Add mention candidates view

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

@@ -6,13 +6,11 @@ import android.content.res.Resources
 import android.database.Cursor
 import android.graphics.Rect
 import android.os.Bundle
-import android.util.Log
 import android.view.ActionMode
 import android.view.Menu
 import android.view.MenuItem
 import android.view.MotionEvent
 import android.widget.RelativeLayout
-import androidx.core.view.marginBottom
 import androidx.loader.app.LoaderManager
 import androidx.loader.content.Loader
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -23,15 +21,17 @@ import kotlinx.android.synthetic.main.view_input_bar.view.*
 import kotlinx.android.synthetic.main.view_input_bar_recording.*
 import kotlinx.android.synthetic.main.view_input_bar_recording.view.*
 import network.loki.messenger.R
+import org.session.libsession.messaging.mentions.MentionsManager
+import org.session.libsession.messaging.mentions.MentionsManager.getMentionCandidates
 import org.thoughtcrime.securesms.PassphraseRequiredActionBarActivity
 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.menus.ConversationActionModeCallback
 import org.thoughtcrime.securesms.conversation.v2.menus.ConversationMenuHelper
 import org.thoughtcrime.securesms.database.DatabaseFactory
 import org.thoughtcrime.securesms.database.model.MessageRecord
-import org.thoughtcrime.securesms.loki.utilities.toDp
 import org.thoughtcrime.securesms.loki.utilities.toPx
 import org.thoughtcrime.securesms.mms.GlideApp
 import kotlin.math.abs
@@ -152,9 +152,15 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
 
     // region Updating
     override fun inputBarHeightChanged(newValue: Int) {
+        // Recycler view
         val recyclerViewLayoutParams = conversationRecyclerView.layoutParams as RelativeLayout.LayoutParams
-        recyclerViewLayoutParams.bottomMargin = newValue
+        recyclerViewLayoutParams.bottomMargin = newValue + inputBarAdditionalContentContainer.height
         conversationRecyclerView.layoutParams = recyclerViewLayoutParams
+        // Input bar additional content container
+        val inputBarAdditionalContentContainerLayoutParams = inputBarAdditionalContentContainer.layoutParams as RelativeLayout.LayoutParams
+        inputBarAdditionalContentContainerLayoutParams.bottomMargin = newValue
+        inputBarAdditionalContentContainer.layoutParams = inputBarAdditionalContentContainerLayoutParams
+        // Attachment options
         val attachmentButtonHeight = inputBar.attachmentsButtonContainer.height
         val bottomMargin = (newValue - attachmentButtonHeight) / 2
         val margin = toPx(8, resources)
@@ -163,6 +169,22 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         attachmentOptionsContainer.layoutParams = attachmentOptionsContainerLayoutParams
     }
 
+    override fun inputBarEditTextContentChanged(newContent: CharSequence) {
+        // TODO: Work this out further
+        if (newContent.contains("@")) {
+            showMentionCandidates()
+        }
+    }
+
+    private fun showMentionCandidates() {
+        inputBarAdditionalContentContainer.removeAllViews()
+        val mentionCandidatesView = MentionCandidatesView(this)
+        mentionCandidatesView.glide = glide
+        inputBarAdditionalContentContainer.addView(mentionCandidatesView)
+        val mentionCandidates = MentionsManager.getMentionCandidates("", threadID, thread.isOpenGroupRecipient)
+        mentionCandidatesView.show(mentionCandidates, threadID)
+    }
+
     override fun toggleAttachmentOptions() {
         val targetAlpha = if (isShowingAttachmentOptions) 0.0f else 1.0f
         val allButtons = listOf( cameraButtonContainer, libraryButtonContainer, documentButtonContainer, gifButtonContainer)

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

@@ -52,6 +52,7 @@ class InputBar : RelativeLayout, InputBarEditTextDelegate {
     override fun inputBarEditTextContentChanged(text: CharSequence) {
         sendButton.isVisible = text.isNotEmpty()
         microphoneButton.isVisible = text.isEmpty()
+        delegate?.inputBarEditTextContentChanged(text)
     }
 
     override fun inputBarEditTextHeightChanged(newValue: Int) {
@@ -76,6 +77,7 @@ class InputBar : RelativeLayout, InputBarEditTextDelegate {
 interface InputBarDelegate {
 
     fun inputBarHeightChanged(newValue: Int)
+    fun inputBarEditTextContentChanged(newContent: CharSequence)
     fun toggleAttachmentOptions()
     fun showVoiceMessageUI()
     fun onMicrophoneButtonMove(event: MotionEvent)

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

@@ -0,0 +1,47 @@
+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.view.ViewGroup
+import android.widget.LinearLayout
+import android.widget.RelativeLayout
+import kotlinx.android.synthetic.main.view_mention_candidate.view.*
+import network.loki.messenger.R
+import org.session.libsession.messaging.mentions.Mention
+import org.session.libsession.messaging.open_groups.OpenGroupAPIV2
+import org.thoughtcrime.securesms.mms.GlideRequests
+
+class MentionCandidateView(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : RelativeLayout(context, attrs, defStyleAttr) {
+    var candidate = Mention("", "")
+        set(newValue) { field = newValue; update() }
+    var glide: GlideRequests? = null
+    var openGroupServer: String? = null
+    var openGroupRoom: String? = null
+
+    constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
+    constructor(context: Context) : this(context, null)
+
+    companion object {
+
+        fun inflate(layoutInflater: LayoutInflater, parent: ViewGroup): MentionCandidateView {
+            return layoutInflater.inflate(R.layout.view_mention_candidate_v2, parent, false) as MentionCandidateView
+        }
+    }
+
+    private fun update() {
+        mentionCandidateNameTextView.text = candidate.displayName
+        profilePictureView.publicKey = candidate.publicKey
+        profilePictureView.displayName = candidate.displayName
+        profilePictureView.additionalPublicKey = null
+        profilePictureView.glide = glide!!
+        profilePictureView.update()
+        if (openGroupServer != null && openGroupRoom != null) {
+            val isUserModerator = OpenGroupAPIV2.isUserModerator(candidate.publicKey, openGroupRoom!!, openGroupServer!!)
+            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

@@ -0,0 +1,79 @@
+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.view.ViewGroup
+import android.widget.BaseAdapter
+import android.widget.ListView
+import org.thoughtcrime.securesms.database.DatabaseFactory
+import org.thoughtcrime.securesms.loki.utilities.toPx
+import org.thoughtcrime.securesms.mms.GlideRequests
+import org.session.libsession.messaging.mentions.Mention
+
+class MentionCandidatesView(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : ListView(context, attrs, defStyleAttr) {
+    private var candidates = listOf<Mention>()
+        set(newValue) { field = newValue; snAdapter.mentionCandidates = 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
+
+    private val snAdapter by lazy { Adapter(context) }
+
+    private class Adapter(private val context: Context) : BaseAdapter() {
+        var mentionCandidates = listOf<Mention>()
+            set(newValue) { field = newValue; notifyDataSetChanged() }
+        var glide: GlideRequests? = null
+        var openGroupServer: String? = null
+        var openGroupRoom: String? = null
+
+        override fun getCount(): Int { return mentionCandidates.count() }
+        override fun getItemId(position: Int): Long { return position.toLong() }
+        override fun getItem(position: Int): Mention { return mentionCandidates[position] }
+
+        override fun getView(position: Int, cellToBeReused: View?, parent: ViewGroup): View {
+            val cell = cellToBeReused as MentionCandidateView? ?: MentionCandidateView.inflate(LayoutInflater.from(context), parent)
+            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.mentionCandidates = candidates
+        setOnItemClickListener { _, _, position, _ ->
+            onCandidateSelected?.invoke(candidates[position])
+        }
+    }
+
+    fun show(mentionCandidates: List<Mention>, threadID: Long) {
+        val openGroup = DatabaseFactory.getLokiThreadDatabase(context).getOpenGroupChat(threadID)
+        if (openGroup != null) {
+            openGroupServer = openGroup.server
+            openGroupRoom = openGroup.room
+        }
+        this.candidates = mentionCandidates
+        val layoutParams = this.layoutParams as ViewGroup.LayoutParams
+        layoutParams.height = toPx(Math.min(mentionCandidates.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/loki/views/MentionCandidateView.kt

@@ -30,7 +30,7 @@ class MentionCandidateView(context: Context, attrs: AttributeSet?, defStyleAttr:
     }
 
     private fun update() {
-        btnGroupNameDisplay.text = mentionCandidate.displayName
+        mentionCandidateNameTextView.text = mentionCandidate.displayName
         profilePictureView.publicKey = mentionCandidate.publicKey
         profilePictureView.displayName = mentionCandidate.displayName
         profilePictureView.additionalPublicKey = null