From d3d9e5dabc089bd0669c86b134c568a5f2bc4a02 Mon Sep 17 00:00:00 2001
From: Matthew Chen <charlesmchen@gmail.com>
Date: Mon, 28 Aug 2017 14:55:39 -0400
Subject: [PATCH] Fix scroll down button state.

// FREEBIE
---
 .../ConversationView/MessagesViewController.m         | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/Signal/src/ViewControllers/ConversationView/MessagesViewController.m b/Signal/src/ViewControllers/ConversationView/MessagesViewController.m
index 254c2ae11b..5e714b6764 100644
--- a/Signal/src/ViewControllers/ConversationView/MessagesViewController.m
+++ b/Signal/src/ViewControllers/ConversationView/MessagesViewController.m
@@ -692,7 +692,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
         [self scrollToBottomAnimated:NO];
     }
 
-    [self ensureScrollDownButton];
+    [self updateLastVisibleTimestamp];
 }
 
 - (void)scrollToUnreadIndicatorAnimated
@@ -711,8 +711,8 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
                                                 animated:YES];
         }
     }
-    
-    [self ensureScrollDownButton];
+
+    [self updateLastVisibleTimestamp];
 }
 
 - (void)resetContentAndLayout
@@ -2928,7 +2928,6 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
     [super viewDidLayoutSubviews];
 
     [self updateLastVisibleTimestamp];
-    [self ensureScrollDownButton];
 }
 
 - (void)createScrollDownButton
@@ -4156,7 +4155,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
         [self scrollToBottomImmediately];
     }
 
-    [self ensureScrollDownButton];
+    [self updateLastVisibleTimestamp];
 }
 
 - (void)scrollToBottomImmediately
@@ -4246,7 +4245,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
     // and the "send" button if it isn't.
     [((OWSMessagesToolbarContentView *)self.inputToolbar.contentView)ensureEnabling];
 
-    [self ensureScrollDownButton];
+    [self updateLastVisibleTimestamp];
 }
 
 #pragma mark - UIScrollViewDelegate