set svn:eol-style to LF for all code/resource files

1 files changed, 762 insertions, 762 deletions

diff --git a/src/org/thialfihar/android/apg/KeyListActivity.java b/src/org/thialfihar/android/apg/KeyListActivity.java
index 26c744f33..fc074e75d 100644
--- a/src/org/thialfihar/android/apg/KeyListActivity.java
+++ b/src/org/thialfihar/android/apg/KeyListActivity.java
@@ -1,762 +1,762 @@
-/*

- * 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.thialfihar.android.apg;

-

-import java.io.ByteArrayInputStream;

-import java.io.File;

-import java.io.FileInputStream;

-import java.io.FileNotFoundException;

-import java.io.FileOutputStream;

-import java.io.IOException;

-import java.io.InputStream;

-import java.io.OutputStream;

-import java.util.Vector;

-

-import org.bouncycastle2.openpgp.PGPException;

-import org.bouncycastle2.openpgp.PGPPublicKeyRing;

-import org.bouncycastle2.openpgp.PGPSecretKeyRing;

-import org.thialfihar.android.apg.provider.KeyRings;

-import org.thialfihar.android.apg.provider.Keys;

-import org.thialfihar.android.apg.provider.UserIds;

-

-import android.app.AlertDialog;

-import android.app.Dialog;

-import android.app.SearchManager;

-import android.content.Context;

-import android.content.DialogInterface;

-import android.content.Intent;

-import android.database.Cursor;

-import android.database.sqlite.SQLiteDatabase;

-import android.database.sqlite.SQLiteQueryBuilder;

-import android.net.Uri;

-import android.os.Bundle;

-import android.os.Message;

-import android.view.LayoutInflater;

-import android.view.MenuItem;

-import android.view.View;

-import android.view.View.OnClickListener;

-import android.view.ViewGroup;

-import android.widget.BaseExpandableListAdapter;

-import android.widget.Button;

-import android.widget.ExpandableListView;

-import android.widget.ExpandableListView.ExpandableListContextMenuInfo;

-import android.widget.ImageView;

-import android.widget.TextView;

-import android.widget.Toast;

-

-public class KeyListActivity extends BaseActivity {

-    protected ExpandableListView mList;

-    protected KeyListAdapter mListAdapter;

-    protected View mFilterLayout;

-    protected Button mClearFilterButton;

-    protected TextView mFilterInfo;

-

-    protected int mSelectedItem = -1;

-    protected int mTask = 0;

-

-    protected String mImportFilename = Constants.path.app_dir + "/";

-    protected String mExportFilename = Constants.path.app_dir + "/";

-

-    protected String mImportData;

-

-    protected int mKeyType = Id.type.public_key;

-

-    @Override

-    public void onCreate(Bundle savedInstanceState) {

-        super.onCreate(savedInstanceState);

-        setContentView(R.layout.key_list);

-

-        setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);

-

-        mList = (ExpandableListView) findViewById(R.id.list);

-        registerForContextMenu(mList);

-

-        mFilterLayout = (View) findViewById(R.id.layout_filter);

-        mFilterInfo = (TextView) mFilterLayout.findViewById(R.id.filterInfo);

-        mClearFilterButton = (Button) mFilterLayout.findViewById(R.id.btn_clear);

-

-        mClearFilterButton.setOnClickListener(new OnClickListener() {

-            @Override

-            public void onClick(View v) {

-                handleIntent(new Intent());

-            }

-        });

-

-        handleIntent(getIntent());

-

-        Intent intent = getIntent();

-        if (Apg.Intent.IMPORT.equals(intent.getAction())) {

-            if ("file".equals(intent.getScheme()) && intent.getDataString() != null) {

-                mImportFilename = intent.getDataString().replace("file://", "");

-            } else {

-                mImportData = intent.getStringExtra(Apg.EXTRA_TEXT);

-            }

-            importKeys();

-        }

-    }

-

-    @Override

-    protected void onNewIntent(Intent intent) {

-        super.onNewIntent(intent);

-        handleIntent(intent);

-    }

-

-    private void handleIntent(Intent intent) {

-        String searchString = null;

-        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {

-            searchString = intent.getStringExtra(SearchManager.QUERY);

-            if (searchString != null && searchString.trim().length() == 0) {

-                searchString = null;

-            }

-        }

-

-        if (searchString == null) {

-            mFilterLayout.setVisibility(View.GONE);

-        } else {

-            mFilterLayout.setVisibility(View.VISIBLE);

-            mFilterInfo.setText(getString(R.string.filterInfo, searchString));

-        }

-

-        if (mListAdapter != null) {

-            mListAdapter.cleanup();

-        }

-        mListAdapter = new KeyListAdapter(this, searchString);

-        mList.setAdapter(mListAdapter);

-    }

-

-    @Override

-    public boolean onOptionsItemSelected(MenuItem item) {

-        switch (item.getItemId()) {

-            case Id.menu.option.import_keys: {

-                showDialog(Id.dialog.import_keys);

-                return true;

-            }

-

-            case Id.menu.option.export_keys: {

-                showDialog(Id.dialog.export_keys);

-                return true;

-            }

-

-            default: {

-                return super.onOptionsItemSelected(item);

-            }

-        }

-    }

-

-    @Override

-    public boolean onContextItemSelected(MenuItem menuItem) {

-        ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) menuItem.getMenuInfo();

-        int type = ExpandableListView.getPackedPositionType(info.packedPosition);

-        int groupPosition = ExpandableListView.getPackedPositionGroup(info.packedPosition);

-

-        if (type != ExpandableListView.PACKED_POSITION_TYPE_GROUP) {

-            return super.onContextItemSelected(menuItem);

-        }

-

-        switch (menuItem.getItemId()) {

-            case Id.menu.export: {

-                mSelectedItem = groupPosition;

-                showDialog(Id.dialog.export_key);

-                return true;

-            }

-

-            case Id.menu.delete: {

-                mSelectedItem = groupPosition;

-                showDialog(Id.dialog.delete_key);

-                return true;

-            }

-

-            default: {

-                return super.onContextItemSelected(menuItem);

-            }

-        }

-    }

-

-    @Override

-    protected Dialog onCreateDialog(int id) {

-        boolean singleKeyExport = false;

-

-        switch (id) {

-            case Id.dialog.delete_key: {

-                final int keyRingId = mListAdapter.getKeyRingId(mSelectedItem);

-                mSelectedItem = -1;

-                // TODO: better way to do this?

-                String userId = "<unknown>";

-                Object keyRing = Apg.getKeyRing(keyRingId);

-                if (keyRing != null) {

-                    if (keyRing instanceof PGPPublicKeyRing) {

-                        userId = Apg.getMainUserIdSafe(this, Apg.getMasterKey((PGPPublicKeyRing) keyRing));

-                    } else {

-                        userId = Apg.getMainUserIdSafe(this, Apg.getMasterKey((PGPSecretKeyRing) keyRing));

-                    }

-                }

-

-                AlertDialog.Builder builder = new AlertDialog.Builder(this);

-                builder.setTitle(R.string.warning);

-                builder.setMessage(getString(mKeyType == Id.type.public_key ?

-                                                 R.string.keyDeletionConfirmation :

-                                                 R.string.secretKeyDeletionConfirmation, userId));

-                builder.setIcon(android.R.drawable.ic_dialog_alert);

-                builder.setPositiveButton(R.string.btn_delete,

-                                          new DialogInterface.OnClickListener() {

-                                              public void onClick(DialogInterface dialog, int id) {

-                                                  deleteKey(keyRingId);

-                                                  removeDialog(Id.dialog.delete_key);

-                                              }

-                                          });

-                builder.setNegativeButton(android.R.string.cancel,

-                                          new DialogInterface.OnClickListener() {

-                                              public void onClick(DialogInterface dialog, int id) {

-                                                  removeDialog(Id.dialog.delete_key);

-                                              }

-                                          });

-                return builder.create();

-            }

-

-            case Id.dialog.import_keys: {

-                return FileDialog.build(this, getString(R.string.title_importKeys),

-                                        getString(R.string.specifyFileToImportFrom),

-                                        mImportFilename,

-                                        new FileDialog.OnClickListener() {

-

-                                            @Override

-                                            public void onOkClick(String filename) {

-                                                removeDialog(Id.dialog.import_keys);

-                                                mImportFilename = filename;

-                                                importKeys();

-                                            }

-

-                                            @Override

-                                            public void onCancelClick() {

-                                                removeDialog(Id.dialog.import_keys);

-                                            }

-                                        },

-                                        getString(R.string.filemanager_titleOpen),

-                                        getString(R.string.filemanager_btnOpen),

-                                        Id.request.filename);

-            }

-

-            case Id.dialog.export_key: {

-                singleKeyExport = true;

-                // break intentionally omitted, to use the Id.dialog.export_keys dialog

-            }

-

-            case Id.dialog.export_keys: {

-                String title = (singleKeyExport ?

-                                    getString(R.string.title_exportKey) :

-                                    getString(R.string.title_exportKeys));

-

-                final int thisDialogId = (singleKeyExport ? Id.dialog.export_key : Id.dialog.export_keys);

-

-                return FileDialog.build(this, title,

-                                        getString(mKeyType == Id.type.public_key ?

-                                                      R.string.specifyFileToExportTo :

-                                                      R.string.specifyFileToExportSecretKeysTo),

-                                        mExportFilename,

-                                        new FileDialog.OnClickListener() {

-                                            @Override

-                                            public void onOkClick(String filename) {

-                                                removeDialog(thisDialogId);

-                                                mExportFilename = filename;

-                                                exportKeys();

-                                            }

-

-                                            @Override

-                                            public void onCancelClick() {

-                                                removeDialog(thisDialogId);

-                                            }

-                                        },

-                                        getString(R.string.filemanager_titleSave),

-                                        getString(R.string.filemanager_btnSave),

-                                        Id.request.filename);

-            }

-

-            default: {

-                return super.onCreateDialog(id);

-            }

-        }

-    }

-

-    public void importKeys() {

-        showDialog(Id.dialog.importing);

-        mTask = Id.task.import_keys;

-        startThread();

-    }

-

-    public void exportKeys() {

-        showDialog(Id.dialog.exporting);

-        mTask = Id.task.export_keys;

-        startThread();

-    }

-

-    @Override

-    public void run() {

-        String error = null;

-        Bundle data = new Bundle();

-        Message msg = new Message();

-

-        try {

-            InputStream importInputStream = null;

-            OutputStream exportOutputStream = null;

-            long size = 0;

-            if (mTask == Id.task.import_keys) {

-                if (mImportData != null) {

-                    byte[] bytes = mImportData.getBytes();

-                    size = bytes.length;

-                    importInputStream = new ByteArrayInputStream(bytes);

-                } else {

-                    File file = new File(mImportFilename);

-                    size = file.length();

-                    importInputStream = new FileInputStream(file);

-                }

-            } else {

-                exportOutputStream = new FileOutputStream(mExportFilename);

-            }

-

-            if (mTask == Id.task.import_keys) {

-                data = Apg.importKeyRings(this, mKeyType, new InputData(importInputStream, size), this);

-            } else {

-                Vector<Integer> keyRingIds = new Vector<Integer>();

-                if (mSelectedItem == -1) {

-                    keyRingIds = Apg.getKeyRingIds(mKeyType == Id.type.public_key ?

-                                                       Id.database.type_public :

-                                                       Id.database.type_secret);

-                } else {

-                    int keyRingId = mListAdapter.getKeyRingId(mSelectedItem);

-                    keyRingIds.add(keyRingId);

-                    mSelectedItem = -1;

-                }

-                data = Apg.exportKeyRings(this, keyRingIds, exportOutputStream, this);

-            }

-        } catch (FileNotFoundException e) {

-            error = getString(R.string.error_fileNotFound);

-        } catch (IOException e) {

-            error = "" + e;

-        } catch (PGPException e) {

-            error = "" + e;

-        } catch (Apg.GeneralException e) {

-            error = "" + e;

-        }

-

-        mImportData = null;

-

-        if (mTask == Id.task.import_keys) {

-            data.putInt(Apg.EXTRA_STATUS, Id.message.import_done);

-        } else {

-            data.putInt(Apg.EXTRA_STATUS, Id.message.export_done);

-        }

-

-        if (error != null) {

-            data.putString(Apg.EXTRA_ERROR, error);

-        }

-

-        msg.setData(data);

-        sendMessage(msg);

-    }

-

-    protected void deleteKey(int keyRingId) {

-        Apg.deleteKey(keyRingId);

-        refreshList();

-    }

-

-    protected void refreshList() {

-        mListAdapter.rebuild(true);

-        mListAdapter.notifyDataSetChanged();

-    }

-

-    @Override

-    public void doneCallback(Message msg) {

-        super.doneCallback(msg);

-

-        Bundle data = msg.getData();

-        if (data != null) {

-            int type = data.getInt(Apg.EXTRA_STATUS);

-            switch (type) {

-                case Id.message.import_done: {

-                    removeDialog(Id.dialog.importing);

-

-                    String error = data.getString(Apg.EXTRA_ERROR);

-                    if (error != null) {

-                        Toast.makeText(KeyListActivity.this,

-                                       getString(R.string.errorMessage, error),

-                                       Toast.LENGTH_SHORT).show();

-                    } else {

-                        int added = data.getInt("added");

-                        int updated = data.getInt("updated");

-                        String message;

-                        if (added > 0 && updated > 0) {

-                            message = getString(R.string.keysAddedAndUpdated, added, updated);

-                        } else if (added > 0) {

-                            message = getString(R.string.keysAdded, added);

-                        } else if (updated > 0) {

-                            message = getString(R.string.keysUpdated, updated);

-                        } else {

-                            message = getString(R.string.noKeysAddedOrUpdated);

-                        }

-                        Toast.makeText(KeyListActivity.this, message,

-                                       Toast.LENGTH_SHORT).show();

-                    }

-                    refreshList();

-                    break;

-                }

-

-                case Id.message.export_done: {

-                    removeDialog(Id.dialog.exporting);

-

-                    String error = data.getString(Apg.EXTRA_ERROR);

-                    if (error != null) {

-                        Toast.makeText(KeyListActivity.this,

-                                       getString(R.string.errorMessage, error),

-                                       Toast.LENGTH_SHORT).show();

-                    } else {

-                        int exported = data.getInt("exported");

-                        String message;

-                        if (exported == 1) {

-                            message = getString(R.string.keyExported);

-                        } else if (exported > 0) {

-                            message = getString(R.string.keysExported, exported);

-                        } else{

-                            message = getString(R.string.noKeysExported);

-                        }

-                        Toast.makeText(KeyListActivity.this, message,

-                                       Toast.LENGTH_SHORT).show();

-                    }

-                    break;

-                }

-

-                default: {

-                    break;

-                }

-            }

-        }

-    }

-

-    protected class KeyListAdapter extends BaseExpandableListAdapter {

-        private LayoutInflater mInflater;

-        private Vector<Vector<KeyChild>> mChildren;

-        private SQLiteDatabase mDatabase;

-        private Cursor mCursor;

-        private String mSearchString;

-

-        private class KeyChild {

-            public static final int KEY = 0;

-            public static final int USER_ID = 1;

-

-            public int type;

-            public String userId;

-            public long keyId;

-            public boolean isMasterKey;

-            public int algorithm;

-            public int keySize;

-            public boolean canSign;

-            public boolean canEncrypt;

-

-            public KeyChild(long keyId, boolean isMasterKey, int algorithm, int keySize,

-                            boolean canSign, boolean canEncrypt) {

-                this.keyId = keyId;

-                this.isMasterKey = isMasterKey;

-                this.algorithm = algorithm;

-                this.keySize = keySize;

-                this.canSign = canSign;

-                this.canEncrypt = canEncrypt;

-            }

-

-            public KeyChild(String userId) {

-                type = USER_ID;

-                this.userId = userId;

-            }

-        }

-

-        public KeyListAdapter(Context context, String searchString) {

-            mSearchString = searchString;

-

-            mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

-            mDatabase = Apg.getDatabase().db();

-            SQLiteQueryBuilder qb = new SQLiteQueryBuilder();

-            qb.setTables(KeyRings.TABLE_NAME + " INNER JOIN " + Keys.TABLE_NAME + " ON " +

-                                          "(" + KeyRings.TABLE_NAME + "." + KeyRings._ID + " = " +

-                                          Keys.TABLE_NAME + "." + Keys.KEY_RING_ID + " AND " +

-                                          Keys.TABLE_NAME + "." + Keys.IS_MASTER_KEY + " = '1'" +

-                                          ") " +

-                                          " INNER JOIN " + UserIds.TABLE_NAME + " ON " +

-                                          "(" + Keys.TABLE_NAME + "." + Keys._ID + " = " +

-                                          UserIds.TABLE_NAME + "." + UserIds.KEY_ID + " AND " +

-                                          UserIds.TABLE_NAME + "." + UserIds.RANK + " = '0')");

-

-            if (searchString != null && searchString.trim().length() > 0) {

-                String[] chunks = searchString.trim().split(" +");

-                qb.appendWhere("EXISTS (SELECT tmp." + UserIds._ID + " FROM " +

-                                        UserIds.TABLE_NAME + " AS tmp WHERE " +

-                                        "tmp." + UserIds.KEY_ID + " = " +

-                                        Keys.TABLE_NAME + "." + Keys._ID);

-                for (int i = 0; i < chunks.length; ++i) {

-                    qb.appendWhere(" AND tmp." + UserIds.USER_ID + " LIKE ");

-                    qb.appendWhereEscapeString("%" + chunks[i] + "%");

-                }

-                qb.appendWhere(")");

-            }

-

-            mCursor = qb.query(mDatabase,

-                    new String[] {

-                        KeyRings.TABLE_NAME + "." + KeyRings._ID,           // 0

-                        KeyRings.TABLE_NAME + "." + KeyRings.MASTER_KEY_ID, // 1

-                        UserIds.TABLE_NAME + "." + UserIds.USER_ID,         // 2

-                    },

-                    KeyRings.TABLE_NAME + "." + KeyRings.TYPE + " = ?",

-                    new String[] { "" + (mKeyType == Id.type.public_key ?

-                                             Id.database.type_public : Id.database.type_secret) },

-                    null, null, UserIds.TABLE_NAME + "." + UserIds.USER_ID + " ASC");

-

-            // content provider way for reference, might have to go back to it sometime:

-            /*Uri contentUri = null;

-            if (mKeyType == Id.type.secret_key) {

-                contentUri = Apg.CONTENT_URI_SECRET_KEY_RINGS;

-            } else {

-                contentUri = Apg.CONTENT_URI_PUBLIC_KEY_RINGS;

-            }

-            mCursor = getContentResolver().query(

-                    contentUri,

-                    new String[] {

-                        DataProvider._ID,           // 0

-                        DataProvider.MASTER_KEY_ID, // 1

-                        DataProvider.USER_ID,       // 2

-                    },

-                    null, null, null);*/

-

-            startManagingCursor(mCursor);

-            rebuild(false);

-        }

-

-        public void cleanup() {

-            if (mCursor != null) {

-                stopManagingCursor(mCursor);

-                mCursor.close();

-            }

-        }

-

-        public void rebuild(boolean requery) {

-            if (requery) {

-                mCursor.requery();

-            }

-            mChildren = new Vector<Vector<KeyChild>>();

-            for (int i = 0; i < mCursor.getCount(); ++i) {

-                mChildren.add(null);

-            }

-        }

-

-        protected Vector<KeyChild> getChildrenOfGroup(int groupPosition) {

-            Vector<KeyChild> children = mChildren.get(groupPosition);

-            if (children != null) {

-                return children;

-            }

-

-            mCursor.moveToPosition(groupPosition);

-            children = new Vector<KeyChild>();

-            Cursor c = mDatabase.query(Keys.TABLE_NAME,

-                    new String[] {

-                        Keys._ID,           // 0

-                        Keys.KEY_ID,        // 1

-                        Keys.IS_MASTER_KEY, // 2

-                        Keys.ALGORITHM,     // 3

-                        Keys.KEY_SIZE,      // 4

-                        Keys.CAN_SIGN,      // 5

-                        Keys.CAN_ENCRYPT,   // 6

-                    },

-                    Keys.KEY_RING_ID + " = ?",

-                    new String[] { mCursor.getString(0) },

-                    null, null, Keys.RANK + " ASC");

-

-            long masterKeyId = -1;

-            for (int i = 0; i < c.getCount(); ++i) {

-                c.moveToPosition(i);

-                children.add(new KeyChild(c.getLong(1), c.getInt(2) == 1, c.getInt(3), c.getInt(4),

-                                          c.getInt(5) == 1, c.getInt(6) == 1));

-                if (i == 0) {

-                    masterKeyId = c.getInt(0);

-                }

-            }

-            c.close();

-

-            if (masterKeyId != -1) {

-                c = mDatabase.query(UserIds.TABLE_NAME,

-                         new String[] {

-                             UserIds.USER_ID, // 0

-                         },

-                         UserIds.KEY_ID + " = ? AND " + UserIds.RANK + " > 0",

-                         new String[] { "" + masterKeyId },

-                         null, null, UserIds.RANK + " ASC");

-

-                 for (int i = 0; i < c.getCount(); ++i) {

-                     c.moveToPosition(i);

-                     children.add(new KeyChild(c.getString(0)));

-                 }

-                 c.close();

-            }

-

-            mChildren.set(groupPosition, children);

-            return children;

-        }

-

-        @Override

-        public boolean hasStableIds() {

-            return true;

-        }

-

-        @Override

-        public boolean isChildSelectable(int groupPosition, int childPosition) {

-            return true;

-        }

-

-        public int getGroupCount() {

-            return mCursor.getCount();

-        }

-

-        public Object getChild(int groupPosition, int childPosition) {

-            return null;

-        }

-

-        public long getChildId(int groupPosition, int childPosition) {

-            return childPosition;

-        }

-

-        public int getChildrenCount(int groupPosition) {

-            return getChildrenOfGroup(groupPosition).size();

-        }

-

-        public Object getGroup(int position) {

-            return position;

-        }

-

-        public long getGroupId(int position) {

-            mCursor.moveToPosition(position);

-            return mCursor.getLong(1); // MASTER_KEY_ID

-        }

-

-        public int getKeyRingId(int position) {

-            mCursor.moveToPosition(position);

-            return mCursor.getInt(0); // _ID

-        }

-

-        public View getGroupView(int groupPosition, boolean isExpanded, View convertView,

-                                 ViewGroup parent) {

-            mCursor.moveToPosition(groupPosition);

-

-            View view = mInflater.inflate(R.layout.key_list_group_item, null);

-            view.setBackgroundResource(android.R.drawable.list_selector_background);

-

-            TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);

-            mainUserId.setText("");

-            TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);

-            mainUserIdRest.setText("");

-

-            String userId = mCursor.getString(2); // USER_ID

-            if (userId != null) {

-                String chunks[] = userId.split(" <", 2);

-                userId = chunks[0];

-                if (chunks.length > 1) {

-                    mainUserIdRest.setText("<" + chunks[1]);

-                }

-                mainUserId.setText(userId);

-            }

-

-            if (mainUserId.getText().length() == 0) {

-                mainUserId.setText(R.string.unknownUserId);

-            }

-

-            if (mainUserIdRest.getText().length() == 0) {

-                mainUserIdRest.setVisibility(View.GONE);

-            }

-            return view;

-        }

-

-        public View getChildView(int groupPosition, int childPosition,

-                                 boolean isLastChild, View convertView,

-                                 ViewGroup parent) {

-            mCursor.moveToPosition(groupPosition);

-

-            Vector<KeyChild> children = getChildrenOfGroup(groupPosition);

-

-            KeyChild child = children.get(childPosition);

-            View view = null;

-            switch (child.type) {

-                case KeyChild.KEY: {

-                    if (child.isMasterKey) {

-                        view = mInflater.inflate(R.layout.key_list_child_item_master_key, null);

-                    } else {

-                        view = mInflater.inflate(R.layout.key_list_child_item_sub_key, null);

-                    }

-

-                    TextView keyId = (TextView) view.findViewById(R.id.keyId);

-                    String keyIdStr = Long.toHexString(child.keyId & 0xffffffffL);

-                    while (keyIdStr.length() < 8) {

-                        keyIdStr = "0" + keyIdStr;

-                    }

-                    keyId.setText(keyIdStr);

-                    TextView keyDetails = (TextView) view.findViewById(R.id.keyDetails);

-                    String algorithmStr = Apg.getAlgorithmInfo(child.algorithm, child.keySize);

-                    keyDetails.setText("(" + algorithmStr + ")");

-

-                    ImageView encryptIcon = (ImageView) view.findViewById(R.id.ic_encryptKey);

-                    if (!child.canEncrypt) {

-                        encryptIcon.setVisibility(View.GONE);

-                    }

-

-                    ImageView signIcon = (ImageView) view.findViewById(R.id.ic_signKey);

-                    if (!child.canSign) {

-                        signIcon.setVisibility(View.GONE);

-                    }

-                    break;

-                }

-

-                case KeyChild.USER_ID: {

-                    view = mInflater.inflate(R.layout.key_list_child_item_user_id, null);

-                    TextView userId = (TextView) view.findViewById(R.id.userId);

-                    userId.setText(child.userId);

-                    break;

-                }

-            }

-            return view;

-        }

-    }

-

-    @Override

-    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

-        switch (requestCode) {

-            case Id.request.filename: {

-                if (resultCode == RESULT_OK && data != null) {

-                    String filename = data.getDataString();

-                    if (filename != null) {

-                        // Get rid of URI prefix:

-                        if (filename.startsWith("file://")) {

-                            filename = filename.substring(7);

-                        }

-                        // replace %20 and so on

-                        filename = Uri.decode(filename);

-

-                        FileDialog.setFilename(filename);

-                    }

-                }

-                return;

-            }

-

-            default: {

-                break;

-            }

-        }

-        super.onActivityResult(requestCode, resultCode, data);

-    }

-}

+/*
+ * 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.thialfihar.android.apg;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Vector;
+
+import org.bouncycastle2.openpgp.PGPException;
+import org.bouncycastle2.openpgp.PGPPublicKeyRing;
+import org.bouncycastle2.openpgp.PGPSecretKeyRing;
+import org.thialfihar.android.apg.provider.KeyRings;
+import org.thialfihar.android.apg.provider.Keys;
+import org.thialfihar.android.apg.provider.UserIds;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.SearchManager;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteQueryBuilder;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Message;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.BaseExpandableListAdapter;
+import android.widget.Button;
+import android.widget.ExpandableListView;
+import android.widget.ExpandableListView.ExpandableListContextMenuInfo;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+public class KeyListActivity extends BaseActivity {
+    protected ExpandableListView mList;
+    protected KeyListAdapter mListAdapter;
+    protected View mFilterLayout;
+    protected Button mClearFilterButton;
+    protected TextView mFilterInfo;
+
+    protected int mSelectedItem = -1;
+    protected int mTask = 0;
+
+    protected String mImportFilename = Constants.path.app_dir + "/";
+    protected String mExportFilename = Constants.path.app_dir + "/";
+
+    protected String mImportData;
+
+    protected int mKeyType = Id.type.public_key;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.key_list);
+
+        setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
+
+        mList = (ExpandableListView) findViewById(R.id.list);
+        registerForContextMenu(mList);
+
+        mFilterLayout = (View) findViewById(R.id.layout_filter);
+        mFilterInfo = (TextView) mFilterLayout.findViewById(R.id.filterInfo);
+        mClearFilterButton = (Button) mFilterLayout.findViewById(R.id.btn_clear);
+
+        mClearFilterButton.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                handleIntent(new Intent());
+            }
+        });
+
+        handleIntent(getIntent());
+
+        Intent intent = getIntent();
+        if (Apg.Intent.IMPORT.equals(intent.getAction())) {
+            if ("file".equals(intent.getScheme()) && intent.getDataString() != null) {
+                mImportFilename = intent.getDataString().replace("file://", "");
+            } else {
+                mImportData = intent.getStringExtra(Apg.EXTRA_TEXT);
+            }
+            importKeys();
+        }
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        handleIntent(intent);
+    }
+
+    private void handleIntent(Intent intent) {
+        String searchString = null;
+        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
+            searchString = intent.getStringExtra(SearchManager.QUERY);
+            if (searchString != null && searchString.trim().length() == 0) {
+                searchString = null;
+            }
+        }
+
+        if (searchString == null) {
+            mFilterLayout.setVisibility(View.GONE);
+        } else {
+            mFilterLayout.setVisibility(View.VISIBLE);
+            mFilterInfo.setText(getString(R.string.filterInfo, searchString));
+        }
+
+        if (mListAdapter != null) {
+            mListAdapter.cleanup();
+        }
+        mListAdapter = new KeyListAdapter(this, searchString);
+        mList.setAdapter(mListAdapter);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case Id.menu.option.import_keys: {
+                showDialog(Id.dialog.import_keys);
+                return true;
+            }
+
+            case Id.menu.option.export_keys: {
+                showDialog(Id.dialog.export_keys);
+                return true;
+            }
+
+            default: {
+                return super.onOptionsItemSelected(item);
+            }
+        }
+    }
+
+    @Override
+    public boolean onContextItemSelected(MenuItem menuItem) {
+        ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) menuItem.getMenuInfo();
+        int type = ExpandableListView.getPackedPositionType(info.packedPosition);
+        int groupPosition = ExpandableListView.getPackedPositionGroup(info.packedPosition);
+
+        if (type != ExpandableListView.PACKED_POSITION_TYPE_GROUP) {
+            return super.onContextItemSelected(menuItem);
+        }
+
+        switch (menuItem.getItemId()) {
+            case Id.menu.export: {
+                mSelectedItem = groupPosition;
+                showDialog(Id.dialog.export_key);
+                return true;
+            }
+
+            case Id.menu.delete: {
+                mSelectedItem = groupPosition;
+                showDialog(Id.dialog.delete_key);
+                return true;
+            }
+
+            default: {
+                return super.onContextItemSelected(menuItem);
+            }
+        }
+    }
+
+    @Override
+    protected Dialog onCreateDialog(int id) {
+        boolean singleKeyExport = false;
+
+        switch (id) {
+            case Id.dialog.delete_key: {
+                final int keyRingId = mListAdapter.getKeyRingId(mSelectedItem);
+                mSelectedItem = -1;
+                // TODO: better way to do this?
+                String userId = "<unknown>";
+                Object keyRing = Apg.getKeyRing(keyRingId);
+                if (keyRing != null) {
+                    if (keyRing instanceof PGPPublicKeyRing) {
+                        userId = Apg.getMainUserIdSafe(this, Apg.getMasterKey((PGPPublicKeyRing) keyRing));
+                    } else {
+                        userId = Apg.getMainUserIdSafe(this, Apg.getMasterKey((PGPSecretKeyRing) keyRing));
+                    }
+                }
+
+                AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                builder.setTitle(R.string.warning);
+                builder.setMessage(getString(mKeyType == Id.type.public_key ?
+                                                 R.string.keyDeletionConfirmation :
+                                                 R.string.secretKeyDeletionConfirmation, userId));
+                builder.setIcon(android.R.drawable.ic_dialog_alert);
+                builder.setPositiveButton(R.string.btn_delete,
+                                          new DialogInterface.OnClickListener() {
+                                              public void onClick(DialogInterface dialog, int id) {
+                                                  deleteKey(keyRingId);
+                                                  removeDialog(Id.dialog.delete_key);
+                                              }
+                                          });
+                builder.setNegativeButton(android.R.string.cancel,
+                                          new DialogInterface.OnClickListener() {
+                                              public void onClick(DialogInterface dialog, int id) {
+                                                  removeDialog(Id.dialog.delete_key);
+                                              }
+                                          });
+                return builder.create();
+            }
+
+            case Id.dialog.import_keys: {
+                return FileDialog.build(this, getString(R.string.title_importKeys),
+                                        getString(R.string.specifyFileToImportFrom),
+                                        mImportFilename,
+                                        new FileDialog.OnClickListener() {
+
+                                            @Override
+                                            public void onOkClick(String filename) {
+                                                removeDialog(Id.dialog.import_keys);
+                                                mImportFilename = filename;
+                                                importKeys();
+                                            }
+
+                                            @Override
+                                            public void onCancelClick() {
+                                                removeDialog(Id.dialog.import_keys);
+                                            }
+                                        },
+                                        getString(R.string.filemanager_titleOpen),
+                                        getString(R.string.filemanager_btnOpen),
+                                        Id.request.filename);
+            }
+
+            case Id.dialog.export_key: {
+                singleKeyExport = true;
+                // break intentionally omitted, to use the Id.dialog.export_keys dialog
+            }
+
+            case Id.dialog.export_keys: {
+                String title = (singleKeyExport ?
+                                    getString(R.string.title_exportKey) :
+                                    getString(R.string.title_exportKeys));
+
+                final int thisDialogId = (singleKeyExport ? Id.dialog.export_key : Id.dialog.export_keys);
+
+                return FileDialog.build(this, title,
+                                        getString(mKeyType == Id.type.public_key ?
+                                                      R.string.specifyFileToExportTo :
+                                                      R.string.specifyFileToExportSecretKeysTo),
+                                        mExportFilename,
+                                        new FileDialog.OnClickListener() {
+                                            @Override
+                                            public void onOkClick(String filename) {
+                                                removeDialog(thisDialogId);
+                                                mExportFilename = filename;
+                                                exportKeys();
+                                            }
+
+                                            @Override
+                                            public void onCancelClick() {
+                                                removeDialog(thisDialogId);
+                                            }
+                                        },
+                                        getString(R.string.filemanager_titleSave),
+                                        getString(R.string.filemanager_btnSave),
+                                        Id.request.filename);
+            }
+
+            default: {
+                return super.onCreateDialog(id);
+            }
+        }
+    }
+
+    public void importKeys() {
+        showDialog(Id.dialog.importing);
+        mTask = Id.task.import_keys;
+        startThread();
+    }
+
+    public void exportKeys() {
+        showDialog(Id.dialog.exporting);
+        mTask = Id.task.export_keys;
+        startThread();
+    }
+
+    @Override
+    public void run() {
+        String error = null;
+        Bundle data = new Bundle();
+        Message msg = new Message();
+
+        try {
+            InputStream importInputStream = null;
+            OutputStream exportOutputStream = null;
+            long size = 0;
+            if (mTask == Id.task.import_keys) {
+                if (mImportData != null) {
+                    byte[] bytes = mImportData.getBytes();
+                    size = bytes.length;
+                    importInputStream = new ByteArrayInputStream(bytes);
+                } else {
+                    File file = new File(mImportFilename);
+                    size = file.length();
+                    importInputStream = new FileInputStream(file);
+                }
+            } else {
+                exportOutputStream = new FileOutputStream(mExportFilename);
+            }
+
+            if (mTask == Id.task.import_keys) {
+                data = Apg.importKeyRings(this, mKeyType, new InputData(importInputStream, size), this);
+            } else {
+                Vector<Integer> keyRingIds = new Vector<Integer>();
+                if (mSelectedItem == -1) {
+                    keyRingIds = Apg.getKeyRingIds(mKeyType == Id.type.public_key ?
+                                                       Id.database.type_public :
+                                                       Id.database.type_secret);
+                } else {
+                    int keyRingId = mListAdapter.getKeyRingId(mSelectedItem);
+                    keyRingIds.add(keyRingId);
+                    mSelectedItem = -1;
+                }
+                data = Apg.exportKeyRings(this, keyRingIds, exportOutputStream, this);
+            }
+        } catch (FileNotFoundException e) {
+            error = getString(R.string.error_fileNotFound);
+        } catch (IOException e) {
+            error = "" + e;
+        } catch (PGPException e) {
+            error = "" + e;
+        } catch (Apg.GeneralException e) {
+            error = "" + e;
+        }
+
+        mImportData = null;
+
+        if (mTask == Id.task.import_keys) {
+            data.putInt(Apg.EXTRA_STATUS, Id.message.import_done);
+        } else {
+            data.putInt(Apg.EXTRA_STATUS, Id.message.export_done);
+        }
+
+        if (error != null) {
+            data.putString(Apg.EXTRA_ERROR, error);
+        }
+
+        msg.setData(data);
+        sendMessage(msg);
+    }
+
+    protected void deleteKey(int keyRingId) {
+        Apg.deleteKey(keyRingId);
+        refreshList();
+    }
+
+    protected void refreshList() {
+        mListAdapter.rebuild(true);
+        mListAdapter.notifyDataSetChanged();
+    }
+
+    @Override
+    public void doneCallback(Message msg) {
+        super.doneCallback(msg);
+
+        Bundle data = msg.getData();
+        if (data != null) {
+            int type = data.getInt(Apg.EXTRA_STATUS);
+            switch (type) {
+                case Id.message.import_done: {
+                    removeDialog(Id.dialog.importing);
+
+                    String error = data.getString(Apg.EXTRA_ERROR);
+                    if (error != null) {
+                        Toast.makeText(KeyListActivity.this,
+                                       getString(R.string.errorMessage, error),
+                                       Toast.LENGTH_SHORT).show();
+                    } else {
+                        int added = data.getInt("added");
+                        int updated = data.getInt("updated");
+                        String message;
+                        if (added > 0 && updated > 0) {
+                            message = getString(R.string.keysAddedAndUpdated, added, updated);
+                        } else if (added > 0) {
+                            message = getString(R.string.keysAdded, added);
+                        } else if (updated > 0) {
+                            message = getString(R.string.keysUpdated, updated);
+                        } else {
+                            message = getString(R.string.noKeysAddedOrUpdated);
+                        }
+                        Toast.makeText(KeyListActivity.this, message,
+                                       Toast.LENGTH_SHORT).show();
+                    }
+                    refreshList();
+                    break;
+                }
+
+                case Id.message.export_done: {
+                    removeDialog(Id.dialog.exporting);
+
+                    String error = data.getString(Apg.EXTRA_ERROR);
+                    if (error != null) {
+                        Toast.makeText(KeyListActivity.this,
+                                       getString(R.string.errorMessage, error),
+                                       Toast.LENGTH_SHORT).show();
+                    } else {
+                        int exported = data.getInt("exported");
+                        String message;
+                        if (exported == 1) {
+                            message = getString(R.string.keyExported);
+                        } else if (exported > 0) {
+                            message = getString(R.string.keysExported, exported);
+                        } else{
+                            message = getString(R.string.noKeysExported);
+                        }
+                        Toast.makeText(KeyListActivity.this, message,
+                                       Toast.LENGTH_SHORT).show();
+                    }
+                    break;
+                }
+
+                default: {
+                    break;
+                }
+            }
+        }
+    }
+
+    protected class KeyListAdapter extends BaseExpandableListAdapter {
+        private LayoutInflater mInflater;
+        private Vector<Vector<KeyChild>> mChildren;
+        private SQLiteDatabase mDatabase;
+        private Cursor mCursor;
+        private String mSearchString;
+
+        private class KeyChild {
+            public static final int KEY = 0;
+            public static final int USER_ID = 1;
+
+            public int type;
+            public String userId;
+            public long keyId;
+            public boolean isMasterKey;
+            public int algorithm;
+            public int keySize;
+            public boolean canSign;
+            public boolean canEncrypt;
+
+            public KeyChild(long keyId, boolean isMasterKey, int algorithm, int keySize,
+                            boolean canSign, boolean canEncrypt) {
+                this.keyId = keyId;
+                this.isMasterKey = isMasterKey;
+                this.algorithm = algorithm;
+                this.keySize = keySize;
+                this.canSign = canSign;
+                this.canEncrypt = canEncrypt;
+            }
+
+            public KeyChild(String userId) {
+                type = USER_ID;
+                this.userId = userId;
+            }
+        }
+
+        public KeyListAdapter(Context context, String searchString) {
+            mSearchString = searchString;
+
+            mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            mDatabase = Apg.getDatabase().db();
+            SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
+            qb.setTables(KeyRings.TABLE_NAME + " INNER JOIN " + Keys.TABLE_NAME + " ON " +
+                                          "(" + KeyRings.TABLE_NAME + "." + KeyRings._ID + " = " +
+                                          Keys.TABLE_NAME + "." + Keys.KEY_RING_ID + " AND " +
+                                          Keys.TABLE_NAME + "." + Keys.IS_MASTER_KEY + " = '1'" +
+                                          ") " +
+                                          " INNER JOIN " + UserIds.TABLE_NAME + " ON " +
+                                          "(" + Keys.TABLE_NAME + "." + Keys._ID + " = " +
+                                          UserIds.TABLE_NAME + "." + UserIds.KEY_ID + " AND " +
+                                          UserIds.TABLE_NAME + "." + UserIds.RANK + " = '0')");
+
+            if (searchString != null && searchString.trim().length() > 0) {
+                String[] chunks = searchString.trim().split(" +");
+                qb.appendWhere("EXISTS (SELECT tmp." + UserIds._ID + " FROM " +
+                                        UserIds.TABLE_NAME + " AS tmp WHERE " +
+                                        "tmp." + UserIds.KEY_ID + " = " +
+                                        Keys.TABLE_NAME + "." + Keys._ID);
+                for (int i = 0; i < chunks.length; ++i) {
+                    qb.appendWhere(" AND tmp." + UserIds.USER_ID + " LIKE ");
+                    qb.appendWhereEscapeString("%" + chunks[i] + "%");
+                }
+                qb.appendWhere(")");
+            }
+
+            mCursor = qb.query(mDatabase,
+                    new String[] {
+                        KeyRings.TABLE_NAME + "." + KeyRings._ID,           // 0
+                        KeyRings.TABLE_NAME + "." + KeyRings.MASTER_KEY_ID, // 1
+                        UserIds.TABLE_NAME + "." + UserIds.USER_ID,         // 2
+                    },
+                    KeyRings.TABLE_NAME + "." + KeyRings.TYPE + " = ?",
+                    new String[] { "" + (mKeyType == Id.type.public_key ?
+                                             Id.database.type_public : Id.database.type_secret) },
+                    null, null, UserIds.TABLE_NAME + "." + UserIds.USER_ID + " ASC");
+
+            // content provider way for reference, might have to go back to it sometime:
+            /*Uri contentUri = null;
+            if (mKeyType == Id.type.secret_key) {
+                contentUri = Apg.CONTENT_URI_SECRET_KEY_RINGS;
+            } else {
+                contentUri = Apg.CONTENT_URI_PUBLIC_KEY_RINGS;
+            }
+            mCursor = getContentResolver().query(
+                    contentUri,
+                    new String[] {
+                        DataProvider._ID,           // 0
+                        DataProvider.MASTER_KEY_ID, // 1
+                        DataProvider.USER_ID,       // 2
+                    },
+                    null, null, null);*/
+
+            startManagingCursor(mCursor);
+            rebuild(false);
+        }
+
+        public void cleanup() {
+            if (mCursor != null) {
+                stopManagingCursor(mCursor);
+                mCursor.close();
+            }
+        }
+
+        public void rebuild(boolean requery) {
+            if (requery) {
+                mCursor.requery();
+            }
+            mChildren = new Vector<Vector<KeyChild>>();
+            for (int i = 0; i < mCursor.getCount(); ++i) {
+                mChildren.add(null);
+            }
+        }
+
+        protected Vector<KeyChild> getChildrenOfGroup(int groupPosition) {
+            Vector<KeyChild> children = mChildren.get(groupPosition);
+            if (children != null) {
+                return children;
+            }
+
+            mCursor.moveToPosition(groupPosition);
+            children = new Vector<KeyChild>();
+            Cursor c = mDatabase.query(Keys.TABLE_NAME,
+                    new String[] {
+                        Keys._ID,           // 0
+                        Keys.KEY_ID,        // 1
+                        Keys.IS_MASTER_KEY, // 2
+                        Keys.ALGORITHM,     // 3
+                        Keys.KEY_SIZE,      // 4
+                        Keys.CAN_SIGN,      // 5
+                        Keys.CAN_ENCRYPT,   // 6
+                    },
+                    Keys.KEY_RING_ID + " = ?",
+                    new String[] { mCursor.getString(0) },
+                    null, null, Keys.RANK + " ASC");
+
+            long masterKeyId = -1;
+            for (int i = 0; i < c.getCount(); ++i) {
+                c.moveToPosition(i);
+                children.add(new KeyChild(c.getLong(1), c.getInt(2) == 1, c.getInt(3), c.getInt(4),
+                                          c.getInt(5) == 1, c.getInt(6) == 1));
+                if (i == 0) {
+                    masterKeyId = c.getInt(0);
+                }
+            }
+            c.close();
+
+            if (masterKeyId != -1) {
+                c = mDatabase.query(UserIds.TABLE_NAME,
+                         new String[] {
+                             UserIds.USER_ID, // 0
+                         },
+                         UserIds.KEY_ID + " = ? AND " + UserIds.RANK + " > 0",
+                         new String[] { "" + masterKeyId },
+                         null, null, UserIds.RANK + " ASC");
+
+                 for (int i = 0; i < c.getCount(); ++i) {
+                     c.moveToPosition(i);
+                     children.add(new KeyChild(c.getString(0)));
+                 }
+                 c.close();
+            }
+
+            mChildren.set(groupPosition, children);
+            return children;
+        }
+
+        @Override
+        public boolean hasStableIds() {
+            return true;
+        }
+
+        @Override
+        public boolean isChildSelectable(int groupPosition, int childPosition) {
+            return true;
+        }
+
+        public int getGroupCount() {
+            return mCursor.getCount();
+        }
+
+        public Object getChild(int groupPosition, int childPosition) {
+            return null;
+        }
+
+        public long getChildId(int groupPosition, int childPosition) {
+            return childPosition;
+        }
+
+        public int getChildrenCount(int groupPosition) {
+            return getChildrenOfGroup(groupPosition).size();
+        }
+
+        public Object getGroup(int position) {
+            return position;
+        }
+
+        public long getGroupId(int position) {
+            mCursor.moveToPosition(position);
+            return mCursor.getLong(1); // MASTER_KEY_ID
+        }
+
+        public int getKeyRingId(int position) {
+            mCursor.moveToPosition(position);
+            return mCursor.getInt(0); // _ID
+        }
+
+        public View getGroupView(int groupPosition, boolean isExpanded, View convertView,
+                                 ViewGroup parent) {
+            mCursor.moveToPosition(groupPosition);
+
+            View view = mInflater.inflate(R.layout.key_list_group_item, null);
+            view.setBackgroundResource(android.R.drawable.list_selector_background);
+
+            TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);
+            mainUserId.setText("");
+            TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
+            mainUserIdRest.setText("");
+
+            String userId = mCursor.getString(2); // USER_ID
+            if (userId != null) {
+                String chunks[] = userId.split(" <", 2);
+                userId = chunks[0];
+                if (chunks.length > 1) {
+                    mainUserIdRest.setText("<" + chunks[1]);
+                }
+                mainUserId.setText(userId);
+            }
+
+            if (mainUserId.getText().length() == 0) {
+                mainUserId.setText(R.string.unknownUserId);
+            }
+
+            if (mainUserIdRest.getText().length() == 0) {
+                mainUserIdRest.setVisibility(View.GONE);
+            }
+            return view;
+        }
+
+        public View getChildView(int groupPosition, int childPosition,
+                                 boolean isLastChild, View convertView,
+                                 ViewGroup parent) {
+            mCursor.moveToPosition(groupPosition);
+
+            Vector<KeyChild> children = getChildrenOfGroup(groupPosition);
+
+            KeyChild child = children.get(childPosition);
+            View view = null;
+            switch (child.type) {
+                case KeyChild.KEY: {
+                    if (child.isMasterKey) {
+                        view = mInflater.inflate(R.layout.key_list_child_item_master_key, null);
+                    } else {
+                        view = mInflater.inflate(R.layout.key_list_child_item_sub_key, null);
+                    }
+
+                    TextView keyId = (TextView) view.findViewById(R.id.keyId);
+                    String keyIdStr = Long.toHexString(child.keyId & 0xffffffffL);
+                    while (keyIdStr.length() < 8) {
+                        keyIdStr = "0" + keyIdStr;
+                    }
+                    keyId.setText(keyIdStr);
+                    TextView keyDetails = (TextView) view.findViewById(R.id.keyDetails);
+                    String algorithmStr = Apg.getAlgorithmInfo(child.algorithm, child.keySize);
+                    keyDetails.setText("(" + algorithmStr + ")");
+
+                    ImageView encryptIcon = (ImageView) view.findViewById(R.id.ic_encryptKey);
+                    if (!child.canEncrypt) {
+                        encryptIcon.setVisibility(View.GONE);
+                    }
+
+                    ImageView signIcon = (ImageView) view.findViewById(R.id.ic_signKey);
+                    if (!child.canSign) {
+                        signIcon.setVisibility(View.GONE);
+                    }
+                    break;
+                }
+
+                case KeyChild.USER_ID: {
+                    view = mInflater.inflate(R.layout.key_list_child_item_user_id, null);
+                    TextView userId = (TextView) view.findViewById(R.id.userId);
+                    userId.setText(child.userId);
+                    break;
+                }
+            }
+            return view;
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode) {
+            case Id.request.filename: {
+                if (resultCode == RESULT_OK && data != null) {
+                    String filename = data.getDataString();
+                    if (filename != null) {
+                        // Get rid of URI prefix:
+                        if (filename.startsWith("file://")) {
+                            filename = filename.substring(7);
+                        }
+                        // replace %20 and so on
+                        filename = Uri.decode(filename);
+
+                        FileDialog.setFilename(filename);
+                    }
+                }
+                return;
+            }
+
+            default: {
+                break;
+            }
+        }
+        super.onActivityResult(requestCode, resultCode, data);
+    }
+}