diff --git a/indra/newview/llchathistory.cpp b/indra/newview/llchathistory.cpp index ac12bffdfbc056a75c0ed4021c70fe5ee64e54ca..c0fa910f86cb37b8ff2f0678dd628547b8fe9ccc 100644 --- a/indra/newview/llchathistory.cpp +++ b/indra/newview/llchathistory.cpp @@ -557,11 +557,14 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL { bool use_plain_text_chat_history = args["use_plain_text_chat_history"].asBoolean(); - if(mEditor) + llassert(mEditor); + if (!mEditor) { - mEditor->setPlainText(use_plain_text_chat_history); + return; } + mEditor->setPlainText(use_plain_text_chat_history); + if (!mEditor->scrolledToEnd() && chat.mFromID != gAgent.getID() && !chat.mFromName.empty()) { mUnreadChatSources.insert(chat.mFromName); @@ -740,7 +743,7 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL mIsLastMessageFromLog = message_from_log; } - if (chat.mNotifId.notNull()) + if (chat.mNotifId.notNull()) { LLNotificationPtr notification = LLNotificationsUtil::find(chat.mNotifId); if (notification != NULL) @@ -832,6 +835,7 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL mEditor->appendText(message, FALSE, style_params); } + mEditor->blockUndo(); // automatically scroll to end when receiving chat from myself