From: Juergen Spitzmueller <spitz@lyx.org>
Date: Wed, 8 Mar 2023 07:24:38 +0000 (+0100)
Subject: Check for invalid indexes in Module selection
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=c227a4af41771771f87fd073ebaba2572d668ab3;p=features.git

Check for invalid indexes in Module selection

This should fix crashes when moving with pressed mouse buttons on
category nods
---

diff --git a/src/frontends/qt/GuiDocument.cpp b/src/frontends/qt/GuiDocument.cpp
index 8af560681c..3a8ae85796 100644
--- a/src/frontends/qt/GuiDocument.cpp
+++ b/src/frontends/qt/GuiDocument.cpp
@@ -324,6 +324,9 @@ void ModuleSelectionManager::updateAddPB()
 	}
 
 	QModelIndex const & idx = availableLV->selectionModel()->currentIndex();
+	
+	if (!idx.isValid())
+		return;
 
 	if (getAvailableModel()->itemFromIndex(idx)->hasChildren()) {
 		// This is a category header
@@ -3337,6 +3340,9 @@ void GuiDocument::updateModuleInfo()
 	}
 	QModelIndex const & idx = lv->selectionModel()->currentIndex();
 
+	if (!idx.isValid())
+		return;
+
 	if (!focus_on_selected
 	    && modules_av_model_.itemFromIndex(idx)->hasChildren()) {
 		// This is a category header