Adding search for dynamic print settings.

The print service list is dynamically constructed, therefore we need
a local provider that will emit print service data to be indexed.

bug:13929163

Change-Id: I51d5ae40c00edc6be7b212dc8aa08fd7ebfbf349

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

@@ -40,6 +40,7 @@ import android.print.PrintJobInfo;
 import android.print.PrintManager;
 import android.print.PrintManager.PrintJobStateChangeListener;
 import android.printservice.PrintServiceInfo;
+import android.provider.SearchIndexableResource;
 import android.provider.Settings;
 import android.text.TextUtils;
 import android.text.format.DateUtils;
@@ -49,6 +50,7 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.Switch;
 import android.widget.TextView;
 
@@ -56,6 +58,9 @@ import com.android.internal.content.PackageMonitor;
 import com.android.settings.DialogCreatable;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settings.search.Indexable;;
+import com.android.settings.search.SearchIndexableRaw;
 
 import java.text.DateFormat;
 import java.util.ArrayList;
@@ -64,7 +69,8 @@ import java.util.List;
 /**
  * Fragment with the top level print settings.
  */
-public class PrintSettingsFragment extends SettingsPreferenceFragment implements DialogCreatable {
+public class PrintSettingsFragment extends SettingsPreferenceFragment
+        implements DialogCreatable, Indexable {
 
     static final char ENABLED_PRINT_SERVICES_SEPARATOR = ':';
 
@@ -544,4 +550,43 @@ public class PrintSettingsFragment extends SettingsPreferenceFragment implements
             return false;
         }
     }
+
+    public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider() {
+        @Override
+        public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
+            List<SearchIndexableRaw> indexables = new ArrayList<SearchIndexableRaw>();
+
+            PackageManager packageManager = context.getPackageManager();
+            PrintManager printManager = (PrintManager) context.getSystemService(
+                    Context.PRINT_SERVICE);
+
+            String screenTitle = context.getResources().getString(R.string.print_settings_title);
+
+            // Indexing all services, reagardles if enabled.
+            List<PrintServiceInfo> services = printManager.getInstalledPrintServices();
+            final int serviceCount = services.size();
+            for (int i = 0; i < serviceCount; i++) {
+                PrintServiceInfo service = services.get(i);
+                SearchIndexableRaw indexable = new SearchIndexableRaw(context);
+                indexable.title = service.getResolveInfo().loadLabel(packageManager).toString();
+                indexable.summaryOn = context.getString(R.string.print_feature_state_on);
+                indexable.summaryOff = context.getString(R.string.print_feature_state_off);
+                indexable.screenTitle = screenTitle;
+                indexables.add(indexable);
+            }
+
+            return indexables;
+        }
+
+        @Override
+        public List<SearchIndexableResource> getXmlResourcesToIndex(Context context,
+                boolean enabled) {
+            List<SearchIndexableResource> indexables = new ArrayList<SearchIndexableResource>();
+            SearchIndexableResource indexable = new SearchIndexableResource(context);
+            indexable.xmlResId = R.xml.print_settings;
+            indexables.add(indexable);
+            return indexables;
+        }
+    };
 }

src/com/android/settings/search/SearchIndexableRaw.java

@@ -28,12 +28,34 @@ import android.provider.SearchIndexableData;
  */
 public class SearchIndexableRaw extends SearchIndexableData {
 
+    /**
+     * Title's raw data.
+     */
     public String title;
+
+    /**
+     * Summary's raw data when the data is "ON".
+     */
     public String summaryOn;
+
+    /**
+     * Summary's raw data when the data is "OFF".
+     */
     public String summaryOff;
+
+    /**
+     * Entries associated with the raw data (when the data can have several values).
+     */
     public String entries;
+
+    /**
+     * Keywords' raw data.
+     */
     public String keywords;
 
+    /**
+     * Fragment's or Activity's title associated with the raw data.
+     */
     public String screenTitle;
 
     public SearchIndexableRaw(Context context) {

src/com/android/settings/search/SearchIndexableResources.java

@@ -192,7 +192,7 @@ public final class SearchIndexableResources {
 
         sResMap.put(PrintSettingsFragment.class.getName(),
                 new SearchIndexableResource(RANK_PRINTING,
-                        R.xml.print_settings,
+                        NO_DATA_RES_ID,
                         PrintSettingsFragment.class.getName(),
                         com.android.internal.R.drawable.ic_print));