sfx2: add missing locks to FrameActionListener

Change-Id: I67db5c42d1aea39cbf650de7854be853fc78e8a9
(cherry picked from commit 4950c30e633ac2d1a12a9e4b086478ac7d4f790c)

1 files changed, 4 insertions, 0 deletions

diff --git a/sfx2/source/sidebar/ControllerItem.cxx b/sfx2/source/sidebar/ControllerItem.cxx
index a0de0e3ebae3..b2cdc7245262 100644
--- a/sfx2/source/sidebar/ControllerItem.cxx
+++ b/sfx2/source/sidebar/ControllerItem.cxx
@@ -62,6 +62,7 @@ namespace
         }
         virtual void SAL_CALL disposing (void) SAL_OVERRIDE
         {
+            SolarMutexGuard g;
             if (mxFrame.is())
                 mxFrame->removeFrameActionListener(this);
         }
@@ -69,12 +70,15 @@ namespace
             throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE
         {
             (void)rEvent;
+
+            SolarMutexGuard g;
             mrControllerItem.ResetFrame();
             mxFrame = NULL;
         }
         virtual void SAL_CALL frameAction (const css::frame::FrameActionEvent& rEvent)
             throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE
         {
+            SolarMutexGuard g;
             if (rEvent.Action == frame::FrameAction_CONTEXT_CHANGED)
                 mrControllerItem.NotifyFrameContextChange();
         }