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