sw draw text: emit LOK_CALLBACK_INVALIDATE_VIEW_CURSOR from registerCallback()

With this, in case the first view has an active text edit and a new view
is created, then the cursor position is instantly visible in the second
view, even if the first view's cursor does not move later.

Change-Id: Ia82e7dc1ce9bb58c67a280179ecadc74d3b63026

3 files changed, 26 insertions, 2 deletions

diff --git a/editeng/source/editeng/editview.cxx b/editeng/source/editeng/editview.cxx
index 1bc28d3ad979..f7f01f154af5 100644
--- a/editeng/source/editeng/editview.cxx
+++ b/editeng/source/editeng/editview.cxx
@@ -592,6 +592,11 @@ void EditView::RegisterViewShell(OutlinerViewShell* pViewShell)
     pImpEditView->RegisterViewShell(pViewShell);
 }
 
+void EditView::RegisterOtherShell(OutlinerViewShell* pOtherShell)
+{
+    pImpEditView->RegisterOtherShell(pOtherShell);
+}
+
 void EditView::SetControlWord( EVControlBits nWord )
 {
     pImpEditView->nControl = nWord;
diff --git a/editeng/source/editeng/impedit.cxx b/editeng/source/editeng/impedit.cxx
index 36b08ebea2fb..c0d920197a40 100644
--- a/editeng/source/editeng/impedit.cxx
+++ b/editeng/source/editeng/impedit.cxx
@@ -80,6 +80,7 @@ ImpEditView::ImpEditView( EditView* pView, EditEngine* pEng, vcl::Window* pWindo
     pPointer            = nullptr;
     pBackgroundColor    = nullptr;
     mpViewShell = nullptr;
+    mpOtherShell = nullptr;
     nScrollDiffX        = 0;
     nExtraCursorFlags   = 0;
     nCursorBidiLevel    = CURSOR_BIDILEVEL_DONTKNOW;
@@ -122,6 +123,11 @@ void ImpEditView::RegisterViewShell(OutlinerViewShell* pViewShell)
     mpViewShell = pViewShell;
 }
 
+void ImpEditView::RegisterOtherShell(OutlinerViewShell* pOtherShell)
+{
+    mpOtherShell = pOtherShell;
+}
+
 const OutlinerViewShell* ImpEditView::GetViewShell() const
 {
     return mpViewShell;
@@ -1005,8 +1011,17 @@ void ImpEditView::ShowCursor( bool bGotoCursor, bool bForceVisCursor )
             aRect.setWidth(0);
 
             OString sRect = aRect.toString();
-            mpViewShell->libreOfficeKitViewCallback(LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR, sRect.getStr());
-            mpViewShell->NotifyOtherViews(LOK_CALLBACK_INVALIDATE_VIEW_CURSOR, "rectangle", sRect);
+            if (mpOtherShell)
+            {
+                // An other shell wants to know about our existing cursor.
+                if (mpViewShell != mpOtherShell)
+                    mpViewShell->NotifyOtherView(mpOtherShell, LOK_CALLBACK_INVALIDATE_VIEW_CURSOR, "rectangle", sRect);
+            }
+            else
+            {
+                mpViewShell->libreOfficeKitViewCallback(LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR, sRect.getStr());
+                mpViewShell->NotifyOtherViews(LOK_CALLBACK_INVALIDATE_VIEW_CURSOR, "rectangle", sRect);
+            }
         }
 
         CursorDirection nCursorDir = CursorDirection::NONE;
diff --git a/editeng/source/editeng/impedit.hxx b/editeng/source/editeng/impedit.hxx
index 612fe41f7236..3daf3313a2fe 100644
--- a/editeng/source/editeng/impedit.hxx
+++ b/editeng/source/editeng/impedit.hxx
@@ -223,6 +223,8 @@ private:
     Color*              pBackgroundColor;
     /// Containing view shell, if any.
     OutlinerViewShell* mpViewShell;
+    /// An other shell, just listening to our state, if any.
+    OutlinerViewShell* mpOtherShell;
     EditEngine*         pEditEngine;
     VclPtr<vcl::Window> pOutWin;
     Pointer*            pPointer;
@@ -370,6 +372,8 @@ public:
     /// Informs this edit view about which view shell contains it.
     void RegisterViewShell(OutlinerViewShell* pViewShell);
     const OutlinerViewShell* GetViewShell() const;
+    /// Informs this edit view about which other shell listens to it.
+    void RegisterOtherShell(OutlinerViewShell* pViewShell);
 
     bool            IsWrongSpelledWord( const EditPaM& rPaM, bool bMarkIfWrong );
     OUString        SpellIgnoreWord();