cpp: Handle statuses that need no response in the base edit interactor

* lang/cpp/src/editinteractor.cpp (edit_interactor_callback_impl): Do
not call nextState() if status needs no response.
* lang/cpp/src/gpgaddexistingsubkeyeditinteractor.cpp
(GpgAddExistingSubkeyEditInteractor::Private::nextState),
lang/cpp/src/gpgadduserideditinteractor.cpp
(GpgAddUserIDEditInteractor::nextState),
lang/cpp/src/gpggencardkeyinteractor.cpp
(GpgGenCardKeyInteractor::nextState),
lang/cpp/src/gpgrevokekeyeditinteractor.cpp
(GpgRevokeKeyEditInteractor::Private::nextState),
lang/cpp/src/gpgsetexpirytimeeditinteractor.cpp
(GpgSetExpiryTimeEditInteractor::nextState),
lang/cpp/src/gpgsetownertrusteditinteractor.cpp
(GpgSetOwnerTrustEditInteractor::nextState),
lang/cpp/src/gpgsignkeyeditinteractor.cpp
(GpgSignKeyEditInteractor::nextState): Remove handling of statuses that
need no response.
--

This change removes superfluous code duplication.

GnuPG-bug-id: 6305

lang/cpp/src/editinteractor.cpp

@@ -96,7 +96,13 @@ public:
 
             // advance to next state based on input:
             const unsigned int oldState = ei->state;
-            ei->state = ei->q->nextState(status, args, err);
+
+            if (ei->q->needsNoResponse(status)) {
+                // keep state
+            } else {
+                ei->state = ei->q->nextState(status, args, err);
+            }
+
             if (ei->debug) {
                 std::fprintf(ei->debug, "EditInteractor: %u -> nextState( %s, %s ) -> %u\n",
                              oldState, status_to_string(status), args ? args : "<null>", ei->state);

lang/cpp/src/gpgaddexistingsubkeyeditinteractor.cpp

@@ -105,10 +105,6 @@ unsigned int GpgAddExistingSubkeyEditInteractor::Private::nextState(unsigned int
     static const Error NO_KEY_ERROR = Error::fromCode(GPG_ERR_NO_KEY);
     static const Error INV_TIME_ERROR = Error::fromCode(GPG_ERR_INV_TIME);
 
-    if (q->needsNoResponse(status)) {
-        return q->state();
-    }
-
     switch (q->state()) {
     case START:
         if (status == GPGME_STATUS_GET_LINE &&

lang/cpp/src/gpgadduserideditinteractor.cpp

@@ -120,10 +120,6 @@ unsigned int GpgAddUserIDEditInteractor::nextState(unsigned int status, const ch
     static const Error INV_EMAIL_ERROR   = Error::fromCode(GPG_ERR_INV_USER_ID);
     static const Error INV_COMMENT_ERROR = Error::fromCode(GPG_ERR_INV_USER_ID);
 
-    if (needsNoResponse(status)) {
-        return state();
-    }
-
     using namespace GpgAddUserIDEditInteractor_Private;
 
     switch (state()) {

lang/cpp/src/gpggencardkeyinteractor.cpp

@@ -192,10 +192,6 @@ unsigned int GpgGenCardKeyInteractor::nextState(unsigned int status, const char
     static const Error INV_EMAIL_ERROR   = Error::fromCode(GPG_ERR_INV_USER_ID);
     static const Error INV_COMMENT_ERROR = Error::fromCode(GPG_ERR_INV_USER_ID);
 
-    if (needsNoResponse(status)) {
-        return state();
-    }
-
     using namespace GpgGenCardKeyInteractor_Private;
 
     switch (state()) {

lang/cpp/src/gpgrevokekeyeditinteractor.cpp

@@ -112,10 +112,6 @@ unsigned int GpgRevokeKeyEditInteractor::Private::nextState(unsigned int status,
 
     static const Error GENERAL_ERROR = Error::fromCode(GPG_ERR_GENERAL);
 
-    if (q->needsNoResponse(status)) {
-        return q->state();
-    }
-
     if (status == GPGME_STATUS_ERROR) {
         err = q->parseStatusError(args);
         return ERROR;

lang/cpp/src/gpgsetexpirytimeeditinteractor.cpp

@@ -94,10 +94,6 @@ unsigned int GpgSetExpiryTimeEditInteractor::nextState(unsigned int status, cons
     static const Error GENERAL_ERROR  = Error::fromCode(GPG_ERR_GENERAL);
     static const Error INV_TIME_ERROR = Error::fromCode(GPG_ERR_INV_TIME);
 
-    if (needsNoResponse(status)) {
-        return state();
-    }
-
     using namespace GpgSetExpiryTimeEditInteractor_Private;
 
     switch (state()) {

lang/cpp/src/gpgsetownertrusteditinteractor.cpp

@@ -98,10 +98,6 @@ unsigned int GpgSetOwnerTrustEditInteractor::nextState(unsigned int status, cons
     static const Error GENERAL_ERROR = Error::fromCode(GPG_ERR_GENERAL);
     //static const Error INV_TIME_ERROR = Error::fromCode( GPG_ERR_INV_TIME );
 
-    if (needsNoResponse(status)) {
-        return state();
-    }
-
     using namespace GpgSetOwnerTrustEditInteractor_Private;
 
     switch (state()) {

lang/cpp/src/gpgsignkeyeditinteractor.cpp

@@ -304,9 +304,6 @@ unsigned int GpgSignKeyEditInteractor::nextState(unsigned int status, const char
     static const Error GENERAL_ERROR = Error::fromCode(GPG_ERR_GENERAL);
     //static const Error INV_TIME_ERROR = Error::fromCode( GPG_ERR_INV_TIME );
     static const TransitionMap table(makeTable());
-    if (needsNoResponse(status)) {
-        return state();
-    }
 
     using namespace GpgSignKeyEditInteractor_Private;