prevent cancel dring consolidate, move logic into progressable

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/Progressable.java

@@ -23,4 +23,6 @@ public interface Progressable {
     void setProgress(int resourceId, int current, int total);
 
     void setProgress(int current, int total);
+
+    void setPreventCancel();
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java

@@ -938,6 +938,9 @@ public class ProviderHelper {
 
         progress.setProgress(R.string.progress_con_saving, 0, 100);
 
+        // The consolidate operation can never be cancelled!
+        progress.setPreventCancel();
+
         try {
 
             log.add(LogType.MSG_CON_SAVE_SECRET, indent);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java

@@ -472,8 +472,7 @@ public class KeychainIntentService extends IntentService implements Progressable
 
                 // Special: consolidate on secret key import (cannot be cancelled!)
                 if (result.mSecret > 0) {
-                    // cannot cancel from here on out!
-                    sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_PREVENT_CANCEL);
+                    // TODO move this into the import operation
                     providerHelper.consolidateDatabaseStep1(this);
                 }
 
@@ -676,6 +675,11 @@ public class KeychainIntentService extends IntentService implements Progressable
         setProgress(null, progress, max);
     }
 
+    @Override
+    public void setPreventCancel() {
+        sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_PREVENT_CANCEL);
+    }
+
     private InputData createDecryptInputData(Bundle data) throws IOException, PgpGeneralException {
         return createCryptInputData(data, DECRYPT_CIPHERTEXT_BYTES);
     }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/ProgressScaler.java

@@ -60,4 +60,10 @@ public class ProgressScaler implements Progressable {
         }
     }
 
+    @Override
+    public void setPreventCancel() {
+        if (mWrapped != null) {
+            mWrapped.setPreventCancel();
+        }
+    }
 }