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      1 /*
      2  * Copyright (C) 2011 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.settings;
     18 
     19 import android.content.ComponentName;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.pm.PackageManager;
     23 import android.content.pm.ResolveInfo;
     24 import android.os.Bundle;
     25 import android.support.v7.preference.Preference;
     26 import android.support.v7.preference.PreferenceScreen;
     27 
     28 import com.android.internal.logging.MetricsProto.MetricsEvent;
     29 import com.android.settings.search.BaseSearchIndexProvider;
     30 import com.android.settings.search.Indexable;
     31 import com.android.settings.search.SearchIndexableRaw;
     32 
     33 import java.util.ArrayList;
     34 import java.util.List;
     35 
     36 public class WallpaperTypeSettings extends SettingsPreferenceFragment implements Indexable {
     37 
     38     @Override
     39     protected int getMetricsCategory() {
     40         return MetricsEvent.WALLPAPER_TYPE;
     41     }
     42 
     43     @Override
     44     protected int getHelpResource() {
     45         return R.string.help_uri_wallpaper;
     46     }
     47 
     48     @Override
     49     public void onCreate(Bundle savedInstanceState) {
     50         super.onCreate(savedInstanceState);
     51 
     52         addPreferencesFromResource(R.xml.wallpaper_settings);
     53         populateWallpaperTypes();
     54     }
     55 
     56     private void populateWallpaperTypes() {
     57         // Search for activities that satisfy the ACTION_SET_WALLPAPER action
     58         final Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
     59         final PackageManager pm = getPackageManager();
     60         final List<ResolveInfo> rList = pm.queryIntentActivities(intent,
     61                 PackageManager.MATCH_DEFAULT_ONLY);
     62 
     63         final PreferenceScreen parent = getPreferenceScreen();
     64         parent.setOrderingAsAdded(false);
     65         // Add Preference items for each of the matching activities
     66         for (ResolveInfo info : rList) {
     67             Preference pref = new Preference(getPrefContext());
     68             pref.setLayoutResource(R.layout.preference_wallpaper_type);
     69             Intent prefIntent = new Intent(intent);
     70             prefIntent.setComponent(new ComponentName(
     71                     info.activityInfo.packageName, info.activityInfo.name));
     72             pref.setIntent(prefIntent);
     73             CharSequence label = info.loadLabel(pm);
     74             if (label == null) label = info.activityInfo.packageName;
     75             pref.setTitle(label);
     76             pref.setIcon(info.loadIcon(pm));
     77             parent.addPreference(pref);
     78         }
     79     }
     80 
     81     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
     82         new BaseSearchIndexProvider() {
     83             @Override
     84             public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
     85                 final List<SearchIndexableRaw> result = new ArrayList<SearchIndexableRaw>();
     86 
     87                 final Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
     88                 final PackageManager pm = context.getPackageManager();
     89                 final List<ResolveInfo> rList = pm.queryIntentActivities(intent,
     90                         PackageManager.MATCH_DEFAULT_ONLY);
     91 
     92                 // Add indexable data for each of the matching activities
     93                 for (ResolveInfo info : rList) {
     94                     CharSequence label = info.loadLabel(pm);
     95                     if (label == null) label = info.activityInfo.packageName;
     96 
     97                     SearchIndexableRaw data = new SearchIndexableRaw(context);
     98                     data.title = label.toString();
     99                     data.screenTitle = context.getResources().getString(
    100                             R.string.wallpaper_settings_fragment_title);
    101                     data.intentAction = Intent.ACTION_SET_WALLPAPER;
    102                     data.intentTargetPackage = info.activityInfo.packageName;
    103                     data.intentTargetClass = info.activityInfo.name;
    104                     result.add(data);
    105                 }
    106 
    107                 return result;
    108             }
    109         };
    110 }
    111