1 files changed, 13 insertions, 16 deletions

diff --git a/indra/newview/llfloaterconversationpreview.cpp b/indra/newview/llfloaterconversationpreview.cpp
index 4a85160f95..5041f4689d 100755
--- a/indra/newview/llfloaterconversationpreview.cpp
+++ b/indra/newview/llfloaterconversationpreview.cpp
@@ -44,7 +44,8 @@ LLFloaterConversationPreview::LLFloaterConversationPreview(const LLSD& session_i
 	mPageSize(gSavedSettings.getS32("ConversationHistoryPageSize")),
 	mAccountName(session_id[LL_FCP_ACCOUNT_NAME]),
 	mCompleteName(session_id[LL_FCP_COMPLETE_NAME]),
-	mMutex(NULL)
+	mMutex(NULL),
+	mShowHistory(false)
 {
 }
 
@@ -91,12 +92,11 @@ BOOL LLFloaterConversationPreview::postBuild()
 	mPageSpinner->setMinValue(1);
 	mPageSpinner->set(1);
 	mPageSpinner->setEnabled(false);
-	mChatHistoryLoaded = false;
 	LLLogChat::startChatHistoryThread(file, load_params);
 	return LLFloater::postBuild();
 }
 
-void LLFloaterConversationPreview::setPages(std::list<LLSD>& messages,const std::string& file_name)
+void LLFloaterConversationPreview::setPages(std::list<LLSD>& messages, const std::string& file_name)
 {
 	if(file_name == mChatHistoryFileName)
 	{
@@ -111,34 +111,30 @@ void LLFloaterConversationPreview::setPages(std::list<LLSD>& messages,const std:
 
 		std::string total_page_num = llformat("/ %d", mCurrentPage+1);
 		getChild<LLTextBox>("page_num_label")->setValue(total_page_num);
-		mChatHistoryLoaded = true;
+		mShowHistory = true;
 	}
 }
 
 void LLFloaterConversationPreview::draw()
 {
-	if(mChatHistoryLoaded)
+	if(mShowHistory)
 	{
 		showHistory();
-		mChatHistoryLoaded = false;
+		mShowHistory = false;
 	}
 	LLFloater::draw();
 }
 
 void LLFloaterConversationPreview::onOpen(const LLSD& key)
 {
-	if(mChatHistoryLoaded)
-	{
-		showHistory();
-	}
+	mShowHistory = true;
 }
 
 void LLFloaterConversationPreview::showHistory()
 {
-	// additional protection to avoid changes of mMessages in setPages()
+	// additional protection to avoid changes of mMessages in setPages
 	LLMutexLock lock(&mMutex);
-
-	if (!mMessages.size() || mCurrentPage * mPageSize >= mMessages.size())
+	if(!mMessages.size() || mCurrentPage * mPageSize >= mMessages.size())
 	{
 		return;
 	}
@@ -147,7 +143,7 @@ void LLFloaterConversationPreview::showHistory()
 	std::ostringstream message;
 	std::list<LLSD>::const_iterator iter = mMessages.begin();
 	std::advance(iter, mCurrentPage * mPageSize);
-
+	
 	for (int msg_num = 0; iter != mMessages.end() && msg_num < mPageSize; ++iter, ++msg_num)
 	{
 		LLSD msg = *iter;
@@ -198,10 +194,11 @@ void LLFloaterConversationPreview::showHistory()
 void LLFloaterConversationPreview::onMoreHistoryBtnClick()
 {
 	mCurrentPage = (int)(mPageSpinner->getValueF32());
-	if (--mCurrentPage < 0)
+	if (!mCurrentPage)
 	{
 		return;
 	}
 
-	showHistory();
+	mCurrentPage--;
+	mShowHistory = true;
 }