126 lines
4.2 KiB
Java
126 lines
4.2 KiB
Java
/*
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* Copyright (C) 2014-2015 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.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.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.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.ListView;
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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.ui.adapter.SubkeysAdapter;
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import org.sufficientlysecure.keychain.util.Log;
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public class ViewKeyAdvSubkeysFragment extends LoaderFragment implements
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LoaderManager.LoaderCallbacks<Cursor> {
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public static final String ARG_DATA_URI = "data_uri";
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private ListView mSubkeysList;
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private SubkeysAdapter mSubkeysAdapter;
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private Uri mDataUriSubkeys;
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/**
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* Creates new instance of this fragment
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*/
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public static ViewKeyAdvSubkeysFragment newInstance(Uri dataUri) {
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ViewKeyAdvSubkeysFragment frag = new ViewKeyAdvSubkeysFragment();
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Bundle args = new Bundle();
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args.putParcelable(ARG_DATA_URI, dataUri);
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frag.setArguments(args);
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return frag;
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}
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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_adv_subkeys_fragment, getContainer());
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mSubkeysList = (ListView) view.findViewById(R.id.keys);
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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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Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
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if (dataUri == null) {
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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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loadData(dataUri);
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}
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private void loadData(Uri dataUri) {
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mDataUriSubkeys = KeychainContract.Keys.buildKeysUri(dataUri);
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// Create an empty adapter we will use to display the loaded data.
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mSubkeysAdapter = new SubkeysAdapter(getActivity(), null, 0);
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mSubkeysList.setAdapter(mSubkeysAdapter);
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// Prepare the loaders. Either re-connect with an existing ones,
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// or start new ones.
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getLoaderManager().initLoader(0, null, this);
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}
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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setContentShown(false);
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return new CursorLoader(getActivity(), mDataUriSubkeys,
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SubkeysAdapter.SUBKEYS_PROJECTION, null, null, null);
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}
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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// Avoid NullPointerExceptions, if we get an empty result set.
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if (data.getCount() == 0) {
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return;
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}
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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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mSubkeysAdapter.swapCursor(data);
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// TODO: maybe show not before both are loaded!
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setContentShown(true);
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}
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/**
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* This is called when the last Cursor provided to onLoadFinished() above is about to be closed.
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* We need to make sure we are no longer using it.
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*/
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public void onLoaderReset(Loader<Cursor> loader) {
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mSubkeysAdapter.swapCursor(null);
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}
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}
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