Adding participants to existing group

app/src/main/java/org/linphone/ui/main/chat/fragment/ConversationInfoFragment.kt

@@ -123,6 +123,13 @@ class ConversationInfoFragment : GenericFragment() {
             }
         }
 
+        sharedViewModel.listOfSelectedSipUrisEvent.observe(viewLifecycleOwner) {
+            it.consume { list ->
+                Log.i("$TAG Found [${list.size}] new participants to add to the group, let's do it")
+                viewModel.addParticipants(list)
+            }
+        }
+
         binding.setBackClickListener {
             goBack()
         }

app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationInfoViewModel.kt

@@ -25,6 +25,7 @@ import androidx.annotation.WorkerThread
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Address
 import org.linphone.core.ChatRoom
 import org.linphone.core.ChatRoomListenerStub
 import org.linphone.core.EventLog
@@ -256,6 +257,37 @@ class ConversationInfoViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    @UiThread
+    fun addParticipants(toAdd: ArrayList<String>) {
+        coreContext.postOnCoreThread {
+            if (::chatRoom.isInitialized) {
+                if (!LinphoneUtils.isChatRoomAGroup(chatRoom)) {
+                    Log.e("$TAG Can't add participants to a chat room that's not a group!")
+                    return@postOnCoreThread
+                }
+
+                val list = arrayListOf<Address>()
+                for (participant in toAdd) {
+                    val address = Factory.instance().createAddress(participant)
+                    if (address == null) {
+                        Log.e("$TAG Failed to parse [$participant] as address!")
+                    } else {
+                        list.add(address)
+                    }
+                }
+
+                val participantsToAdd = arrayOfNulls<Address>(list.size)
+                list.toArray(participantsToAdd)
+                Log.i("$TAG Adding [${participantsToAdd.size}] new participants to chat room")
+                val ok = chatRoom.addParticipants(participantsToAdd)
+                if (!ok) {
+                    Log.w("$TAG Failed to add some/all participants to the group!")
+                    // TODO: show toast
+                }
+            }
+        }
+    }
+
     @WorkerThread
     private fun configureChatRoom() {
         isMuted.postValue(chatRoom.muted)

app/src/main/java/org/linphone/ui/main/fragment/AddParticipantsFragment.kt

@@ -32,6 +32,7 @@ import org.linphone.core.Friend
 import org.linphone.core.tools.Log
 import org.linphone.databinding.GenericAddParticipantsFragmentBinding
 import org.linphone.ui.main.viewmodel.AddParticipantsViewModel
+import org.linphone.utils.Event
 
 @UiThread
 class AddParticipantsFragment : GenericAddressPickerFragment() {
@@ -93,5 +94,12 @@ class AddParticipantsFragment : GenericAddressPickerFragment() {
                 }
             }
         }
+
+        viewModel.selectedSipUrisEvent.observe(viewLifecycleOwner) {
+            it.consume { list ->
+                sharedViewModel.listOfSelectedSipUrisEvent.value = Event(list)
+                goBack()
+            }
+        }
     }
 }

app/src/main/java/org/linphone/ui/main/viewmodel/AddParticipantsViewModel.kt

@@ -20,13 +20,35 @@
 package org.linphone.ui.main.viewmodel
 
 import androidx.annotation.UiThread
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
 
 class AddParticipantsViewModel @UiThread constructor() : AddressSelectionViewModel() {
     companion object {
         private const val TAG = "[Add Participants ViewModel]"
     }
 
+    val selectedSipUrisEvent = MutableLiveData<Event<ArrayList<String>>>()
+
     init {
+        Log.i("$TAG Forcing multiple selection mode")
         switchToMultipleSelectionMode()
     }
+
+    @UiThread
+    fun addParticipants() {
+        val selected = selection.value.orEmpty()
+        Log.i("$TAG [${selected.size}] participants selected")
+
+        coreContext.postOnCoreThread {
+            val list = arrayListOf<String>()
+            for (model in selected) {
+                list.add(model.address.asStringUriOnly())
+            }
+
+            selectedSipUrisEvent.postValue(Event(list))
+        }
+    }
 }

app/src/main/java/org/linphone/ui/main/viewmodel/SharedMainViewModel.kt

@@ -122,4 +122,10 @@ class SharedMainViewModel @UiThread constructor() : ViewModel() {
     val forceRefreshMeetingsListEvent: MutableLiveData<Event<Boolean>> by lazy {
         MutableLiveData<Event<Boolean>>()
     }
+
+    /* Other */
+
+    val listOfSelectedSipUrisEvent: MutableLiveData<Event<ArrayList<String>>> by lazy {
+        MutableLiveData<Event<ArrayList<String>>>()
+    }
 }

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

@@ -43,10 +43,24 @@
                 android:layout_marginStart="10dp"
                 android:layout_marginEnd="10dp"
                 android:text="@string/conversation_add_participants_title"
-                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintEnd_toStartOf="@id/add_participants"
                 app:layout_constraintStart_toEndOf="@id/back"
                 app:layout_constraintTop_toTopOf="parent" />
 
+            <ImageView
+                android:id="@+id/add_participants"
+                android:onClick="@{() -> viewModel.addParticipants()}"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp"
+                android:padding="15dp"
+                android:adjustViewBounds="true"
+                android:src="@drawable/check"
+                android:enabled="@{viewModel.selection.size() > 0}"
+                app:tint="@color/primary_color_selector"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toTopOf="@id/title" />
+
             <View
                 android:id="@+id/background"
                 android:layout_width="0dp"