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/*
* 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.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.List;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListLoader;
import org.sufficientlysecure.keychain.util.InputData;
import org.sufficientlysecure.keychain.util.Log;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.view.View;
import android.widget.ListView;
import com.actionbarsherlock.app.SherlockListFragment;
public class ImportKeysListFragment extends SherlockListFragment implements
LoaderManager.LoaderCallbacks<List<ImportKeysListEntry>> {
private static final String ARG_FILENAME = "filename";
private static final String ARG_BYTES = "bytes";
private Activity mActivity;
private ImportKeysAdapter mAdapter;
private byte[] mKeyBytes;
private String mImportFilename;
public byte[] getKeyBytes() {
return mKeyBytes;
}
public String getImportFilename() {
return mImportFilename;
}
public List<ImportKeysListEntry> getData() {
return mAdapter.getData();
}
/**
* Creates new instance of this fragment
*/
public static ImportKeysListFragment newInstance(byte[] bytes, String filename) {
ImportKeysListFragment frag = new ImportKeysListFragment();
Bundle args = new Bundle();
args.putByteArray(ARG_BYTES, bytes);
args.putString(ARG_FILENAME, filename);
frag.setArguments(args);
return frag;
}
/**
* Define Adapter and Loader on create of Activity
*/
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mActivity = getActivity();
if (getArguments() != null) {
mImportFilename = getArguments().getString(ARG_FILENAME);
mKeyBytes = getArguments().getByteArray(ARG_BYTES);
}
// Give some text to display if there is no data. In a real
// application this would come from a resource.
setEmptyText(mActivity.getString(R.string.error_nothing_import));
// Create an empty adapter we will use to display the loaded data.
mAdapter = new ImportKeysAdapter(mActivity);
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.
// give arguments to onCreateLoader()
getLoaderManager().initLoader(0, null, this);
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
// Select checkbox!
// Update underlying data and notify adapter of change. The adapter will
// update the view automatically.
ImportKeysListEntry entry = mAdapter.getItem(position);
entry.setSelected(!entry.isSelected());
mAdapter.notifyDataSetChanged();
}
public void loadNew(byte[] importData, String importFilename) {
this.mKeyBytes = importData;
this.mImportFilename = importFilename;
getLoaderManager().restartLoader(0, null, this);
}
@Override
public Loader<List<ImportKeysListEntry>> onCreateLoader(int id, Bundle args) {
InputData inputData = getInputData(mKeyBytes, mImportFilename);
return new ImportKeysListLoader(mActivity, inputData);
}
private InputData getInputData(byte[] importBytes, String importFilename) {
InputData inputData = null;
if (importBytes != null) {
inputData = new InputData(new ByteArrayInputStream(importBytes), importBytes.length);
} else if (importFilename != null) {
try {
inputData = new InputData(new FileInputStream(importFilename),
importFilename.length());
} catch (FileNotFoundException e) {
Log.e(Constants.TAG, "Failed to init FileInputStream!", e);
}
}
return inputData;
}
@Override
public void onLoadFinished(Loader<List<ImportKeysListEntry>> loader,
List<ImportKeysListEntry> data) {
Log.d(Constants.TAG, "data: " + data);
// swap in the real data!
mAdapter.setData(data);
mAdapter.notifyDataSetChanged();
setListAdapter(mAdapter);
// The list should now be shown.
if (isResumed()) {
setListShown(true);
} else {
setListShownNoAnimation(true);
}
}
@Override
public void onLoaderReset(Loader<List<ImportKeysListEntry>> loader) {
// Clear the data in the adapter.
mAdapter.clear();
}
}
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