winaccessibility: replace mysterious and inexplicable locking strategy

Do the conservative thing and lock the SolarMutex at every UNO API entry
point.

Change-Id: I51afffada975df7ee3435784aa050a2c19cd0ac8

winaccessibility/inc/AccEventListener.hxx

@@ -45,7 +45,6 @@ protected:
     AccObjectManagerAgent* pAgent;
     //disposed state indicator
     bool  m_isDisposed;
-    mutable ::osl::Mutex aRemoveMutex;
 public:
     AccEventListener( com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent);
     virtual ~AccEventListener();

winaccessibility/inc/AccObjectWinManager.hxx

@@ -72,9 +72,6 @@ private:
     AccObjectManagerAgent*   pAgent;
     static AccObjectWinManager* me;
     ResIDGenerator ResIdGen;
-    mutable ::osl::Mutex aDeleteMutex;
-    mutable ::osl::Mutex aNotifyMutex;
-    mutable ::osl::Mutex maATInterfaceMutex;
 
     AccObjectWinManager(AccObjectManagerAgent* Agent=NULL);
 

winaccessibility/source/service/AccComponentEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccComponentEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -47,6 +49,8 @@ AccComponentEventListener::~AccComponentEventListener()
 void  AccComponentEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::VALUE_CHANGED:

winaccessibility/source/service/AccContainerEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccContainerEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -47,6 +49,8 @@ AccContainerEventListener::~AccContainerEventListener()
 void  AccContainerEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     short role = GetRole();
     switch (aEvent.EventId)
     {

winaccessibility/source/service/AccDescendantManagerEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccDescendantManagerEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -47,6 +49,8 @@ AccDescendantManagerEventListener::~AccDescendantManagerEventListener()
 void  AccDescendantManagerEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::SELECTION_CHANGED:

winaccessibility/source/service/AccDialogEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccDialogEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -44,6 +46,8 @@ AccDialogEventListener::~AccDialogEventListener()
 void  AccDialogEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::CHILD:

winaccessibility/source/service/AccEventListener.cxx

@@ -20,6 +20,9 @@
 #include <cppuhelper/bootstrap.hxx>
 #include <com/sun/star/bridge/XUnoUrlResolver.hpp>
 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
+
+#include <vcl/svapp.hxx>
+
 #include <toolkit/awt/Vclxwindow.hxx>
 
 #ifndef _SV_SYSDATA_HXX
@@ -63,6 +66,7 @@ AccEventListener::~AccEventListener()
 void  AccEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
 
     switch (aEvent.EventId)
     {
@@ -230,7 +234,6 @@ void AccEventListener::RemoveMeFromBroadcaster()
 {
     try
     {
-        osl::MutexGuard aGuard(aRemoveMutex);
         if(m_isDisposed)
             return;
         //get accessible context
@@ -276,6 +279,8 @@ void AccEventListener::RemoveMeFromBroadcaster()
 void AccEventListener::disposing( const ::com::sun::star::lang::EventObject& /*Source*/ )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     RemoveMeFromBroadcaster();
 }
 

winaccessibility/source/service/AccFrameEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccFrameEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -50,6 +52,8 @@ AccFrameEventListener::~AccFrameEventListener()
 void  AccFrameEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::CHILD:

winaccessibility/source/service/AccListEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccListEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -46,6 +48,8 @@ AccListEventListener::~AccListEventListener()
  */
 void  AccListEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:

winaccessibility/source/service/AccMenuEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccMenuEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -44,6 +46,8 @@ AccMenuEventListener::~AccMenuEventListener()
 void  AccMenuEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::CHILD:

winaccessibility/source/service/AccObjectWinManager.cxx

@@ -134,8 +134,6 @@ AccObjectWinManager::~AccObjectWinManager()
 
 long AccObjectWinManager::Get_ToATInterface( HWND hWnd, long lParam, long wParam)
 {
-    osl::MutexGuard localGuard(maATInterfaceMutex);//
-
     IMAccessible* pRetIMAcc = NULL;
 
     if(lParam == OBJID_CLIENT )
@@ -216,7 +214,8 @@ AccObject* AccObjectWinManager::GetTopWindowAccObj(HWND hWnd)
    */
 sal_Bool AccObjectWinManager::NotifyAccEvent(XAccessible* pXAcc,short state)
 {
-    osl::MutexGuard aGuard(aNotifyMutex);
+    // no idea why this checks for main thread but with this check no mutex
+    // is needed here (the test only accesses Application const member)
 
     if (!IsInMainThread())
     {
@@ -564,7 +563,6 @@ void AccObjectWinManager::DeleteFromHwndXAcc(XAccessible* pXAcc )
    */
 void AccObjectWinManager::DeleteChildrenAccObj(XAccessible* pXAcc)
 {
-    osl::MutexGuard aGuard( aDeleteMutex );
     AccObject* currentObj=NULL;
     AccObject* childObj=NULL;
     XAccessible* pTmpXAcc=NULL;
@@ -593,7 +591,6 @@ void AccObjectWinManager::DeleteChildrenAccObj(XAccessible* pXAcc)
    */
 void AccObjectWinManager::DeleteAccObj( XAccessible* pXAcc )
 {
-    osl::MutexGuard aGuard( aDeleteMutex );
     if( pXAcc == NULL )
         return;
     XIdToAccObjHash::iterator temp = XIdAccList.find(pXAcc);

winaccessibility/source/service/AccParagraphEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccParagraphEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -44,6 +46,8 @@ AccParagraphEventListener::~AccParagraphEventListener()
 void  AccParagraphEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::CARET_CHANGED:

winaccessibility/source/service/AccTableEventListener.cxx

@@ -24,6 +24,8 @@
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 #include <com/sun/star/accessibility/AccessibleTableModelChange.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccTableEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -45,6 +47,8 @@ AccTableEventListener::~AccTableEventListener()
 void  AccTableEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
 throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:

winaccessibility/source/service/AccTextComponentEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccTextComponentEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"

winaccessibility/source/service/AccTopWindowListener.cxx

@@ -24,6 +24,7 @@
 #include <toolkit/awt/Vclxwindow.hxx>
 
 #include <vcl/sysdata.hxx>
+#include <vcl/svapp.hxx>
 
 #include "AccTopWindowListener.hxx"
 #include "unomsaaevent.hxx"
@@ -141,6 +142,8 @@ void AccTopWindowListener::windowOpened( const ::com::sun::star::lang::EventObje
     if ( !pAccessible )
         return;
 
+    SolarMutexGuard g;
+
     HandleWindowOpened( pAccessible );
 }
 

winaccessibility/source/service/AccTreeEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccTreeEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -43,6 +45,8 @@ AccTreeEventListener::~AccTreeEventListener()
  */
 void  AccTreeEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:

winaccessibility/source/service/AccWindowEventListener.cxx

@@ -23,6 +23,8 @@
 #include <com/sun/star/accessibility/AccessibleRole.hpp>
 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
+#include <vcl/svapp.hxx>
+
 #include "AccWindowEventListener.hxx"
 #include "AccObjectManagerAgent.hxx"
 #include "unomsaaevent.hxx"
@@ -43,6 +45,8 @@ AccWindowEventListener::~AccWindowEventListener()
  */
 void  AccWindowEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException)
 {
+    SolarMutexGuard g;
+
     switch (aEvent.EventId)
     {
     case AccessibleEventId::CHILD:

winaccessibility/source/service/checkmt.cxx

@@ -28,9 +28,4 @@ bool IsInMainThread()
         return false;
 }
 
-comphelper::SolarMutex& GetSolarMutex()
-{
-    return Application::GetSolarMutex();
-}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

winaccessibility/source/service/checkmt.hxx

@@ -23,6 +23,4 @@
 
 bool IsInMainThread();
 
-comphelper::SolarMutex& GetSolarMutex();
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

winaccessibility/source/service/msaaservice_impl.cxx

@@ -114,6 +114,8 @@ void MSAAServiceImpl::initialize( Sequence< Any > const & args ) throw (Exceptio
    */
 sal_Int32 MSAAServiceImpl::getAccObjectPtr ( long hWnd, long lParam, long wParam) throw (RuntimeException)
 {
+    SolarMutexGuard g;
+
     return GetMSComPtr( hWnd, lParam, wParam );
 }
 
@@ -125,6 +127,8 @@ sal_Int32 MSAAServiceImpl::getAccObjectPtr ( long hWnd, long lParam, long wParam
    */
 void MSAAServiceImpl::handleWindowOpened( sal_Int32 nAcc)
 {
+    SolarMutexGuard g;
+
     SAL_INFO( "iacc2", "Window opened " << nAcc );
     handleWindowOpened_impl( nAcc );
 }
@@ -308,6 +312,8 @@ MSAAServiceImpl::~MSAAServiceImpl()
 
 void MSAAServiceImpl::dispose()
 {
+    SolarMutexGuard g;
+
     // As all folders and streams contain references to their parents,
     // we must remove these references so that they will be deleted when
     // the hash_map of the root folder is cleared, releasing all subfolders