/*
* Copyright (C) 2006 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.internal.telephony;
import android.content.Context;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.provider.Contacts;
import android.provider.Contacts.People;
import android.provider.Contacts.Phones;
import android.text.TextUtils;
import android.telephony.TelephonyManager;
import android.telephony.PhoneNumberUtils;
import android.util.Config;
import android.util.Log;
/**
* Looks up caller information for the given phone number.
*
* {@hide}
*/
public class CallerInfo {
private static final String TAG = "CallerInfo";
public static final String UNKNOWN_NUMBER = "-1";
public static final String PRIVATE_NUMBER = "-2";
public static final String PAYPHONE_NUMBER = "-3";
/**
* Please note that, any one of these member variables can be null,
* and any accesses to them should be prepared to handle such a case.
*
* Also, it is implied that phoneNumber is more often populated than
* name is, (think of calls being dialed/received using numbers where
* names are not known to the device), so phoneNumber should serve as
* a dependable fallback when name is unavailable.
*
* One other detail here is that this CallerInfo object reflects
* information found on a connection, it is an OUTPUT that serves
* mainly to display information to the user. In no way is this object
* used as input to make a connection, so we can choose to display
* whatever human-readable text makes sense to the user for a
* connection. This is especially relevant for the phone number field,
* since it is the one field that is most likely exposed to the user.
*
* As an example:
* 1. User dials "911"
* 2. Device recognizes that this is an emergency number
* 3. We use the "Emergency Number" string instead of "911" in the
* phoneNumber field.
*
* What we're really doing here is treating phoneNumber as an essential
* field here, NOT name. We're NOT always guaranteed to have a name
* for a connection, but the number should be displayable.
*/
public String name;
public String phoneNumber;
public String phoneLabel;
/* Split up the phoneLabel into number type and label name */
public int numberType;
public String numberLabel;
public int photoResource;
public long person_id;
public boolean needUpdate;
public Uri contactRefUri;
// fields to hold individual contact preference data,
// including the send to voicemail flag and the ringtone
// uri reference.
public Uri contactRingtoneUri;
public boolean shouldSendToVoicemail;
/**
* Drawable representing the caller image. This is essentially
* a cache for the image data tied into the connection /
* callerinfo object. The isCachedPhotoCurrent flag indicates
* if the image data needs to be reloaded.
*/
public Drawable cachedPhoto;
public boolean isCachedPhotoCurrent;
// Don't keep checking VM if it's going to throw an exception for this proc.
private static boolean sSkipVmCheck = false;
public CallerInfo() {
}
/**
* getCallerInfo given a Cursor.
* @param context the context used to retrieve string constants
* @param contactRef the URI to attach to this CallerInfo object
* @param cursor the first object in the cursor is used to build the CallerInfo object.
* @return the CallerInfo which contains the caller id for the given
* number. The returned CallerInfo is null if no number is supplied.
*/
public static CallerInfo getCallerInfo(Context context, Uri contactRef, Cursor cursor) {
CallerInfo info = new CallerInfo();
info.photoResource = 0;
info.phoneLabel = null;
info.numberType = 0;
info.numberLabel = null;
info.cachedPhoto = null;
info.isCachedPhotoCurrent = false;
if (Config.LOGV) Log.v(TAG, "construct callerInfo from cursor");
if (cursor != null) {
if (cursor.moveToFirst()) {
int columnIndex;
// Look for the name
columnIndex = cursor.getColumnIndex(People.NAME);
if (columnIndex != -1) {
info.name = cursor.getString(columnIndex);
}
// Look for the number
columnIndex = cursor.getColumnIndex(Phones.NUMBER);
if (columnIndex != -1) {
info.phoneNumber = cursor.getString(columnIndex);
}
// Look for the label/type combo
columnIndex = cursor.getColumnIndex(Phones.LABEL);
if (columnIndex != -1) {
int typeColumnIndex = cursor.getColumnIndex(Phones.TYPE);
if (typeColumnIndex != -1) {
info.numberType = cursor.getInt(typeColumnIndex);
info.numberLabel = cursor.getString(columnIndex);
info.phoneLabel = Contacts.Phones.getDisplayLabel(context,
info.numberType, info.numberLabel)
.toString();
}
}
// Look for the person ID
columnIndex = cursor.getColumnIndex(Phones.PERSON_ID);
if (columnIndex != -1) {
info.person_id = cursor.getLong(columnIndex);
} else {
columnIndex = cursor.getColumnIndex(People._ID);
if (columnIndex != -1) {
info.person_id = cursor.getLong(columnIndex);
}
}
// look for the custom ringtone, create from the string stored
// in the database.
columnIndex = cursor.getColumnIndex(People.CUSTOM_RINGTONE);
if ((columnIndex != -1) && (cursor.getString(columnIndex) != null)) {
info.contactRingtoneUri = Uri.parse(cursor.getString(columnIndex));
} else {
info.contactRingtoneUri = null;
}
// look for the send to voicemail flag, set it to true only
// under certain circumstances.
columnIndex = cursor.getColumnIndex(People.SEND_TO_VOICEMAIL);
info.shouldSendToVoicemail = (columnIndex != -1) &&
((cursor.getInt(columnIndex)) == 1);
}
cursor.close();
}
info.needUpdate = false;
info.name = normalize(info.name);
info.contactRefUri = contactRef;
return info;
}
/**
* getCallerInfo given a URI, look up in the call-log database
* for the uri unique key.
* @param context the context used to get the ContentResolver
* @param contactRef the URI used to lookup caller id
* @return the CallerInfo which contains the caller id for the given
* number. The returned CallerInfo is null if no number is supplied.
*/
public static CallerInfo getCallerInfo(Context context, Uri contactRef) {
return getCallerInfo(context, contactRef,
context.getContentResolver().query(contactRef, null, null, null, null));
}
/**
* getCallerInfo given a phone number, look up in the call-log database
* for the matching caller id info.
* @param context the context used to get the ContentResolver
* @param number the phone number used to lookup caller id
* @return the CallerInfo which contains the caller id for the given
* number. The returned CallerInfo is null if no number is supplied. If
* a matching number is not found, then a generic caller info is returned,
* with all relevant fields empty or null.
*/
public static CallerInfo getCallerInfo(Context context, String number) {
if (TextUtils.isEmpty(number)) {
return null;
} else {
// Change the callerInfo number ONLY if it is an emergency number
// or if it is the voicemail number. If it is either, take a
// shortcut and skip the query.
if (PhoneNumberUtils.isEmergencyNumber(number)) {
CallerInfo ci = new CallerInfo();
// Note we're setting the phone number here (refer to javadoc
// comments at the top of CallerInfo class).
ci.phoneNumber = context.getString(
com.android.internal.R.string.emergency_call_dialog_number_for_display);
return ci;
} else {
try {
if (!sSkipVmCheck && PhoneNumberUtils.compare(number,
TelephonyManager.getDefault().getVoiceMailNumber())) {
CallerInfo ci = new CallerInfo();
// Note we're setting the phone number here (refer to javadoc
// comments at the top of CallerInfo class).
ci.phoneNumber = TelephonyManager.getDefault().getVoiceMailAlphaTag();
// TODO: FIND ANOTHER ICON
//info.photoResource = android.R.drawable.badge_voicemail;
return ci;
}
} catch (SecurityException ex) {
// Don't crash if this process doesn't have permission to
// retrieve VM number. It's still allowed to look up caller info.
// But don't try it again.
sSkipVmCheck = true;
}
}
}
Uri contactUri = Uri.withAppendedPath(Contacts.Phones.CONTENT_FILTER_URL,
Uri.encode(number));
CallerInfo info = getCallerInfo(context, contactUri);
// if no query results were returned with a viable number,
// fill in the original number value we used to query with.
if (TextUtils.isEmpty(info.phoneNumber)) {
info.phoneNumber = number;
}
return info;
}
/**
* getCallerId: a convenience method to get the caller id for a given
* number.
*
* @param context the context used to get the ContentResolver.
* @param number a phone number.
* @return if the number belongs to a contact, the contact's name is
* returned; otherwise, the number itself is returned.
*
* TODO NOTE: This MAY need to refer to the Asynchronous Query API
* [startQuery()], instead of getCallerInfo, but since it looks like
* it is only being used by the provider calls in the messaging app:
* 1. android.provider.Telephony.Mms.getDisplayAddress()
* 2. android.provider.Telephony.Sms.getDisplayAddress()
* We may not need to make the change.
*/
public static String getCallerId(Context context, String number) {
CallerInfo info = getCallerInfo(context, number);
String callerID = null;
if (info != null) {
String name = info.name;
if (!TextUtils.isEmpty(name)) {
callerID = name;
} else {
callerID = number;
}
}
return callerID;
}
private static String normalize(String s) {
if (s == null || s.length() > 0) {
return s;
} else {
return null;
}
}
}
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