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
getMetricsCategory()39     protected int getMetricsCategory() {
40         return MetricsEvent.WALLPAPER_TYPE;
41     }
42 
43     @Override
getHelpResource()44     protected int getHelpResource() {
45         return R.string.help_uri_wallpaper;
46     }
47 
48     @Override
onCreate(Bundle savedInstanceState)49     public void onCreate(Bundle savedInstanceState) {
50         super.onCreate(savedInstanceState);
51 
52         addPreferencesFromResource(R.xml.wallpaper_settings);
53         populateWallpaperTypes();
54     }
55 
populateWallpaperTypes()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