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/*
* Copyright (C) 2009 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.contacts.common;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.provider.ContactsContract.CommonDataKinds.Im;
import android.provider.ContactsContract.DisplayPhoto;
import android.telephony.PhoneNumberUtils;
import android.text.TextUtils;
import com.android.contacts.common.model.account.AccountWithDataSet;
import com.android.contacts.common.test.NeededForTesting;
import com.android.contacts.common.model.AccountTypeManager;
import java.util.List;
public class ContactsUtils {
private static final String TAG = "ContactsUtils";
private static int sThumbnailSize = -1;
// TODO find a proper place for the canonical version of these
public interface ProviderNames {
String YAHOO = "Yahoo";
String GTALK = "GTalk";
String MSN = "MSN";
String ICQ = "ICQ";
String AIM = "AIM";
String XMPP = "XMPP";
String JABBER = "JABBER";
String SKYPE = "SKYPE";
String QQ = "QQ";
}
/**
* This looks up the provider name defined in
* ProviderNames from the predefined IM protocol id.
* This is used for interacting with the IM application.
*
* @param protocol the protocol ID
* @return the provider name the IM app uses for the given protocol, or null if no
* provider is defined for the given protocol
* @hide
*/
public static String lookupProviderNameFromId(int protocol) {
switch (protocol) {
case Im.PROTOCOL_GOOGLE_TALK:
return ProviderNames.GTALK;
case Im.PROTOCOL_AIM:
return ProviderNames.AIM;
case Im.PROTOCOL_MSN:
return ProviderNames.MSN;
case Im.PROTOCOL_YAHOO:
return ProviderNames.YAHOO;
case Im.PROTOCOL_ICQ:
return ProviderNames.ICQ;
case Im.PROTOCOL_JABBER:
return ProviderNames.JABBER;
case Im.PROTOCOL_SKYPE:
return ProviderNames.SKYPE;
case Im.PROTOCOL_QQ:
return ProviderNames.QQ;
}
return null;
}
/**
* Test if the given {@link CharSequence} contains any graphic characters,
* first checking {@link TextUtils#isEmpty(CharSequence)} to handle null.
*/
public static boolean isGraphic(CharSequence str) {
return !TextUtils.isEmpty(str) && TextUtils.isGraphic(str);
}
/**
* Returns true if two objects are considered equal. Two null references are equal here.
*/
@NeededForTesting
public static boolean areObjectsEqual(Object a, Object b) {
return a == b || (a != null && a.equals(b));
}
/**
* Returns true if two {@link Intent}s are both null, or have the same action.
*/
public static final boolean areIntentActionEqual(Intent a, Intent b) {
if (a == b) {
return true;
}
if (a == null || b == null) {
return false;
}
return TextUtils.equals(a.getAction(), b.getAction());
}
public static boolean areContactWritableAccountsAvailable(Context context) {
final List<AccountWithDataSet> accounts =
AccountTypeManager.getInstance(context).getAccounts(true /* writeable */);
return !accounts.isEmpty();
}
public static boolean areGroupWritableAccountsAvailable(Context context) {
final List<AccountWithDataSet> accounts =
AccountTypeManager.getInstance(context).getGroupWritableAccounts();
return !accounts.isEmpty();
}
/**
* Returns the size (width and height) of thumbnail pictures as configured in the provider. This
* can safely be called from the UI thread, as the provider can serve this without performing
* a database access
*/
public static int getThumbnailSize(Context context) {
if (sThumbnailSize == -1) {
final Cursor c = context.getContentResolver().query(
DisplayPhoto.CONTENT_MAX_DIMENSIONS_URI,
new String[] { DisplayPhoto.THUMBNAIL_MAX_DIM }, null, null, null);
try {
c.moveToFirst();
sThumbnailSize = c.getInt(0);
} finally {
c.close();
}
}
return sThumbnailSize;
}
}
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