Remove redundant function indirection in SfxHintPoster

SfxHintPoster::mLink always pointed to SfxDispatcher::PostMsgHandler and
except in ~SfxDispatcher, it was reinitialized to empty i.e. cleared.
This extra indirection is now removed.
SfxHintPoster was using SvRefBase to persist even after SfxDispatcher
was deleted and then deleted itself after SfxHintPoster::Post call was
completed. This extra indirection was adding 4-5 frames while debugging.

Change-Id: Ibfd6d3aea10ddf45732adc1a9d63a25717a771fa
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162700
Tested-by: Hossein <hossein@libreoffice.org>
Reviewed-by: Hossein <hossein@libreoffice.org>

4 files changed, 11 insertions, 12 deletions

diff --git a/include/sfx2/dispatch.hxx b/include/sfx2/dispatch.hxx
index 7216fc92badc..eea69d2a5abc 100644
--- a/include/sfx2/dispatch.hxx
+++ b/include/sfx2/dispatch.hxx
@@ -80,6 +80,7 @@ friend class SfxBindings;
 friend class SfxStateCache;
 friend class SfxPopupMenuManager;
 friend class SfxHelp;
+friend class SfxHintPoster;
 
     DECL_DLLPRIVATE_LINK( EventHdl_Impl, Timer *, void );
     void PostMsgHandler(std::unique_ptr<SfxRequest>);
diff --git a/sfx2/source/control/dispatch.cxx b/sfx2/source/control/dispatch.cxx
index ccb0b0802f42..a780892b6940 100644
--- a/sfx2/source/control/dispatch.cxx
+++ b/sfx2/source/control/dispatch.cxx
@@ -303,7 +303,7 @@ void SfxDispatcher::Construct_Impl()
     for (SfxObjectBars_Impl & rObjBar : xImp->aObjBars)
         rObjBar.eId = ToolbarId::None;
 
-    xImp->xPoster = new SfxHintPoster(std::bind(&SfxDispatcher::PostMsgHandler, this, std::placeholders::_1));
+    xImp->xPoster = new SfxHintPoster(this);
 
     xImp->aIdle.SetPriority(TaskPriority::HIGH_IDLE );
     xImp->aIdle.SetInvokeHandler( LINK(this, SfxDispatcher, EventHdl_Impl ) );
@@ -335,7 +335,7 @@ SfxDispatcher::~SfxDispatcher()
 
     // So that no timer by Reschedule in PlugComm strikes the LeaveRegistrations
     xImp->aIdle.Stop();
-    xImp->xPoster->SetEventHdl( std::function<void (std::unique_ptr<SfxRequest>)>() );
+    xImp->xPoster->ClearLink();
 
     // Notify the stack variables in Call_Impl
     if ( xImp->pInCallAliveFlag )
diff --git a/sfx2/source/inc/hintpost.hxx b/sfx2/source/inc/hintpost.hxx
index ac37fde446ed..cca12647a283 100644
--- a/sfx2/source/inc/hintpost.hxx
+++ b/sfx2/source/inc/hintpost.hxx
@@ -23,6 +23,7 @@
 #include <tools/ref.hxx>
 #include <functional>
 #include <memory>
+#include <sfx2/dispatch.hxx>
 
 
 class SfxRequest;
@@ -41,17 +42,17 @@ class SfxRequest;
 class SfxHintPoster final : public SvRefBase
 {
 private:
-    std::function<void (std::unique_ptr<SfxRequest>)> m_Link;
+    class SfxDispatcher *m_Link;
 
                     DECL_LINK( DoEvent_Impl, void*, void );
 
     virtual         ~SfxHintPoster() override;
 
 public:
-                    SfxHintPoster(std::function<void (std::unique_ptr<SfxRequest>)> aLink);
+                    SfxHintPoster(SfxDispatcher *aLink);
 
     void            Post( std::unique_ptr<SfxRequest> pHint );
-    void            SetEventHdl(const std::function<void (std::unique_ptr<SfxRequest>)>& rLink);
+                    void            ClearLink();
 };
 
 #endif
diff --git a/sfx2/source/notify/hintpost.cxx b/sfx2/source/notify/hintpost.cxx
index 78c8c0499099..25d650de8ef2 100644
--- a/sfx2/source/notify/hintpost.cxx
+++ b/sfx2/source/notify/hintpost.cxx
@@ -25,8 +25,8 @@
 #include <vcl/svapp.hxx>
 #include <comphelper/lok.hxx>
 
-SfxHintPoster::SfxHintPoster(std::function<void(std::unique_ptr<SfxRequest>)> aLink)
-    : m_Link(std::move(aLink))
+SfxHintPoster::SfxHintPoster(SfxDispatcher* aLink)
+    : m_Link(aLink)
 {
 }
 
@@ -71,7 +71,7 @@ IMPL_LINK(SfxHintPoster, DoEvent_Impl, void*, pPostedHint, void)
             }
         }
 
-        m_Link(std::unique_ptr<SfxRequest>(pRequest));
+        m_Link->PostMsgHandler(std::unique_ptr<SfxRequest>(pRequest));
 
         if (bSetView)
         {
@@ -83,9 +83,6 @@ IMPL_LINK(SfxHintPoster, DoEvent_Impl, void*, pPostedHint, void)
     ReleaseRef();
 }
 
-void SfxHintPoster::SetEventHdl(const std::function<void(std::unique_ptr<SfxRequest>)>& rLink)
-{
-    m_Link = rLink;
-}
+void SfxHintPoster::ClearLink() { m_Link = nullptr; }
 
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