[SES-2018] Refactor mention (#1510)

* Refactor mention

* Fixes robolectric test problem

* Fixes tests

* Naming and comments

* Naming

* Dispatcher

---------

Co-authored-by: fanchao <git@fanchao.dev>

app/build.gradle

@@ -368,8 +368,11 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-idling-resource:3.5.1'
     androidTestUtil 'androidx.test:orchestrator:1.4.2'
 
-    testImplementation 'org.robolectric:robolectric:4.4'
+    testImplementation 'org.robolectric:robolectric:4.12.2'
-    testImplementation 'org.robolectric:shadows-multidex:4.4'
+    testImplementation 'org.robolectric:shadows-multidex:4.12.2'
+    testImplementation 'org.conscrypt:conscrypt-openjdk-uber:2.5.2' // For Robolectric
+    testImplementation 'app.cash.turbine:turbine:1.1.0'
+
 
     implementation 'com.github.bumptech.glide:compose:1.0.0-alpha.5'
     implementation 'androidx.compose.ui:ui:1.5.2'

app/src/main/java/org/thoughtcrime/securesms/contacts/UserView.kt

@@ -7,10 +7,8 @@ import android.view.View
 import android.widget.LinearLayout
 import network.loki.messenger.R
 import network.loki.messenger.databinding.ViewUserBinding
-import org.session.libsession.messaging.MessagingModuleConfiguration
 import org.session.libsession.messaging.contacts.Contact
 import org.session.libsession.utilities.recipients.Recipient
-import org.thoughtcrime.securesms.conversation.v2.utilities.MentionManagerUtilities
 import org.thoughtcrime.securesms.dependencies.DatabaseComponent
 import org.thoughtcrime.securesms.mms.GlideRequests
 

app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationActionBarView.kt

@@ -21,7 +21,6 @@ import org.session.libsession.messaging.open_groups.OpenGroup
 import org.session.libsession.utilities.ExpirationUtil
 import org.session.libsession.utilities.modifyLayoutParams
 import org.session.libsession.utilities.recipients.Recipient
-import org.thoughtcrime.securesms.conversation.v2.utilities.MentionManagerUtilities
 import org.thoughtcrime.securesms.database.GroupDatabase
 import org.thoughtcrime.securesms.database.LokiAPIDatabase
 import org.thoughtcrime.securesms.util.DateUtils
@@ -78,7 +77,6 @@ class ConversationActionBarView @JvmOverloads constructor(
         binding.profilePictureView.layoutParams = resources.getDimensionPixelSize(
             if (recipient.isClosedGroupRecipient) R.dimen.medium_profile_picture_size else R.dimen.small_profile_picture_size
         ).let { LayoutParams(it, it) }
-        MentionManagerUtilities.populateUserPublicKeyCacheIfNeeded(threadId, context)
         update(recipient, openGroup, config)
     }
 

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt

@@ -29,8 +29,8 @@ import android.view.Menu
 import android.view.MenuItem
 import android.view.MotionEvent
 import android.view.View
+import android.view.ViewGroup.LayoutParams
 import android.view.WindowManager
-import android.widget.RelativeLayout
 import android.widget.Toast
 import androidx.activity.result.ActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
@@ -46,6 +46,7 @@ import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.flowWithLifecycle
 import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import androidx.loader.app.LoaderManager
 import androidx.loader.content.Loader
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -67,8 +68,6 @@ import org.session.libsession.messaging.MessagingModuleConfiguration
 import org.session.libsession.messaging.contacts.Contact
 import org.session.libsession.messaging.jobs.AttachmentDownloadJob
 import org.session.libsession.messaging.jobs.JobQueue
-import org.session.libsession.messaging.mentions.Mention
-import org.session.libsession.messaging.mentions.MentionsManager
 import org.session.libsession.messaging.messages.ExpirationConfiguration
 import org.session.libsession.messaging.messages.applyExpiryMode
 import org.session.libsession.messaging.messages.control.DataExtractionNotification
@@ -118,7 +117,8 @@ import org.thoughtcrime.securesms.conversation.v2.dialogs.SendSeedDialog
 import org.thoughtcrime.securesms.conversation.v2.input_bar.InputBarButton
 import org.thoughtcrime.securesms.conversation.v2.input_bar.InputBarDelegate
 import org.thoughtcrime.securesms.conversation.v2.input_bar.InputBarRecordingViewDelegate
-import org.thoughtcrime.securesms.conversation.v2.input_bar.mentions.MentionCandidatesView
+import org.thoughtcrime.securesms.conversation.v2.input_bar.mentions.MentionCandidateAdapter
+import org.thoughtcrime.securesms.conversation.v2.mention.MentionViewModel
 import org.thoughtcrime.securesms.conversation.v2.menus.ConversationActionModeCallback
 import org.thoughtcrime.securesms.conversation.v2.menus.ConversationActionModeCallbackDelegate
 import org.thoughtcrime.securesms.conversation.v2.menus.ConversationMenuHelper
@@ -215,6 +215,7 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
     @Inject lateinit var storage: Storage
     @Inject lateinit var reactionDb: ReactionDatabase
     @Inject lateinit var viewModelFactory: ConversationViewModel.AssistedFactory
+    @Inject lateinit var mentionViewModelFactory: MentionViewModel.AssistedFactory
 
     private val screenshotObserver by lazy {
         ScreenshotObserver(this, Handler(Looper.getMainLooper())) {
@@ -228,7 +229,8 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         ViewModelProvider(this, LinkPreviewViewModel.Factory(LinkPreviewRepository()))
             .get(LinkPreviewViewModel::class.java)
     }
-    private val viewModel: ConversationViewModel by viewModels {
+
+    private val threadId: Long by lazy {
         var threadId = intent.getLongExtra(THREAD_ID, -1L)
         if (threadId == -1L) {
             intent.getParcelableExtra<Address>(ADDRESS)?.let { it ->
@@ -248,6 +250,11 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
                 }
             } ?: finish()
         }
+
+        threadId
+    }
+
+    private val viewModel: ConversationViewModel by viewModels {
         viewModelFactory.create(threadId, MessagingModuleConfiguration.shared.getUserED25519KeyPair())
     }
     private var actionMode: ActionMode? = null
@@ -260,11 +267,12 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
     private var isLockViewExpanded = false
     private var isShowingAttachmentOptions = false
     // Mentions
-    private val mentions = mutableListOf<Mention>()
+    private val mentionViewModel: MentionViewModel by viewModels {
-    private var mentionCandidatesView: MentionCandidatesView? = null
+        mentionViewModelFactory.create(threadId)
-    private var previousText: CharSequence = ""
+    }
-    private var currentMentionStartIndex = -1
+    private val mentionCandidateAdapter = MentionCandidateAdapter {
-    private var isShowingMentionCandidatesView = false
+        mentionViewModel.onCandidateSelected(it.member.publicKey)
+    }
     // Search
     val searchViewModel: SearchViewModel by viewModels()
     var searchViewItem: MenuItem? = null
@@ -486,6 +494,27 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
                         }
                     }
         }
+
+        setupMentionView()
+    }
+
+    private fun setupMentionView() {
+        binding?.conversationMentionCandidates?.let { view ->
+            view.adapter = mentionCandidateAdapter
+            view.itemAnimator = null
+        }
+
+        lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
+                mentionViewModel.autoCompleteState
+                    .collectLatest { state ->
+                        mentionCandidateAdapter.candidates =
+                            (state as? MentionViewModel.AutoCompleteState.Result)?.members.orEmpty()
+                    }
+            }
+        }
+
+        binding?.inputBar?.setInputBarEditableFactory(mentionViewModel.editableFactory)
     }
 
     override fun onResume() {
@@ -642,23 +671,19 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         binding.inputBar.delegate = this
         binding.inputBarRecordingView.delegate = this
         // GIF button
-        binding.gifButtonContainer.addView(gifButton)
+        binding.gifButtonContainer.addView(gifButton, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)
-        gifButton.layoutParams = RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT)
         gifButton.onUp = { showGIFPicker() }
         gifButton.snIsEnabled = false
         // Document button
-        binding.documentButtonContainer.addView(documentButton)
+        binding.documentButtonContainer.addView(documentButton, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)
-        documentButton.layoutParams = RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT)
         documentButton.onUp = { showDocumentPicker() }
         documentButton.snIsEnabled = false
         // Library button
-        binding.libraryButtonContainer.addView(libraryButton)
+        binding.libraryButtonContainer.addView(libraryButton, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)
-        libraryButton.layoutParams = RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT)
         libraryButton.onUp = { pickFromLibrary() }
         libraryButton.snIsEnabled = false
         // Camera button
-        binding.cameraButtonContainer.addView(cameraButton)
+        binding.cameraButtonContainer.addView(cameraButton, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)
-        cameraButton.layoutParams = RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT)
         cameraButton.onUp = { showCamera() }
         cameraButton.snIsEnabled = false
     }
@@ -913,7 +938,6 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         if (textSecurePreferences.isLinkPreviewsEnabled()) {
             linkPreviewViewModel.onTextChanged(this, inputBarText, 0, 0)
         }
-        showOrHideMentionCandidatesIfNeeded(newContent)
         if (LinkPreviewUtil.findWhitelistedUrls(newContent.toString()).isNotEmpty()
             && !textSecurePreferences.isLinkPreviewsEnabled() && !textSecurePreferences.hasSeenLinkPreviewSuggestionDialog()) {
             LinkPreviewDialog {
@@ -925,76 +949,6 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         }
     }
 
-    private fun showOrHideMentionCandidatesIfNeeded(text: CharSequence) {
-        if (text.length < previousText.length) {
-            currentMentionStartIndex = -1
-            hideMentionCandidates()
-            val mentionsToRemove = mentions.filter { !text.contains(it.displayName) }
-            mentions.removeAll(mentionsToRemove)
-        }
-        if (text.isNotEmpty()) {
-            val lastCharIndex = text.lastIndex
-            val lastChar = text[lastCharIndex]
-            // Check if there is whitespace before the '@' or the '@' is the first character
-            val isCharacterBeforeLastWhiteSpaceOrStartOfLine: Boolean
-            if (text.length == 1) {
-                isCharacterBeforeLastWhiteSpaceOrStartOfLine = true // Start of line
-            } else {
-                val charBeforeLast = text[lastCharIndex - 1]
-                isCharacterBeforeLastWhiteSpaceOrStartOfLine = Character.isWhitespace(charBeforeLast)
-            }
-            if (lastChar == '@' && isCharacterBeforeLastWhiteSpaceOrStartOfLine) {
-                currentMentionStartIndex = lastCharIndex
-                showOrUpdateMentionCandidatesIfNeeded()
-            } else if (Character.isWhitespace(lastChar) || lastChar == '@') { // the lastCharacter == "@" is to check for @@
-                currentMentionStartIndex = -1
-                hideMentionCandidates()
-            } else if (currentMentionStartIndex != -1) {
-                val query = text.substring(currentMentionStartIndex + 1) // + 1 to get rid of the "@"
-                showOrUpdateMentionCandidatesIfNeeded(query)
-            }
-        } else {
-            currentMentionStartIndex = -1
-            hideMentionCandidates()
-        }
-        previousText = text
-    }
-
-    private fun showOrUpdateMentionCandidatesIfNeeded(query: String = "") {
-        val additionalContentContainer = binding?.additionalContentContainer ?: return
-        val recipient = viewModel.recipient ?: return
-        if (!isShowingMentionCandidatesView) {
-            additionalContentContainer.removeAllViews()
-            val view = MentionCandidatesView(this).apply {
-                contentDescription = context.getString(R.string.AccessibilityId_mentions_list)
-            }
-            view.glide = glide
-            view.onCandidateSelected = { handleMentionSelected(it) }
-            additionalContentContainer.addView(view)
-            val candidates = MentionsManager.getMentionCandidates(query, viewModel.threadId, recipient.isCommunityRecipient)
-            this.mentionCandidatesView = view
-            view.show(candidates, viewModel.threadId)
-        } else {
-            val candidates = MentionsManager.getMentionCandidates(query, viewModel.threadId, recipient.isCommunityRecipient)
-            this.mentionCandidatesView!!.setMentionCandidates(candidates)
-        }
-        isShowingMentionCandidatesView = true
-    }
-
-    private fun hideMentionCandidates() {
-        if (isShowingMentionCandidatesView) {
-            val mentionCandidatesView = mentionCandidatesView ?: return
-            val animation = ValueAnimator.ofObject(FloatEvaluator(), mentionCandidatesView.alpha, 0.0f)
-            animation.duration = 250L
-            animation.addUpdateListener { animator ->
-                mentionCandidatesView.alpha = animator.animatedValue as Float
-                if (animator.animatedFraction == 1.0f) { binding?.additionalContentContainer?.removeAllViews() }
-            }
-            animation.start()
-        }
-        isShowingMentionCandidatesView = false
-    }
-
     override fun toggleAttachmentOptions() {
         val targetAlpha = if (isShowingAttachmentOptions) 0.0f else 1.0f
         val allButtonContainers = listOfNotNull(
@@ -1510,18 +1464,6 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         return hitRect.contains(x, y)
     }
 
-    private fun handleMentionSelected(mention: Mention) {
-        val binding = binding ?: return
-        if (currentMentionStartIndex == -1) { return }
-        mentions.add(mention)
-        val previousText = binding.inputBar.text
-        val newText = previousText.substring(0, currentMentionStartIndex) + "@" + mention.displayName + " "
-        binding.inputBar.text = newText
-        binding.inputBar.setSelection(newText.length)
-        currentMentionStartIndex = -1
-        hideMentionCandidates()
-        this.previousText = newText
-    }
 
     override fun scrollToMessageIfPossible(timestamp: Long) {
         val lastSeenItemPosition = adapter.getItemPositionForTimestamp(timestamp) ?: return
@@ -1620,10 +1562,6 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         binding?.inputBar?.text = ""
         binding?.inputBar?.cancelQuoteDraft()
         binding?.inputBar?.cancelLinkPreviewDraft()
-        // Clear mentions
-        previousText = ""
-        currentMentionStartIndex = -1
-        mentions.clear()
         // Put the message in the database
         message.id = smsDb.insertMessageOutbox(viewModel.threadId, outgoingTextMessage, false, message.sentTimestamp!!, null, true)
         // Send it
@@ -1668,10 +1606,6 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         binding?.inputBar?.text = ""
         binding?.inputBar?.cancelQuoteDraft()
         binding?.inputBar?.cancelLinkPreviewDraft()
-        // Clear mentions
-        previousText = ""
-        currentMentionStartIndex = -1
-        mentions.clear()
         // Reset the attachment manager
         attachmentManager.clear()
         // Reset attachments button if needed
@@ -2105,17 +2039,7 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
 
     // region General
     private fun getMessageBody(): String {
-        var result = binding?.inputBar?.text?.trim() ?: return ""
+        return mentionViewModel.normalizeMessageBody()
-        for (mention in mentions) {
-            try {
-                val startIndex = result.indexOf("@" + mention.displayName)
-                val endIndex = startIndex + mention.displayName.count() + 1 // + 1 to include the "@"
-                result = result.substring(0, startIndex) + "@" + mention.publicKey + result.substring(endIndex)
-            } catch (exception: Exception) {
-                Log.d("Loki", "Failed to process mention due to error: $exception")
-            }
-        }
-        return result
     }
     // endregion
 

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/input_bar/InputBar.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import android.content.res.Resources
 import android.graphics.PointF
 import android.net.Uri
+import android.text.Editable
 import android.text.InputType
 import android.text.TextWatcher
 import android.util.AttributeSet
@@ -224,8 +225,8 @@ class InputBar : RelativeLayout, InputBarEditTextDelegate, QuoteViewDelegate, Li
         binding.inputBarEditText.addTextChangedListener(textWatcher)
     }
 
-    fun setSelection(index: Int) {
+    fun setInputBarEditableFactory(factory: Editable.Factory) {
-        binding.inputBarEditText.setSelection(index)
+        binding.inputBarEditText.setEditableFactory(factory)
     }
     // endregion
 }

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/input_bar/mentions/MentionCandidateAdapter.kt

@@ -0,0 +1,44 @@
+package org.thoughtcrime.securesms.conversation.v2.input_bar.mentions
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.RecyclerView
+import network.loki.messenger.databinding.ViewMentionCandidateV2Binding
+import org.thoughtcrime.securesms.conversation.v2.mention.MentionViewModel
+
+class MentionCandidateAdapter(
+    private val onCandidateSelected: ((MentionViewModel.Candidate) -> Unit)
+) : RecyclerView.Adapter<MentionCandidateAdapter.ViewHolder>() {
+    var candidates = listOf<MentionViewModel.Candidate>()
+        set(newValue) {
+            if (field != newValue) {
+                val result = DiffUtil.calculateDiff(object  : DiffUtil.Callback() {
+                    override fun getOldListSize() = field.size
+                    override fun getNewListSize() = newValue.size
+                    override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int)
+                        = field[oldItemPosition].member.publicKey == newValue[newItemPosition].member.publicKey
+                    override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int)
+                        = field[oldItemPosition] == newValue[newItemPosition]
+                })
+
+                field = newValue
+                result.dispatchUpdatesTo(this)
+            }
+        }
+
+    class ViewHolder(val binding: ViewMentionCandidateV2Binding)
+        : RecyclerView.ViewHolder(binding.root)
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return ViewHolder(ViewMentionCandidateV2Binding.inflate(LayoutInflater.from(parent.context), parent, false))
+    }
+
+    override fun getItemCount(): Int = candidates.size
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val candidate = candidates[position]
+        holder.binding.update(candidate)
+        holder.binding.root.setOnClickListener { onCandidateSelected(candidate) }
+    }
+}

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/input_bar/mentions/MentionCandidateView.kt

@@ -1,42 +1,14 @@
 package org.thoughtcrime.securesms.conversation.v2.input_bar.mentions
 
-import android.content.Context
-import android.util.AttributeSet
-import android.view.LayoutInflater
 import android.view.View
-import android.widget.RelativeLayout
 import network.loki.messenger.databinding.ViewMentionCandidateV2Binding
-import org.session.libsession.messaging.mentions.Mention
+import org.thoughtcrime.securesms.conversation.v2.mention.MentionViewModel
-import org.thoughtcrime.securesms.groups.OpenGroupManager
-import org.thoughtcrime.securesms.mms.GlideRequests
 
-class MentionCandidateView : RelativeLayout {
+fun ViewMentionCandidateV2Binding.update(candidate: MentionViewModel.Candidate) {
-    private lateinit var binding: ViewMentionCandidateV2Binding
+    mentionCandidateNameTextView.text = candidate.nameHighlighted
-    var candidate = Mention("", "")
+    profilePictureView.publicKey = candidate.member.publicKey
-        set(newValue) { field = newValue; update() }
+    profilePictureView.displayName = candidate.member.name
-    var glide: GlideRequests? = null
+    profilePictureView.additionalPublicKey = null
-    var openGroupServer: String? = null
+    profilePictureView.update()
-    var openGroupRoom: String? = null
+    moderatorIconImageView.visibility = if (candidate.member.isModerator) View.VISIBLE else View.GONE
-
+}
-    constructor(context: Context) : this(context, null)
-    constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
-    constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) { initialize() }
-
-    private fun initialize() {
-        binding = ViewMentionCandidateV2Binding.inflate(LayoutInflater.from(context), this, true)
-    }
-
-    private fun update() = with(binding) {
-        mentionCandidateNameTextView.text = candidate.displayName
-        profilePictureView.publicKey = candidate.publicKey
-        profilePictureView.displayName = candidate.displayName
-        profilePictureView.additionalPublicKey = null
-        profilePictureView.update()
-        if (openGroupServer != null && openGroupRoom != null) {
-            val isUserModerator = OpenGroupManager.isUserModerator(context, "$openGroupRoom.$openGroupServer", candidate.publicKey)
-            moderatorIconImageView.visibility = if (isUserModerator) View.VISIBLE else View.GONE
-        } else {
-            moderatorIconImageView.visibility = View.GONE
-        }
-    }
-}

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/input_bar/mentions/MentionCandidatesView.kt

@@ -1,90 +0,0 @@
-package org.thoughtcrime.securesms.conversation.v2.input_bar.mentions
-
-import android.content.Context
-import android.util.AttributeSet
-import android.view.View
-import android.view.ViewGroup
-import android.widget.BaseAdapter
-import android.widget.ListView
-import dagger.hilt.android.AndroidEntryPoint
-import network.loki.messenger.R
-import org.session.libsession.messaging.mentions.Mention
-import org.thoughtcrime.securesms.database.LokiThreadDatabase
-import org.thoughtcrime.securesms.mms.GlideRequests
-import org.thoughtcrime.securesms.util.toPx
-import javax.inject.Inject
-
-@AndroidEntryPoint
-class MentionCandidatesView(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : ListView(context, attrs, defStyleAttr) {
-    private var candidates = listOf<Mention>()
-        set(newValue) { field = newValue; snAdapter.candidates = newValue }
-    var glide: GlideRequests? = null
-        set(newValue) { field = newValue; snAdapter.glide = newValue }
-    var openGroupServer: String? = null
-        set(newValue) { field = newValue; snAdapter.openGroupServer = openGroupServer }
-    var openGroupRoom: String? = null
-        set(newValue) { field = newValue; snAdapter.openGroupRoom = openGroupRoom }
-    var onCandidateSelected: ((Mention) -> Unit)? = null
-
-    @Inject lateinit var threadDb: LokiThreadDatabase
-
-    private val snAdapter by lazy { Adapter(context) }
-
-    private class Adapter(private val context: Context) : BaseAdapter() {
-        var candidates = listOf<Mention>()
-            set(newValue) { field = newValue; notifyDataSetChanged() }
-        var glide: GlideRequests? = null
-        var openGroupServer: String? = null
-        var openGroupRoom: String? = null
-
-        override fun getCount(): Int { return candidates.count() }
-        override fun getItemId(position: Int): Long { return position.toLong() }
-        override fun getItem(position: Int): Mention { return candidates[position] }
-
-        override fun getView(position: Int, cellToBeReused: View?, parent: ViewGroup): View {
-            val cell = cellToBeReused as MentionCandidateView? ?: MentionCandidateView(context).apply {
-                contentDescription = context.getString(R.string.AccessibilityId_contact)
-            }
-            val mentionCandidate = getItem(position)
-            cell.glide = glide
-            cell.candidate = mentionCandidate
-            cell.openGroupServer = openGroupServer
-            cell.openGroupRoom = openGroupRoom
-            return cell
-        }
-    }
-
-    constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
-    constructor(context: Context) : this(context, null)
-
-    init {
-        clipToOutline = true
-        adapter = snAdapter
-        snAdapter.candidates = candidates
-        setOnItemClickListener { _, _, position, _ ->
-            onCandidateSelected?.invoke(candidates[position])
-        }
-    }
-
-    fun show(candidates: List<Mention>, threadID: Long) {
-        val openGroup = threadDb.getOpenGroupChat(threadID)
-        if (openGroup != null) {
-            openGroupServer = openGroup.server
-            openGroupRoom = openGroup.room
-        }
-        setMentionCandidates(candidates)
-    }
-
-    fun setMentionCandidates(candidates: List<Mention>) {
-        this.candidates = candidates
-        val layoutParams = this.layoutParams as ViewGroup.LayoutParams
-        layoutParams.height = toPx(Math.min(candidates.count(), 4) * 44, resources)
-        this.layoutParams = layoutParams
-    }
-
-    fun hide() {
-        val layoutParams = this.layoutParams as ViewGroup.LayoutParams
-        layoutParams.height = 0
-        this.layoutParams = layoutParams
-    }
-}

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/mention/MentionEditable.kt

@@ -0,0 +1,188 @@
+package org.thoughtcrime.securesms.conversation.v2.mention
+
+import android.text.Selection
+import android.text.SpannableStringBuilder
+import androidx.core.text.getSpans
+import kotlinx.coroutines.channels.BufferOverflow
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onStart
+
+private const val SEARCH_QUERY_DEBOUNCE_MILLS = 100L
+
+/**
+ * A subclass of [SpannableStringBuilder] that provides a way to observe the mention search query,
+ * and also manages the [MentionSpan] in a way that treats the mention span as a whole.
+ */
+class MentionEditable : SpannableStringBuilder() {
+    private val queryChangeNotification = MutableSharedFlow<Unit>(
+        extraBufferCapacity = 1,
+        onBufferOverflow = BufferOverflow.DROP_LATEST
+    )
+
+    fun observeMentionSearchQuery(): Flow<SearchQuery?> {
+        @Suppress("OPT_IN_USAGE")
+        return queryChangeNotification
+            .debounce(SEARCH_QUERY_DEBOUNCE_MILLS)
+            .onStart { emit(Unit) }
+            .map { mentionSearchQuery }
+            .distinctUntilChanged()
+    }
+
+    data class SearchQuery(
+        val mentionSymbolStartAt: Int,
+        val query: String
+    )
+
+    val mentionSearchQuery: SearchQuery?
+        get() {
+            val cursorPosition = Selection.getSelectionStart(this)
+
+            // First, make sure we are not selecting text
+            if (cursorPosition != Selection.getSelectionEnd(this)) {
+                return null
+            }
+
+            // Make sure we don't already have a mention span at the cursor position
+            if (getSpans(cursorPosition, cursorPosition, MentionSpan::class.java).isNotEmpty()) {
+                return null
+            }
+
+            // Find the mention symbol '@' before the cursor position
+            val symbolIndex = findEligibleMentionSymbolIndexBefore(cursorPosition - 1)
+            if (symbolIndex < 0) {
+                return null
+            }
+
+            // The query starts after the symbol '@' and ends at a whitespace, @ or the end
+            val queryStart = symbolIndex + 1
+            var queryEnd = indexOfStartingAt(queryStart) { it.isWhitespace() || it == '@' }
+            if (queryEnd < 0) {
+                queryEnd = length
+            }
+
+            return SearchQuery(
+                mentionSymbolStartAt = symbolIndex,
+                query = subSequence(queryStart, queryEnd).toString()
+            )
+        }
+
+    override fun setSpan(what: Any?, start: Int, end: Int, flags: Int) {
+        var normalisedStart = start
+        var normalisedEnd = end
+
+        val isSelectionStart = what == Selection.SELECTION_START
+        val isSelectionEnd = what == Selection.SELECTION_END
+
+        if (isSelectionStart || isSelectionEnd) {
+            assert(start == end) { "Selection spans must have zero length" }
+            val selection = start
+
+            val mentionSpan = getSpans<MentionSpan>(selection, selection).firstOrNull()
+            if (mentionSpan != null) {
+                val spanStart = getSpanStart(mentionSpan)
+                val spanEnd = getSpanEnd(mentionSpan)
+
+                if (isSelectionStart && selection != spanEnd) {
+                    // A selection start will only be adjusted to the start of the mention span,
+                    // if the selection start is not at the end the mention span. (A selection start
+                    // at the end of the mention span is considered an escape path from the mention span)
+                    normalisedStart = spanStart
+                    normalisedEnd = normalisedStart
+                } else if (isSelectionEnd && selection != spanStart) {
+                    normalisedEnd = spanEnd
+                    normalisedStart = normalisedEnd
+                }
+            }
+
+            queryChangeNotification.tryEmit(Unit)
+        }
+
+        super.setSpan(what, normalisedStart, normalisedEnd, flags)
+    }
+
+    override fun removeSpan(what: Any?) {
+        super.removeSpan(what)
+        queryChangeNotification.tryEmit(Unit)
+    }
+
+    // The only method we need to override
+    override fun replace(st: Int, en: Int, source: CharSequence?, start: Int, end: Int): MentionEditable {
+        // Make sure the mention span is treated like a whole
+        var normalisedStart = st
+        var normalisedEnd = en
+
+        if (st != en) {
+            // Find the mention span that intersects with the replaced range, and expand the range to include it,
+            // this does not apply to insertion operation (st == en)
+            for (mentionSpan in getSpans(st, en, MentionSpan::class.java)) {
+                val mentionStart = getSpanStart(mentionSpan)
+                val mentionEnd = getSpanEnd(mentionSpan)
+
+                if (mentionStart < normalisedStart) {
+                    normalisedStart = mentionStart
+                }
+                if (mentionEnd > normalisedEnd) {
+                    normalisedEnd = mentionEnd
+                }
+
+                removeSpan(mentionSpan)
+            }
+        }
+
+        super.replace(normalisedStart, normalisedEnd, source, start, end)
+        queryChangeNotification.tryEmit(Unit)
+        return this
+    }
+
+    fun addMention(member: MentionViewModel.Member, replaceRange: IntRange) {
+        val replaceWith = "@${member.name} "
+        replace(replaceRange.first, replaceRange.last, replaceWith)
+        setSpan(
+            MentionSpan(member),
+            replaceRange.first,
+            replaceRange.first + replaceWith.length - 1,
+            SPAN_EXCLUSIVE_EXCLUSIVE
+        )
+    }
+
+    override fun delete(st: Int, en: Int) = replace(st, en, "", 0, 0)
+
+    private fun findEligibleMentionSymbolIndexBefore(offset: Int): Int {
+        if (isEmpty()) {
+            return -1
+        }
+
+        var i = offset.coerceIn(indices)
+        while (i >= 0) {
+            val c = get(i)
+            if (c == '@') {
+                // Make sure there is no more '@' before this one or it's disqualified
+                if (i > 0 && get(i - 1) == '@') {
+                    return -1
+                }
+
+                return i
+            } else if (c.isWhitespace()) {
+                break
+            }
+            i--
+        }
+        return -1
+    }
+}
+
+private fun CharSequence.indexOfStartingAt(offset: Int, predicate: (Char) -> Boolean): Int {
+    var i = offset.coerceIn(0..length)
+    while (i < length) {
+        if (predicate(get(i))) {
+            return i
+        }
+        i++
+    }
+
+    return -1
+}

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/mention/MentionSpan.kt

@@ -0,0 +1,8 @@
+package org.thoughtcrime.securesms.conversation.v2.mention
+
+/**
+ * A span that represents a mention in the text.
+ */
+class MentionSpan(
+    val member: MentionViewModel.Member
+)

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/mention/MentionViewModel.kt

@@ -0,0 +1,274 @@
+package org.thoughtcrime.securesms.conversation.v2.mention
+
+import android.content.ContentResolver
+import android.graphics.Typeface
+import android.text.Editable
+import android.text.SpannableStringBuilder
+import android.text.Spanned
+import android.text.style.StyleSpan
+import androidx.core.text.getSpans
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedInject
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.mapLatest
+import kotlinx.coroutines.flow.onStart
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.withContext
+import org.session.libsession.messaging.contacts.Contact
+import org.thoughtcrime.securesms.database.DatabaseContentProviders.Conversation
+import org.thoughtcrime.securesms.database.GroupDatabase
+import org.thoughtcrime.securesms.database.GroupMemberDatabase
+import org.thoughtcrime.securesms.database.MmsDatabase
+import org.thoughtcrime.securesms.database.SessionContactDatabase
+import org.thoughtcrime.securesms.database.Storage
+import org.thoughtcrime.securesms.database.ThreadDatabase
+import org.thoughtcrime.securesms.util.observeChanges
+
+/**
+ * A ViewModel that provides the mention search functionality for a text input.
+ *
+ * To use this ViewModel, you (a view) will need to:
+ * 1. Observe the [autoCompleteState] to get the mention search results.
+ * 2. Set the EditText's editable factory to [editableFactory], via [android.widget.EditText.setEditableFactory]
+ */
+class MentionViewModel(
+    threadID: Long,
+    contentResolver: ContentResolver,
+    threadDatabase: ThreadDatabase,
+    groupDatabase: GroupDatabase,
+    mmsDatabase: MmsDatabase,
+    contactDatabase: SessionContactDatabase,
+    memberDatabase: GroupMemberDatabase,
+    storage: Storage,
+    dispatcher: CoroutineDispatcher = Dispatchers.IO,
+) : ViewModel() {
+    private val editable = MentionEditable()
+
+    /**
+     * A factory that creates a new [Editable] instance that is backed by the same source of truth
+     * used by this viewModel.
+     */
+    val editableFactory = object : Editable.Factory() {
+        override fun newEditable(source: CharSequence?): Editable {
+            if (source === editable) {
+                return source
+            }
+
+            if (source != null) {
+                editable.replace(0, editable.length, source)
+            }
+
+            return editable
+        }
+    }
+
+    @Suppress("OPT_IN_USAGE")
+    private val members: StateFlow<List<Member>?> =
+        (contentResolver.observeChanges(Conversation.getUriForThread(threadID)) as Flow<Any?>)
+            .debounce(500L)
+            .onStart { emit(Unit) }
+            .mapLatest {
+                val recipient = checkNotNull(threadDatabase.getRecipientForThreadId(threadID)) {
+                    "Recipient not found for thread ID: $threadID"
+                }
+
+                val memberIDs = when {
+                    recipient.isClosedGroupRecipient -> {
+                        groupDatabase.getGroupMemberAddresses(recipient.address.toGroupString(), false)
+                            .map { it.serialize() }
+                    }
+
+                    recipient.isCommunityRecipient -> mmsDatabase.getRecentChatMemberIDs(threadID, 20)
+                    recipient.isContactRecipient -> listOf(recipient.address.serialize())
+                    else -> listOf()
+                }
+
+                val moderatorIDs = if (recipient.isCommunityRecipient) {
+                    val groupId = storage.getOpenGroup(threadID)?.id
+                    if (groupId.isNullOrBlank()) {
+                        emptySet()
+                    } else {
+                        memberDatabase.getGroupMembersRoles(groupId, memberIDs)
+                            .mapNotNullTo(hashSetOf()) { (memberId, roles) ->
+                                memberId.takeIf { roles.any { it.isModerator } }
+                            }
+                    }
+                } else {
+                    emptySet()
+                }
+
+                val contactContext = if (recipient.isCommunityRecipient) {
+                    Contact.ContactContext.OPEN_GROUP
+                } else {
+                    Contact.ContactContext.REGULAR
+                }
+
+                contactDatabase.getContacts(memberIDs).map { contact ->
+                    Member(
+                        publicKey = contact.sessionID,
+                        name = contact.displayName(contactContext).orEmpty(),
+                        isModerator = contact.sessionID in moderatorIDs,
+                    )
+                }
+            }
+            .flowOn(dispatcher)
+            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(10_000L), null)
+
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    val autoCompleteState: StateFlow<AutoCompleteState> = editable
+        .observeMentionSearchQuery()
+        .flatMapLatest { query ->
+            if (query == null) {
+                return@flatMapLatest flowOf(AutoCompleteState.Idle)
+            }
+
+            members.mapLatest { members ->
+                if (members == null) {
+                    return@mapLatest AutoCompleteState.Loading
+                }
+
+                withContext(Dispatchers.Default) {
+                    val filtered = if (query.query.isBlank()) {
+                        members.mapTo(mutableListOf()) { Candidate(it, it.name, 0) }
+                    } else {
+                        members.mapNotNullTo(mutableListOf()) { searchAndHighlight(it, query.query) }
+                    }
+
+                    filtered.sortWith(Candidate.MENTION_LIST_COMPARATOR)
+                    AutoCompleteState.Result(filtered, query.query)
+                }
+            }
+        }
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(), AutoCompleteState.Idle)
+
+    private fun searchAndHighlight(
+        haystack: Member,
+        needle: String
+    ): Candidate? {
+        val startIndex = haystack.name.indexOf(needle, ignoreCase = true)
+
+        return if (startIndex >= 0) {
+            val endIndex = startIndex + needle.length
+            val spanned = SpannableStringBuilder(haystack.name)
+            spanned.setSpan(
+                StyleSpan(Typeface.BOLD),
+                startIndex,
+                endIndex,
+                Spanned.SPAN_INCLUSIVE_EXCLUSIVE
+            )
+            Candidate(member = haystack, nameHighlighted = spanned, matchScore = startIndex)
+        } else {
+            null
+        }
+    }
+
+    fun onCandidateSelected(candidatePublicKey: String) {
+        val query = editable.mentionSearchQuery ?: return
+        val autoCompleteState = autoCompleteState.value as? AutoCompleteState.Result ?: return
+        val candidate = autoCompleteState.members.find { it.member.publicKey == candidatePublicKey } ?: return
+
+        editable.addMention(
+            candidate.member,
+            query.mentionSymbolStartAt .. (query.mentionSymbolStartAt + query.query.length + 1)
+        )
+    }
+
+    /**
+     * Given a message body, normalize it by replacing the display name following '@' with their public key.
+     *
+     * As "@123456" is the standard format for mentioning a user, this method will replace "@Alice" with "@123456"
+     */
+    fun normalizeMessageBody(): String {
+        val spansWithRanges = editable.getSpans<MentionSpan>()
+            .mapTo(mutableListOf()) { span ->
+                span to (editable.getSpanStart(span)..editable.getSpanEnd(span))
+            }
+
+        spansWithRanges.sortBy { it.second.first }
+
+        val sb = StringBuilder()
+        var offset = 0
+        for ((span, range) in spansWithRanges) {
+            // Add content before the mention span
+            sb.append(editable, offset, range.first)
+
+            // Replace the mention span with "@public key"
+            sb.append('@').append(span.member.publicKey).append(' ')
+
+            offset = range.last + 1
+        }
+
+        // Add the remaining content
+        sb.append(editable, offset, editable.length)
+        return sb.toString()
+    }
+
+    data class Member(
+        val publicKey: String,
+        val name: String,
+        val isModerator: Boolean,
+    )
+
+    data class Candidate(
+        val member: Member,
+        // The name with the matching keyword highlighted.
+        val nameHighlighted: CharSequence,
+        // The score of matching the query keyword. Lower is better.
+        val matchScore: Int,
+    ) {
+        companion object {
+            val MENTION_LIST_COMPARATOR = compareBy<Candidate> { it.matchScore }
+                .then(compareBy { it.member.name })
+        }
+    }
+
+    sealed interface AutoCompleteState {
+        object Idle : AutoCompleteState
+        object Loading : AutoCompleteState
+        data class Result(val members: List<Candidate>, val query: String) : AutoCompleteState
+        object Error : AutoCompleteState
+    }
+
+    @dagger.assisted.AssistedFactory
+    interface AssistedFactory {
+        fun create(threadId: Long): Factory
+    }
+
+    class Factory @AssistedInject constructor(
+        @Assisted private val threadId: Long,
+        private val contentResolver: ContentResolver,
+        private val threadDatabase: ThreadDatabase,
+        private val groupDatabase: GroupDatabase,
+        private val mmsDatabase: MmsDatabase,
+        private val contactDatabase: SessionContactDatabase,
+        private val storage: Storage,
+        private val memberDatabase: GroupMemberDatabase,
+    ) : ViewModelProvider.Factory {
+        @Suppress("UNCHECKED_CAST")
+        override fun <T : ViewModel> create(modelClass: Class<T>): T {
+            return MentionViewModel(
+                threadID = threadId,
+                contentResolver = contentResolver,
+                threadDatabase = threadDatabase,
+                groupDatabase = groupDatabase,
+                mmsDatabase = mmsDatabase,
+                contactDatabase = contactDatabase,
+                memberDatabase = memberDatabase,
+                storage = storage,
+            ) as T
+        }
+    }
+}

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/utilities/MentionManagerUtilities.kt

@@ -1,34 +0,0 @@
-package org.thoughtcrime.securesms.conversation.v2.utilities
-
-import android.content.Context
-import org.session.libsession.messaging.mentions.MentionsManager
-import org.session.libsession.utilities.TextSecurePreferences
-import org.thoughtcrime.securesms.database.model.MessageRecord
-import org.thoughtcrime.securesms.dependencies.DatabaseComponent
-
-object MentionManagerUtilities {
-
-    fun populateUserPublicKeyCacheIfNeeded(threadID: Long, context: Context) {
-        val result = mutableSetOf<String>()
-        val recipient = DatabaseComponent.get(context).threadDatabase().getRecipientForThreadId(threadID) ?: return
-        if (recipient.address.isClosedGroup) {
-            val members = DatabaseComponent.get(context).groupDatabase().getGroupMembers(recipient.address.toGroupString(), false).map { it.address.serialize() }
-            result.addAll(members)
-        } else {
-            val messageDatabase = DatabaseComponent.get(context).mmsSmsDatabase()
-            val reader = messageDatabase.readerFor(messageDatabase.getConversation(threadID, true, 0, 200))
-            var record: MessageRecord? = reader.next
-            while (record != null) {
-                result.add(record.individualRecipient.address.serialize())
-                try {
-                    record = reader.next
-                } catch (exception: Exception) {
-                    record = null
-                }
-            }
-            reader.close()
-            result.add(TextSecurePreferences.getLocalNumber(context)!!)
-        }
-        MentionsManager.userPublicKeyCache[threadID] = result
-    }
-}

app/src/main/java/org/thoughtcrime/securesms/database/GroupMemberDatabase.kt

@@ -3,9 +3,12 @@ package org.thoughtcrime.securesms.database
 import android.content.ContentValues
 import android.content.Context
 import android.database.Cursor
+import org.json.JSONArray
 import org.session.libsession.messaging.open_groups.GroupMember
 import org.session.libsession.messaging.open_groups.GroupMemberRole
 import org.thoughtcrime.securesms.database.helpers.SQLCipherOpenHelper
+import org.thoughtcrime.securesms.util.asSequence
+import java.util.EnumSet
 
 class GroupMemberDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(context, helper) {
 
@@ -51,6 +54,19 @@ class GroupMemberDatabase(context: Context, helper: SQLCipherOpenHelper) : Datab
         return mappings.map { it.role }
     }
 
+    fun getGroupMembersRoles(groupId: String, memberIDs: Collection<String>): Map<String, List<GroupMemberRole>> {
+        val sql = """
+            SELECT * FROM $TABLE_NAME
+            WHERE $GROUP_ID = ? AND $PROFILE_ID IN (SELECT value FROM json_each(?))
+        """.trimIndent()
+
+        return readableDatabase.rawQuery(sql, groupId, JSONArray(memberIDs).toString()).use { cursor ->
+            cursor.asSequence()
+                .map { readGroupMember(it) }
+                .groupBy(keySelector = { it.profileId }, valueTransform = { it.role })
+        }
+    }
+
     fun setGroupMembers(members: List<GroupMember>) {
         writableDatabase.beginTransaction()
         try {

app/src/main/java/org/thoughtcrime/securesms/database/MmsDatabase.kt

@@ -218,6 +218,21 @@ class MmsDatabase(context: Context, databaseHelper: SQLCipherOpenHelper) : Messa
         return cursor
     }
 
+    fun getRecentChatMemberIDs(threadID: Long, limit: Int): List<String> {
+        val sql = """
+            SELECT DISTINCT $ADDRESS FROM $TABLE_NAME
+            WHERE $THREAD_ID = ?
+            ORDER BY $DATE_SENT DESC
+            LIMIT $limit
+        """.trimIndent()
+
+        return databaseHelper.readableDatabase.rawQuery(sql, threadID).use { cursor ->
+            cursor.asSequence()
+                .map { it.getString(0) }
+                .toList()
+        }
+    }
+
     val expireStartedMessages: Reader
         get() {
             val where = "$EXPIRE_STARTED > 0"

app/src/main/java/org/thoughtcrime/securesms/database/SessionContactDatabase.kt

@@ -4,6 +4,7 @@ import android.content.ContentValues
 import android.content.Context
 import android.database.Cursor
 import androidx.core.database.getStringOrNull
+import org.json.JSONArray
 import org.session.libsession.messaging.contacts.Contact
 import org.session.libsession.messaging.utilities.SessionId
 import org.session.libsignal.utilities.Base64
@@ -41,6 +42,15 @@ class SessionContactDatabase(context: Context, helper: SQLCipherOpenHelper) : Da
         }
     }
 
+    fun getContacts(sessionIDs: Collection<String>): List<Contact> {
+        val database = databaseHelper.readableDatabase
+        return database.getAll(
+            sessionContactTable,
+            "$sessionID IN (SELECT value FROM json_each(?))",
+            arrayOf(JSONArray(sessionIDs).toString())
+        ) { cursor -> contactFromCursor(cursor) }
+    }
+
     fun getAllContacts(): Set<Contact> {
         val database = databaseHelper.readableDatabase
         return database.getAll(sessionContactTable, null, null) { cursor ->

app/src/main/java/org/thoughtcrime/securesms/groups/OpenGroupManager.kt

@@ -162,13 +162,7 @@ object OpenGroupManager {
         val memberDatabase = DatabaseComponent.get(context).groupMemberDatabase()
         val standardRoles = memberDatabase.getGroupMemberRoles(groupId, standardPublicKey)
         val blindedRoles = blindedPublicKey?.let { memberDatabase.getGroupMemberRoles(groupId, it) } ?: emptyList()
-
+        return standardRoles.any { it.isModerator } || blindedRoles.any { it.isModerator }
-        // roles to check against
-        val moderatorRoles = listOf(
-            GroupMemberRole.MODERATOR, GroupMemberRole.ADMIN,
-            GroupMemberRole.HIDDEN_MODERATOR, GroupMemberRole.HIDDEN_ADMIN
-        )
-        return standardRoles.any { it in moderatorRoles } || blindedRoles.any { it in moderatorRoles }
     }
 
 }

app/src/main/java/org/thoughtcrime/securesms/notifications/DefaultMessageNotifier.java

@@ -56,7 +56,6 @@ import org.session.libsignal.utilities.Util;
 import org.thoughtcrime.securesms.ApplicationContext;
 import org.thoughtcrime.securesms.contacts.ContactUtil;
 import org.thoughtcrime.securesms.conversation.v2.ConversationActivityV2;
-import org.thoughtcrime.securesms.conversation.v2.utilities.MentionManagerUtilities;
 import org.thoughtcrime.securesms.conversation.v2.utilities.MentionUtilities;
 import org.thoughtcrime.securesms.crypto.KeyPairUtilities;
 import org.thoughtcrime.securesms.database.LokiThreadDatabase;
@@ -348,7 +347,6 @@ public class DefaultMessageNotifier implements MessageNotifier {
 
     builder.setThread(notifications.get(0).getRecipient());
     builder.setMessageCount(notificationState.getMessageCount());
-    MentionManagerUtilities.INSTANCE.populateUserPublicKeyCacheIfNeeded(notifications.get(0).getThreadId(),context);
 
     // TODO: Removing highlighting mentions in the notification because this context is the libsession one which
     // TODO: doesn't have access to the `R.attr.message_sent_text_color` and `R.attr.message_received_text_color`

app/src/main/res/layout/activity_conversation_v2.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
+<androidx.constraintlayout.widget.ConstraintLayout
     android:focusable="false"
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
@@ -13,6 +13,9 @@
         android:id="@+id/toolbar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toTopOf="@+id/conversationRecyclerView"
+        app:layout_constraintStart_toStartOf="parent"
         android:background="?colorPrimary"
         app:contentInsetStart="0dp">
 
@@ -31,9 +34,11 @@
         android:focusable="false"
         android:id="@+id/conversationRecyclerView"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="0dp"
-        android:layout_above="@+id/typingIndicatorViewContainer"
+        app:layout_constraintVertical_weight="1"
-        android:layout_below="@id/toolbar" />
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintBottom_toTopOf="@+id/typingIndicatorViewContainer"
+        app:layout_constraintTop_toBottomOf="@id/toolbar" />
 
 
     <org.thoughtcrime.securesms.conversation.v2.components.TypingIndicatorViewContainer
@@ -42,20 +47,27 @@
         android:layout_width="match_parent"
         android:layout_height="36dp"
         android:visibility="gone"
-        android:layout_above="@+id/textSendAfterApproval"
+        tools:visibility="visible"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/conversationRecyclerView"
+        app:layout_constraintBottom_toTopOf="@+id/textSendAfterApproval"
         />
 
     <org.thoughtcrime.securesms.conversation.v2.input_bar.InputBar
         android:id="@+id/inputBar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true" />
+        tools:layout_height="60dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/messageRequestBar"
+        app:layout_constraintBottom_toBottomOf="parent"
+        />
 
     <org.thoughtcrime.securesms.conversation.v2.search.SearchBottomBar
         android:id="@+id/searchBottomBar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
+        app:layout_constraintBottom_toBottomOf="parent"
         android:visibility="gone"/>
 
     <FrameLayout
@@ -75,11 +87,18 @@
         android:inflatedId="@+id/conversation_reaction_scrubber"
         android:layout="@layout/conversation_reaction_scrubber"/>
 
-    <FrameLayout
+    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/additionalContentContainer"
+        android:id="@+id/conversation_mention_candidates"
+        android:clipToOutline="true"
+        android:contentDescription="@string/AccessibilityId_mentions_list"
+        tools:listitem="@layout/view_mention_candidate_v2"
+        android:background="@drawable/mention_candidate_view_background"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_alignBottom="@+id/conversationRecyclerView"/>
+        tools:visibility="gone"
+        app:layout_constraintHeight_max="176dp"
+        app:layout_constraintBottom_toBottomOf="@+id/conversationRecyclerView" />
 
     <LinearLayout
         android:id="@+id/attachmentOptionsContainer"
@@ -87,19 +106,19 @@
         android:layout_height="wrap_content"
         android:layout_marginStart="@dimen/small_spacing"
         android:elevation="8dp"
-        android:layout_alignParentStart="true"
+        app:layout_constraintStart_toStartOf="parent"
-        android:layout_alignParentBottom="true"
+        app:layout_constraintBottom_toTopOf="@+id/inputBar"
-        android:layout_marginBottom="60dp"
+        android:layout_marginBottom="16dp"
         android:orientation="vertical">
 
-        <RelativeLayout
+        <FrameLayout
             android:id="@+id/gifButtonContainer"
             android:layout_width="@dimen/input_bar_button_expanded_size"
             android:layout_height="@dimen/input_bar_button_expanded_size"
             android:contentDescription="@string/AccessibilityId_gif_button"
             android:alpha="0" />
 
-        <RelativeLayout
+        <FrameLayout
             android:id="@+id/documentButtonContainer"
             android:layout_marginTop="8dp"
             android:layout_width="@dimen/input_bar_button_expanded_size"
@@ -107,7 +126,7 @@
             android:contentDescription="@string/AccessibilityId_documents_folder"
             android:alpha="0" />
 
-        <RelativeLayout
+        <FrameLayout
             android:id="@+id/libraryButtonContainer"
             android:layout_marginTop="8dp"
             android:layout_width="@dimen/input_bar_button_expanded_size"
@@ -115,7 +134,7 @@
             android:contentDescription="@string/AccessibilityId_images_folder"
             android:alpha="0" />
 
-        <RelativeLayout
+        <FrameLayout
             android:id="@+id/cameraButtonContainer"
             android:layout_marginTop="8dp"
             android:layout_width="@dimen/input_bar_button_expanded_size"
@@ -129,22 +148,26 @@
         android:id="@+id/textSendAfterApproval"
         android:text="@string/ConversationActivity_send_after_approval"
         android:visibility="gone"
+        tools:visibility="visible"
         android:textAlignment="center"
         android:textColor="@color/classic_light_2"
         android:padding="22dp"
         android:textSize="12sp"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_alignWithParentIfMissing="true"
+        tools:text="You'll be able to send"
-        android:layout_above="@id/messageRequestBar"/>
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/typingIndicatorViewContainer"
+        app:layout_constraintBottom_toTopOf="@+id/messageRequestBar" />
 
     <RelativeLayout
         android:id="@+id/scrollToBottomButton"
+        tools:visibility="visible"
         android:visibility="gone"
         android:layout_width="40dp"
         android:layout_height="50dp"
-        android:layout_alignParentEnd="true"
+        app:layout_constraintEnd_toEndOf="parent"
-        android:layout_above="@+id/messageRequestBar"
+        app:layout_constraintBottom_toTopOf="@+id/messageRequestBar"
         android:layout_alignWithParentIfMissing="true"
         android:layout_marginEnd="12dp"
         android:layout_marginBottom="32dp">
@@ -197,14 +220,14 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="-12dp"
         android:visibility="gone"
-        android:layout_alignParentBottom="true" />
+        app:layout_constraintBottom_toBottomOf="parent" />
 
-    <RelativeLayout
+    <FrameLayout
         android:id="@+id/blockedBanner"
         android:contentDescription="@string/AccessibilityId_blocked_banner"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/toolbar"
+        app:layout_constraintTop_toBottomOf="@+id/toolbar"
         android:background="@color/destructive"
         android:visibility="gone"
         tools:visibility="visible">
@@ -214,20 +237,20 @@
             android:contentDescription="@string/AccessibilityId_blocked_banner_text"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_centerInParent="true"
+            android:layout_gravity="center"
             android:layout_margin="@dimen/medium_spacing"
             android:textColor="@color/white"
             android:textSize="@dimen/small_font_size"
             android:textStyle="bold"
             tools:text="Elon is blocked. Unblock them?" />
 
-    </RelativeLayout>
+    </FrameLayout>
 
-    <RelativeLayout
+    <FrameLayout
         android:id="@+id/outdatedBanner"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/blockedBanner"
+        app:layout_constraintTop_toBottomOf="@+id/blockedBanner"
         android:background="@color/outdated_client_banner_background_color"
         android:visibility="gone"
         tools:visibility="visible">
@@ -237,14 +260,14 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:gravity="center_horizontal"
-            android:layout_centerInParent="true"
+            android:layout_gravity="center"
             android:layout_marginVertical="@dimen/very_small_spacing"
             android:layout_marginHorizontal="@dimen/medium_spacing"
             android:textColor="@color/black"
             android:textSize="@dimen/tiny_font_size"
             tools:text="This user's client is outdated, things may not work as expected" />
 
-    </RelativeLayout>
+    </FrameLayout>
 
     <TextView
         android:padding="@dimen/medium_spacing"
@@ -254,7 +277,7 @@
         android:id="@+id/placeholderText"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/blockedBanner"
+        app:layout_constraintTop_toBottomOf="@+id/outdatedBanner"
         android:elevation="8dp"
         tools:text="@string/activity_conversation_empty_state_default"
         />
@@ -263,11 +286,12 @@
         android:id="@+id/messageRequestBar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_above="@id/inputBar"
+        app:layout_constraintBottom_toTopOf="@+id/inputBar"
+        app:layout_constraintTop_toBottomOf="@+id/textSendAfterApproval"
         android:layout_marginBottom="@dimen/large_spacing"
         android:orientation="vertical"
         android:visibility="gone"
-        tools:visibility="visible">
+        tools:visibility="gone">
 
         <TextView
             android:id="@+id/messageRequestBlock"
@@ -321,4 +345,4 @@
 
     </LinearLayout>
 
-</RelativeLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/view_mention_candidate_v2.xml

@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="44dp"
-    android:background="@drawable/mention_candidate_view_background">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -42,6 +41,7 @@
             android:textSize="@dimen/small_font_size"
             android:textColor="?android:textColorPrimary"
             android:maxLines="1"
+            tools:text="Alice"
             android:contentDescription="@string/AccessibilityId_contact_mentions"
             android:ellipsize="end" />
 

app/src/test/java/org/thoughtcrime/securesms/conversation/v2/MentionEditableTest.kt

@@ -0,0 +1,115 @@
+package org.thoughtcrime.securesms.conversation.v2
+
+import android.text.Editable
+import android.text.Selection
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.thoughtcrime.securesms.conversation.v2.mention.MentionEditable
+import org.thoughtcrime.securesms.conversation.v2.mention.MentionViewModel
+
+@RunWith(RobolectricTestRunner::class)
+class MentionEditableTest {
+    private lateinit var mentionEditable: MentionEditable
+
+    @Before
+    fun setUp() {
+        mentionEditable = MentionEditable()
+    }
+
+    @Test
+    fun `should not have query when there is no 'at' symbol`() = runTest {
+        mentionEditable.observeMentionSearchQuery().test {
+            assertThat(awaitItem()).isNull()
+            mentionEditable.simulateTyping("Some text")
+            expectNoEvents()
+        }
+    }
+
+    @Test
+    fun `should have empty query after typing 'at' symbol`() = runTest {
+        mentionEditable.observeMentionSearchQuery().test {
+            assertThat(awaitItem()).isNull()
+
+            mentionEditable.simulateTyping("Some text")
+            expectNoEvents()
+
+            mentionEditable.simulateTyping("@")
+            assertThat(awaitItem())
+                .isEqualTo(MentionEditable.SearchQuery(9, ""))
+        }
+    }
+
+    @Test
+    fun `should have some query after typing words following 'at' symbol`() = runTest {
+        mentionEditable.observeMentionSearchQuery().test {
+            assertThat(awaitItem()).isNull()
+
+            mentionEditable.simulateTyping("Some text")
+            expectNoEvents()
+
+            mentionEditable.simulateTyping("@words")
+            assertThat(awaitItem())
+                .isEqualTo(MentionEditable.SearchQuery(9, "words"))
+        }
+    }
+
+    @Test
+    fun `should cancel query after a whitespace or another 'at' is typed`() = runTest {
+        mentionEditable.observeMentionSearchQuery().test {
+            assertThat(awaitItem()).isNull()
+
+            mentionEditable.simulateTyping("@words")
+            assertThat(awaitItem())
+                .isEqualTo(MentionEditable.SearchQuery(0, "words"))
+
+            mentionEditable.simulateTyping(" ")
+            assertThat(awaitItem())
+                .isNull()
+
+            mentionEditable.simulateTyping("@query@")
+            assertThat(awaitItem())
+                .isEqualTo(MentionEditable.SearchQuery(13, ""))
+        }
+    }
+
+    @Test
+    fun `should move pass the whole span while moving cursor around mentioned block `() {
+        mentionEditable.append("Mention @user here")
+        mentionEditable.addMention(MentionViewModel.Member("user", "User", false), 8..14)
+
+        // Put cursor right before @user, it should then select nothing
+        Selection.setSelection(mentionEditable, 8)
+        assertThat(mentionEditable.selection()).isEqualTo(intArrayOf(8, 8))
+
+        // Put cursor right after '@', it should then select the whole @user
+        Selection.setSelection(mentionEditable, 9)
+        assertThat(mentionEditable.selection()).isEqualTo(intArrayOf(8, 13))
+
+        // Put cursor right after @user, it should then select nothing
+        Selection.setSelection(mentionEditable, 13)
+        assertThat(mentionEditable.selection()).isEqualTo(intArrayOf(13, 13))
+    }
+
+    @Test
+    fun `should delete the whole mention block while deleting only part of it`() {
+        mentionEditable.append("Mention @user here")
+        mentionEditable.addMention(MentionViewModel.Member("user", "User", false), 8..14)
+
+        mentionEditable.delete(8, 9)
+        assertThat(mentionEditable.toString()).isEqualTo("Mention  here")
+    }
+}
+
+private fun CharSequence.selection(): IntArray {
+    return intArrayOf(Selection.getSelectionStart(this), Selection.getSelectionEnd(this))
+}
+
+private fun Editable.simulateTyping(text: String) {
+    this.append(text)
+    Selection.setSelection(this, this.length)
+}

app/src/test/java/org/thoughtcrime/securesms/conversation/v2/MentionViewModelTest.kt

@@ -0,0 +1,185 @@
+package org.thoughtcrime.securesms.conversation.v2
+
+import android.text.Selection
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.UnconfinedTestDispatcher
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.kotlin.any
+import org.mockito.kotlin.doAnswer
+import org.mockito.kotlin.doReturn
+import org.mockito.kotlin.eq
+import org.mockito.kotlin.mock
+import org.robolectric.RobolectricTestRunner
+import org.session.libsession.messaging.contacts.Contact
+import org.session.libsession.messaging.open_groups.GroupMemberRole
+import org.session.libsession.messaging.open_groups.OpenGroup
+import org.session.libsession.utilities.recipients.Recipient
+import org.thoughtcrime.securesms.MainCoroutineRule
+import org.thoughtcrime.securesms.conversation.v2.mention.MentionViewModel
+
+@RunWith(RobolectricTestRunner::class)
+class MentionViewModelTest {
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @get:Rule
+    val mainCoroutineRule = MainCoroutineRule()
+
+    private lateinit var mentionViewModel: MentionViewModel
+
+    private val threadID = 123L
+
+    private data class MemberInfo(
+        val name: String,
+        val pubKey: String,
+        val roles: List<GroupMemberRole>
+    )
+
+    private val threadMembers = listOf(
+        MemberInfo("Alice", "pubkey1", listOf(GroupMemberRole.ADMIN)),
+        MemberInfo("Bob", "pubkey2", listOf(GroupMemberRole.STANDARD)),
+        MemberInfo("Charlie", "pubkey3", listOf(GroupMemberRole.MODERATOR)),
+        MemberInfo("David", "pubkey4", listOf(GroupMemberRole.HIDDEN_ADMIN)),
+        MemberInfo("Eve", "pubkey5", listOf(GroupMemberRole.HIDDEN_MODERATOR)),
+        MemberInfo("李云海", "pubkey6", listOf(GroupMemberRole.ZOOMBIE)),
+    )
+
+    private val memberContacts = threadMembers.map { m ->
+        Contact(m.pubKey).also {
+            it.name = m.name
+        }
+    }
+
+    private val openGroup = OpenGroup(
+        server = "",
+        room = "",
+        id = "open_group_id_1",
+        name = "Open Group",
+        publicKey = "",
+        imageId = null,
+        infoUpdates = 0,
+        canWrite = true
+    )
+
+    @Before
+    fun setUp() {
+        @Suppress("UNCHECKED_CAST")
+        mentionViewModel = MentionViewModel(
+            threadID,
+            contentResolver = mock { },
+            threadDatabase = mock {
+                on { getRecipientForThreadId(threadID) } doAnswer {
+                    mock<Recipient> {
+                        on { isClosedGroupRecipient } doReturn false
+                        on { isCommunityRecipient } doReturn true
+                        on { isContactRecipient } doReturn false
+                    }
+                }
+            },
+            groupDatabase = mock {
+            },
+            mmsDatabase = mock {
+                on { getRecentChatMemberIDs(eq(threadID), any()) } doAnswer {
+                    val limit = it.arguments[1] as Int
+                    threadMembers.take(limit).map { m -> m.pubKey }
+                }
+            },
+            contactDatabase = mock {
+                on { getContacts(any()) } doAnswer {
+                    val ids = it.arguments[0] as Collection<String>
+                    memberContacts.filter { contact -> contact.sessionID in ids }
+                }
+            },
+            memberDatabase = mock {
+                on { getGroupMembersRoles(eq(openGroup.id), any()) } doAnswer {
+                    val memberIDs = it.arguments[1] as Collection<String>
+                    memberIDs.associateWith { id ->
+                        threadMembers.first { m -> m.pubKey == id }.roles
+                    }
+                }
+            },
+            storage = mock {
+                on { getOpenGroup(threadID) } doReturn openGroup
+            },
+            dispatcher = StandardTestDispatcher()
+        )
+    }
+
+    @Test
+    fun `should show candidates after 'at' symbol`() = runTest {
+        mentionViewModel.autoCompleteState.test {
+            assertThat(awaitItem())
+                .isEqualTo(MentionViewModel.AutoCompleteState.Idle)
+
+            val editable = mentionViewModel.editableFactory.newEditable("")
+            editable.append("Hello @")
+            expectNoEvents() // Nothing should happen before cursor is put after @
+            Selection.setSelection(editable, editable.length)
+
+            assertThat(awaitItem())
+                .isEqualTo(MentionViewModel.AutoCompleteState.Loading)
+
+            // Should show all the candidates
+            awaitItem().let { result ->
+                assertThat(result)
+                    .isInstanceOf(MentionViewModel.AutoCompleteState.Result::class.java)
+                result as MentionViewModel.AutoCompleteState.Result
+
+                assertThat(result.members).isEqualTo(threadMembers.mapIndexed { index, m ->
+                    val name =
+                        memberContacts[index].displayName(Contact.ContactContext.OPEN_GROUP).orEmpty()
+
+                    MentionViewModel.Candidate(
+                        MentionViewModel.Member(m.pubKey, name, m.roles.any { it.isModerator }),
+                        name,
+                        0
+                    )
+                })
+            }
+
+
+            // Continue typing to filter candidates
+            editable.append("li")
+            Selection.setSelection(editable, editable.length)
+
+            // Should show only Alice and Charlie
+            awaitItem().let { result ->
+                assertThat(result)
+                    .isInstanceOf(MentionViewModel.AutoCompleteState.Result::class.java)
+                result as MentionViewModel.AutoCompleteState.Result
+
+                assertThat(result.members[0].member.name).isEqualTo("Alice (pubk...key1)")
+                assertThat(result.members[1].member.name).isEqualTo("Charlie (pubk...key3)")
+            }
+        }
+    }
+
+    @Test
+    fun `should have normalised message with candidates selected`() = runTest {
+        mentionViewModel.autoCompleteState.test {
+            assertThat(awaitItem())
+                .isEqualTo(MentionViewModel.AutoCompleteState.Idle)
+
+            val editable = mentionViewModel.editableFactory.newEditable("")
+            editable.append("Hi @")
+            Selection.setSelection(editable, editable.length)
+
+            assertThat(awaitItem())
+                .isEqualTo(MentionViewModel.AutoCompleteState.Loading)
+
+            // Select a candidate now
+            assertThat(awaitItem())
+                .isInstanceOf(MentionViewModel.AutoCompleteState.Result::class.java)
+            mentionViewModel.onCandidateSelected("pubkey1")
+
+            // Should have normalised message with selected candidate
+            assertThat(mentionViewModel.normalizeMessageBody())
+                .isEqualTo("Hi @pubkey1 ")
+        }
+    }
+}

app/src/test/resources/TestAndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<manifest>
+
+</manifest>

app/src/test/resources/robolectric.properties

@@ -0,0 +1,3 @@
+manifest=TestAndroidManifest.xml
+sdk=34
+application=android.app.Application

libsession/src/main/java/org/session/libsession/messaging/open_groups/GroupMember.kt

@@ -6,6 +6,11 @@ data class GroupMember(
     val role: GroupMemberRole
 )
 
-enum class GroupMemberRole {
+enum class GroupMemberRole(val isModerator: Boolean = false) {
-    STANDARD, ZOOMBIE, MODERATOR, ADMIN, HIDDEN_MODERATOR, HIDDEN_ADMIN
+    STANDARD,
+    ZOOMBIE,
+    MODERATOR(true),
+    ADMIN(true),
+    HIDDEN_MODERATOR(true),
+    HIDDEN_ADMIN(true),
 }