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      1 /*
      2  * Copyright (C) 2010 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.contacts.common.preference;
     18 
     19 import android.content.Context;
     20 import android.content.res.Resources;
     21 import android.os.Bundle;
     22 import android.preference.Preference;
     23 import android.preference.PreferenceFragment;
     24 
     25 import com.android.contacts.common.R;
     26 import com.android.contacts.common.model.AccountTypeManager;
     27 import com.android.contacts.common.model.account.AccountWithDataSet;
     28 import com.android.contacts.commonbind.ObjectFactory;
     29 
     30 import java.util.List;
     31 
     32 /**
     33  * This fragment shows the preferences for "display options"
     34  */
     35 public class DisplayOptionsPreferenceFragment extends PreferenceFragment {
     36 
     37     @Override
     38     public void onCreate(Bundle savedInstanceState) {
     39         super.onCreate(savedInstanceState);
     40 
     41         // Load the preferences from an XML resource
     42         addPreferencesFromResource(R.xml.preference_display_options);
     43 
     44         removeUnsupportedPreferences();
     45         addExtraPreferences();
     46 
     47         final Preference aboutPreference = findPreference("about");
     48         aboutPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
     49             @Override
     50             public boolean onPreferenceClick(Preference preference) {
     51                 ((ContactsPreferenceActivity) getActivity()).showAboutFragment();
     52                 return true;
     53             }
     54         });
     55     }
     56 
     57     private void removeUnsupportedPreferences() {
     58         // Disable sort order for CJK locales where it is not supported
     59         final Resources resources = getResources();
     60         if (!resources.getBoolean(R.bool.config_sort_order_user_changeable)) {
     61             getPreferenceScreen().removePreference(findPreference("sortOrder"));
     62         }
     63 
     64         // Disable display order for CJK locales as well
     65         if (!resources.getBoolean(R.bool.config_display_order_user_changeable)) {
     66             getPreferenceScreen().removePreference(findPreference("displayOrder"));
     67         }
     68 
     69         // Remove the "Default account" setting if there aren't any writable accounts
     70         final AccountTypeManager accountTypeManager = AccountTypeManager.getInstance(getContext());
     71         final List<AccountWithDataSet> accounts = accountTypeManager.getAccounts(
     72                 /* contactWritableOnly */ true);
     73         if (accounts.isEmpty()) {
     74             getPreferenceScreen().removePreference(findPreference("accounts"));
     75         }
     76     }
     77 
     78     private void addExtraPreferences() {
     79         final PreferenceManager preferenceManager = ObjectFactory.getPreferenceManager(
     80                 getContext());
     81         if (preferenceManager != null) {
     82             for (Preference preference : preferenceManager.getPreferences()) {
     83                 getPreferenceScreen().addPreference(preference);
     84             }
     85         }
     86     }
     87 
     88     @Override
     89     public Context getContext() {
     90         return getActivity();
     91     }
     92 }
     93