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 static android.provider.Settings.Secure.SCREENSAVER_COMPONENT; 20 21 import android.app.AlertDialog; 22 import android.content.Context; 23 import android.content.ComponentName; 24 import android.content.ContentResolver; 25 import android.content.DialogInterface; 26 import android.content.Intent; 27 import android.content.pm.ActivityInfo; 28 import android.content.pm.ApplicationInfo; 29 import android.content.pm.ComponentInfo; 30 import android.content.pm.PackageManager; 31 import android.content.pm.ResolveInfo; 32 import android.content.res.Resources; 33 import android.os.Bundle; 34 import android.os.RemoteException; 35 import android.os.ServiceManager; 36 import android.preference.Preference; 37 import android.provider.Settings; 38 import android.service.dreams.IDreamManager; 39 import android.util.AttributeSet; 40 import android.util.Log; 41 import android.view.Gravity; 42 import android.view.LayoutInflater; 43 import android.view.View; 44 import android.view.ViewGroup; 45 import android.widget.ArrayAdapter; 46 import android.widget.ListView; 47 import android.widget.BaseAdapter; 48 import android.widget.ImageView; 49 import android.widget.ListAdapter; 50 import android.widget.TextView; 51 52 import java.text.Collator; 53 import java.util.ArrayList; 54 import java.util.Collections; 55 import java.util.Comparator; 56 import java.util.List; 57 58 public class DreamComponentPreference extends Preference { 59 private static final String TAG = "DreamComponentPreference"; 60 61 private static final boolean SHOW_DOCK_APPS = false; 62 private static final boolean SHOW_DREAM_SERVICES = true; 63 private static final boolean SHOW_DREAM_ACTIVITIES = false; 64 65 private final PackageManager pm; 66 private final ContentResolver resolver; 67 private final Collator sCollator = Collator.getInstance(); 68 69 public DreamComponentPreference(Context context, AttributeSet attrs) { 70 super(context, attrs); 71 pm = getContext().getPackageManager(); 72 resolver = getContext().getContentResolver(); 73 74 refreshFromSettings(); 75 } 76 77 private void refreshFromSettings() { 78 ComponentName cn = null; 79 IDreamManager dm = IDreamManager.Stub.asInterface( 80 ServiceManager.getService("dreams")); 81 try { 82 cn = dm.getDreamComponent(); 83 } catch (RemoteException ex) { 84 setSummary("(unknown)"); 85 return; 86 } 87 88 try { 89 setSummary(pm.getActivityInfo(cn, 0).loadLabel(pm)); 90 } catch (PackageManager.NameNotFoundException ex) { 91 try { 92 setSummary(pm.getServiceInfo(cn, 0).loadLabel(pm)); 93 } catch (PackageManager.NameNotFoundException ex2) { 94 setSummary("(unknown)"); 95 } 96 } 97 } 98 99 // Group by package, then by name. 100 Comparator<ResolveInfo> sResolveInfoComparator = new Comparator<ResolveInfo>() { 101 @Override 102 public int compare(ResolveInfo a, ResolveInfo b) { 103 CharSequence sa, sb; 104 105 ApplicationInfo aia = a.activityInfo != null ? a.activityInfo.applicationInfo : a.serviceInfo.applicationInfo; 106 ApplicationInfo aib = b.activityInfo != null ? b.activityInfo.applicationInfo : b.serviceInfo.applicationInfo; 107 108 if (!aia.equals(aib)) { 109 sa = pm.getApplicationLabel(aia); 110 sb = pm.getApplicationLabel(aib); 111 } else { 112 sa = a.loadLabel(pm); 113 if (sa == null) { 114 sa = (a.activityInfo != null) ? a.activityInfo.name : a.serviceInfo.name; 115 } 116 sb = b.loadLabel(pm); 117 if (sb == null) { 118 sb = (b.activityInfo != null) ? b.activityInfo.name : b.serviceInfo.name; 119 } 120 } 121 return sCollator.compare(sa.toString(), sb.toString()); 122 } 123 }; 124 125 public class DreamListAdapter extends BaseAdapter implements ListAdapter { 126 private ArrayList<ResolveInfo> results; 127 private final LayoutInflater inflater; 128 129 public DreamListAdapter(Context context) { 130 Intent choosy = new Intent(Intent.ACTION_MAIN) 131 .addCategory("android.intent.category.DREAM"); 132 133 inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 134 135 results = new ArrayList<ResolveInfo>(); 136 137 if (SHOW_DREAM_ACTIVITIES) { 138 results.addAll(pm.queryIntentActivities(choosy, PackageManager.GET_META_DATA)); 139 } 140 141 if (SHOW_DREAM_SERVICES) { 142 results.addAll(pm.queryIntentServices(choosy, PackageManager.GET_META_DATA)); 143 } 144 145 // Group by package 146 Collections.sort(results, sResolveInfoComparator); 147 148 if (SHOW_DOCK_APPS) { 149 choosy = new Intent(Intent.ACTION_MAIN) 150 .addCategory(Intent.CATEGORY_DESK_DOCK); 151 152 List<ResolveInfo> dockApps = pm.queryIntentActivities(choosy, 0); 153 for (ResolveInfo app : dockApps) { 154 // do not insert duplicate packages 155 int pos = Collections.binarySearch(results, app, sResolveInfoComparator); 156 if (pos < 0) { 157 results.add(-1-pos, app); 158 } 159 } 160 } 161 } 162 163 @Override 164 public int getCount() { 165 return results.size(); 166 } 167 168 @Override 169 public Object getItem(int position) { 170 return results.get(position); 171 } 172 173 @Override 174 public long getItemId (int position) { 175 return (long) position; 176 } 177 178 private CharSequence loadDescription(ResolveInfo ri) { 179 CharSequence desc = null; 180 if (ri != null) { 181 Bundle metaData = (ri.activityInfo != null) ? ri.activityInfo.metaData : ri.serviceInfo.metaData; 182 Log.d(TAG, "loadDescription: ri=" + ri + " metaData=" + metaData); 183 if (metaData != null) { 184 desc = metaData.getCharSequence("android.screensaver.description"); 185 Log.d(TAG, "loadDescription: desc=" + desc); 186 if (desc != null) { 187 desc = desc.toString().trim(); 188 } 189 } 190 } 191 return desc; 192 } 193 194 @Override 195 public View getView(int position, View convertView, ViewGroup parent) { 196 View row = (convertView != null) 197 ? convertView 198 : inflater.inflate(R.layout.dream_picker_row, parent, false); 199 ResolveInfo ri = results.get(position); 200 ((TextView)row.findViewById(R.id.title)).setText(ri.loadLabel(pm)); 201 ((ImageView)row.findViewById(R.id.icon)).setImageDrawable(ri.loadIcon(pm)); 202 return row; 203 } 204 } 205 206 @Override 207 protected void onClick() { 208 final DreamListAdapter list = new DreamListAdapter(getContext()); 209 AlertDialog alert = new AlertDialog.Builder(getContext()) 210 .setAdapter( 211 list, 212 new DialogInterface.OnClickListener() { 213 @Override 214 public void onClick(DialogInterface dialog, int which) { 215 ResolveInfo ri = (ResolveInfo)list.getItem(which); 216 String pn = (ri.activityInfo != null) ? ri.activityInfo.applicationInfo.packageName 217 : ri.serviceInfo.applicationInfo.packageName; 218 String n = (ri.activityInfo != null) ? ri.activityInfo.name : ri.serviceInfo.name; 219 ComponentName cn = new ComponentName(pn, n); 220 221 setSummary(ri.loadLabel(pm)); 222 //getContext().startActivity(intent); 223 224 IDreamManager dm = IDreamManager.Stub.asInterface( 225 ServiceManager.getService("dreams")); 226 try { 227 dm.setDreamComponent(cn); 228 } catch (RemoteException ex) { 229 // too bad, so sad, oh mom, oh dad 230 } 231 } 232 }) 233 .create(); 234 alert.show(); 235 } 236 } 237
