| /* |
| * 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.systemui.tuner; |
| |
| import android.app.ActivityManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.DialogInterface.OnClickListener; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import com.android.systemui.BatteryMeterDrawable; |
| import com.android.systemui.DemoMode; |
| import com.android.systemui.R; |
| import com.android.systemui.SystemUI; |
| import com.android.systemui.SystemUIApplication; |
| import com.android.systemui.settings.CurrentUserTracker; |
| import com.android.systemui.statusbar.phone.SystemUIDialog; |
| |
| import java.util.HashMap; |
| import java.util.Set; |
| |
| |
| public class TunerService extends SystemUI { |
| |
| public static final String ACTION_CLEAR = "com.android.systemui.action.CLEAR_TUNER"; |
| |
| private final Observer mObserver = new Observer(); |
| // Map of Uris we listen on to their settings keys. |
| private final ArrayMap<Uri, String> mListeningUris = new ArrayMap<>(); |
| // Map of settings keys to the listener. |
| private final HashMap<String, Set<Tunable>> mTunableLookup = new HashMap<>(); |
| |
| private ContentResolver mContentResolver; |
| private int mCurrentUser; |
| private CurrentUserTracker mUserTracker; |
| |
| @Override |
| public void start() { |
| mContentResolver = mContext.getContentResolver(); |
| putComponent(TunerService.class, this); |
| |
| mCurrentUser = ActivityManager.getCurrentUser(); |
| mUserTracker = new CurrentUserTracker(mContext) { |
| @Override |
| public void onUserSwitched(int newUserId) { |
| mCurrentUser = newUserId; |
| reloadAll(); |
| reregisterAll(); |
| } |
| }; |
| mUserTracker.startTracking(); |
| } |
| |
| public void addTunable(Tunable tunable, String... keys) { |
| for (String key : keys) { |
| addTunable(tunable, key); |
| } |
| } |
| |
| private void addTunable(Tunable tunable, String key) { |
| if (!mTunableLookup.containsKey(key)) { |
| mTunableLookup.put(key, new ArraySet<Tunable>()); |
| } |
| mTunableLookup.get(key).add(tunable); |
| Uri uri = Settings.Secure.getUriFor(key); |
| if (!mListeningUris.containsKey(uri)) { |
| mListeningUris.put(uri, key); |
| mContentResolver.registerContentObserver(uri, false, mObserver, mCurrentUser); |
| } |
| // Send the first state. |
| String value = Settings.Secure.getStringForUser(mContentResolver, key, mCurrentUser); |
| tunable.onTuningChanged(key, value); |
| } |
| |
| public void removeTunable(Tunable tunable) { |
| for (Set<Tunable> list : mTunableLookup.values()) { |
| list.remove(tunable); |
| } |
| } |
| |
| protected void reregisterAll() { |
| if (mListeningUris.size() == 0) { |
| return; |
| } |
| mContentResolver.unregisterContentObserver(mObserver); |
| for (Uri uri : mListeningUris.keySet()) { |
| mContentResolver.registerContentObserver(uri, false, mObserver, mCurrentUser); |
| } |
| } |
| |
| public void reloadSetting(Uri uri) { |
| String key = mListeningUris.get(uri); |
| Set<Tunable> tunables = mTunableLookup.get(key); |
| if (tunables == null) { |
| return; |
| } |
| String value = Settings.Secure.getStringForUser(mContentResolver, key, mCurrentUser); |
| for (Tunable tunable : tunables) { |
| tunable.onTuningChanged(key, value); |
| } |
| } |
| |
| private void reloadAll() { |
| for (String key : mTunableLookup.keySet()) { |
| String value = Settings.Secure.getStringForUser(mContentResolver, key, |
| mCurrentUser); |
| for (Tunable tunable : mTunableLookup.get(key)) { |
| tunable.onTuningChanged(key, value); |
| } |
| } |
| } |
| |
| public void clearAll() { |
| // A couple special cases. |
| Settings.Global.putString(mContentResolver, DemoMode.DEMO_MODE_ALLOWED, null); |
| Settings.System.putString(mContentResolver, BatteryMeterDrawable.SHOW_PERCENT_SETTING, null); |
| Intent intent = new Intent(DemoMode.ACTION_DEMO); |
| intent.putExtra(DemoMode.EXTRA_COMMAND, DemoMode.COMMAND_EXIT); |
| mContext.sendBroadcast(intent); |
| |
| for (String key : mTunableLookup.keySet()) { |
| Settings.Secure.putString(mContentResolver, key, null); |
| } |
| } |
| |
| // Only used in other processes, such as the tuner. |
| private static TunerService sInstance; |
| |
| public static TunerService get(Context context) { |
| TunerService service = null; |
| if (context.getApplicationContext() instanceof SystemUIApplication) { |
| SystemUIApplication sysUi = (SystemUIApplication) context.getApplicationContext(); |
| service = sysUi.getComponent(TunerService.class); |
| } |
| if (service == null) { |
| // Can't get it as a component, must in the tuner, lets just create one for now. |
| return getStaticService(context); |
| } |
| return service; |
| } |
| |
| private static TunerService getStaticService(Context context) { |
| if (sInstance == null) { |
| sInstance = new TunerService(); |
| sInstance.mContext = context.getApplicationContext(); |
| sInstance.mComponents = new HashMap<>(); |
| sInstance.start(); |
| } |
| return sInstance; |
| } |
| |
| public static final void showResetRequest(final Context context, final Runnable onDisabled) { |
| SystemUIDialog dialog = new SystemUIDialog(context); |
| dialog.setShowForAllUsers(true); |
| dialog.setMessage(R.string.remove_from_settings_prompt); |
| dialog.setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(R.string.cancel), |
| (OnClickListener) null); |
| dialog.setButton(DialogInterface.BUTTON_POSITIVE, |
| context.getString(R.string.guest_exit_guest_dialog_remove), new OnClickListener() { |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| // Tell the tuner (in main SysUI process) to clear all its settings. |
| context.sendBroadcast(new Intent(TunerService.ACTION_CLEAR)); |
| // Disable access to tuner. |
| TunerService.setTunerEnabled(context, false); |
| // Make them sit through the warning dialog again. |
| Settings.Secure.putInt(context.getContentResolver(), |
| TunerFragment.SETTING_SEEN_TUNER_WARNING, 0); |
| if (onDisabled != null) { |
| onDisabled.run(); |
| } |
| } |
| }); |
| dialog.show(); |
| } |
| |
| public static final void setTunerEnabled(Context context, boolean enabled) { |
| userContext(context).getPackageManager().setComponentEnabledSetting( |
| new ComponentName(context, TunerActivity.class), |
| enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED |
| : PackageManager.COMPONENT_ENABLED_STATE_DISABLED, |
| PackageManager.DONT_KILL_APP); |
| } |
| |
| public static final boolean isTunerEnabled(Context context) { |
| return userContext(context).getPackageManager().getComponentEnabledSetting( |
| new ComponentName(context, TunerActivity.class)) |
| == PackageManager.COMPONENT_ENABLED_STATE_ENABLED; |
| } |
| |
| private static Context userContext(Context context) { |
| try { |
| return context.createPackageContextAsUser(context.getPackageName(), 0, |
| new UserHandle(ActivityManager.getCurrentUser())); |
| } catch (NameNotFoundException e) { |
| return context; |
| } |
| } |
| |
| private class Observer extends ContentObserver { |
| public Observer() { |
| super(new Handler(Looper.getMainLooper())); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri, int userId) { |
| if (userId == ActivityManager.getCurrentUser()) { |
| reloadSetting(uri); |
| } |
| } |
| } |
| |
| public interface Tunable { |
| void onTuningChanged(String key, String newValue); |
| } |
| |
| public static class ClearReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (ACTION_CLEAR.equals(intent.getAction())) { |
| get(context).clearAll(); |
| } |
| } |
| } |
| } |