388 lines
14 KiB
Java
388 lines
14 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.DatabaseUtils;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.CursorLoader;
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import android.support.v4.content.Loader;
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import android.text.Editable;
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import android.text.TextUtils;
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import android.text.TextWatcher;
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import android.view.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.EditText;
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import android.widget.FrameLayout;
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import android.widget.LinearLayout;
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import android.widget.ListView;
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import android.widget.ProgressBar;
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import android.widget.TextView;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.compatibility.ListFragmentWorkaround;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
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import org.sufficientlysecure.keychain.ui.adapter.SelectKeyCursorAdapter;
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import java.util.Vector;
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public class SelectPublicKeyFragment extends ListFragmentWorkaround implements TextWatcher,
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LoaderManager.LoaderCallbacks<Cursor> {
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public static final String ARG_PRESELECTED_KEY_IDS = "preselected_key_ids";
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private SelectKeyCursorAdapter mAdapter;
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private EditText mSearchView;
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private long mSelectedMasterKeyIds[];
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private String mQuery;
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// copied from ListFragment
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static final int INTERNAL_EMPTY_ID = 0x00ff0001;
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static final int INTERNAL_PROGRESS_CONTAINER_ID = 0x00ff0002;
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static final int INTERNAL_LIST_CONTAINER_ID = 0x00ff0003;
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// added for search view
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static final int SEARCH_ID = 0x00ff0004;
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/**
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* Creates new instance of this fragment
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*/
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public static SelectPublicKeyFragment newInstance(long[] preselectedKeyIds) {
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SelectPublicKeyFragment frag = new SelectPublicKeyFragment();
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Bundle args = new Bundle();
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args.putLongArray(ARG_PRESELECTED_KEY_IDS, preselectedKeyIds);
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frag.setArguments(args);
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return frag;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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mSelectedMasterKeyIds = getArguments().getLongArray(ARG_PRESELECTED_KEY_IDS);
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}
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/**
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* Copied from ListFragment and added EditText for search on top of list.
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* We do not use a custom layout here, because this breaks the progress bar functionality
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* of ListFragment.
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*
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* @param inflater
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* @param container
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* @param savedInstanceState
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* @return
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*/
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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final Context context = getActivity();
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FrameLayout root = new FrameLayout(context);
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// ------------------------------------------------------------------
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LinearLayout pframe = new LinearLayout(context);
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pframe.setId(INTERNAL_PROGRESS_CONTAINER_ID);
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pframe.setOrientation(LinearLayout.VERTICAL);
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pframe.setVisibility(View.GONE);
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pframe.setGravity(Gravity.CENTER);
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ProgressBar progress = new ProgressBar(context, null,
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android.R.attr.progressBarStyleLarge);
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pframe.addView(progress, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
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root.addView(pframe, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
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// ------------------------------------------------------------------
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FrameLayout lframe = new FrameLayout(context);
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lframe.setId(INTERNAL_LIST_CONTAINER_ID);
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TextView tv = new TextView(getActivity());
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tv.setId(INTERNAL_EMPTY_ID);
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tv.setGravity(Gravity.CENTER);
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lframe.addView(tv, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
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// Added for search view: linearLayout, mSearchView
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LinearLayout linearLayout = new LinearLayout(context);
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linearLayout.setOrientation(LinearLayout.VERTICAL);
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mSearchView = new EditText(context);
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mSearchView.setId(SEARCH_ID);
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mSearchView.setHint(R.string.menu_search);
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mSearchView.setCompoundDrawablesWithIntrinsicBounds(
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getResources().getDrawable(R.drawable.ic_action_search), null, null, null);
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linearLayout.addView(mSearchView, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
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ListView lv = new ListView(getActivity());
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lv.setId(android.R.id.list);
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lv.setDrawSelectorOnTop(false);
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linearLayout.addView(lv, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
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lframe.addView(linearLayout, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
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root.addView(lframe, new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
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// ------------------------------------------------------------------
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root.setLayoutParams(new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
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return root;
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}
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/**
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* Define Adapter and Loader on create of Activity
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*/
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
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// Give some text to display if there is no data. In a real
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// application this would come from a resource.
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setEmptyText(getString(R.string.list_empty));
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mSearchView.addTextChangedListener(this);
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mAdapter = new SelectPublicKeyCursorAdapter(getActivity(), null, 0, getListView());
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setListAdapter(mAdapter);
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// Start out with a progress indicator.
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setListShown(false);
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// Prepare the loader. Either re-connect with an existing one,
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// or start a new one.
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getLoaderManager().initLoader(0, null, this);
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}
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/**
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* Selects items based on master key ids in list view
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*
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* @param masterKeyIds
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*/
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private void preselectMasterKeyIds(long[] masterKeyIds) {
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if (masterKeyIds != null) {
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for (int i = 0; i < getListView().getCount(); ++i) {
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long keyId = mAdapter.getMasterKeyId(i);
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for (long masterKeyId : masterKeyIds) {
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if (keyId == masterKeyId) {
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getListView().setItemChecked(i, true);
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break;
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}
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}
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}
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}
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}
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/**
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* Returns all selected master key ids
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*
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* @return
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*/
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public long[] getSelectedMasterKeyIds() {
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// mListView.getCheckedItemIds() would give the row ids of the KeyRings not the master key
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// ids!
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Vector<Long> vector = new Vector<Long>();
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for (int i = 0; i < getListView().getCount(); ++i) {
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if (getListView().isItemChecked(i)) {
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vector.add(mAdapter.getMasterKeyId(i));
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}
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}
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// convert to long array
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long[] selectedMasterKeyIds = new long[vector.size()];
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for (int i = 0; i < vector.size(); ++i) {
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selectedMasterKeyIds[i] = vector.get(i);
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}
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return selectedMasterKeyIds;
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}
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/**
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* Returns all selected user ids
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*
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* @return
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*/
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public String[] getSelectedUserIds() {
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Vector<String> userIds = new Vector<String>();
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for (int i = 0; i < getListView().getCount(); ++i) {
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if (getListView().isItemChecked(i)) {
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userIds.add(mAdapter.getUserId(i));
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}
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}
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// make empty array to not return null
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String userIdArray[] = new String[0];
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return userIds.toArray(userIdArray);
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}
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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Uri baseUri = KeyRings.buildUnifiedKeyRingsUri();
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// These are the rows that we will retrieve.
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String[] projection = new String[]{
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KeyRings._ID,
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KeyRings.MASTER_KEY_ID,
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KeyRings.USER_ID,
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KeyRings.EXPIRY,
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KeyRings.IS_REVOKED,
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KeyRings.HAS_ENCRYPT,
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};
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String inMasterKeyList = null;
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if (mSelectedMasterKeyIds != null && mSelectedMasterKeyIds.length > 0) {
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inMasterKeyList = Tables.KEYS + "." + KeyRings.MASTER_KEY_ID + " IN (";
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for (int i = 0; i < mSelectedMasterKeyIds.length; ++i) {
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if (i != 0) {
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inMasterKeyList += ", ";
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}
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inMasterKeyList += DatabaseUtils.sqlEscapeString("" + mSelectedMasterKeyIds[i]);
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}
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inMasterKeyList += ")";
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}
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String orderBy = KeyRings.USER_ID + " ASC";
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if (inMasterKeyList != null) {
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// sort by selected master keys
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orderBy = inMasterKeyList + " DESC, " + orderBy;
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}
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String where = null;
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String whereArgs[] = null;
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if (mQuery != null) {
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String[] words = mQuery.trim().split("\\s+");
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whereArgs = new String[words.length];
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for (int i = 0; i < words.length; ++i) {
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if (where == null) {
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where = "";
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} else {
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where += " AND ";
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}
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where += KeyRings.USER_ID + " LIKE ?";
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whereArgs[i] = "%" + words[i] + "%";
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}
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}
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// Now create and return a CursorLoader that will take care of
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// creating a Cursor for the data being displayed.
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return new CursorLoader(getActivity(), baseUri, projection, where, whereArgs, orderBy);
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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// Swap the new cursor in. (The framework will take care of closing the
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// old cursor once we return.)
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mAdapter.setSearchQuery(mQuery);
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mAdapter.swapCursor(data);
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// The list should now be shown.
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if (isResumed()) {
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setListShown(true);
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} else {
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setListShownNoAnimation(true);
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}
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// preselect given master keys
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preselectMasterKeyIds(mSelectedMasterKeyIds);
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) {
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// This is called when the last Cursor provided to onLoadFinished()
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// above is about to be closed. We need to make sure we are no
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// longer using it.
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mAdapter.swapCursor(null);
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}
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@Override
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public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
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}
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@Override
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public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
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}
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@Override
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public void afterTextChanged(Editable editable) {
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mQuery = !TextUtils.isEmpty(editable.toString()) ? editable.toString() : null;
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getLoaderManager().restartLoader(0, null, this);
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}
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private class SelectPublicKeyCursorAdapter extends SelectKeyCursorAdapter {
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private int mIndexHasEncrypt;
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public SelectPublicKeyCursorAdapter(Context context, Cursor c, int flags, ListView listView) {
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super(context, c, flags, listView);
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}
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@Override
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protected void initIndex(Cursor cursor) {
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super.initIndex(cursor);
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if (cursor != null) {
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mIndexHasEncrypt = cursor.getColumnIndexOrThrow(KeyRings.HAS_ENCRYPT);
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}
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}
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@Override
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public void bindView(View view, Context context, Cursor cursor) {
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super.bindView(view, context, cursor);
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ViewHolderItem h = (SelectKeyCursorAdapter.ViewHolderItem) view.getTag();
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// We care about the checkbox
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h.selected.setVisibility(View.VISIBLE);
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// the getListView works because this is not a static subclass!
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h.selected.setChecked(getListView().isItemChecked(cursor.getPosition()));
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boolean enabled = false;
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if((Boolean) h.status.getTag()) {
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// Check if key is viable for our purposes
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if (cursor.getInt(mIndexHasEncrypt) == 0) {
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h.status.setText(R.string.no_key);
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} else {
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h.status.setText(R.string.can_encrypt);
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enabled = true;
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}
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}
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h.setEnabled(enabled);
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}
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}
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}
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