src/com/android/settings/print/PrintSettingsFragment.java

   1 /*
   2  * Copyright (C) 2013 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.print;
  18
  19 import android.app.ActivityManager;
  20 import android.app.LoaderManager.LoaderCallbacks;
  21 import android.content.AsyncTaskLoader;
  22 import android.content.ComponentName;
  23 import android.content.ContentResolver;
  24 import android.content.Context;
  25 import android.content.Intent;
  26 import android.content.Loader;
  27 import android.content.pm.PackageManager;
  28 import android.content.pm.ResolveInfo;
  29 import android.database.ContentObserver;
  30 import android.net.Uri;
  31 import android.os.Bundle;
  32 import android.os.Handler;
  33 import android.os.Message;
  34 import android.os.UserHandle;
  35 import android.os.UserManager;
  36 import android.os.Process;
  37 import android.preference.Preference;
  38 import android.preference.PreferenceCategory;
  39 import android.preference.PreferenceScreen;
  40 import android.print.PrintJob;
  41 import android.print.PrintJobId;
  42 import android.print.PrintJobInfo;
  43 import android.print.PrintManager;
  44 import android.print.PrintManager.PrintJobStateChangeListener;
  45 import android.printservice.PrintServiceInfo;
  46 import android.provider.SearchIndexableResource;
  47 import android.provider.Settings;
  48 import android.text.TextUtils;
  49 import android.text.format.DateUtils;
  50 import android.util.Log;
  51 import android.view.Menu;
  52 import android.view.MenuInflater;
  53 import android.view.MenuItem;
  54 import android.view.View;
  55 import android.view.ViewGroup;
  56 import android.widget.AdapterView;
  57 import android.widget.TextView;
  58
  59 import com.android.internal.content.PackageMonitor;
  60 import com.android.settings.UserSpinnerAdapter;
  61 import com.android.settings.UserSpinnerAdapter.UserDetails;
  62 import com.android.settings.DialogCreatable;
  63 import com.android.settings.R;
  64 import com.android.settings.SettingsPreferenceFragment;
  65 import com.android.settings.Utils;
  66 import com.android.settings.search.BaseSearchIndexProvider;
  67 import com.android.settings.search.Indexable;
  68 import com.android.settings.search.SearchIndexableRaw;
  69
  70 import java.text.DateFormat;
  71 import java.util.ArrayList;
  72 import java.util.List;
  73
  74 import android.widget.AdapterView.OnItemSelectedListener;
  75 import android.widget.Spinner;
  76
  77 /**
  78  * Fragment with the top level print settings.
  79  */
  80 public class PrintSettingsFragment extends SettingsPreferenceFragment
  81         implements DialogCreatable, Indexable, OnItemSelectedListener {
  82
  83     private static final int LOADER_ID_PRINT_JOBS_LOADER = 1;
  84
  85     private static final String PRINT_JOBS_CATEGORY = "print_jobs_category";
  86     private static final String PRINT_SERVICES_CATEGORY = "print_services_category";
  87
  88     // Extras passed to sub-fragments.
  89     static final String EXTRA_PREFERENCE_KEY = "EXTRA_PREFERENCE_KEY";
  90     static final String EXTRA_CHECKED = "EXTRA_CHECKED";
  91     static final String EXTRA_TITLE = "EXTRA_TITLE";
  92     static final String EXTRA_ENABLE_WARNING_TITLE = "EXTRA_ENABLE_WARNING_TITLE";
  93     static final String EXTRA_ENABLE_WARNING_MESSAGE = "EXTRA_ENABLE_WARNING_MESSAGE";
  94     static final String EXTRA_SETTINGS_TITLE = "EXTRA_SETTINGS_TITLE";
  95     static final String EXTRA_SETTINGS_COMPONENT_NAME = "EXTRA_SETTINGS_COMPONENT_NAME";
  96     static final String EXTRA_ADD_PRINTERS_TITLE = "EXTRA_ADD_PRINTERS_TITLE";
  97     static final String EXTRA_ADD_PRINTERS_COMPONENT_NAME = "EXTRA_ADD_PRINTERS_COMPONENT_NAME";
  98     static final String EXTRA_SERVICE_COMPONENT_NAME = "EXTRA_SERVICE_COMPONENT_NAME";
  99
 100     static final String EXTRA_PRINT_JOB_ID = "EXTRA_PRINT_JOB_ID";
 101
 102     private static final String EXTRA_PRINT_SERVICE_COMPONENT_NAME =
 103             "EXTRA_PRINT_SERVICE_COMPONENT_NAME";
 104
 105     private final PackageMonitor mSettingsPackageMonitor = new SettingsPackageMonitor();
 106
 107     private final Handler mHandler = new Handler() {
 108         @Override
 109         public void dispatchMessage(Message msg) {
 110             updateServicesPreferences();
 111         }
 112     };
 113
 114     private final SettingsContentObserver mSettingsContentObserver =
 115             new SettingsContentObserver(mHandler) {
 116         @Override
 117         public void onChange(boolean selfChange, Uri uri) {
 118             updateServicesPreferences();
 119         }
 120     };
 121
 122     private PreferenceCategory mActivePrintJobsCategory;
 123     private PreferenceCategory mPrintServicesCategory;
 124
 125     private PrintJobsController mPrintJobsController;
 126     private UserSpinnerAdapter mProfileSpinnerAdapter;
 127
 128     @Override
 129     public void onCreate(Bundle icicle) {
 130         super.onCreate(icicle);
 131         addPreferencesFromResource(R.xml.print_settings);
 132
 133         mActivePrintJobsCategory = (PreferenceCategory) findPreference(
 134                 PRINT_JOBS_CATEGORY);
 135         mPrintServicesCategory = (PreferenceCategory) findPreference(
 136                 PRINT_SERVICES_CATEGORY);
 137         getPreferenceScreen().removePreference(mActivePrintJobsCategory);
 138
 139         mPrintJobsController = new PrintJobsController();
 140         getActivity().getLoaderManager().initLoader(LOADER_ID_PRINT_JOBS_LOADER,
 141                 null, mPrintJobsController);
 142     }
 143
 144     @Override
 145     public void onResume() {
 146         super.onResume();
 147         mSettingsPackageMonitor.register(getActivity(), getActivity().getMainLooper(), false);
 148         mSettingsContentObserver.register(getContentResolver());
 149         updateServicesPreferences();
 150         setHasOptionsMenu(true);
 151         startSubSettingsIfNeeded();
 152     }
 153
 154     @Override
 155     public void onPause() {
 156         mSettingsPackageMonitor.unregister();
 157         mSettingsContentObserver.unregister(getContentResolver());
 158         super.onPause();
 159     }
 160
 161     @Override
 162     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 163         super.onCreateOptionsMenu(menu, inflater);
 164         String searchUri = Settings.Secure.getString(getContentResolver(),
 165                 Settings.Secure.PRINT_SERVICE_SEARCH_URI);
 166         if (!TextUtils.isEmpty(searchUri)) {
 167             MenuItem menuItem = menu.add(R.string.print_menu_item_add_service);
 168             menuItem.setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_NEVER);
 169             menuItem.setIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(searchUri)));
 170         }
 171     }
 172
 173     @Override
 174     public void onViewCreated(View view, Bundle savedInstanceState) {
 175         super.onViewCreated(view, savedInstanceState);
 176         ViewGroup contentRoot = (ViewGroup) getListView().getParent();
 177         View emptyView = getActivity().getLayoutInflater().inflate(
 178                 R.layout.empty_print_state, contentRoot, false);
 179         TextView textView = (TextView) emptyView.findViewById(R.id.message);
 180         textView.setText(R.string.print_no_services_installed);
 181         contentRoot.addView(emptyView);
 182         getListView().setEmptyView(emptyView);
 183
 184         final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
 185         mProfileSpinnerAdapter = Utils.createUserSpinnerAdapter(um, getActivity());
 186         if (mProfileSpinnerAdapter != null) {
 187             Spinner spinner = (Spinner) getActivity().getLayoutInflater().inflate(
 188                     R.layout.spinner_view, null);
 189             spinner.setAdapter(mProfileSpinnerAdapter);
 190             spinner.setOnItemSelectedListener(this);
 191             setPinnedHeaderView(spinner);
 192         }
 193     }
 194
 195     private void updateServicesPreferences() {
 196         if (getPreferenceScreen().findPreference(PRINT_SERVICES_CATEGORY) == null) {
 197             getPreferenceScreen().addPreference(mPrintServicesCategory);
 198         } else {
 199             // Since services category is auto generated we have to do a pass
 200             // to generate it since services can come and go.
 201             mPrintServicesCategory.removeAll();
 202         }
 203
 204         List<ComponentName> enabledServices = PrintSettingsUtils
 205                 .readEnabledPrintServices(getActivity());
 206
 207         List<ResolveInfo> installedServices = getActivity().getPackageManager()
 208                 .queryIntentServices(
 209                         new Intent(android.printservice.PrintService.SERVICE_INTERFACE),
 210                         PackageManager.GET_SERVICES | PackageManager.GET_META_DATA);
 211
 212         final int installedServiceCount = installedServices.size();
 213         for (int i = 0; i < installedServiceCount; i++) {
 214             ResolveInfo installedService = installedServices.get(i);
 215
 216             PreferenceScreen preference = getPreferenceManager().createPreferenceScreen(
 217                     getActivity());
 218
 219             String title = installedService.loadLabel(getPackageManager()).toString();
 220             preference.setTitle(title);
 221
 222             ComponentName componentName = new ComponentName(
 223                     installedService.serviceInfo.packageName,
 224                     installedService.serviceInfo.name);
 225             preference.setKey(componentName.flattenToString());
 226
 227             preference.setOrder(i);
 228             preference.setFragment(PrintServiceSettingsFragment.class.getName());
 229             preference.setPersistent(false);
 230
 231             final boolean serviceEnabled = enabledServices.contains(componentName);
 232             if (serviceEnabled) {
 233                 preference.setSummary(getString(R.string.print_feature_state_on));
 234             } else {
 235                 preference.setSummary(getString(R.string.print_feature_state_off));
 236             }
 237
 238             Bundle extras = preference.getExtras();
 239             extras.putString(EXTRA_PREFERENCE_KEY, preference.getKey());
 240             extras.putBoolean(EXTRA_CHECKED, serviceEnabled);
 241             extras.putString(EXTRA_TITLE, title);
 242
 243             PrintServiceInfo printServiceInfo = PrintServiceInfo.create(
 244                     installedService, getActivity());
 245
 246             CharSequence applicationLabel = installedService.loadLabel(getPackageManager());
 247
 248             extras.putString(EXTRA_ENABLE_WARNING_TITLE, getString(
 249                     R.string.print_service_security_warning_title, applicationLabel));
 250             extras.putString(EXTRA_ENABLE_WARNING_MESSAGE, getString(
 251                     R.string.print_service_security_warning_summary, applicationLabel));
 252
 253             String settingsClassName = printServiceInfo.getSettingsActivityName();
 254             if (!TextUtils.isEmpty(settingsClassName)) {
 255                 extras.putString(EXTRA_SETTINGS_TITLE,
 256                         getString(R.string.print_menu_item_settings));
 257                 extras.putString(EXTRA_SETTINGS_COMPONENT_NAME,
 258                         new ComponentName(installedService.serviceInfo.packageName,
 259                                 settingsClassName).flattenToString());
 260             }
 261
 262             String addPrinterClassName = printServiceInfo.getAddPrintersActivityName();
 263             if (!TextUtils.isEmpty(addPrinterClassName)) {
 264                 extras.putString(EXTRA_ADD_PRINTERS_TITLE,
 265                         getString(R.string.print_menu_item_add_printers));
 266                 extras.putString(EXTRA_ADD_PRINTERS_COMPONENT_NAME,
 267                         new ComponentName(installedService.serviceInfo.packageName,
 268                                 addPrinterClassName).flattenToString());
 269             }
 270
 271             extras.putString(EXTRA_SERVICE_COMPONENT_NAME, componentName.flattenToString());
 272
 273             mPrintServicesCategory.addPreference(preference);
 274         }
 275
 276         if (mPrintServicesCategory.getPreferenceCount() == 0) {
 277             getPreferenceScreen().removePreference(mPrintServicesCategory);
 278         }
 279     }
 280
 281     private void startSubSettingsIfNeeded() {
 282         if (getArguments() == null) {
 283             return;
 284         }
 285         String componentName = getArguments().getString(EXTRA_PRINT_SERVICE_COMPONENT_NAME);
 286         if (componentName != null) {
 287             getArguments().remove(EXTRA_PRINT_SERVICE_COMPONENT_NAME);
 288             Preference prereference = findPreference(componentName);
 289             if (prereference != null) {
 290                 prereference.performClick(getPreferenceScreen());
 291             }
 292         }
 293     }
 294
 295     @Override
 296     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
 297         UserHandle selectedUser = mProfileSpinnerAdapter.getUserHandle(position);
 298         if (selectedUser.getIdentifier() != UserHandle.myUserId()) {
 299             Intent intent = new Intent(Settings.ACTION_PRINT_SETTINGS);
 300             intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 301             intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
 302             getActivity().startActivityAsUser(intent, selectedUser);
 303         }
 304     }
 305
 306     @Override
 307     public void onNothingSelected(AdapterView<?> parent) {
 308         // Nothing to do
 309     }
 310
 311     private class SettingsPackageMonitor extends PackageMonitor {
 312         @Override
 313         public void onPackageAdded(String packageName, int uid) {
 314             mHandler.obtainMessage().sendToTarget();
 315         }
 316
 317         @Override
 318         public void onPackageAppeared(String packageName, int reason) {
 319             mHandler.obtainMessage().sendToTarget();
 320         }
 321
 322         @Override
 323         public void onPackageDisappeared(String packageName, int reason) {
 324             mHandler.obtainMessage().sendToTarget();
 325         }
 326
 327         @Override
 328         public void onPackageRemoved(String packageName, int uid) {
 329             mHandler.obtainMessage().sendToTarget();
 330         }
 331     }
 332
 333     private static abstract class SettingsContentObserver extends ContentObserver {
 334
 335         public SettingsContentObserver(Handler handler) {
 336             super(handler);
 337         }
 338
 339         public void register(ContentResolver contentResolver) {
 340             contentResolver.registerContentObserver(Settings.Secure.getUriFor(
 341                     Settings.Secure.ENABLED_PRINT_SERVICES), false, this);
 342         }
 343
 344         public void unregister(ContentResolver contentResolver) {
 345             contentResolver.unregisterContentObserver(this);
 346         }
 347
 348         @Override
 349         public abstract void onChange(boolean selfChange, Uri uri);
 350     }
 351
 352     private final class PrintJobsController implements LoaderCallbacks<List<PrintJobInfo>> {
 353
 354         @Override
 355         public Loader<List<PrintJobInfo>> onCreateLoader(int id, Bundle args) {
 356             if (id == LOADER_ID_PRINT_JOBS_LOADER) {
 357                 return new PrintJobsLoader(getActivity());
 358             }
 359             return null;
 360         }
 361
 362         @Override
 363         public void onLoadFinished(Loader<List<PrintJobInfo>> loader,
 364                 List<PrintJobInfo> printJobs) {
 365             if (printJobs == null || printJobs.isEmpty()) {
 366                 getPreferenceScreen().removePreference(mActivePrintJobsCategory);
 367             } else {
 368                 if (getPreferenceScreen().findPreference(PRINT_JOBS_CATEGORY) == null) {
 369                     getPreferenceScreen().addPreference(mActivePrintJobsCategory);
 370                 }
 371
 372                 mActivePrintJobsCategory.removeAll();
 373
 374                 final int printJobCount = printJobs.size();
 375                 for (int i = 0; i < printJobCount; i++) {
 376                     PrintJobInfo printJob = printJobs.get(i);
 377
 378                     PreferenceScreen preference = getPreferenceManager()
 379                             .createPreferenceScreen(getActivity());
 380
 381                     preference.setPersistent(false);
 382                     preference.setFragment(PrintJobSettingsFragment.class.getName());
 383                     preference.setKey(printJob.getId().flattenToString());
 384
 385                     switch (printJob.getState()) {
 386                         case PrintJobInfo.STATE_QUEUED:
 387                         case PrintJobInfo.STATE_STARTED: {
 388                             if (!printJob.isCancelling()) {
 389                                 preference.setTitle(getString(
 390                                         R.string.print_printing_state_title_template,
 391                                         printJob.getLabel()));
 392                             } else {
 393                                 preference.setTitle(getString(
 394                                         R.string.print_cancelling_state_title_template,
 395                                         printJob.getLabel()));
 396                             }
 397                         } break;
 398
 399                         case PrintJobInfo.STATE_FAILED: {
 400                             preference.setTitle(getString(
 401                                     R.string.print_failed_state_title_template,
 402                                     printJob.getLabel()));
 403                         } break;
 404
 405                         case PrintJobInfo.STATE_BLOCKED: {
 406                             if (!printJob.isCancelling()) {
 407                                 preference.setTitle(getString(
 408                                         R.string.print_blocked_state_title_template,
 409                                         printJob.getLabel()));
 410                             } else {
 411                                 preference.setTitle(getString(
 412                                         R.string.print_cancelling_state_title_template,
 413                                         printJob.getLabel()));
 414                             }
 415                         } break;
 416                     }
 417
 418                     preference.setSummary(getString(R.string.print_job_summary,
 419                             printJob.getPrinterName(), DateUtils.formatSameDayTime(
 420                                     printJob.getCreationTime(), printJob.getCreationTime(),
 421                                     DateFormat.SHORT, DateFormat.SHORT)));
 422
 423                     switch (printJob.getState()) {
 424                         case PrintJobInfo.STATE_QUEUED:
 425                         case PrintJobInfo.STATE_STARTED: {
 426                             preference.setIcon(R.drawable.ic_print);
 427                         } break;
 428
 429                         case PrintJobInfo.STATE_FAILED:
 430                         case PrintJobInfo.STATE_BLOCKED: {
 431                             preference.setIcon(R.drawable.ic_print_error);
 432                         } break;
 433                     }
 434
 435                     Bundle extras = preference.getExtras();
 436                     extras.putString(EXTRA_PRINT_JOB_ID, printJob.getId().flattenToString());
 437
 438                     mActivePrintJobsCategory.addPreference(preference);
 439                 }
 440             }
 441         }
 442
 443         @Override
 444         public void onLoaderReset(Loader<List<PrintJobInfo>> loader) {
 445             getPreferenceScreen().removePreference(mActivePrintJobsCategory);
 446         }
 447     }
 448
 449     private static final class PrintJobsLoader extends AsyncTaskLoader<List<PrintJobInfo>> {
 450
 451         private static final String LOG_TAG = "PrintJobsLoader";
 452
 453         private static final boolean DEBUG = false;
 454
 455         private List<PrintJobInfo> mPrintJobs = new ArrayList<PrintJobInfo>();
 456
 457         private final PrintManager mPrintManager;
 458
 459         private PrintJobStateChangeListener mPrintJobStateChangeListener;
 460
 461         public PrintJobsLoader(Context context) {
 462             super(context);
 463             mPrintManager = ((PrintManager) context.getSystemService(
 464                     Context.PRINT_SERVICE)).getGlobalPrintManagerForUser(
 465                         ActivityManager.getCurrentUser());
 466         }
 467
 468         @Override
 469         public void deliverResult(List<PrintJobInfo> printJobs) {
 470             if (isStarted()) {
 471                 super.deliverResult(printJobs);
 472             }
 473         }
 474
 475         @Override
 476         protected void onStartLoading() {
 477             if (DEBUG) {
 478                 Log.i(LOG_TAG, "onStartLoading()");
 479             }
 480             // If we already have a result, deliver it immediately.
 481             if (!mPrintJobs.isEmpty()) {
 482                 deliverResult(new ArrayList<PrintJobInfo>(mPrintJobs));
 483             }
 484             // Start watching for changes.
 485             if (mPrintJobStateChangeListener == null) {
 486                 mPrintJobStateChangeListener = new PrintJobStateChangeListener() {
 487                     @Override
 488                     public void onPrintJobStateChanged(PrintJobId printJobId) {
 489                         onForceLoad();
 490                     }
 491                 };
 492                 mPrintManager.addPrintJobStateChangeListener(
 493                         mPrintJobStateChangeListener);
 494             }
 495             // If the data changed or we have no data - load it now.
 496             if (mPrintJobs.isEmpty()) {
 497                 onForceLoad();
 498             }
 499         }
 500
 501         @Override
 502         protected void onStopLoading() {
 503             if (DEBUG) {
 504                 Log.i(LOG_TAG, "onStopLoading()");
 505             }
 506             // Cancel the load in progress if possible.
 507             onCancelLoad();
 508         }
 509
 510         @Override
 511         protected void onReset() {
 512             if (DEBUG) {
 513                 Log.i(LOG_TAG, "onReset()");
 514             }
 515             // Stop loading.
 516             onStopLoading();
 517             // Clear the cached result.
 518             mPrintJobs.clear();
 519             // Stop watching for changes.
 520             if (mPrintJobStateChangeListener != null) {
 521                 mPrintManager.removePrintJobStateChangeListener(
 522                         mPrintJobStateChangeListener);
 523                 mPrintJobStateChangeListener = null;
 524             }
 525         }
 526
 527         @Override
 528         public List<PrintJobInfo> loadInBackground() {
 529             List<PrintJobInfo> printJobInfos = null;
 530             List<PrintJob> printJobs = mPrintManager.getPrintJobs();
 531             final int printJobCount = printJobs.size();
 532             for (int i = 0; i < printJobCount; i++) {
 533                 PrintJobInfo printJob = printJobs.get(i).getInfo();
 534                 if (shouldShowToUser(printJob)) {
 535                     if (printJobInfos == null) {
 536                         printJobInfos = new ArrayList<PrintJobInfo>();
 537                     }
 538                     printJobInfos.add(printJob);
 539                 }
 540             }
 541             return printJobInfos;
 542         }
 543
 544         private static boolean shouldShowToUser(PrintJobInfo printJob) {
 545             switch (printJob.getState()) {
 546                 case PrintJobInfo.STATE_QUEUED:
 547                 case PrintJobInfo.STATE_STARTED:
 548                 case PrintJobInfo.STATE_BLOCKED:
 549                 case PrintJobInfo.STATE_FAILED: {
 550                     return true;
 551                 }
 552             }
 553             return false;
 554         }
 555     }
 556
 557     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
 558             new BaseSearchIndexProvider() {
 559         @Override
 560         public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
 561             List<SearchIndexableRaw> indexables = new ArrayList<SearchIndexableRaw>();
 562
 563             PackageManager packageManager = context.getPackageManager();
 564             PrintManager printManager = (PrintManager) context.getSystemService(
 565                     Context.PRINT_SERVICE);
 566
 567             String screenTitle = context.getResources().getString(R.string.print_settings);
 568             SearchIndexableRaw data = new SearchIndexableRaw(context);
 569             data.title = screenTitle;
 570             data.screenTitle = screenTitle;
 571             indexables.add(data);
 572
 573             // Indexing all services, regardless if enabled.
 574             List<PrintServiceInfo> services = printManager.getInstalledPrintServices();
 575             final int serviceCount = services.size();
 576             for (int i = 0; i < serviceCount; i++) {
 577                 PrintServiceInfo service = services.get(i);
 578
 579                 ComponentName componentName = new ComponentName(
 580                         service.getResolveInfo().serviceInfo.packageName,
 581                         service.getResolveInfo().serviceInfo.name);
 582
 583                 data = new SearchIndexableRaw(context);
 584                 data.key = componentName.flattenToString();
 585                 data.title = service.getResolveInfo().loadLabel(packageManager).toString();
 586                 data.summaryOn = context.getString(R.string.print_feature_state_on);
 587                 data.summaryOff = context.getString(R.string.print_feature_state_off);
 588                 data.screenTitle = screenTitle;
 589                 indexables.add(data);
 590             }
 591
 592             return indexables;
 593         }
 594
 595         @Override
 596         public List<SearchIndexableResource> getXmlResourcesToIndex(Context context,
 597                 boolean enabled) {
 598             List<SearchIndexableResource> indexables = new ArrayList<SearchIndexableResource>();
 599             SearchIndexableResource indexable = new SearchIndexableResource(context);
 600             indexable.xmlResId = R.xml.print_settings;
 601             indexables.add(indexable);
 602             return indexables;
 603         }
 604     };
 605 }