From b3a850a876834ad3e0575dc6d6c4aadd3436564d Mon Sep 17 00:00:00 2001
From: Harris <hjubb@users.noreply.github.com>
Date: Tue, 21 Sep 2021 14:50:25 +1000
Subject: [PATCH] feat: instantly scroll to bottom if already smooth scrolling
 on button tap

fixes #736
---
 .../securesms/conversation/v2/ConversationActivityV2.kt  | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt b/app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt
index e0453e10c7..b536e36ea8 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt
@@ -234,7 +234,14 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         setUpLinkPreviewObserver()
         restoreDraftIfNeeded()
         addOpenGroupGuidelinesIfNeeded()
-        scrollToBottomButton.setOnClickListener { conversationRecyclerView.smoothScrollToPosition(0) }
+        scrollToBottomButton.setOnClickListener {
+            val layoutManager = conversationRecyclerView.layoutManager ?: return@setOnClickListener
+            if (layoutManager.isSmoothScrolling) {
+                conversationRecyclerView.scrollToPosition(0)
+            } else {
+                conversationRecyclerView.smoothScrollToPosition(0)
+            }
+        }
         unreadCount = DatabaseFactory.getMmsSmsDatabase(this).getUnreadCount(threadID)
         updateUnreadCountIndicator()
         setUpTypingObserver()