Support "Add account" search indexing

Implement a default getRawDataToIndex method of preference controller
base for indexing preference's raw data.

Test: manual, robotest
Fix: 243899250
Change-Id: I3fb4f88c881edcbaa3c5bfc7f78cc2e169b0380f

src/com/android/settings/accounts/AccountPreferenceController.java

@@ -187,6 +187,11 @@ public class AccountPreferenceController extends AbstractPreferenceController
         updateUi();
     }
 
+    @Override
+    public void updateRawDataToIndex(List<SearchIndexableRaw> rawData) {
+        rawData.add(newAddAccountRawData());
+    }
+
     @Override
     public void updateDynamicRawDataToIndex(List<SearchIndexableRaw> rawData) {
         if (!isAvailable()) {
@@ -428,6 +433,14 @@ public class AccountPreferenceController extends AbstractPreferenceController
         }));
     }
 
+    private SearchIndexableRaw newAddAccountRawData() {
+        SearchIndexableRaw data = new SearchIndexableRaw(mContext);
+        data.key = PREF_KEY_ADD_ACCOUNT;
+        data.title = mContext.getString(R.string.add_account_label);
+        data.iconResId = R.drawable.ic_add_24dp;
+        return data;
+    }
+
     private RestrictedPreference newAddAccountPreference() {
         RestrictedPreference preference =
                 new RestrictedPreference(mFragment.getPreferenceManager().getContext());

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

@@ -73,7 +73,19 @@ public class BaseSearchIndexProvider implements Indexable.SearchIndexProvider {
 
     @Override
     public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
-        return null;
+        final List<SearchIndexableRaw> raws = new ArrayList<>();
+        final List<AbstractPreferenceController> controllers = getPreferenceControllers(context);
+        if (controllers == null || controllers.isEmpty()) {
+            return raws;
+        }
+        for (AbstractPreferenceController controller : controllers) {
+            if (controller instanceof PreferenceControllerMixin) {
+                ((PreferenceControllerMixin) controller).updateRawDataToIndex(raws);
+            } else if (controller instanceof BasePreferenceController) {
+                ((BasePreferenceController) controller).updateRawDataToIndex(raws);
+            }
+        }
+        return raws;
     }
 
     @Override

tests/robotests/src/com/android/settings/accounts/AccountPreferenceControllerTest.java

@@ -254,25 +254,26 @@ public class AccountPreferenceControllerTest {
     }
 
     @Test
-    public void updateRawDataToIndex_ManagedProfile_shouldNotUpdate() {
+    public void updateRawDataToIndex_noManagedProfile_shouldContainAddAccount() {
+        final List<SearchIndexableRaw> data = new ArrayList<>();
+        when(mUserManager.isManagedProfile()).thenReturn(false);
+
+        mController.updateRawDataToIndex(data);
+
+        assertThat(data).hasSize(1);
+        assertThat(data.get(0).key).isEqualTo("add_account");
+    }
+
+
+    @Test
+    public void updateRawDataToIndex_ManagedProfile_shouldContainAddAccount() {
         final List<SearchIndexableRaw> data = new ArrayList<>();
         when(mUserManager.isManagedProfile()).thenReturn(true);
 
         mController.updateRawDataToIndex(data);
 
-        assertThat(data).isEmpty();
+        assertThat(data).hasSize(1);
-    }
+        assertThat(data.get(0).key).isEqualTo("add_account");
-
-    @Test
-    public void updateRawDataToIndex_DisabledUser_shouldNotUpdate() {
-        final List<SearchIndexableRaw> data = new ArrayList<>();
-        final List<UserInfo> infos = new ArrayList<>();
-        infos.add(new UserInfo(1, "user 1", UserInfo.FLAG_DISABLED));
-        when(mUserManager.isManagedProfile()).thenReturn(false);
-        when(mUserManager.getProfiles(anyInt())).thenReturn(infos);
-        mController.updateRawDataToIndex(data);
-
-        assertThat(data).isEmpty();
     }
 
     @Test