1 files changed, 24 insertions, 6 deletions

diff --git a/indra/newview/llfloaterimsessiontab.cpp b/indra/newview/llfloaterimsessiontab.cpp
index eab2ce7798..5083331167 100644
--- a/indra/newview/llfloaterimsessiontab.cpp
+++ b/indra/newview/llfloaterimsessiontab.cpp
@@ -132,6 +132,12 @@ void LLFloaterIMSessionTab::setVisible(BOOL visible)
 			LLFloaterReg::getTypedInstance<LLFloaterIMContainer>("im_container")->setVisible(true);
 		}
 		LLFloaterIMSessionTab::addToHost(mSessionID);
+		LLFloaterIMSessionTab* conversp = LLFloaterIMSessionTab::getConversation(mSessionID);
+
+		if (conversp && conversp->isNearbyChat() && gSavedPerAccountSettings.getBOOL("NearbyChatIsNotCollapsed"))
+		{
+			onCollapseToLine(this);
+		}
 		mInputButtonPanel->setVisible(isTornOff());
 	}
 
@@ -356,7 +362,7 @@ void LLFloaterIMSessionTab::draw()
 		// Restart the refresh timer
 		mRefreshTimer->setTimerExpirySec(REFRESH_INTERVAL);
 	}
-	
+
 	LLTransientDockableFloater::draw();
 }
 
@@ -698,10 +704,12 @@ void LLFloaterIMSessionTab::updateHeaderAndToolbar()
 			&& !mIsP2PChat;
 
 	mParticipantListAndHistoryStack->collapsePanel(mParticipantListPanel, !is_participant_list_visible);
+    mParticipantListPanel->setVisible(is_participant_list_visible);
 
 	// Display collapse image (<<) if the floater is hosted
 	// or if it is torn off but has an open control panel.
 	bool is_expanded = is_not_torn_off || is_participant_list_visible;
+    
 	mExpandCollapseBtn->setImageOverlay(getString(is_expanded ? "collapse_icon" : "expand_icon"));
 	mExpandCollapseBtn->setToolTip(
 			is_not_torn_off?
@@ -818,14 +826,15 @@ void LLFloaterIMSessionTab::onSlide(LLFloaterIMSessionTab* self)
 	{
 		if (!self->mIsP2PChat)
 		{
+            // The state must toggle the collapsed state of the panel
             bool should_be_expanded = self->mParticipantListPanel->isCollapsed();
 
-			// Expand/collapse the participant list panel
-            self->mParticipantListAndHistoryStack->collapsePanel(self->mParticipantListPanel, !should_be_expanded);
-            self->mParticipantListPanel->setVisible(should_be_expanded);
+			// Update the expand/collapse flag of the participant list panel and save it
             gSavedSettings.setBOOL("IMShowControlPanel", should_be_expanded);
             self->mIsParticipantListExpanded = should_be_expanded;
-			self->mExpandCollapseBtn->setImageOverlay(self->getString(should_be_expanded ? "collapse_icon" : "expand_icon"));
+            
+            // Refresh for immediate feedback
+            self->refreshConversation();
 		}
 	}
 
@@ -863,7 +872,7 @@ void LLFloaterIMSessionTab::reshapeFloater(bool collapse)
 		enableResizeCtrls(true, true, true);
 
 	}
-
+	saveCollapsedState();
 	setShape(floater_rect, true);
 	mBodyStack->updateLayout();
 
@@ -885,6 +894,7 @@ void LLFloaterIMSessionTab::restoreFloater()
 		mBodyStack->updateLayout();
 		mExpandCollapseLineBtn->setImageOverlay(getString("expandline_icon"));
 		setMessagePaneExpanded(true);
+		saveCollapsedState();
 		enableResizeCtrls(true, true, true);
 	}
 }
@@ -1060,6 +1070,14 @@ LLConversationItem* LLFloaterIMSessionTab::getCurSelectedViewModelItem()
 	return conversationItem;
 }
 
+void LLFloaterIMSessionTab::saveCollapsedState()
+{
+	LLFloaterIMSessionTab* conversp = LLFloaterIMSessionTab::getConversation(mSessionID);
+	if(conversp->isNearbyChat())
+	{
+		gSavedPerAccountSettings.setBOOL("NearbyChatIsNotCollapsed", isMessagePaneExpanded());
+	}
+}
 BOOL LLFloaterIMSessionTab::handleKeyHere(KEY key, MASK mask )
 {
 	if(mask == MASK_ALT)