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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 package com.android.systemui.tuner;
     15 
     16 import android.content.Context;
     17 import android.text.TextUtils;
     18 import android.util.ArraySet;
     19 import android.util.AttributeSet;
     20 
     21 import androidx.preference.DropDownPreference;
     22 
     23 import com.android.systemui.Dependency;
     24 import com.android.systemui.statusbar.phone.StatusBarIconController;
     25 import com.android.systemui.statusbar.policy.Clock;
     26 
     27 public class ClockPreference extends DropDownPreference implements TunerService.Tunable {
     28 
     29     private static final String SECONDS = "seconds";
     30     private static final String DEFAULT = "default";
     31     private static final String DISABLED = "disabled";
     32 
     33     private final String mClock;
     34     private boolean mClockEnabled;
     35     private boolean mHasSeconds;
     36     private ArraySet<String> mBlacklist;
     37     private boolean mHasSetValue;
     38     private boolean mReceivedSeconds;
     39     private boolean mReceivedClock;
     40 
     41     public ClockPreference(Context context, AttributeSet attrs) {
     42         super(context, attrs);
     43         mClock = context.getString(com.android.internal.R.string.status_bar_clock);
     44         setEntryValues(new CharSequence[] { SECONDS, DEFAULT, DISABLED });
     45     }
     46 
     47     @Override
     48     public void onAttached() {
     49         super.onAttached();
     50         Dependency.get(TunerService.class).addTunable(this, StatusBarIconController.ICON_BLACKLIST,
     51                 Clock.CLOCK_SECONDS);
     52     }
     53 
     54     @Override
     55     public void onDetached() {
     56         Dependency.get(TunerService.class).removeTunable(this);
     57         super.onDetached();
     58     }
     59 
     60     @Override
     61     public void onTuningChanged(String key, String newValue) {
     62         if (StatusBarIconController.ICON_BLACKLIST.equals(key)) {
     63             mReceivedClock = true;
     64             mBlacklist = StatusBarIconController.getIconBlacklist(newValue);
     65             mClockEnabled = !mBlacklist.contains(mClock);
     66         } else if (Clock.CLOCK_SECONDS.equals(key)) {
     67             mReceivedSeconds = true;
     68             mHasSeconds = newValue != null && Integer.parseInt(newValue) != 0;
     69         }
     70         if (!mHasSetValue && mReceivedClock && mReceivedSeconds) {
     71             // Because of the complicated tri-state it can end up looping and setting state back to
     72             // what the user didn't choose.  To avoid this, just set the state once and rely on the
     73             // preference to handle updates.
     74             mHasSetValue = true;
     75             if (mClockEnabled && mHasSeconds) {
     76                 setValue(SECONDS);
     77             } else if (mClockEnabled) {
     78                 setValue(DEFAULT);
     79             } else {
     80                 setValue(DISABLED);
     81             }
     82         }
     83     }
     84 
     85     @Override
     86     protected boolean persistString(String value) {
     87         Dependency.get(TunerService.class).setValue(Clock.CLOCK_SECONDS, SECONDS.equals(value) ? 1
     88                 : 0);
     89         if (DISABLED.equals(value)) {
     90             mBlacklist.add(mClock);
     91         } else {
     92             mBlacklist.remove(mClock);
     93         }
     94         Dependency.get(TunerService.class).setValue(StatusBarIconController.ICON_BLACKLIST,
     95                 TextUtils.join(",", mBlacklist));
     96         return true;
     97     }
     98 }
     99