Home | History | Annotate | Download | only in oem 
      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * This file is derived in part from code issued under the following license.
      5  *
      6  * Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *      http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  *
     18  */
     19 package com.android.dialer.oem;
     20 
     21 import android.content.ActivityNotFoundException;
     22 import android.content.Context;
     23 import android.content.Intent;
     24 import android.content.pm.ResolveInfo;
     25 import com.android.dialer.common.LogUtil;
     26 import java.util.regex.Pattern;
     27 
     28 /**
     29  * Util class to handle special char sequence and launch corresponding intent based the sequence.
     30  */
     31 public class MotorolaHiddenMenuKeySequence {
     32   private static final String EXTRA_HIDDEN_MENU_CODE = "HiddenMenuCode";
     33   private static MotorolaHiddenMenuKeySequence instance = null;
     34 
     35   private static String[] hiddenKeySequenceArray = null;
     36   private static String[] hiddenKeySequenceIntentArray = null;
     37   private static String[] hiddenKeyPatternArray = null;
     38   private static String[] hiddenKeyPatternIntentArray = null;
     39   private static boolean featureHiddenMenuEnabled = false;
     40 
     41   /**
     42    * Handle input char sequence.
     43    *
     44    * @param context context
     45    * @param input input sequence
     46    * @return true if the input matches any pattern
     47    */
     48   static boolean handleCharSequence(Context context, String input) {
     49     getInstance(context);
     50     if (!featureHiddenMenuEnabled) {
     51       return false;
     52     }
     53     return handleKeySequence(context, input) || handleKeyPattern(context, input);
     54   }
     55 
     56   /**
     57    * Public interface to return the Singleton instance
     58    *
     59    * @param context the Context
     60    * @return the MotorolaHiddenMenuKeySequence singleton instance
     61    */
     62   private static synchronized MotorolaHiddenMenuKeySequence getInstance(Context context) {
     63     if (null == instance) {
     64       instance = new MotorolaHiddenMenuKeySequence(context);
     65     }
     66     return instance;
     67   }
     68 
     69   private MotorolaHiddenMenuKeySequence(Context context) {
     70     featureHiddenMenuEnabled = MotorolaUtils.isSupportingHiddenMenu(context);
     71     // In case we do have a SPN from resource we need to match from service; otherwise we are
     72     // free to go
     73     if (featureHiddenMenuEnabled) {
     74 
     75       hiddenKeySequenceArray =
     76           context.getResources().getStringArray(R.array.motorola_hidden_menu_key_sequence);
     77       hiddenKeySequenceIntentArray =
     78           context.getResources().getStringArray(R.array.motorola_hidden_menu_key_sequence_intents);
     79       hiddenKeyPatternArray =
     80           context.getResources().getStringArray(R.array.motorola_hidden_menu_key_pattern);
     81       hiddenKeyPatternIntentArray =
     82           context.getResources().getStringArray(R.array.motorola_hidden_menu_key_pattern_intents);
     83 
     84       if (hiddenKeySequenceArray.length != hiddenKeySequenceIntentArray.length
     85           || hiddenKeyPatternArray.length != hiddenKeyPatternIntentArray.length
     86           || (hiddenKeySequenceArray.length == 0 && hiddenKeyPatternArray.length == 0)) {
     87         LogUtil.e(
     88             "MotorolaHiddenMenuKeySequence",
     89             "the key sequence array is not matching, turn off feature."
     90                 + "key sequence: %d != %d, key pattern %d != %d",
     91             hiddenKeySequenceArray.length,
     92             hiddenKeySequenceIntentArray.length,
     93             hiddenKeyPatternArray.length,
     94             hiddenKeyPatternIntentArray.length);
     95         featureHiddenMenuEnabled = false;
     96       }
     97     }
     98   }
     99 
    100   private static boolean handleKeyPattern(Context context, String input) {
    101     int len = input.length();
    102     if (len <= 3 || hiddenKeyPatternArray == null || hiddenKeyPatternIntentArray == null) {
    103       return false;
    104     }
    105 
    106     for (int i = 0; i < hiddenKeyPatternArray.length; i++) {
    107       if ((Pattern.compile(hiddenKeyPatternArray[i])).matcher(input).matches()) {
    108         return sendIntent(context, input, hiddenKeyPatternIntentArray[i]);
    109       }
    110     }
    111     return false;
    112   }
    113 
    114   private static boolean handleKeySequence(Context context, String input) {
    115     int len = input.length();
    116     if (len <= 3 || hiddenKeySequenceArray == null || hiddenKeySequenceIntentArray == null) {
    117       return false;
    118     }
    119 
    120     for (int i = 0; i < hiddenKeySequenceArray.length; i++) {
    121       if (hiddenKeySequenceArray[i].equals(input)) {
    122         return sendIntent(context, input, hiddenKeySequenceIntentArray[i]);
    123       }
    124     }
    125     return false;
    126   }
    127 
    128   private static boolean sendIntent(
    129       final Context context, final String input, final String action) {
    130     LogUtil.d("MotorolaHiddenMenuKeySequence.sendIntent", "input: %s", input);
    131     try {
    132       Intent intent = new Intent(action);
    133       intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
    134       intent.putExtra(EXTRA_HIDDEN_MENU_CODE, input);
    135 
    136       ResolveInfo resolveInfo = context.getPackageManager().resolveActivity(intent, 0);
    137 
    138       if (resolveInfo != null
    139           && resolveInfo.activityInfo != null
    140           && resolveInfo.activityInfo.enabled) {
    141         context.startActivity(intent);
    142         return true;
    143       } else {
    144         LogUtil.w("MotorolaHiddenMenuKeySequence.sendIntent", "not able to resolve the intent");
    145       }
    146     } catch (ActivityNotFoundException e) {
    147       LogUtil.e(
    148           "MotorolaHiddenMenuKeySequence.sendIntent", "handleHiddenMenu Key Pattern Exception", e);
    149     }
    150     return false;
    151   }
    152 }
    153