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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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 com.android.dialer.dialpad;
import static com.android.dialer.dialpad.SmartDialController.LOG_TAG;
import android.content.Context;
import android.os.AsyncTask;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.telephony.PhoneNumberUtils;
import com.android.contacts.common.preference.ContactsPreferences;
import com.android.contacts.common.util.StopWatch;
import com.android.dialer.database.DialerDatabaseHelper;
import com.android.dialer.database.DialerDatabaseHelper.ContactNumber;
import com.google.common.collect.Lists;
import java.util.ArrayList;
import java.util.List;
/**
* This task searches through the provided cache to return the top 3 contacts(ranked by confidence)
* that match the query, then passes it back to the {@link SmartDialLoaderCallback} through a
* callback function.
*/
public class SmartDialLoaderTask extends AsyncTask<String, Integer, List<SmartDialEntry>> {
public interface SmartDialLoaderCallback {
void setSmartDialAdapterEntries(List<SmartDialEntry> list, String query);
}
static private final boolean DEBUG = false;
private final SmartDialLoaderCallback mCallback;
private final DialerDatabaseHelper mDialerDatabaseHelper;
private final String mQuery;
private final SmartDialNameMatcher mNameMatcher;
public SmartDialLoaderTask(SmartDialLoaderCallback callback, String query, Context context) {
this.mCallback = callback;
mDialerDatabaseHelper = DialerDatabaseHelper.getInstance(context);
this.mQuery = query;
this.mNameMatcher = new SmartDialNameMatcher(PhoneNumberUtils.normalizeNumber(query),
SmartDialPrefix.getMap());
}
@Override
protected List<SmartDialEntry> doInBackground(String... params) {
return getContactMatches();
}
@Override
protected void onPostExecute(List<SmartDialEntry> result) {
if (mCallback != null) {
mCallback.setSmartDialAdapterEntries(result, mQuery);
}
}
/**
* Loads top visible contacts with phone numbers and check if their display names match the
* query.
*/
private ArrayList<SmartDialEntry> getContactMatches() {
final StopWatch stopWatch = DEBUG ? StopWatch.start("Start Match") : null;
final ArrayList<ContactNumber> allMatches = mDialerDatabaseHelper.getLooseMatches(mQuery,
mNameMatcher);
if (DEBUG) {
stopWatch.lap("Find matches");
}
final ArrayList<SmartDialEntry> candidates = Lists.newArrayList();
for (ContactNumber contact : allMatches) {
final boolean matches = mNameMatcher.matches(contact.displayName);
candidates.add(new SmartDialEntry(
contact.displayName,
Contacts.getLookupUri(contact.id, contact.lookupKey),
contact.phoneNumber,
mNameMatcher.getMatchPositions(),
mNameMatcher.matchesNumber(contact.phoneNumber, mNameMatcher.getQuery())
));
}
if (DEBUG) {
stopWatch.stopAndLog(LOG_TAG + " Match Complete", 0);
}
return candidates;
}
}
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