open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/QueueingCryptoOperationFragment.java

94 lines
2.6 KiB
Java

package org.sufficientlysecure.keychain.ui.base;
import android.os.Bundle;
import android.os.Parcelable;
import org.sufficientlysecure.keychain.operations.results.OperationResult;
/** CryptoOperationFragment which calls crypto operation results only while
* attached to Activity.
*
* This subclass of CryptoOperationFragment substitutes the onCryptoOperation*
* methods for onQueuedOperation* ones, which are ensured to be called while
* the fragment is attached to an Activity, possibly delaying the call until
* the Fragment is re-attached.
*
* TODO merge this functionality into CryptoOperationFragment?
*
* @see CryptoOperationFragment
*/
public abstract class QueueingCryptoOperationFragment<T extends Parcelable, S extends OperationResult>
extends CryptoOperationFragment<T,S> {
public static final String ARG_QUEUED_RESULT = "queued_result";
private S mQueuedResult;
public QueueingCryptoOperationFragment() {
super();
}
public QueueingCryptoOperationFragment(Integer initialProgressMsg) {
super(initialProgressMsg);
}
@Override
public void onViewStateRestored(Bundle savedInstanceState) {
super.onViewStateRestored(savedInstanceState);
if (mQueuedResult != null) {
try {
if (mQueuedResult.success()) {
onQueuedOperationSuccess(mQueuedResult);
} else {
onQueuedOperationError(mQueuedResult);
}
} finally {
mQueuedResult = null;
}
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelable(ARG_QUEUED_RESULT, mQueuedResult);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null) {
mQueuedResult = savedInstanceState.getParcelable(ARG_QUEUED_RESULT);
}
}
public abstract void onQueuedOperationSuccess(S result);
public void onQueuedOperationError(S result) {
hideKeyboard();
result.createNotify(getActivity()).show();
}
@Override
final public void onCryptoOperationSuccess(S result) {
if (getActivity() == null) {
mQueuedResult = result;
return;
}
onQueuedOperationSuccess(result);
}
@Override
final public void onCryptoOperationError(S result) {
if (getActivity() == null) {
mQueuedResult = result;
return;
}
onQueuedOperationError(result);
}
}