diff options
Diffstat (limited to 'OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java')
-rw-r--r-- | OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java new file mode 100644 index 000000000..8b3e75d05 --- /dev/null +++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java @@ -0,0 +1,232 @@ +/* + * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de> + * Copyright (C) 2010 Thialfihar <thi@thialfihar.org> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.sufficientlysecure.keychain.ui; + +import java.util.Date; +import java.util.Vector; + +import org.sufficientlysecure.keychain.Id; +import org.sufficientlysecure.keychain.compatibility.ListFragmentWorkaround; +import org.sufficientlysecure.keychain.provider.KeychainDatabase; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; +import org.sufficientlysecure.keychain.provider.KeychainContract.Keys; +import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds; +import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables; +import org.sufficientlysecure.keychain.ui.widget.SelectKeyCursorAdapter; +import org.sufficientlysecure.keychain.R; + +import android.database.Cursor; +import android.database.DatabaseUtils; +import android.net.Uri; +import android.os.Bundle; +import android.support.v4.content.CursorLoader; +import android.support.v4.content.Loader; +import android.support.v4.app.LoaderManager; +import android.widget.ListView; + +public class SelectPublicKeyFragment extends ListFragmentWorkaround implements + LoaderManager.LoaderCallbacks<Cursor> { + + private SelectPublicKeyActivity mActivity; + private SelectKeyCursorAdapter mAdapter; + private ListView mListView; + + private long mSelectedMasterKeyIds[]; + + /** + * Define Adapter and Loader on create of Activity + */ + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + mActivity = (SelectPublicKeyActivity) getSherlockActivity(); + mListView = getListView(); + + // get selected master key ids, which are given to activity by intent + mSelectedMasterKeyIds = mActivity.getSelectedMasterKeyIds(); + + mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); + + // Give some text to display if there is no data. In a real + // application this would come from a resource. + setEmptyText(getString(R.string.listEmpty)); + + mAdapter = new SelectKeyCursorAdapter(mActivity, mListView, null, Id.type.public_key); + + setListAdapter(mAdapter); + + // Start out with a progress indicator. + setListShown(false); + + // Prepare the loader. Either re-connect with an existing one, + // or start a new one. + getLoaderManager().initLoader(0, null, this); + } + + /** + * Selects items based on master key ids in list view + * + * @param masterKeyIds + */ + private void preselectMasterKeyIds(long[] masterKeyIds) { + if (masterKeyIds != null) { + for (int i = 0; i < mListView.getCount(); ++i) { + long keyId = mAdapter.getMasterKeyId(i); + for (int j = 0; j < masterKeyIds.length; ++j) { + if (keyId == masterKeyIds[j]) { + mListView.setItemChecked(i, true); + break; + } + } + } + } + } + + /** + * Returns all selected master key ids + * + * @return + */ + public long[] getSelectedMasterKeyIds() { + // mListView.getCheckedItemIds() would give the row ids of the KeyRings not the master key + // ids! + Vector<Long> vector = new Vector<Long>(); + for (int i = 0; i < mListView.getCount(); ++i) { + if (mListView.isItemChecked(i)) { + vector.add(mAdapter.getMasterKeyId(i)); + } + } + + // convert to long array + long[] selectedMasterKeyIds = new long[vector.size()]; + for (int i = 0; i < vector.size(); ++i) { + selectedMasterKeyIds[i] = vector.get(i); + } + + return selectedMasterKeyIds; + } + + /** + * Returns all selected user ids + * + * @return + */ + public String[] getSelectedUserIds() { + Vector<String> userIds = new Vector<String>(); + for (int i = 0; i < mListView.getCount(); ++i) { + if (mListView.isItemChecked(i)) { + userIds.add((String) mAdapter.getUserId(i)); + } + } + + // make empty array to not return null + String userIdArray[] = new String[0]; + return userIds.toArray(userIdArray); + } + + @Override + public Loader<Cursor> onCreateLoader(int id, Bundle args) { + // This is called when a new Loader needs to be created. This + // sample only has one Loader, so we don't care about the ID. + Uri baseUri = KeyRings.buildPublicKeyRingsUri(); + + // These are the rows that we will retrieve. + long now = new Date().getTime() / 1000; + String[] projection = new String[] { + KeyRings._ID, + KeyRings.MASTER_KEY_ID, + UserIds.USER_ID, + "(SELECT COUNT(available_keys." + Keys._ID + ") FROM " + Tables.KEYS + + " AS available_keys WHERE available_keys." + Keys.KEY_RING_ROW_ID + " = " + + KeychainDatabase.Tables.KEY_RINGS + "." + KeyRings._ID + + " AND available_keys." + Keys.IS_REVOKED + " = '0' AND available_keys." + + Keys.CAN_ENCRYPT + " = '1') AS " + + SelectKeyCursorAdapter.PROJECTION_ROW_AVAILABLE, + "(SELECT COUNT(valid_keys." + Keys._ID + ") FROM " + Tables.KEYS + + " AS valid_keys WHERE valid_keys." + Keys.KEY_RING_ROW_ID + " = " + + KeychainDatabase.Tables.KEY_RINGS + "." + KeyRings._ID + " AND valid_keys." + + Keys.IS_REVOKED + " = '0' AND valid_keys." + Keys.CAN_ENCRYPT + + " = '1' AND valid_keys." + Keys.CREATION + " <= '" + now + "' AND " + + "(valid_keys." + Keys.EXPIRY + " IS NULL OR valid_keys." + Keys.EXPIRY + + " >= '" + now + "')) AS " + SelectKeyCursorAdapter.PROJECTION_ROW_VALID, }; + + String inMasterKeyList = null; + if (mSelectedMasterKeyIds != null && mSelectedMasterKeyIds.length > 0) { + inMasterKeyList = KeyRings.MASTER_KEY_ID + " IN ("; + for (int i = 0; i < mSelectedMasterKeyIds.length; ++i) { + if (i != 0) { + inMasterKeyList += ", "; + } + inMasterKeyList += DatabaseUtils.sqlEscapeString("" + mSelectedMasterKeyIds[i]); + } + inMasterKeyList += ")"; + } + + // if (searchString != null && searchString.trim().length() > 0) { + // String[] chunks = searchString.trim().split(" +"); + // qb.appendWhere("(EXISTS (SELECT tmp." + UserIds._ID + " FROM " + UserIds.TABLE_NAME + // + " AS tmp WHERE " + "tmp." + UserIds.KEY_ID + " = " + Keys.TABLE_NAME + "." + // + Keys._ID); + // for (int i = 0; i < chunks.length; ++i) { + // qb.appendWhere(" AND tmp." + UserIds.USER_ID + " LIKE "); + // qb.appendWhereEscapeString("%" + chunks[i] + "%"); + // } + // qb.appendWhere("))"); + // + // if (inIdList != null) { + // qb.appendWhere(" OR (" + inIdList + ")"); + // } + // } + + String orderBy = UserIds.USER_ID + " ASC"; + if (inMasterKeyList != null) { + // sort by selected master keys + orderBy = inMasterKeyList + " DESC, " + orderBy; + } + + // Now create and return a CursorLoader that will take care of + // creating a Cursor for the data being displayed. + return new CursorLoader(getActivity(), baseUri, projection, null, null, orderBy); + } + + @Override + public void onLoadFinished(Loader<Cursor> loader, Cursor data) { + // Swap the new cursor in. (The framework will take care of closing the + // old cursor once we return.) + mAdapter.swapCursor(data); + + // The list should now be shown. + if (isResumed()) { + setListShown(true); + } else { + setListShownNoAnimation(true); + } + + // preselect given master keys + preselectMasterKeyIds(mSelectedMasterKeyIds); + } + + @Override + public void onLoaderReset(Loader<Cursor> loader) { + // This is called when the last Cursor provided to onLoadFinished() + // above is about to be closed. We need to make sure we are no + // longer using it. + mAdapter.swapCursor(null); + } +} |