lok: calc formula bar tunneling: function list callback

Added a lok callback for sending the list of functions matching the
current characters typed by the user.

Change-Id: Ia971fc55ec5eb961b4098592a8049dd0eed3ba14
Reviewed-on: https://gerrit.libreoffice.org/83750
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

4 files changed, 68 insertions, 0 deletions

diff --git a/desktop/source/lib/init.cxx b/desktop/source/lib/init.cxx
index db7ca361ba88..2d8f7290a05d 100644
--- a/desktop/source/lib/init.cxx
+++ b/desktop/source/lib/init.cxx
@@ -1187,6 +1187,7 @@ void CallbackFlushHandler::queue(const int type, const char* data)
         case LOK_CALLBACK_TEXT_VIEW_SELECTION:
         case LOK_CALLBACK_INVALIDATE_HEADER:
         case LOK_CALLBACK_WINDOW:
+        case LOK_CALLBACK_CALC_FUNCTION_LIST:
         {
             const auto& pos = std::find_if(m_queue.rbegin(), m_queue.rend(),
                     [type] (const queue_type::value_type& elem) { return (elem.Type == type); });
@@ -1263,6 +1264,7 @@ void CallbackFlushHandler::queue(const int type, const char* data)
             case LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR:
             case LOK_CALLBACK_TEXT_VIEW_SELECTION:
             case LOK_CALLBACK_VIEW_CURSOR_VISIBLE:
+            case LOK_CALLBACK_CALC_FUNCTION_LIST:
             {
                 const int nViewId = lcl_getViewId(payload);
                 removeAll(
diff --git a/include/LibreOfficeKit/LibreOfficeKitEnums.h b/include/LibreOfficeKit/LibreOfficeKitEnums.h
index 829eca07e500..fb4822613724 100644
--- a/include/LibreOfficeKit/LibreOfficeKitEnums.h
+++ b/include/LibreOfficeKit/LibreOfficeKitEnums.h
@@ -709,6 +709,12 @@ typedef enum
      * the description.
      */
     LOK_CALLBACK_JSDIALOG = 46,
+
+    /**
+     * Send the list of functions whose name starts with the characters entered
+     * by the user in the formula input bar.
+     */
+    LOK_CALLBACK_CALC_FUNCTION_LIST = 47
 }
 LibreOfficeKitCallbackType;
 
@@ -831,6 +837,8 @@ static inline const char* lokCallbackTypeToString(int nType)
         return "LOK_CALLBACK_REFERENCE_MARKS";
     case LOK_CALLBACK_JSDIALOG:
         return "LOK_CALLBACK_JSDIALOG";
+    case LOK_CALLBACK_CALC_FUNCTION_LIST:
+        return "LOK_CALLBACK_CALC_FUNCTION_LIST";
     }
 
     assert(!"Unknown LibreOfficeKitCallbackType type.");
diff --git a/libreofficekit/source/gtk/lokdocview.cxx b/libreofficekit/source/gtk/lokdocview.cxx
index f6fc2d8160ea..d5c9b919e0a9 100644
--- a/libreofficekit/source/gtk/lokdocview.cxx
+++ b/libreofficekit/source/gtk/lokdocview.cxx
@@ -1389,6 +1389,7 @@ callback (gpointer pData)
     case LOK_CALLBACK_CELL_AUTO_FILL_AREA:
     case LOK_CALLBACK_TABLE_SELECTED:
     case LOK_CALLBACK_JSDIALOG:
+    case LOK_CALLBACK_CALC_FUNCTION_LIST:
     {
         // TODO: Implement me
         break;
diff --git a/sc/source/ui/app/inputhdl.cxx b/sc/source/ui/app/inputhdl.cxx
index 950a8280a055..640ea40060e0 100644
--- a/sc/source/ui/app/inputhdl.cxx
+++ b/sc/source/ui/app/inputhdl.cxx
@@ -1022,6 +1022,11 @@ bool lcl_hasSingleToken(const OUString& s, sal_Unicode c)
 
 void ScInputHandler::ShowArgumentsTip( OUString& rSelText )
 {
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        return;
+    }
+
     ScDocShell* pDocSh = pActiveViewSh->GetViewData().GetDocShell();
     const sal_Unicode cSep = ScCompiler::GetNativeSymbolChar(ocSep);
     const sal_Unicode cSheetSep = lcl_getSheetSeparator(&pDocSh->GetDocument());
@@ -1276,6 +1281,58 @@ bool ScInputHandler::GetFuncName( OUString& aStart, OUString& aResult )
 
 void ScInputHandler::ShowFuncList( const ::std::vector< OUString > & rFuncStrVec )
 {
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        SfxViewShell* pViewShell = SfxViewShell::Current();
+        if (pViewShell && rFuncStrVec.size())
+        {
+            OUString aFuncNameStr;
+            OUString aDescFuncNameStr;
+            OStringBuffer aPayload;
+            aPayload.append("[ ");
+            for (const OUString& rFunc : rFuncStrVec)
+            {
+                if ( rFunc[rFunc.getLength()-1] == cParenthesesReplacement )
+                {
+                    aFuncNameStr = rFunc.copy(0, rFunc.getLength()-1);
+                }
+                else
+                {
+                    aFuncNameStr = rFunc;
+                }
+
+                FormulaHelper aHelper(ScGlobal::GetStarCalcFunctionMgr());
+                aDescFuncNameStr = aFuncNameStr + "()";
+                sal_Int32 nNextFStart = 0;
+                const IFunctionDescription* ppFDesc;
+                ::std::vector< OUString > aArgs;
+                OUString eqPlusFuncName = "=" + aDescFuncNameStr;
+                if ( aHelper.GetNextFunc( eqPlusFuncName, false, nNextFStart, nullptr, &ppFDesc, &aArgs ) )
+                {
+                    if ( !ppFDesc->getFunctionName().isEmpty() )
+                    {
+                        aPayload.append("{");
+                        aPayload.append("\"signature\": \"");
+                        OUString aSignature = ppFDesc->getSignature();
+                        aPayload.append(OUStringToOString(aSignature, RTL_TEXTENCODING_UTF8));
+                        aPayload.append("\", ");
+                        aPayload.append("\"description\": \"");
+                        OUString aFuncDescr = ppFDesc->getDescription();
+                        aPayload.append(OUStringToOString(aFuncDescr, RTL_TEXTENCODING_UTF8));
+                        aPayload.append("\"}, ");
+                    }
+                }
+            }
+            sal_Int32 nLen = aPayload.getLength();
+            aPayload[nLen - 2] = ' ';
+            aPayload[nLen - 1] = ']';
+
+            OString s = aPayload.makeStringAndClear();
+            pViewShell->libreOfficeKitViewCallback(LOK_CALLBACK_CALC_FUNCTION_LIST, s.getStr());
+        }
+        return;
+    }
+
     OUStringBuffer aTipStr;
     OUString aFuncNameStr;
     OUString aDescFuncNameStr;