Resolves tdf#107918 - Insert mode status activation and display

Patch shows Insert as well on macOS, and keep it hidden otherwise

Change-Id: Ie8dd32198d93c50ffd83e8aaf4b007b1ecf5c547
Reviewed-on: https://gerrit.libreoffice.org/68065
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/svx/strings.hrc

@@ -1227,6 +1227,7 @@
 #define RID_SVXSTR_OVERWRITE_HELPTEXT                       NC_("RID_SVXSTR_OVERWRITE_HELPTEXT", "Overwrite mode. Click to change to insert mode.")
 // To be shown in the status bar when in overwrite mode, please try to make it not longer than the word 'Overwrite'.
 #define RID_SVXSTR_OVERWRITE_TEXT                           NC_("RID_SVXSTR_OVERWRITE_TEXT", "Overwrite")
+#define RID_SVXSTR_INSERT_TEXT                              NC_("RID_SVXSTR_INSERT_TEXT", "Insert")
 #define RID_SVXSTR_XMLSEC_SIG_OK                            NC_("RID_SVXSTR_XMLSEC_SIG_OK", "Digital Signature: The document signature is OK.")
 #define RID_SVXSTR_XMLSEC_SIG_OK_NO_VERIFY                  NC_("RID_SVXSTR_XMLSEC_SIG_OK_NO_VERIFY", "Digital Signature: The document signature is OK, but the certificates could not be validated.")
 #define RID_SVXSTR_XMLSEC_SIG_NOT_OK                        NC_("RID_SVXSTR_XMLSEC_SIG_NOT_OK", "Digital Signature: The document signature does not match the document content. We strongly recommend you to do not trust this document.")

svx/source/stbctrls/insctrl.cxx

@@ -70,7 +70,13 @@ void SvxInsertStatusBarControl::Paint( const UserDrawEvent& )
 
 void SvxInsertStatusBarControl::DrawItemText_Impl()
 {
-    OUString aText;
+    OUString aText = "";
+    // tdf#107918 on macOS without an Insert key it's hard to figure out how to switch modes
+    // so we show both Insert and Overwrite
+#ifdef MACOSX
+    if ( bInsert )
+        aText = SvxResId( RID_SVXSTR_INSERT_TEXT );
+#endif
     if ( !bInsert )
         aText = SvxResId( RID_SVXSTR_OVERWRITE_TEXT );