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/*
* Copyright (C) 2014 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.utils;
import android.annotation.Nullable;
import android.app.Dialog;
import android.app.admin.DevicePolicyManager;
import android.app.settings.SettingsEnums;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageItemInfo;
import android.content.pm.PackageManager;
import android.content.pm.ServiceInfo;
import android.os.Bundle;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.IconDrawableFactory;
import android.util.Log;
import android.view.View;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import androidx.preference.PreferenceScreen;
import androidx.preference.SwitchPreference;
import com.android.settings.R;
import com.android.settings.Utils;
import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
import com.android.settings.widget.EmptyTextSettings;
import com.android.settingslib.applications.ServiceListing;
import com.android.settingslib.widget.AppSwitchPreference;
import java.util.List;
public abstract class ManagedServiceSettings extends EmptyTextSettings {
private static final String TAG = "ManagedServiceSettings";
private final Config mConfig;
protected Context mContext;
private PackageManager mPm;
private DevicePolicyManager mDpm;
private ServiceListing mServiceListing;
private IconDrawableFactory mIconDrawableFactory;
abstract protected Config getConfig();
public ManagedServiceSettings() {
mConfig = getConfig();
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mContext = getActivity();
mPm = mContext.getPackageManager();
mDpm = (DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
mIconDrawableFactory = IconDrawableFactory.newInstance(mContext);
mServiceListing = new ServiceListing.Builder(mContext)
.setPermission(mConfig.permission)
.setIntentAction(mConfig.intentAction)
.setNoun(mConfig.noun)
.setSetting(mConfig.setting)
.setTag(mConfig.tag)
.build();
mServiceListing.addCallback(this::updateList);
setPreferenceScreen(getPreferenceManager().createPreferenceScreen(mContext));
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setEmptyText(mConfig.emptyText);
}
@Override
public void onResume() {
super.onResume();
mServiceListing.reload();
mServiceListing.setListening(true);
}
@Override
public void onPause() {
super.onPause();
mServiceListing.setListening(false);
}
private void updateList(List<ServiceInfo> services) {
UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
final int managedProfileId = Utils.getManagedProfileId(um, UserHandle.myUserId());
final PreferenceScreen screen = getPreferenceScreen();
screen.removeAll();
services.sort(new PackageItemInfo.DisplayNameComparator(mPm));
for (ServiceInfo service : services) {
final ComponentName cn = new ComponentName(service.packageName, service.name);
CharSequence title = null;
try {
title = mPm.getApplicationInfoAsUser(
service.packageName, 0, UserHandle.myUserId()).loadLabel(mPm);
} catch (PackageManager.NameNotFoundException e) {
// unlikely, as we are iterating over live services.
Log.e(TAG, "can't find package name", e);
}
final CharSequence finalTitle = title;
final String summary = service.loadLabel(mPm).toString();
final SwitchPreference pref = new AppSwitchPreference(getPrefContext());
pref.setPersistent(false);
pref.setIcon(mIconDrawableFactory.getBadgedIcon(service, service.applicationInfo,
UserHandle.getUserId(service.applicationInfo.uid)));
if (title != null && !title.equals(summary)) {
pref.setTitle(title);
pref.setSummary(summary);
} else {
pref.setTitle(summary);
}
pref.setKey(cn.flattenToString());
pref.setChecked(isServiceEnabled(cn));
if (managedProfileId != UserHandle.USER_NULL
&& !mDpm.isNotificationListenerServicePermitted(
service.packageName, managedProfileId)) {
pref.setSummary(R.string.work_profile_notification_access_blocked_summary);
}
pref.setOnPreferenceChangeListener((preference, newValue) -> {
final boolean enable = (boolean) newValue;
if (finalTitle != null) {
return setEnabled(cn, finalTitle.toString(), enable);
} else {
return setEnabled(cn, null, enable);
}
});
pref.setKey(cn.flattenToString());
screen.addPreference(pref);
}
highlightPreferenceIfNeeded();
}
private int getCurrentUser(int managedProfileId) {
if (managedProfileId != UserHandle.USER_NULL) {
return managedProfileId;
}
return UserHandle.myUserId();
}
protected boolean isServiceEnabled(ComponentName cn) {
return mServiceListing.isEnabled(cn);
}
protected boolean setEnabled(ComponentName service, String title, boolean enable) {
if (!enable) {
// the simple version: disabling
mServiceListing.setEnabled(service, false);
return true;
} else {
if (mServiceListing.isEnabled(service)) {
return true; // already enabled
}
// show a scary dialog
new ScaryWarningDialogFragment()
.setServiceInfo(service, title, this)
.show(getFragmentManager(), "dialog");
return false;
}
}
protected void enable(ComponentName service) {
mServiceListing.setEnabled(service, true);
}
public static class ScaryWarningDialogFragment extends InstrumentedDialogFragment {
private static final String KEY_COMPONENT = "c";
private static final String KEY_LABEL = "l";
@Override
public int getMetricsCategory() {
return SettingsEnums.DIALOG_SERVICE_ACCESS_WARNING;
}
public ScaryWarningDialogFragment setServiceInfo(ComponentName cn, String label,
Fragment target) {
Bundle args = new Bundle();
args.putString(KEY_COMPONENT, cn.flattenToString());
args.putString(KEY_LABEL, label);
setArguments(args);
setTargetFragment(target, 0);
return this;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Bundle args = getArguments();
final String label = args.getString(KEY_LABEL);
final ComponentName cn = ComponentName.unflattenFromString(args
.getString(KEY_COMPONENT));
ManagedServiceSettings parent = (ManagedServiceSettings) getTargetFragment();
final String title = getResources().getString(parent.mConfig.warningDialogTitle, label);
final String summary = getResources().getString(parent.mConfig.warningDialogSummary,
label);
return new AlertDialog.Builder(getContext())
.setMessage(summary)
.setTitle(title)
.setCancelable(true)
.setPositiveButton(R.string.allow,
(dialog, id) -> parent.enable(cn))
.setNegativeButton(R.string.deny,
(dialog, id) -> {
// pass
})
.create();
}
}
public static class Config {
public final String tag;
public final String setting;
public final String intentAction;
public final String permission;
public final String noun;
public final int warningDialogTitle;
public final int warningDialogSummary;
public final int emptyText;
public final String configIntentAction;
private Config(String tag, String setting, String intentAction, String configIntentAction,
String permission, String noun, int warningDialogTitle, int warningDialogSummary,
int emptyText) {
this.tag = tag;
this.setting = setting;
this.intentAction = intentAction;
this.permission = permission;
this.noun = noun;
this.warningDialogTitle = warningDialogTitle;
this.warningDialogSummary = warningDialogSummary;
this.emptyText = emptyText;
this.configIntentAction = configIntentAction;
}
public static class Builder{
private String mTag;
private String mSetting;
private String mIntentAction;
private String mPermission;
private String mNoun;
private int mWarningDialogTitle;
private int mWarningDialogSummary;
private int mEmptyText;
private String mConfigIntentAction;
public Builder setTag(String tag) {
mTag = tag;
return this;
}
public Builder setSetting(String setting) {
mSetting = setting;
return this;
}
public Builder setIntentAction(String intentAction) {
mIntentAction = intentAction;
return this;
}
public Builder setConfigurationIntentAction(String action) {
mConfigIntentAction = action;
return this;
}
public Builder setPermission(String permission) {
mPermission = permission;
return this;
}
public Builder setNoun(String noun) {
mNoun = noun;
return this;
}
public Builder setWarningDialogTitle(int warningDialogTitle) {
mWarningDialogTitle = warningDialogTitle;
return this;
}
public Builder setWarningDialogSummary(int warningDialogSummary) {
mWarningDialogSummary = warningDialogSummary;
return this;
}
public Builder setEmptyText(int emptyText) {
mEmptyText = emptyText;
return this;
}
public Config build() {
return new Config(mTag, mSetting, mIntentAction, mConfigIntentAction, mPermission,
mNoun, mWarningDialogTitle, mWarningDialogSummary, mEmptyText);
}
}
}
}