From 5e4476c903421d5d8f74329072ce3907ee292827 Mon Sep 17 00:00:00 2001
From: Mariotaku Lee <mariotaku.lee@gmail.com>
Date: Sun, 26 Feb 2017 00:04:57 +0800
Subject: [PATCH] improved participants limitation

---
 .../adapter/BaseRecyclerViewAdapter.kt        |  5 +++-
 .../MessageConversationInfoFragment.kt        | 26 +++++++++++++++++--
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/twidere/src/main/kotlin/org/mariotaku/twidere/adapter/BaseRecyclerViewAdapter.kt b/twidere/src/main/kotlin/org/mariotaku/twidere/adapter/BaseRecyclerViewAdapter.kt
index 4a49d7410..f6a5e28db 100644
--- a/twidere/src/main/kotlin/org/mariotaku/twidere/adapter/BaseRecyclerViewAdapter.kt
+++ b/twidere/src/main/kotlin/org/mariotaku/twidere/adapter/BaseRecyclerViewAdapter.kt
@@ -28,6 +28,7 @@ import org.mariotaku.twidere.constant.displayProfileImageKey
 import org.mariotaku.twidere.constant.profileImageStyleKey
 import org.mariotaku.twidere.constant.showAbsoluteTimeKey
 import org.mariotaku.twidere.constant.textSizeKey
+import org.mariotaku.twidere.model.DefaultFeatures
 import org.mariotaku.twidere.util.*
 import org.mariotaku.twidere.util.dagger.GeneralComponentHelper
 import javax.inject.Inject
@@ -45,13 +46,15 @@ abstract class BaseRecyclerViewAdapter<VH : RecyclerView.ViewHolder>(
     @Inject
     override final lateinit var userColorNameManager: UserColorNameManager
     @Inject
+    override final lateinit var bidiFormatter: BidiFormatter
+    @Inject
     lateinit var preferences: SharedPreferencesWrapper
     @Inject
     lateinit var readStateManager: ReadStateManager
     @Inject
     lateinit var multiSelectManager: MultiSelectManager
     @Inject
-    override final lateinit var bidiFormatter: BidiFormatter
+    lateinit var defaultFeatures: DefaultFeatures
 
     override final val profileImageStyle: Int
     override final val textSize: Float
diff --git a/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/message/MessageConversationInfoFragment.kt b/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/message/MessageConversationInfoFragment.kt
index 032db7226..294b1763a 100644
--- a/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/message/MessageConversationInfoFragment.kt
+++ b/twidere/src/main/kotlin/org/mariotaku/twidere/fragment/message/MessageConversationInfoFragment.kt
@@ -68,6 +68,8 @@ import org.mariotaku.twidere.fragment.iface.IToolBarSupportFragment
 import org.mariotaku.twidere.fragment.message.MessageConversationInfoFragment.ConversationInfoAdapter.Companion.VIEW_TYPE_HEADER
 import org.mariotaku.twidere.fragment.message.MessageConversationInfoFragment.ConversationInfoAdapter.Companion.VIEW_TYPE_SPACE
 import org.mariotaku.twidere.model.*
+import org.mariotaku.twidere.model.ParcelableMessageConversation.ConversationType
+import org.mariotaku.twidere.model.ParcelableMessageConversation.ExtrasType
 import org.mariotaku.twidere.provider.TwidereDataStore.Messages.Conversations
 import org.mariotaku.twidere.task.twitter.message.AddParticipantsTask
 import org.mariotaku.twidere.task.twitter.message.DestroyConversationTask
@@ -313,9 +315,22 @@ class MessageConversationInfoFragment : BaseFragment(), IToolBarSupportFragment,
 
         override fun getItemCount(): Int {
             val conversation = this.conversation ?: return 0
+            val participantsSize = conversation.participants.size
             itemCounts[ITEM_INDEX_HEADER] = 1
-            itemCounts[ITEM_INDEX_ITEM] = conversation.participants.size
-            itemCounts[ITEM_INDEX_ADD_USER] = 1
+            itemCounts[ITEM_INDEX_ITEM] = participantsSize
+            when (conversation.conversation_type) {
+                ConversationType.GROUP -> {
+                    if (participantsSize < defaultFeatures.getDirectMessageMaxParticipants(conversation.conversation_extras_type)) {
+                        itemCounts[ITEM_INDEX_ADD_USER] = 1
+                    } else {
+                        itemCounts[ITEM_INDEX_ADD_USER] = 0
+                    }
+                }
+                else -> {
+                    itemCounts[ITEM_INDEX_ADD_USER] = 0
+                }
+            }
+
             itemCounts[ITEM_INDEX_SPACE] = 1
             return itemCounts.itemCount
         }
@@ -508,3 +523,10 @@ class MessageConversationInfoFragment : BaseFragment(), IToolBarSupportFragment,
         const val REQUEST_CONVERSATION_ADD_USER = 101
     }
 }
+
+private fun DefaultFeatures.getDirectMessageMaxParticipants(extrasType: String?): Long {
+    when (extrasType) {
+        ExtrasType.TWITTER_OFFICIAL -> return twitterDirectMessageMaxParticipants
+    }
+    return 2
+}