137 lines
4.7 KiB
Java
137 lines
4.7 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui.widget;
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import android.content.Context;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.annotation.StringRes;
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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.util.AttributeSet;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.KeychainDatabase;
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import org.sufficientlysecure.keychain.ui.adapter.KeyAdapter;
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public class CertifyKeySpinner extends KeySpinner {
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private long mHiddenMasterKeyId = Constants.key.none;
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private boolean mIsSingle;
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public CertifyKeySpinner(Context context) {
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super(context);
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}
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public CertifyKeySpinner(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public CertifyKeySpinner(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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}
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public void setHiddenMasterKeyId(long hiddenMasterKeyId) {
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this.mHiddenMasterKeyId = hiddenMasterKeyId;
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reload();
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}
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@Override
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public Loader<Cursor> onCreateLoader(int loaderId, Bundle data) {
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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 = KeychainContract.KeyRings.buildUnifiedKeyRingsUri();
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String[] projection = KeyAdapter.getProjectionWith(new String[] {
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KeychainContract.KeyRings.HAS_CERTIFY_SECRET,
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});
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String where = KeychainContract.KeyRings.HAS_ANY_SECRET + " = 1 AND "
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+ KeychainDatabase.Tables.KEYS + "." + KeychainContract.KeyRings.MASTER_KEY_ID
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+ " != " + mHiddenMasterKeyId;
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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(getContext(), baseUri, projection, where, null, null);
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}
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private int mIndexHasCertify;
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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super.onLoadFinished(loader, data);
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if (loader.getId() == LOADER_ID) {
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mIndexHasCertify = data.getColumnIndex(KeychainContract.KeyRings.HAS_CERTIFY_SECRET);
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// If:
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// - no key has been pre-selected (e.g. by SageSlinger)
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// - there are actually keys (not just "none" entry)
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// Then:
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// - select key that is capable of certifying, but only if there is only one key capable of it
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if (mPreSelectedKeyId == Constants.key.none && mAdapter.getCount() > 1) {
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// preselect if key can certify
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int selection = -1;
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while (data.moveToNext()) {
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if (!data.isNull(mIndexHasCertify)) {
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if (selection == -1) {
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selection = data.getPosition() + 1;
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mIsSingle = true;
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} else {
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// if selection is already set, we have more than one certify key!
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// get back to "none"!
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mIsSingle = false;
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selection = 0;
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}
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}
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}
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setSelection(selection);
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}
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}
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}
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public boolean isSingleEntry() {
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return mIsSingle && getSelectedItemPosition() != 0;
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}
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@Override
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boolean isItemEnabled(Cursor cursor) {
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if (cursor.getInt(KeyAdapter.INDEX_IS_REVOKED) != 0) {
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return false;
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}
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if (cursor.getInt(KeyAdapter.INDEX_IS_EXPIRED) != 0) {
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return false;
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}
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if (cursor.isNull(mIndexHasCertify)) {
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return false;
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}
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// valid key
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return true;
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}
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@Override
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public @StringRes int getNoneString() {
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return R.string.choice_select_cert;
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}
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}
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