Add inline emoji search to CFv2.

app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationParentFragment.java

@@ -2235,7 +2235,6 @@ public class ConversationParentFragment extends Fragment
     inlineQueryViewModel = new ViewModelProvider(requireActivity()).get(InlineQueryViewModel.class);
 
     inlineQueryResultsController = new InlineQueryResultsController(
-        requireContext(),
         inlineQueryViewModel,
         inputPanel,
         (ViewGroup) requireView(),

app/src/main/java/org/thoughtcrime/securesms/conversation/ui/inlinequery/InlineQueryResultsController.kt

@@ -1,6 +1,5 @@
 package org.thoughtcrime.securesms.conversation.ui.inlinequery
 
-import android.content.Context
 import android.view.View
 import android.view.ViewGroup
 import androidx.lifecycle.DefaultLifecycleObserver
@@ -17,7 +16,6 @@ import org.thoughtcrime.securesms.util.doOnEachLayout
  * Controller for inline search results.
  */
 class InlineQueryResultsController(
-  private val context: Context,
   private val viewModel: InlineQueryViewModel,
   private val anchor: View,
   private val container: ViewGroup,
@@ -44,6 +42,7 @@ class InlineQueryResultsController(
       }
     })
 
+    canShow = editText.hasFocus()
     editText.addOnFocusChangeListener { _, hasFocus ->
       canShow = hasFocus
       updateList(previousResults ?: emptyList())

app/src/main/java/org/thoughtcrime/securesms/conversation/ui/inlinequery/InlineQueryViewModel.kt

@@ -13,7 +13,7 @@ import org.thoughtcrime.securesms.util.adapter.mapping.AnyMappingModel
 
 /**
  * Activity (at least) scope view model for managing inline queries. The view model needs to be larger scope so it can
- * be shared between the fragment requesting the search and the instace of [InlineQueryResultsFragment] used for displaying
+ * be shared between the fragment requesting the search and the instance of [InlineQueryResultsFragment] used for displaying
  * the results.
  */
 class InlineQueryViewModel(

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

@@ -29,6 +29,7 @@ import android.view.MenuItem
 import android.view.MotionEvent
 import android.view.View
 import android.view.View.OnFocusChangeListener
+import android.view.ViewGroup
 import android.view.ViewTreeObserver
 import android.view.inputmethod.EditorInfo
 import android.widget.ImageButton
@@ -161,6 +162,11 @@ import org.thoughtcrime.securesms.conversation.mutiselect.forward.MultiselectFor
 import org.thoughtcrime.securesms.conversation.quotes.MessageQuotesBottomSheet
 import org.thoughtcrime.securesms.conversation.ui.edit.EditMessageHistoryDialog
 import org.thoughtcrime.securesms.conversation.ui.error.EnableCallNotificationSettingsDialog
+import org.thoughtcrime.securesms.conversation.ui.inlinequery.InlineQuery
+import org.thoughtcrime.securesms.conversation.ui.inlinequery.InlineQueryChangedListener
+import org.thoughtcrime.securesms.conversation.ui.inlinequery.InlineQueryReplacement
+import org.thoughtcrime.securesms.conversation.ui.inlinequery.InlineQueryResultsController
+import org.thoughtcrime.securesms.conversation.ui.inlinequery.InlineQueryViewModel
 import org.thoughtcrime.securesms.conversation.v2.groups.ConversationGroupCallViewModel
 import org.thoughtcrime.securesms.conversation.v2.groups.ConversationGroupViewModel
 import org.thoughtcrime.securesms.conversation.v2.keyboard.AttachmentKeyboardFragment
@@ -371,6 +377,17 @@ class ConversationFragment :
     StickerSuggestionsViewModel()
   }
 
+  private val inlineQueryViewModel: InlineQueryViewModel by activityViewModels()
+  private val inlineQueryController: InlineQueryResultsController by lazy {
+    InlineQueryResultsController(
+      inlineQueryViewModel,
+      inputPanel,
+      (requireView() as ViewGroup),
+      composeText,
+      viewLifecycleOwner
+    )
+  }
+
   private val conversationTooltips = ConversationTooltips(this)
   private val colorizer = Colorizer()
   private val textDraftSaveDebouncer = Debouncer(500)
@@ -798,10 +815,39 @@ class ConversationFragment :
     initializeSearch()
     initializeLinkPreviews()
     initializeStickerSuggestions()
+    initializeInlineSearch()
 
     inputPanel.setListener(InputPanelListener())
   }
 
+  private fun initializeInlineSearch() {
+    inlineQueryController.onOrientationChange(resources.configuration.orientation == Configuration.ORIENTATION_LANDSCAPE)
+
+    composeText.apply {
+      setInlineQueryChangedListener(object : InlineQueryChangedListener {
+        override fun onQueryChanged(inlineQuery: InlineQuery) {
+          inlineQueryViewModel.onQueryChange(inlineQuery)
+        }
+      })
+
+      setMentionValidator { annotations ->
+        val recipient = viewModel.recipientSnapshot ?: return@setMentionValidator annotations
+
+        val validIds = recipient.participantIds
+          .map { MentionAnnotation.idToMentionAnnotationValue(it) }
+          .toSet()
+
+        annotations.filterNot { validIds.contains(it.value) }
+      }
+    }
+
+    inlineQueryViewModel
+      .selection
+      .observeOn(AndroidSchedulers.mainThread())
+      .subscribe { r: InlineQueryReplacement -> composeText.replaceText(r) }
+      .addTo(disposables)
+  }
+
   private fun presentInputReadyState(inputReadyState: InputReadyState) {
     presentConversationTitle(inputReadyState.conversationRecipient)
 

app/src/main/java/org/thoughtcrime/securesms/mediasend/v2/review/AddMessageDialogFragment.kt

@@ -167,7 +167,6 @@ class AddMessageDialogFragment : KeyboardEntryDialogFragment(R.layout.v2_media_a
     mentionsViewModel = ViewModelProvider(requireActivity(), MentionsPickerViewModel.Factory()).get(MentionsPickerViewModel::class.java)
 
     inlineQueryResultsController = InlineQueryResultsController(
-      requireContext(),
       inlineQueryViewModel,
       requireView().findViewById(R.id.background_holder),
       (requireView() as ViewGroup),

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/reply/group/StoryGroupReplyFragment.kt

@@ -451,7 +451,6 @@ class StoryGroupReplyFragment :
 
   private fun initializeMentions() {
     inlineQueryResultsController = InlineQueryResultsController(
-      requireContext(),
       inlineQueryViewModel,
       composer,
       (requireView() as ViewGroup),