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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui.adapter;
import android.content.Context;
import android.database.Cursor;
import android.support.v4.widget.CursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.TextView;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
import java.util.ArrayList;
public class ViewKeyUserIdsAdapter extends CursorAdapter implements AdapterView.OnItemClickListener {
private LayoutInflater mInflater;
private int mIndexUserId, mIndexRank;
private int mVerifiedId, mIsRevoked, mIsPrimary;
private final ArrayList<Boolean> mCheckStates;
public static final String[] USER_IDS_PROJECTION = new String[] {
UserIds._ID, UserIds.USER_ID, UserIds.RANK,
UserIds.VERIFIED, UserIds.IS_PRIMARY, UserIds.IS_REVOKED
};
public ViewKeyUserIdsAdapter(Context context, Cursor c, int flags, boolean showCheckBoxes) {
super(context, c, flags);
mInflater = LayoutInflater.from(context);
mCheckStates = showCheckBoxes ? new ArrayList<Boolean>() : null;
initIndex(c);
}
public ViewKeyUserIdsAdapter(Context context, Cursor c, int flags) {
this(context, c, flags, false);
}
@Override
public Cursor swapCursor(Cursor newCursor) {
initIndex(newCursor);
if (mCheckStates != null) {
mCheckStates.clear();
if (newCursor != null) {
int count = newCursor.getCount();
mCheckStates.ensureCapacity(count);
// initialize to true (use case knowledge: we usually want to sign all uids)
for(int i = 0; i < count; i++) {
newCursor.moveToPosition(i);
int verified = newCursor.getInt(mVerifiedId);
mCheckStates.add(verified != Certs.VERIFIED_SECRET);
}
}
}
return super.swapCursor(newCursor);
}
/**
* Get column indexes for performance reasons just once in constructor and swapCursor. For a
* performance comparison see http://stackoverflow.com/a/17999582
*
* @param cursor
*/
private void initIndex(Cursor cursor) {
if (cursor != null) {
mIndexUserId = cursor.getColumnIndexOrThrow(UserIds.USER_ID);
mIndexRank = cursor.getColumnIndexOrThrow(UserIds.RANK);
mVerifiedId = cursor.getColumnIndexOrThrow(UserIds.VERIFIED);
mIsRevoked = cursor.getColumnIndexOrThrow(UserIds.IS_REVOKED);
mIsPrimary = cursor.getColumnIndexOrThrow(UserIds.IS_PRIMARY);
}
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
TextView vRank = (TextView) view.findViewById(R.id.rank);
TextView vUserId = (TextView) view.findViewById(R.id.userId);
TextView vAddress = (TextView) view.findViewById(R.id.address);
ImageView vVerified = (ImageView) view.findViewById(R.id.certified);
if(cursor.getInt(mIsPrimary) > 0) {
vRank.setText("+");
} else {
vRank.setText(Integer.toString(cursor.getInt(mIndexRank)));
}
String[] userId = PgpKeyHelper.splitUserId(cursor.getString(mIndexUserId));
if (userId[0] != null) {
vUserId.setText(userId[0]);
} else {
vUserId.setText(R.string.user_id_no_name);
}
vAddress.setText(userId[1]);
if(cursor.getInt(mIsRevoked) > 0) {
vRank.setText(" ");
vVerified.setImageResource(android.R.drawable.presence_away);
} else {
int verified = cursor.getInt(mVerifiedId);
// TODO introduce own resources for this :)
if(verified == Certs.VERIFIED_SECRET)
vVerified.setImageResource(android.R.drawable.presence_online);
else if(verified == Certs.VERIFIED_SELF)
vVerified.setImageResource(android.R.drawable.presence_invisible);
else
vVerified.setImageResource(android.R.drawable.presence_busy);
}
// don't care further if checkboxes aren't shown
if (mCheckStates == null) {
return;
}
final CheckBox vCheckBox = (CheckBox) view.findViewById(R.id.checkBox);
final int position = cursor.getPosition();
vCheckBox.setOnCheckedChangeListener(null);
vCheckBox.setChecked(mCheckStates.get(position));
vCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
mCheckStates.set(position, b);
}
});
vCheckBox.setClickable(false);
}
public void onItemClick(AdapterView<?> adapter, View view, int position, long id) {
CheckBox box = ((CheckBox) view.findViewById(R.id.checkBox));
if(box != null) {
box.toggle();
}
}
public ArrayList<String> getSelectedUserIds() {
ArrayList<String> result = new ArrayList<String>();
for (int i = 0; i < mCheckStates.size(); i++) {
if (mCheckStates.get(i)) {
mCursor.moveToPosition(i);
result.add(mCursor.getString(mIndexUserId));
}
}
return result;
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view = mInflater.inflate(R.layout.view_key_userids_item, null);
// only need to do this once ever, since mShowCheckBoxes is final
view.findViewById(R.id.checkBox).setVisibility(mCheckStates != null ? View.VISIBLE : View.GONE);
return view;
}
}
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