moparisthebest
/
open-keychain
mirror of https://github.com/moparisthebest/open-keychain
1
0
Fork 0
Code Issues Releases Wiki Activity
open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java

822 lines
33 KiB
Java
Raw Blame History

/*
* Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
*
* 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;
import android.annotation.TargetApi;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.NoScrollableSwipeRefreshLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AbsListView.MultiChoiceModeListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
import org.sufficientlysecure.keychain.operations.results.DeleteResult;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
import org.sufficientlysecure.keychain.operations.results.OperationResult;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
import org.sufficientlysecure.keychain.util.ExportHelper;
import org.sufficientlysecure.keychain.util.KeyUpdateHelper;
import org.sufficientlysecure.keychain.pgp.KeyRing;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
import org.sufficientlysecure.keychain.ui.widget.ListAwareSwipeRefreshLayout;
import org.sufficientlysecure.keychain.ui.util.Highlighter;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.util.ParcelableFileCache;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import edu.cmu.cylab.starslinger.exchange.ExchangeActivity;
import edu.cmu.cylab.starslinger.exchange.ExchangeConfig;
import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
/**
* Public key list with sticky list headers. It does _not_ extend ListFragment because it uses
* StickyListHeaders library which does not extend upon ListView.
*/
public class KeyListFragment extends LoaderFragment
implements SearchView.OnQueryTextListener, AdapterView.OnItemClickListener,
LoaderManager.LoaderCallbacks<Cursor> {
private KeyListAdapter mAdapter;
private StickyListHeadersListView mStickyList;
private ListAwareSwipeRefreshLayout mSwipeRefreshLayout;
// saves the mode object for multiselect, needed for reset at some point
private ActionMode mActionMode = null;
private boolean mShowAllKeys = true;
private String mQuery;
private SearchView mSearchView;
boolean hideMenu = false;
/**
* Load custom layout with StickyListView from library
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
View root = super.onCreateView(inflater, superContainer, savedInstanceState);
View view = inflater.inflate(R.layout.key_list_fragment, getContainer());
mStickyList = (StickyListHeadersListView) view.findViewById(R.id.key_list_list);
mStickyList.setOnItemClickListener(this);
mSwipeRefreshLayout = (ListAwareSwipeRefreshLayout) view.findViewById(R.id.key_list_swipe_container);
mSwipeRefreshLayout.setOnRefreshListener(new NoScrollableSwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
KeychainIntentServiceHandler finishedHandler = new KeychainIntentServiceHandler(getActivity()) {
public void handleMessage(Message message) {
if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
mSwipeRefreshLayout.setRefreshing(false);
}
}
};
// new KeyUpdateHelper().updateAllKeys(getActivity(), finishedHandler);
updateActionbarForSwipe(false);
}
});
mSwipeRefreshLayout.setColorScheme(
R.color.android_purple_dark,
R.color.android_purple_light,
R.color.android_purple_dark,
R.color.android_purple_light);
mSwipeRefreshLayout.setStickyListHeadersListView(mStickyList);
mSwipeRefreshLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_MOVE) {
updateActionbarForSwipe(true);
} else {
updateActionbarForSwipe(false);
}
return false;
}
});
// Just disable for now
mSwipeRefreshLayout.setIsLocked(true);
return root;
}
private void updateActionbarForSwipe(boolean show) {
ActionBarActivity activity = (ActionBarActivity) getActivity();
ActionBar bar = activity.getSupportActionBar();
if (show) {
bar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
bar.setDisplayUseLogoEnabled(false);
bar.setCustomView(R.layout.custom_actionbar);
TextView title = (TextView) getActivity().findViewById(R.id.custom_actionbar_text);
title.setText(R.string.swipe_to_update);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
hideMenu = true;
activity.invalidateOptionsMenu();
}
} else {
bar.setTitle(getActivity().getTitle());
bar.setDisplayHomeAsUpEnabled(true);
bar.setDisplayShowTitleEnabled(true);
bar.setDisplayUseLogoEnabled(true);
bar.setDisplayShowHomeEnabled(true);
bar.setDisplayShowCustomEnabled(false);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
hideMenu = false;
activity.invalidateOptionsMenu();
}
}
}
/**
* Define Adapter and Loader on create of Activity
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mStickyList.setOnItemClickListener(this);
mStickyList.setAreHeadersSticky(true);
mStickyList.setDrawingListUnderStickyHeader(false);
mStickyList.setFastScrollEnabled(true);
/*
* Multi-selection is only available for Android >= 3.0
*/
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mStickyList.setFastScrollAlwaysVisible(true);
mStickyList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
mStickyList.getWrappedList().setMultiChoiceModeListener(new MultiChoiceModeListener() {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
android.view.MenuInflater inflater = getActivity().getMenuInflater();
inflater.inflate(R.menu.key_list_multi, menu);
mActionMode = mode;
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
// get IDs for checked positions as long array
long[] ids;
switch (item.getItemId()) {
case R.id.menu_key_list_multi_encrypt: {
ids = mAdapter.getCurrentSelectedMasterKeyIds();
encrypt(mode, ids);
break;
}
case R.id.menu_key_list_multi_delete: {
ids = mAdapter.getCurrentSelectedMasterKeyIds();
showDeleteKeyDialog(mode, ids, mAdapter.isAnySecretSelected());
break;
}
case R.id.menu_key_list_multi_export: {
ids = mAdapter.getCurrentSelectedMasterKeyIds();
ExportHelper mExportHelper = new ExportHelper((ActionBarActivity) getActivity());
mExportHelper.showExportKeysDialog(ids, Constants.Path.APP_DIR_FILE,
mAdapter.isAnySecretSelected());
break;
}
case R.id.menu_key_list_multi_select_all: {
// select all
for (int i = 0; i < mStickyList.getCount(); i++) {
mStickyList.setItemChecked(i, true);
}
break;
}
}
return true;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
mActionMode = null;
mAdapter.clearSelection();
}
@Override
public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
boolean checked) {
if (checked) {
mAdapter.setNewSelection(position, checked);
} else {
mAdapter.removeSelection(position);
}
int count = mStickyList.getCheckedItemCount();
String keysSelected = getResources().getQuantityString(
R.plurals.key_list_selected_keys, count, count);
mode.setTitle(keysSelected);
}
});
}
// We have a menu item to show in action bar.
setHasOptionsMenu(true);
// Start out with a progress indicator.
setContentShown(false);
// Create an empty adapter we will use to display the loaded data.
mAdapter = new KeyListAdapter(getActivity(), null, 0);
mStickyList.setAdapter(mAdapter);
// Prepare the loader. Either re-connect with an existing one,
// or start a new one.
getLoaderManager().initLoader(0, null, this);
}
// These are the rows that we will retrieve.
static final String[] PROJECTION = new String[]{
KeyRings._ID,
KeyRings.MASTER_KEY_ID,
KeyRings.USER_ID,
KeyRings.IS_REVOKED,
KeyRings.EXPIRY,
KeyRings.VERIFIED,
KeyRings.HAS_ANY_SECRET
};
static final int INDEX_MASTER_KEY_ID = 1;
static final int INDEX_USER_ID = 2;
static final int INDEX_IS_REVOKED = 3;
static final int INDEX_EXPIRY = 4;
static final int INDEX_VERIFIED = 5;
static final int INDEX_HAS_ANY_SECRET = 6;
static final String ORDER =
KeyRings.HAS_ANY_SECRET + " DESC, UPPER(" + KeyRings.USER_ID + ") ASC";
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// This is called when a new Loader needs to be created. This
// sample only has one Loader, so we don't care about the ID.
Uri baseUri = KeyRings.buildUnifiedKeyRingsUri();
String where = null;
String whereArgs[] = null;
if (mQuery != null) {
String[] words = mQuery.trim().split("\\s+");
whereArgs = new String[words.length];
for (int i = 0; i < words.length; ++i) {
if (where == null) {
where = "";
} else {
where += " AND ";
}
where += KeyRings.USER_ID + " LIKE ?";
whereArgs[i] = "%" + words[i] + "%";
}
}
if (!mShowAllKeys) {
if (where == null) {
where = "";
} else {
where += " AND ";
}
where += KeyRings.VERIFIED + " != 0";
}
// Now create and return a CursorLoader that will take care of
// creating a Cursor for the data being displayed.
return new CursorLoader(getActivity(), baseUri, PROJECTION, where, whereArgs, ORDER);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// Swap the new cursor in. (The framework will take care of closing the
// old cursor once we return.)
mAdapter.setSearchQuery(mQuery);
mAdapter.swapCursor(data);
mStickyList.setAdapter(mAdapter);
// this view is made visible if no data is available
mStickyList.setEmptyView(getActivity().findViewById(R.id.key_list_empty));
// end action mode, if any
if (mActionMode != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mActionMode.finish();
}
}
// The list should now be shown.
if (isResumed()) {
setContentShown(true);
} else {
setContentShownNoAnimation(true);
}
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
// This is called when the last Cursor provided to onLoadFinished()
// above is about to be closed. We need to make sure we are no
// longer using it.
mAdapter.swapCursor(null);
}
/**
* On click on item, start key view activity
*/
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
Intent viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
viewIntent.setData(
KeyRings.buildGenericKeyRingUri(mAdapter.getMasterKeyId(position)));
startActivity(viewIntent);
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
protected void encrypt(ActionMode mode, long[] masterKeyIds) {
Intent intent = new Intent(getActivity(), EncryptFilesActivity.class);
intent.setAction(EncryptFilesActivity.ACTION_ENCRYPT_DATA);
intent.putExtra(EncryptFilesActivity.EXTRA_ENCRYPTION_KEY_IDS, masterKeyIds);
// used instead of startActivity set actionbar based on callingPackage
startActivityForResult(intent, 0);
mode.finish();
}
/**
* Show dialog to delete key
*
* @param masterKeyIds
* @param hasSecret must contain whether the list of masterKeyIds contains a secret key or not
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void showDeleteKeyDialog(final ActionMode mode, long[] masterKeyIds, boolean hasSecret) {
// Can only work on singular secret keys
if (hasSecret && masterKeyIds.length > 1) {
Notify.showNotify(getActivity(), R.string.secret_cannot_multiple,
Notify.Style.ERROR);
return;
}
// Message is received after key is deleted
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.arg1 == DeleteKeyDialogFragment.MESSAGE_OKAY) {
Bundle data = message.getData();
if (data != null) {
DeleteResult result = data.getParcelable(DeleteResult.EXTRA_RESULT);
if (result != null) {
result.createNotify(getActivity()).show();
}
}
mode.finish();
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(returnHandler);
DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
masterKeyIds);
deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog");
}
@Override
public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
// Get the searchview
MenuItem searchItem = menu.findItem(R.id.menu_key_list_search);
mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
// Execute this when searching
mSearchView.setOnQueryTextListener(this);
View searchPlate = mSearchView.findViewById(android.support.v7.appcompat.R.id.search_plate);
searchPlate.setBackgroundResource(R.drawable.keychaintheme_searchview_holo_light);
// Erase search result without focus
MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
hideMenu = true;
getActivity().invalidateOptionsMenu();
}
// disable swipe-to-refresh
// mSwipeRefreshLayout.setIsLocked(true);
return true;
}
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
mQuery = null;
getLoaderManager().restartLoader(0, null, KeyListFragment.this);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
hideMenu = false;
getActivity().invalidateOptionsMenu();
}
// enable swipe-to-refresh
// mSwipeRefreshLayout.setIsLocked(false);
return true;
}
});
if (hideMenu) {
for (int i = 0; i < menu.size(); i++) {
menu.getItem(i).setVisible(false);
}
}
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onQueryTextSubmit(String s) {
return true;
}
@Override
public boolean onQueryTextChange(String s) {
Log.d(Constants.TAG, "onQueryTextChange s:" + s);
// Called when the action bar search text has changed. Update
// the search filter, and restart the loader to do a new query
// with this filter.
// If the nav drawer is opened, onQueryTextChange("") is executed.
// This hack prevents restarting the loader.
// TODO: better way to fix this?
String tmp = (mQuery == null) ? "" : mQuery;
if (!s.equals(tmp)) {
mQuery = s;
getLoaderManager().restartLoader(0, null, this);
}
return true;
}
/**
* Implements StickyListHeadersAdapter from library
*/
private class KeyListAdapter extends CursorAdapter implements StickyListHeadersAdapter {
private String mQuery;
private LayoutInflater mInflater;
private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>();
public KeyListAdapter(Context context, Cursor c, int flags) {
super(context, c, flags);
mInflater = LayoutInflater.from(context);
}
public void setSearchQuery(String query) {
mQuery = query;
}
@Override
public Cursor swapCursor(Cursor newCursor) {
return super.swapCursor(newCursor);
}
private class ItemViewHolder {
Long mMasterKeyId;
TextView mMainUserId;
TextView mMainUserIdRest;
ImageView mStatus;
View mSlinger;
ImageButton mSlingerButton;
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view = mInflater.inflate(R.layout.key_list_item, parent, false);
final ItemViewHolder holder = new ItemViewHolder();
holder.mMainUserId = (TextView) view.findViewById(R.id.key_list_item_name);
holder.mMainUserIdRest = (TextView) view.findViewById(R.id.key_list_item_email);
holder.mStatus = (ImageView) view.findViewById(R.id.key_list_item_status_icon);
holder.mSlinger = view.findViewById(R.id.key_list_item_slinger_view);
holder.mSlingerButton = (ImageButton) view.findViewById(R.id.key_list_item_slinger_button);
holder.mSlingerButton.setColorFilter(context.getResources().getColor(R.color.tertiary_text_light),
PorterDuff.Mode.SRC_IN);
view.setTag(holder);
view.findViewById(R.id.key_list_item_slinger_button).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (holder.mMasterKeyId != null) {
Intent safeSlingerIntent = new Intent(getActivity(), SafeSlingerActivity.class);
safeSlingerIntent.putExtra(SafeSlingerActivity.EXTRA_MASTER_KEY_ID, holder.mMasterKeyId);
startActivityForResult(safeSlingerIntent, 0);
}
}
});
return view;
}
/**
* Bind cursor data to the item list view
* <p/>
* NOTE: CursorAdapter already implements the ViewHolder pattern in its getView() method.
* Thus no ViewHolder is required here.
*/
@Override
public void bindView(View view, Context context, Cursor cursor) {
Highlighter highlighter = new Highlighter(context, mQuery);
ItemViewHolder h = (ItemViewHolder) view.getTag();
{ // set name and stuff, common to both key types
String userId = cursor.getString(INDEX_USER_ID);
String[] userIdSplit = KeyRing.splitUserId(userId);
if (userIdSplit[0] != null) {
h.mMainUserId.setText(highlighter.highlight(userIdSplit[0]));
} else {
h.mMainUserId.setText(R.string.user_id_no_name);
}
if (userIdSplit[1] != null) {
h.mMainUserIdRest.setText(highlighter.highlight(userIdSplit[1]));
h.mMainUserIdRest.setVisibility(View.VISIBLE);
} else {
h.mMainUserIdRest.setVisibility(View.GONE);
}
}
{ // set edit button and status, specific by key type
long masterKeyId = cursor.getLong(INDEX_MASTER_KEY_ID);
boolean isSecret = cursor.getInt(INDEX_HAS_ANY_SECRET) != 0;
boolean isRevoked = cursor.getInt(INDEX_IS_REVOKED) > 0;
boolean isExpired = !cursor.isNull(INDEX_EXPIRY)
&& new Date(cursor.getLong(INDEX_EXPIRY) * 1000).before(new Date());
boolean isVerified = cursor.getInt(INDEX_VERIFIED) > 0;
h.mMasterKeyId = masterKeyId;
// Note: order is important!
if (isRevoked) {
KeyFormattingUtils.setStatusImage(getActivity(), h.mStatus, null, KeyFormattingUtils.STATE_REVOKED, true);
h.mStatus.setVisibility(View.VISIBLE);
h.mSlinger.setVisibility(View.GONE);
h.mMainUserId.setTextColor(context.getResources().getColor(R.color.bg_gray));
h.mMainUserIdRest.setTextColor(context.getResources().getColor(R.color.bg_gray));
} else if (isExpired) {
KeyFormattingUtils.setStatusImage(getActivity(), h.mStatus, null, KeyFormattingUtils.STATE_EXPIRED, true);
h.mStatus.setVisibility(View.VISIBLE);
h.mSlinger.setVisibility(View.GONE);
h.mMainUserId.setTextColor(context.getResources().getColor(R.color.bg_gray));
h.mMainUserIdRest.setTextColor(context.getResources().getColor(R.color.bg_gray));
} else if (isSecret) {
h.mStatus.setVisibility(View.GONE);
h.mSlinger.setVisibility(View.VISIBLE);
h.mMainUserId.setTextColor(context.getResources().getColor(R.color.black));
h.mMainUserIdRest.setTextColor(context.getResources().getColor(R.color.black));
} else {
// this is a public key - show if it's verified
if (isVerified) {
KeyFormattingUtils.setStatusImage(getActivity(), h.mStatus, KeyFormattingUtils.STATE_VERIFIED);
h.mStatus.setVisibility(View.VISIBLE);
} else {
KeyFormattingUtils.setStatusImage(getActivity(), h.mStatus, KeyFormattingUtils.STATE_UNVERIFIED);
h.mStatus.setVisibility(View.VISIBLE);
}
h.mSlinger.setVisibility(View.GONE);
h.mMainUserId.setTextColor(context.getResources().getColor(R.color.black));
h.mMainUserIdRest.setTextColor(context.getResources().getColor(R.color.black));
}
}
}
public boolean isSecretAvailable(int id) {
if (!mCursor.moveToPosition(id)) {
throw new IllegalStateException("couldn't move cursor to position " + id);
}
return mCursor.getInt(INDEX_HAS_ANY_SECRET) != 0;
}
public long getMasterKeyId(int id) {
if (!mCursor.moveToPosition(id)) {
throw new IllegalStateException("couldn't move cursor to position " + id);
}
return mCursor.getLong(INDEX_MASTER_KEY_ID);
}
/**
* Creates a new header view and binds the section headers to it. It uses the ViewHolder
* pattern. Most functionality is similar to getView() from Android's CursorAdapter.
* <p/>
* NOTE: The variables mDataValid and mCursor are available due to the super class
* CursorAdapter.
*/
@Override
public View getHeaderView(int position, View convertView, ViewGroup parent) {
HeaderViewHolder holder;
if (convertView == null) {
holder = new HeaderViewHolder();
convertView = mInflater.inflate(R.layout.key_list_header, parent, false);
holder.mText = (TextView) convertView.findViewById(R.id.stickylist_header_text);
holder.mCount = (TextView) convertView.findViewById(R.id.contacts_num);
convertView.setTag(holder);
} else {
holder = (HeaderViewHolder) convertView.getTag();
}
if (!mDataValid) {
// no data available at this point
Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
return convertView;
}
if (!mCursor.moveToPosition(position)) {
throw new IllegalStateException("couldn't move cursor to position " + position);
}
if (mCursor.getInt(KeyListFragment.INDEX_HAS_ANY_SECRET) != 0) {
{ // set contact count
int num = mCursor.getCount();
String contactsTotal = getResources().getQuantityString(R.plurals.n_keys, num, num);
holder.mCount.setText(contactsTotal);
holder.mCount.setVisibility(View.VISIBLE);
}
holder.mText.setText(convertView.getResources().getString(R.string.my_keys));
return convertView;
}
// set header text as first char in user id
String userId = mCursor.getString(KeyListFragment.INDEX_USER_ID);
String headerText = convertView.getResources().getString(R.string.user_id_no_name);
if (userId != null && userId.length() > 0) {
headerText = "" + userId.charAt(0);
}
holder.mText.setText(headerText);
holder.mCount.setVisibility(View.GONE);
return convertView;
}
/**
* Header IDs should be static, position=1 should always return the same Id that is.
*/
@Override
public long getHeaderId(int position) {
if (!mDataValid) {
// no data available at this point
Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
return -1;
}
if (!mCursor.moveToPosition(position)) {
throw new IllegalStateException("couldn't move cursor to position " + position);
}
// early breakout: all secret keys are assigned id 0
if (mCursor.getInt(KeyListFragment.INDEX_HAS_ANY_SECRET) != 0) {
return 1L;
}
// otherwise, return the first character of the name as ID
String userId = mCursor.getString(KeyListFragment.INDEX_USER_ID);
if (userId != null && userId.length() > 0) {
return Character.toUpperCase(userId.charAt(0));
} else {
return Long.MAX_VALUE;
}
}
private class HeaderViewHolder {
TextView mText;
TextView mCount;
}
/**
* -------------------------- MULTI-SELECTION METHODS --------------
*/
public void setNewSelection(int position, boolean value) {
mSelection.put(position, value);
notifyDataSetChanged();
}
public boolean isAnySecretSelected() {
for (int pos : mSelection.keySet()) {
if (mAdapter.isSecretAvailable(pos))
return true;
}
return false;
}
public long[] getCurrentSelectedMasterKeyIds() {
long[] ids = new long[mSelection.size()];
int i = 0;
// get master key ids
for (int pos : mSelection.keySet()) {
ids[i++] = mAdapter.getMasterKeyId(pos);
}
return ids;
}
public void removeSelection(int position) {
mSelection.remove(position);
notifyDataSetChanged();
}
public void clearSelection() {
mSelection.clear();
notifyDataSetChanged();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// let the adapter handle setting up the row views
View v = super.getView(position, convertView, parent);
/**
* Change color for multi-selection
*/
if (mSelection.get(position) != null) {
// selected position color
v.setBackgroundColor(parent.getResources().getColor(R.color.emphasis));
} else {
// default color
v.setBackgroundColor(Color.TRANSPARENT);
}
return v;
}
}
}
Reference in New Issue View Git Blame Copy Permalink