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/*
* Copyright (C) 2011 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.calllog;
import android.database.Cursor;
import android.provider.CallLog.Calls;
import android.telephony.PhoneNumberUtils;
import com.android.common.widget.GroupingListAdapter;
import com.google.common.annotations.VisibleForTesting;
/**
* Groups together calls in the call log.
* <p>
* This class is meant to be used in conjunction with {@link GroupingListAdapter}.
*/
public class CallLogGroupBuilder {
public interface GroupCreator {
public void addGroup(int cursorPosition, int size, boolean expanded);
}
/** The object on which the groups are created. */
private final GroupCreator mGroupCreator;
public CallLogGroupBuilder(GroupCreator groupCreator) {
mGroupCreator = groupCreator;
}
/**
* Finds all groups of adjacent entries in the call log which should be grouped together and
* calls {@link GroupCreator#addGroup(int, int, boolean)} on {@link #mGroupCreator} for each of
* them.
* <p>
* For entries that are not grouped with others, we do not need to create a group of size one.
* <p>
* It assumes that the cursor will not change during its execution.
*
* @see GroupingListAdapter#addGroups(Cursor)
*/
public void addGroups(Cursor cursor) {
final int count = cursor.getCount();
if (count == 0) {
return;
}
int currentGroupSize = 1;
cursor.moveToFirst();
// The number of the first entry in the group.
String firstNumber = cursor.getString(CallLogQuery.NUMBER);
// This is the type of the first call in the group.
int firstCallType = cursor.getInt(CallLogQuery.CALL_TYPE);
while (cursor.moveToNext()) {
// The number of the current row in the cursor.
final String currentNumber = cursor.getString(CallLogQuery.NUMBER);
final int callType = cursor.getInt(CallLogQuery.CALL_TYPE);
final boolean sameNumber = equalNumbers(firstNumber, currentNumber);
final boolean shouldGroup;
if (!sameNumber) {
// Should only group with calls from the same number.
shouldGroup = false;
} else if (firstCallType == Calls.VOICEMAIL_TYPE) {
// never group voicemail.
shouldGroup = false;
} else {
// Incoming, outgoing, and missed calls group together.
shouldGroup = (callType == Calls.INCOMING_TYPE || callType == Calls.OUTGOING_TYPE ||
callType == Calls.MISSED_TYPE);
}
if (shouldGroup) {
// Increment the size of the group to include the current call, but do not create
// the group until we find a call that does not match.
currentGroupSize++;
} else {
// Create a group for the previous set of calls, excluding the current one, but do
// not create a group for a single call.
if (currentGroupSize > 1) {
addGroup(cursor.getPosition() - currentGroupSize, currentGroupSize);
}
// Start a new group; it will include at least the current call.
currentGroupSize = 1;
// The current entry is now the first in the group.
firstNumber = currentNumber;
firstCallType = callType;
}
}
// If the last set of calls at the end of the call log was itself a group, create it now.
if (currentGroupSize > 1) {
addGroup(count - currentGroupSize, currentGroupSize);
}
}
/**
* Creates a group of items in the cursor.
* <p>
* The group is always unexpanded.
*
* @see CallLogAdapter#addGroup(int, int, boolean)
*/
private void addGroup(int cursorPosition, int size) {
mGroupCreator.addGroup(cursorPosition, size, false);
}
@VisibleForTesting
boolean equalNumbers(String number1, String number2) {
if (PhoneNumberUtils.isUriNumber(number1) || PhoneNumberUtils.isUriNumber(number2)) {
return compareSipAddresses(number1, number2);
} else {
return PhoneNumberUtils.compare(number1, number2);
}
}
@VisibleForTesting
boolean compareSipAddresses(String number1, String number2) {
if (number1 == null || number2 == null) return number1 == number2;
int index1 = number1.indexOf('@');
final String userinfo1;
final String rest1;
if (index1 != -1) {
userinfo1 = number1.substring(0, index1);
rest1 = number1.substring(index1);
} else {
userinfo1 = number1;
rest1 = "";
}
int index2 = number2.indexOf('@');
final String userinfo2;
final String rest2;
if (index2 != -1) {
userinfo2 = number2.substring(0, index2);
rest2 = number2.substring(index2);
} else {
userinfo2 = number2;
rest2 = "";
}
return userinfo1.equals(userinfo2) && rest1.equalsIgnoreCase(rest2);
}
}
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