resolved fdo#71667 and fdo#72278, fdo#69971 follow-up fix

a9d85d62a889288b17899c8defc020da487d8b36 used
ScInputHandler::EnterHandler() to reset all sort of things related to
input EditEngine, but that is a handler for Enter and does not enter a
handler and actually attempts to finalize input, which lead to various
unwanted side effects.

Introduced ScInputHandler::InputTurnOffWinEngine() as only the input bar
window EditEngine needs to be reset in the window switching case (which
EnterHandler also does hence it did prevent that bug). The approach
could be polished with further refinement but most importantly fixes the
actual problems now.

Change-Id: I9a0bc452b49ba11a3313cafbc1e5972f41dc65c7
(cherry picked from commit dfd1a47a38dac743f9ed0f1e9507714bac027d35)

5 files changed, 24 insertions, 1 deletions

diff --git a/sc/inc/scmod.hxx b/sc/inc/scmod.hxx
index a871663f2102..5d7572e0dea9 100644
--- a/sc/inc/scmod.hxx
+++ b/sc/inc/scmod.hxx
@@ -217,6 +217,7 @@ SC_DLLPUBLIC    void                    SetAppOptions   ( const ScAppOptions& rO
     void                InputGetSelection( xub_StrLen& rStart, xub_StrLen& rEnd );
     void                InputSetSelection( xub_StrLen nStart, xub_StrLen nEnd );
     void                InputReplaceSelection( const OUString& rStr );
+    void                InputTurnOffWinEngine();
     OUString            InputGetFormulaStr();
     void                ActivateInputWindow( const OUString* pStr = NULL,
                                                 sal_Bool bMatrix = false );
diff --git a/sc/source/ui/app/inputhdl.cxx b/sc/source/ui/app/inputhdl.cxx
index 6f901ced2534..8001e678489d 100644
--- a/sc/source/ui/app/inputhdl.cxx
+++ b/sc/source/ui/app/inputhdl.cxx
@@ -3906,6 +3906,20 @@ void ScInputHandler::InputReplaceSelection( const OUString& rStr )
     bModified = true;
 }
 
+void ScInputHandler::InputTurnOffWinEngine()
+{
+    bInOwnChange = true;                // disable ModifyHdl (reset below)
+
+    eMode = SC_INPUT_NONE;
+    /* TODO: it would be better if there was some way to reset the input bar
+     * engine instead of deleting and having it recreate through
+     * GetFuncEditView(), but first least invasively let this fix fdo#71667 and
+     * fdo#72278 without reintroducing fdo#69971. */
+    StopInputWinEngine(true);
+
+    bInOwnChange = false;
+}
+
 //========================================================================
 //  ScInputHdlState
 //========================================================================
diff --git a/sc/source/ui/app/scmod.cxx b/sc/source/ui/app/scmod.cxx
index b4398e570b79..7dcbc9ff9f23 100644
--- a/sc/source/ui/app/scmod.cxx
+++ b/sc/source/ui/app/scmod.cxx
@@ -1543,6 +1543,13 @@ void ScModule::InputReplaceSelection( const OUString& rStr )
         pHdl->InputReplaceSelection( rStr );
 }
 
+void ScModule::InputTurnOffWinEngine()
+{
+    ScInputHandler* pHdl = GetInputHdl();
+    if (pHdl)
+        pHdl->InputTurnOffWinEngine();
+}
+
 OUString ScModule::InputGetFormulaStr()
 {
     ScInputHandler* pHdl = GetInputHdl();
diff --git a/sc/source/ui/formdlg/formula.cxx b/sc/source/ui/formdlg/formula.cxx
index 70571d23e22e..1503a8ccaef0 100644
--- a/sc/source/ui/formdlg/formula.cxx
+++ b/sc/source/ui/formdlg/formula.cxx
@@ -623,7 +623,7 @@ void ScFormulaDlg::setCurrentFormula(const OUString& _sReplacement)
         //ScMultiTextWnd::Paint a new editengine will have been created via
         //GetEditView with its default Modification handler enabled. So ensure
         //its off when we will access it via InputReplaceSelection
-        pScMod->InputEnterHandler();
+        pScMod->InputTurnOffWinEngine();
     }
     pScMod->InputReplaceSelection(_sReplacement);
 }
diff --git a/sc/source/ui/inc/inputhdl.hxx b/sc/source/ui/inc/inputhdl.hxx
index 73e97c4a4337..1c2d9c36b278 100644
--- a/sc/source/ui/inc/inputhdl.hxx
+++ b/sc/source/ui/inc/inputhdl.hxx
@@ -233,6 +233,7 @@ public:
     void            InputGetSelection       ( xub_StrLen& rStart, xub_StrLen& rEnd );
     void            InputSetSelection       ( xub_StrLen nStart, xub_StrLen nEnd );
     void            InputReplaceSelection   ( const OUString& rStr );
+    void            InputTurnOffWinEngine();
 
     bool            IsFormulaMode() const                   { return bFormulaMode; }
     ScInputWindow*  GetInputWindow()                        { return pInputWin; }