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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.settings.location;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.location.SettingInjectorService;
import android.os.UserHandle;
import android.support.annotation.VisibleForTesting;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceCategory;
import android.support.v7.preference.PreferenceScreen;
import android.util.Log;
import com.android.settings.widget.RestrictedAppPreference;
import com.android.settingslib.core.lifecycle.Lifecycle;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnPause;
import com.android.settingslib.core.lifecycle.events.OnResume;
import java.util.List;
public class LocationServicePreferenceController extends LocationBasePreferenceController
implements LifecycleObserver, OnResume, OnPause {
private static final String TAG = "LocationServicePrefCtrl";
/** Key for preference category "Location services" */
private static final String KEY_LOCATION_SERVICES = "location_services";
@VisibleForTesting
static final IntentFilter INTENT_FILTER_INJECTED_SETTING_CHANGED =
new IntentFilter(SettingInjectorService.ACTION_INJECTED_SETTING_CHANGED);
private PreferenceCategory mCategoryLocationServices;
private final LocationSettings mFragment;
private final SettingsInjector mInjector;
/** Receives UPDATE_INTENT */
@VisibleForTesting
BroadcastReceiver mInjectedSettingsReceiver;
public LocationServicePreferenceController(Context context, LocationSettings fragment,
Lifecycle lifecycle) {
this(context, fragment, lifecycle, new SettingsInjector(context));
}
@VisibleForTesting
LocationServicePreferenceController(Context context, LocationSettings fragment,
Lifecycle lifecycle, SettingsInjector injector) {
super(context, lifecycle);
mFragment = fragment;
mInjector = injector;
if (lifecycle != null) {
lifecycle.addObserver(this);
}
}
@Override
public String getPreferenceKey() {
return KEY_LOCATION_SERVICES;
}
@Override
public boolean isAvailable() {
// If managed profile has lock-down on location access then its injected location services
// must not be shown.
return mInjector.hasInjectedSettings(mLocationEnabler.isManagedProfileRestrictedByBase()
? UserHandle.myUserId() : UserHandle.USER_CURRENT);
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mCategoryLocationServices =
(PreferenceCategory) screen.findPreference(KEY_LOCATION_SERVICES);
}
@Override
public void updateState(Preference preference) {
mCategoryLocationServices.removeAll();
final List<Preference> prefs = getLocationServices();
for (Preference pref : prefs) {
if (pref instanceof RestrictedAppPreference) {
((RestrictedAppPreference) pref).checkRestrictionAndSetDisabled();
}
}
LocationSettings.addPreferencesSorted(prefs, mCategoryLocationServices);
}
@Override
public void onLocationModeChanged(int mode, boolean restricted) {
// As a safety measure, also reloads on location mode change to ensure the settings are
// up-to-date even if an affected app doesn't send the setting changed broadcast.
mInjector.reloadStatusMessages();
}
@Override
public void onResume() {
if (mInjectedSettingsReceiver == null) {
mInjectedSettingsReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "Received settings change intent: " + intent);
}
mInjector.reloadStatusMessages();
}
};
}
mContext.registerReceiver(
mInjectedSettingsReceiver, INTENT_FILTER_INJECTED_SETTING_CHANGED);
}
@Override
public void onPause() {
mContext.unregisterReceiver(mInjectedSettingsReceiver);
}
private List<Preference> getLocationServices() {
// If location access is locked down by device policy then we only show injected settings
// for the primary profile.
return mInjector.getInjectedSettings(mFragment.getPreferenceManager().getContext(),
mLocationEnabler.isManagedProfileRestrictedByBase()
? UserHandle.myUserId() : UserHandle.USER_CURRENT);
}
}
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