From 7c3d3976eeac578db0c2ddf3522617840ad2324d Mon Sep 17 00:00:00 2001
From: David Rowe <david@ctrlaltstudio.com>
Date: Sun, 25 May 2014 16:42:36 -0700
Subject: [PATCH] Fix chat window scrolling to stay at bottom

Stay at bottom window when:
- There is new chat.
- People come and go from online list.
- Chat window hides and restores when application focus changes.
- Interface is minimized and restored.
---
 interface/src/ui/ChatWindow.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/interface/src/ui/ChatWindow.cpp b/interface/src/ui/ChatWindow.cpp
index 1cf45ab81b..2f044739df 100644
--- a/interface/src/ui/ChatWindow.cpp
+++ b/interface/src/ui/ChatWindow.cpp
@@ -248,6 +248,7 @@ void ChatWindow::notificationClicked() {
             return;
         }
     }
+    Application::processEvents();
 
     scrollToBottom();
 }
@@ -262,6 +263,8 @@ void ChatWindow::error(QXmppClient::Error error) {
 }
 
 void ChatWindow::participantsChanged() {
+    bool atBottom = isNearBottom();
+
     QStringList participants = XmppClient::getInstance().getPublicChatRoom()->participants();
     ui->numOnlineLabel->setText(tr("%1 online now:").arg(participants.count()));
 
@@ -288,6 +291,11 @@ void ChatWindow::participantsChanged() {
         userLabel->installEventFilter(this);
         ui->usersWidget->layout()->addWidget(userLabel);
     }
+    Application::processEvents();
+
+    if (atBottom) {
+        scrollToBottom();
+    }
 }
 
 void ChatWindow::messageReceived(const QXmppMessage& message) {