Fix cloud photo rendering and selection actions

2026-07-18 14:21:21 +03:00
parent df9aa657a3
commit 7eaccd88bd
19 changed files with 943 additions and 104 deletions
@@ -137,8 +137,8 @@ android {

        testInstrumentationRunner "eu.qsfera.android.utils.OCTestAndroidJUnitRunner"

-        versionCode = 34
-        versionName = "1.3.6"
+        versionCode = 35
+        versionName = "1.3.7"

        buildConfigField "String", gitRemote, "\"" + getGitOriginRemote() + "\""
        buildConfigField "String", commitSHA1, "\"" + getLatestGitHash() + "\""
@@ -5,11 +5,12 @@
 */
 package eu.qsfera.android.presentation.cloud

+import android.content.ActivityNotFoundException
+import android.content.ClipData
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
-import android.os.Parcelable
 import android.view.View
 import android.widget.EditText
 import android.widget.ImageView
@@ -18,12 +19,14 @@ import android.widget.Toast
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.widget.SearchView
+import androidx.core.content.FileProvider
 import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
 import androidx.lifecycle.lifecycleScope
 import com.google.android.material.bottomnavigation.BottomNavigationView
 import com.google.android.material.bottomsheet.BottomSheetDialog
 import eu.qsfera.android.R
+import eu.qsfera.android.data.ClientManager
 import eu.qsfera.android.domain.files.FileRepository
 import eu.qsfera.android.domain.files.model.FileListOption
 import eu.qsfera.android.lib.common.QSferaAccount
@@ -35,7 +38,6 @@ import eu.qsfera.android.presentation.settings.SettingsActivity
 import eu.qsfera.android.presentation.thumbnails.ThumbnailsRequester
 import eu.qsfera.android.presentation.transfers.TransfersViewModel
 import eu.qsfera.android.ui.activity.FileActivity
-import eu.qsfera.android.ui.activity.FileDisplayActivity
 import eu.qsfera.android.ui.activity.UploadListActivity
 import eu.qsfera.android.ui.activity.enableEdgeToEdgePostSetContentView
 import eu.qsfera.android.ui.activity.enableEdgeToEdgePreSetContentView
@@ -44,8 +46,12 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.koin.android.ext.android.inject
 import org.koin.androidx.viewmodel.ext.android.viewModel
+import okhttp3.Request
+import java.io.File
+import java.io.FileOutputStream

 class CloudHomeActivity : FileActivity() {
+    private val clientManager: ClientManager by inject()
    private val fileRepository: FileRepository by inject()
    private val transfersViewModel: TransfersViewModel by viewModel()

@@ -55,6 +61,12 @@ class CloudHomeActivity : FileActivity() {
    private lateinit var toolbarTitle: TextView
    private lateinit var toolbarSearchButton: View
    private lateinit var toolbarSearch: SearchView
+    private lateinit var selectionToolbar: View
+    private lateinit var selectionCount: TextView
+    private lateinit var selectionProgress: View
+    private lateinit var selectionSend: View
+    private lateinit var selectionDelete: View
+    private lateinit var selectionMore: View
    private lateinit var bottomNavigation: BottomNavigationView
    private var uploadsWereRunning = false

@@ -76,6 +88,7 @@ class CloudHomeActivity : FileActivity() {
        setContentView(R.layout.activity_cloud_home)
        bindViews()
        setupToolbar()
+        setupSelectionToolbar()
        setupBottomNavigation()

        if (savedInstanceState == null) {
@@ -83,7 +96,12 @@ class CloudHomeActivity : FileActivity() {
                .replace(R.id.cloud_content, CloudHubFragment.newInstance(currentSection))
                .commitNow()
        }
-        selectSection(currentSection, updateNavigation = true)
+        if (savedInstanceState == null) {
+            selectSection(currentSection, updateNavigation = true)
+        } else {
+            showRootTitle(currentSection)
+            bottomNavigation.menu.findItem(currentSection.menuResource)?.isChecked = true
+        }
        loadAvatar()
        observeUploadCompletion()

@@ -92,6 +110,10 @@ class CloudHomeActivity : FileActivity() {
            findViewById<View>(R.id.cloud_toolbar).updateLayoutParams {
                height = resources.getDimensionPixelSize(R.dimen.cloud_toolbar_height) + insets.top
            }
+            selectionToolbar.updatePadding(top = insets.top)
+            selectionToolbar.updateLayoutParams {
+                height = resources.getDimensionPixelSize(R.dimen.cloud_toolbar_height) + insets.top
+            }
            findViewById<View>(R.id.cloud_bottom_spacer).updateLayoutParams {
                height = insets.bottom
            }
@@ -108,9 +130,141 @@ class CloudHomeActivity : FileActivity() {
        toolbarTitle = findViewById(R.id.cloud_toolbar_title)
        toolbarSearchButton = findViewById(R.id.cloud_toolbar_search_button)
        toolbarSearch = findViewById(R.id.cloud_toolbar_search)
+        selectionToolbar = findViewById(R.id.cloud_selection_toolbar)
+        selectionCount = findViewById(R.id.cloud_selection_count)
+        selectionProgress = findViewById(R.id.cloud_selection_progress)
+        selectionSend = findViewById(R.id.cloud_selection_send)
+        selectionDelete = findViewById(R.id.cloud_selection_delete)
+        selectionMore = findViewById(R.id.cloud_selection_more)
        bottomNavigation = findViewById(R.id.cloud_bottom_navigation)
    }

+    private fun setupSelectionToolbar() {
+        findViewById<View>(R.id.cloud_selection_close).setOnClickListener { cloudFragment()?.clearSelection() }
+        selectionSend.setOnClickListener { cloudFragment()?.shareSelectedMedia() }
+        selectionDelete.setOnClickListener { cloudFragment()?.confirmDeleteSelectedMedia() }
+        selectionMore.setOnClickListener { showMediaActionsSheet() }
+    }
+
+    fun showMediaSelection(count: Int) {
+        selectionToolbar.visibility = if (count > 0) View.VISIBLE else View.GONE
+        if (count > 0) {
+            selectionCount.text = resources.getQuantityString(R.plurals.items_selected_count, count, count)
+        } else {
+            setSelectionBusy(false)
+        }
+    }
+
+    fun setSelectionBusy(busy: Boolean) {
+        selectionProgress.visibility = if (busy) View.VISIBLE else View.GONE
+        listOf(selectionSend, selectionDelete, selectionMore).forEach { action ->
+            action.isEnabled = !busy
+            action.alpha = if (busy) 0.45f else 1f
+        }
+    }
+
+    private fun showMediaActionsSheet() {
+        val fragment = cloudFragment() ?: return
+        val dialog = BottomSheetDialog(this)
+        val content = layoutInflater.inflate(
+            R.layout.sheet_cloud_media_actions,
+            findViewById(android.R.id.content),
+            false,
+        )
+        dialog.setContentView(content)
+        content.findViewById<TextView>(R.id.cloud_media_actions_title).text = selectionCount.text
+        content.findViewById<View>(R.id.cloud_media_action_send).setOnClickListener {
+            dialog.dismiss()
+            fragment.shareSelectedMedia()
+        }
+        content.findViewById<View>(R.id.cloud_media_action_select_all).setOnClickListener {
+            dialog.dismiss()
+            fragment.selectAllVisibleMedia()
+        }
+        content.findViewById<View>(R.id.cloud_media_action_delete).setOnClickListener {
+            dialog.dismiss()
+            fragment.confirmDeleteSelectedMedia()
+        }
+        dialog.show()
+    }
+
+    fun shareMedia(items: List<CloudMediaItem>) {
+        if (items.isEmpty()) return
+        setSelectionBusy(true)
+        Toast.makeText(this, R.string.cloud_selection_preparing, Toast.LENGTH_SHORT).show()
+        lifecycleScope.launch {
+            val result = runCatching { downloadMediaToShareCache(items) }
+            setSelectionBusy(false)
+            result.onSuccess { files ->
+                val uris = files.map { file ->
+                    FileProvider.getUriForFile(
+                        this@CloudHomeActivity,
+                        getString(R.string.file_provider_authority),
+                        file,
+                    )
+                }
+                val mimeType = when {
+                    items.size == 1 -> items.first().mimeType
+                    items.all(CloudMediaItem::isImage) -> "image/*"
+                    items.all(CloudMediaItem::isVideo) -> "video/*"
+                    else -> "*/*"
+                }
+                val sendIntent = if (uris.size == 1) {
+                    Intent(Intent.ACTION_SEND).putExtra(Intent.EXTRA_STREAM, uris.first())
+                } else {
+                    Intent(Intent.ACTION_SEND_MULTIPLE).putParcelableArrayListExtra(Intent.EXTRA_STREAM, ArrayList(uris))
+                }.apply {
+                    type = mimeType
+                    addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                    clipData = ClipData.newUri(contentResolver, items.first().name, uris.first()).also { clip ->
+                        uris.drop(1).forEach { clip.addItem(ClipData.Item(it)) }
+                    }
+                }
+                startActivity(Intent.createChooser(sendIntent, getString(R.string.activity_chooser_send_file_title)))
+                cloudFragment()?.clearSelection()
+            }.onFailure {
+                Toast.makeText(this@CloudHomeActivity, R.string.cloud_selection_share_error, Toast.LENGTH_LONG).show()
+            }
+        }
+    }
+
+    private suspend fun downloadMediaToShareCache(items: List<CloudMediaItem>): List<File> = withContext(Dispatchers.IO) {
+        val currentAccount = AccountUtils.getCurrentQSferaAccount(this@CloudHomeActivity)
+        val client = clientManager.getClientForCoilThumbnails(currentAccount.name)
+        val authorization = client.credentials?.headerAuth.orEmpty()
+        val shareDirectory = File(externalCacheDir ?: cacheDir, SHARE_CACHE_DIRECTORY).apply { mkdirs() }
+        shareDirectory.listFiles()?.filter { it.isFile }?.forEach { it.delete() }
+        val usedNames = mutableSetOf<String>()
+        items.mapIndexed { index, media ->
+            val safeName = media.name.replace(INVALID_FILE_NAME_CHARS, "_").take(MAX_SHARED_FILE_NAME_LENGTH)
+                .ifBlank { "file-$index" }
+            var uniqueName = safeName
+            var suffix = 2
+            while (!usedNames.add(uniqueName.lowercase())) {
+                val extension = safeName.substringAfterLast('.', missingDelimiterValue = "")
+                val stem = safeName.substringBeforeLast('.', missingDelimiterValue = safeName)
+                uniqueName = if (extension.isBlank()) "$stem ($suffix)" else "$stem ($suffix).$extension"
+                suffix++
+            }
+            val destination = File(shareDirectory, uniqueName)
+            val requestBuilder = Request.Builder().url(contentUri(media, currentAccount))
+            if (authorization.isNotBlank()) requestBuilder.header("Authorization", authorization)
+            client.okHttpClient.newCall(requestBuilder.build()).execute().use { response ->
+                check(response.isSuccessful) { "WebDAV download failed with HTTP ${response.code}" }
+                val body = response.body ?: error("WebDAV response has no body")
+                FileOutputStream(destination).use { output -> body.byteStream().use { it.copyTo(output) } }
+            }
+            destination
+        }
+    }
+
+    private fun contentUri(media: CloudMediaItem, currentAccount: android.accounts.Account): String =
+        if (media.webDavHref.isNotBlank()) {
+            ThumbnailsRequester.getContentUriForWebDavHref(media.webDavHref, currentAccount)
+        } else {
+            ThumbnailsRequester.getContentUriForFile(media.toOCFile(currentAccount.name), currentAccount)
+        }
+
    private fun observeUploadCompletion() {
        transfersViewModel.workInfosListLiveData.observe(this) { workInfos ->
            val uploadsAreRunning = workInfos.isNotEmpty()
@@ -211,6 +365,10 @@ class CloudHomeActivity : FileActivity() {

    @Deprecated("Deprecated in Java")
    override fun onBackPressed() {
+        if (cloudFragment()?.hasSelection() == true) {
+            cloudFragment()?.clearSelection()
+            return
+        }
        if (this::toolbarSearch.isInitialized && toolbarSearch.visibility == View.VISIBLE) {
            closeSearch()
            return
@@ -328,7 +486,7 @@ class CloudHomeActivity : FileActivity() {
        dialog.setContentView(content)
        content.findViewById<View>(R.id.cloud_more_storage).setOnClickListener {
            dialog.dismiss()
-            selectSection(CloudSection.FILES, updateNavigation = true)
+            showFilesMode(CloudFilesMode.ALL)
        }
        content.findViewById<View>(R.id.cloud_more_transfers).setOnClickListener {
            dialog.dismiss()
@@ -336,15 +494,15 @@ class CloudHomeActivity : FileActivity() {
        }
        content.findViewById<View>(R.id.cloud_more_offline).setOnClickListener {
            dialog.dismiss()
-            openFileList(FileListOption.AV_OFFLINE)
+            showFilesMode(CloudFilesMode.OFFLINE)
        }
        content.findViewById<View>(R.id.cloud_more_shares).setOnClickListener {
            dialog.dismiss()
-            openFileList(FileListOption.SHARED_BY_LINK)
+            showFilesMode(CloudFilesMode.SHARES)
        }
        content.findViewById<View>(R.id.cloud_more_spaces).setOnClickListener {
            dialog.dismiss()
-            openFileList(FileListOption.SPACES_LIST)
+            showFilesMode(CloudFilesMode.SPACES)
        }
        content.findViewById<View>(R.id.cloud_more_settings).setOnClickListener {
            dialog.dismiss()
@@ -399,10 +557,32 @@ class CloudHomeActivity : FileActivity() {
    }

    fun openStorageItem(item: CloudStorageItem) {
-        startActivity(Intent(this, FileDisplayActivity::class.java).apply {
-            putExtra(FileActivity.EXTRA_FILE, item.toOCFile())
-            putExtra(FileActivity.EXTRA_FILE_LIST_OPTION, FileListOption.ALL_FILES as Parcelable)
-        })
+        if (item.isImage || item.isVideo) {
+            startActivity(CloudMediaPreviewActivity.createIntent(this, item.toCloudMedia()))
+            return
+        }
+        Toast.makeText(this, R.string.cloud_selection_preparing, Toast.LENGTH_SHORT).show()
+        lifecycleScope.launch {
+            val result = runCatching { downloadMediaToShareCache(listOf(item.toCloudMedia())).single() }
+            result.onSuccess { file ->
+                val uri = FileProvider.getUriForFile(
+                    this@CloudHomeActivity,
+                    getString(R.string.file_provider_authority),
+                    file,
+                )
+                val viewIntent = Intent(Intent.ACTION_VIEW).apply {
+                    setDataAndType(uri, item.mimeType)
+                    addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                }
+                try {
+                    startActivity(viewIntent)
+                } catch (_: ActivityNotFoundException) {
+                    Toast.makeText(this@CloudHomeActivity, R.string.cloud_file_open_error, Toast.LENGTH_LONG).show()
+                }
+            }.onFailure {
+                Toast.makeText(this@CloudHomeActivity, R.string.cloud_file_open_error, Toast.LENGTH_LONG).show()
+            }
+        }
    }

    override fun onAccountSet(stateWasRecovered: Boolean) {
@@ -412,14 +592,28 @@ class CloudHomeActivity : FileActivity() {
        cloudFragment()?.onAccountChanged()
    }

-    override fun navigateToOption(fileListOption: FileListOption) {
-        openFileList(fileListOption)
+    override fun restart() {
+        startActivity(createIntent(this, currentSection))
+        finish()
    }

-    private fun openFileList(option: FileListOption) {
-        startActivity(Intent(this, FileDisplayActivity::class.java).apply {
-            putExtra(FileActivity.EXTRA_FILE_LIST_OPTION, option as Parcelable)
-        })
+    override fun navigateToOption(fileListOption: FileListOption) {
+        showFilesMode(
+            when (fileListOption) {
+                FileListOption.ALL_FILES -> CloudFilesMode.ALL
+                FileListOption.AV_OFFLINE -> CloudFilesMode.OFFLINE
+                FileListOption.SHARED_BY_LINK -> CloudFilesMode.SHARES
+                FileListOption.SPACES_LIST -> CloudFilesMode.SPACES
+            }
+        )
+    }
+
+    internal fun showFilesMode(mode: CloudFilesMode) {
+        currentSection = CloudSection.FILES
+        closeSearch()
+        showRootTitle(CloudSection.FILES)
+        bottomNavigation.menu.findItem(CloudSection.FILES.menuResource)?.isChecked = true
+        cloudFragment()?.showFilesMode(mode)
    }

    private fun cloudFragment(): CloudHubFragment? =
@@ -428,6 +622,9 @@ class CloudHomeActivity : FileActivity() {
    companion object {
        private const val EXTRA_SECTION = "cloud_section"
        private const val STATE_SECTION = "cloud_state_section"
+        private const val SHARE_CACHE_DIRECTORY = "cloud-share"
+        private const val MAX_SHARED_FILE_NAME_LENGTH = 180
+        private val INVALID_FILE_NAME_CHARS = Regex("[\\\\/:*?\"<>|\\p{Cc}]")

        fun createIntent(context: Context, section: CloudSection): Intent =
            Intent(context, CloudHomeActivity::class.java).apply {
@@ -7,6 +7,7 @@ package eu.qsfera.android.presentation.cloud

 import android.accounts.Account
 import android.view.LayoutInflater
+import android.view.HapticFeedbackConstants
 import android.view.View
 import android.view.ViewGroup
 import android.widget.FrameLayout
@@ -24,6 +25,7 @@ import eu.qsfera.android.utils.MimetypeIconUtil
 internal class CloudHubAdapter(
    private var account: Account,
    private val onMediaClick: (CloudMediaItem) -> Unit,
+    private val onMediaLongClick: (CloudMediaItem) -> Unit,
    private val onAlbumClick: (String) -> Unit,
    private val onStorageClick: (CloudStorageItem) -> Unit,
    private val onShortcutClick: (CloudShortcut) -> Unit,
@@ -33,6 +35,7 @@ internal class CloudHubAdapter(
    private val onFeedGroupClick: (String) -> Unit,
 ) : RecyclerView.Adapter<CloudHubAdapter.Holder>() {
    private var rows: List<CloudHubRow> = emptyList()
+    private var selectedMediaKeys: Set<String> = emptySet()

    fun updateAccount(newAccount: Account) {
        if (account == newAccount) return
@@ -57,6 +60,17 @@ internal class CloudHubAdapter(
        result.dispatchUpdatesTo(this)
    }

+    fun updateMediaSelection(newSelection: Set<String>) {
+        if (selectedMediaKeys == newSelection) return
+        val changedKeys = (selectedMediaKeys - newSelection) + (newSelection - selectedMediaKeys)
+        selectedMediaKeys = newSelection
+        rows.forEachIndexed { index, row ->
+            if (row is CloudHubRow.Media && row.item.selectionKey in changedKeys) {
+                notifyItemChanged(index)
+            }
+        }
+    }
+
    override fun getItemCount(): Int = rows.size

    override fun getItemViewType(position: Int): Int = when (rows[position]) {
@@ -189,22 +203,44 @@ internal class CloudHubAdapter(
    private fun bindMedia(view: View, item: CloudMediaItem) {
        val image = view.findViewById<ImageView>(R.id.cloud_media_image)
        val video = view.findViewById<ImageView>(R.id.cloud_media_video)
+        val selectionScrim = view.findViewById<View>(R.id.cloud_media_selection_scrim)
+        val selectionCheck = view.findViewById<View>(R.id.cloud_media_selection_check)
+        val selected = item.selectionKey in selectedMediaKeys
        video.visibility = if (item.isVideo) View.VISIBLE else View.GONE
+        selectionScrim.visibility = if (selected) View.VISIBLE else View.GONE
+        selectionCheck.visibility = if (selected) View.VISIBLE else View.GONE
+        view.isActivated = selected
        loadMediaImage(image, item, PREVIEW_MEDIUM)
        view.contentDescription = item.name
        view.setOnClickListener { onMediaClick(item) }
+        view.setOnLongClickListener {
+            it.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS)
+            onMediaLongClick(item)
+            true
+        }
    }

    private fun loadMediaImage(image: ImageView, item: CloudMediaItem, size: Int) {
        if (item.isImage) {
            image.scaleType = ImageView.ScaleType.CENTER_CROP
-            image.load(
-                previewUri(item, size),
-                ThumbnailsRequester.getContentAddressedImageLoader(account),
-            ) {
-                placeholder(R.drawable.cloud_media_placeholder)
-                error(MimetypeIconUtil.getFileTypeIconId(item.mimeType, item.name))
-                crossfade(true)
+            val loader = ThumbnailsRequester.getContentAddressedImageLoader(account)
+            val requestKey = item.selectionKey
+            image.setTag(R.id.cloud_media_image, requestKey)
+            val preview = runCatching { previewUri(item, size) }.getOrNull()
+            if (preview == null) {
+                loadOriginalMediaImage(image, item, requestKey)
+            } else {
+                image.load(preview, loader) {
+                    placeholder(R.drawable.cloud_media_placeholder)
+                    crossfade(true)
+                    listener(
+                        onError = { _, _ ->
+                            if (image.getTag(R.id.cloud_media_image) == requestKey) {
+                                loadOriginalMediaImage(image, item, requestKey)
+                            }
+                        }
+                    )
+                }
            }
        } else {
            image.dispose()
@@ -213,6 +249,26 @@ internal class CloudHubAdapter(
        }
    }

+    private fun loadOriginalMediaImage(image: ImageView, item: CloudMediaItem, requestKey: String) {
+        val originalUri = runCatching { contentUri(item) }.getOrNull()
+        if (originalUri == null) {
+            image.setImageResource(MimetypeIconUtil.getFileTypeIconId(item.mimeType, item.name))
+            return
+        }
+        image.load(originalUri, ThumbnailsRequester.getContentAddressedImageLoader(account)) {
+            placeholder(R.drawable.cloud_media_placeholder)
+            error(MimetypeIconUtil.getFileTypeIconId(item.mimeType, item.name))
+            memoryCacheKey("$originalUri#${item.etag}")
+            diskCacheKey("$originalUri#${item.etag}")
+            crossfade(true)
+            listener(
+                onStart = {
+                    if (image.getTag(R.id.cloud_media_image) != requestKey) image.dispose()
+                }
+            )
+        }
+    }
+
    private fun bindStorage(view: View, item: CloudStorageItem) {
        view.findViewById<TextView>(R.id.cloud_storage_title).text = item.name
        view.findViewById<ImageView>(R.id.cloud_storage_icon).setImageResource(
@@ -232,15 +288,7 @@ internal class CloudHubAdapter(
        val cover = view.findViewById<ImageView>(R.id.cloud_album_cover)
        val coverItem = album.cover
        if (coverItem?.isImage == true) {
-            cover.scaleType = ImageView.ScaleType.CENTER_CROP
-            cover.load(
-                previewUri(coverItem, PREVIEW_MEDIUM),
-                ThumbnailsRequester.getContentAddressedImageLoader(account),
-            ) {
-                placeholder(R.drawable.cloud_media_placeholder)
-                error(R.drawable.ic_qsfera_folder)
-                crossfade(true)
-            }
+            loadMediaImage(cover, coverItem, PREVIEW_MEDIUM)
        } else {
            cover.dispose()
            cover.scaleType = ImageView.ScaleType.CENTER_INSIDE
@@ -262,6 +310,13 @@ internal class CloudHubAdapter(
            ThumbnailsRequester.getPreviewUriForFile(item.toOCFile(account.name), account, item.etag, size, size)
        }

+    private fun contentUri(item: CloudMediaItem): String =
+        if (item.webDavHref.isNotBlank()) {
+            ThumbnailsRequester.getContentUriForWebDavHref(item.webDavHref, account)
+        } else {
+            ThumbnailsRequester.getContentUriForFile(item.toOCFile(account.name), account)
+        }
+
    private fun bindAction(view: View, action: CloudHubRow.Action) {
        view.findViewById<ImageView>(R.id.cloud_action_icon).setImageResource(action.icon)
        view.findViewById<TextView>(R.id.cloud_action_title).text = action.title
@@ -6,11 +6,12 @@
 package eu.qsfera.android.presentation.cloud

 import android.content.Intent
+import android.os.Build
 import android.os.Bundle
-import android.os.Parcelable
 import android.view.View
 import android.widget.Toast
 import androidx.activity.OnBackPressedCallback
+import androidx.appcompat.app.AlertDialog
 import androidx.core.os.bundleOf
 import androidx.core.view.isVisible
 import androidx.fragment.app.Fragment
@@ -22,21 +23,21 @@ import com.google.android.material.floatingactionbutton.FloatingActionButton
 import eu.qsfera.android.R
 import eu.qsfera.android.data.ClientManager
 import eu.qsfera.android.data.executeRemoteOperation
-import eu.qsfera.android.domain.files.model.FileListOption
 import eu.qsfera.android.domain.files.FileRepository
+import eu.qsfera.android.domain.files.model.OCFile
+import eu.qsfera.android.domain.spaces.SpacesRepository
 import eu.qsfera.android.domain.transfers.TransferRepository
 import eu.qsfera.android.domain.transfers.model.UploadEnqueuedBy
 import eu.qsfera.android.lib.common.accounts.AccountUtils as LibraryAccountUtils
 import eu.qsfera.android.lib.resources.files.search.MediaSearchRequest
 import eu.qsfera.android.lib.resources.files.search.MediaSearchType
 import eu.qsfera.android.presentation.authentication.AccountUtils
-import eu.qsfera.android.ui.activity.FileActivity
-import eu.qsfera.android.ui.activity.FileDisplayActivity
 import eu.qsfera.android.ui.activity.UploadListActivity
 import eu.qsfera.android.utils.MimetypeIconUtil
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.koin.android.ext.android.inject
@@ -47,6 +48,7 @@ import java.util.Locale
 class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    private val clientManager: ClientManager by inject()
    private val fileRepository: FileRepository by inject()
+    private val spacesRepository: SpacesRepository by inject()
    private val transferRepository: TransferRepository by inject()

    private lateinit var section: CloudSection
@@ -66,6 +68,9 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    private var reachedEnd = false
    private var mediaLoaded = false
    private var filesLoaded = false
+    private var filesMode = CloudFilesMode.ALL
+    private var parentFilesMode: CloudFilesMode? = null
+    private var selection = CloudMediaSelection()

    var currentFolderPath: String = ROOT_PATH
        private set
@@ -81,15 +86,28 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        section = CloudSection.fromWireValue(arguments?.getString(ARG_SECTION))
+        val restoredSelection = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            savedInstanceState?.getParcelableArrayList(STATE_SELECTION, CloudMediaItem::class.java)
+        } else {
+            @Suppress("DEPRECATION")
+            savedInstanceState?.getParcelableArrayList(STATE_SELECTION)
+        }
+        selection = CloudMediaSelection(restoredSelection.orEmpty())
        requireActivity().onBackPressedDispatcher.addCallback(this, nestedBackCallback)
    }

+    override fun onSaveInstanceState(outState: Bundle) {
+        outState.putParcelableArrayList(STATE_SELECTION, ArrayList(selection.items))
+        super.onSaveInstanceState(outState)
+    }
+
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        val account = AccountUtils.getCurrentQSferaAccount(requireContext())
        adapter = CloudHubAdapter(
            account = account,
-            onMediaClick = ::openMedia,
+            onMediaClick = ::handleMediaClick,
+            onMediaLongClick = ::toggleMediaSelection,
            onAlbumClick = ::openAlbum,
            onStorageClick = ::openStorage,
            onShortcutClick = ::openShortcut,
@@ -124,6 +142,7 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
            setOnClickListener { (activity as? CloudHomeActivity)?.showAddSheet() }
        }
        configureSection()
+        updateSelectionUi()
        reload()
    }

@@ -133,11 +152,14 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
            return
        }
        invalidateActiveLoad()
-        if (currentFolderPath != ROOT_PATH) {
+        clearSelection()
+        if (currentFolderPath != ROOT_PATH || newSection == CloudSection.FILES) {
            filesLoaded = false
            storageItems = emptyList()
        }
        section = newSection
+        if (newSection == CloudSection.FILES) filesMode = CloudFilesMode.ALL
+        parentFilesMode = null
        activeAlbumPath = null
        activeFeedDate = null
        currentFolderPath = ROOT_PATH
@@ -197,6 +219,7 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    fun onAccountChanged() {
        if (!isAdded || !this::adapter.isInitialized) return
        invalidateActiveLoad()
+        clearSelection()
        adapter.updateAccount(AccountUtils.getCurrentQSferaAccount(requireContext()))
        allMedia = emptyList()
        storageItems = emptyList()
@@ -285,12 +308,14 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
        adapter.submitRows(listOf(CloudHubRow.Status(getString(R.string.cloud_media_loading), "")))
        val requestedPath = currentFolderPath
        val accountName = AccountUtils.getCurrentQSferaAccount(requireContext()).name
+        val requestedMode = filesMode
+        val requestedSpaceId = currentFolderSpaceId
        val requestGeneration = ++loadGeneration
        loadJob = viewLifecycleOwner.lifecycleScope.launch {
            val result = try {
                Result.success(
                    withContext(Dispatchers.IO) {
-                        loadStorageFolder(requestedPath, accountName)
+                        loadFilesForMode(requestedMode, requestedPath, requestedSpaceId, accountName)
                    }
                )
            } catch (cancelled: CancellationException) {
@@ -298,12 +323,9 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
            } catch (throwable: Throwable) {
                Result.failure(throwable)
            }
-            if (
-                !isAdded ||
-                requestGeneration != loadGeneration ||
-                section != CloudSection.FILES ||
-                requestedPath != currentFolderPath
-            ) return@launch
+            if (!isAdded || isStaleFilesRequest(requestGeneration, requestedPath, requestedMode, requestedSpaceId)) {
+                return@launch
+            }
            isLoading = false
            refresh.isRefreshing = false
            result.onSuccess { loadedFolder ->
@@ -328,14 +350,73 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
        }
    }

-    private fun loadStorageFolder(requestedPath: String, accountName: String): LoadedStorageFolder {
-        val rootFolder = fileRepository.getPersonalRootFolderForAccount(accountName)
-        val cachedFolder = storedFolder(requestedPath, accountName, rootFolder.spaceId)
+    private fun isStaleFilesRequest(
+        requestGeneration: Long,
+        requestedPath: String,
+        requestedMode: CloudFilesMode,
+        requestedSpaceId: String?,
+    ): Boolean = requestGeneration != loadGeneration ||
+        section != CloudSection.FILES ||
+        requestedPath != currentFolderPath ||
+        requestedMode != filesMode ||
+        requestedSpaceId != currentFolderSpaceId
+
+    private suspend fun loadFilesForMode(
+        mode: CloudFilesMode,
+        requestedPath: String,
+        requestedSpaceId: String?,
+        accountName: String,
+    ): LoadedStorageFolder = when (mode) {
+        CloudFilesMode.ALL -> { loadStorageFolder(requestedPath, requestedSpaceId, accountName) }
+        CloudFilesMode.OFFLINE -> {
+            LoadedStorageFolder(
+                items = fileRepository.getFilesAvailableOfflineFromAccount(accountName).map(OCFile::toCloudStorageItem),
+                spaceId = null,
+                usedCacheAfterRefreshFailure = false,
+            )
+        }
+        CloudFilesMode.SHARES -> {
+            LoadedStorageFolder(
+                items = fileRepository.getSharedByLinkWithSyncInfoForAccountAsFlow(accountName)
+                    .first()
+                    .map { it.file.toCloudStorageItem() },
+                spaceId = null,
+                usedCacheAfterRefreshFailure = false,
+            )
+        }
+        CloudFilesMode.SPACES -> {
+            val refreshFailed = runCatching { spacesRepository.refreshSpacesForAccount(accountName) }.isFailure
+            LoadedStorageFolder(
+                items = spacesRepository.getPersonalAndProjectSpacesForAccount(accountName)
+                    .filterNot { it.isDisabled }
+                    .map { space ->
+                        CloudStorageItem(
+                            remotePath = ROOT_PATH,
+                            mimeType = "DIR",
+                            size = space.quota?.used ?: 0L,
+                            modifiedAt = 0L,
+                            owner = accountName,
+                            etag = space.root.eTag.orEmpty(),
+                            remoteId = space.root.id,
+                            spaceId = space.id,
+                            displayName = space.name,
+                        )
+                    },
+                spaceId = null,
+                usedCacheAfterRefreshFailure = refreshFailed,
+            )
+        }
+    }
+
+    private fun loadStorageFolder(requestedPath: String, requestedSpaceId: String?, accountName: String): LoadedStorageFolder {
+        val personalRoot = fileRepository.getPersonalRootFolderForAccount(accountName)
+        val effectiveSpaceId = requestedSpaceId ?: personalRoot.spaceId
+        val cachedFolder = storedFolder(requestedPath, accountName, requestedSpaceId)
        val refreshFailure = runCatching {
-            fileRepository.refreshFolder(requestedPath, accountName, rootFolder.spaceId)
+            fileRepository.refreshFolder(requestedPath, accountName, effectiveSpaceId)
        }.exceptionOrNull()
        val refreshedFolder = if (refreshFailure == null) {
-            storedFolder(requestedPath, accountName, rootFolder.spaceId)
+            storedFolder(requestedPath, accountName, requestedSpaceId)
        } else {
            null
        }
@@ -349,7 +430,7 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    }

    private fun storedFolder(requestedPath: String, accountName: String, spaceId: String?) =
-        if (sameRemotePath(requestedPath, ROOT_PATH)) {
+        if (sameRemotePath(requestedPath, ROOT_PATH) && spaceId == null) {
            fileRepository.getPersonalRootFolderForAccount(accountName)
        } else {
            fileRepository.getFileByRemotePath(requestedPath, accountName, spaceId)
@@ -360,19 +441,7 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
        return fileRepository.getFolderContent(storedFolderId)
            .asSequence()
            .filterNot { sameRemotePath(it.remotePath, requestedPath) }
-            .map { remote ->
-                CloudStorageItem(
-                    remotePath = remote.remotePath,
-                    mimeType = remote.mimeType,
-                    size = remote.length,
-                    modifiedAt = remote.modificationTimestamp,
-                    owner = remote.owner,
-                    etag = remote.remoteEtag.orEmpty().ifBlank { remote.etag.orEmpty() },
-                    remoteId = remote.remoteId,
-                    permissions = remote.permissions,
-                    spaceId = remote.spaceId,
-                )
-            }
+            .map(OCFile::toCloudStorageItem)
            .sortedWith(compareByDescending<CloudStorageItem> { it.isFolder }.thenBy { it.name.lowercase() })
            .toList()
    }
@@ -465,6 +534,7 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
            CloudSection.MORE -> emptyList()
        }
        adapter.submitRows(rows)
+        adapter.updateMediaSelection(selection.keys)
    }

    private fun filteredMedia(): List<CloudMediaItem> = allMedia.filter { media ->
@@ -569,8 +639,103 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
            }
    }

-    private fun openMedia(media: CloudMediaItem) {
-        startActivity(CloudMediaPreviewActivity.createIntent(requireContext(), media))
+    private fun handleMediaClick(media: CloudMediaItem) {
+        if (selection.isEmpty) {
+            startActivity(CloudMediaPreviewActivity.createIntent(requireContext(), media))
+        } else {
+            toggleMediaSelection(media)
+        }
+    }
+
+    private fun toggleMediaSelection(media: CloudMediaItem) {
+        selection.toggle(media)
+        updateSelectionUi()
+    }
+
+    fun clearSelection() {
+        if (selection.isEmpty) return
+        selection.clear()
+        updateSelectionUi()
+    }
+
+    fun hasSelection(): Boolean = !selection.isEmpty
+
+    fun selectAllVisibleMedia() {
+        selection.selectAll(selectableMedia())
+        updateSelectionUi()
+    }
+
+    fun shareSelectedMedia() {
+        val selected = selection.items
+        if (selected.isNotEmpty()) {
+            (activity as? CloudHomeActivity)?.shareMedia(selected)
+        }
+    }
+
+    fun confirmDeleteSelectedMedia() {
+        val selected = selection.items
+        if (selected.isEmpty()) return
+        AlertDialog.Builder(requireContext())
+            .setMessage(resources.getQuantityString(R.plurals.cloud_selection_delete_confirm, selected.size, selected.size))
+            .setNegativeButton(android.R.string.cancel, null)
+            .setPositiveButton(R.string.cloud_selection_delete) { _, _ -> deleteMedia(selected) }
+            .show()
+    }
+
+    private fun deleteMedia(items: List<CloudMediaItem>) {
+        val accountName = AccountUtils.getCurrentQSferaAccount(requireContext()).name
+        (activity as? CloudHomeActivity)?.setSelectionBusy(true)
+        viewLifecycleOwner.lifecycleScope.launch {
+            val deletedItems = withContext(Dispatchers.IO) {
+                items.filter { item ->
+                    runCatching {
+                        val storedFile = fileRepository.getFileByRemotePath(item.remotePath, accountName, item.spaceId)
+                        if (storedFile?.id != null) {
+                            fileRepository.deleteFiles(listOf(storedFile), removeOnlyLocalCopy = false)
+                        } else {
+                            executeRemoteOperation {
+                                clientManager.getFileService(accountName).removeFile(
+                                    remotePath = item.remotePath,
+                                    spaceWebDavUrl = spacesRepository.getWebDavUrlForSpace(accountName, item.spaceId),
+                                )
+                            }
+                        }
+                    }.isSuccess
+                }
+            }
+            if (!isAdded) return@launch
+            (activity as? CloudHomeActivity)?.setSelectionBusy(false)
+            selection.clear()
+            allMedia = allMedia.filterNot { candidate ->
+                deletedItems.any { it.selectionKey == candidate.selectionKey }
+            }
+            updateSelectionUi()
+            if (deletedItems.size == items.size) {
+                render()
+                Toast.makeText(requireContext(), R.string.cloud_selection_delete_success, Toast.LENGTH_SHORT).show()
+            } else {
+                Toast.makeText(requireContext(), R.string.cloud_selection_delete_error, Toast.LENGTH_LONG).show()
+                reloadMedia()
+            }
+        }
+    }
+
+    private fun selectableMedia(): List<CloudMediaItem> {
+        val media = filteredMedia()
+        return when {
+            section == CloudSection.PHOTOS -> { media }
+            activeFeedDate != null -> {
+                val dateFormat = DateFormat.getDateInstance(DateFormat.LONG, Locale.getDefault())
+                media.filter { dateFormat.format(Date(it.modifiedAt)) == activeFeedDate }
+            }
+            activeAlbumPath != null -> { media.filter { it.albumKey == activeAlbumPath } }
+            else -> { emptyList() }
+        }
+    }
+
+    private fun updateSelectionUi() {
+        if (this::adapter.isInitialized) adapter.updateMediaSelection(selection.keys)
+        (activity as? CloudHomeActivity)?.showMediaSelection(selection.size)
    }

    private fun openFeedGroup(date: String) {
@@ -591,6 +756,8 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {

    private fun openStorage(item: CloudStorageItem) {
        if (item.isFolder) {
+            parentFilesMode = filesMode.takeUnless { it == CloudFilesMode.ALL }
+            filesMode = CloudFilesMode.ALL
            currentFolderPath = item.remotePath.ensureFolderPath()
            currentFolderSpaceId = item.spaceId
            filesLoaded = false
@@ -603,6 +770,10 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    }

    fun navigateUp() {
+        if (!selection.isEmpty) {
+            clearSelection()
+            return
+        }
        when {
            activeFeedDate != null -> {
                activeFeedDate = null
@@ -620,8 +791,10 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
                currentFolderPath = parentFolder(currentFolderPath)
                filesLoaded = false
                if (currentFolderPath == ROOT_PATH) {
-                    nestedBackCallback.isEnabled = false
-                    (activity as? CloudHomeActivity)?.restoreSectionTitle()
+                    nestedBackCallback.isEnabled = parentFilesMode != null
+                    if (parentFilesMode == null) {
+                        (activity as? CloudHomeActivity)?.restoreSectionTitle()
+                    }
                } else {
                    (activity as? CloudHomeActivity)?.showNestedTitle(
                        currentFolderPath.trimEnd('/').substringAfterLast('/')
@@ -629,14 +802,46 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
                }
                reloadFiles()
            }
+            section == CloudSection.FILES && parentFilesMode != null -> {
+                showFilesMode(parentFilesMode ?: CloudFilesMode.ALL)
+            }
+            section == CloudSection.FILES && filesMode != CloudFilesMode.ALL -> {
+                showFilesMode(CloudFilesMode.ALL)
+            }
        }
    }

+    internal fun showFilesMode(mode: CloudFilesMode) {
+        if (!this::adapter.isInitialized) return
+        invalidateActiveLoad()
+        clearSelection()
+        section = CloudSection.FILES
+        filesMode = mode
+        parentFilesMode = null
+        currentFolderPath = ROOT_PATH
+        currentFolderSpaceId = null
+        filesLoaded = false
+        nestedBackCallback.isEnabled = mode != CloudFilesMode.ALL
+        val title = when (mode) {
+            CloudFilesMode.ALL -> R.string.cloud_files_title
+            CloudFilesMode.OFFLINE -> R.string.cloud_files_offline_title
+            CloudFilesMode.SHARES -> R.string.cloud_files_shares_title
+            CloudFilesMode.SPACES -> R.string.cloud_files_spaces_title
+        }
+        if (mode == CloudFilesMode.ALL) {
+            (activity as? CloudHomeActivity)?.restoreSectionTitle()
+        } else {
+            (activity as? CloudHomeActivity)?.showNestedTitle(getString(title))
+        }
+        configureSection()
+        reloadFiles()
+    }
+
    private fun openShortcut(shortcut: CloudShortcut) {
        when (shortcut) {
            CloudShortcut.TRANSFERS -> startActivity(Intent(requireContext(), UploadListActivity::class.java))
-            CloudShortcut.OFFLINE -> openFileList(FileListOption.AV_OFFLINE)
-            CloudShortcut.SHARES -> openFileList(FileListOption.SHARED_BY_LINK)
+            CloudShortcut.OFFLINE -> (activity as? CloudHomeActivity)?.showFilesMode(CloudFilesMode.OFFLINE)
+            CloudShortcut.SHARES -> (activity as? CloudHomeActivity)?.showFilesMode(CloudFilesMode.SHARES)
        }
    }

@@ -644,25 +849,20 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
        when (action) {
            CloudAction.TRANSFERS -> startActivity(Intent(requireContext(), UploadListActivity::class.java))
            CloudAction.SETTINGS -> startActivity(Intent(requireContext(), eu.qsfera.android.presentation.settings.SettingsActivity::class.java))
-            CloudAction.STORAGE -> (activity as? CloudHomeActivity)?.navigateToOption(FileListOption.ALL_FILES)
-            CloudAction.OFFLINE -> openFileList(FileListOption.AV_OFFLINE)
-            CloudAction.SHARES -> openFileList(FileListOption.SHARED_BY_LINK)
-            CloudAction.SPACES -> openFileList(FileListOption.SPACES_LIST)
+            CloudAction.STORAGE -> (activity as? CloudHomeActivity)?.showFilesMode(CloudFilesMode.ALL)
+            CloudAction.OFFLINE -> (activity as? CloudHomeActivity)?.showFilesMode(CloudFilesMode.OFFLINE)
+            CloudAction.SHARES -> (activity as? CloudHomeActivity)?.showFilesMode(CloudFilesMode.SHARES)
+            CloudAction.SPACES -> (activity as? CloudHomeActivity)?.showFilesMode(CloudFilesMode.SPACES)
        }
    }

-    private fun openFileList(option: FileListOption) {
-        startActivity(Intent(requireContext(), FileDisplayActivity::class.java).apply {
-            putExtra(FileActivity.EXTRA_FILE_LIST_OPTION, option as Parcelable)
-        })
-    }
-
    companion object {
        private const val ARG_SECTION = "cloud_section"
        private const val GRID_SPANS = 6
        private const val MEDIA_PAGE_SIZE = 200
        private const val LOAD_MORE_THRESHOLD = 18
        private const val ROOT_PATH = "/"
+        private const val STATE_SELECTION = "cloud_media_selection"

        fun newInstance(section: CloudSection): CloudHubFragment = CloudHubFragment().apply {
            arguments = bundleOf(ARG_SECTION to section.wireValue)
@@ -680,6 +880,18 @@ class CloudHubFragment : Fragment(R.layout.fragment_cloud_hub) {
    }
 }

+private fun OCFile.toCloudStorageItem(): CloudStorageItem = CloudStorageItem(
+    remotePath = remotePath,
+    mimeType = mimeType,
+    size = length,
+    modifiedAt = modificationTimestamp,
+    owner = owner,
+    etag = remoteEtag.orEmpty().ifBlank { etag.orEmpty() },
+    remoteId = remoteId,
+    permissions = permissions,
+    spaceId = spaceId,
+)
+
 private data class LoadedMediaPage(
    val items: List<CloudMediaItem>,
    val rawResultCount: Int,
@@ -61,14 +61,30 @@ class CloudMediaPreviewActivity : AppCompatActivity() {
        val account = AccountUtils.getCurrentQSferaAccount(this)
        val photo = findViewById<PhotoView>(R.id.cloud_preview_photo).apply { visibility = View.VISIBLE }
        val progress = findViewById<ProgressBar>(R.id.cloud_preview_progress)
+        val loader = ThumbnailsRequester.getContentAddressedImageLoader(account)
        photo.load(
            previewUri(media, account, 2560, 2560),
-            ThumbnailsRequester.getContentAddressedImageLoader(account),
+            loader,
        ) {
            crossfade(true)
            listener(
                onSuccess = { _, _ -> progress.visibility = View.GONE },
-                onError = { _, _ -> progress.visibility = View.GONE },
+                onError = { _, _ ->
+                    val originalUri = runCatching { contentUri(media, account) }.getOrNull()
+                    if (originalUri == null) {
+                        progress.visibility = View.GONE
+                    } else {
+                        photo.load(originalUri, loader) {
+                            memoryCacheKey("$originalUri#${media.etag}")
+                            diskCacheKey("$originalUri#${media.etag}")
+                            crossfade(true)
+                            listener(
+                                onSuccess = { _, _ -> progress.visibility = View.GONE },
+                                onError = { _, _ -> progress.visibility = View.GONE },
+                            )
+                        }
+                    }
+                },
            )
        }
    }
@@ -82,7 +98,7 @@ class CloudMediaPreviewActivity : AppCompatActivity() {
            val prepared = runCatching {
                withContext(Dispatchers.IO) {
                    val client = clientManager.getClientForCoilThumbnails(account.name)
-                    val contentUrl = previewUri(media, account, 1, 1).substringBefore('?')
+                    val contentUrl = contentUri(media, account)
                    contentUrl to client.credentials?.headerAuth.orEmpty()
                }
            }.getOrNull() ?: run {
@@ -127,6 +143,13 @@ class CloudMediaPreviewActivity : AppCompatActivity() {
            )
        }

+    private fun contentUri(media: CloudMediaItem, account: Account): String =
+        if (media.webDavHref.isNotBlank()) {
+            ThumbnailsRequester.getContentUriForWebDavHref(media.webDavHref, account)
+        } else {
+            ThumbnailsRequester.getContentUriForFile(media.toOCFile(account.name), account)
+        }
+
    @Suppress("DEPRECATION")
    private fun mediaExtra(): CloudMediaItem? = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
        intent.getParcelableExtra(EXTRA_MEDIA, CloudMediaItem::class.java)
@@ -24,6 +24,7 @@ data class CloudMediaItem(
    val isVideo: Boolean get() = mimeType.startsWith("video/")
    val isImage: Boolean get() = mimeType.startsWith("image/")
    val albumKey: String get() = "${spaceId.orEmpty()}::$parentPath"
+    val selectionKey: String get() = "${spaceId.orEmpty()}::${webDavHref.ifBlank { remotePath }}"

    fun toOCFile(owner: String): OCFile = OCFile(
        owner = owner,
@@ -47,8 +48,9 @@ data class CloudStorageItem(
    val remoteId: String? = null,
    val permissions: String? = null,
    val spaceId: String? = null,
+    val displayName: String? = null,
 ) {
-    val name: String get() = remotePath.trimEnd('/').substringAfterLast('/').ifBlank { "/" }
+    val name: String get() = displayName ?: remotePath.trimEnd('/').substringAfterLast('/').ifBlank { "/" }
    val isFolder: Boolean get() = mimeType == "DIR" || mimeType == "httpd/unix-directory"
    val isImage: Boolean get() = mimeType.startsWith("image/")
    val isVideo: Boolean get() = mimeType.startsWith("video/")
@@ -72,9 +74,48 @@ data class CloudStorageItem(
        size = size,
        modifiedAt = modifiedAt,
        etag = etag,
+        spaceId = spaceId,
    )
 }

+internal class CloudMediaSelection(initialItems: Collection<CloudMediaItem> = emptyList()) {
+    private val selected = LinkedHashMap<String, CloudMediaItem>().apply {
+        initialItems.forEach { put(it.selectionKey, it) }
+    }
+
+    val size: Int get() = selected.size
+    val items: List<CloudMediaItem> get() = selected.values.toList()
+    val keys: Set<String> get() = selected.keys.toSet()
+    val isEmpty: Boolean get() = selected.isEmpty()
+
+    fun contains(item: CloudMediaItem): Boolean = item.selectionKey in selected
+
+    /** Returns true when [item] is selected after the toggle. */
+    fun toggle(item: CloudMediaItem): Boolean = if (selected.remove(item.selectionKey) != null) {
+        false
+    } else {
+        selected[item.selectionKey] = item
+        true
+    }
+
+    fun selectAll(items: Collection<CloudMediaItem>) {
+        items.forEach { selected[it.selectionKey] = it }
+    }
+
+    fun remove(items: Collection<CloudMediaItem>) {
+        items.forEach { selected.remove(it.selectionKey) }
+    }
+
+    fun clear() = selected.clear()
+}
+
+internal enum class CloudFilesMode {
+    ALL,
+    OFFLINE,
+    SHARES,
+    SPACES,
+}
+
 enum class CloudSection(val wireValue: String) {
    FEED("feed"),
    FILES("files"),
@@ -112,12 +112,19 @@ object ThumbnailsRequester : KoinComponent {
        width: Int = 1024,
        height: Int = 1024,
    ): String {
-        val baseUrl = accountBaseUrls.getOrPut(account.name) {
-            val accountManager = AccountManager.get(appContext)
-            accountManager.getUserData(account, eu.qsfera.android.lib.common.accounts.AccountUtils.Constants.KEY_OC_BASE_URL)
-                ?.trimEnd('/')
-                .orEmpty()
-        }
+        val absoluteHref = getContentUriForWebDavHref(webDavHref, account)
+        val separator = if ('?' in absoluteHref) '&' else '?'
+        return "$absoluteHref${separator}x=$width&y=$height&c=${etag.orEmpty()}&preview=1"
+    }
+
+    /**
+     * Returns the authenticated WebDAV content URL without preview parameters. This is used as
+     * a fallback for formats for which the server cannot generate a thumbnail. Absolute hrefs
+     * are restricted to the current account origin so a remote search result can never redirect
+     * the authenticated image loader to another server.
+     */
+    fun getContentUriForWebDavHref(webDavHref: String, account: Account): String {
+        val baseUrl = getAccountBaseUrl(account)
        val baseHttpUrl = baseUrl.toHttpUrlOrNull() ?: throw IllegalArgumentException("Invalid account base URL")
        val absoluteCandidate = webDavHref.toHttpUrlOrNull()
        if (absoluteCandidate != null) {
@@ -125,24 +132,22 @@ object ThumbnailsRequester : KoinComponent {
                absoluteCandidate.scheme == baseHttpUrl.scheme &&
                    absoluteCandidate.host == baseHttpUrl.host &&
                    absoluteCandidate.port == baseHttpUrl.port
-            ) { "WebDAV preview href must use the account origin" }
+            ) { "WebDAV href must use the account origin" }
        }
-        val absoluteHref = absoluteCandidate?.toString()
-            ?: "$baseUrl/${webDavHref.trimStart('/')}"
-        val separator = if ('?' in absoluteHref) '&' else '?'
-        return "$absoluteHref${separator}x=$width&y=$height&c=${etag.orEmpty()}&preview=1"
+        return absoluteCandidate?.toString() ?: "$baseUrl/${webDavHref.trimStart('/')}"
+    }
+
+    fun getContentUriForFile(file: OCFile, account: Account): String {
+        val normalizedRemotePath = file.remotePath.orEmpty()
+        val path = if (normalizedRemotePath.startsWith('/')) normalizedRemotePath else "/$normalizedRemotePath"
+        return "${getAccountBaseUrl(account)}/webdav${Uri.encode(path, "/")}"
    }

    fun getPreviewUriForSpaceSpecial(spaceSpecial: SpaceSpecial): String =
        String.format(Locale.US, SPACE_SPECIAL_PREVIEW_URI, spaceSpecial.webDavUrl, 1024, 1024, spaceSpecial.eTag)

    private fun getPreviewUri(remotePath: String?, etag: String?, account: Account, width: Int, height: Int): String {
-        val baseUrl = accountBaseUrls.getOrPut(account.name) {
-            val accountManager = AccountManager.get(appContext)
-            accountManager.getUserData(account, eu.qsfera.android.lib.common.accounts.AccountUtils.Constants.KEY_OC_BASE_URL)
-                ?.trimEnd('/')
-                .orEmpty()
-        }
+        val baseUrl = getAccountBaseUrl(account)
        val normalizedRemotePath = remotePath.orEmpty()
        val path = if (normalizedRemotePath.startsWith("/")) normalizedRemotePath else "/$normalizedRemotePath"
        val encodedPath = Uri.encode(path, "/")
@@ -150,6 +155,13 @@ object ThumbnailsRequester : KoinComponent {
        return String.format(Locale.US, FILE_PREVIEW_URI, baseUrl, encodedPath, width, height, etag.orEmpty())
    }

+    private fun getAccountBaseUrl(account: Account): String = accountBaseUrls.getOrPut(account.name) {
+        val accountManager = AccountManager.get(appContext)
+        accountManager.getUserData(account, eu.qsfera.android.lib.common.accounts.AccountUtils.Constants.KEY_OC_BASE_URL)
+            ?.trimEnd('/')
+            .orEmpty()
+    }
+
    fun getContentAddressedImageLoader(): ImageLoader {
        val account = AccountUtils.getCurrentQSferaAccount(appContext)
        return getContentAddressedImageLoader(account)
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
+    <solid android:color="@color/qsfera_blue" />
+    <stroke android:width="2dp" android:color="@android:color/white" />
+</shape>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M9,16.17 4.83,12 3.41,13.41 9,19 21,7 19.59,5.59z" />
+</vector>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM8,9h8v10H8V9zM15.5,4l-1,-1h-5l-1,1H5v2h14V4z" />
+</vector>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z" />
+</vector>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11C16.5,7.69 17.21,8 18,8c1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92s2.92,-1.31 2.92,-2.92S19.61,16.08 18,16.08z" />
+</vector>
@@ -83,6 +83,93 @@
            app:queryHint="@string/actionbar_search" />
    </androidx.constraintlayout.widget.ConstraintLayout>

+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/cloud_selection_toolbar"
+        android:layout_width="0dp"
+        android:layout_height="72dp"
+        android:background="@color/qsfera_blue"
+        android:paddingStart="8dp"
+        android:paddingEnd="8dp"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <androidx.appcompat.widget.AppCompatImageButton
+            android:id="@+id/cloud_selection_close"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/cloud_selection_close"
+            android:padding="12dp"
+            android:src="@drawable/ic_close"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:tint="@android:color/white" />
+
+        <TextView
+            android:id="@+id/cloud_selection_count"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:ellipsize="end"
+            android:maxLines="1"
+            android:textColor="@android:color/white"
+            android:textSize="20sp"
+            android:textStyle="bold"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/cloud_selection_progress"
+            app:layout_constraintStart_toEndOf="@id/cloud_selection_close"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ProgressBar
+            android:id="@+id/cloud_selection_progress"
+            android:layout_width="32dp"
+            android:layout_height="32dp"
+            android:indeterminateTint="@android:color/white"
+            android:visibility="gone"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/cloud_selection_send"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <androidx.appcompat.widget.AppCompatImageButton
+            android:id="@+id/cloud_selection_send"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/cloud_selection_send"
+            android:padding="11dp"
+            android:src="@drawable/ic_cloud_send"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/cloud_selection_delete"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <androidx.appcompat.widget.AppCompatImageButton
+            android:id="@+id/cloud_selection_delete"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/cloud_selection_delete"
+            android:padding="11dp"
+            android:src="@drawable/ic_cloud_delete"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/cloud_selection_more"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <androidx.appcompat.widget.AppCompatImageButton
+            android:id="@+id/cloud_selection_more"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/cloud_selection_more"
+            android:padding="11dp"
+            android:src="@drawable/ic_cloud_more_vert"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
    <FrameLayout
        android:id="@+id/cloud_content"
        android:layout_width="0dp"
@@ -12,6 +12,7 @@
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:contentDescription="@null"
+        android:importantForAccessibility="no"
        android:scaleType="centerCrop" />

    <ImageView
@@ -23,5 +24,25 @@
        android:background="@drawable/cloud_card_background"
        android:padding="5dp"
        android:src="@drawable/ic_play_arrow"
+        android:importantForAccessibility="no"
+        android:visibility="gone" />
+
+    <View
+        android:id="@+id/cloud_media_selection_scrim"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/cloud_media_selection_scrim"
+        android:visibility="gone" />
+
+    <ImageView
+        android:id="@+id/cloud_media_selection_check"
+        android:layout_width="30dp"
+        android:layout_height="30dp"
+        android:layout_gravity="top|end"
+        android:layout_margin="8dp"
+        android:background="@drawable/cloud_media_selection_badge"
+        android:contentDescription="@string/cloud_selection_selected"
+        android:padding="5dp"
+        android:src="@drawable/ic_cloud_check"
        android:visibility="gone" />
 </eu.qsfera.android.presentation.security.passcode.SquareFrameLayout>
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@drawable/cloud_sheet_background"
+    android:orientation="vertical"
+    android:paddingStart="18dp"
+    android:paddingTop="12dp"
+    android:paddingEnd="18dp"
+    android:paddingBottom="28dp">
+
+    <View
+        android:layout_width="40dp"
+        android:layout_height="4dp"
+        android:layout_gravity="center_horizontal"
+        android:layout_marginBottom="14dp"
+        android:background="@drawable/cloud_sheet_handle" />
+
+    <TextView
+        android:id="@+id/cloud_media_actions_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingHorizontal="8dp"
+        android:paddingBottom="8dp"
+        android:textColor="@color/qsfera_text_primary"
+        android:textSize="24sp"
+        android:textStyle="bold" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/cloud_media_action_send"
+            style="@style/CloudSheetTile"
+            android:text="@string/cloud_selection_send"
+            app:drawableTopCompat="@drawable/ic_share_generic_black" />
+
+        <TextView
+            android:id="@+id/cloud_media_action_select_all"
+            style="@style/CloudSheetTile"
+            android:text="@string/cloud_selection_select_all"
+            app:drawableTopCompat="@drawable/ic_select_all" />
+
+        <TextView
+            android:id="@+id/cloud_media_action_delete"
+            style="@style/CloudSheetTile"
+            android:text="@string/cloud_selection_delete"
+            app:drawableTopCompat="@drawable/ic_action_delete_grey" />
+    </LinearLayout>
+</LinearLayout>
@@ -78,4 +78,24 @@
    <string name="cloud_files_load_error">Не удалось загрузить файлы</string>
    <string name="cloud_files_cached">Не удалось обновить данные по сети. Показаны сохранённые файлы.</string>
    <string name="cloud_profile_automatic_uploads">Автозагрузка</string>
+    <string name="cloud_selection_selected">Выбрано</string>
+    <string name="cloud_selection_close">Закрыть выбор</string>
+    <string name="cloud_selection_send">Отправить</string>
+    <string name="cloud_selection_delete">Удалить</string>
+    <string name="cloud_selection_more">Другие действия</string>
+    <string name="cloud_selection_select_all">Выбрать все</string>
+    <string name="cloud_selection_preparing">Подготавливаем файлы…</string>
+    <string name="cloud_selection_share_error">Не удалось подготовить выбранные файлы</string>
+    <plurals name="cloud_selection_delete_confirm">
+        <item quantity="one">Удалить %1$d выбранный файл из КуСферы?</item>
+        <item quantity="few">Удалить %1$d выбранных файла из КуСферы?</item>
+        <item quantity="many">Удалить %1$d выбранных файлов из КуСферы?</item>
+        <item quantity="other">Удалить %1$d выбранных файла из КуСферы?</item>
+    </plurals>
+    <string name="cloud_selection_delete_success">Выбранные файлы удалены</string>
+    <string name="cloud_selection_delete_error">Часть файлов удалить не удалось. Список обновлён.</string>
+    <string name="cloud_file_open_error">Нет приложения, которое может открыть этот файл</string>
+    <string name="cloud_files_offline_title">Офлайн</string>
+    <string name="cloud_files_shares_title">Ссылки</string>
+    <string name="cloud_files_spaces_title">Пространства</string>
 </resources>
@@ -70,4 +70,22 @@
    <string name="cloud_files_load_error">Could not load files</string>
    <string name="cloud_files_cached">Network refresh failed. Showing saved files.</string>
    <string name="cloud_profile_automatic_uploads">Automatic uploads</string>
+    <string name="cloud_selection_selected">Selected</string>
+    <string name="cloud_selection_close">Close selection</string>
+    <string name="cloud_selection_send">Send</string>
+    <string name="cloud_selection_delete">Delete</string>
+    <string name="cloud_selection_more">More actions</string>
+    <string name="cloud_selection_select_all">Select all</string>
+    <string name="cloud_selection_preparing">Preparing files…</string>
+    <string name="cloud_selection_share_error">Could not prepare the selected files</string>
+    <plurals name="cloud_selection_delete_confirm">
+        <item quantity="one">Delete %1$d selected file from КуСфера?</item>
+        <item quantity="other">Delete %1$d selected files from КуСфера?</item>
+    </plurals>
+    <string name="cloud_selection_delete_success">Selected files deleted</string>
+    <string name="cloud_selection_delete_error">Some files could not be deleted. The list has been refreshed.</string>
+    <string name="cloud_file_open_error">No app could open this file</string>
+    <string name="cloud_files_offline_title">Offline</string>
+    <string name="cloud_files_shares_title">Shared links</string>
+    <string name="cloud_files_spaces_title">Spaces</string>
 </resources>
@@ -64,6 +64,7 @@
    <!-- special transparent_cloud action bar colors for image preview -->
    <color name="qsfera_petrol_transparent">#20396676</color>
    <color name="qsfera_petrol_dark_transparent">#4021434F</color>
+    <color name="cloud_media_selection_scrim">#4D4B7BEC</color>

    <!-- Multiselect backgrounds -->
    <color name="selected_item_background">#ECECEC</color>
@@ -0,0 +1,54 @@
+/**
+ * qsfera Android client application
+ *
+ * Copyright (C) 2026 QSfera.
+ */
+package eu.qsfera.android.presentation.cloud
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class CloudMediaSelectionTest {
+
+    @Test
+    fun `toggle selects and deselects the same media`() {
+        val selection = CloudMediaSelection()
+        val media = media("/Camera/photo.jpg")
+
+        assertTrue(selection.toggle(media))
+        assertTrue(selection.contains(media))
+        assertFalse(selection.toggle(media))
+        assertTrue(selection.isEmpty)
+    }
+
+    @Test
+    fun `same path in different spaces remains independently selectable`() {
+        val first = media("/Camera/photo.jpg", spaceId = "personal")
+        val second = media("/Camera/photo.jpg", spaceId = "project")
+        val selection = CloudMediaSelection(listOf(first, second))
+
+        assertEquals(2, selection.size)
+        assertEquals(listOf(first, second), selection.items)
+    }
+
+    @Test
+    fun `select all keeps existing order and ignores duplicates`() {
+        val first = media("/Camera/one.jpg")
+        val second = media("/Camera/two.jpg")
+        val selection = CloudMediaSelection(listOf(first))
+
+        selection.selectAll(listOf(first, second, second))
+
+        assertEquals(listOf(first, second), selection.items)
+    }
+
+    private fun media(path: String, spaceId: String? = null) = CloudMediaItem(
+        remotePath = path,
+        mimeType = "image/jpeg",
+        size = 1L,
+        modifiedAt = 1L,
+        spaceId = spaceId,
+    )
+}