Show/hide chatroom type icon when accessing members list

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomActivity.kt

@@ -102,31 +102,39 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
         return fragmentDispatchingAndroidInjector
     }
 
+    fun showRoomTypeIcon(showRoomTypeIcon: Boolean) {
+        if (showRoomTypeIcon) {
+            val roomType = roomTypeOf(chatRoomType)
+            val drawable = when (roomType) {
+                is RoomType.Channel -> {
+                    DrawableHelper.getDrawableFromId(R.drawable.ic_room_channel, this)
+                }
+                is RoomType.PrivateGroup -> {
+                    DrawableHelper.getDrawableFromId(R.drawable.ic_room_lock, this)
+                }
+                is RoomType.DirectMessage -> {
+                    DrawableHelper.getDrawableFromId(R.drawable.ic_room_dm, this)
+                }
+                else -> null
+            }
+
+            drawable?.let {
+                val wrappedDrawable = DrawableHelper.wrapDrawable(it)
+                val mutableDrawable = wrappedDrawable.mutate()
+                DrawableHelper.tintDrawable(mutableDrawable, this, R.color.white)
+                DrawableHelper.compoundDrawable(text_room_name, mutableDrawable)
+            }
+        } else {
+            text_room_name.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0)
+        }
+    }
+
     private fun setupToolbar() {
         setSupportActionBar(toolbar)
         supportActionBar?.setDisplayShowTitleEnabled(false)
         text_room_name.textContent = chatRoomName
 
-        val roomType = roomTypeOf(chatRoomType)
-        val drawable = when (roomType) {
-            is RoomType.Channel -> {
-                DrawableHelper.getDrawableFromId(R.drawable.ic_room_channel, this)
-            }
-            is RoomType.PrivateGroup -> {
-                DrawableHelper.getDrawableFromId(R.drawable.ic_room_lock, this)
-            }
-            is RoomType.DirectMessage -> {
-                DrawableHelper.getDrawableFromId(R.drawable.ic_room_dm, this)
-            }
-            else -> null
-        }
-
-        drawable?.let {
-            val wrappedDrawable = DrawableHelper.wrapDrawable(it)
-            val mutableDrawable = wrappedDrawable.mutate()
-            DrawableHelper.tintDrawable(mutableDrawable, this, R.color.white)
-            DrawableHelper.compoundDrawable(text_room_name, mutableDrawable)
-        }
+        showRoomTypeIcon(true)
 
         toolbar.setNavigationOnClickListener {
             finishActivity()

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomFragment.kt

@@ -123,6 +123,10 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
         setupMessageComposer()
         setupSuggestionsView()
         setupActionSnackbar()
+        activity?.apply {
+            (this as? ChatRoomActivity)?.showRoomTypeIcon(true)
+        }
+
     }
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {

app/src/main/java/chat/rocket/android/members/ui/MembersFragment.kt

@@ -6,6 +6,7 @@ import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.LinearLayoutManager
 import android.support.v7.widget.RecyclerView
 import android.view.LayoutInflater
+import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import chat.rocket.android.R
@@ -83,7 +84,18 @@ class MembersFragment : Fragment(), MembersView {
             } else {
                 adapter.appendData(dataSet)
             }
+            if (this is ChatRoomActivity) {
+                this.showRoomTypeIcon(false)
+            }
+        }
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        if (item.itemId == android.R.id.home) {
+            (activity as ChatRoomActivity).showRoomTypeIcon(true)
+            return super.onOptionsItemSelected(item)
         }
+        return super.onOptionsItemSelected(item)
     }
 
     override fun showLoading() = view_loading.setVisible(true)