Java tutorial
/* * Copyright (C) 2013-2014 Dominik Schrmann <dominik@dominikschuermann.de> * Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.sufficientlysecure.keychain.ui; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.database.MatrixCursor; import android.graphics.PorterDuff; import android.net.Uri; import android.os.Bundle; import android.os.Parcel; import android.support.v4.app.LoaderManager; import android.support.v4.content.CursorLoader; import android.support.v4.content.Loader; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.CheckBox; import android.widget.ImageView; import android.widget.ListView; import org.sufficientlysecure.keychain.Constants; import org.sufficientlysecure.keychain.R; import org.sufficientlysecure.keychain.operations.results.CertifyResult; import org.sufficientlysecure.keychain.operations.results.OperationResult; import org.sufficientlysecure.keychain.pgp.KeyRing; import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException; import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing; import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets; import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables; import org.sufficientlysecure.keychain.provider.ProviderHelper; import org.sufficientlysecure.keychain.service.CertifyActionsParcel; import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction; import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; import org.sufficientlysecure.keychain.ui.adapter.MultiUserIdsAdapter; import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment; import org.sufficientlysecure.keychain.ui.util.Notify; import org.sufficientlysecure.keychain.ui.util.FormattingUtils; import org.sufficientlysecure.keychain.ui.widget.CertifyKeySpinner; import org.sufficientlysecure.keychain.util.Log; import org.sufficientlysecure.keychain.util.Preferences; import java.util.ArrayList; import java.util.Date; public class CertifyKeyFragment extends CachingCryptoOperationFragment<CertifyActionsParcel, CertifyResult> { private CheckBox mUploadKeyCheckbox; private CertifyKeySpinner mCertifyKeySpinner; private MultiUserIdsFragment mMultiUserIdsFragment; @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); if (savedInstanceState == null) { // preselect certify key id if given long certifyKeyId = getActivity().getIntent().getLongExtra(CertifyKeyActivity.EXTRA_CERTIFY_KEY_ID, Constants.key.none); if (certifyKeyId != Constants.key.none) { try { CachedPublicKeyRing key = (new ProviderHelper(getActivity())) .getCachedPublicKeyRing(certifyKeyId); if (key.canCertify()) { mCertifyKeySpinner.setPreSelectedKeyId(certifyKeyId); } } catch (PgpKeyNotFoundException e) { Log.e(Constants.TAG, "certify certify check failed", e); } } } OperationResult result = getActivity().getIntent().getParcelableExtra(CertifyKeyActivity.EXTRA_RESULT); if (result != null) { // display result from import result.createNotify(getActivity()).show(); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.certify_key_fragment, null); mCertifyKeySpinner = (CertifyKeySpinner) view.findViewById(R.id.certify_key_spinner); mUploadKeyCheckbox = (CheckBox) view.findViewById(R.id.sign_key_upload_checkbox); mMultiUserIdsFragment = (MultiUserIdsFragment) getChildFragmentManager() .findFragmentById(R.id.multi_user_ids_fragment); // make certify image gray, like action icons ImageView vActionCertifyImage = (ImageView) view.findViewById(R.id.certify_key_action_certify_image); vActionCertifyImage.setColorFilter( FormattingUtils.getColorFromAttr(getActivity(), R.attr.colorTertiaryText), PorterDuff.Mode.SRC_IN); View vCertifyButton = view.findViewById(R.id.certify_key_certify_button); vCertifyButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { long selectedKeyId = mCertifyKeySpinner.getSelectedKeyId(); if (selectedKeyId == Constants.key.none) { Notify.create(getActivity(), getString(R.string.select_key_to_certify), Notify.Style.ERROR) .show(); } else { cryptoOperation(new CryptoInputParcel(new Date())); } } }); // If this is a debug build, don't upload by default if (Constants.DEBUG) { mUploadKeyCheckbox.setChecked(false); } return view; } @Override public CertifyActionsParcel createOperationInput() { // Bail out if there is not at least one user id selected ArrayList<CertifyAction> certifyActions = mMultiUserIdsFragment.getSelectedCertifyActions(); if (certifyActions.isEmpty()) { Notify.create(getActivity(), "No identities selected!", Notify.Style.ERROR).show(); return null; } long selectedKeyId = mCertifyKeySpinner.getSelectedKeyId(); // fill values for this action CertifyActionsParcel actionsParcel = new CertifyActionsParcel(selectedKeyId); actionsParcel.mCertifyActions.addAll(certifyActions); if (mUploadKeyCheckbox.isChecked()) { actionsParcel.keyServerUri = Preferences.getPreferences(getActivity()).getPreferredKeyserver(); } // cached for next cryptoOperation loop cacheActionsParcel(actionsParcel); return actionsParcel; } @Override public void onQueuedOperationSuccess(CertifyResult result) { // protected by Queueing*Fragment Activity activity = getActivity(); Intent intent = new Intent(); intent.putExtra(CertifyResult.EXTRA_RESULT, result); activity.setResult(Activity.RESULT_OK, intent); activity.finish(); } }