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      1 /*
      2  * Copyright (C) 2018 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  */
     16 
     17 package com.android.systemui.statusbar.policy;
     18 
     19 import android.content.ContentResolver;
     20 import android.content.Context;
     21 import android.content.res.Resources;
     22 import android.database.ContentObserver;
     23 import android.net.Uri;
     24 import android.os.Handler;
     25 import android.provider.Settings;
     26 import android.util.KeyValueListParser;
     27 import android.util.Log;
     28 
     29 import com.android.systemui.R;
     30 
     31 public final class SmartReplyConstants extends ContentObserver {
     32 
     33     private static final String TAG = "SmartReplyConstants";
     34 
     35     private static final String KEY_ENABLED = "enabled";
     36     private static final String KEY_REQUIRES_TARGETING_P = "requires_targeting_p";
     37     private static final String KEY_MAX_SQUEEZE_REMEASURE_ATTEMPTS =
     38             "max_squeeze_remeasure_attempts";
     39 
     40     private final boolean mDefaultEnabled;
     41     private final boolean mDefaultRequiresP;
     42     private final int mDefaultMaxSqueezeRemeasureAttempts;
     43 
     44     private boolean mEnabled;
     45     private boolean mRequiresTargetingP;
     46     private int mMaxSqueezeRemeasureAttempts;
     47 
     48     private final Context mContext;
     49     private final KeyValueListParser mParser = new KeyValueListParser(',');
     50 
     51     public SmartReplyConstants(Handler handler, Context context) {
     52         super(handler);
     53 
     54         mContext = context;
     55         final Resources resources = mContext.getResources();
     56         mDefaultEnabled = resources.getBoolean(
     57                 R.bool.config_smart_replies_in_notifications_enabled);
     58         mDefaultRequiresP = resources.getBoolean(
     59                 R.bool.config_smart_replies_in_notifications_requires_targeting_p);
     60         mDefaultMaxSqueezeRemeasureAttempts = resources.getInteger(
     61                 R.integer.config_smart_replies_in_notifications_max_squeeze_remeasure_attempts);
     62 
     63         mContext.getContentResolver().registerContentObserver(
     64                 Settings.Global.getUriFor(Settings.Global.SMART_REPLIES_IN_NOTIFICATIONS_FLAGS),
     65                 false, this);
     66         updateConstants();
     67     }
     68 
     69     @Override
     70     public void onChange(boolean selfChange, Uri uri) {
     71         updateConstants();
     72     }
     73 
     74     private void updateConstants() {
     75         synchronized (SmartReplyConstants.this) {
     76             try {
     77                 mParser.setString(Settings.Global.getString(mContext.getContentResolver(),
     78                         Settings.Global.SMART_REPLIES_IN_NOTIFICATIONS_FLAGS));
     79             } catch (IllegalArgumentException e) {
     80                 Log.e(TAG, "Bad smart reply constants", e);
     81             }
     82             mEnabled = mParser.getBoolean(KEY_ENABLED, mDefaultEnabled);
     83             mRequiresTargetingP = mParser.getBoolean(KEY_REQUIRES_TARGETING_P, mDefaultRequiresP);
     84             mMaxSqueezeRemeasureAttempts = mParser.getInt(
     85                     KEY_MAX_SQUEEZE_REMEASURE_ATTEMPTS, mDefaultMaxSqueezeRemeasureAttempts);
     86         }
     87     }
     88 
     89     /** Returns whether smart replies in notifications are enabled. */
     90     public boolean isEnabled() {
     91         return mEnabled;
     92     }
     93 
     94     /**
     95      * Returns whether smart replies in notifications should be disabled when the app targets a
     96      * version of Android older than P.
     97      */
     98     public boolean requiresTargetingP() {
     99         return mRequiresTargetingP;
    100     }
    101 
    102     /**
    103      * Returns the maximum number of times {@link SmartReplyView#onMeasure(int, int)} will try to
    104      * find a better (narrower) line-break for a double-line smart reply button.
    105      */
    106     public int getMaxSqueezeRemeasureAttempts() {
    107         return mMaxSqueezeRemeasureAttempts;
    108     }
    109 }
    110