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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.notification;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.pm.PackageItemInfo;
import android.content.pm.PackageManager;
import android.content.pm.ServiceInfo;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceScreen;
import android.preference.SwitchPreference;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.TextView;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import java.util.Collections;
import java.util.List;
public abstract class ManagedServiceSettings extends SettingsPreferenceFragment {
private final Config mConfig;
private Context mContext;
private PackageManager mPM;
private ServiceListing mServiceListing;
private TextView mEmpty;
abstract protected Config getConfig();
public ManagedServiceSettings() {
mConfig = getConfig();
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mContext = getActivity();
mPM = mContext.getPackageManager();
mServiceListing = new ServiceListing(mContext, mConfig);
mServiceListing.addCallback(new ServiceListing.Callback() {
@Override
public void onServicesReloaded(List<ServiceInfo> services) {
updateList(services);
}
});
setPreferenceScreen(getPreferenceManager().createPreferenceScreen(mContext));
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View v = inflater.inflate(R.layout.managed_service_settings, container, false);
mEmpty = (TextView) v.findViewById(android.R.id.empty);
mEmpty.setText(mConfig.emptyText);
((ListView) v.findViewById(android.R.id.list)).setEmptyView(mEmpty);
return v;
}
@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) {
final PreferenceScreen screen = getPreferenceScreen();
screen.removeAll();
Collections.sort(services, new PackageItemInfo.DisplayNameComparator(mPM));
for (ServiceInfo service : services) {
final ComponentName cn = new ComponentName(service.packageName, service.name);
final String title = service.loadLabel(mPM).toString();
final SwitchPreference pref = new SwitchPreference(mContext);
pref.setPersistent(false);
pref.setIcon(service.loadIcon(mPM));
pref.setTitle(title);
pref.setChecked(mServiceListing.isEnabled(cn));
pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
final boolean enable = (boolean) newValue;
return setEnabled(cn, title, enable);
}
});
screen.addPreference(pref);
}
}
private 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)
.show(getFragmentManager(), "dialog");
return false;
}
}
public class ScaryWarningDialogFragment extends DialogFragment {
static final String KEY_COMPONENT = "c";
static final String KEY_LABEL = "l";
public ScaryWarningDialogFragment setServiceInfo(ComponentName cn, String label) {
Bundle args = new Bundle();
args.putString(KEY_COMPONENT, cn.flattenToString());
args.putString(KEY_LABEL, label);
setArguments(args);
return this;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final Bundle args = getArguments();
final String label = args.getString(KEY_LABEL);
final ComponentName cn = ComponentName.unflattenFromString(args
.getString(KEY_COMPONENT));
final String title = getResources().getString(mConfig.warningDialogTitle, label);
final String summary = getResources().getString(mConfig.warningDialogSummary, label);
return new AlertDialog.Builder(mContext)
.setMessage(summary)
.setTitle(title)
.setCancelable(true)
.setPositiveButton(R.string.allow,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
mServiceListing.setEnabled(cn, true);
}
})
.setNegativeButton(R.string.deny,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// pass
}
})
.create();
}
}
protected static class Config {
String tag;
String setting;
String intentAction;
String permission;
String noun;
int warningDialogTitle;
int warningDialogSummary;
int emptyText;
}
}
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