cpp: Allow retrieving import result of key listing with locate mode

* lang/cpp/src/context_p.h (enum Context::Private::Operation): Add
value KeyListWithImport.
* lang/cpp/src/context.cpp (Context::startKeyListing, Context::nextKey):
Set lastop to KeyListWithImport if keylist mode includes Locate.
--

Adding Import to lastop for keylist operations that perform a locate
allows retrieving the import result with Context::importResult.

GnuPG-bug-id: 5951

lang/cpp/src/context.cpp

@@ -535,19 +535,25 @@ const char *Context::getSender ()
 
 Error Context::startKeyListing(const char *pattern, bool secretOnly)
 {
-    d->lastop = Private::KeyList;
+    d->lastop = (((keyListMode() & GpgME::Locate) == GpgME::Locate)
+                 ? Private::KeyListWithImport
+                 : Private::KeyList);
     return Error(d->lasterr = gpgme_op_keylist_start(d->ctx, pattern, int(secretOnly)));
 }
 
 Error Context::startKeyListing(const char *patterns[], bool secretOnly)
 {
-    d->lastop = Private::KeyList;
+    d->lastop = (((keyListMode() & GpgME::Locate) == GpgME::Locate)
+                 ? Private::KeyListWithImport
+                 : Private::KeyList);
     return Error(d->lasterr = gpgme_op_keylist_ext_start(d->ctx, patterns, int(secretOnly), 0));
 }
 
 Key Context::nextKey(GpgME::Error &e)
 {
-    d->lastop = Private::KeyList;
+    d->lastop = (((keyListMode() & GpgME::Locate) == GpgME::Locate)
+                 ? Private::KeyListWithImport
+                 : Private::KeyList);
     gpgme_key_t key = nullptr;
     e = Error(d->lasterr = gpgme_op_keylist_next(d->ctx, &key));
     return Key(key, false);

lang/cpp/src/context_p.h

@@ -53,6 +53,7 @@ public:
 
         KeyGen    = 0x080,
         KeyList   = 0x100,
+        KeyListWithImport = KeyList | Import, // gpgme_keylist_result_t and gpgme_import_result_t
         TrustList = 0x200, // no gpgme_trustlist_result_t, but nevertheless...
 
         Edit      = 0x400, // no gpgme_edit_result_t, but nevertheless...