326 lines
12 KiB
Java
326 lines
12 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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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;
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import android.content.Context;
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import android.content.Intent;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.v4.app.LoaderManager;
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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.widget.CursorAdapter;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.TextView;
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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.pgp.KeyRing;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.pgp.WrappedSignature;
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import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
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import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
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import org.sufficientlysecure.keychain.util.Log;
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import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
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import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
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public class ViewKeyCertsFragment extends LoaderFragment
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implements LoaderManager.LoaderCallbacks<Cursor>, AdapterView.OnItemClickListener {
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// These are the rows that we will retrieve.
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static final String[] PROJECTION = new String[]{
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Certs._ID,
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Certs.MASTER_KEY_ID,
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Certs.VERIFIED,
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Certs.TYPE,
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Certs.RANK,
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Certs.KEY_ID_CERTIFIER,
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Certs.USER_ID,
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Certs.SIGNER_UID
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};
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// sort by our user id,
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static final String SORT_ORDER =
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Tables.CERTS + "." + Certs.RANK + " ASC, "
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+ Certs.VERIFIED + " DESC, "
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+ Certs.TYPE + " DESC, "
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+ Certs.SIGNER_UID + " ASC";
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public static final String ARG_DATA_URI = "data_uri";
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private StickyListHeadersListView mStickyList;
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private CertListAdapter mAdapter;
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private Uri mDataUri;
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// starting with 4 for this fragment
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private static final int LOADER_ID = 4;
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
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View root = super.onCreateView(inflater, superContainer, savedInstanceState);
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View view = inflater.inflate(R.layout.view_key_certs_fragment, getContainer());
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mStickyList = (StickyListHeadersListView) view.findViewById(R.id.list);
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return root;
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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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if (!getArguments().containsKey(ARG_DATA_URI)) {
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Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
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getActivity().finish();
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return;
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}
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Uri uri = getArguments().getParcelable(ARG_DATA_URI);
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mDataUri = Certs.buildCertsUri(uri);
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mStickyList.setAreHeadersSticky(true);
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mStickyList.setDrawingListUnderStickyHeader(false);
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mStickyList.setFastScrollEnabled(true);
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mStickyList.setOnItemClickListener(this);
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
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mStickyList.setFastScrollAlwaysVisible(true);
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}
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mStickyList.setEmptyView(getActivity().findViewById(R.id.empty));
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// Create an empty adapter we will use to display the loaded data.
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mAdapter = new CertListAdapter(getActivity(), null);
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mStickyList.setAdapter(mAdapter);
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getLoaderManager().initLoader(LOADER_ID, null, this);
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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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setContentShown(false);
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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(), mDataUri, PROJECTION, null, null, SORT_ORDER);
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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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mStickyList.setAdapter(mAdapter);
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setContentShown(true);
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}
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/**
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* On click on item, start key view activity
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*/
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@Override
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public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
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if (view.getTag(R.id.tag_mki) != null) {
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long masterKeyId = (Long) view.getTag(R.id.tag_mki);
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long rank = (Long) view.getTag(R.id.tag_rank);
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long certifierId = (Long) view.getTag(R.id.tag_certifierId);
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Intent viewIntent = new Intent(getActivity(), ViewCertActivity.class);
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viewIntent.setData(Certs.buildCertsSpecificUri(
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masterKeyId, rank, certifierId));
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startActivity(viewIntent);
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}
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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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* Implements StickyListHeadersAdapter from library
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*/
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private class CertListAdapter extends CursorAdapter implements StickyListHeadersAdapter {
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private LayoutInflater mInflater;
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private int mIndexMasterKeyId, mIndexUserId, mIndexRank;
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private int mIndexSignerKeyId, mIndexSignerUserId;
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private int mIndexVerified, mIndexType;
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public CertListAdapter(Context context, Cursor c) {
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super(context, c, 0);
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mInflater = LayoutInflater.from(context);
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initIndex(c);
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}
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@Override
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public Cursor swapCursor(Cursor newCursor) {
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initIndex(newCursor);
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return super.swapCursor(newCursor);
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}
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/**
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* Get column indexes for performance reasons just once in constructor and swapCursor. For a
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* performance comparison see http://stackoverflow.com/a/17999582
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*
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* @param cursor
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*/
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private void initIndex(Cursor cursor) {
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if (cursor != null) {
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mIndexMasterKeyId = cursor.getColumnIndexOrThrow(Certs.MASTER_KEY_ID);
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mIndexUserId = cursor.getColumnIndexOrThrow(Certs.USER_ID);
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mIndexRank = cursor.getColumnIndexOrThrow(Certs.RANK);
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mIndexType = cursor.getColumnIndexOrThrow(Certs.TYPE);
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mIndexVerified = cursor.getColumnIndexOrThrow(Certs.VERIFIED);
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mIndexSignerKeyId = cursor.getColumnIndexOrThrow(Certs.KEY_ID_CERTIFIER);
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mIndexSignerUserId = cursor.getColumnIndexOrThrow(Certs.SIGNER_UID);
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}
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}
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/**
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* Bind cursor data to the item list view
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* <p/>
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* NOTE: CursorAdapter already implements the ViewHolder pattern in its getView() method.
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* Thus no ViewHolder is required here.
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*/
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@Override
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public void bindView(View view, Context context, Cursor cursor) {
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// set name and stuff, common to both key types
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TextView wSignerKeyId = (TextView) view.findViewById(R.id.signerKeyId);
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TextView wSignerName = (TextView) view.findViewById(R.id.signerName);
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TextView wSignStatus = (TextView) view.findViewById(R.id.signStatus);
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String signerKeyId = PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexSignerKeyId));
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String[] userId = KeyRing.splitUserId(cursor.getString(mIndexSignerUserId));
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if (userId[0] != null) {
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wSignerName.setText(userId[0]);
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} else {
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wSignerName.setText(R.string.user_id_no_name);
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}
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wSignerKeyId.setText(signerKeyId);
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switch (cursor.getInt(mIndexType)) {
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case WrappedSignature.DEFAULT_CERTIFICATION: // 0x10
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wSignStatus.setText(R.string.cert_default);
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break;
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case WrappedSignature.NO_CERTIFICATION: // 0x11
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wSignStatus.setText(R.string.cert_none);
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break;
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case WrappedSignature.CASUAL_CERTIFICATION: // 0x12
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wSignStatus.setText(R.string.cert_casual);
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break;
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case WrappedSignature.POSITIVE_CERTIFICATION: // 0x13
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wSignStatus.setText(R.string.cert_positive);
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break;
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case WrappedSignature.CERTIFICATION_REVOCATION: // 0x30
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wSignStatus.setText(R.string.cert_revoke);
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break;
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}
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view.setTag(R.id.tag_mki, cursor.getLong(mIndexMasterKeyId));
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view.setTag(R.id.tag_rank, cursor.getLong(mIndexRank));
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view.setTag(R.id.tag_certifierId, cursor.getLong(mIndexSignerKeyId));
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}
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@Override
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public View newView(Context context, Cursor cursor, ViewGroup parent) {
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return mInflater.inflate(R.layout.view_key_certs_item, parent, false);
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}
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/**
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* Creates a new header view and binds the section headers to it. It uses the ViewHolder
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* pattern. Most functionality is similar to getView() from Android's CursorAdapter.
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* <p/>
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* NOTE: The variables mDataValid and mCursor are available due to the super class
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* CursorAdapter.
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*/
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@Override
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public View getHeaderView(int position, View convertView, ViewGroup parent) {
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HeaderViewHolder holder;
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if (convertView == null) {
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holder = new HeaderViewHolder();
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convertView = mInflater.inflate(R.layout.view_key_certs_header, parent, false);
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holder.text = (TextView) convertView.findViewById(R.id.stickylist_header_text);
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holder.count = (TextView) convertView.findViewById(R.id.certs_num);
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convertView.setTag(holder);
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} else {
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holder = (HeaderViewHolder) convertView.getTag();
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}
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if (!mDataValid) {
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// no data available at this point
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Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
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return convertView;
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}
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if (!mCursor.moveToPosition(position)) {
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throw new IllegalStateException("couldn't move cursor to position " + position);
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}
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// set header text as first char in user id
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String userId = mCursor.getString(mIndexUserId);
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holder.text.setText(userId);
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holder.count.setVisibility(View.GONE);
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return convertView;
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}
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/**
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* Header IDs should be static, position=1 should always return the same Id that is.
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*/
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@Override
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public long getHeaderId(int position) {
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if (!mDataValid) {
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// no data available at this point
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Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
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return -1;
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}
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if (!mCursor.moveToPosition(position)) {
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throw new IllegalStateException("couldn't move cursor to position " + position);
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}
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// otherwise, return the first character of the name as ID
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return mCursor.getInt(mIndexRank);
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// sort by the first four characters (should be enough I guess?)
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// return ByteBuffer.wrap(userId.getBytes()).asLongBuffer().get(0);
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}
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class HeaderViewHolder {
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TextView text;
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TextView count;
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}
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}
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}
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