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/*
* Copyright (C) 2017 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.assisteddialing;
import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build;
import android.os.Build.VERSION_CODES;
import android.preference.PreferenceManager;
import android.support.annotation.NonNull;
import android.support.annotation.VisibleForTesting;
import android.support.v4.os.BuildCompat;
import android.support.v4.os.UserManagerCompat;
import android.telephony.TelephonyManager;
import com.android.dialer.common.LogUtil;
import com.android.dialer.configprovider.ConfigProvider;
import com.android.dialer.configprovider.ConfigProviderBindings;
import com.android.dialer.strictmode.StrictModeUtils;
/**
* A Creator for AssistedDialingMediators.
*
* <p>This helps keep the dependencies required by AssistedDialingMediator for assisted dialing
* explicit.
*/
@TargetApi(VERSION_CODES.N)
public final class ConcreteCreator {
// Floor set at N due to use of Optional.
@VisibleForTesting public static final int BUILD_CODE_FLOOR = Build.VERSION_CODES.N;
// Ceiling set at O_MR1 because this feature will ship as part of the framework in P.
@VisibleForTesting public static final int BUILD_CODE_CEILING = Build.VERSION_CODES.O_MR1;
/**
* Creates a new AssistedDialingMediator
*
* @param telephonyManager The telephony manager used to determine user location.
* @param context The context used to determine whether or not a provided number is an emergency
* number.
* @return An AssistedDialingMediator
*/
public static AssistedDialingMediator createNewAssistedDialingMediator(
@NonNull TelephonyManager telephonyManager, @NonNull Context context) {
ConfigProvider configProvider = ConfigProviderBindings.get(context);
if (telephonyManager == null) {
LogUtil.i(
"ConcreteCreator.createNewAssistedDialingMediator", "provided TelephonyManager was null");
throw new NullPointerException("Provided TelephonyManager was null");
}
if (context == null) {
LogUtil.i("ConcreteCreator.createNewAssistedDialingMediator", "provided context was null");
throw new NullPointerException("Provided context was null");
}
if (!UserManagerCompat.isUserUnlocked(context)) {
// To avoid any issues reading preferences, we disable the feature when the user is in a
// locked state.
LogUtil.i("ConcreteCreator.createNewAssistedDialingMediator", "user is locked");
return new AssistedDialingMediatorStub();
}
if (!isAssistedDialingEnabled(configProvider)) {
LogUtil.i("ConcreteCreator.createNewAssistedDialingMediator", "feature not enabled");
return new AssistedDialingMediatorStub();
}
if (!PreferenceManager.getDefaultSharedPreferences(context)
.getBoolean(context.getString(R.string.assisted_dialing_setting_toggle_key), true)) {
LogUtil.i("ConcreteCreator.createNewAssistedDialingMediator", "disabled by local setting");
return new AssistedDialingMediatorStub();
}
Constraints constraints = new Constraints(context, getCountryCodeProvider(configProvider));
return new AssistedDialingMediatorImpl(
new LocationDetector(
telephonyManager,
StrictModeUtils.bypass(
() ->
PreferenceManager.getDefaultSharedPreferences(context)
.getString(
context.getString(R.string.assisted_dialing_setting_cc_key), null))),
new NumberTransformer(constraints));
}
/** Returns a boolean indicating whether or not the assisted dialing feature is enabled. */
public static boolean isAssistedDialingEnabled(@NonNull ConfigProvider configProvider) {
if (configProvider == null) {
LogUtil.i("ConcreteCreator.isAssistedDialingEnabled", "provided configProvider was null");
throw new NullPointerException("Provided configProvider was null");
}
return (Build.VERSION.SDK_INT >= BUILD_CODE_FLOOR
&& Build.VERSION.SDK_INT <= BUILD_CODE_CEILING
&& !BuildCompat.isAtLeastP())
&& configProvider.getBoolean("assisted_dialing_enabled", false);
}
/**
* Returns a CountryCodeProvider responsible for providing countries eligible for assisted Dialing
*/
public static CountryCodeProvider getCountryCodeProvider(ConfigProvider configProvider) {
if (configProvider == null) {
LogUtil.i("ConcreteCreator.getCountryCodeProvider", "provided configProvider was null");
throw new NullPointerException("Provided configProvider was null");
}
return new CountryCodeProvider(configProvider);
}
}
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