83 lines
3.2 KiB
Java
83 lines
3.2 KiB
Java
package org.sufficientlysecure.keychain.ui.token;
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import android.arch.lifecycle.LifecycleOwner;
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import android.arch.lifecycle.LiveData;
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import android.arch.lifecycle.ViewModel;
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import android.content.Context;
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import android.net.Uri;
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import org.sufficientlysecure.keychain.livedata.GenericLiveData;
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import org.sufficientlysecure.keychain.securitytoken.SecurityTokenInfo;
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import org.sufficientlysecure.keychain.ui.token.PublicKeyRetriever.KeyRetrievalResult;
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public class ManageSecurityTokenViewModel extends ViewModel {
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private static final long MIN_OPERATION_TIME_MILLIS = 700;
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SecurityTokenInfo tokenInfo;
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private GenericLiveData<KeyRetrievalResult> keyRetrievalLocal;
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private GenericLiveData<KeyRetrievalResult> keyRetrievalUri;
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private GenericLiveData<KeyRetrievalResult> keyRetrievalKeyserver;
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private GenericLiveData<KeyRetrievalResult> keyRetrievalContentUri;
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private PublicKeyRetriever publicKeyRetriever;
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void setTokenInfo(Context context, SecurityTokenInfo tokenInfo) {
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this.tokenInfo = tokenInfo;
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this.publicKeyRetriever = new PublicKeyRetriever(context, tokenInfo);
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}
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public LiveData<KeyRetrievalResult> getKeyRetrievalLocal(Context context) {
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if (keyRetrievalLocal == null) {
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keyRetrievalLocal = new GenericLiveData<>(context, publicKeyRetriever::retrieveLocal);
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keyRetrievalLocal.setMinLoadTime(MIN_OPERATION_TIME_MILLIS);
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}
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return keyRetrievalLocal;
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}
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public LiveData<KeyRetrievalResult> getKeyRetrievalUri(Context context) {
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if (keyRetrievalUri == null) {
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keyRetrievalUri = new GenericLiveData<>(context, publicKeyRetriever::retrieveUri);
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keyRetrievalUri.setMinLoadTime(MIN_OPERATION_TIME_MILLIS);
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}
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return keyRetrievalUri;
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}
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public LiveData<KeyRetrievalResult> getKeyRetrievalKeyserver(Context context) {
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if (keyRetrievalKeyserver == null) {
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keyRetrievalKeyserver = new GenericLiveData<>(context, publicKeyRetriever::retrieveKeyserver);
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keyRetrievalKeyserver.setMinLoadTime(MIN_OPERATION_TIME_MILLIS);
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}
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return keyRetrievalKeyserver;
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}
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public LiveData<KeyRetrievalResult> getKeyRetrievalContentUri(Context context, Uri uri) {
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if (keyRetrievalContentUri == null) {
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keyRetrievalContentUri = new GenericLiveData<>(context, () -> publicKeyRetriever.retrieveContentUri(uri));
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keyRetrievalContentUri.setMinLoadTime(MIN_OPERATION_TIME_MILLIS);
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}
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return keyRetrievalContentUri;
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}
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public void resetLiveData(LifecycleOwner lifecycleOwner) {
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if (keyRetrievalLocal != null) {
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keyRetrievalLocal.removeObservers(lifecycleOwner);
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keyRetrievalLocal = null;
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}
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if (keyRetrievalKeyserver != null) {
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keyRetrievalKeyserver.removeObservers(lifecycleOwner);
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keyRetrievalKeyserver = null;
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}
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if (keyRetrievalUri != null) {
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keyRetrievalUri.removeObservers(lifecycleOwner);
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keyRetrievalUri = null;
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}
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if (keyRetrievalContentUri != null) {
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keyRetrievalContentUri.removeObservers(lifecycleOwner);
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keyRetrievalContentUri = null;
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}
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}
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}
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