[Libreoffice-commits] core.git: Branch 'private/jmux/scheduler-fixes' - 47 commits - compilerplugins/clang configure.ac cppuhelper/source cui/source cui/uiconfig dtrans/source extensions/source filter/source framework/source include/cppuhelper include/oox include/tools include/vcl ios/CustomTarget_Lo_Xcconfig.mk ios/CustomTarget_Prototype_app.mk ios/DISCLAIMER_WARNING ios/experimental ios/.gitignore ios/LibreOfficeKit ios/LibreOfficeLight ios/lo.xcconfig.in ios/README odk/source oox/source pyuno/Module_pyuno.mk pyuno/PythonTest_pytests.mk pyuno/qa sal/osl sal/qa sal/rtl sal/textenc sc/qa sc/source sd/qa sfx2/source shell/source svx/source sw/qa sw/source toolkit/source tools/source ucb/source unoxml/source vbahelper/source vcl/headless vcl/inc vcl/Library_vcl.mk vcl/osx vcl/quartz vcl/README.scheduler vcl/source vcl/unx vcl/win writerfilter/source writerperfect/qa xmlscript/source xmlsecurity/source

Jan-Marek Glogowski glogow at fbihome.de
Wed Sep 27 08:53:39 UTC 2017


Rebased ref, commits from common ancestor:
commit 2fca5f4fe2a4fd9961b98c6af1a5f4a14d3c9760
Author: Jan-Marek Glogowski <glogow at fbihome.de>
Date:   Tue Sep 26 19:06:51 2017 +0200

    tdf#112605 OSX refactor SalAquaTimer
    
    Drops all the static calls and variables from SalAquaTimer
    and moves all timer handling logic inside the class.
    
    This also fixes the leak in in timerElapsed.
    
    Change-Id: Ie7a1a8fffb70b8579ec6876eed10a275d2f06d27

diff --git a/vcl/inc/osx/saltimer.h b/vcl/inc/osx/saltimer.h
index 86964115d648..ad6adf9d00ed 100644
--- a/vcl/inc/osx/saltimer.h
+++ b/vcl/inc/osx/saltimer.h
@@ -43,6 +43,12 @@ public:
 
 class AquaSalTimer : public SalTimer
 {
+    NSTimer    *m_pRunningTimer;
+    sal_uInt32  m_nTimerStartTicks;  ///< system ticks at timer start % SAL_MAX_UINT32
+
+    void queueDispatchTimerEvent( bool bAtStart );
+    void callTimerCallback();
+
 public:
     AquaSalTimer();
     virtual ~AquaSalTimer() override;
@@ -50,13 +56,18 @@ public:
     void Start( sal_uLong nMS ) override;
     void Stop() override;
 
-    static void handleStartTimerEvent( NSEvent* pEvent );
-    static void handleDispatchTimerEvent();
+    void handleStartTimerEvent( NSEvent* pEvent );
+    void handleDispatchTimerEvent( NSEvent* pEvent );
+    void handleTimerElapsed();
 
-    static NSTimer* pRunningTimer;
-    static bool bDispatchTimer;
+    inline bool IsTimerElapsed() const;
 };
 
+inline bool AquaSalTimer::IsTimerElapsed() const
+{
+    return 0 != m_nTimerStartTicks;
+}
+
 #endif // INCLUDED_VCL_INC_OSX_SALTIMER_H
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/osx/salinst.cxx b/vcl/osx/salinst.cxx
index a57879802f52..0d50fdbce585 100644
--- a/vcl/osx/salinst.cxx
+++ b/vcl/osx/salinst.cxx
@@ -426,11 +426,13 @@ bool AquaSalInstance::IsMainThread() const
 
 void AquaSalInstance::handleAppDefinedEvent( NSEvent* pEvent )
 {
+    AquaSalTimer *pTimer = static_cast<AquaSalTimer*>( ImplGetSVData()->maSchedCtx.mpSalTimer );
     int nSubtype = [pEvent subtype];
     switch( nSubtype )
     {
     case AppStartTimerEvent:
-        AquaSalTimer::handleStartTimerEvent( pEvent );
+        if ( pTimer )
+            pTimer->handleStartTimerEvent( pEvent );
         break;
     case AppEndLoopEvent:
         [NSApp stop: NSApp];
@@ -450,7 +452,8 @@ void AquaSalInstance::handleAppDefinedEvent( NSEvent* pEvent )
         break;
     }
     case DispatchTimerEvent:
-        AquaSalTimer::handleDispatchTimerEvent();
+        if ( pTimer )
+            pTimer->handleDispatchTimerEvent( pEvent );
         break;
 #if !HAVE_FEATURE_MACOSX_SANDBOX
     case AppleRemoteControlEvent: // Defined in <apple_remote/RemoteMainController.h>
@@ -598,12 +601,11 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
         {
             SolarMutexReleaser aReleaser;
 
-            NSDate* pDt = AquaSalTimer::pRunningTimer ? [AquaSalTimer::pRunningTimer fireDate] : [NSDate distantFuture];
 SAL_WNODEPRECATED_DECLARATIONS_PUSH
     // 'NSAnyEventMask' is deprecated: first deprecated in macOS 10.12
             pEvent = [NSApp nextEventMatchingMask: NSAnyEventMask
 SAL_WNODEPRECATED_DECLARATIONS_POP
-                            untilDate: pDt
+                            untilDate: [NSDate distantFuture]
                             inMode: NSDefaultRunLoopMode
                             dequeue: YES];
             if( pEvent )
@@ -682,14 +684,9 @@ bool AquaSalInstance::AnyInput( VclInputFlags nType )
 
     if( nType & VclInputFlags::TIMER )
     {
-        if( AquaSalTimer::pRunningTimer )
-        {
-            NSDate* pDt = [AquaSalTimer::pRunningTimer fireDate];
-            if( pDt && [pDt timeIntervalSinceNow] < 0 )
-            {
-                return true;
-            }
-        }
+        AquaSalTimer *pTimer = static_cast<AquaSalTimer*>( ImplGetSVData()->maSchedCtx.mpSalTimer );
+        if (pTimer && pTimer->IsTimerElapsed())
+            return true;
     }
 
     unsigned/*NSUInteger*/ nEventMask = 0;
diff --git a/vcl/osx/salnstimer.mm b/vcl/osx/salnstimer.mm
index c9b657dcd776..9647bb6b87c1 100644
--- a/vcl/osx/salnstimer.mm
+++ b/vcl/osx/salnstimer.mm
@@ -27,16 +27,12 @@
 
 @implementation TimerCallbackCaller
 
--(void)timerElapsed:(NSTimer*)pTimer
+-(void)timerElapsed:(NSTimer*)pNSTimer
 {
-    (void)pTimer;
-    // nil the timer, as it is just invalidated after the firing function
-    AquaSalTimer::pRunningTimer = nil;
-    const AquaSalInstance *pInst = GetSalData()->mpFirstInstance;
-    if (pInst->mbIsLiveResize)
-        AquaSalTimer::handleDispatchTimerEvent();
-    else
-        ImplNSAppPostEvent( AquaSalInstance::DispatchTimerEvent, YES );
+    (void) pNSTimer;
+    AquaSalTimer *pTimer = static_cast<AquaSalTimer*>( ImplGetSVData()->maSchedCtx.mpSalTimer );
+    if (pTimer)
+        pTimer->handleTimerElapsed();
 }
 
 @end
diff --git a/vcl/osx/saltimer.cxx b/vcl/osx/saltimer.cxx
index e442fcf05335..9c5bb7a7db9e 100644
--- a/vcl/osx/saltimer.cxx
+++ b/vcl/osx/saltimer.cxx
@@ -20,6 +20,7 @@
 #include <sal/config.h>
 
 #include <rtl/math.hxx>
+#include <tools/time.hxx>
 
 #include "osx/saltimer.h"
 #include "osx/salnstimer.h"
@@ -27,9 +28,6 @@
 #include "osx/salframe.h"
 #include "osx/salinst.h"
 
-NSTimer* AquaSalTimer::pRunningTimer = nil;
-
-static void ImplSalStopTimer();
 
 void ImplNSAppPostEvent( short nEventId, BOOL bAtStart, int nUserData )
 {
@@ -73,7 +71,16 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
     [NSApp postEvent: pEvent atStart: bAtStart];
 }
 
-static void ImplSalStartTimer( sal_uLong nMS )
+void AquaSalTimer::queueDispatchTimerEvent( bool bAtStart )
+{
+    Stop();
+    m_nTimerStartTicks = tools::Time::GetMonotonicTicks() % SAL_MAX_UINT32;
+    if ( 0 == m_nTimerStartTicks )
+        m_nTimerStartTicks++;
+    ImplNSAppPostEvent( AquaSalInstance::DispatchTimerEvent, bAtStart, m_nTimerStartTicks );
+}
+
+void AquaSalTimer::Start( sal_uLong nMS )
 {
     SalData* pSalData = GetSalData();
 
@@ -84,27 +91,24 @@ static void ImplSalStartTimer( sal_uLong nMS )
     }
 
     if ( 0 == nMS && !pSalData->mpFirstInstance->mbIsLiveResize )
-    {
-        ImplSalStopTimer();
-        ImplNSAppPostEvent( AquaSalInstance::DispatchTimerEvent, NO );
-    }
+        queueDispatchTimerEvent( NO );
     else
     {
         NSTimeInterval aTI = double(nMS) / 1000.0;
-        if( AquaSalTimer::pRunningTimer != nil )
+        if( m_pRunningTimer != nil )
         {
-            if ([AquaSalTimer::pRunningTimer isValid] && rtl::math::approxEqual(
-                    [AquaSalTimer::pRunningTimer timeInterval], aTI))
+            if ([m_pRunningTimer isValid] && rtl::math::approxEqual(
+                    [m_pRunningTimer timeInterval], aTI))
             {
                 // set new fire date
-                [AquaSalTimer::pRunningTimer setFireDate: [NSDate dateWithTimeIntervalSinceNow: aTI]];
+                [m_pRunningTimer setFireDate: [NSDate dateWithTimeIntervalSinceNow: aTI]];
             }
             else
-                ImplSalStopTimer();
+                Stop();
         }
-        if( AquaSalTimer::pRunningTimer == nil )
+        if( m_pRunningTimer == nil )
         {
-            AquaSalTimer::pRunningTimer = [[NSTimer scheduledTimerWithTimeInterval: aTI
+            m_pRunningTimer = [[NSTimer scheduledTimerWithTimeInterval: aTI
                                                     target: [[[TimerCallbackCaller alloc] init] autorelease]
                                                     selector: @selector(timerElapsed:)
                                                     userInfo: nil
@@ -113,22 +117,23 @@ static void ImplSalStartTimer( sal_uLong nMS )
             /* #i84055# add timer to tracking run loop mode,
                so they also elapse while e.g. life resize
             */
-            [[NSRunLoop currentRunLoop] addTimer: AquaSalTimer::pRunningTimer forMode: NSEventTrackingRunLoopMode];
+            [[NSRunLoop currentRunLoop] addTimer: m_pRunningTimer forMode: NSEventTrackingRunLoopMode];
         }
     }
 }
 
-static void ImplSalStopTimer()
+void AquaSalTimer::Stop()
 {
-    if( AquaSalTimer::pRunningTimer != nil )
+    if( m_pRunningTimer != nil )
     {
-        [AquaSalTimer::pRunningTimer invalidate];
-        [AquaSalTimer::pRunningTimer release];
-        AquaSalTimer::pRunningTimer = nil;
+        [m_pRunningTimer invalidate];
+        [m_pRunningTimer release];
+        m_pRunningTimer = nil;
     }
+    m_nTimerStartTicks = 0;
 }
 
-void AquaSalTimer::handleDispatchTimerEvent()
+void AquaSalTimer::callTimerCallback()
 {
     ImplSVData* pSVData = ImplGetSVData();
     SolarMutexGuard aGuard;
@@ -136,6 +141,23 @@ void AquaSalTimer::handleDispatchTimerEvent()
         pSVData->maSchedCtx.mpSalTimer->CallCallback();
 }
 
+void AquaSalTimer::handleTimerElapsed()
+{
+    // Stop the timer, as it is just invalidated after the firing function
+    Stop();
+
+    if ( GetSalData()->mpFirstInstance->mbIsLiveResize )
+        callTimerCallback();
+    else
+        queueDispatchTimerEvent( YES );
+}
+
+void AquaSalTimer::handleDispatchTimerEvent( NSEvent *pEvent )
+{
+    if (m_nTimerStartTicks == [pEvent data1])
+        callTimerCallback();
+}
+
 void AquaSalTimer::handleStartTimerEvent( NSEvent* pEvent )
 {
     ImplSVData* pSVData = ImplGetSVData();
@@ -144,29 +166,21 @@ void AquaSalTimer::handleStartTimerEvent( NSEvent* pEvent )
         NSTimeInterval posted = [pEvent timestamp] + NSTimeInterval([pEvent data1])/1000.0;
         NSTimeInterval current = [NSDate timeIntervalSinceReferenceDate];
         if( (posted - current) <= 0.0 )
-            handleDispatchTimerEvent();
+            queueDispatchTimerEvent( YES );
         else
-            ImplSalStartTimer( sal_uLong( [pEvent data1] ) );
+            Start( sal_uLong( [pEvent data1] ) );
     }
 }
 
 AquaSalTimer::AquaSalTimer( )
+    : m_pRunningTimer( nullptr )
+    , m_nTimerStartTicks( 0 )
 {
 }
 
 AquaSalTimer::~AquaSalTimer()
 {
-    ImplSalStopTimer();
-}
-
-void AquaSalTimer::Start( sal_uLong nMS )
-{
-    ImplSalStartTimer( nMS );
-}
-
-void AquaSalTimer::Stop()
-{
-    ImplSalStopTimer();
+    Stop();
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
commit 68cfba6b00a850921bb7a14dc929eaa8aa9e0589
Author: Jan-Marek Glogowski <glogow at fbihome.de>
Date:   Tue Sep 5 18:54:49 2017 +0200

    OSX revert fix for i#90083
    
    Part of commit d6f7c94e5c27ba02ff5c3229760c9808cc9b5bea
    
    At least on my current OSX box application based window switching
    "just works" "out of the box", even without the code.
    
    With the replacement of the list with a set, the result is a little
    bit unexpected and as all the code has a comment "FIXME: lousy
    workaround", my fix is simply to drop it.
    
    Change-Id: I456503a74d8cddbd1e81b4a826b94381b424c78c

diff --git a/vcl/inc/osx/vclnsapp.h b/vcl/inc/osx/vclnsapp.h
index c899ffce59d1..39bd3170abaf 100644
--- a/vcl/inc/osx/vclnsapp.h
+++ b/vcl/inc/osx/vclnsapp.h
@@ -61,8 +61,6 @@ class AquaSalFrame;
 #endif
 -(BOOL)applicationShouldHandleReopen: (NSApplication*)pApp hasVisibleWindows: (BOOL)bWinVisible;
 -(void)setDockIconClickHandler: (NSObject*)pHandler;
--(void)cycleFrameForward: (AquaSalFrame*)pCurFrame;
--(void)cycleFrameBackward: (AquaSalFrame*)pCurFrame;
 @end
 
 #endif // INCLUDED_VCL_INC_OSX_VCLNSAPP_H
diff --git a/vcl/osx/vclnsapp.mm b/vcl/osx/vclnsapp.mm
index f06c9fd0b2ab..dafcdb97aca5 100644
--- a/vcl/osx/vclnsapp.mm
+++ b/vcl/osx/vclnsapp.mm
@@ -136,24 +136,6 @@ SAL_WNODEPRECATED_DECLARATIONS_PUSH
                 }
             }
 
-            // #i90083# handle frame switching
-            // FIXME: lousy workaround
-            if( (nModMask & (NSControlKeyMask|NSAlternateKeyMask)) == 0 )
-            {
-                if( [[pEvent characters] isEqualToString: @"<"] ||
-                    [[pEvent characters] isEqualToString: @"~"] )
-                {
-                    [self cycleFrameForward: pFrame];
-                    return;
-                }
-                else if( [[pEvent characters] isEqualToString: @">"] ||
-                         [[pEvent characters] isEqualToString: @"`"] )
-                {
-                    [self cycleFrameBackward: pFrame];
-                    return;
-                }
-            }
-
             // get information whether the event was handled; keyDown returns nothing
             GetSalData()->maKeyEventAnswer[ pEvent ] = false;
             bool bHandled = false;
@@ -245,77 +227,6 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
     [super sendEvent: pEvent];
 }
 
--(void)cycleFrameForward: (AquaSalFrame*)pCurFrame
-{
-    // find current frame in list
-    auto &rFrames( GetSalData()->mpFirstInstance->getFrames() );
-    auto it = rFrames.find( pCurFrame );
-    if( it != rFrames.end() )
-    {
-        ++it;
-        // now find the next frame (or end)
-        for( ; it != rFrames.end(); ++it )
-        {
-            auto pFrame = static_cast<const AquaSalFrame*>( *it );
-            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
-            {
-                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
-                return;
-            }
-        }
-        // cycle around, find the next up to pCurFrame
-        for( it = rFrames.begin(); *it != pCurFrame; ++it )
-        {
-            auto pFrame = static_cast<const AquaSalFrame*>( *it );
-            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
-            {
-                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
-                return;
-            }
-        }
-    }
-}
-
-template< class Iterator >
-std::reverse_iterator<Iterator> make_reverse_iterator( Iterator i )
-{
-    return std::reverse_iterator<Iterator>(i);
-}
-
--(void)cycleFrameBackward: (AquaSalFrame*)pCurFrame
-{
-    // do the same as cycleFrameForward only with a reverse iterator
-
-    // find current frame in list
-    auto &rFrames( GetSalData()->mpFirstInstance->getFrames() );
-    auto search_it = rFrames.find( pCurFrame );
-    if( search_it != rFrames.end() )
-    {
-        auto it = ::make_reverse_iterator( search_it );
-        ++it;
-        // now find the next frame (or end)
-        for( ; it != rFrames.rend(); ++it )
-        {
-            auto pFrame = static_cast<const AquaSalFrame*>( *it );
-            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
-            {
-                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
-                return;
-            }
-        }
-        // cycle around, find the next up to pCurFrame
-        for( it = rFrames.rbegin(); *it != pCurFrame; ++it )
-        {
-            auto pFrame = static_cast<const AquaSalFrame*>( *it );
-            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
-            {
-                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
-                return;
-            }
-        }
-    }
-}
-
 -(NSMenu*)applicationDockMenu:(NSApplication *)sender
 {
     (void)sender;
commit 59e24ca24d2d4d49b0ca64c6bf4096914628346d
Author: Jan-Marek Glogowski <glogow at fbihome.de>
Date:   Mon Sep 4 17:40:13 2017 +0200

    Unify SalUserEvent handling
    
    Change-Id: I188b567e44fd79c162b2d9cabbd771d1f66c7dc4

diff --git a/vcl/Library_vcl.mk b/vcl/Library_vcl.mk
index 1aa3095d0a6c..5d62542e8b13 100644
--- a/vcl/Library_vcl.mk
+++ b/vcl/Library_vcl.mk
@@ -321,6 +321,7 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
     vcl/source/app/help \
     vcl/source/app/i18nhelp \
 	vcl/source/app/idle \
+	vcl/source/app/salusereventlist \
     vcl/source/app/salvtables \
 	vcl/source/app/scheduler \
     vcl/source/app/session \
diff --git a/vcl/headless/svpframe.cxx b/vcl/headless/svpframe.cxx
index 9a086c0b3d6a..08c6a09ef834 100644
--- a/vcl/headless/svpframe.cxx
+++ b/vcl/headless/svpframe.cxx
@@ -94,10 +94,9 @@ SvpSalFrame::~SvpSalFrame()
         // pass focus to another frame, preferably a document style window
         if( s_pFocusFrame == nullptr )
         {
-            const std::list< SalFrame* >& rFrames( m_pInstance->getFrames() );
-            for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+            for (auto pSalFrame : m_pInstance->getFrames() )
             {
-                SvpSalFrame* pFrame = static_cast<SvpSalFrame*>(*it);
+                SvpSalFrame* pFrame = static_cast<SvpSalFrame*>( const_cast<SalFrame*>( pSalFrame ) );
                 if( pFrame->m_bVisible        &&
                     pFrame->m_pParent == nullptr &&
                     (pFrame->m_nStyle & (SalFrameStyleFlags::MOVEABLE |
diff --git a/vcl/headless/svpinst.cxx b/vcl/headless/svpinst.cxx
index ab8f91eac31f..5153c8952f4a 100644
--- a/vcl/headless/svpinst.cxx
+++ b/vcl/headless/svpinst.cxx
@@ -47,19 +47,6 @@
 // FIXME: remove when we re-work the svp mainloop
 #include "unx/salunxtime.h"
 
-bool SvpSalInstance::isFrameAlive( const SalFrame* pFrame ) const
-{
-    for( std::list< SalFrame* >::const_iterator it = m_aFrames.begin();
-         it != m_aFrames.end(); ++it )
-    {
-        if( *it == pFrame )
-        {
-            return true;
-        }
-    }
-    return false;
-}
-
 SvpSalInstance* SvpSalInstance::s_pDefaultInstance = nullptr;
 
 #if !defined(ANDROID) && !defined(IOS)
@@ -165,12 +152,8 @@ void SvpSalInstance::CreateWakeupPipe(bool log)
 
 #endif
 
-void SvpSalInstance::PostEvent(const SalFrame* pFrame, ImplSVEvent* pData, SalEvent nEvent)
+void SvpSalInstance::TriggerUserEventProcessing()
 {
-    {
-        osl::MutexGuard g(m_aEventGuard);
-        m_aUserEvents.emplace_back( pFrame, pData, nEvent );
-    }
     Wakeup();
 }
 
@@ -186,31 +169,6 @@ bool SvpSalInstance::PostedEventsInQueue()
 }
 #endif
 
-void SvpSalInstance::deregisterFrame( SalFrame* pFrame )
-{
-    m_aFrames.remove( pFrame );
-
-    osl::MutexGuard g(m_aEventGuard);
-    // cancel outstanding events for this frame
-    if( ! m_aUserEvents.empty() )
-    {
-        std::list< SalUserEvent >::iterator it = m_aUserEvents.begin();
-        do
-        {
-            if( it->m_pFrame == pFrame )
-            {
-                if (it->m_nEvent == SalEvent::UserEvent)
-                {
-                    delete it->m_pData;
-                }
-                it = m_aUserEvents.erase( it );
-            }
-            else
-                ++it;
-        } while( it != m_aUserEvents.end() );
-    }
-}
-
 void SvpSalInstance::Wakeup()
 {
 #ifndef IOS
@@ -304,44 +262,24 @@ SalBitmap* SvpSalInstance::CreateSalBitmap()
 #endif
 }
 
-bool SvpSalInstance::DoYield(bool bWait, bool bHandleAllCurrentEvents)
+void SvpSalInstance::ProcessEvent( SalUserEvent aEvent )
 {
-    // first, check for already queued events.
-    std::list< SalUserEvent > aEvents;
+    aEvent.m_pFrame->CallCallback( aEvent.m_nEvent, aEvent.m_pData );
+    if( aEvent.m_nEvent == SalEvent::Resize )
     {
-        osl::MutexGuard g(m_aEventGuard);
-        if( ! m_aUserEvents.empty() )
-        {
-            if( bHandleAllCurrentEvents )
-            {
-                aEvents = m_aUserEvents;
-                m_aUserEvents.clear();
-            }
-            else
-            {
-                aEvents.push_back( m_aUserEvents.front() );
-                m_aUserEvents.pop_front();
-            }
-        }
+        // this would be a good time to post a paint
+        const SvpSalFrame* pSvpFrame = static_cast<const SvpSalFrame*>( aEvent.m_pFrame);
+        pSvpFrame->PostPaint();
     }
+}
 
-    bool bEvent = !aEvents.empty();
-    if( bEvent )
-    {
-        for( std::list<SalUserEvent>::const_iterator it = aEvents.begin(); it != aEvents.end(); ++it )
-        {
-            if ( isFrameAlive( it->m_pFrame ) )
-            {
-                it->m_pFrame->CallCallback( it->m_nEvent, it->m_pData );
-                if( it->m_nEvent == SalEvent::Resize )
-                {
-                    // this would be a good time to post a paint
-                    const SvpSalFrame* pSvpFrame = static_cast<const SvpSalFrame*>(it->m_pFrame);
-                    pSvpFrame->PostPaint();
-                }
-            }
-        }
-    }
+
+bool SvpSalInstance::DoYield(bool bWait, bool bHandleAllCurrentEvents)
+{
+    // first, process current user events
+    bool bEvent = DispatchUserEvents( bHandleAllCurrentEvents );
+    if ( !bHandleAllCurrentEvents &&bEvent )
+        return true;
 
     bEvent = CheckTimeout() || bEvent;
 
diff --git a/vcl/headless/svpprn.cxx b/vcl/headless/svpprn.cxx
index 488f17bb4084..aa865cadfd0c 100644
--- a/vcl/headless/svpprn.cxx
+++ b/vcl/headless/svpprn.cxx
@@ -257,10 +257,9 @@ OUString SvpSalInstance::GetDefaultPrinter()
 
 void SvpSalInstance::PostPrintersChanged()
 {
-    const std::list< SalFrame* >& rList = SvpSalInstance::s_pDefaultInstance->getFrames();
-    for( std::list< SalFrame* >::const_iterator it = rList.begin();
-         it != rList.end(); ++it )
-        SvpSalInstance::s_pDefaultInstance->PostEvent( *it, nullptr, SalEvent::PrinterChanged );
+    SvpSalInstance *pInst = SvpSalInstance::s_pDefaultInstance;
+    for (auto pSalFrame : pInst->getFrames() )
+        pInst->PostEvent( const_cast<SalFrame*>( pSalFrame ), nullptr, SalEvent::PrinterChanged );
 }
 
 GenPspGraphics *SvpSalInstance::CreatePrintGraphics()
diff --git a/vcl/inc/headless/svpinst.hxx b/vcl/inc/headless/svpinst.hxx
index 0883981c4406..a411315c761d 100644
--- a/vcl/inc/headless/svpinst.hxx
+++ b/vcl/inc/headless/svpinst.hxx
@@ -25,6 +25,7 @@
 #include <salinst.hxx>
 #include <salwtype.hxx>
 #include <saltimer.hxx>
+#include <salusereventlist.hxx>
 #include <unx/geninst.h>
 #include <unx/genprn.h>
 
@@ -57,35 +58,18 @@ class GenPspGraphics;
 
 SalInstance* svp_create_SalInstance();
 
-class VCL_DLLPUBLIC SvpSalInstance : public SalGenericInstance
+class VCL_DLLPUBLIC SvpSalInstance : public SalGenericInstance, public SalUserEventList
 {
     timeval                 m_aTimeout;
     sal_uLong               m_nTimeoutMS;
     int                     m_pTimeoutFDS[2];
 
-    // internal event queue
-    struct SalUserEvent
-    {
-        const SalFrame*     m_pFrame;
-        ImplSVEvent*        m_pData;
-        SalEvent            m_nEvent;
-
-        SalUserEvent( const SalFrame* pFrame, ImplSVEvent* pData, SalEvent nEvent )
-                : m_pFrame( pFrame ),
-                  m_pData( pData ),
-                  m_nEvent( nEvent )
-        {}
-    };
-
-    osl::Mutex              m_aEventGuard;
-    std::list< SalUserEvent > m_aUserEvents;
-
-    std::list< SalFrame* >  m_aFrames;
-
-    bool                    isFrameAlive( const SalFrame* pFrame ) const;
-
     void                    DoReleaseYield( int nTimeoutMS );
 
+    virtual void            TriggerUserEventProcessing() override;
+    virtual void            ProcessEvent( SalUserEvent aEvent ) override;
+    void                    Wakeup();
+
 public:
     static SvpSalInstance*  s_pDefaultInstance;
 
@@ -95,20 +79,15 @@ public:
     void                    CloseWakeupPipe(bool log);
     void                    CreateWakeupPipe(bool log);
 
-    void                    PostEvent(const SalFrame* pFrame, ImplSVEvent* pData, SalEvent nEvent);
-
 #ifdef ANDROID
     bool                    PostedEventsInQueue();
 #endif
 
     void                    StartTimer( sal_uLong nMS );
     void                    StopTimer();
-    void                    Wakeup();
 
-    void                    registerFrame( SalFrame* pFrame ) { m_aFrames.push_back( pFrame ); }
-    void                    deregisterFrame( SalFrame* pFrame );
-    const std::list< SalFrame* >&
-                            getFrames() const { return m_aFrames; }
+    inline void             registerFrame( const SalFrame* pFrame );
+    inline void             deregisterFrame( const SalFrame* pFrame );
 
     bool                    CheckTimeout( bool bExecuteTimers = true );
 
@@ -171,6 +150,16 @@ public:
     virtual GenPspGraphics *CreatePrintGraphics() override;
 };
 
+inline void SvpSalInstance::registerFrame( const SalFrame* pFrame )
+{
+    insertFrame( pFrame );
+}
+
+inline void SvpSalInstance::deregisterFrame( const SalFrame* pFrame )
+{
+    eraseFrame( pFrame );
+}
+
 #endif // INCLUDED_VCL_INC_HEADLESS_SVPINST_HXX
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/osx/saldata.hxx b/vcl/inc/osx/saldata.hxx
index fbc28e05391d..f69366518be5 100644
--- a/vcl/inc/osx/saldata.hxx
+++ b/vcl/inc/osx/saldata.hxx
@@ -45,6 +45,7 @@
 
 #include "apple_remote/RemoteMainController.h"
 
+class AquaSalFrame;
 class AquaSalInstance;
 class SalObject;
 class SalFrame;
@@ -54,7 +55,6 @@ class SystemFontList;
 
 #define SAL_CLIPRECT_COUNT 16
 
-class AquaSalFrame;
 struct FrameHash : public std::hash<sal_IntPtr>
 {
     size_t operator()(const AquaSalFrame* frame) const
@@ -71,8 +71,6 @@ class SalData
 public:
     SALTIMERPROC                                  mpTimerProc;      // timer callback proc
     AquaSalInstance                              *mpFirstInstance;  // pointer of first instance
-    std::list<AquaSalFrame*>                      maFrames;         // list of all frames
-    std::unordered_set<const AquaSalFrame*,FrameHash>  maFrameCheck;// for fast check of frame existence
     std::list<AquaSalFrame*>                      maPresentationFrames;  // list of frames in presentation mode
     SalObject                                    *mpFirstObject;    // pointer of first object window
     SalVirtualDevice                             *mpFirstVD;        // first VirDev
diff --git a/vcl/inc/osx/salframe.h b/vcl/inc/osx/salframe.h
index e99a3175876d..f8cef1834106 100644
--- a/vcl/inc/osx/salframe.h
+++ b/vcl/inc/osx/salframe.h
@@ -26,6 +26,7 @@
 
 #include <vcl/sysdata.hxx>
 
+#include "osx/salinst.h"
 #include "osx/salmenu.h"
 #include "osx/saldata.hxx"
 #include "osx/osxvcltypes.h"
@@ -163,8 +164,7 @@ public:
     // trigger painting of the window
     void SendPaintEvent( const tools::Rectangle* pRect = nullptr );
 
-    static bool isAlive( const AquaSalFrame* pFrame )
-    { return GetSalData()->maFrameCheck.find( pFrame ) != GetSalData()->maFrameCheck.end(); }
+    static inline bool isAlive( const AquaSalFrame* pFrame );
 
     static AquaSalFrame* GetCaptureFrame() { return s_pCaptureFrame; }
 
@@ -204,6 +204,12 @@ private: // data
     AquaSalFrame& operator=(const AquaSalFrame&) = delete;
 };
 
+inline bool AquaSalFrame::isAlive( const AquaSalFrame* pFrame )
+{
+    AquaSalInstance *pInst = GetSalData()->mpFirstInstance;
+    return pInst && pInst->isFrameAlive( pFrame );
+}
+
 #endif // INCLUDED_VCL_INC_OSX_SALFRAME_H
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/osx/salinst.h b/vcl/inc/osx/salinst.h
index 0e30dfafb693..272cfc722d64 100644
--- a/vcl/inc/osx/salinst.h
+++ b/vcl/inc/osx/salinst.h
@@ -34,6 +34,8 @@
 
 #include "osx/runinmain.hxx"
 
+#include "salusereventlist.hxx"
+
 class AquaSalFrame;
 class SalFrame;
 class SalObject;
@@ -59,27 +61,18 @@ public:
     virtual bool IsCurrentThread() const override;
 };
 
-class AquaSalInstance : public SalInstance
+class AquaSalInstance : public SalInstance, public SalUserEventList
 {
-    struct SalUserEvent
-    {
-        AquaSalFrame*   mpFrame;
-        void*           mpData;
-        SalEvent        mnType;
-
-        SalUserEvent( AquaSalFrame* pFrame, void* pData, SalEvent nType ) :
-            mpFrame( pFrame ), mpData( pData ), mnType( nType )
-        {}
-    };
-
     bool RunInMainYield( bool bHandleAllCurrentEvents );
 
+    virtual void TriggerUserEventProcessing() override;
+    virtual void ProcessEvent( SalUserEvent aEvent ) override;
+
 public:
     SalYieldMutex*                          mpSalYieldMutex;        // Sal-Yield-Mutex
     OUString                                maDefaultPrinter;
     oslThreadIdentifier                     maMainThread;
     int                                     mnActivePrintJobs;
-    std::list< SalUserEvent >               maUserEvents;
     osl::Mutex                              maUserEventListMutex;
     osl::Condition                          maWaitingYieldCond;
     bool                                    mbIsLiveResize;
@@ -145,7 +138,6 @@ public:
 public:
     friend class AquaSalFrame;
 
-    void PostUserEvent( AquaSalFrame* pFrame, SalEvent nType, void* pData );
     void delayedSettingsChanged( bool bInvalidate );
 
     // Is this the NSAppThread?
diff --git a/vcl/inc/salusereventlist.hxx b/vcl/inc/salusereventlist.hxx
new file mode 100644
index 000000000000..94c32d4ba55a
--- /dev/null
+++ b/vcl/inc/salusereventlist.hxx
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_VCL_INC_SALUSEREVENTLIST_HXX
+#define INCLUDED_VCL_INC_SALUSEREVENTLIST_HXX
+
+#include <sal/config.h>
+#include <vcl/dllapi.h>
+#include <osl/mutex.hxx>
+
+#include <assert.h>
+
+#include <list>
+#include <set>
+
+class SalFrame;
+enum class SalEvent;
+
+class VCL_PLUGIN_PUBLIC SalUserEventList
+{
+public:
+    struct SalUserEvent
+    {
+        SalFrame*     m_pFrame;
+        void*         m_pData;
+        SalEvent      m_nEvent;
+
+        SalUserEvent( SalFrame* pFrame, void* pData, SalEvent nEvent )
+                : m_pFrame( pFrame ),
+                  m_pData( pData ),
+                  m_nEvent( nEvent )
+        {}
+
+        bool operator==(const SalUserEvent &aEvent) const
+        {
+            return m_pFrame == aEvent.m_pFrame
+                && m_pData == aEvent.m_pData
+                && m_nEvent== aEvent.m_nEvent;
+        }
+    };
+
+protected:
+    mutable osl::Mutex            m_aUserEventsMutex;
+    std::list< SalUserEvent >     m_aUserEvents;
+    std::list< SalUserEvent >     m_aProcessingUserEvents;
+    std::set< const SalFrame* >   m_aFrames;
+
+    virtual void ProcessEvent( SalUserEvent aEvent ) = 0;
+    virtual void TriggerUserEventProcessing() = 0;
+    virtual void TriggerAllUserEventsProcessed() {};
+
+public:
+    SalUserEventList();
+    virtual ~SalUserEventList();
+
+    inline const std::set< const SalFrame* >& getFrames() const;
+    inline SalFrame* anyFrame() const;
+    void insertFrame( const SalFrame* pFrame );
+    void eraseFrame( const SalFrame* pFrame );
+    inline bool isFrameAlive( const SalFrame* pFrame ) const;
+
+    void PostEvent( SalFrame* pFrame, void* pData, SalEvent nEvent );
+    bool RemoveEvent( SalFrame* pFrame, void* pData, SalEvent nEvent );
+    inline bool HasUserEvents() const;
+
+    bool DispatchUserEvents( bool bHandleAllCurrentEvents );
+};
+
+inline SalFrame* SalUserEventList::anyFrame() const
+{
+    if ( m_aFrames.empty() )
+        return nullptr;
+    return const_cast<SalFrame*>( *m_aFrames.begin() );
+}
+
+inline bool SalUserEventList::isFrameAlive( const SalFrame* pFrame ) const
+{
+    auto it = m_aFrames.find( pFrame );
+    return it != m_aFrames.end();
+}
+
+inline bool SalUserEventList::HasUserEvents() const
+{
+    osl::MutexGuard aGuard( m_aUserEventsMutex );
+    return !(m_aUserEvents.empty() && m_aProcessingUserEvents.empty());
+}
+
+inline void SalUserEventList::PostEvent( SalFrame* pFrame, void* pData, SalEvent nEvent )
+{
+    osl::MutexGuard aGuard( m_aUserEventsMutex );
+    m_aUserEvents.push_back( SalUserEvent( pFrame, pData, nEvent ) );
+    TriggerUserEventProcessing();
+}
+
+inline const std::set< const SalFrame* >& SalUserEventList::getFrames() const
+{
+    return m_aFrames;
+}
+
+#endif // INCLUDED_VCL_INC_SALUSEREVENTLIST_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/unx/gendisp.hxx b/vcl/inc/unx/gendisp.hxx
index 64564237a232..13f1247e20d3 100644
--- a/vcl/inc/unx/gendisp.hxx
+++ b/vcl/inc/unx/gendisp.hxx
@@ -27,45 +27,27 @@
 #include <vcl/dllapi.h>
 #include <list>
 #include <vector>
+#include <salusereventlist.hxx>
 
 class SalFrame;
-class VCL_DLLPUBLIC SalGenericDisplay
+class VCL_DLLPUBLIC SalGenericDisplay : public SalUserEventList
 {
-    mutable osl::Mutex m_aEventGuard;
-    struct SalUserEvent
-    {
-        SalFrame*  m_pFrame;
-        void*      m_pData;
-        SalEvent   m_nEvent;
-
-        SalUserEvent( SalFrame* pFrame, void* pData,
-                      SalEvent nEvent )
-                : m_pFrame( pFrame ),
-                  m_pData( pData ),
-                  m_nEvent( nEvent )
-        {}
-    };
-    std::list< SalUserEvent > m_aUserEvents;
 protected:
     SalFrame* m_pCapture;
-    std::list<SalFrame*> m_aFrames;
+
+    virtual void ProcessEvent( SalUserEvent aEvent ) override;
+
 public:
                  SalGenericDisplay();
-    virtual      ~SalGenericDisplay();
+    virtual      ~SalGenericDisplay() override;
 
-    osl::Mutex& getEventGuardMutex() { return m_aEventGuard; }
-
-    void registerFrame( SalFrame* pFrame );
-    virtual void deregisterFrame( SalFrame* pFrame );
+    void registerFrame( const SalFrame* pFrame );
+    virtual void deregisterFrame( const SalFrame* pFrame );
     void emitDisplayChanged();
 
-    // Event handling
-    virtual void PostUserEvent() = 0;
-
     void SendInternalEvent( SalFrame* pFrame, void* pData, SalEvent nEvent = SalEvent::UserEvent );
-    void CancelInternalEvent( SalFrame const * pFrame, void const * pData, SalEvent nEvent );
+    void CancelInternalEvent( SalFrame* pFrame, void* pData, SalEvent nEvent );
     bool DispatchInternalEvent();
-    bool HasUserEvents() const;
 
     bool     MouseCaptured( const SalFrame *pFrameData ) const
                         { return m_pCapture == pFrameData; }
diff --git a/vcl/inc/unx/gtk/gtkdata.hxx b/vcl/inc/unx/gtk/gtkdata.hxx
index 4f4d520fc141..1a510095f342 100644
--- a/vcl/inc/unx/gtk/gtkdata.hxx
+++ b/vcl/inc/unx/gtk/gtkdata.hxx
@@ -117,9 +117,9 @@ public:
     static void initNWF();
     static void deInitNWF();
 
-    static gboolean userEventFn( gpointer data );
+    void TriggerUserEventProcessing();
+    void TriggerAllUserEventsProcessed();
 
-    void PostUserEvent();
     bool Yield( bool bWait, bool bHandleAllCurrentEvents );
     inline GdkDisplay *GetGdkDisplay();
 
@@ -146,6 +146,7 @@ class GtkSalDisplay : public SalDisplay
 
     GdkCursor* getFromXBM( const unsigned char *pBitmap, const unsigned char *pMask,
                            int nWidth, int nHeight, int nXHot, int nYHot );
+
 public:
              GtkSalDisplay( GdkDisplay* pDisplay );
     virtual ~GtkSalDisplay() override;
@@ -157,7 +158,7 @@ public:
 
     GtkWidget* findGtkWidgetForNativeHandle(sal_uIntPtr hWindow) const;
 
-    virtual void deregisterFrame( SalFrame* pFrame ) override;
+    virtual void deregisterFrame( const SalFrame* pFrame ) override;
     GdkCursor *getCursor( PointerStyle ePointerStyle );
 #if GTK_CHECK_VERSION(3,0,0)
     virtual int CaptureMouse( SalFrame* pFrame );
@@ -180,7 +181,8 @@ public:
     void screenSizeChanged( GdkScreen const * );
     void monitorsChanged( GdkScreen const * );
 
-    virtual void PostUserEvent() override;
+    virtual void TriggerUserEventProcessing() override;
+    virtual void TriggerAllUserEventsProcessed() override;
 
 #if !GTK_CHECK_VERSION(3,0,0)
     virtual bool Dispatch( XEvent *pEvent ) override;
diff --git a/vcl/inc/unx/saldisp.hxx b/vcl/inc/unx/saldisp.hxx
index 0ec4e10e7d65..2388c3281f37 100644
--- a/vcl/inc/unx/saldisp.hxx
+++ b/vcl/inc/unx/saldisp.hxx
@@ -168,7 +168,7 @@ public:
 
     virtual bool    Yield( bool bWait, bool bHandleAllCurrentEvents );
     virtual void    Wakeup();
-    virtual void    PostUserEvent();
+    void            TriggerUserEventProcessing();
 
     virtual void    Insert( int fd, void* data,
                             YieldFunc   pending,
@@ -371,12 +371,10 @@ public:
             { return getDataForScreen( nXScreen ).m_aRoot; }
     unsigned int GetXScreenCount() const { return m_aScreens.size(); }
 
-    const std::list< SalFrame* >& getFrames() const { return m_aFrames; }
+    const std::set< const SalFrame* >& getFrames() const { return m_aFrames; }
     bool            IsNumLockFromXS() const { return bNumLockFromXS_; }
 
     std::list< SalObject* >& getSalObjects() { return m_aSalObjects; }
-
-    virtual void    PostUserEvent() override = 0;
 };
 
 inline  Display *SalColormap::GetXDisplay() const
@@ -390,7 +388,7 @@ public:
 
     virtual bool        Dispatch( XEvent *pEvent ) override;
     virtual void        Yield();
-    virtual void        PostUserEvent() override;
+    virtual void        TriggerUserEventProcessing() override;
 
     bool                IsEvent();
     void                SetupInput();
diff --git a/vcl/osx/salframe.cxx b/vcl/osx/salframe.cxx
index e54073cdf4f1..dcdfe6d9c936 100644
--- a/vcl/osx/salframe.cxx
+++ b/vcl/osx/salframe.cxx
@@ -87,8 +87,7 @@ AquaSalFrame::AquaSalFrame( SalFrame* pParent, SalFrameStyleFlags salFrameStyle
     initWindowAndView();
 
     SalData* pSalData = GetSalData();
-    pSalData->maFrames.push_front( this );
-    pSalData->maFrameCheck.insert( this );
+    pSalData->mpFirstInstance->insertFrame( this );
 }
 
 AquaSalFrame::~AquaSalFrame()
@@ -106,8 +105,7 @@ AquaSalFrame::~AquaSalFrame()
     [SalFrameView unsetMouseFrame: this];
 
     SalData* pSalData = GetSalData();
-    pSalData->maFrames.remove( this );
-    pSalData->maFrameCheck.erase( this );
+    pSalData->mpFirstInstance->eraseFrame( this );
     pSalData->maPresentationFrames.remove( this );
 
     SAL_WARN_IF( this == s_pCaptureFrame, "vcl", "capture frame destroyed" );
@@ -296,7 +294,7 @@ void AquaSalFrame::ReleaseGraphics( SalGraphics *pGraphics )
 
 bool AquaSalFrame::PostEvent(ImplSVEvent* pData)
 {
-    GetSalData()->mpFirstInstance->PostUserEvent( this, SalEvent::UserEvent, pData );
+    GetSalData()->mpFirstInstance->PostEvent( this, pData, SalEvent::UserEvent );
     return TRUE;
 }
 
diff --git a/vcl/osx/salinst.cxx b/vcl/osx/salinst.cxx
index f55e9b4aa297..a57879802f52 100644
--- a/vcl/osx/salinst.cxx
+++ b/vcl/osx/salinst.cxx
@@ -79,7 +79,8 @@ static bool bLeftMain = false;
 class AquaDelayedSettingsChanged : public Idle
 {
     bool            mbInvalidate;
-    public:
+
+public:
     AquaDelayedSettingsChanged( bool bInvalidate ) :
         mbInvalidate( bInvalidate )
     {
@@ -87,20 +88,20 @@ class AquaDelayedSettingsChanged : public Idle
 
     virtual void Invoke() override
     {
-        SalData* pSalData = GetSalData();
-        if( ! pSalData->maFrames.empty() )
-            pSalData->maFrames.front()->CallCallback( SalEvent::SettingsChanged, nullptr );
+        AquaSalInstance *pInst = GetSalData()->mpFirstInstance;
+        SalFrame *pAnyFrame = pInst->anyFrame();
+        if( pAnyFrame )
+            pAnyFrame->CallCallback( SalEvent::SettingsChanged, nullptr );
 
         if( mbInvalidate )
         {
-            for( std::list< AquaSalFrame* >::iterator it = pSalData->maFrames.begin();
-                it != pSalData->maFrames.end(); ++it )
+            for( auto pSalFrame : pInst->getFrames() )
             {
-                if( (*it)->mbShown )
-                    (*it)->SendPaintEvent();
+                AquaSalFrame* pFrame = static_cast<AquaSalFrame*>( const_cast<SalFrame*>( pSalFrame ) );
+                if( pFrame->mbShown )
+                    pFrame->SendPaintEvent();
             }
         }
-        Stop();
         delete this;
     }
 };
@@ -390,17 +391,19 @@ AquaSalInstance::~AquaSalInstance()
     delete mpSalYieldMutex;
 }
 
-void AquaSalInstance::PostUserEvent( AquaSalFrame* pFrame, SalEvent nType, void* pData )
+void AquaSalInstance::TriggerUserEventProcessing()
 {
-    {
-        osl::MutexGuard g( maUserEventListMutex );
-        maUserEvents.push_back( SalUserEvent( pFrame, pData, nType ) );
-    }
     dispatch_async(dispatch_get_main_queue(),^{
         ImplNSAppPostEvent( AquaSalInstance::YieldWakeupEvent, NO );
     });
 }
 
+void AquaSalInstance::ProcessEvent( SalUserEvent aEvent )
+{
+    aEvent.m_pFrame->CallCallback( aEvent.m_nEvent, aEvent.m_pData );
+    maWaitingYieldCond.set();
+}
+
 comphelper::SolarMutex* AquaSalInstance::GetYieldMutex()
 {
     return mpSalYieldMutex;
@@ -453,15 +456,17 @@ void AquaSalInstance::handleAppDefinedEvent( NSEvent* pEvent )
     case AppleRemoteControlEvent: // Defined in <apple_remote/RemoteMainController.h>
     {
         MediaCommand nCommand;
-        SalData* pSalData = GetSalData();
+        AquaSalInstance *pInst = GetSalData()->mpFirstInstance;
         bool bIsFullScreenMode = false;
 
-        std::list<AquaSalFrame*>::iterator it = pSalData->maFrames.begin();
-        while( it != pSalData->maFrames.end() )
+        for( auto pSalFrame : pInst->getFrames() )
         {
-            if ( (*it) && (*it)->mbFullScreen )
+            const AquaSalFrame* pFrame = static_cast<const AquaSalFrame*>( pSalFrame );
+            if ( pFrame->mbFullScreen )
+            {
                 bIsFullScreenMode = true;
-            ++it;
+                break;
+            }
         }
 
         switch ([pEvent data1])
@@ -497,9 +502,8 @@ void AquaSalInstance::handleAppDefinedEvent( NSEvent* pEvent )
             default:
                 break;
         }
-        AquaSalFrame* pFrame = pSalData->maFrames.front();
+        AquaSalFrame* pFrame = static_cast<AquaSalFrame*>( pInst->anyFrame() );
         vcl::Window* pWindow = pFrame ? pFrame->GetWindow() : nullptr;
-
         if( pWindow )
         {
             const Point aPoint;
@@ -532,6 +536,7 @@ bool AquaSalInstance::RunInMainYield( bool bHandleAllCurrentEvents )
     return false;
 
 }
+
 static bool isWakeupEvent( NSEvent *pEvent )
 {
 SAL_WNODEPRECATED_DECLARATIONS_PUSH
@@ -542,8 +547,6 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
 
 bool AquaSalInstance::DoYield(bool bWait, bool bHandleAllCurrentEvents)
 {
-    bool bHadEvent = false;
-
     // ensure that the per thread autorelease pool is top level and
     // will therefore not be destroyed by cocoa implicitly
     SalData::ensureThreadAutoreleasePool();
@@ -552,36 +555,10 @@ bool AquaSalInstance::DoYield(bool bWait, bool bHandleAllCurrentEvents)
     // an own pool for each yield level
     ReleasePoolHolder aReleasePool;
 
-    // Release all locks so that we don't deadlock when we pull pending
-    // events from the event queue
-    bool bDispatchUser = true;
-    while( bDispatchUser )
-    {
-        // get one user event
-        SalUserEvent aEvent( nullptr, nullptr, SalEvent::NONE );
-        {
-            osl::MutexGuard g( maUserEventListMutex );
-            if( ! maUserEvents.empty() )
-            {
-                aEvent = maUserEvents.front();
-                maUserEvents.pop_front();
-                bHadEvent = true;
-            }
-            else
-                bDispatchUser = false;
-        }
-
-        // dispatch it
-        if( aEvent.mpFrame && AquaSalFrame::isAlive( aEvent.mpFrame ) )
-        {
-            aEvent.mpFrame->CallCallback( aEvent.mnType, aEvent.mpData );
-            maWaitingYieldCond.set();
-        }
-
-        // return if only one event is asked for
-        if( !bHandleAllCurrentEvents && bDispatchUser )
-            return true;
-    }
+    // first, process current user events
+    bool bHadEvent = DispatchUserEvents( bHandleAllCurrentEvents );
+    if ( !bHandleAllCurrentEvents && bHadEvent )
+        return true;
 
     // handle cocoa event queue
     // cocoa events may be only handled in the thread the NSApp was created
@@ -639,13 +616,13 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
         }
 
         // collect update rectangles
-        const std::list< AquaSalFrame* > rFrames( GetSalData()->maFrames );
-        for( std::list< AquaSalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+        for( auto pSalFrame : GetSalData()->mpFirstInstance->getFrames() )
         {
-            if( (*it)->mbShown && ! (*it)->maInvalidRect.IsEmpty() )
+            AquaSalFrame* pFrame = static_cast<AquaSalFrame*>( const_cast<SalFrame*>( pSalFrame ) );
+            if( pFrame->mbShown && ! pFrame->maInvalidRect.IsEmpty() )
             {
-                (*it)->Flush( (*it)->maInvalidRect );
-                (*it)->maInvalidRect.SetEmpty();
+                pFrame->Flush( pFrame->maInvalidRect );
+                pFrame->maInvalidRect.SetEmpty();
             }
         }
 
diff --git a/vcl/osx/vclnsapp.mm b/vcl/osx/vclnsapp.mm
index 651fa2a014cc..f06c9fd0b2ab 100644
--- a/vcl/osx/vclnsapp.mm
+++ b/vcl/osx/vclnsapp.mm
@@ -248,77 +248,70 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
 -(void)cycleFrameForward: (AquaSalFrame*)pCurFrame
 {
     // find current frame in list
-    std::list< AquaSalFrame* >& rFrames( GetSalData()->maFrames );
-    std::list< AquaSalFrame* >::iterator it = rFrames.begin();
-    for( ; it != rFrames.end() && *it != pCurFrame; ++it )
-        ;
+    auto &rFrames( GetSalData()->mpFirstInstance->getFrames() );
+    auto it = rFrames.find( pCurFrame );
     if( it != rFrames.end() )
     {
+        ++it;
         // now find the next frame (or end)
-        do
+        for( ; it != rFrames.end(); ++it )
         {
-            ++it;
-            if( it != rFrames.end() )
+            auto pFrame = static_cast<const AquaSalFrame*>( *it );
+            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
             {
-                if( (*it)->mpDockMenuEntry != nullptr &&
-                    (*it)->mbShown )
-                {
-                    [(*it)->getNSWindow() makeKeyAndOrderFront: NSApp];
-                    return;
-                }
+                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
+                return;
             }
-        } while( it != rFrames.end() );
+        }
         // cycle around, find the next up to pCurFrame
-        it = rFrames.begin();
-        while( *it != pCurFrame )
+        for( it = rFrames.begin(); *it != pCurFrame; ++it )
         {
-            if( (*it)->mpDockMenuEntry != nullptr &&
-                (*it)->mbShown )
+            auto pFrame = static_cast<const AquaSalFrame*>( *it );
+            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
             {
-                [(*it)->getNSWindow() makeKeyAndOrderFront: NSApp];
+                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
                 return;
             }
-            ++it;
         }
     }
 }
 
+template< class Iterator >
+std::reverse_iterator<Iterator> make_reverse_iterator( Iterator i )
+{
+    return std::reverse_iterator<Iterator>(i);
+}
+
 -(void)cycleFrameBackward: (AquaSalFrame*)pCurFrame
 {
     // do the same as cycleFrameForward only with a reverse iterator
 
     // find current frame in list
-    std::list< AquaSalFrame* >& rFrames( GetSalData()->maFrames );
-    std::list< AquaSalFrame* >::reverse_iterator it = rFrames.rbegin();
-    for( ; it != rFrames.rend() && *it != pCurFrame; ++it )
-        ;
-    if( it != rFrames.rend() )
+    auto &rFrames( GetSalData()->mpFirstInstance->getFrames() );
+    auto search_it = rFrames.find( pCurFrame );
+    if( search_it != rFrames.end() )
     {
+        auto it = ::make_reverse_iterator( search_it );
+        ++it;
         // now find the next frame (or end)
-        do
+        for( ; it != rFrames.rend(); ++it )
         {
-            ++it;
-            if( it != rFrames.rend() )
+            auto pFrame = static_cast<const AquaSalFrame*>( *it );
+            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
             {
-                if( (*it)->mpDockMenuEntry != nullptr &&
-                    (*it)->mbShown )
-                {
-                    [(*it)->getNSWindow() makeKeyAndOrderFront: NSApp];
-                    return;
-                }
+                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
+                return;
             }
-        } while( it != rFrames.rend() );
+        }
         // cycle around, find the next up to pCurFrame
-        it = rFrames.rbegin();
-        while( *it != pCurFrame )
+        for( it = rFrames.rbegin(); *it != pCurFrame; ++it )
         {
-            if( (*it)->mpDockMenuEntry != nullptr &&
-                (*it)->mbShown )
+            auto pFrame = static_cast<const AquaSalFrame*>( *it );
+            if( pFrame->mpDockMenuEntry != nullptr && pFrame->mbShown )
             {
-                [(*it)->getNSWindow() makeKeyAndOrderFront: NSApp];
+                [pFrame->getNSWindow() makeKeyAndOrderFront: NSApp];
                 return;
             }
-            ++it;
         }
     }
 }
@@ -413,12 +406,13 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
     {
         SolarMutexGuard aGuard;
 
-        SalData* pSalData = GetSalData();
-        if( ! pSalData->maFrames.empty() )
+        AquaSalInstance *pInst = GetSalData()->mpFirstInstance;
+        SalFrame *pAnyFrame = pInst->anyFrame();
+        if( pAnyFrame )
         {
             // the following QueryExit will likely present a message box, activate application
             [NSApp activateIgnoringOtherApps: YES];
-            aReply = pSalData->maFrames.front()->CallCallback( SalEvent::Shutdown, nullptr ) ? NSTerminateCancel : NSTerminateNow;
+            aReply = pAnyFrame->CallCallback( SalEvent::Shutdown, nullptr ) ? NSTerminateCancel : NSTerminateNow;
         }
 
         if( aReply == NSTerminateNow )
@@ -439,9 +433,10 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
     (void)pNotification;
     SolarMutexGuard aGuard;
 
-    const SalData* pSalData = GetSalData();
-    if( !pSalData->maFrames.empty() )
-        pSalData->maFrames.front()->CallCallback( SalEvent::SettingsChanged, nullptr );
+    AquaSalInstance *pInst = GetSalData()->mpFirstInstance;
+    SalFrame *pAnyFrame = pInst->anyFrame();
+    if(  pAnyFrame )
+        pAnyFrame->CallCallback( SalEvent::SettingsChanged, nullptr );
 }
 
 -(void)screenParametersChanged: (NSNotification*) pNotification
@@ -449,11 +444,10 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
     (void)pNotification;
     SolarMutexGuard aGuard;
 
-    SalData* pSalData = GetSalData();
-    std::list< AquaSalFrame* >::iterator it;
-    for( it = pSalData->maFrames.begin(); it != pSalData->maFrames.end(); ++it )
+    for( auto pSalFrame : GetSalData()->mpFirstInstance->getFrames() )
     {
-        (*it)->screenParametersChanged();
+        AquaSalFrame *pFrame = static_cast<AquaSalFrame*>( const_cast<SalFrame*>( pSalFrame ) );
+        pFrame->screenParametersChanged();
     }
 }
 
diff --git a/vcl/quartz/salvd.cxx b/vcl/quartz/salvd.cxx
index 3110398b8784..fe48f0b80326 100644
--- a/vcl/quartz/salvd.cxx
+++ b/vcl/quartz/salvd.cxx
@@ -255,19 +255,10 @@ bool AquaSalVirtualDevice::SetSize( long nDX, long nDY )
         AquaSalFrame* pSalFrame = mpGraphics->getGraphicsFrame();
         if( !pSalFrame || !AquaSalFrame::isAlive( pSalFrame ))
         {
-            if( !GetSalData()->maFrames.empty() )
-            {
-                // get the first matching frame
-                pSalFrame = *GetSalData()->maFrames.begin();
-            }
-            else
-            {
-                // ensure we don't reuse a dead AquaSalFrame on the very
-                // unlikely case of no other frame to use
-                pSalFrame = nullptr;
-            }
-            // update the frame reference
-            mpGraphics->setGraphicsFrame( pSalFrame );
+            pSalFrame = static_cast<AquaSalFrame*>( GetSalData()->mpFirstInstance->anyFrame() );
+            if ( pSalFrame )
+                // update the frame reference
+                mpGraphics->setGraphicsFrame( pSalFrame );
         }
         if( pSalFrame )
         {
diff --git a/vcl/source/app/salusereventlist.cxx b/vcl/source/app/salusereventlist.cxx
new file mode 100644
index 000000000000..22ae1b73d728
--- /dev/null
+++ b/vcl/source/app/salusereventlist.cxx
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <salusereventlist.hxx>
+#include <salwtype.hxx>
+
+#include <algorithm>
+
+SalUserEventList::SalUserEventList()
+{
+}
+
+SalUserEventList::~SalUserEventList()
+{
+}
+
+void SalUserEventList::insertFrame( const SalFrame* pFrame )
+{
+    auto aPair = m_aFrames.insert( pFrame );
+    assert( aPair.second ); (void) aPair;
+}
+
+void SalUserEventList::eraseFrame( const SalFrame* pFrame )
+{
+    auto it = m_aFrames.find( pFrame );
+    assert( it != m_aFrames.end() );
+    if ( it != m_aFrames.end() )
+        m_aFrames.erase( it );
+}
+
+bool SalUserEventList::DispatchUserEvents( bool bHandleAllCurrentEvents )
+{
+    bool bWasEvent = false;
+
+    {
+        osl::MutexGuard aGuard( m_aUserEventsMutex );
+        if( ! m_aUserEvents.empty() )
+        {
+            if( bHandleAllCurrentEvents )
+                m_aProcessingUserEvents.swap( m_aUserEvents );
+            else
+            {
+                m_aProcessingUserEvents.push_back( m_aUserEvents.front() );
+                m_aUserEvents.pop_front();
+            }
+            bWasEvent = true;
+        }
+    }
+
+    if( bWasEvent )
+    {
+        SalUserEvent aEvent( nullptr, nullptr, SalEvent::NONE );
+        do {
+            {
+                osl::MutexGuard aGuard( m_aUserEventsMutex );
+                if ( m_aProcessingUserEvents.empty() )
+                    break;
+                aEvent = m_aProcessingUserEvents.front();
+                m_aProcessingUserEvents.pop_front();
+            }
+
+            if ( isFrameAlive( aEvent.m_pFrame ) )
+                ProcessEvent( aEvent );
+        }
+        while( true );
+    }
+
+    osl::MutexGuard aGuard( m_aUserEventsMutex );
+    if ( !HasUserEvents() )
+        TriggerAllUserEventsProcessed();
+
+    return bWasEvent;
+}
+
+bool SalUserEventList::RemoveEvent( SalFrame* pFrame, void* pData, SalEvent nEvent )
+{
+    SalUserEvent aEvent( pFrame, pData, nEvent );
+    bool bResult = false;
+
+    osl::MutexGuard aGuard( m_aUserEventsMutex );
+    auto it = std::find( m_aUserEvents.begin(), m_aUserEvents.end(), aEvent );
+    if ( it != m_aUserEvents.end() )
+    {
+        m_aUserEvents.erase( it );
+        bResult = true;
+    }
+    else
+    {
+        it = std::find( m_aProcessingUserEvents.begin(), m_aProcessingUserEvents.end(), aEvent );
+        if ( it != m_aProcessingUserEvents.end() )
+        {
+            m_aProcessingUserEvents.erase( it );
+            bResult = true;
+        }
+    }
+
+    if ( bResult && !HasUserEvents() )
+        TriggerAllUserEventsProcessed();
+
+    return bResult;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/generic/app/gendisp.cxx b/vcl/unx/generic/app/gendisp.cxx
index edaf0e6ffb95..fbb27657e76d 100644
--- a/vcl/unx/generic/app/gendisp.cxx
+++ b/vcl/unx/generic/app/gendisp.cxx
@@ -22,7 +22,6 @@
 #include <unx/geninst.h>
 
 SalGenericDisplay::SalGenericDisplay()
- : m_aEventGuard()
 {
     m_pCapture = nullptr;
 }
@@ -31,96 +30,41 @@ SalGenericDisplay::~SalGenericDisplay()
 {
 }
 
-void SalGenericDisplay::registerFrame( SalFrame* pFrame )
+void SalGenericDisplay::registerFrame( const SalFrame* pFrame )
 {
-    m_aFrames.push_front( pFrame );
+    insertFrame( pFrame );
 }
 
-void SalGenericDisplay::deregisterFrame( SalFrame* pFrame )
+void SalGenericDisplay::deregisterFrame( const SalFrame* pFrame )
 {
-    {
-        osl::MutexGuard g( m_aEventGuard );
-        std::list< SalUserEvent >::iterator it = m_aUserEvents.begin();
-        while ( it != m_aUserEvents.end() )
-        {
-            if( it->m_pFrame == pFrame )
-            {
-                if (it->m_nEvent == SalEvent::UserEvent) {
-                    delete static_cast<ImplSVEvent *>(it->m_pData);
-                }
-                it = m_aUserEvents.erase( it );
-            }
-            else
-                ++it;
-        }
-    }
-
-    m_aFrames.remove( pFrame );
+    eraseFrame( pFrame );
 }
 
 void SalGenericDisplay::emitDisplayChanged()
 {
-    if( !m_aFrames.empty() )
-        m_aFrames.front()->CallCallback( SalEvent::DisplayChanged, nullptr );
+    SalFrame *pAnyFrame = anyFrame();
+    if( pAnyFrame )
+        pAnyFrame->CallCallback( SalEvent::DisplayChanged, nullptr );
 }
 
 bool SalGenericDisplay::DispatchInternalEvent()
 {
-    void* pData = nullptr;
-    SalFrame* pFrame = nullptr;
-    SalEvent nEvent = SalEvent::NONE;
-
-    {
-        osl::MutexGuard g( m_aEventGuard );
-        if( !m_aUserEvents.empty() )
-        {
-            pFrame  = m_aUserEvents.front().m_pFrame;
-            pData   = m_aUserEvents.front().m_pData;
-            nEvent  = m_aUserEvents.front().m_nEvent;
-
-            m_aUserEvents.pop_front();
-        }
-    }
-
-    if( pFrame )
-        pFrame->CallCallback( nEvent, pData );
-
-    return pFrame != nullptr;
+    return DispatchUserEvents( false );
 }
 
 void SalGenericDisplay::SendInternalEvent( SalFrame* pFrame, void* pData, SalEvent nEvent )
 {
-    osl::MutexGuard g( m_aEventGuard );
-
-    m_aUserEvents.emplace_back( pFrame, pData, nEvent );
-
-    PostUserEvent(); // wakeup the concrete mainloop
+    PostEvent( pFrame, pData, nEvent );
 }
 
-void SalGenericDisplay::CancelInternalEvent( SalFrame const * pFrame, void const * pData, SalEvent nEvent )
+void SalGenericDisplay::CancelInternalEvent( SalFrame* pFrame, void* pData, SalEvent nEvent )
 {
-    osl::MutexGuard g( m_aEventGuard );
-    if( ! m_aUserEvents.empty() )
-    {
-        std::list< SalUserEvent >::iterator it = m_aUserEvents.begin();
-        while (it != m_aUserEvents.end())
-        {
-            if( it->m_pFrame    == pFrame   &&
-                it->m_pData     == pData    &&
-                it->m_nEvent    == nEvent )
-            {
-                it = m_aUserEvents.erase( it );
-            }
-            else
-                ++it;
-        }
-    }
+    RemoveEvent( pFrame, pData, nEvent );
 }
 
-bool SalGenericDisplay::HasUserEvents() const
+void SalGenericDisplay::ProcessEvent( SalUserEvent aEvent )
 {
-    osl::MutexGuard g( m_aEventGuard );
-    return !m_aUserEvents.empty();
+    aEvent.m_pFrame->CallCallback( aEvent.m_nEvent, aEvent.m_pData );
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/generic/app/i18n_status.cxx b/vcl/unx/generic/app/i18n_status.cxx
index f2be4d7b47a2..81ce3a5450b2 100644
--- a/vcl/unx/generic/app/i18n_status.cxx
+++ b/vcl/unx/generic/app/i18n_status.cxx
@@ -170,12 +170,9 @@ bool XIMStatusWindow::checkLastParent() const
 {
     if( m_pLastParent )
     {
-        const std::list< SalFrame* >& rFrames = vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames();
-        for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
-        {
-            if( *it == m_pLastParent )
-                return true;
-        }
+        auto rFrameList = vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames();
+        auto it = rFrameList.find( m_pLastParent );
+        return it != rFrameList.end();
     }
     return false;
 }
diff --git a/vcl/unx/generic/app/saldata.cxx b/vcl/unx/generic/app/saldata.cxx
index 930356b76992..4ad2c02db54f 100644
--- a/vcl/unx/generic/app/saldata.cxx
+++ b/vcl/unx/generic/app/saldata.cxx
@@ -786,7 +786,7 @@ void SalXLib::Wakeup()
     OSL_VERIFY(write (m_pTimeoutFDS[1], "", 1) == 1);
 }
 
-void SalXLib::PostUserEvent()
+void SalXLib::TriggerUserEventProcessing()
 {
     Wakeup();
 }
diff --git a/vcl/unx/generic/app/saldisp.cxx b/vcl/unx/generic/app/saldisp.cxx
index cd96818420ad..51c73c4915bc 100644
--- a/vcl/unx/generic/app/saldisp.cxx
+++ b/vcl/unx/generic/app/saldisp.cxx
@@ -431,10 +431,10 @@ SalX11Display::~SalX11Display()
     }
 }
 
-void SalX11Display::PostUserEvent()
+void SalX11Display::TriggerUserEventProcessing()
 {
     if( pXLib_ )
-        pXLib_->PostUserEvent();
+        pXLib_->TriggerUserEventProcessing();
 }
 
 SalDisplay::ScreenData *
@@ -1935,17 +1935,16 @@ bool SalX11Display::Dispatch( XEvent *pEvent )
     {
         ::Window aWindow = pEvent->xkey.window;
 
-        std::list< SalFrame* >::const_iterator it;
-        for( it = m_aFrames.begin(); it != m_aFrames.end(); ++it )
+        for (auto pSalFrame : m_aFrames )
         {
-            const X11SalFrame* pFrame = static_cast< const X11SalFrame* >(*it);
+            const X11SalFrame* pFrame = static_cast< const X11SalFrame* >( pSalFrame );
             if( pFrame->GetWindow() == aWindow || pFrame->GetShellWindow() == aWindow )
             {
                 aWindow = pFrame->GetWindow();
                 break;
             }
         }
-        if( it != m_aFrames.end() )
+        if( aWindow != pEvent->xkey.window )
         {
             if ( pInputMethod && pInputMethod->FilterEvent( pEvent , aWindow ) )
                 return false;
@@ -1975,9 +1974,8 @@ bool SalX11Display::Dispatch( XEvent *pEvent )
                 {
                     if( pEvent->xproperty.window == rScreen.m_aRefWindow )
                     {
-                        std::list< SalFrame* >::const_iterator it;
-                        for( it = m_aFrames.begin(); it != m_aFrames.end(); ++it )
-                            (*it)->CallCallback( SalEvent::SettingsChanged, nullptr );
+                        for (auto pSalFrame : m_aFrames )
+                             pSalFrame->CallCallback( SalEvent::SettingsChanged, nullptr );
                         return false;
                     }
                 }
@@ -2009,10 +2007,10 @@ bool SalX11Display::Dispatch( XEvent *pEvent )
             break;
     }
 
-    std::list< SalFrame* >::iterator it;
-    for( it = m_aFrames.begin(); it != m_aFrames.end(); ++it )
+    for (auto pSalFrame : m_aFrames )
     {
-        X11SalFrame* pFrame = static_cast< X11SalFrame* >(*it);
+        X11SalFrame* pFrame = static_cast<X11SalFrame*>( const_cast<SalFrame*>( pSalFrame ) );
+
         ::Window aDispatchWindow = pEvent->xany.window;
         if( pFrame->GetWindow() == aDispatchWindow
             || pFrame->GetShellWindow() == aDispatchWindow
diff --git a/vcl/unx/generic/app/salinst.cxx b/vcl/unx/generic/app/salinst.cxx
index e38164ee247b..d722f28e686c 100644
--- a/vcl/unx/generic/app/salinst.cxx
+++ b/vcl/unx/generic/app/salinst.cxx
@@ -225,10 +225,8 @@ void X11SalInstance::AddToRecentDocumentList(const OUString& rFileUrl, const OUS
 void X11SalInstance::PostPrintersChanged()
 {
     SalDisplay* pDisp = vcl_sal::getSalDisplay(GetGenericUnixSalData());
-    const std::list< SalFrame* >& rList = pDisp->getFrames();
-    for( std::list< SalFrame* >::const_iterator it = rList.begin();
-         it != rList.end(); ++it )
-        pDisp->SendInternalEvent( *it, nullptr, SalEvent::PrinterChanged );
+    for (auto pSalFrame : pDisp->getFrames() )
+        pDisp->PostEvent( const_cast<SalFrame*>( pSalFrame ), nullptr, SalEvent::PrinterChanged );
 }
 
 GenPspGraphics *X11SalInstance::CreatePrintGraphics()
diff --git a/vcl/unx/generic/app/sm.cxx b/vcl/unx/generic/app/sm.cxx
index e6da11244074..4beb1d58b2c3 100644
--- a/vcl/unx/generic/app/sm.cxx
+++ b/vcl/unx/generic/app/sm.cxx
@@ -293,10 +293,9 @@ IMPL_STATIC_LINK( SessionManagerClient, SaveYourselfHdl, void*, pStateVal, void
           task of the quick-starter)
         */
         *pSmRestartHint = SmRestartNever;
-        const std::list< SalFrame* >& rFrames = vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames();
-        for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+        for (auto pSalFrame : vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames() )
         {
-            vcl::Window *pWindow = (*it)->GetWindow();
+            vcl::Window *pWindow = pSalFrame->GetWindow();
             if (pWindow && pWindow->IsVisible())
             {
                 *pSmRestartHint = SmRestartIfRunning;
@@ -394,11 +393,10 @@ IMPL_STATIC_LINK_NOARG( SessionManagerClient, ShutDownHdl, void*, void )
         m_pSession->CallCallback( &aEvent );
     }
 
-    const std::list< SalFrame* >& rFrames = vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames();
-
-    SAL_INFO("vcl.sm.debug", "  rFrames.empty() = " << (rFrames.empty() ? "true" : "false"));
-    if( !rFrames.empty() )
-        rFrames.front()->CallCallback( SalEvent::Shutdown, nullptr );
+    SalFrame *pAnyFrame = vcl_sal::getSalDisplay(GetGenericUnixSalData())->anyFrame();
+    SAL_INFO("vcl.sm.debug", "  rFrames.empty() = " << (pAnyFrame ? "true" : "false"));
+    if( pAnyFrame )
+        pAnyFrame->CallCallback( SalEvent::Shutdown, nullptr );
 }
 
 void SessionManagerClient::DieProc(
diff --git a/vcl/unx/generic/gdi/salgdi2.cxx b/vcl/unx/generic/gdi/salgdi2.cxx
index 6c4aba94f9d4..4c3175bcc09f 100644
--- a/vcl/unx/generic/gdi/salgdi2.cxx
+++ b/vcl/unx/generic/gdi/salgdi2.cxx
@@ -127,12 +127,11 @@ void X11SalGraphics::YieldGraphicsExpose()
     ::Window aWindow = GetDrawable();
     if( ! pFrame )
     {
-        const std::list< SalFrame* >& rFrames = vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames();
-        for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end() && ! pFrame; ++it )
+        for (auto pSalFrame : vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames() )
         {
-            const SystemEnvData* pEnvData = (*it)->GetSystemData();
+            const SystemEnvData* pEnvData = pSalFrame->GetSystemData();
             if( Drawable(pEnvData->aWindow) == aWindow )
-                pFrame = *it;
+                pFrame = const_cast<SalFrame*>( pSalFrame );
         }
         if( ! pFrame )
             return;
diff --git a/vcl/unx/generic/window/salframe.cxx b/vcl/unx/generic/window/salframe.cxx
index b89a736581d2..e2eb2ee2d237 100644
--- a/vcl/unx/generic/window/salframe.cxx
+++ b/vcl/unx/generic/window/salframe.cxx
@@ -492,15 +492,14 @@ void X11SalFrame::Init( SalFrameStyleFlags nSalFrameStyle, SalX11Screen nXScreen
 
         // check if this is really one of our own frames
         // do not change the input mask in that case
-        const std::list< SalFrame* >& rFrames = GetDisplay()->getFrames();
-        std::list< SalFrame* >::const_iterator it = rFrames.begin();
-        while( it != rFrames.end() && mhForeignParent != static_cast<const X11SalFrame*>(*it)->GetWindow() )
-            ++it;
-
-        if( it == rFrames.end() )
+        for (auto pSalFrame : GetDisplay()->getFrames() )
         {
-            XSelectInput( GetDisplay()->GetDisplay(), mhForeignParent, StructureNotifyMask | FocusChangeMask );
-            XSelectInput( GetDisplay()->GetDisplay(), mhShellWindow, StructureNotifyMask | FocusChangeMask );
+            if ( static_cast<const X11SalFrame*>( pSalFrame )->GetWindow() == mhForeignParent )
+            {
+                XSelectInput( GetDisplay()->GetDisplay(), mhForeignParent, StructureNotifyMask | FocusChangeMask );
+                XSelectInput( GetDisplay()->GetDisplay(), mhShellWindow, StructureNotifyMask | FocusChangeMask );
+                break;
+            }
         }
     }
     else
@@ -521,11 +520,9 @@ void X11SalFrame::Init( SalFrameStyleFlags nSalFrameStyle, SalX11Screen nXScreen
             {
                 // find the last document window (if any)
                 const X11SalFrame* pFrame = nullptr;
-                const std::list< SalFrame* >& rFrames = GetDisplay()->getFrames();
-                std::list< SalFrame* >::const_iterator it = rFrames.begin();
-                while( it != rFrames.end() )
+                for (auto pSalFrame : GetDisplay()->getFrames() )
                 {
-                    pFrame = static_cast< const X11SalFrame* >(*it);
+                    pFrame = static_cast< const X11SalFrame* >( pSalFrame );
                     if( ! ( pFrame->mpParent
                             || pFrame->mbFullScreen
                             || ! ( pFrame->nStyle_ & SalFrameStyleFlags::SIZEABLE )
@@ -534,10 +531,9 @@ void X11SalFrame::Init( SalFrameStyleFlags nSalFrameStyle, SalX11Screen nXScreen
                             )
                         )
                         break;
-                    ++it;
                 }
 
-                if( it != rFrames.end() )
+                if( pFrame )
                 {
                     // set a document position and size
                     // the first frame gets positioned by the window manager
@@ -954,13 +950,12 @@ X11SalFrame::~X11SalFrame()
      *  check if there is only the status frame left
      *  if so, free it
      */
-    if( ! GetDisplay()->getFrames().empty() && vcl::I18NStatus::exists() )
+    auto &rFrames = GetDisplay()->getFrames();
+    if( ! rFrames.empty() && vcl::I18NStatus::exists() )
     {
         SalFrame* pStatusFrame = vcl::I18NStatus::get().getStatusFrame();
-        std::list< SalFrame* >::const_iterator sit = GetDisplay()->getFrames().begin();
-        if( pStatusFrame
-            && *sit == pStatusFrame
-            && ++sit == GetDisplay()->getFrames().end() )
+        auto sit = rFrames.begin();
+        if( pStatusFrame && *sit == pStatusFrame && ++sit == rFrames.end() )
             vcl::I18NStatus::free();
     }
 }
@@ -1204,10 +1199,9 @@ void X11SalFrame::Show( bool bVisible, bool bNoActivate )
         if( ! (nStyle_ & SalFrameStyleFlags::INTRO) )
         {
             // hide all INTRO frames
-            const std::list< SalFrame* >& rFrames = GetDisplay()->getFrames();
-            for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+            for (auto pSalFrame : GetDisplay()->getFrames() )
             {
-                const X11SalFrame* pFrame = static_cast< const X11SalFrame* >(*it);
+                const X11SalFrame* pFrame = static_cast< const X11SalFrame* >( pSalFrame );
                 // look for intro bit map; if present, hide it
                 if( pFrame->nStyle_ & SalFrameStyleFlags::INTRO )
                 {
@@ -2698,10 +2692,9 @@ bool X11SalFrame::HandleMouseEvent( XEvent *pEvent )
             // see if the user clicks outside all of the floats
             // if yes release the grab
             bool bInside = false;
-            const std::list< SalFrame* >& rFrames = GetDisplay()->getFrames();
-            for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+            for (auto pSalFrame : GetDisplay()->getFrames() )
             {
-                const X11SalFrame* pFrame = static_cast< const X11SalFrame* >(*it);
+                const X11SalFrame* pFrame = static_cast< const X11SalFrame* >( pSalFrame );
                 if( pFrame->IsFloatGrabWindow()                                     &&
                     pFrame->bMapped_                                                &&
                     pEvent->xbutton.x_root >= pFrame->maGeometry.nX                             &&
@@ -2738,9 +2731,9 @@ bool X11SalFrame::HandleMouseEvent( XEvent *pEvent )
                     && aChild // pointer may not be in any child
                     )
                 {
-                    for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+                    for (auto pSalFrame : GetDisplay()->getFrames() )
                     {
-                        const X11SalFrame* pFrame = static_cast< const X11SalFrame* >(*it);
+                        const X11SalFrame* pFrame = static_cast< const X11SalFrame* >( pSalFrame );
                         if( ! pFrame->IsFloatGrabWindow()
                             && ( pFrame->GetWindow() == aChild ||
                                  pFrame->GetShellWindow() == aChild ||
diff --git a/vcl/unx/gtk/gtkdata.cxx b/vcl/unx/gtk/gtkdata.cxx
index eaa34d9461e5..bba4355ced6a 100644
--- a/vcl/unx/gtk/gtkdata.cxx
+++ b/vcl/unx/gtk/gtkdata.cxx
@@ -133,19 +133,17 @@ GdkFilterReturn GtkSalDisplay::filterGdkEvent( GdkXEvent* sys_event )
         // so we need to listen for corresponding property notifications here
         // these should be rare enough so that we can assume that the settings
         // actually change when a corresponding PropertyNotify occurs
-        if( pEvent->type == PropertyNotify &&
-            pEvent->xproperty.atom == getWMAdaptor()->getAtom( WMAdaptor::XSETTINGS ) &&
-            ! m_aFrames.empty()
-           )
+        SalFrame *pAnyFrame = anyFrame();
+        if( pAnyFrame && pEvent->type == PropertyNotify &&
+            pEvent->xproperty.atom == getWMAdaptor()->getAtom( WMAdaptor::XSETTINGS ) )
         {
-            SendInternalEvent( m_aFrames.front(), nullptr, SalEvent::SettingsChanged );
+            PostEvent( pAnyFrame, nullptr, SalEvent::SettingsChanged );
         }
         // let's see if one of our frames wants to swallow these events
         // get the frame
-        for( std::list< SalFrame* >::const_iterator it = m_aFrames.begin();
-                 it != m_aFrames.end(); ++it )
+        for (auto pSalFrame : m_aFrames )
         {
-            GtkSalFrame* pFrame = static_cast<GtkSalFrame*>(*it);
+            GtkSalFrame* pFrame = static_cast<GtkSalFrame*>( const_cast<SalFrame*>( pSalFrame ) );
             if( pFrame->GetSystemData()->aWindow == pEvent->xany.window ||
                 ( pFrame->getForeignParent() && pFrame->getForeignParentWindow() == pEvent->xany.window ) ||
                 ( pFrame->getForeignTopLevel() && pFrame->getForeignTopLevelWindow() == pEvent->xany.window )
@@ -213,11 +211,10 @@ bool GtkSalDisplay::Dispatch( XEvent* pEvent )
     {
         // let's see if one of our frames wants to swallow these events
         // get the child frame
-        for( std::list< SalFrame* >::const_iterator it = m_aFrames.begin();
-             it != m_aFrames.end(); ++it )
+        for (auto pSalFrame : m_aFrames )
         {
-            if ((*it)->GetSystemData()->aWindow == pEvent->xany.window)
-                return static_cast<GtkSalFrame*>(*it)->Dispatch( pEvent );
+            if (pSalFrame->GetSystemData()->aWindow == pEvent->xany.window)
+                return static_cast<GtkSalFrame*>( const_cast<SalFrame*>( pSalFrame ) )->Dispatch( pEvent );
         }
     }
 
@@ -816,47 +813,23 @@ void GtkSalTimer::Stop()
     }
 }
 
-gboolean GtkSalData::userEventFn( gpointer data )
-{
-    gboolean bContinue = FALSE;
-    GtkSalData *pThis = static_cast<GtkSalData *>(data);
-    GenericUnixSalData *pData = GetGenericUnixSalData();
-    SolarMutexGuard aGuard;
-    const SalGenericDisplay *pDisplay = pData->GetDisplay();
-    if (pDisplay)
-    {
-        OSL_ASSERT(static_cast<const SalGenericDisplay *>(pThis->GetGtkDisplay()) == pDisplay);
-        {
-            osl::MutexGuard g (pThis->GetGtkDisplay()->getEventGuardMutex());
-
-            if( !pThis->GetGtkDisplay()->HasUserEvents() )
-            {
-                if( pThis->m_pUserEvent )
-                {
-                    g_source_unref (pThis->m_pUserEvent);
-                    pThis->m_pUserEvent = nullptr;
-                }
-                bContinue = FALSE;
-            }
-            else
-                bContinue = TRUE;
-        }
-        pThis->GetGtkDisplay()->DispatchInternalEvent();
-    }
-
-    return bContinue;
-}
-
 extern "C" {
     static gboolean call_userEventFn( void *data )
     {
+        GtkSalData *pThis = static_cast<GtkSalData *>(data);
         SolarMutexGuard aGuard;
-        return GtkSalData::userEventFn( data );
+        const SalGenericDisplay *pDisplay = GetGenericUnixSalData()->GetDisplay();
+        if ( pDisplay )
+        {
+            GtkSalDisplay *pThisDisplay = pThis->GetGtkDisplay();
+            assert(static_cast<const SalGenericDisplay *>(pThisDisplay) == pDisplay);
+            pThisDisplay->DispatchInternalEvent();
+        }
+        return TRUE;
     }
 }
 
-// hEventGuard_ held during this invocation
-void GtkSalData::PostUserEvent()
+void GtkSalData::TriggerUserEventProcessing()
 {
     if (m_pUserEvent)
         g_main_context_wakeup (nullptr); // really needed ?
@@ -871,16 +844,28 @@ void GtkSalData::PostUserEvent()
     }
 }
 
-void GtkSalDisplay::PostUserEvent()
+void GtkSalData::TriggerAllUserEventsProcessed()
+{
+    assert( m_pUserEvent );
+    g_source_destroy( m_pUserEvent );
+    g_source_unref( m_pUserEvent );
+    m_pUserEvent = nullptr;
+}
+
+void GtkSalDisplay::TriggerUserEventProcessing()
+{
+    GetGtkSalData()->TriggerUserEventProcessing();
+}
+
+void GtkSalDisplay::TriggerAllUserEventsProcessed()
 {
-    GetGtkSalData()->PostUserEvent();
+    GetGtkSalData()->TriggerAllUserEventsProcessed();
 }
 
 GtkWidget* GtkSalDisplay::findGtkWidgetForNativeHandle(sal_uIntPtr hWindow) const
 {
-    for (auto it = m_aFrames.begin(); it != m_aFrames.end(); ++it)
+    for (auto pFrame : m_aFrames)
     {
-        SalFrame* pFrame = *it;
         const SystemEnvData* pEnvData = pFrame->GetSystemData();
         if (pEnvData->aWindow == hWindow)
             return GTK_WIDGET(pEnvData->pWidget);
@@ -888,7 +873,7 @@ GtkWidget* GtkSalDisplay::findGtkWidgetForNativeHandle(sal_uIntPtr hWindow) cons
     return nullptr;
 }
 
-void GtkSalDisplay::deregisterFrame( SalFrame* pFrame )
+void GtkSalDisplay::deregisterFrame( const SalFrame* pFrame )
 {
     if( m_pCapture == pFrame )
     {
diff --git a/vcl/unx/gtk/gtksalframe.cxx b/vcl/unx/gtk/gtksalframe.cxx
index 3ca2b4816ad8..0077a056bb53 100644
--- a/vcl/unx/gtk/gtksalframe.cxx
+++ b/vcl/unx/gtk/gtksalframe.cxx
@@ -2180,10 +2180,9 @@ void GtkSalFrame::grabPointer( bool bGrab, bool bOwnerEvents )
     if( bGrab )
     {
         bool bUseGdkGrab = true;
-        const std::list< SalFrame* >& rFrames = getDisplay()->getFrames();
-        for( std::list< SalFrame* >::const_iterator it = rFrames.begin(); it != rFrames.end(); ++it )
+        for (auto pSalFrame : getDisplay()->getFrames() )
         {
-            const GtkSalFrame* pFrame = static_cast< const GtkSalFrame* >(*it);
+            const GtkSalFrame* pFrame = static_cast< const GtkSalFrame* >( pSalFrame );
             if( pFrame->m_bWindowIsGtkPlug )
             {
                 bUseGdkGrab = false;
diff --git a/vcl/unx/gtk3/gtk3gtkdata.cxx b/vcl/unx/gtk3/gtk3gtkdata.cxx
index 844dc77f20c1..acb7db876b73 100644
--- a/vcl/unx/gtk3/gtk3gtkdata.cxx
+++ b/vcl/unx/gtk3/gtk3gtkdata.cxx
@@ -778,47 +778,23 @@ void GtkSalTimer::Stop()
     }
 }
 
-gboolean GtkSalData::userEventFn( gpointer data )
-{
-    gboolean bContinue = FALSE;
-    GtkSalData *pThis = static_cast<GtkSalData *>(data);
-    GenericUnixSalData *pData = GetGenericUnixSalData();
-    SolarMutexGuard aGuard;
-    const SalGenericDisplay *pDisplay = pData->GetDisplay();
-    if (pDisplay)
-    {
-        OSL_ASSERT(static_cast<const SalGenericDisplay *>(pThis->GetGtkDisplay()) == pDisplay);
-        {
-            osl::MutexGuard g (pThis->GetGtkDisplay()->getEventGuardMutex());
-
-            if( !pThis->GetGtkDisplay()->HasUserEvents() )
-            {
-                if( pThis->m_pUserEvent )
-                {
-                    g_source_unref (pThis->m_pUserEvent);
-                    pThis->m_pUserEvent = nullptr;
-                }
-                bContinue = FALSE;
-            }
-            else
-                bContinue = TRUE;
-        }
-        pThis->GetGtkDisplay()->DispatchInternalEvent();
-    }
-
-    return bContinue;
-}
-
 extern "C" {
     static gboolean call_userEventFn( void *data )
     {
+        GtkSalData *pThis = static_cast<GtkSalData *>(data);
         SolarMutexGuard aGuard;
-        return GtkSalData::userEventFn( data );
+        const SalGenericDisplay *pDisplay = GetGenericUnixSalData()->GetDisplay();
+        if ( pDisplay )
+        {
+            GtkSalDisplay *pThisDisplay = pThis->GetGtkDisplay();
+            assert(static_cast<const SalGenericDisplay *>(pThisDisplay) == pDisplay);
+            pThisDisplay->DispatchInternalEvent();
+        }
+        return TRUE;
     }
 }
 
-// hEventGuard_ held during this invocation
-void GtkSalData::PostUserEvent()
+void GtkSalData::TriggerUserEventProcessing()
 {
     if (m_pUserEvent)
         g_main_context_wakeup (nullptr); // really needed ?
@@ -836,24 +812,36 @@ void GtkSalData::PostUserEvent()
     }
 }
 
-void GtkSalDisplay::PostUserEvent()
+void GtkSalData::TriggerAllUserEventsProcessed()
+{
+    assert( m_pUserEvent );
+    g_source_destroy( m_pUserEvent );
+    g_source_unref( m_pUserEvent );
+    m_pUserEvent = nullptr;
+}
+
+void GtkSalDisplay::TriggerUserEventProcessing()
+{
+    GetGtkSalData()->TriggerUserEventProcessing();
+}
+
+void GtkSalDisplay::TriggerAllUserEventsProcessed()
 {
-    GetGtkSalData()->PostUserEvent();
+    GetGtkSalData()->TriggerAllUserEventsProcessed();
 }
 
 GtkWidget* GtkSalDisplay::findGtkWidgetForNativeHandle(sal_uIntPtr hWindow) const
 {
-    for (auto it = m_aFrames.begin(); it != m_aFrames.end(); ++it)
+    for (auto pSalFrame : m_aFrames )
     {
-        SalFrame* pFrame = *it;
-        const SystemEnvData* pEnvData = pFrame->GetSystemData();
+        const SystemEnvData* pEnvData = pSalFrame->GetSystemData();
         if (pEnvData->aWindow == hWindow)
             return GTK_WIDGET(pEnvData->pWidget);
     }
     return nullptr;
 }
 
-void GtkSalDisplay::deregisterFrame( SalFrame* pFrame )
+void GtkSalDisplay::deregisterFrame( const SalFrame* pFrame )
 {
     if( m_pCapture == pFrame )
     {
diff --git a/vcl/unx/kde4/KDESalDisplay.cxx b/vcl/unx/kde4/KDESalDisplay.cxx
index 4647b3d111c8..8a2422a3918d 100644
--- a/vcl/unx/kde4/KDESalDisplay.cxx
+++ b/vcl/unx/kde4/KDESalDisplay.cxx
@@ -86,4 +86,9 @@ bool SalKDEDisplay::checkDirectInputEvent( XEvent* ev )
     return false;
 }
 
+void SalKDEDisplay::TriggerUserEventProcessing()
+{
+    static_cast<KDEXLib*>(GetXLib())->TriggerUserEventProcessing();
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/kde4/KDESalDisplay.hxx b/vcl/unx/kde4/KDESalDisplay.hxx
index 4a0458dcc5c2..07b5ca3dadf5 100644
--- a/vcl/unx/kde4/KDESalDisplay.hxx
+++ b/vcl/unx/kde4/KDESalDisplay.hxx
@@ -23,15 +23,18 @@
 
 class SalKDEDisplay : public SalX11Display
 {
-    public:
-        explicit SalKDEDisplay( Display* pDisp );
-        virtual ~SalKDEDisplay() override;
-        static SalKDEDisplay* self();
-        virtual void Yield() override;
-        bool checkDirectInputEvent( XEvent* ev );
-    private:
-        Atom xim_protocol;
-        static SalKDEDisplay* selfptr;
+    Atom xim_protocol;
+    static SalKDEDisplay* selfptr;
+
+protected:
+    virtual void TriggerUserEventProcessing() override;
+
+public:
+    explicit SalKDEDisplay( Display* pDisp );
+    virtual ~SalKDEDisplay() override;
+    static SalKDEDisplay* self();
+    virtual void Yield() override;
+    bool checkDirectInputEvent( XEvent* ev );
 };
 
 inline SalKDEDisplay* SalKDEDisplay::self()
diff --git a/vcl/unx/kde4/KDEXLib.cxx b/vcl/unx/kde4/KDEXLib.cxx
index 402461e45bc6..f047ed9fce65 100644
--- a/vcl/unx/kde4/KDEXLib.cxx
+++ b/vcl/unx/kde4/KDEXLib.cxx
@@ -357,10 +357,10 @@ void KDEXLib::Wakeup()
     QAbstractEventDispatcher::instance( qApp->thread())->wakeUp(); // main thread event loop
 }
 
-void KDEXLib::PostUserEvent()
+void KDEXLib::TriggerUserEventProcessing()
 {
     if( !m_isGlibEventLoopType )
-        return SalXLib::PostUserEvent();
+        return SalXLib::TriggerUserEventProcessing();
     QApplication::postEvent(this, new QEvent(QEvent::Type( m_postUserEventId )));
 }
 
diff --git a/vcl/unx/kde4/KDEXLib.hxx b/vcl/unx/kde4/KDEXLib.hxx
index 2fe497d019fa..4c06104b4c59 100644
--- a/vcl/unx/kde4/KDEXLib.hxx
+++ b/vcl/unx/kde4/KDEXLib.hxx
@@ -83,7 +83,7 @@ class KDEXLib : public QObject, public SalXLib
         virtual void StartTimer( sal_uLong nMS ) override;
         virtual void StopTimer() override;
         virtual void Wakeup() override;
-        virtual void PostUserEvent() override;
+        void TriggerUserEventProcessing();
 
         void doStartup();
         bool allowKdeDialogs() { return m_allowKdeDialogs; }
commit 49b0be286bebaef58f74681610fadc8aad63f7ad
Author: Jan-Marek Glogowski <glogow at fbihome.de>
Date:   Fri Aug 25 14:52:38 2017 +0200

    Disable ScHeaderFooterTextCursor scenario test
    
    Just like the ScHeaderFooterTextObj, it depends on weak referenced
    objects, which might be gone / cleaned up at test time.
    
    Change-Id: I52503646c51b0915df11f5c7f90c16208e45879a

diff --git a/sc/qa/unoapi/sc_4.sce b/sc/qa/unoapi/sc_4.sce
index d631ac99878b..ce879cc83272 100644
--- a/sc/qa/unoapi/sc_4.sce
+++ b/sc/qa/unoapi/sc_4.sce
@@ -36,6 +36,8 @@
 # The css::text::XTextRange test fails often when the weak SHF_ContentObj is
 # already gone. If just this test is disabled, later tests of this object fail
 # too, so this disables the whole interface.
+# Same for ScHeaderFooterTextCursor.
+# -o sc.ScHeaderFooterTextCursor
 # -o sc.ScHeaderFooterTextObj
 -o sc.ScIndexEnumeration_CellAnnotationsEnumeration
 -o sc.ScIndexEnumeration_CellAreaLinksEnumeration
commit 7ef34163216d575f43dfef6fa734ee06d2fe13af
Author: Noel Grandin <noel.grandin at collabora.co.uk>
Date:   Wed Sep 27 09:25:17 2017 +0200

    loplugin:unusedmethods
    
    Change-Id: I5d75baa2af046f377b49e967783fb06cd9e885ef
    Reviewed-on: https://gerrit.libreoffice.org/42841
    Tested-by: Jenkins <ci at libreoffice.org>
    Reviewed-by: Noel Grandin <noel.grandin at collabora.co.uk>

diff --git a/cui/source/customize/cfgutil.cxx b/cui/source/customize/cfgutil.cxx
index 2a8e591b82dc..02a34d9daf34 100644
--- a/cui/source/customize/cfgutil.cxx
+++ b/cui/source/customize/cfgutil.cxx
@@ -1265,8 +1265,6 @@ IMPL_LINK( SvxScriptSelectorDialog, ClickHdl, Button *, pButton, void )
     }
     else if (pButton == m_pOKButton)
     {
-        GetAddHdl().Call( *this );
-
         // If we are displaying Slot API commands then this the dialog is being
         // run from Tools/Configure and we should not close it
         if ( !m_bShowSlots )
@@ -1293,12 +1291,6 @@ SvxScriptSelectorDialog::SetRunLabel()
     m_pOKButton->SetText(CuiResId(RID_SVXSTR_SELECTOR_RUN));
 }
 
-void
-SvxScriptSelectorDialog::SetDialogDescription( const OUString& rDescription )
-{
-    m_pDialogDescription->SetText( rDescription );
-}
-
 OUString
 SvxScriptSelectorDialog::GetScriptURL() const
 {
@@ -1320,10 +1312,4 @@ SvxScriptSelectorDialog::GetScriptURL() const
     return result;
 }
 
-OUString
-SvxScriptSelectorDialog::GetSelectedDisplayName()
-{
-    return m_pCommands->GetEntryText( m_pCommands->FirstSelected() );
-}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/cui/source/inc/cfgutil.hxx b/cui/source/inc/cfgutil.hxx
index 528b26f04b0e..3b2b190ed26e 100644
--- a/cui/source/inc/cfgutil.hxx
+++ b/cui/source/inc/cfgutil.hxx
@@ -192,7 +192,6 @@ class SvxScriptSelectorDialog : public ModalDialog
     OUString                               m_sDefaultDesc;
     SfxStylesInfo_Impl                     m_aStylesInfo;
     bool                                   m_bShowSlots;
-    Link<SvxScriptSelectorDialog&,void>    m_aAddHdl;
 
     DECL_LINK( ClickHdl, Button *, void );
     DECL_LINK( SelectHdl, SvTreeListBox*, void );
@@ -210,18 +209,8 @@ public:
     virtual ~SvxScriptSelectorDialog() override;
     virtual void dispose() override;
 
-    void        SetAddHdl( const Link<SvxScriptSelectorDialog&,void>& rLink ) { m_aAddHdl = rLink; }
-    const Link<SvxScriptSelectorDialog&,void>& GetAddHdl() const { return m_aAddHdl; }
-
-    void        SetImageProvider(SaveInData* provider)
-    {
-        m_pCategories->SetImageProvider(provider);
-    }
-
     OUString    GetScriptURL() const;
-    OUString    GetSelectedDisplayName();
     void        SetRunLabel();
-    void        SetDialogDescription(const OUString& rDescription);
 };
 
 #endif
diff --git a/oox/source/drawingml/diagram/diagramlayoutatoms.cxx b/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
index 147790f9f5db..dd69d19c1f5f 100644
--- a/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
+++ b/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
@@ -122,18 +122,6 @@ bool ConditionAtom::compareResult(sal_Int32 nOperator, sal_Int32 nFirst, sal_Int
     }
 }
 
-bool ConditionAtom::compareResult(sal_Int32 nOperator, const OUString& sFirst, const OUString& sSecond)
-{
-    switch (nOperator)
-    {
-    case XML_equ: return sFirst == sSecond;
-    case XML_neq: return sFirst != sSecond;
-    default:
-        SAL_WARN("oox.drawingml", "unsupported operator: " << nOperator);
-        return false;
-    }
-}
-
 const dgm::Point* ConditionAtom::getPresNode() const
 {
     const DiagramData::PointsNameMap& rPoints = mrLayoutNode.getDiagram().getData()->getPointsPresNameMap();
diff --git a/oox/source/drawingml/diagram/diagramlayoutatoms.hxx b/oox/source/drawingml/diagram/diagramlayoutatoms.hxx
index 92ef240e6785..f4928565c048 100644
--- a/oox/source/drawingml/diagram/diagramlayoutatoms.hxx
+++ b/oox/source/drawingml/diagram/diagramlayoutatoms.hxx
@@ -184,7 +184,6 @@ public:
     virtual const std::vector<LayoutAtomPtr>& getChildren() const override;
 private:
     static bool compareResult(sal_Int32 nOperator, sal_Int32 nFirst, sal_Int32 nSecond);
-    static bool compareResult(sal_Int32 nOperator, const OUString& sFirst, const OUString& sSecond);
     const dgm::Point* getPresNode() const;
     sal_Int32 getNodeCount() const;
 
commit 7c52d86f7b05fe7e0178f6d98a12a531b88a32ff
Author: Noel Grandin <noel at peralex.com>
Date:   Wed Sep 20 09:06:34 2017 +0200

    rename mpFirstInstance->mpInstance
    
    Change-Id: I472df5821cb74a16d5ea00a1939b0e1bdf9072aa
    Reviewed-on: https://gerrit.libreoffice.org/42518
    Tested-by: Jenkins <ci at libreoffice.org>
    Reviewed-by: Noel Grandin <noel.grandin at collabora.co.uk>

diff --git a/vcl/inc/win/saldata.hxx b/vcl/inc/win/saldata.hxx
index 245d986915b1..db6771c8095e 100644
--- a/vcl/inc/win/saldata.hxx
+++ b/vcl/inc/win/saldata.hxx
@@ -87,7 +87,7 @@ public:
     HHOOK                   mhSalObjMsgHook;        // hook to get interesting msg for SalObject
     HWND                    mhWantLeaveMsg;         // window handle, that want a MOUSELEAVE message
     AutoTimer*              mpMouseLeaveTimer;      // Timer for MouseLeave Test
-    WinSalInstance*         mpFirstInstance;        // pointer of first instance
+    WinSalInstance*         mpInstance;
     WinSalFrame*            mpFirstFrame;           // pointer of first frame
     WinSalObject*           mpFirstObject;          // pointer of first object window
     WinSalVirtualDevice*    mpFirstVD;              // first VirDev
diff --git a/vcl/win/app/salinst.cxx b/vcl/win/app/salinst.cxx
index b77e84eac739..487cf7fb09d2 100644
--- a/vcl/win/app/salinst.cxx
+++ b/vcl/win/app/salinst.cxx
@@ -137,7 +137,7 @@ void SalYieldMutex::BeforeReleaseHandler()
 /// this function to avoid deadlock
 void SalYieldMutex::doAcquire( sal_uInt32 nLockCount )
 {
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     if ( pInst && pInst->IsMainThread() )
     {
         if ( pInst->mbNoYieldLock )
@@ -170,7 +170,7 @@ void SalYieldMutex::doAcquire( sal_uInt32 nLockCount )
 
 sal_uInt32 SalYieldMutex::doRelease( const bool bUnlockAll )
 {
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     if ( pInst && pInst->mbNoYieldLock && pInst->IsMainThread() )
         return 1;
 
@@ -183,7 +183,7 @@ sal_uInt32 SalYieldMutex::doRelease( const bool bUnlockAll )
 
 bool SalYieldMutex::tryToAcquire()
 {
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     if ( pInst )
     {
         if ( pInst->mbNoYieldLock && pInst->IsMainThread() )
@@ -197,20 +197,20 @@ bool SalYieldMutex::tryToAcquire()
 
 void ImplSalYieldMutexAcquireWithWait( sal_uInt32 nCount )
 {
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     if ( pInst )
         pInst->mpSalYieldMutex->acquire( nCount );
 }
 
 bool ImplSalYieldMutexTryToAcquire()
 {
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     return pInst ? pInst->mpSalYieldMutex->tryToAcquire() : false;
 }
 
 void ImplSalYieldMutexRelease()
 {
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     if ( pInst )
     {
         GdiFlush();
@@ -220,11 +220,11 @@ void ImplSalYieldMutexRelease()
 
 bool SalYieldMutex::IsCurrentThread() const
 {
-    if ( !GetSalData()->mpFirstInstance->mbNoYieldLock )
+    if ( !GetSalData()->mpInstance->mbNoYieldLock )
         // For the Windows backend, the LO identifier is the system thread ID
         return m_nThreadId == GetCurrentThreadId();
     else
-        return GetSalData()->mpFirstInstance->IsMainThread();
+        return GetSalData()->mpInstance->IsMainThread();
 }
 
 void SalData::initKeyCodeMap()
@@ -270,7 +270,7 @@ SalData::SalData()
     mhSalObjMsgHook = nullptr;  // hook to get interesting msg for SalObject
     mhWantLeaveMsg = nullptr;   // window handle, that want a MOUSELEAVE message
     mpMouseLeaveTimer = nullptr; // Timer for MouseLeave Test
-    mpFirstInstance = nullptr;  // pointer of first instance
+    mpInstance = nullptr;  // pointer of first instance
     mpFirstFrame = nullptr;     // pointer of first frame
     mpFirstObject = nullptr;    // pointer of first object window
     mpFirstVD = nullptr;        // first VirDev
@@ -436,7 +436,7 @@ SalInstance* CreateSalInstance()
     WinSalInstance* pInst = new WinSalInstance;
 
     // init instance (only one instance in this version !!!)
-    pSalData->mpFirstInstance   = pInst;
+    pSalData->mpInstance   = pInst;
     pInst->mhInst    = pSalData->mhInst;
     pInst->mhComWnd  = hComWnd;
 
@@ -455,8 +455,8 @@ void DestroySalInstance( SalInstance* pInst )
     ImplFreeSalGDI();
 
     // reset instance
-    if ( pSalData->mpFirstInstance == pInst )
-        pSalData->mpFirstInstance = nullptr;
+    if ( pSalData->mpInstance == pInst )
+        pSalData->mpInstance = nullptr;
 
     delete pInst;
 }
@@ -596,7 +596,7 @@ bool WinSalInstance::DoYield(bool bWait, bool bHandleAllCurrentEvents)
 LRESULT CALLBACK SalComWndProc( HWND, UINT nMsg, WPARAM wParam, LPARAM lParam, int& rDef )
 {
     LRESULT nRet = 0;
-    WinSalInstance *pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance *pInst = GetSalData()->mpInstance;
 
     switch ( nMsg )
     {
@@ -622,7 +622,7 @@ LRESULT CALLBACK SalComWndProc( HWND, UINT nMsg, WPARAM wParam, LPARAM lParam, i
         case SAL_MSG_CREATEFRAME:
             assert( !pInst->mbNoYieldLock );
             pInst->mbNoYieldLock = true;
-            nRet = reinterpret_cast<LRESULT>(ImplSalCreateFrame( GetSalData()->mpFirstInstance, reinterpret_cast<HWND>(lParam), (SalFrameStyleFlags)wParam ));
+            nRet = reinterpret_cast<LRESULT>(ImplSalCreateFrame( GetSalData()->mpInstance, reinterpret_cast<HWND>(lParam), (SalFrameStyleFlags)wParam ));
             pInst->mbNoYieldLock = false;
             rDef = FALSE;
             break;
@@ -662,7 +662,7 @@ LRESULT CALLBACK SalComWndProc( HWND, UINT nMsg, WPARAM wParam, LPARAM lParam, i
         case SAL_MSG_CREATEOBJECT:
             assert( !pInst->mbNoYieldLock );
             pInst->mbNoYieldLock = true;
-            nRet = reinterpret_cast<LRESULT>(ImplSalCreateObject( GetSalData()->mpFirstInstance, reinterpret_cast<WinSalFrame*>(lParam) ));
+            nRet = reinterpret_cast<LRESULT>(ImplSalCreateObject( GetSalData()->mpInstance, reinterpret_cast<WinSalFrame*>(lParam) ));
             pInst->mbNoYieldLock = false;
             rDef = FALSE;
             break;
diff --git a/vcl/win/app/saltimer.cxx b/vcl/win/app/saltimer.cxx
index 1e11a9c4dba5..62fe620b5522 100644
--- a/vcl/win/app/saltimer.cxx
+++ b/vcl/win/app/saltimer.cxx
@@ -38,7 +38,7 @@ static void CALLBACK SalTimerProc(PVOID pParameter, BOOLEAN bTimerOrWaitFired);
 void WinSalTimer::ImplStop()
 {
     SalData *const pSalData = GetSalData();
-    const WinSalInstance *pInst = pSalData->mpFirstInstance;
+    const WinSalInstance *pInst = pSalData->mpInstance;
     assert( !pInst || pSalData->mnAppThreadId == GetCurrentThreadId() );
 
     const HANDLE hTimer = m_nTimerId;
@@ -60,7 +60,7 @@ void WinSalTimer::ImplStop()
 void WinSalTimer::ImplStart( sal_uLong nMS )
 {
     SalData* pSalData = GetSalData();
-    assert( !pSalData->mpFirstInstance || pSalData->mnAppThreadId == GetCurrentThreadId() );
+    assert( !pSalData->mpInstance || pSalData->mnAppThreadId == GetCurrentThreadId() );
 
     // DueTime parameter is a DWORD, which is always an unsigned 32bit
     if (nMS > SAL_MAX_UINT32)
@@ -95,7 +95,7 @@ WinSalTimer::~WinSalTimer()
 
 void WinSalTimer::Start( sal_uLong nMS )
 {
-    WinSalInstance *pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance *pInst = GetSalData()->mpInstance;
     if ( pInst && !pInst->IsMainThread() )
     {
         BOOL const ret = PostMessageW(pInst->mhComWnd,
@@ -108,7 +108,7 @@ void WinSalTimer::Start( sal_uLong nMS )
 
 void WinSalTimer::Stop()
 {
-    WinSalInstance *pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance *pInst = GetSalData()->mpInstance;
     if ( pInst && !pInst->IsMainThread() )
     {
         BOOL const ret = PostMessageW(pInst->mhComWnd,
@@ -131,7 +131,7 @@ static void CALLBACK SalTimerProc(PVOID data, BOOLEAN)
         // always post message when the timer fires, we will remove the ones
         // that happened during execution of the callback later directly from
         // the message queue
-        BOOL const ret = PostMessageW(GetSalData()->mpFirstInstance->mhComWnd,
+        BOOL const ret = PostMessageW(GetSalData()->mpInstance->mhComWnd,
                                       SAL_MSG_TIMER_CALLBACK,
                                       reinterpret_cast<WPARAM>(data), 0);
 #if OSL_DEBUG_LEVEL > 0
diff --git a/vcl/win/gdi/salprn.cxx b/vcl/win/gdi/salprn.cxx
index 4775e804f2f9..211a524705d2 100644
--- a/vcl/win/gdi/salprn.cxx
+++ b/vcl/win/gdi/salprn.cxx
@@ -397,7 +397,7 @@ static bool ImplUpdateSalJobSetup( WinSalInfoPrinter const * pPrinter, ImplJobSe
 
     // Release mutex, in the other case we don't get paints and so on
     sal_uInt32 nMutexCount = 0;
-    WinSalInstance* pInst = GetSalData()->mpFirstInstance;
+    WinSalInstance* pInst = GetSalData()->mpInstance;
     if ( pInst && pVisibleDlgParent )
         nMutexCount = pInst->ReleaseYieldMutex( true );
 

... etc. - the rest is truncated


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