Retry decryption from message menu

src/main/java/eu/siacs/conversations/entities/Message.java

@@ -449,6 +449,7 @@ public class Message extends AbstractEntity {
 						this.getTransferable() == null &&
 						message.getTransferable() == null &&
 						message.getEncryption() != Message.ENCRYPTION_PGP &&
+						message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED &&
 						this.getType() == message.getType() &&
 						//this.getStatus() == message.getStatus() &&
 						isStatusMergeable(this.getStatus(), message.getStatus()) &&

src/main/java/eu/siacs/conversations/ui/ConversationFragment.java

@@ -523,6 +523,7 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 			menu.setHeaderTitle(R.string.message_options);
 			MenuItem copyText = menu.findItem(R.id.copy_text);
+			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
 			MenuItem correctMessage = menu.findItem(R.id.correct_message);
 			MenuItem shareWith = menu.findItem(R.id.share_with);
 			MenuItem sendAgain = menu.findItem(R.id.send_again);
@@ -535,6 +536,9 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 					&& m.treatAsDownloadable() != Message.Decision.MUST) {
 				copyText.setVisible(true);
 			}
+			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
+				retryDecryption.setVisible(true);
+			}
 			if (relevantForCorrection.getType() == Message.TYPE_TEXT
 					&& relevantForCorrection.isLastCorrectableMessage()) {
 				correctMessage.setVisible(true);
@@ -590,6 +594,9 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 			case R.id.cancel_transmission:
 				cancelTransmission(selectedMessage);
 				return true;
+			case R.id.retry_decryption:
+				retryDecryption(selectedMessage);
+				return true;
 			default:
 				return super.onContextItemSelected(item);
 		}
@@ -673,6 +680,12 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		}
 	}
 
+	private void retryDecryption(Message message) {
+		message.setEncryption(Message.ENCRYPTION_PGP);
+		activity.xmppConnectionService.updateConversationUi();
+		conversation.getAccount().getPgpDecryptionService().add(message);
+	}
+
 	protected void privateMessageWith(final Jid counterpart) {
 		this.mEditMessage.setText("");
 		this.conversation.setNextCounterpart(counterpart);

src/main/java/eu/siacs/conversations/utils/UIHelper.java

@@ -171,7 +171,9 @@ public class UIHelper {
 					return new Pair<>("",false);
 			}
 		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
-			return new Pair<>(context.getString(R.string.encrypted_message_received),true);
+			return new Pair<>(context.getString(R.string.pgp_message),true);
+		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
+			return new Pair<>(context.getString(R.string.decryption_failed), true);
 		} else if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
 			if (message.getStatus() == Message.STATUS_RECEIVED) {
 				return new Pair<>(context.getString(R.string.received_x_file,

src/main/res/menu/message_context.xml

@@ -5,6 +5,10 @@
         android:id="@+id/copy_text"
         android:title="@string/copy_text"
         android:visible="false"/>
+    <item
+        android:id="@+id/retry_decryption"
+        android:title="Retry decryption"
+        android:visible="false"/>
     <item
         android:id="@+id/correct_message"
         android:title="@string/correct_message"

src/main/res/values/strings.xml

@@ -97,7 +97,6 @@
 	<string name="contact_has_no_pgp_key">Conversations is unable to encrypt your messages because your contact is not announcing his or hers public key.\n\n<small>Please ask your contact to setup OpenPGP.</small></string>
 	<string name="no_pgp_keys">No OpenPGP Keys found</string>
 	<string name="contacts_have_no_pgp_keys">Conversations is unable to encrypt your messages because your contacts are not announcing their public key.\n\n<small>Please ask your contacts to setup OpenPGP.</small></string>
-	<string name="encrypted_message_received"><i>Encrypted message received. Touch to decrypt.</i></string>
 	<string name="pref_general">General</string>
 	<string name="pref_xmpp_resource">XMPP resource</string>
 	<string name="pref_xmpp_resource_summary">The name this client identifies itself with</string>