SelectPublicKeyListActivity.java

/*
 * 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.util.Vector;

import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

public class SelectPublicKeyListActivity extends BaseActivity {
    protected ListView mList;
    protected SelectPublicKeyListAdapter mListAdapter;
    protected View mFilterLayout;
    protected Button mClearFilterButton;
    protected TextView mFilterInfo;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.select_public_key);

        setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);

        mList = (ListView) findViewById(R.id.list);
        // needed in Android 1.5, where the XML attribute gets ignored
        mList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

        Button okButton = (Button) findViewById(R.id.btn_ok);
        okButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                okClicked();
            }
        });

        Button cancelButton = (Button) findViewById(R.id.btn_cancel);
        cancelButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                cancelClicked();
            }
        });

        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());
    }

    @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;
            }
        }

        long selectedKeyIds[] = null;
        selectedKeyIds = intent.getLongArrayExtra(Apg.EXTRA_SELECTION);

        if (selectedKeyIds == null) {
            Vector<Long> vector = new Vector<Long>();
            for (int i = 0; i < mList.getCount(); ++i) {
                if (mList.isItemChecked(i)) {
                    vector.add(mList.getItemIdAtPosition(i));
                }
            }
            selectedKeyIds = new long[vector.size()];
            for (int i = 0; i < vector.size(); ++i) {
                selectedKeyIds[i] = vector.get(i);
            }
        }

        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 SelectPublicKeyListAdapter(this, mList, searchString, selectedKeyIds);
        mList.setAdapter(mListAdapter);

        if (selectedKeyIds != null) {
            for (int i = 0; i < mListAdapter.getCount(); ++i) {
                long keyId = mListAdapter.getItemId(i);
                for (int j = 0; j < selectedKeyIds.length; ++j) {
                    if (keyId == selectedKeyIds[j]) {
                        mList.setItemChecked(i, true);
                        break;
                    }
                }
            }
        }
    }

    private void cancelClicked() {
        setResult(RESULT_CANCELED, null);
        finish();
    }

    private void okClicked() {
        Intent data = new Intent();
        Vector<Long> keys = new Vector<Long>();
        Vector<String> userIds = new Vector<String>();
        for (int i = 0; i < mList.getCount(); ++i) {
            if (mList.isItemChecked(i)) {
                keys.add(mList.getItemIdAtPosition(i));
                userIds.add((String) mList.getItemAtPosition(i));
            }
        }
        long selectedKeyIds[] = new long[keys.size()];
        for (int i = 0; i < keys.size(); ++i) {
            selectedKeyIds[i] = keys.get(i);
        }
        String userIdArray[] = new String[0];
        data.putExtra(Apg.EXTRA_SELECTION, selectedKeyIds);
        data.putExtra(Apg.EXTRA_USER_IDS, userIds.toArray(userIdArray));
        setResult(RESULT_OK, data);
        finish();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        menu.add(0, Id.menu.option.search, 0, R.string.menu_search)
                .setIcon(android.R.drawable.ic_menu_search);
        return true;
    }
}