TunerService.java revision 6aa6e6e640ddaea3272144aee68762dd17674773 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16package com.android.systemui.tuner;
17
18import android.app.ActivityManager;
19import android.content.BroadcastReceiver;
20import android.content.ComponentName;
21import android.content.ContentResolver;
22import android.content.Context;
23import android.content.DialogInterface;
24import android.content.DialogInterface.OnClickListener;
25import android.content.Intent;
26import android.content.pm.PackageManager;
27import android.content.pm.PackageManager.NameNotFoundException;
28import android.content.pm.UserInfo;
29import android.database.ContentObserver;
30import android.net.Uri;
31import android.os.Handler;
32import android.os.Looper;
33import android.os.UserHandle;
34import android.os.UserManager;
35import android.provider.Settings;
36import android.provider.Settings.Secure;
37import android.text.TextUtils;
38import android.util.ArrayMap;
39import android.util.ArraySet;
40
41import static com.android.systemui.BatteryMeterDrawable.SHOW_PERCENT_SETTING;
42import com.android.systemui.DemoMode;
43import com.android.systemui.Dependency;
44import com.android.systemui.R;
45import com.android.systemui.settings.CurrentUserTracker;
46import com.android.systemui.statusbar.phone.StatusBarIconController;
47import com.android.systemui.statusbar.phone.SystemUIDialog;
48
49import java.util.HashMap;
50import java.util.Set;
51
52
53public class TunerService {
54
55    public static final String ACTION_CLEAR = "com.android.systemui.action.CLEAR_TUNER";
56
57    private static final String TUNER_VERSION = "sysui_tuner_version";
58
59    private static final int CURRENT_TUNER_VERSION = 1;
60
61    private final Observer mObserver = new Observer();
62    // Map of Uris we listen on to their settings keys.
63    private final ArrayMap<Uri, String> mListeningUris = new ArrayMap<>();
64    // Map of settings keys to the listener.
65    private final HashMap<String, Set<Tunable>> mTunableLookup = new HashMap<>();
66    private final Context mContext;
67
68    private ContentResolver mContentResolver;
69    private int mCurrentUser;
70    private CurrentUserTracker mUserTracker;
71
72    public TunerService(Context context) {
73        mContext = context;
74        mContentResolver = mContext.getContentResolver();
75
76        for (UserInfo user : UserManager.get(mContext).getUsers()) {
77            mCurrentUser = user.getUserHandle().getIdentifier();
78            if (getValue(TUNER_VERSION, 0) != CURRENT_TUNER_VERSION) {
79                upgradeTuner(getValue(TUNER_VERSION, 0), CURRENT_TUNER_VERSION);
80            }
81        }
82
83        mCurrentUser = ActivityManager.getCurrentUser();
84        mUserTracker = new CurrentUserTracker(mContext) {
85            @Override
86            public void onUserSwitched(int newUserId) {
87                mCurrentUser = newUserId;
88                reloadAll();
89                reregisterAll();
90            }
91        };
92        mUserTracker.startTracking();
93    }
94
95    public void destroy() {
96        mUserTracker.stopTracking();
97    }
98
99    private void upgradeTuner(int oldVersion, int newVersion) {
100        if (oldVersion < 1) {
101            String blacklistStr = getValue(StatusBarIconController.ICON_BLACKLIST);
102            if (blacklistStr != null) {
103                ArraySet<String> iconBlacklist =
104                        StatusBarIconController.getIconBlacklist(blacklistStr);
105
106                iconBlacklist.add("rotate");
107                iconBlacklist.add("headset");
108
109                Settings.Secure.putStringForUser(mContentResolver,
110                        StatusBarIconController.ICON_BLACKLIST,
111                        TextUtils.join(",", iconBlacklist), mCurrentUser);
112            }
113        }
114        setValue(TUNER_VERSION, newVersion);
115    }
116
117    public String getValue(String setting) {
118        return Settings.Secure.getStringForUser(mContentResolver, setting, mCurrentUser);
119    }
120
121    public void setValue(String setting, String value) {
122         Settings.Secure.putStringForUser(mContentResolver, setting, value, mCurrentUser);
123    }
124
125    public int getValue(String setting, int def) {
126        return Settings.Secure.getIntForUser(mContentResolver, setting, def, mCurrentUser);
127    }
128
129    public String getValue(String setting, String def) {
130        String ret = Secure.getStringForUser(mContentResolver, setting, mCurrentUser);
131        if (ret == null) return def;
132        return ret;
133    }
134
135    public void setValue(String setting, int value) {
136         Settings.Secure.putIntForUser(mContentResolver, setting, value, mCurrentUser);
137    }
138
139    public void addTunable(Tunable tunable, String... keys) {
140        for (String key : keys) {
141            addTunable(tunable, key);
142        }
143    }
144
145    private void addTunable(Tunable tunable, String key) {
146        if (!mTunableLookup.containsKey(key)) {
147            mTunableLookup.put(key, new ArraySet<Tunable>());
148        }
149        mTunableLookup.get(key).add(tunable);
150        Uri uri = Settings.Secure.getUriFor(key);
151        if (!mListeningUris.containsKey(uri)) {
152            mListeningUris.put(uri, key);
153            mContentResolver.registerContentObserver(uri, false, mObserver, mCurrentUser);
154        }
155        // Send the first state.
156        String value = Settings.Secure.getStringForUser(mContentResolver, key, mCurrentUser);
157        tunable.onTuningChanged(key, value);
158    }
159
160    public void removeTunable(Tunable tunable) {
161        for (Set<Tunable> list : mTunableLookup.values()) {
162            list.remove(tunable);
163        }
164    }
165
166    protected void reregisterAll() {
167        if (mListeningUris.size() == 0) {
168            return;
169        }
170        mContentResolver.unregisterContentObserver(mObserver);
171        for (Uri uri : mListeningUris.keySet()) {
172            mContentResolver.registerContentObserver(uri, false, mObserver, mCurrentUser);
173        }
174    }
175
176    public void reloadSetting(Uri uri) {
177        String key = mListeningUris.get(uri);
178        Set<Tunable> tunables = mTunableLookup.get(key);
179        if (tunables == null) {
180            return;
181        }
182        String value = Settings.Secure.getStringForUser(mContentResolver, key, mCurrentUser);
183        for (Tunable tunable : tunables) {
184            tunable.onTuningChanged(key, value);
185        }
186    }
187
188    private void reloadAll() {
189        for (String key : mTunableLookup.keySet()) {
190            String value = Settings.Secure.getStringForUser(mContentResolver, key,
191                    mCurrentUser);
192            for (Tunable tunable : mTunableLookup.get(key)) {
193                tunable.onTuningChanged(key, value);
194            }
195        }
196    }
197
198    public void clearAll() {
199        // A couple special cases.
200        Settings.Global.putString(mContentResolver, DemoMode.DEMO_MODE_ALLOWED, null);
201        Settings.System.putString(mContentResolver,
202                SHOW_PERCENT_SETTING, null);
203        Intent intent = new Intent(DemoMode.ACTION_DEMO);
204        intent.putExtra(DemoMode.EXTRA_COMMAND, DemoMode.COMMAND_EXIT);
205        mContext.sendBroadcast(intent);
206
207        for (String key : mTunableLookup.keySet()) {
208            Settings.Secure.putString(mContentResolver, key, null);
209        }
210    }
211
212    public static final void showResetRequest(final Context context, final Runnable onDisabled) {
213        SystemUIDialog dialog = new SystemUIDialog(context);
214        dialog.setShowForAllUsers(true);
215        dialog.setMessage(R.string.remove_from_settings_prompt);
216        dialog.setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(R.string.cancel),
217                (OnClickListener) null);
218        dialog.setButton(DialogInterface.BUTTON_POSITIVE,
219                context.getString(R.string.guest_exit_guest_dialog_remove), new OnClickListener() {
220            @Override
221            public void onClick(DialogInterface dialog, int which) {
222                // Tell the tuner (in main SysUI process) to clear all its settings.
223                context.sendBroadcast(new Intent(TunerService.ACTION_CLEAR));
224                // Disable access to tuner.
225                TunerService.setTunerEnabled(context, false);
226                // Make them sit through the warning dialog again.
227                Settings.Secure.putInt(context.getContentResolver(),
228                        TunerFragment.SETTING_SEEN_TUNER_WARNING, 0);
229                if (onDisabled != null) {
230                    onDisabled.run();
231                }
232            }
233        });
234        dialog.show();
235    }
236
237    public static final void setTunerEnabled(Context context, boolean enabled) {
238        userContext(context).getPackageManager().setComponentEnabledSetting(
239                new ComponentName(context, TunerActivity.class),
240                enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
241                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
242                        PackageManager.DONT_KILL_APP);
243
244        userContext(context).getPackageManager().setComponentEnabledSetting(
245                new ComponentName(context, TunerActivity.ACTIVITY_ALIAS_NAME),
246                enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
247                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
248                PackageManager.DONT_KILL_APP);
249    }
250
251    public static final boolean isTunerEnabled(Context context) {
252        return userContext(context).getPackageManager().getComponentEnabledSetting(
253                new ComponentName(context, TunerActivity.class))
254                == PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
255    }
256
257    private static Context userContext(Context context) {
258        try {
259            return context.createPackageContextAsUser(context.getPackageName(), 0,
260                    new UserHandle(ActivityManager.getCurrentUser()));
261        } catch (NameNotFoundException e) {
262            return context;
263        }
264    }
265
266    private class Observer extends ContentObserver {
267        public Observer() {
268            super(new Handler(Looper.getMainLooper()));
269        }
270
271        @Override
272        public void onChange(boolean selfChange, Uri uri, int userId) {
273            if (userId == ActivityManager.getCurrentUser()) {
274                reloadSetting(uri);
275            }
276        }
277    }
278
279    public interface Tunable {
280        void onTuningChanged(String key, String newValue);
281    }
282
283    public static class ClearReceiver extends BroadcastReceiver {
284        @Override
285        public void onReceive(Context context, Intent intent) {
286            if (ACTION_CLEAR.equals(intent.getAction())) {
287                Dependency.get(TunerService.class).clearAll();
288            }
289        }
290    }
291}
292