pass through messenger to certify service from ViewKeyActivity

the idea here is to handle progress and result of the CertifyActivity
directly in ViewKeyActivity by passing a messenger through to it. this
allows smoother transition from an uncertified to certified state.

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyFingerprintActivity.java

@@ -17,14 +17,12 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.view.View;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.util.Log;
 
 public class CertifyFingerprintActivity extends BaseActivity {
@@ -79,14 +77,4 @@ public class CertifyFingerprintActivity extends BaseActivity {
         getSupportFragmentManager().executePendingTransactions();
     }
 
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        // if a result has been returned, display a notify
-        if (data != null && data.hasExtra(OperationResult.EXTRA_RESULT)) {
-            setResult(RESULT_OK, data);
-            finish();
-        } else {
-            super.onActivityResult(requestCode, resultCode, data);
-        }
-    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyFingerprintFragment.java

@@ -41,6 +41,8 @@ import org.sufficientlysecure.keychain.util.Log;
 public class CertifyFingerprintFragment extends LoaderFragment implements
         LoaderManager.LoaderCallbacks<Cursor> {
 
+    static final int REQUEST_CERTIFY = 1;
+
     public static final String ARG_DATA_URI = "uri";
 
     private TextView mFingerprint;
@@ -177,8 +179,20 @@ public class CertifyFingerprintFragment extends LoaderFragment implements
             Log.e(Constants.TAG, "key not found!", e);
         }
         Intent certifyIntent = new Intent(getActivity(), CertifyKeyActivity.class);
+        certifyIntent.putExtras(getActivity().getIntent());
         certifyIntent.putExtra(CertifyKeyActivity.EXTRA_KEY_IDS, new long[]{keyId});
-        startActivityForResult(certifyIntent, 0);
+        startActivityForResult(certifyIntent, REQUEST_CERTIFY);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        // always just pass this one through
+        if (requestCode == REQUEST_CERTIFY) {
+            getActivity().setResult(resultCode, data);
+            getActivity().finish();
+            return;
+        }
+        super.onActivityResult(requestCode, resultCode, data);
     }
 
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyFragment.java

@@ -31,6 +31,7 @@ import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.Parcel;
+import android.os.Parcelable;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
@@ -94,6 +95,7 @@ public class CertifyKeyFragment extends LoaderFragment
     private static final int INDEX_IS_REVOKED = 4;
 
     private MultiUserIdsAdapter mUserIdsAdapter;
+    private Messenger mPassthroughMessenger;
 
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
@@ -109,6 +111,9 @@ public class CertifyKeyFragment extends LoaderFragment
             return;
         }
 
+        mPassthroughMessenger = getActivity().getIntent().getParcelableExtra(
+                KeychainIntentService.EXTRA_MESSENGER);
+
         // preselect certify key id if given
         long certifyKeyId = getActivity().getIntent().getLongExtra(CertifyKeyActivity.EXTRA_CERTIFY_KEY_ID, Constants.key.none);
         if (certifyKeyId != Constants.key.none) {
@@ -332,7 +337,6 @@ public class CertifyKeyFragment extends LoaderFragment
         }
     }
 
-
     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         switch (requestCode) {
@@ -362,23 +366,28 @@ public class CertifyKeyFragment extends LoaderFragment
             return;
         }
 
-        // Send all information needed to service to sign key in other thread
-        Intent intent = new Intent(getActivity(), KeychainIntentService.class);
-
-        intent.setAction(KeychainIntentService.ACTION_CERTIFY_KEYRING);
-
+        Bundle data = new Bundle();
+        {
             // fill values for this action
             CertifyActionsParcel parcel = new CertifyActionsParcel(mSignMasterKeyId);
             parcel.mCertifyActions.addAll(certifyActions);
 
-        Bundle data = new Bundle();
             data.putParcelable(KeychainIntentService.CERTIFY_PARCEL, parcel);
             if (mUploadKeyCheckbox.isChecked()) {
                 String keyserver = Preferences.getPreferences(getActivity()).getPreferredKeyserver();
                 data.putString(KeychainIntentService.UPLOAD_KEY_SERVER, keyserver);
             }
+        }
+
+        // Send all information needed to service to sign key in other thread
+        Intent intent = new Intent(getActivity(), KeychainIntentService.class);
+        intent.setAction(KeychainIntentService.ACTION_CERTIFY_KEYRING);
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
+        if (mPassthroughMessenger != null) {
+            intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, mPassthroughMessenger);
+        } else {
+
             // Message is received after signing is done in KeychainIntentService
             KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(),
                     getString(R.string.progress_certifying), ProgressDialog.STYLE_SPINNER, true) {
@@ -404,9 +413,16 @@ public class CertifyKeyFragment extends LoaderFragment
 
             // show progress dialog
             saveHandler.showProgressDialog(getActivity());
+        }
 
         // start service with intent
         getActivity().startService(intent);
+
+        if (mPassthroughMessenger != null) {
+            getActivity().setResult(Activity.RESULT_OK);
+            getActivity().finish();
+        }
+
     }
 
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java

@@ -21,11 +21,11 @@ package org.sufficientlysecure.keychain.ui;
 import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
 import android.annotation.TargetApi;
+import android.app.Activity;
 import android.app.ActivityOptions;
 import android.content.Intent;
 import android.database.Cursor;
 import android.graphics.Bitmap;
-import android.graphics.Color;
 import android.net.Uri;
 import android.nfc.NdefMessage;
 import android.nfc.NdefRecord;
@@ -62,6 +62,7 @@ import com.getbase.floatingactionbutton.FloatingActionButton;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
+import org.sufficientlysecure.keychain.operations.results.CertifyResult;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.KeyRing;
@@ -385,6 +386,25 @@ public class ViewKeyActivity extends BaseActivity implements
     private void certifyFingeprint(Uri dataUri) {
         Intent intent = new Intent(this, CertifyFingerprintActivity.class);
         intent.setData(dataUri);
+
+        // Message is received after signing is done in KeychainIntentService
+        KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this) {
+            public void handleMessage(Message message) {
+                // handle messages by standard KeychainIntentServiceHandler first
+                super.handleMessage(message);
+
+                if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
+                    Bundle data = message.getData();
+                    CertifyResult result = data.getParcelable(CertifyResult.EXTRA_RESULT);
+
+                    result.createNotify(ViewKeyActivity.this).show();
+                }
+            }
+        };
+        // Create a new Messenger for the communication back
+        Messenger messenger = new Messenger(saveHandler);
+        intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
+
         startActivityForResult(intent, 0);
     }