tdf#150639 Fix sidebar width too narrow

The mnWidthOnSplitterButtonDown is initialized to 0 at program start.
This makes every call to take the else case until the user manually changes the
width, but some decks such as Master Slides have the mnMinimalWidth too low which
makes them too narrow for the content they should display to the user.

Change-Id: I8fc4924f777770dedbdc8d162ceceb620ff80e59
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/157596
Tested-by: Jenkins
Tested-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/sfx2/source/sidebar/SidebarController.cxx b/sfx2/source/sidebar/SidebarController.cxx
index 4798e1a33435..c6137d94d0e8 100644
--- a/sfx2/source/sidebar/SidebarController.cxx
+++ b/sfx2/source/sidebar/SidebarController.cxx
@@ -658,7 +658,12 @@ void SidebarController::OpenThenToggleDeck (
         if(mnWidthOnSplitterButtonDown > 0 && mnWidthOnSplitterButtonDown > nRequestedWidth){
             SetChildWindowWidth(mnWidthOnSplitterButtonDown);
         }else{
-            SetChildWindowWidth(nRequestedWidth);
+            // tdf#150639 The mnWidthOnSplitterButtonDown is initialized to 0 at program start.
+            // This makes every call to take the else case until the user manually changes the
+            // width, but some decks such as Master Slides have the mnMinimalWidth too low which
+            // makes them too narrow for the content they should display to the user.
+            SetChildWindowWidth(nRequestedWidth > mnSavedSidebarWidth ? nRequestedWidth
+                                                                      : mnSavedSidebarWidth);
         }
     }
 }