text: /*
   * Copyright (C) 2012-2013 The CyanogenMod 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.settings;
  
  import android.content.Intent;
  import android.os.Bundle;
  import android.preference.Preference;
  import android.preference.PreferenceActivity;
  import android.preference.PreferenceScreen;
  
  import com.android.internal.widget.LockPatternUtils;
  
  public class ChooseLockPatternSize extends PreferenceActivity {
  
      @Override
      public Intent getIntent() {
          Intent modIntent = new Intent(super.getIntent());
          modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockPatternSizeFragment.class.getName());
          modIntent.putExtra(EXTRA_NO_HEADERS, true);
          return modIntent;
      }
  
      @Override
      protected boolean isValidFragment(String fragmentName) {
          if (ChooseLockPatternSizeFragment.class.getName().equals(fragmentName)) return true;
          return false;
      }
  
      public static class ChooseLockPatternSizeFragment extends SettingsPreferenceFragment {
          private ChooseLockSettingsHelper mChooseLockSettingsHelper;
  
          @Override
          public void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              mChooseLockSettingsHelper = new ChooseLockSettingsHelper(this.getActivity());
              if (!(getActivity() instanceof ChooseLockPatternSize)) {
                  throw new SecurityException("Fragment contained in wrong activity");
              }
              addPreferencesFromResource(R.xml.security_settings_pattern_size);
          }
  
          @Override
          public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
                  Preference preference) {
              final String key = preference.getKey();
  
              byte patternSize;
              if ("lock_pattern_size_4".equals(key)) {
                  patternSize = 4;
              } else if ("lock_pattern_size_5".equals(key)) {
                  patternSize = 5;
              } else if ("lock_pattern_size_6".equals(key)) {
                  patternSize = 6;
              } else {
                  patternSize = 3;
              }
  
              final boolean isFallback = getActivity().getIntent()
                  .getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false);
              boolean isRequiredForDecrypt = getActivity().getIntent()
                      .getBooleanExtra(EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
  
              Intent intent = new Intent(getActivity(), ChooseLockPattern.class);
              intent.putExtra("pattern_size", patternSize);
              intent.putExtra("key_lock_method", "pattern");
              intent.putExtra("confirm_credentials", false);
              intent.putExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK,
                      isFallback);
              intent.putExtra(EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, isRequiredForDecrypt);
              intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
              startActivity(intent);
  
              finish();
              return true;
          }
      }
  }
  