- |
+|------------------------------------|---------|--------------------------|-----|---------------------|
 | **Обмен сообщениями и профили**    | ✅       | ✅                        | ✅   | ✅                   |
 | **Голосовые/видеозвонки**          | ✅       | ✅                        | ✅   | ✅                   |
 | **Демонстрация экрана**            | ✅       | ❌                        | ✅   | ❌                   |
@@ -63,24 +63,24 @@ Desktop заменяет бывший Electron-клиент в репозито
 2. **Сгенерируйте ключи (Debug & Release):**
 
    ```bash
-   DEBUG_STORE_PASS=CHANGEME
+   DEBUG_STORE_PASS="CHANGEME"
-   DEBUG_KEY_PASS=CHANGEME
+   DEBUG_KEY_PASS="CHANGEME"
-   RELEASE_STORE_PASS=CHANGEME
+   RELEASE_STORE_PASS="CHANGEME"
-   RELEASE_KEY_PASS=CHANGEME
+   RELEASE_KEY_PASS="CHANGEME"
 
    mkdir -p app/android/keys
 
    keytool -genkey -v -keystore app/android/keys/debug.jks \
      -keyalg RSA -keysize 2048 -validity 10000 \
-     -alias key0 -storepass $DEBUG_STORE_PASS -keypass $DEBUG_KEY_PASS \
+     -alias key0 -storepass "$DEBUG_STORE_PASS" -keypass "$DEBUG_KEY_PASS" \
      -dname "CN=Debug, O=FromChat, C=RU"
 
    keytool -genkey -v -keystore app/android/keys/release.jks \
      -keyalg RSA -keysize 2048 -validity 10000 \
-     -alias key0 -storepass $RELEASE_STORE_PASS -keypass $RELEASE_KEY_PASS \
+     -alias key0 -storepass "$RELEASE_STORE_PASS" -keypass "$RELEASE_KEY_PASS" \
      -dname "CN=Release, O=FromChat, C=RU"
 
-   cat > app/android/keystore.properties << EOF
+   cat > app/android/keys/keystore.properties << EOF
    releaseStorePassword=$RELEASE_STORE_PASS
    releaseKeyPassword=$RELEASE_KEY_PASS
    debugStorePassword=$DEBUG_STORE_PASS

app/android/build.gradle.kts

@@ -75,19 +75,25 @@ extensions.configure<ApplicationExtension> {
             load(file("keys/keystore.properties").inputStream())
         }
 
+        fun Properties.password(key: String): String {
+            val raw = getProperty(key)
+                ?: error("Missing $key in keys/keystore.properties")
+            return raw.trim().removeSurrounding("\"").removeSurrounding("'")
+        }
+
         create("release") {
             storeFile = file("keys/release.jks")
             keyAlias = "key0"
-            storePassword = keystoreProperties["releaseStorePassword"].toString()
+            storePassword = keystoreProperties.password("releaseStorePassword")
-            keyPassword = keystoreProperties["releaseKeyPassword"].toString()
+            keyPassword = keystoreProperties.password("releaseKeyPassword")
             enableV3Signing = true
         }
 
         getByName("debug") {
             storeFile = file("keys/debug.jks")
-            keyAlias = "debug"
+            keyAlias = "key0"
-            storePassword = keystoreProperties["debugStorePassword"].toString()
+            storePassword = keystoreProperties.password("debugStorePassword")
-            keyPassword = keystoreProperties["debugKeyPassword"].toString()
+            keyPassword = keystoreProperties.password("debugKeyPassword")
             enableV3Signing = true
         }
     }

app/shared/src/androidMain/kotlin/ru/fromchat/ui/chat/MessageContextMenuPopup.android.kt

@@ -0,0 +1,25 @@
+package ru.fromchat.ui.chat
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.window.Popup
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+
+@Composable
+internal actual fun MessageContextMenuPopup(
+    onDismissRequest: () -> Unit,
+    positionProvider: PopupPositionProvider,
+    content: @Composable () -> Unit,
+) {
+    Popup(
+        onDismissRequest = onDismissRequest,
+        popupPositionProvider = positionProvider,
+        properties = PopupProperties(
+            focusable = true,
+            dismissOnBackPress = true,
+            dismissOnClickOutside = true,
+            clippingEnabled = true,
+        ),
+        content = content,
+    )
+}

app/shared/src/androidMain/kotlin/ru/fromchat/ui/chat/utils/AttachmentDragDrop.android.kt

@@ -0,0 +1,132 @@
+package ru.fromchat.ui.chat.utils
+
+import android.app.Activity
+import android.content.ClipDescription
+import android.content.Context
+import android.content.ContextWrapper
+import android.net.Uri
+import android.provider.OpenableColumns
+import android.view.DragEvent
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.mimeTypes
+import androidx.compose.ui.draganddrop.toAndroidDragEvent
+import androidx.compose.ui.platform.LocalContext
+import androidx.core.app.ActivityCompat
+import androidx.core.net.toUri
+import java.io.File
+import java.io.FileOutputStream
+
+actual class AttachmentDropPermissionsHost(
+    internal val activity: Activity?,
+    internal val appContext: Context,
+)
+
+@Composable
+actual fun rememberAttachmentDropPermissionsHost(): AttachmentDropPermissionsHost {
+    val context = LocalContext.current
+    return remember(context) {
+        AttachmentDropPermissionsHost(
+            activity = findActivity(context),
+            appContext = context.applicationContext,
+        )
+    }
+}
+
+actual fun acceptsAttachmentDrop(event: DragAndDropEvent): Boolean {
+    val mimeTypes = event.mimeTypes()
+    if (mimeTypes.any { it == ClipDescription.MIMETYPE_TEXT_URILIST }) return true
+    return mimeTypes.any { mime ->
+        mime == "*/*" ||
+            mime.startsWith("image/") ||
+            mime.startsWith("video/") ||
+            mime.startsWith("application/") ||
+            mime.startsWith("audio/") ||
+            mime.startsWith("text/")
+    }
+}
+
+actual fun handleAttachmentDrop(
+    host: AttachmentDropPermissionsHost,
+    event: DragAndDropEvent,
+    onUris: (List<String>) -> Unit,
+): Boolean {
+    val androidEvent = event.toAndroidDragEvent()
+    // Temporary read access lasts only until release(); copy into app cache first.
+    val permission = host.activity?.let {
+        ActivityCompat.requestDragAndDropPermissions(it, androidEvent)
+    }
+    return try {
+        val sourceUris = extractAttachmentUris(androidEvent)
+        if (sourceUris.isEmpty()) {
+            false
+        } else {
+            val durableUris = sourceUris.mapNotNull { copyDropUriToCache(host.appContext, it) }
+            if (durableUris.isEmpty()) {
+                false
+            } else {
+                onUris(durableUris)
+                true
+            }
+        }
+    } finally {
+        permission?.release()
+    }
+}
+
+private fun extractAttachmentUris(androidEvent: DragEvent): List<String> {
+    val clipData = androidEvent.clipData ?: return emptyList()
+    val uris = mutableListOf<String>()
+    for (index in 0 until clipData.itemCount) {
+        val item = clipData.getItemAt(index)
+        item.uri?.toString()?.takeIf { it.isNotBlank() }?.let { uris.add(it) }
+        val text = item.text?.toString()?.trim().orEmpty()
+        if (text.startsWith("content:") || text.startsWith("file:")) {
+            uris.add(text)
+        }
+    }
+    return uris.distinct()
+}
+
+private fun copyDropUriToCache(context: Context, uriString: String): String? {
+    val uri = uriString.toUri()
+    if (uri.scheme == "file") {
+        val path = uri.path?.takeIf { it.isNotBlank() } ?: return null
+        return if (File(path).isFile) uriString else null
+    }
+    val displayName = resolveDisplayName(context, uri) ?: uri.lastPathSegment ?: "drop_file"
+    val safeName = displayName.replace(Regex("[^A-Za-z0-9._-]"), "_").ifBlank { "drop_file" }
+    val dir = File(context.cacheDir, "drag_drop").apply { mkdirs() }
+    val dest = File(dir, "${System.currentTimeMillis()}_$safeName")
+    return try {
+        context.contentResolver.openInputStream(uri)?.use { input ->
+            FileOutputStream(dest).use { output ->
+                input.copyTo(output)
+                output.flush()
+            }
+        } ?: return null
+        Uri.fromFile(dest).toString()
+    } catch (_: Exception) {
+        dest.delete()
+        null
+    }
+}
+
+private fun resolveDisplayName(context: Context, uri: Uri): String? =
+    runCatching {
+        context.contentResolver.query(uri, null, null, null, null)?.use { cursor ->
+            val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+            if (nameIndex >= 0 && cursor.moveToFirst()) {
+                cursor.getString(nameIndex)?.takeIf { it.isNotBlank() }
+            } else {
+                null
+            }
+        }
+    }.getOrNull()
+
+private tailrec fun findActivity(ctx: Context?): Activity? = when (ctx) {
+    is Activity -> ctx
+    is ContextWrapper -> findActivity(ctx.baseContext)
+    else -> null
+}

app/shared/src/commonMain/composeResources/values-ru/strings.xml

@@ -110,6 +110,7 @@
     <string name="search_not_found">Ничего не найдено</string>
     <string name="search_not_found_message">Ничего не найдено. Попробуйте переформулировать запрос.</string>
     <string name="message_placeholder">Напишите сообщение…</string>
+    <string name="chat_drop_attachment_hint">Отпустите файл здесь</string>
     <string name="status_connecting">Соединение</string>
     <string name="status_connected">Подключено</string>
     <string name="status_disconnected">Отключено</string>

app/shared/src/commonMain/composeResources/values/strings.xml

@@ -120,6 +120,7 @@
     <string name="search_not_found">No results</string>
     <string name="search_not_found_message">Nothing found here. Try rephrasing your query.</string>
     <string name="message_placeholder">Write a message…</string>
+    <string name="chat_drop_attachment_hint">Drop file here</string>
 
     <!-- Connection / chat chrome -->
     <string name="status_connecting">Connecting</string>

app/shared/src/commonMain/kotlin/ru/fromchat/api/UpdateSyncManager.kt

@@ -27,6 +27,7 @@ import ru.fromchat.api.schema.websocket.requests.AckUpdatesRequest
 import ru.fromchat.api.schema.websocket.requests.GetUpdatesRequest
 import ru.fromchat.api.schema.websocket.requests.GetUpdatesResponse
 import kotlin.concurrent.Volatile
+import kotlin.coroutines.cancellation.CancellationException
 
 /**
  * Per-device update cursor: advance + ack only after batches are applied successfully.
@@ -51,9 +52,10 @@ object UpdateSyncManager {
         val userId = currentUserId ?: return
         val key = KEY_UPDATES_LAST_SEQ_PREFIX + userId
         val stored = runCatching { settings.getInt(key, 0) }.getOrDefault(0)
-        Logger.d("UpdateSyncManager", "Loaded lastSeq=$stored for userId=$userId")
+        val next = maxOf(_lastSeq.value, stored)
-        _lastSeq.value = stored
+        Logger.d("UpdateSyncManager", "Loaded lastSeq=$stored for userId=$userId (inMemory=${_lastSeq.value} → $next)")
-        ConnectionStateStore.updateSeqAndMissed(lastSeq = stored, missedCount = null)
+        _lastSeq.value = next
+        ConnectionStateStore.updateSeqAndMissed(lastSeq = next, missedCount = _lastMissedCount.value)
     }
 
     /**
@@ -122,6 +124,7 @@ object UpdateSyncManager {
         ConnectionStateStore.onUpdating(start = true)
 
         try {
+            initializeFromStorage(ApiClient.user?.id)
             var rounds = 0
             var consecutiveFailures = 0
             while (rounds < 100) {
@@ -160,6 +163,16 @@ object UpdateSyncManager {
 
                 when (response.status) {
                     "tooLong" -> {
+                        initializeFromStorage(ApiClient.user?.id)
+                        if (_lastSeq.value >= response.lastSeq) {
+                            Logger.i(
+                                "UpdateSyncManager",
+                                "tooLong ignored — cursor already caught up " +
+                                    "lastSeq=${_lastSeq.value} serverSeq=${response.lastSeq}",
+                            )
+                            sendAckFireAndForget(response.lastSeq)
+                            break
+                        }
                         val ok = rebuildStateFromHistory()
                         if (ok) {
                             persistLastSeq(response.lastSeq)
@@ -207,6 +220,8 @@ object UpdateSyncManager {
                     }
                 }
             }
+        } catch (t: CancellationException) {
+            throw t
         } catch (t: Throwable) {
             Logger.w("UpdateSyncManager", "Gap detection failed: ${t.message}", t)
         } finally {

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

@@ -88,6 +88,7 @@ import ru.fromchat.ui.calls.CallOverlay
 import ru.fromchat.ui.chat.panels.dm.navigateToDmChat
 import ru.fromchat.ui.chat.panels.publicchat.PublicChatNav
 import ru.fromchat.ui.chat.panels.publicchat.navigateToPublicChat
+import ru.fromchat.ui.chat.utils.appRootAttachmentDropTarget
 import ru.fromchat.ui.main.ConversationListDetailShell
 import ru.fromchat.ui.main.DesktopChatsDetailNavHost
 import ru.fromchat.ui.main.DesktopContactsDetailNavHost
@@ -242,6 +243,7 @@ fun App(
             runCatching { ensureFromChatCacheGeneration() }
             runCatching { NetworkConnectivity.ensureStarted() }
             runCatching { ApiClient.loadPersistedData() }
+            runCatching { UpdateSyncManager.initializeFromStorage(ApiClient.user?.id) }
             Logger.i("App", "FromChat started")
         }
 
@@ -265,10 +267,6 @@ fun App(
         }
         onContentReady()
 
-        runCatching {
-            UpdateSyncManager.initializeFromStorage(ApiClient.user?.id)
-        }
-
         DeferredStartupNetwork.scheduleAfterUiVisible()
 
         if (!hasToken) return@LaunchedEffect
@@ -525,7 +523,11 @@ fun App(
                     }
 
                     ScreenSurface {
-                        Box(Modifier.fillMaxSize()) {
+                        Box(
+                            Modifier
+                                .fillMaxSize()
+                                .appRootAttachmentDropTarget(),
+                        ) {
                             @Composable
                             fun AppNavHost(modifier: Modifier = Modifier) {
                                 NavHost(

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

@@ -3,10 +3,14 @@ package ru.fromchat.ui.auth
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.BoxScope
 import androidx.compose.foundation.layout.BoxWithConstraints
+import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.foundation.layout.union
 import androidx.compose.foundation.layout.widthIn
+import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Info
 import androidx.compose.material.icons.filled.MoreVert
@@ -30,6 +34,7 @@ import ru.fromchat.logs_title
 import ru.fromchat.more
 import ru.fromchat.ui.LocalNavController
 import ru.fromchat.ui.components.Text
+import ru.fromchat.ui.extraStatusBars
 import ru.fromchat.ui.main.settings.SettingsRoutes
 
 /** Margin between the window edge and the wide [AuthContentFrame] panel. */
@@ -37,7 +42,8 @@ val AuthWidePanelOuterPadding = 32.dp
 
 /**
  * Centers auth content on wide layouts (max 600×800.dp, [AuthWidePanelOuterPadding] margin).
- * Narrow layouts fill the window ([widePanel] = false).
+ * Narrow layouts fill the window edge-to-edge ([widePanel] = false) so top-bar haze can
+ * draw under the status bar; wide layouts clear system bars outside the panel.
  */
 @Composable
 fun AuthContentFrame(
@@ -47,6 +53,11 @@ fun AuthContentFrame(
     BoxWithConstraints(modifier.fillMaxSize()) {
         val widePanel = maxWidth > 600.dp
         if (widePanel) {
+            Box(
+                Modifier
+                    .fillMaxSize()
+                    .windowInsetsPadding(WindowInsets.safeDrawing.union(WindowInsets.extraStatusBars)),
+            ) {
                 Box(
                     Modifier
                         .align(Alignment.Center)
@@ -56,6 +67,7 @@ fun AuthContentFrame(
                 ) {
                     content(true)
                 }
+            }
         } else {
             Box(Modifier.fillMaxSize()) {
                 content(false)

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

@@ -1,12 +1,7 @@
 package ru.fromchat.ui.auth
 
-import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.safeDrawing
-import androidx.compose.foundation.layout.union
-import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Storage
 import androidx.compose.material3.MaterialTheme
@@ -442,13 +437,7 @@ fun AuthScreen(
     }
 
     val yandexStep = yandexParams
-    // Clear title bar / system bars outside the rounded panel (same as WelcomeScreen).
+    AuthContentFrame { widePanel ->
-    Box(
-        Modifier
-            .fillMaxSize()
-            .windowInsetsPadding(WindowInsets.safeDrawing.union(WindowInsets.extraStatusBars)),
-    ) {
-        AuthContentFrame { _ ->
         ExpressiveStepFlowScaffold(
             flowState = flowState,
             pages = listOf(
@@ -561,8 +550,12 @@ fun AuthScreen(
             onBackAtFirstPage = wrappedBackToWelcome,
             trailingTopBarActions = { PreAuthOverflowMenu() },
             contentBackground = MaterialTheme.colorScheme.background,
-                topBarWindowInsets = WindowInsets(0, 0, 0, 0),
+            // Wide panel: system bars cleared by [AuthContentFrame]. Compact: haze under status bar.
+            topBarWindowInsets = if (widePanel) {
+                WindowInsets(0, 0, 0, 0)
+            } else {
+                WindowInsets.extraStatusBars
+            },
         )
     }
-    }
 }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/ChatInput.kt

@@ -4,7 +4,10 @@ import androidx.compose.animation.AnimatedContent
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.animateContentSize
+import androidx.compose.animation.core.Animatable
+import androidx.compose.animation.core.animateDpAsState
 import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.expandVertically
 import androidx.compose.animation.fadeIn
@@ -53,17 +56,25 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.SnackbarHostState
 import ru.fromchat.ui.components.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.key
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.BlurredEdgeTreatment
+import androidx.compose.ui.draw.blur
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.graphics.TransformOrigin
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.graphics.lerp
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.input.key.Key
 import androidx.compose.ui.input.key.KeyEventType
@@ -72,6 +83,7 @@ import androidx.compose.ui.input.key.key
 import androidx.compose.ui.input.key.onPreviewKeyEvent
 import androidx.compose.ui.input.key.type
 import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.layout.layout
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.ImeAction
@@ -89,6 +101,7 @@ import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
 import ru.fromchat.api.schema.messages.Message
+import ru.fromchat.chat_drop_attachment_hint
 import ru.fromchat.cd_close
 import ru.fromchat.cd_emoji
 import ru.fromchat.cd_pick_file
@@ -104,10 +117,16 @@ import ru.fromchat.message_placeholder
 import ru.fromchat.message_replying_to
 import ru.fromchat.suspend_chat_banner_message
 import ru.fromchat.ui.chat.utils.SelectedAttachment
+import ru.fromchat.ui.chat.utils.AttachmentDragSession
 import ru.fromchat.ui.chat.utils.TypingHandler
+import ru.fromchat.ui.chat.utils.AttachmentDropBridge
+import ru.fromchat.ui.chat.utils.GlobalAttachmentDropRouter
+import ru.fromchat.ui.chat.utils.chatAttachmentDropTarget
 import ru.fromchat.ui.chat.utils.getFilenameFromUri
 import ru.fromchat.ui.chat.utils.rememberFilePicker
 import ru.fromchat.ui.chat.utils.rememberImagePicker
+import ru.fromchat.ui.chat.utils.urisToSelectedAttachments
+import kotlin.math.roundToInt
 import kotlin.time.Clock
 
 private val ChatInputChromeHeight = 54.dp
@@ -118,6 +137,23 @@ private val ChatInputIconSlotSize = 36.dp
 private val ChatInputIconSlotVerticalInset =
     (ChatInputChromeHeight - ChatInputIconSlotSize) / 2f
 
+private fun Modifier.scaleFadeLayout(scale: Float): Modifier = layout { measurable, constraints ->
+    val placeable = measurable.measure(constraints)
+    val width = (placeable.width * scale).roundToInt().coerceAtLeast(0)
+    val height = (placeable.height * scale).roundToInt().coerceAtLeast(0)
+    layout(width, height) {
+        placeable.placeWithLayer(
+            x = ((width - placeable.width) / 2f).roundToInt(),
+            y = ((height - placeable.height) / 2f).roundToInt(),
+        ) {
+            scaleX = scale
+            scaleY = scale
+            alpha = scale
+            transformOrigin = TransformOrigin.Center
+        }
+    }
+}
+
 @Composable
 private fun <T> AnimatedPreviewBar(
     state: T?,
@@ -194,12 +230,29 @@ private fun PreviewBar(
 @Composable
 private fun AttachmentChip(
     attachment: SelectedAttachment,
+    onRemoveStart: () -> Unit,
     onRemove: () -> Unit,
     removeContentDescription: String,
     modifier: Modifier = Modifier,
 ) {
+    val onRemoveState = rememberUpdatedState(onRemove)
+    val onRemoveStartState = rememberUpdatedState(onRemoveStart)
+    val scale = remember { Animatable(0f) }
+    var removing by remember { mutableStateOf(false) }
+
+    LaunchedEffect(removing) {
+        if (removing) {
+            scale.animateTo(0f, tween(durationMillis = 220, easing = FastOutSlowInEasing))
+            onRemoveState.value()
+        } else {
+            scale.animateTo(1f, tween(durationMillis = 220, easing = FastOutSlowInEasing))
+        }
+    }
+
     Row(
-        modifier = modifier
+        modifier = Modifier
+            .scaleFadeLayout(scale.value)
+            .then(modifier)
             .clip(RoundedCornerShape(12.dp))
             .background(MaterialTheme.colorScheme.surfaceVariant)
             .padding(horizontal = 8.dp, vertical = 6.dp),
@@ -231,7 +284,15 @@ private fun AttachmentChip(
             overflow = TextOverflow.Ellipsis,
             modifier = Modifier.widthIn(max = 120.dp),
         )
-        IconButton(onClick = onRemove, modifier = Modifier.size(24.dp)) {
+        IconButton(
+            onClick = {
+                if (removing) return@IconButton
+                removing = true
+                onRemoveStartState.value()
+            },
+            enabled = !removing,
+            modifier = Modifier.size(24.dp),
+        ) {
             Icon(
                 imageVector = Icons.Rounded.Close,
                 contentDescription = removeContentDescription,
@@ -259,11 +320,36 @@ fun ChatInput(
     onReadOnlyMessageClick: () -> Unit = {},
     snackbarHostState: SnackbarHostState? = null,
     hazeBlurEnabled: Boolean = true,
+    attachmentDropBridge: AttachmentDropBridge,
+    pendingDropUris: List<String> = emptyList(),
 ) {
     val composerHazeStyle = rememberChatSurfaceContainerHazeStyle()
+    val dropScrimColor = lerp(MaterialTheme.colorScheme.primary, Color.Black, 0.62f)
+    val attachmentDropEnabled = supportsAttachments && !isReadOnly
+    val dropHighlightActive =
+        attachmentDropEnabled &&
+            (attachmentDropBridge.dropHighlightActive || AttachmentDragSession.isActive)
+    val dropAnimMs = 220
+    val dropScale by animateFloatAsState(
+        targetValue = if (dropHighlightActive) 0.96f else 1f,
+        animationSpec = tween(durationMillis = dropAnimMs, easing = FastOutSlowInEasing),
+        label = "chat_input_drop_scale",
+    )
+    val dropOverlayAlpha by animateFloatAsState(
+        targetValue = if (dropHighlightActive) 1f else 0f,
+        animationSpec = tween(durationMillis = dropAnimMs, easing = FastOutSlowInEasing),
+        label = "chat_input_drop_overlay_alpha",
+    )
+    val dropBlurRadius by animateDpAsState(
+        targetValue = if (dropHighlightActive) 18.dp else 0.dp,
+        animationSpec = tween(durationMillis = dropAnimMs, easing = FastOutSlowInEasing),
+        label = "chat_input_drop_blur",
+    )
     val scope = rememberCoroutineScope()
     var typingJob by remember { mutableStateOf<kotlinx.coroutines.Job?>(null) }
     var attachments by remember { mutableStateOf<List<SelectedAttachment>>(emptyList()) }
+    var exitingAttachmentIds by remember { mutableStateOf(setOf<String>()) }
+    var pendingDropSeeded by remember { mutableStateOf(false) }
 
     val launchImagePicker = rememberImagePicker { uris ->
         attachments = attachments + uris.map { uri ->
@@ -288,6 +374,27 @@ fun ChatInput(
         }
     }
 
+    DisposableEffect(attachmentDropBridge, attachmentDropEnabled) {
+        fun acceptUris(uris: List<String>) {
+            if (!attachmentDropEnabled || uris.isEmpty()) return
+            attachments = attachments + urisToSelectedAttachments(uris, attachments.size)
+        }
+        attachmentDropBridge.consumer = ::acceptUris
+        GlobalAttachmentDropRouter.setConsumer(::acceptUris)
+        onDispose {
+            attachmentDropBridge.consumer = null
+            GlobalAttachmentDropRouter.setConsumer(null)
+        }
+    }
+
+    LaunchedEffect(pendingDropUris, attachmentDropEnabled) {
+        if (pendingDropSeeded || pendingDropUris.isEmpty() || !attachmentDropEnabled) {
+            return@LaunchedEffect
+        }
+        pendingDropSeeded = true
+        attachments = attachments + urisToSelectedAttachments(pendingDropUris, attachments.size)
+    }
+
     LaunchedEffect(text) {
         if (text.isNotBlank()) {
             typingJob?.cancel()
@@ -302,7 +409,9 @@ fun ChatInput(
         }
     }
 
-    val canSend = !isReadOnly && (text.isNotBlank() || attachments.isNotEmpty())
+    val canSend = !isReadOnly && (
+        text.isNotBlank() || attachments.any { it.id !in exitingAttachmentIds }
+    )
     val enterToSend = Settings.enterToSend
     val cdClose = stringResource(Res.string.cd_close)
     val cdRemove = stringResource(Res.string.cd_remove)
@@ -313,14 +422,16 @@ fun ChatInput(
     val corruptedShort = stringResource(Res.string.message_corrupted_short)
     val editingTitle = stringResource(Res.string.message_editing_title)
     val blockedMessage = stringResource(Res.string.suspend_chat_banner_message)
+    val dropAttachmentHint = stringResource(Res.string.chat_drop_attachment_hint)
     val cdVoiceUnavailable = "Функция пока не готова. Следите за обновлениями!"
 
     fun sendMessage() {
         if (!canSend) return
         val plaintext = text.trim().ifBlank { "" }
-        onSend(plaintext, attachments)
+        onSend(plaintext, attachments.filter { it.id !in exitingAttachmentIds })
         onTextChange("")
         attachments = emptyList()
+        exitingAttachmentIds = emptySet()
         typingHandler.stopTyping()
     }
 
@@ -360,7 +471,12 @@ fun ChatInput(
             }
         } else {
             Row(
-                modifier = Modifier.fillMaxWidth(),
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .chatAttachmentDropTarget(
+                        enabled = attachmentDropEnabled,
+                        bridge = attachmentDropBridge,
+                    ),
                 verticalAlignment = Alignment.Bottom,
                 horizontalArrangement = Arrangement.spacedBy(8.dp),
             ) {
@@ -370,17 +486,28 @@ fun ChatInput(
                     modifier = Modifier.weight(1f),
                     verticalAlignment = Alignment.Bottom,
                     horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    Box(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .graphicsLayer {
+                                scaleX = dropScale
+                                scaleY = dropScale
+                            }
+                            .clip(pillShape),
                     ) {
                         Column(
                             modifier = Modifier
                                 .fillMaxWidth()
                                 .background(MaterialTheme.colorScheme.surfaceContainer, pillShape)
-                            .clip(pillShape)
                                 .hazeEffect(state = hazeState) {
                                     blurEffect {
                                         blurEnabled = hazeBlurEnabled
                                         style = composerHazeStyle
                                     }
+                                }
+                                .conditional(dropBlurRadius > 0.dp) {
+                                    blur(dropBlurRadius, BlurredEdgeTreatment.Unbounded)
                                 },
                         ) {
                         AnimatedPreviewBar(replyTo) { reply ->
@@ -414,27 +541,36 @@ fun ChatInput(
                             )
                         }
 
-                        AnimatedVisibility(
+                        if (attachments.isNotEmpty()) {
-                            visible = attachments.isNotEmpty(),
-                            enter = fadeIn() + expandVertically(),
-                            exit = fadeOut() + shrinkVertically(),
-                        ) {
                             Row(
                                 modifier = Modifier
                                     .fillMaxWidth()
                                     .horizontalScroll(rememberScrollState())
-                                    .padding(horizontal = 10.dp, vertical = 4.dp),
+                                    .padding(start = 10.dp, end = 2.dp),
-                                horizontalArrangement = Arrangement.spacedBy(8.dp),
+                                verticalAlignment = Alignment.CenterVertically,
                             ) {
                                 attachments.forEach { attachment ->
+                                    key(attachment.id) {
                                         AttachmentChip(
                                             attachment = attachment,
-                                        onRemove = { attachments = attachments.filter { it.id != attachment.id } },
+                                            onRemoveStart = {
+                                                exitingAttachmentIds = exitingAttachmentIds + attachment.id
+                                            },
+                                            onRemove = {
+                                                attachments = attachments.filter { it.id != attachment.id }
+                                                exitingAttachmentIds = exitingAttachmentIds - attachment.id
+                                            },
                                             removeContentDescription = cdRemove,
+                                            modifier = Modifier.padding(
+                                                end = 8.dp,
+                                                top = 4.dp,
+                                                bottom = 4.dp,
+                                            ),
                                         )
                                     }
                                 }
                             }
+                        }
 
                         Row(
                             modifier = Modifier
@@ -563,6 +699,24 @@ fun ChatInput(
                             }
                         }
                         }
+
+                        Box(
+                            modifier = Modifier
+                                .matchParentSize()
+                                .graphicsLayer { alpha = dropOverlayAlpha }
+                                .clip(pillShape)
+                                .background(dropScrimColor.copy(alpha = 0.78f)),
+                            contentAlignment = Alignment.Center,
+                        ) {
+                            Text(
+                                text = dropAttachmentHint,
+                                style = MaterialTheme.typography.bodyLarge,
+                                color = MaterialTheme.colorScheme.onSurface,
+                                textAlign = TextAlign.Center,
+                                modifier = Modifier.padding(horizontal = 16.dp),
+                            )
+                        }
+                    }
                 }
 
                 // Fixed slot next to the pill; width must stay non-zero (see Row + fillMaxWidth pitfall above).

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/ChatScreen.kt

@@ -147,9 +147,12 @@ import ru.fromchat.status_connecting
 import ru.fromchat.status_updating
 import ru.fromchat.ui.LocalNavController
 import ru.fromchat.ui.chat.utils.AttachmentDownloadVisibility
+import ru.fromchat.ui.chat.utils.PendingChatAttachmentDrops
+import ru.fromchat.ui.chat.utils.chatAttachmentDropTarget
 import ru.fromchat.ui.chat.utils.getImageAspectRatio
 import ru.fromchat.ui.chat.utils.getImageDimensions
 import ru.fromchat.ui.chat.utils.imageAttachmentKey
+import ru.fromchat.ui.chat.utils.rememberAttachmentDropBridge
 import ru.fromchat.ui.chat.utils.visibleMessageIdsInChatList
 import ru.fromchat.ui.components.Text
 import ru.fromchat.ui.components.SuspendedAccountSupportSheet
@@ -443,6 +446,13 @@ fun ChatScreen(
     val online by NetworkConnectivity.isOnline.collectAsState(initial = true)
     val suspensionState by ApiClient.suspensionState.collectAsState()
     val isReadOnly = suspensionState.isSuspended
+    val attachmentDropBridge = rememberAttachmentDropBridge()
+    val attachmentDropEnabled = panel.supportsAttachments && !isReadOnly
+    val attachmentDropChatKey = panel.getRecipientId()?.let { PendingChatAttachmentDrops.dmKey(it) }
+        ?: PendingChatAttachmentDrops.publicKey()
+    val pendingDropUris = remember(attachmentDropChatKey) {
+        PendingChatAttachmentDrops.consume(attachmentDropChatKey)
+    }
     val dmRecipientId = panel.getRecipientId()
     var peerDeleted by remember(dmRecipientId) { mutableStateOf(false) }
     val deleteChatLabel = stringResource(Res.string.action_delete_chat)
@@ -875,6 +885,8 @@ fun ChatScreen(
                         text = inputText,
                         onTextChange = { inputText = it },
                         currentUserId = currentUserId,
+                        attachmentDropBridge = attachmentDropBridge,
+                        pendingDropUris = pendingDropUris,
                         onSend = { text, attachments ->
                             if (editingMessage != null) {
                                 scope.launch {
@@ -1086,6 +1098,10 @@ fun ChatScreen(
             Box(
                 modifier = Modifier
                     .fillMaxSize()
+                    .chatAttachmentDropTarget(
+                        enabled = attachmentDropEnabled,
+                        bridge = attachmentDropBridge,
+                    )
                     .then(
                         if (contextMenuState.isOpen) {
                             Modifier.pointerInput(Unit) {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/ChatTopBar.kt

@@ -411,10 +411,6 @@ fun ChatTopBar(
                         blurEffect {
                             blurEnabled = hazeBlurEnabled
                             style = hazeStyle
-                            progressive = HazeProgressive.verticalGradient(
-                                startIntensity = 1f,
-                                endIntensity = 0f,
-                            )
                         }
                     },
             )
@@ -453,10 +449,10 @@ private fun ChatTopBarPill(
     val pillShape = RoundedCornerShape(28.dp)
 
     Box(modifier = modifier.fillMaxWidth()) {
+        // Progressive blur only — not part of the pill chrome.
         Box(
             modifier = Modifier
                 .matchParentSize()
-                .background(chromeColor)
                 .hazeEffect(state = hazeState) {
                     blurEffect {
                         blurEnabled = hazeBlurEnabled

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/MessageContextMenu.kt

@@ -53,9 +53,7 @@ import androidx.compose.ui.unit.IntRect
 import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.window.Popup
 import androidx.compose.ui.window.PopupPositionProvider
-import androidx.compose.ui.window.PopupProperties
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
 import ru.fromchat.action_cancel_send
@@ -72,6 +70,14 @@ import ru.fromchat.api.schema.messages.Message
 import ru.fromchat.supportsMouseMessageInteraction
 import ru.fromchat.ui.components.Text
 
+/** Platform host for the message context menu (Popup on mobile, OS window on desktop). */
+@Composable
+internal expect fun MessageContextMenuPopup(
+    onDismissRequest: () -> Unit,
+    positionProvider: PopupPositionProvider,
+    content: @Composable () -> Unit,
+)
+
 data class ContextMenuState(
     val isOpen: Boolean = false,
     val message: Message? = null,
@@ -102,8 +108,8 @@ internal fun messageContextMenuFingerprint(
 }
 
 private val contextMenuEnterSpec = spring<Float>(
-    dampingRatio = Spring.DampingRatioNoBouncy,
+    dampingRatio = Spring.DampingRatioLowBouncy,
-    stiffness = Spring.StiffnessMedium,
+    stiffness = Spring.StiffnessMediumLow,
 )
 
 private fun clampContextMenuOffset(
@@ -226,20 +232,17 @@ fun MessageContextMenu(
             }
         }
 
-        val scale = 0.8f + 0.2f * animationProgress.floatValue
+        // Match list-item menus (0.5→1) so spring overshoot past 1 is visible.
-        val alpha = animationProgress.floatValue
+        val scale = 0.5f + 0.5f * animationProgress.floatValue
+        val alpha = animationProgress.floatValue.coerceIn(0f, 1f)
 
         // [state.position] is window coordinates (see MessageItem localToWindow).
         // Alignment+offset would add the popup parent’s window origin again (double offset
         // in list–detail panes). Place with an absolute provider instead.
-        Popup(
+        // Desktop uses a real OS window so the menu can sit outside the app frame.
+        MessageContextMenuPopup(
             onDismissRequest = onDismiss,
-            popupPositionProvider = positionProvider,
+            positionProvider = positionProvider,
-            properties = PopupProperties(
-                dismissOnBackPress = true,
-                dismissOnClickOutside = true,
-                clippingEnabled = false,
-            ),
         ) {
             ContextMenuContent(
                 message = state.message,

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/MessageItem.kt

@@ -72,6 +72,7 @@ import androidx.compose.ui.unit.sp
 import androidx.compose.ui.util.fastAll
 import kotlin.math.roundToInt
 import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Logger
@@ -246,24 +247,6 @@ fun MessageItem(
     val isCorrupted = remember(message.files, message.fileThumbnails, message.dmEnvelope) {
         isMessageCorrupted(message)
     }
-    val primaryIsImageMessage = remember(
-        message.pendingFileUri,
-        message.pendingFilename,
-        message.files,
-    ) {
-        val pendingIsImage = when {
-            message.pendingFileUri != null &&
-                DecryptedImageCache.isDecryptedImageCacheUri(message.pendingFileUri) -> true
-            message.pendingFilename?.isNotBlank() == true ->
-                isImageFilename(message.pendingFilename)
-            message.pendingFileUri != null -> isImageFilename(
-                message.pendingFileUri.substringAfterLast('/').substringBefore('?')
-            )
-            else -> false
-        }
-        pendingIsImage ||
-            message.files?.firstOrNull()?.let { isImageFilename(it.name) } == true
-    }
     val formattedTime = remember(message.timestamp) {
         formatMessageTimeLocal(message.timestamp)
     }
@@ -289,13 +272,16 @@ fun MessageItem(
     var rowLayoutCoords by remember(message.id) { mutableStateOf<LayoutCoordinates?>(null) }
     var bubbleContentCoords by remember(message.id) { mutableStateOf<LayoutCoordinates?>(null) }
     LaunchedEffect(isContextMenuForThisMessage) {
-        if (!isContextMenuForThisMessage) isPressed = false
+        if (isContextMenuForThisMessage) {
+            // Keep the press squash briefly so the bubble can animate down, then release
+            // so it springs back up as the menu opens.
+            delay(48)
+            isPressed = false
+        } else {
+            isPressed = false
         }
-    val scaleTarget = when {
-        isContextMenuForThisMessage -> 0.96f
-        isPressed && !isContextMenuOpen -> 0.96f
-        else -> 1f
     }
+    val scaleTarget = if (isPressed) 0.96f else 1f
     val avatarScaleTarget = if (avatarPressed && !isContextMenuOpen) 0.96f else 1f
     val replyScaleTarget = if (replyPressed && !isContextMenuOpen) 0.96f else 1f
     val scale by animateFloatAsState(
@@ -371,22 +357,17 @@ fun MessageItem(
                 "enterFinished=$enterFinished scale=${enterScale.value}",
         )
     }
-    LaunchedEffect(enterIdentity, isNewEnterRole, primaryIsImageMessage) {
+    LaunchedEffect(enterIdentity, isNewEnterRole) {
-        if (isNewEnterRole && primaryIsImageMessage) {
+        if (isNewEnterRole && !enterStarted) {
-            enterStarted = true
-            enterFinished = true
-            enterScale.snapTo(1f)
-        } else if (isNewEnterRole && !enterStarted) {
             enterStarted = true
             enterFinished = false
             enterScale.snapTo(0f)
         }
     }
-    val runEnterAnimation =
+    val runEnterAnimation = enterStarted && !enterFinished && !isExiting
-        enterStarted && !enterFinished && !isExiting && !primaryIsImageMessage
     // Single effect: start the spring as soon as this bubble is marked for enter.
-    LaunchedEffect(enterIdentity, runEnterAnimation, primaryIsImageMessage) {
+    LaunchedEffect(enterIdentity, runEnterAnimation) {
-        if (primaryIsImageMessage || !runEnterAnimation) return@LaunchedEffect
+        if (!runEnterAnimation) return@LaunchedEffect
         Logger.d(
             "EnterAnim",
             "spring_start identity=${enterIdentity.take(12)} " +

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/panels/dm/DmNav.kt

@@ -37,12 +37,17 @@ object DmNav {
 /**
  * Opens a DM chat, replacing any prior conversation/profile above the main `chat` root
  * so large-screen switches do not stack previous chats.
+ *
+ * No-ops when that DM chat is already the top destination (avoids NavHost enter/exit
+ * for re-selecting the same conversation in list–detail).
  */
 fun NavController.navigateToDmChat(
     otherUserId: Int,
     sourceMessageId: Int? = null,
     builder: NavOptionsBuilder.() -> Unit = {},
 ) {
+    if (isCurrentDmChat(otherUserId)) return
+
     navigate(DmNav.chatRoute(otherUserId, sourceMessageId)) {
         popUpTo(graph.startDestinationId) { saveState = true }
         launchSingleTop = true
@@ -50,6 +55,14 @@ fun NavController.navigateToDmChat(
     }
 }
 
+/** True when the back-stack top is already [DmNav.CHAT_ROUTE] for [otherUserId]. */
+fun NavController.isCurrentDmChat(otherUserId: Int): Boolean {
+    val entry = currentBackStackEntry ?: return false
+    if (entry.destination.route != DmNav.CHAT_ROUTE) return false
+    val currentId = entry.savedStateHandle.get<String>("otherUserId")?.toIntOrNull()
+    return currentId == otherUserId
+}
+
 private const val DM_AVATAR_KEY_PREFIX = "dm-avatar-"
 
 @Composable

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/panels/publicchat/PublicChatNav.kt

@@ -26,10 +26,15 @@ object PublicChatNav {
 
 /**
  * Opens the public chat, replacing any prior conversation/profile above the main `chat` root.
+ *
+ * No-ops when public chat is already the top destination (avoids NavHost enter/exit
+ * for re-selecting the same conversation in list–detail).
  */
 fun NavController.navigateToPublicChat(
     builder: NavOptionsBuilder.() -> Unit = {},
 ) {
+    if (currentBackStackEntry?.destination?.route == PublicChatNav.CHAT_ROUTE) return
+
     navigate(PublicChatNav.CHAT_ROUTE) {
         popUpTo(graph.startDestinationId) { saveState = true }
         launchSingleTop = true

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/utils/AttachmentDragDrop.kt

@@ -0,0 +1,275 @@
+package ru.fromchat.ui.chat.utils
+
+import androidx.compose.animation.core.FastOutSlowInEasing
+import androidx.compose.animation.core.animateDpAsState
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
+import androidx.compose.foundation.draganddrop.dragAndDropTarget
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxScope
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Stable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+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.composed
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.DragAndDropTarget
+import androidx.compose.ui.draw.BlurredEdgeTreatment
+import androidx.compose.ui.draw.blur
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.Shape
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.graphics.lerp
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import kotlin.time.Clock
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
+import ru.fromchat.chat_drop_attachment_hint
+import ru.fromchat.ui.chat.isImageFilename
+import ru.fromchat.ui.components.Text
+import com.pr0gramm3r101.utils.conditional
+
+/** True while a file drag that this process accepted is still in progress. */
+object AttachmentDragSession {
+    var isActive by mutableStateOf(false)
+        internal set
+}
+
+/**
+ * Delivers drops from the always-mounted app-root target to the visible chat composer.
+ * Needed when a chat opens after drag start (Compose targets miss ACTION_DRAG_STARTED).
+ */
+object GlobalAttachmentDropRouter {
+    private var consumer: ((List<String>) -> Unit)? = null
+
+    fun setConsumer(onUris: ((List<String>) -> Unit)?) {
+        consumer = onUris
+    }
+
+    fun deliver(uris: List<String>) {
+        if (uris.isNotEmpty()) consumer?.invoke(uris)
+    }
+}
+
+/** Holds drop URIs until the destination chat composer mounts. */
+object PendingChatAttachmentDrops {
+    private var pendingKey by mutableStateOf<String?>(null)
+    private var pendingUris by mutableStateOf<List<String>>(emptyList())
+
+    fun dmKey(otherUserId: Int) = "dm:$otherUserId"
+
+    fun publicKey() = "public"
+
+    fun offer(chatKey: String, uris: List<String>) {
+        if (uris.isEmpty()) return
+        pendingKey = chatKey
+        pendingUris = uris
+    }
+
+    fun consume(chatKey: String): List<String> {
+        if (pendingKey != chatKey) return emptyList()
+        val uris = pendingUris
+        pendingKey = null
+        pendingUris = emptyList()
+        return uris
+    }
+}
+
+@Stable
+class AttachmentDropBridge {
+    internal var consumer: ((List<String>) -> Unit)? = null
+
+    private var dropHighlightDepth by mutableIntStateOf(0)
+    var dropHighlightActive by mutableStateOf(false)
+        private set
+
+    fun deliver(uris: List<String>) {
+        if (uris.isNotEmpty()) consumer?.invoke(uris)
+    }
+
+    internal fun enterDropHighlight() {
+        dropHighlightDepth++
+        dropHighlightActive = dropHighlightDepth > 0
+    }
+
+    internal fun exitDropHighlight() {
+        if (dropHighlightDepth > 0) dropHighlightDepth--
+        dropHighlightActive = dropHighlightDepth > 0
+    }
+
+    internal fun endDropHighlight() {
+        dropHighlightDepth = 0
+        dropHighlightActive = false
+    }
+}
+
+@Composable
+fun rememberAttachmentDropBridge(): AttachmentDropBridge = remember { AttachmentDropBridge() }
+
+fun urisToSelectedAttachments(
+    uris: List<String>,
+    existingAttachmentCount: Int,
+): List<SelectedAttachment> =
+    uris.mapIndexed { index, uri ->
+        val filename = getFilenameFromUri(uri)
+        SelectedAttachment(
+            id = "drop_${Clock.System.now().toEpochMilliseconds()}_${existingAttachmentCount + index}",
+            uri = uri,
+            filename = filename,
+            sizeBytes = null,
+            isImage = isImageFilename(filename),
+        )
+    }
+
+expect class AttachmentDropPermissionsHost
+
+@Composable
+expect fun rememberAttachmentDropPermissionsHost(): AttachmentDropPermissionsHost
+
+expect fun acceptsAttachmentDrop(event: DragAndDropEvent): Boolean
+
+expect fun handleAttachmentDrop(
+    host: AttachmentDropPermissionsHost,
+    event: DragAndDropEvent,
+    onUris: (List<String>) -> Unit,
+): Boolean
+
+@OptIn(ExperimentalFoundationApi::class)
+fun Modifier.chatAttachmentDropTarget(
+    enabled: Boolean,
+    bridge: AttachmentDropBridge,
+): Modifier = composed {
+    if (!enabled) return@composed Modifier
+    val permissionsHost = rememberAttachmentDropPermissionsHost()
+    val target = remember(bridge, permissionsHost) {
+        object : DragAndDropTarget {
+            override fun onStarted(event: DragAndDropEvent) {
+                AttachmentDragSession.isActive = true
+            }
+
+            override fun onEntered(event: DragAndDropEvent) {
+                bridge.enterDropHighlight()
+            }
+
+            override fun onExited(event: DragAndDropEvent) {
+                bridge.exitDropHighlight()
+            }
+
+            override fun onEnded(event: DragAndDropEvent) {
+                bridge.endDropHighlight()
+                AttachmentDragSession.isActive = false
+            }
+
+            override fun onDrop(event: DragAndDropEvent): Boolean {
+                bridge.endDropHighlight()
+                AttachmentDragSession.isActive = false
+                return handleAttachmentDrop(permissionsHost, event) { bridge.deliver(it) }
+            }
+        }
+    }
+    dragAndDropTarget(
+        shouldStartDragAndDrop = { acceptsAttachmentDrop(it) },
+        target = target,
+    )
+}
+
+/**
+ * Always-mounted root target so a drag started on the chats list (or elsewhere) still
+ * receives DROP after navigating into a chat that was not composed at drag start.
+ */
+@OptIn(ExperimentalFoundationApi::class)
+fun Modifier.appRootAttachmentDropTarget(): Modifier = composed {
+    val permissionsHost = rememberAttachmentDropPermissionsHost()
+    val target = remember(permissionsHost) {
+        object : DragAndDropTarget {
+            override fun onStarted(event: DragAndDropEvent) {
+                AttachmentDragSession.isActive = true
+            }
+
+            override fun onEnded(event: DragAndDropEvent) {
+                AttachmentDragSession.isActive = false
+            }
+
+            override fun onDrop(event: DragAndDropEvent): Boolean {
+                AttachmentDragSession.isActive = false
+                return handleAttachmentDrop(permissionsHost, event) {
+                    GlobalAttachmentDropRouter.deliver(it)
+                }
+            }
+        }
+    }
+    dragAndDropTarget(
+        shouldStartDragAndDrop = { acceptsAttachmentDrop(it) },
+        target = target,
+    )
+}
+
+@Composable
+fun AttachmentDropHighlightBox(
+    active: Boolean,
+    shape: Shape,
+    modifier: Modifier = Modifier,
+    content: @Composable BoxScope.() -> Unit,
+) {
+    val dropAnimMs = 220
+    val dropScale by animateFloatAsState(
+        targetValue = if (active) 0.96f else 1f,
+        animationSpec = tween(durationMillis = dropAnimMs, easing = FastOutSlowInEasing),
+        label = "attachment_drop_scale",
+    )
+    val dropOverlayAlpha by animateFloatAsState(
+        targetValue = if (active) 1f else 0f,
+        animationSpec = tween(durationMillis = dropAnimMs, easing = FastOutSlowInEasing),
+        label = "attachment_drop_overlay_alpha",
+    )
+    val dropBlurRadius by animateDpAsState(
+        targetValue = if (active) 18.dp else 0.dp,
+        animationSpec = tween(durationMillis = dropAnimMs, easing = FastOutSlowInEasing),
+        label = "attachment_drop_blur",
+    )
+    val dropScrimColor = lerp(MaterialTheme.colorScheme.primary, Color.Black, 0.62f)
+    val dropAttachmentHint = stringResource(Res.string.chat_drop_attachment_hint)
+
+    Box(
+        modifier = modifier
+            .graphicsLayer {
+                scaleX = dropScale
+                scaleY = dropScale
+            }
+            .clip(shape),
+    ) {
+        Box(
+            modifier = Modifier.conditional(dropBlurRadius > 0.dp) {
+                blur(dropBlurRadius, BlurredEdgeTreatment.Unbounded)
+            },
+            content = content,
+        )
+        Box(
+            modifier = Modifier
+                .matchParentSize()
+                .graphicsLayer { alpha = dropOverlayAlpha }
+                .clip(shape)
+                .background(dropScrimColor.copy(alpha = 0.78f)),
+            contentAlignment = Alignment.Center,
+        ) {
+            Text(
+                text = dropAttachmentHint,
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurface,
+                textAlign = TextAlign.Center,
+                modifier = Modifier.padding(horizontal = 16.dp),
+            )
+        }
+    }
+}

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

@@ -14,11 +14,11 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.Stable
 import androidx.compose.runtime.compositionLocalOf
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.runtime.setValue
-import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.composed
 import androidx.compose.ui.focus.FocusRequester
@@ -141,6 +141,27 @@ private fun effectiveImeBottomPx(
     return (reportedImeBottomPx * (1f - progress)).roundToInt()
 }
 
+/**
+ * True while IME / page predictive-back is still moving — dismiss-follow must stay latched
+ * so reverse gestures keep scrolling content back up.
+ */
+private fun imeDismissFollowActive(
+    phase: ImeKeyboardPhase,
+    imeAnimating: Boolean,
+    predictiveBackProgress: Float,
+    reportedImeBottomPx: Int,
+    settledImeBottomPx: Int,
+): Boolean {
+    if (phase == ImeKeyboardPhase.Hidden && !imeAnimating && predictiveBackProgress <= 0f) {
+        return false
+    }
+    return predictiveBackProgress > 0f ||
+        imeAnimating ||
+        phase == ImeKeyboardPhase.Closing ||
+        phase == ImeKeyboardPhase.ReopeningPartial ||
+        (settledImeBottomPx > 0 && reportedImeBottomPx in 1 until settledImeBottomPx)
+}
+
 /** Scrolls the list when the IME would cover the focused field; skips if already fully visible. */
 @Composable
 fun LazyListImeScrollEffect(
@@ -176,13 +197,14 @@ fun LazyListImeScrollEffect(
         }
     }
 
+    // Do not key on focusedBoundsInWindow: scrollBy updates those bounds and would restart
+    // this effect every frame (cancel/re-apply), which oscillates two scroll targets.
     LaunchedEffect(
         imeMotion.currentBottomPx,
         imeMotion.sourceBottomPx,
         imeMotion.targetBottomPx,
         predictiveBackProgress(),
         scrollState.focusedItemIndex,
-        scrollState.focusedBoundsInWindow,
         viewportBoundsInWindow,
         contentPaddingTop,
         contentPaddingBottom,
@@ -208,12 +230,18 @@ fun LazyListImeScrollEffect(
 
         val reportedImeBottomPx = imeMotion.currentBottomPx
         val previousReported = previousReportedImeBottom.intValue
+        val progress = currentPredictiveProgress.value().coerceIn(0f, 1f)
         val phase = imeMotion.keyboardPhase(
             settledImeBottomPx = settledImeBottom.intValue,
             previousReportedImeBottomPx = previousReported,
         )
 
-        if (!imeMotion.isAnimating) {
+        // Keep the last fully-open height while dismiss-follow is latched; predictive IME
+        // can report source==target at a partial inset and would otherwise overwrite this.
+        if (!imeMotion.isAnimating &&
+            !wasFollowingKeyboardDismiss.value &&
+            progress <= 0f
+        ) {
             settledImeBottom.intValue = reportedImeBottomPx
         }
 
@@ -225,7 +253,6 @@ fun LazyListImeScrollEffect(
             else -> Unit
         }
 
-        val progress = currentPredictiveProgress.value().coerceIn(0f, 1f)
         val followImeBottom = if (progress > 0f) {
             effectiveImeBottomPx(reportedImeBottomPx, progress)
         } else {
@@ -260,9 +287,27 @@ fun LazyListImeScrollEffect(
             wasFollowingKeyboardDismiss.value = true
             previousFollowImeBottom.intValue = followImeBottom
             previousReportedImeBottom.intValue = reportedImeBottomPx
-            if (phase == ImeKeyboardPhase.Open || phase == ImeKeyboardPhase.Hidden) {
+
+            val followStillActive = imeDismissFollowActive(
+                phase = phase,
+                imeAnimating = imeMotion.isAnimating,
+                predictiveBackProgress = progress,
+                reportedImeBottomPx = reportedImeBottomPx,
+                settledImeBottomPx = settledImeBottom.intValue,
+            )
+            if (!followStillActive &&
+                (phase == ImeKeyboardPhase.Open || phase == ImeKeyboardPhase.Hidden)
+            ) {
+                // Reverse/abort already kept the gap locked while the IME moved back.
+                // Do not animateScrollBy here — that fights bring-into-view and glitches.
                 wasFollowingKeyboardDismiss.value = false
                 dismissFollowKeyboardTopGap.value = null
+                if (phase == ImeKeyboardPhase.Open) {
+                    skipStableAnchorAfterReopen.value = true
+                }
+                if (!imeMotion.isAnimating) {
+                    settledImeBottom.intValue = reportedImeBottomPx
+                }
             }
             return@LaunchedEffect
         }

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

@@ -45,6 +45,7 @@ import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Surface
 import androidx.compose.material3.ripple
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -76,6 +77,9 @@ import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.util.fastAll
 import kotlinx.coroutines.withTimeout
+import ru.fromchat.ui.chat.utils.AttachmentDropHighlightBox
+import ru.fromchat.ui.chat.utils.chatAttachmentDropTarget
+import ru.fromchat.ui.chat.utils.rememberAttachmentDropBridge
 import ru.fromchat.ui.components.SearchBar
 import ru.fromchat.ui.components.SearchBarSharedElement
 import com.pr0gramm3r101.components.Category
@@ -313,6 +317,9 @@ internal fun ChatConversationsList(
     ) -> Unit,
     onEnterSelectionMode: (lazyIndex: Int, target: ChatContextMenuTarget, userId: Int?) -> Unit,
     onRowPositioned: (lazyIndex: Int, offset: Offset, size: IntSize) -> Unit,
+    onDropAttachmentsOnPublic: (uris: List<String>) -> Unit = {},
+    onDropAttachmentsOnConversation: (userId: Int, uris: List<String>) -> Unit = { _, _ -> },
+    attachmentDropEnabled: Boolean = true,
 ) {
     val scrollBlocked = contextMenuState.isOverlayActive
     val showPublicChat = listFilter == ChatListFilter.Active && !publicChatTitle.isNullOrBlank()
@@ -435,6 +442,9 @@ internal fun ChatConversationsList(
                             onRowPositioned = { offset, size ->
                                 onRowPositioned(ChatListLayout.PUBLIC_CHAT_ROW, offset, size)
                             },
+                            attachmentDropEnabled = attachmentDropEnabled &&
+                                listMode == ChatsListMode.Normal,
+                            onAttachmentsDropped = onDropAttachmentsOnPublic,
                         )
                     }
                     if (conversations.isNotEmpty()) {
@@ -514,6 +524,11 @@ internal fun ChatConversationsList(
                                 onEnterSelectionMode(lazyIndex, ChatContextMenuTarget.Dm, conversation.otherUserId)
                             },
                             onRowPositioned = { offset, size -> onRowPositioned(lazyIndex, offset, size) },
+                            attachmentDropEnabled = attachmentDropEnabled &&
+                                listMode == ChatsListMode.Normal,
+                            onAttachmentsDropped = { uris ->
+                                onDropAttachmentsOnConversation(conversation.otherUserId, uris)
+                            },
                         )
                     }
                     if (index < conversations.lastIndex) {
@@ -827,12 +842,21 @@ internal fun PublicChatRow(
     onMouseContextMenu: (menuPosition: Offset, rowOffset: Offset, rowSize: IntSize) -> Unit,
     onBodyLongPress: () -> Unit,
     onRowPositioned: (offset: Offset, size: IntSize) -> Unit,
+    attachmentDropEnabled: Boolean = false,
+    onAttachmentsDropped: (List<String>) -> Unit = {},
 ) {
     var rowRootOffset by remember { mutableStateOf(Offset.Zero) }
     var rowSize by remember { mutableStateOf(IntSize.Zero) }
     val pressScaleAnim = remember { Animatable(1f) }
     val contextMenuScale = chatRowContextMenuScale(rowRevealProgress, contextMenuPressScaleActive)
     val rowInteractionSource = remember { MutableInteractionSource() }
+    val dropBridge = rememberAttachmentDropBridge()
+    val clipShape = listItemClipShape(listItemPosition, groupItemCount)
+
+    DisposableEffect(dropBridge, onAttachmentsDropped) {
+        dropBridge.consumer = onAttachmentsDropped
+        onDispose { dropBridge.consumer = null }
+    }
 
     LaunchedEffect(isPressingForContextMenu, isHiddenForOverlay, rowRevealProgress, contextMenuPressScaleActive) {
         when {
@@ -843,6 +867,16 @@ internal fun PublicChatRow(
         }
     }
 
+    AttachmentDropHighlightBox(
+        active = dropBridge.dropHighlightActive,
+        shape = clipShape,
+        modifier = Modifier
+            .fillMaxWidth()
+            .chatAttachmentDropTarget(
+                enabled = attachmentDropEnabled,
+                bridge = dropBridge,
+            ),
+    ) {
         ChatRowScaleContainer(
             listItemPosition = listItemPosition,
             groupItemCount = groupItemCount,
@@ -884,6 +918,7 @@ internal fun PublicChatRow(
                 onBodyLongPress = onBodyLongPress,
             )
         }
+    }
 }
 
 @Composable
@@ -974,12 +1009,21 @@ internal fun DmConversationRow(
     onBodyLongPress: () -> Unit,
     onRowPositioned: (offset: Offset, size: IntSize) -> Unit,
     avatarEnabled: Boolean = listMode == ChatsListMode.Normal,
+    attachmentDropEnabled: Boolean = false,
+    onAttachmentsDropped: (List<String>) -> Unit = {},
 ) {
     var rowRootOffset by remember { mutableStateOf(Offset.Zero) }
     var rowSize by remember { mutableStateOf(IntSize.Zero) }
     val pressScaleAnim = remember { Animatable(1f) }
     val contextMenuScale = chatRowContextMenuScale(rowRevealProgress, contextMenuPressScaleActive)
     val rowInteractionSource = remember { MutableInteractionSource() }
+    val dropBridge = rememberAttachmentDropBridge()
+    val clipShape = listItemClipShape(listItemPosition, groupItemCount)
+
+    DisposableEffect(dropBridge, onAttachmentsDropped) {
+        dropBridge.consumer = onAttachmentsDropped
+        onDispose { dropBridge.consumer = null }
+    }
 
     LaunchedEffect(isPressingForContextMenu, isHiddenForOverlay, rowRevealProgress, contextMenuPressScaleActive) {
         when {
@@ -990,6 +1034,16 @@ internal fun DmConversationRow(
         }
     }
 
+    AttachmentDropHighlightBox(
+        active = dropBridge.dropHighlightActive,
+        shape = clipShape,
+        modifier = Modifier
+            .fillMaxWidth()
+            .chatAttachmentDropTarget(
+                enabled = attachmentDropEnabled,
+                bridge = dropBridge,
+            ),
+    ) {
         ChatRowScaleContainer(
             listItemPosition = listItemPosition,
             groupItemCount = groupItemCount,
@@ -1031,6 +1085,7 @@ internal fun DmConversationRow(
                 onBodyLongPress = onBodyLongPress,
             )
         }
+    }
 }
 
 @Composable

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

@@ -139,10 +139,12 @@ import ru.fromchat.status_connecting
 import ru.fromchat.status_updating
 import ru.fromchat.account_suspended
 import ru.fromchat.ui.LocalNavController
+import ru.fromchat.ui.main.LocalConversationListDetailActive
 import ru.fromchat.ui.main.LocalDesktopChatsNavController
 import ru.fromchat.ui.main.LocalMainChromeInsets
 import ru.fromchat.ui.chat.panels.dm.navigateToDmChat
 import ru.fromchat.ui.chat.panels.publicchat.navigateToPublicChat
+import ru.fromchat.ui.chat.utils.PendingChatAttachmentDrops
 import ru.fromchat.ui.components.BackHandler
 import ru.fromchat.ui.components.BrandTitle
 import ru.fromchat.ui.components.ConnectingEllipsis
@@ -338,9 +340,14 @@ private fun rememberSearchBarCollapseSnap(
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 private fun chatsTopAppBarColors(blurReveal: Float) = TopAppBarDefaults.topAppBarColors(
-    // Match AppPanel (`surfaceContainerLowest`) when unscrolled so the bar is not a separate stripe.
+    // Two-pane list sits on AppPanel (`surfaceContainerLowest`); compact uses `surface`.
-    containerColor = MaterialTheme.colorScheme.surfaceContainerLowest
+    containerColor = (
-        .copy(alpha = 1f - blurReveal.coerceIn(0f, 1f)),
+        if (LocalConversationListDetailActive.current) {
+            MaterialTheme.colorScheme.surfaceContainerLowest
+        } else {
+            MaterialTheme.colorScheme.surface
+        }
+        ).copy(alpha = 1f - blurReveal.coerceIn(0f, 1f)),
     scrolledContainerColor = Color.Transparent,
 )
 
@@ -1001,6 +1008,19 @@ fun ChatsTab(
                                 userId != 0 -> navController.navigateToDmChat(userId)
                             }
                         },
+                        attachmentDropEnabled = !selectionMode && !suspensionState.isSuspended,
+                        onDropAttachmentsOnPublic = { uris ->
+                            if (uris.isEmpty() || suspensionState.isSuspended) return@ChatConversationsList
+                            PendingChatAttachmentDrops.offer(PendingChatAttachmentDrops.publicKey(), uris)
+                            navController.navigateToPublicChat()
+                        },
+                        onDropAttachmentsOnConversation = { userId, uris ->
+                            if (userId == 0 || uris.isEmpty() || suspensionState.isSuspended) {
+                                return@ChatConversationsList
+                            }
+                            PendingChatAttachmentDrops.offer(PendingChatAttachmentDrops.dmKey(userId), uris)
+                            navController.navigateToDmChat(userId)
+                        },
                         onAvatarContextMenuPressStart = { lazyIndex, target, userId, rowOffset, rowSize, position, groupCount ->
                             if (suspensionState.isSuspended) return@ChatConversationsList
                             avatarPressMark = TimeSource.Monotonic.markNow()

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

@@ -56,6 +56,7 @@ import ru.fromchat.settings_hub_profile_sub
 import ru.fromchat.ui.LocalNavController
 import ru.fromchat.ui.components.Text
 import ru.fromchat.ui.extraStatusBars
+import ru.fromchat.ui.main.LocalConversationListDetailActive
 import ru.fromchat.ui.main.LocalDesktopSettingsNavController
 import ru.fromchat.ui.main.LocalMainChromeInsets
 import ru.fromchat.ui.main.mainPagerBottomInset
@@ -89,10 +90,13 @@ fun SettingsTab() {
                 title = {
                     Text(stringResource(Res.string.settings), maxLines = 1, overflow = TextOverflow.Ellipsis)
                 },
-                // Match AppPanel / Chats unscrolled chrome — default `surface` reads as an
+                // Two-pane list sits on AppPanel (`surfaceContainerLowest`); compact uses `surface`.
-                // elevated (scrolled) stripe over `surfaceContainerLowest`.
                 colors = TopAppBarDefaults.topAppBarColors(
-                    containerColor = MaterialTheme.colorScheme.surfaceContainerLowest,
+                    containerColor = if (LocalConversationListDetailActive.current) {
+                        MaterialTheme.colorScheme.surfaceContainerLowest
+                    } else {
+                        MaterialTheme.colorScheme.surface
+                    },
                 ),
             )
         }

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

@@ -19,10 +19,7 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.safeDrawing
 import androidx.compose.foundation.layout.statusBars
-import androidx.compose.foundation.layout.union
-import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.text.KeyboardOptions
@@ -112,7 +109,6 @@ import ru.fromchat.server_ip_hint
 import ru.fromchat.server_ip_label
 import ru.fromchat.ui.LocalNavController
 import ru.fromchat.ui.auth.AuthContentFrame
-import ru.fromchat.ui.extraStatusBars
 import ru.fromchat.ui.components.CtaShape
 import ru.fromchat.ui.components.DisabledBringIntoViewSpec
 import ru.fromchat.ui.components.ExpressiveIconFrame
@@ -581,15 +577,9 @@ fun ServerConfigScreen() {
     }
 
     if (preAuth) {
-        Box(
-            Modifier
-                .fillMaxSize()
-                .windowInsetsPadding(WindowInsets.safeDrawing.union(WindowInsets.extraStatusBars)),
-        ) {
         AuthContentFrame { _ ->
             ServerConfigContent()
         }
-        }
     } else {
         ServerConfigContent()
     }

app/shared/src/iosMain/kotlin/ru/fromchat/ui/chat/MessageContextMenuPopup.ios.kt

@@ -0,0 +1,25 @@
+package ru.fromchat.ui.chat
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.window.Popup
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+
+@Composable
+internal actual fun MessageContextMenuPopup(
+    onDismissRequest: () -> Unit,
+    positionProvider: PopupPositionProvider,
+    content: @Composable () -> Unit,
+) {
+    Popup(
+        onDismissRequest = onDismissRequest,
+        popupPositionProvider = positionProvider,
+        properties = PopupProperties(
+            focusable = true,
+            dismissOnBackPress = true,
+            dismissOnClickOutside = true,
+            clippingEnabled = true,
+        ),
+        content = content,
+    )
+}

app/shared/src/iosMain/kotlin/ru/fromchat/ui/chat/utils/AttachmentDragDrop.ios.kt

@@ -0,0 +1,18 @@
+package ru.fromchat.ui.chat.utils
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+
+actual class AttachmentDropPermissionsHost
+
+@Composable
+actual fun rememberAttachmentDropPermissionsHost(): AttachmentDropPermissionsHost =
+    AttachmentDropPermissionsHost()
+
+actual fun acceptsAttachmentDrop(event: DragAndDropEvent): Boolean = false
+
+actual fun handleAttachmentDrop(
+    host: AttachmentDropPermissionsHost,
+    event: DragAndDropEvent,
+    onUris: (List<String>) -> Unit,
+): Boolean = false

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

@@ -0,0 +1,30 @@
+package ru.fromchat.ui.chat
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.window.Popup
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+
+/**
+ * Desktop uses an in-window [Popup] (not a separate OS window) so opening the menu does not
+ * steal focus from the main frame. [PopupProperties.clippingEnabled] is false so the menu can
+ * extend past the window edge when placement allows it.
+ */
+@Composable
+internal actual fun MessageContextMenuPopup(
+    onDismissRequest: () -> Unit,
+    positionProvider: PopupPositionProvider,
+    content: @Composable () -> Unit,
+) {
+    Popup(
+        onDismissRequest = onDismissRequest,
+        popupPositionProvider = positionProvider,
+        properties = PopupProperties(
+            focusable = true,
+            dismissOnBackPress = true,
+            dismissOnClickOutside = true,
+            clippingEnabled = false,
+        ),
+        content = content,
+    )
+}

app/shared/src/jvmMain/kotlin/ru/fromchat/ui/chat/utils/AttachmentDragDrop.jvm.kt

@@ -0,0 +1,63 @@
+@file:OptIn(androidx.compose.ui.ExperimentalComposeUiApi::class)
+
+package ru.fromchat.ui.chat.utils
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.awtTransferable
+import java.awt.datatransfer.DataFlavor
+import java.io.File
+import java.net.URI
+
+actual class AttachmentDropPermissionsHost
+
+@Composable
+actual fun rememberAttachmentDropPermissionsHost(): AttachmentDropPermissionsHost =
+    AttachmentDropPermissionsHost()
+
+actual fun acceptsAttachmentDrop(event: DragAndDropEvent): Boolean {
+    val transferable = event.awtTransferable
+    if (transferable.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) return true
+    return transferable.transferDataFlavors.any { flavor ->
+        val mime = flavor.mimeType.orEmpty()
+        mime.startsWith("image/") ||
+            mime == "application/octet-stream" ||
+            flavor == DataFlavor.stringFlavor
+    }
+}
+
+actual fun handleAttachmentDrop(
+    host: AttachmentDropPermissionsHost,
+    event: DragAndDropEvent,
+    onUris: (List<String>) -> Unit,
+): Boolean {
+    val uris = extractAttachmentDropUris(event)
+    if (uris.isEmpty()) return false
+    onUris(uris)
+    return true
+}
+
+private fun extractAttachmentDropUris(event: DragAndDropEvent): List<String> {
+    val transferable = event.awtTransferable
+    if (transferable.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
+        val files = transferable.getTransferData(DataFlavor.javaFileListFlavor) as? List<*>
+        return files.orEmpty().mapNotNull { entry ->
+            (entry as? File)?.absolutePath?.takeIf { it.isNotBlank() }
+        }.distinct()
+    }
+    if (transferable.isDataFlavorSupported(DataFlavor.stringFlavor)) {
+        val text = (transferable.getTransferData(DataFlavor.stringFlavor) as? String)?.trim().orEmpty()
+        if (text.startsWith("file:")) {
+            val path = runCatching { URI(text).path }.getOrNull()?.takeIf { it.isNotBlank() }
+                ?: text.removePrefix("file://")
+            return listOf(path)
+        }
+        if (text.startsWith("/") || looksLikeWindowsPath(text)) {
+            return listOf(text)
+        }
+    }
+    return emptyList()
+}
+
+private fun looksLikeWindowsPath(text: String): Boolean =
+    text.length > 2 && text[0].isLetter() && text[1] == ':'

gradle/gradle-daemon-jvm.properties

@@ -0,0 +1,13 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/491f83666ae7f4d6ebb28fee72ebb035/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/0d1a1acdc708062093673f65aa9aba4b/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/491f83666ae7f4d6ebb28fee72ebb035/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/0d1a1acdc708062093673f65aa9aba4b/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/7083b89563e7ce20943037b8cd2b8cc2/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/060bbb778a1f55ea705fdebd2ccfeab9/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/491f83666ae7f4d6ebb28fee72ebb035/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/0d1a1acdc708062093673f65aa9aba4b/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/d09679dc60fe5aa05ef7d03efdefac20/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/ed4e3bf2f5e7c5d9aabc4cbd8acd555e/redirect
+toolchainVendor=JETBRAINS
+toolchainVersion=21