From d5d7883fdecfb2c98c880ee2e957a1e34cba45bf Mon Sep 17 00:00:00 2001
From: Miklos Vajna <vmiklos@collabora.com>
Date: Fri, 27 Sep 2024 08:52:57 +0200
Subject: desktop lok: fix crash in getStyles()

Crashreport backtrace:

> program/libmergedlo.so
>       getStyles
>               desktop/source/lib/init.cxx:6411
> program/libmergedlo.so
>       doc_getCommandValues
>               desktop/source/lib/init.cxx:6666

Which is probably a call on an already disposed document. Fix it similar
to how getFonts() does it.

Change-Id: I1744bd04b7ebdea1b69ca121b8cfa47314d67528
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/174372
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
---
 desktop/source/lib/init.cxx | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'desktop/source')

diff --git a/desktop/source/lib/init.cxx b/desktop/source/lib/init.cxx
index d8d217d571ae..043bc769450e 100644
--- a/desktop/source/lib/init.cxx
+++ b/desktop/source/lib/init.cxx
@@ -6413,6 +6413,10 @@ static char* getStyles(LibreOfficeKitDocument* pThis, const char* pCommand)
     aTree.put("commandName", pCommand);
     uno::Reference<css::style::XStyleFamiliesSupplier> xStyleFamiliesSupplier(pDocument->mxComponent, uno::UNO_QUERY);
     const uno::Reference<container::XNameAccess> xStyleFamilies = xStyleFamiliesSupplier->getStyleFamilies();
+    if (!xStyleFamilies.is())
+    {
+        return nullptr;
+    }
     const uno::Sequence<OUString> aStyleFamilies = xStyleFamilies->getElementNames();
 
     static constexpr OUString aWriterStyles[] =
-- 
cgit