Профиль и группы: фиксированные табы, fast-scroll с датой и Apple Emoji

2026-03-06 18:05:17 +05:00
parent 59d71c9717
commit 6429a61ad0
6 changed files with 457 additions and 60 deletions
--- a/app/src/main/java/com/rosetta/messenger/ui/chats/ChatsListScreen.kt
+++ b/app/src/main/java/com/rosetta/messenger/ui/chats/ChatsListScreen.kt
@@ -2919,14 +2919,15 @@ fun ChatItem(
                                        horizontalArrangement = Arrangement.SpaceBetween,
                                        verticalAlignment = Alignment.CenterVertically
                                ) {
-                                        Text(
+                                        AppleEmojiText(
                                                text = chat.name,
                                                fontSize = 16.sp,
                                                fontWeight = FontWeight.SemiBold,
                                                color = textColor,
                                                maxLines = 1,
-                                                overflow = TextOverflow.Ellipsis,
-                                                modifier = Modifier.weight(1f)
+                                                overflow = android.text.TextUtils.TruncateAt.END,
+                                                modifier = Modifier.weight(1f),
+                                                enableLinks = false
                                        )

                                        if (isMuted) {
@@ -3722,13 +3723,14 @@ fun DialogItemContent(
                                        modifier = Modifier.weight(1f),
                                        verticalAlignment = Alignment.CenterVertically
                                ) {
-                                        Text(
+                                        AppleEmojiText(
                                                text = displayName,
                                                fontWeight = FontWeight.SemiBold,
                                                fontSize = 16.sp,
                                                color = textColor,
                                                maxLines = 1,
-                                                overflow = TextOverflow.Ellipsis
+                                                overflow = android.text.TextUtils.TruncateAt.END,
+                                                enableLinks = false
                                        )
                                        if (isGroupDialog) {
                                                Spacer(modifier = Modifier.width(5.dp))
--- a/app/src/main/java/com/rosetta/messenger/ui/chats/GroupInfoScreen.kt
+++ b/app/src/main/java/com/rosetta/messenger/ui/chats/GroupInfoScreen.kt
@@ -14,6 +14,7 @@ import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.gestures.detectHorizontalDragGestures
+import androidx.compose.foundation.layout.aspectRatio
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -30,6 +31,10 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.statusBarsPadding
 import androidx.compose.foundation.layout.widthIn
 import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.itemsIndexed as gridItemsIndexed
+import androidx.compose.foundation.lazy.grid.rememberLazyGridState
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.rememberScrollState
@@ -82,7 +87,6 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.toArgb
-import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.platform.LocalUriHandler
@@ -124,6 +128,7 @@ import com.rosetta.messenger.ui.chats.components.ImageViewerScreen
 import com.rosetta.messenger.ui.chats.components.ViewableImage
 import com.rosetta.messenger.ui.components.AppleEmojiText
 import com.rosetta.messenger.ui.components.AvatarImage
+import com.rosetta.messenger.ui.components.SharedMediaFastScrollOverlay
 import com.rosetta.messenger.ui.components.VerifiedBadge
 import com.rosetta.messenger.ui.icons.TelegramIcons
 import androidx.lifecycle.viewmodel.compose.viewModel
@@ -133,9 +138,13 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import androidx.core.view.WindowCompat
 import org.json.JSONArray
+import java.text.SimpleDateFormat
 import java.util.Date
+import java.util.Locale
 import java.util.UUID
 import kotlin.math.abs
+import kotlin.math.ceil
+import kotlin.math.roundToInt

 private enum class GroupInfoTab(val title: String) {
    MEMBERS("Members"),
@@ -370,6 +379,8 @@ fun GroupInfoScreen(
    var showImageViewer by rememberSaveable(dialogPublicKey) { mutableStateOf(false) }
    var imageViewerInitialIndex by rememberSaveable(dialogPublicKey) { mutableStateOf(0) }
    var imageViewerSourceBounds by remember(dialogPublicKey) { mutableStateOf<ImageSourceBounds?>(null) }
+    val groupMediaGridState = rememberLazyGridState()
+    var groupMediaFastScrollHintDismissed by rememberSaveable(dialogPublicKey) { mutableStateOf(false) }

    val groupTitle = remember(groupEntity, groupUser.title) {
        groupEntity?.title?.trim().takeUnless { it.isNullOrBlank() }
@@ -1134,55 +1145,95 @@ fun GroupInfoScreen(
                } else {
                    val mediaColumns = 3
                    val mediaSpacing = 1.dp
-                    val mediaScreenWidth = LocalConfiguration.current.screenWidthDp.dp
-                    val mediaCellSize =
-                        (mediaScreenWidth - mediaSpacing * (mediaColumns - 1)) / mediaColumns
-                    val mediaIndexedRows = remember(groupMediaItems) {
-                        groupMediaItems.chunked(mediaColumns).mapIndexed { idx, row -> idx to row }
+                    val mediaRowsCount = remember(groupMediaItems.size) {
+                        ceil(groupMediaItems.size / mediaColumns.toFloat()).toInt().coerceAtLeast(1)
+                    }
+                    val mediaFastScrollVisible by remember(groupMediaItems.size, groupMediaGridState) {
+                        derivedStateOf {
+                            val visibleItems = groupMediaGridState.layoutInfo.visibleItemsInfo
+                            if (visibleItems.isEmpty()) return@derivedStateOf false
+                            val cellHeight = visibleItems.first().size.height
+                            val viewportHeight = groupMediaGridState.layoutInfo.viewportEndOffset -
+                                groupMediaGridState.layoutInfo.viewportStartOffset
+                            mediaRowsCount * cellHeight > viewportHeight
+                        }
+                    }
+                    val mediaFastScrollProgress by remember(groupMediaItems.size, groupMediaGridState) {
+                        derivedStateOf {
+                            val visibleItems = groupMediaGridState.layoutInfo.visibleItemsInfo
+                            if (visibleItems.isEmpty()) return@derivedStateOf 0f
+                            val cellHeight = visibleItems.first().size.height
+                            if (cellHeight <= 0) return@derivedStateOf 0f
+                            val viewportHeight = groupMediaGridState.layoutInfo.viewportEndOffset -
+                                groupMediaGridState.layoutInfo.viewportStartOffset
+                            val totalHeight = mediaRowsCount * cellHeight
+                            val maxScroll = (totalHeight - viewportHeight).coerceAtLeast(1)
+                            val firstRow = groupMediaGridState.firstVisibleItemIndex / mediaColumns
+                            val scrollY = firstRow * cellHeight + groupMediaGridState.firstVisibleItemScrollOffset
+                            (scrollY.toFloat() / maxScroll.toFloat()).coerceIn(0f, 1f)
+                        }
+                    }
+                    val mediaFastScrollMonthLabel by remember(groupMediaItems, groupMediaGridState.firstVisibleItemIndex) {
+                        derivedStateOf {
+                            if (groupMediaItems.isEmpty()) return@derivedStateOf ""
+                            val index = groupMediaGridState.firstVisibleItemIndex.coerceIn(0, groupMediaItems.lastIndex)
+                            formatMediaMonthLabel(groupMediaItems[index].timestamp)
+                        }
                    }

-                    LazyColumn(
-                        modifier = Modifier.fillMaxSize(),
-                        contentPadding = PaddingValues(bottom = 20.dp),
-                        verticalArrangement = Arrangement.spacedBy(mediaSpacing)
-                    ) {
-                        items(mediaIndexedRows, key = { (idx, _) -> "group_media_row_$idx" }) { (rowIdx, rowMedia) ->
-                            Row(
-                                modifier = Modifier.fillMaxWidth(),
-                                horizontalArrangement = Arrangement.spacedBy(mediaSpacing)
-                            ) {
-                                rowMedia.forEachIndexed { colIdx, mediaItem ->
-                                    val globalIndex = rowIdx * mediaColumns + colIdx
-                                    Box(
-                                        modifier = Modifier
-                                            .size(mediaCellSize)
-                                            .clip(RoundedCornerShape(0.dp))
-                                            .background(if (isDarkTheme) Color(0xFF141416) else Color(0xFFE6E7EB))
-                                    ) {
-                                        ImageAttachment(
-                                            attachment = mediaItem.attachment,
-                                            chachaKey = mediaItem.chachaKey,
-                                            privateKey = currentUserPrivateKey,
-                                            senderPublicKey = mediaItem.senderPublicKey,
-                                            isOutgoing = mediaItem.senderPublicKey == currentUserPublicKey,
-                                            isDarkTheme = isDarkTheme,
-                                            timestamp = Date(mediaItem.timestamp),
-                                            showTimeOverlay = false,
-                                            fillMaxSize = true,
-                                            onImageClick = { _, bounds ->
-                                                imageViewerInitialIndex = globalIndex
-                                                imageViewerSourceBounds = bounds
-                                                showImageViewer = true
-                                            }
-                                        )
-                                    }
-                                }
-
-                                repeat(mediaColumns - rowMedia.size) {
-                                    Spacer(modifier = Modifier.size(mediaCellSize))
+                    Box(modifier = Modifier.fillMaxSize()) {
+                        LazyVerticalGrid(
+                            columns = GridCells.Fixed(mediaColumns),
+                            state = groupMediaGridState,
+                            modifier = Modifier.fillMaxSize(),
+                            contentPadding = PaddingValues(bottom = 20.dp),
+                            horizontalArrangement = Arrangement.spacedBy(mediaSpacing),
+                            verticalArrangement = Arrangement.spacedBy(mediaSpacing)
+                        ) {
+                            gridItemsIndexed(groupMediaItems, key = { _, item -> item.key }) { index, mediaItem ->
+                                Box(
+                                    modifier = Modifier
+                                        .fillMaxWidth()
+                                        .aspectRatio(1f)
+                                        .clip(RoundedCornerShape(0.dp))
+                                        .background(if (isDarkTheme) Color(0xFF141416) else Color(0xFFE6E7EB))
+                                ) {
+                                    ImageAttachment(
+                                        attachment = mediaItem.attachment,
+                                        chachaKey = mediaItem.chachaKey,
+                                        privateKey = currentUserPrivateKey,
+                                        senderPublicKey = mediaItem.senderPublicKey,
+                                        isOutgoing = mediaItem.senderPublicKey == currentUserPublicKey,
+                                        isDarkTheme = isDarkTheme,
+                                        timestamp = Date(mediaItem.timestamp),
+                                        showTimeOverlay = false,
+                                        fillMaxSize = true,
+                                        onImageClick = { _, bounds ->
+                                            imageViewerInitialIndex = index
+                                            imageViewerSourceBounds = bounds
+                                            showImageViewer = true
+                                        }
+                                    )
                                }
                            }
                        }
+
+                        SharedMediaFastScrollOverlay(
+                            visible = mediaFastScrollVisible,
+                            progress = mediaFastScrollProgress,
+                            monthLabel = mediaFastScrollMonthLabel,
+                            isDarkTheme = isDarkTheme,
+                            showHint = mediaFastScrollVisible && !groupMediaFastScrollHintDismissed,
+                            onHintDismissed = { groupMediaFastScrollHintDismissed = true },
+                            onDragProgressChanged = { fraction ->
+                                if (groupMediaItems.isEmpty()) return@SharedMediaFastScrollOverlay
+                                val targetRow = ((mediaRowsCount - 1) * fraction).roundToInt()
+                                val targetIndex = (targetRow * mediaColumns).coerceIn(0, groupMediaItems.lastIndex)
+                                scope.launch {
+                                    groupMediaGridState.scrollToItem(targetIndex)
+                                }
+                            }
+                        )
                    }
                }
            }
@@ -1868,6 +1919,12 @@ private fun shortPublicKey(publicKey: String): String {
    return "${trimmed.take(6)}...${trimmed.takeLast(4)}"
 }

+private fun formatMediaMonthLabel(timestamp: Long): String {
+    return runCatching {
+        SimpleDateFormat("MMMM yyyy", Locale.getDefault()).format(Date(timestamp))
+    }.getOrElse { "" }
+}
+
 private fun decryptStoredMessageText(encryptedText: String, privateKey: String): String {
    if (encryptedText.isBlank()) return ""
    if (privateKey.isBlank()) return encryptedText
--- a/app/src/main/java/com/rosetta/messenger/ui/components/AvatarImage.kt
+++ b/app/src/main/java/com/rosetta/messenger/ui/components/AvatarImage.kt
@@ -207,11 +207,14 @@ fun AvatarPlaceholder(
            .background(avatarColors.backgroundColor),
        contentAlignment = Alignment.Center
    ) {
-        Text(
+        AppleEmojiText(
            text = avatarText,
            color = avatarColors.textColor,
            fontSize = fontSize ?: (size.value / 2.5).sp,
-            fontWeight = FontWeight.Medium
+            fontWeight = FontWeight.Medium,
+            maxLines = 1,
+            overflow = android.text.TextUtils.TruncateAt.END,
+            enableLinks = false
        )
    }
 }
--- a/app/src/main/java/com/rosetta/messenger/ui/components/SharedMediaFastScrollOverlay.kt
+++ b/app/src/main/java/com/rosetta/messenger/ui/components/SharedMediaFastScrollOverlay.kt
@@ -0,0 +1,241 @@
+package com.rosetta.messenger.ui.components
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.gestures.detectDragGestures
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.widthIn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.UnfoldMore
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableFloatStateOf
+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.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.layout.onSizeChanged
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.rosetta.messenger.R
+import kotlinx.coroutines.delay
+import kotlin.math.roundToInt
+
+@Composable
+fun SharedMediaFastScrollOverlay(
+    visible: Boolean,
+    progress: Float,
+    monthLabel: String,
+    isDarkTheme: Boolean,
+    showHint: Boolean,
+    onHintDismissed: () -> Unit,
+    onDragProgressChanged: (Float) -> Unit,
+    modifier: Modifier = Modifier
+) {
+    if (!visible) return
+
+    val thumbWidth = 24.dp
+    val thumbHeight = 44.dp
+    val thumbHeightPx = with(androidx.compose.ui.platform.LocalDensity.current) { thumbHeight.toPx() }
+    val monthBubbleOffsetXPx = with(androidx.compose.ui.platform.LocalDensity.current) { (-90).dp.roundToPx() }
+
+    var trackHeightPx by remember { mutableIntStateOf(0) }
+    var isDragging by remember { mutableStateOf(false) }
+    var dragProgress by remember { mutableFloatStateOf(progress.coerceIn(0f, 1f)) }
+    var hintVisible by remember(showHint) { mutableStateOf(showHint) }
+
+    val normalizedProgress = progress.coerceIn(0f, 1f)
+
+    LaunchedEffect(showHint) {
+        if (showHint) {
+            hintVisible = true
+            delay(4000)
+            hintVisible = false
+            onHintDismissed()
+        } else {
+            hintVisible = false
+        }
+    }
+
+    LaunchedEffect(normalizedProgress, isDragging) {
+        if (!isDragging) {
+            dragProgress = normalizedProgress
+        }
+    }
+
+    val shownProgress = if (isDragging) dragProgress else normalizedProgress
+    val trackTravelPx = (trackHeightPx - thumbHeightPx).coerceAtLeast(1f)
+    val thumbOffsetY = (trackTravelPx * shownProgress).coerceIn(0f, trackTravelPx)
+
+    Box(
+        modifier = modifier.fillMaxSize()
+    ) {
+        AnimatedVisibility(
+            visible = hintVisible && !isDragging,
+            enter = fadeIn(),
+            exit = fadeOut(),
+            modifier = Modifier
+                .align(Alignment.CenterEnd)
+                .padding(end = 44.dp)
+        ) {
+            SharedMediaFastScrollHint(isDarkTheme = isDarkTheme)
+        }
+
+        Box(
+            modifier = Modifier
+                .align(Alignment.CenterEnd)
+                .padding(end = 8.dp)
+                .fillMaxHeight(0.86f)
+                .width(40.dp)
+                .onSizeChanged { trackHeightPx = it.height }
+                .pointerInput(trackHeightPx, thumbHeightPx) {
+                    if (trackHeightPx <= 0) return@pointerInput
+                    fun updateProgress(y: Float) {
+                        val fraction = ((y - thumbHeightPx / 2f) / trackTravelPx).coerceIn(0f, 1f)
+                        dragProgress = fraction
+                        onDragProgressChanged(fraction)
+                    }
+                    detectDragGestures(
+                        onDragStart = { offset ->
+                            isDragging = true
+                            if (hintVisible) {
+                                hintVisible = false
+                                onHintDismissed()
+                            }
+                            updateProgress(offset.y)
+                        },
+                        onDragEnd = { isDragging = false },
+                        onDragCancel = { isDragging = false },
+                        onDrag = { change, _ ->
+                            updateProgress(change.position.y)
+                        }
+                    )
+                }
+        ) {
+            val trackColor = if (isDarkTheme) Color(0x5A7C8798) else Color(0x663F4F64)
+            val thumbColor = if (isDarkTheme) Color(0xFF29364A) else Color(0xFF2B4E73)
+            val thumbBorderColor = if (isDarkTheme) Color(0x6688A7CC) else Color(0x554B7DB0)
+
+            Box(
+                modifier = Modifier
+                    .align(Alignment.Center)
+                    .width(3.dp)
+                    .fillMaxHeight()
+                    .clip(RoundedCornerShape(2.dp))
+                    .background(trackColor)
+            )
+
+            Box(
+                modifier = Modifier
+                    .align(Alignment.TopCenter)
+                    .offset { IntOffset(0, thumbOffsetY.roundToInt()) }
+                    .size(width = thumbWidth, height = thumbHeight)
+                    .clip(RoundedCornerShape(12.dp))
+                    .background(thumbColor)
+                    .border(1.dp, thumbBorderColor, RoundedCornerShape(12.dp)),
+                contentAlignment = Alignment.Center
+            ) {
+                Icon(
+                    imageVector = Icons.Default.UnfoldMore,
+                    contentDescription = "Fast scroll handle",
+                    tint = Color.White.copy(alpha = 0.92f),
+                    modifier = Modifier.size(18.dp)
+                )
+            }
+
+            AnimatedVisibility(
+                visible = isDragging && monthLabel.isNotBlank(),
+                enter = fadeIn(),
+                exit = fadeOut(),
+                modifier = Modifier
+                    .align(Alignment.TopCenter)
+                    .offset {
+                        IntOffset(
+                            monthBubbleOffsetXPx,
+                            (thumbOffsetY + 6f).roundToInt()
+                        )
+                    }
+            ) {
+                SharedMediaMonthPill(
+                    monthLabel = monthLabel,
+                    isDarkTheme = isDarkTheme
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun SharedMediaFastScrollHint(isDarkTheme: Boolean) {
+    val background = if (isDarkTheme) Color(0xE6212934) else Color(0xE8263F63)
+    val iconBackground = if (isDarkTheme) Color(0x553A4A60) else Color(0x553A5A84)
+
+    Row(
+        modifier = Modifier
+            .clip(RoundedCornerShape(10.dp))
+            .background(background)
+            .padding(horizontal = 10.dp, vertical = 8.dp)
+            .widthIn(max = 250.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.spacedBy(8.dp)
+    ) {
+        Box(
+            modifier = Modifier
+                .size(22.dp)
+                .clip(RoundedCornerShape(6.dp))
+                .background(iconBackground),
+            contentAlignment = Alignment.Center
+        ) {
+            Icon(
+                imageVector = Icons.Default.UnfoldMore,
+                contentDescription = null,
+                tint = Color.White.copy(alpha = 0.92f),
+                modifier = Modifier.size(14.dp)
+            )
+        }
+        Text(
+            text = stringResource(R.string.shared_media_fast_scroll_hint),
+            color = Color.White.copy(alpha = 0.92f),
+            fontSize = 13.sp,
+            lineHeight = 16.sp
+        )
+    }
+}
+
+@Composable
+private fun SharedMediaMonthPill(monthLabel: String, isDarkTheme: Boolean) {
+    val background = if (isDarkTheme) Color(0xEE2A3445) else Color(0xEE2B4E73)
+    Text(
+        text = monthLabel,
+        color = Color.White.copy(alpha = 0.95f),
+        fontSize = 14.sp,
+        fontWeight = FontWeight.SemiBold,
+        modifier = Modifier
+            .clip(RoundedCornerShape(16.dp))
+            .background(background)
+            .padding(horizontal = 12.dp, vertical = 6.dp)
+    )
+}
--- a/app/src/main/java/com/rosetta/messenger/ui/settings/OtherProfileScreen.kt
+++ b/app/src/main/java/com/rosetta/messenger/ui/settings/OtherProfileScreen.kt
@@ -29,12 +29,14 @@ import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Block
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
+import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
@@ -90,6 +92,7 @@ import com.rosetta.messenger.ui.chats.components.ImageViewerScreen
 import com.rosetta.messenger.ui.chats.components.ViewableImage
 import com.rosetta.messenger.ui.components.AvatarImage
 import com.rosetta.messenger.ui.components.BlurredAvatarBackground
+import com.rosetta.messenger.ui.components.SharedMediaFastScrollOverlay
 import com.rosetta.messenger.ui.components.VerifiedBadge
 import com.rosetta.messenger.ui.onboarding.PrimaryBlue
 import com.rosetta.messenger.utils.AttachmentFileManager
@@ -111,6 +114,7 @@ import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale
 import kotlin.math.ceil
+import kotlin.math.roundToInt

 // Collapsing header constants
 private val EXPANDED_HEADER_HEIGHT_OTHER = 280.dp
@@ -557,12 +561,72 @@ fun OtherProfileScreen(
    val mediaScreenWidth = LocalConfiguration.current.screenWidthDp.dp
    val mediaCellSize = (mediaScreenWidth - mediaSpacing * (mediaColumns - 1)) / mediaColumns
    val mediaDecodeSemaphore = remember { Semaphore(4) }
+    val profileListState = rememberLazyListState()
+    var mediaFastScrollHintDismissed by rememberSaveable(user.publicKey) { mutableStateOf(false) }
    // Use stable key for bitmap cache - don't recreate on size change
    val mediaBitmapStates = remember { mutableStateMapOf<String, android.graphics.Bitmap?>() }
    // Pre-compute indexed rows to avoid O(n) indexOf calls
    val mediaIndexedRows = remember(sharedContent.mediaPhotos) {
        sharedContent.mediaPhotos.chunked(mediaColumns).mapIndexed { idx, row -> idx to row }
    }
+    val mediaRowsCount = remember(sharedContent.mediaPhotos.size) {
+        ceil(sharedContent.mediaPhotos.size / mediaColumns.toFloat()).toInt().coerceAtLeast(1)
+    }
+    val mediaRowHeightPx = with(density) { (mediaCellSize + mediaSpacing).toPx() }
+    val mediaMaxScrollPx by remember(sharedContent.mediaPhotos.size, mediaRowHeightPx, profileListState.layoutInfo) {
+        derivedStateOf {
+            val viewportHeight = (profileListState.layoutInfo.viewportEndOffset - profileListState.layoutInfo.viewportStartOffset)
+                .toFloat()
+                .coerceAtLeast(1f)
+            (mediaRowsCount * mediaRowHeightPx - viewportHeight).coerceAtLeast(1f)
+        }
+    }
+    val tabPagerScrollPx by remember(selectedTab, profileListState.layoutInfo, mediaMaxScrollPx) {
+        derivedStateOf {
+            if (selectedTab != OtherProfileTab.MEDIA) return@derivedStateOf 0f
+            val tabPagerInfo =
+                    profileListState.layoutInfo.visibleItemsInfo.firstOrNull { it.key == "tab_pager" }
+            when {
+                tabPagerInfo != null -> (-tabPagerInfo.offset).toFloat().coerceIn(0f, mediaMaxScrollPx)
+                profileListState.layoutInfo.visibleItemsInfo.any { it.key == "bottom_spacer" } -> mediaMaxScrollPx
+                else -> 0f
+            }
+        }
+    }
+    val mediaFastScrollProgress by remember(
+        selectedTab,
+        tabPagerScrollPx,
+        mediaMaxScrollPx
+    ) {
+        derivedStateOf {
+            if (selectedTab != OtherProfileTab.MEDIA) {
+                0f
+            } else {
+                (tabPagerScrollPx / mediaMaxScrollPx).coerceIn(0f, 1f)
+            }
+        }
+    }
+    val mediaFastScrollMonthLabel by remember(
+        selectedTab,
+        sharedContent.mediaPhotos,
+        tabPagerScrollPx,
+        mediaRowHeightPx,
+        mediaRowsCount
+    ) {
+        derivedStateOf {
+            if (selectedTab != OtherProfileTab.MEDIA || sharedContent.mediaPhotos.isEmpty()) return@derivedStateOf ""
+            val currentOffsetPx = tabPagerScrollPx
+            val rowIndex = if (mediaRowHeightPx <= 0f) 0 else (currentOffsetPx / mediaRowHeightPx).toInt()
+                .coerceIn(0, mediaRowsCount - 1)
+            val itemIndex = (rowIndex * mediaColumns).coerceIn(0, sharedContent.mediaPhotos.lastIndex)
+            formatMediaMonthLabel(sharedContent.mediaPhotos[itemIndex].timestamp)
+        }
+    }
+    val mediaFastScrollVisible by remember(selectedTab, sharedContent.mediaPhotos.size, mediaMaxScrollPx) {
+        derivedStateOf {
+            selectedTab == OtherProfileTab.MEDIA && sharedContent.mediaPhotos.isNotEmpty() && mediaMaxScrollPx > 24f
+        }
+    }

    Box(
            modifier =
@@ -572,6 +636,7 @@ fun OtherProfileScreen(
    ) {
        // Scrollable content
        LazyColumn(
+                state = profileListState,
                modifier =
                        Modifier.fillMaxSize()
                                .padding(
@@ -724,14 +789,20 @@ fun OtherProfileScreen(
                    )
                }

-                // ═══════════════════════════════════════════════════════════
-                // 📚 SHARED CONTENT (без разделителя — сразу табы)
-                // ═══════════════════════════════════════════════════════════
-                OtherProfileSharedTabs(
-                        selectedTab = selectedTab,
-                        onTabSelected = { tab -> selectedTab = tab },
-                        isDarkTheme = isDarkTheme
-                )
+            }
+
+            stickyHeader(key = "shared_tabs") {
+                Box(
+                        modifier = Modifier
+                                .fillMaxWidth()
+                                .background(backgroundColor)
+                ) {
+                    OtherProfileSharedTabs(
+                            selectedTab = selectedTab,
+                            onTabSelected = { tab -> selectedTab = tab },
+                            isDarkTheme = isDarkTheme
+                    )
+                }
            }

            // ══════════════════════════════════════════════════════
@@ -959,6 +1030,22 @@ fun OtherProfileScreen(
            }
        }

+        SharedMediaFastScrollOverlay(
+                visible = mediaFastScrollVisible,
+                progress = mediaFastScrollProgress,
+                monthLabel = mediaFastScrollMonthLabel,
+                isDarkTheme = isDarkTheme,
+                showHint = mediaFastScrollVisible && !mediaFastScrollHintDismissed,
+                onHintDismissed = { mediaFastScrollHintDismissed = true },
+                onDragProgressChanged = { fraction ->
+                    if (!mediaFastScrollVisible) return@SharedMediaFastScrollOverlay
+                    val targetOffset = (mediaMaxScrollPx * fraction).roundToInt()
+                    coroutineScope.launch {
+                        profileListState.scrollToItem(index = 2, scrollOffset = targetOffset)
+                    }
+                }
+        )
+
        // ═══════════════════════════════════════════════════════════
        // 🎨 COLLAPSING HEADER with METABALL EFFECT
        // ═══════════════════════════════════════════════════════════
@@ -1481,6 +1568,12 @@ private fun formatFileSize(sizeBytes: Long?): String {
    }
 }

+private fun formatMediaMonthLabel(timestamp: Long): String {
+    return runCatching {
+        SimpleDateFormat("MMMM yyyy", Locale.getDefault()).format(Date(timestamp))
+    }.getOrElse { "" }
+}
+
 private fun formatTimestamp(timestamp: Long): String {
    return SimpleDateFormat("dd MMM, HH:mm", Locale.getDefault()).format(Date(timestamp))
 }