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/*
* Copyright (C) 2015 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.util;
import android.annotation.SuppressLint;
import android.content.Context;
import android.net.Uri;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.telecom.TelecomManager;
import com.android.dialer.common.LogUtil;
import com.android.dialer.phonenumberutil.PhoneNumberHelper;
import java.util.ArrayList;
import java.util.List;
/** Utilities related to calls that can be used by non system apps. */
public class CallUtil {
/** Indicates that the video calling is not available. */
public static final int VIDEO_CALLING_DISABLED = 0;
/** Indicates that video calling is enabled, regardless of presence status. */
public static final int VIDEO_CALLING_ENABLED = 1;
/**
* Indicates that video calling is enabled, but the availability of video call affordances is
* determined by the presence status associated with contacts.
*/
public static final int VIDEO_CALLING_PRESENCE = 2;
private static boolean hasInitializedIsVideoEnabledState;
private static boolean cachedIsVideoEnabledState;
/** Return Uri with an appropriate scheme, accepting both SIP and usual phone call numbers. */
public static Uri getCallUri(String number) {
if (PhoneNumberHelper.isUriNumber(number)) {
return Uri.fromParts(PhoneAccount.SCHEME_SIP, number, null);
}
return Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null);
}
/**
* Determines if video calling is available, and if so whether presence checking is available as
* well.
*
* <p>Returns a bitmask with {@link #VIDEO_CALLING_ENABLED} to indicate that video calling is
* available, and {@link #VIDEO_CALLING_PRESENCE} if presence indication is also available.
*
* @param context The context
* @return A bit-mask describing the current video capabilities.
*/
@SuppressLint("MissingPermission")
public static int getVideoCallingAvailability(Context context) {
if (!PermissionsUtil.hasPermission(context, android.Manifest.permission.READ_PHONE_STATE)) {
return VIDEO_CALLING_DISABLED;
}
TelecomManager telecommMgr = (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
if (telecommMgr == null) {
return VIDEO_CALLING_DISABLED;
}
List<PhoneAccountHandle> accountHandles = telecommMgr.getCallCapablePhoneAccounts();
for (PhoneAccountHandle accountHandle : accountHandles) {
PhoneAccount account = telecommMgr.getPhoneAccount(accountHandle);
if (account != null) {
if (account.hasCapabilities(PhoneAccount.CAPABILITY_VIDEO_CALLING)) {
int videoCapabilities = VIDEO_CALLING_ENABLED;
if (account.hasCapabilities(PhoneAccount.CAPABILITY_VIDEO_CALLING_RELIES_ON_PRESENCE)) {
videoCapabilities |= VIDEO_CALLING_PRESENCE;
}
return videoCapabilities;
}
}
}
return VIDEO_CALLING_DISABLED;
}
/**
* Returns a list of phone accounts that are able to call to numbers with the supplied scheme
*/
public static List<PhoneAccount> getCallCapablePhoneAccounts(Context context, String scheme) {
if (!PermissionsUtil.hasPermission(context, android.Manifest.permission.READ_PHONE_STATE)) {
return null;
}
TelecomManager tm = (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
final ArrayList<PhoneAccount> accounts = new ArrayList<>();
for (PhoneAccountHandle handle : tm.getCallCapablePhoneAccounts()) {
final PhoneAccount account = tm.getPhoneAccount(handle);
if (account != null && account.supportsUriScheme(scheme)) {
accounts.add(account);
}
}
return accounts;
}
/**
* Determines if one of the call capable phone accounts defined supports video calling.
*
* @param context The context.
* @return {@code true} if one of the call capable phone accounts supports video calling, {@code
* false} otherwise.
*/
public static boolean isVideoEnabled(Context context) {
boolean isVideoEnabled = (getVideoCallingAvailability(context) & VIDEO_CALLING_ENABLED) != 0;
// Log everytime the video enabled state changes.
if (!hasInitializedIsVideoEnabledState) {
LogUtil.i("CallUtil.isVideoEnabled", "isVideoEnabled: " + isVideoEnabled);
hasInitializedIsVideoEnabledState = true;
cachedIsVideoEnabledState = isVideoEnabled;
} else if (cachedIsVideoEnabledState != isVideoEnabled) {
LogUtil.i(
"CallUtil.isVideoEnabled",
"isVideoEnabled changed from %b to %b",
cachedIsVideoEnabledState,
isVideoEnabled);
cachedIsVideoEnabledState = isVideoEnabled;
}
return isVideoEnabled;
}
/**
* Determines if one of the call capable phone accounts defined supports calling with a subject
* specified.
*
* @param context The context.
* @return {@code true} if one of the call capable phone accounts supports calling with a subject
* specified, {@code false} otherwise.
*/
@SuppressLint("MissingPermission")
public static boolean isCallWithSubjectSupported(Context context) {
if (!PermissionsUtil.hasPermission(context, android.Manifest.permission.READ_PHONE_STATE)) {
return false;
}
TelecomManager telecommMgr = (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
if (telecommMgr == null) {
return false;
}
List<PhoneAccountHandle> accountHandles = telecommMgr.getCallCapablePhoneAccounts();
for (PhoneAccountHandle accountHandle : accountHandles) {
PhoneAccount account = telecommMgr.getPhoneAccount(accountHandle);
if (account != null && account.hasCapabilities(PhoneAccount.CAPABILITY_CALL_SUBJECT)) {
return true;
}
}
return false;
}
}
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