Remove the Settings search keywords from Slices

The keywords used for settings search are good when we are highly
confident the user is searching for as setting (settings search),
but not effective in a more general search setting (launcher,
an assistant). Thus, we should not index these keywords as Slice
keywords, and rely on the setting title and screen title as baseline
keywords.

Change-Id: I99e44834454b5949c4883f877e02be47498e06e2
Fixes: 78911847
Test: robotests

src/com/android/settings/slices/SettingsSliceProvider.java

@@ -42,7 +42,6 @@ import com.android.settingslib.utils.ThreadUtils;
 import java.net.URISyntaxException;
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.WeakHashMap;

src/com/android/settings/slices/SliceBuilderUtils.java

@@ -238,7 +238,7 @@ public class SliceBuilderUtils {
                 (TogglePreferenceController) controller;
         final SliceAction sliceAction = getToggleAction(context, sliceData,
                 toggleController.isChecked());
-        final List<String> keywords = buildSliceKeywords(sliceData.getKeywords());
+        final List<String> keywords = buildSliceKeywords(sliceData);
 
         return new ListBuilder(context, sliceData.getUri(), SLICE_TTL_MILLIS)
                 .addRow(rowBuilder -> rowBuilder
@@ -256,7 +256,7 @@ public class SliceBuilderUtils {
         final PendingIntent contentIntent = getContentPendingIntent(context, sliceData);
         final IconCompat icon = IconCompat.createWithResource(context, sliceData.getIconResource());
         final CharSequence subtitleText = getSubtitleText(context, controller, sliceData);
-        final List<String> keywords = buildSliceKeywords(sliceData.getKeywords());
+        final List<String> keywords = buildSliceKeywords(sliceData);
 
         return new ListBuilder(context, sliceData.getUri(), SLICE_TTL_MILLIS)
                 .addRow(rowBuilder -> rowBuilder
@@ -276,7 +276,7 @@ public class SliceBuilderUtils {
         final IconCompat icon = IconCompat.createWithResource(context, sliceData.getIconResource());
         final SliceAction primaryAction = new SliceAction(contentIntent, icon,
                 sliceData.getTitle());
-        final List<String> keywords = buildSliceKeywords(sliceData.getKeywords());
+        final List<String> keywords = buildSliceKeywords(sliceData);
 
         return new ListBuilder(context, sliceData.getUri(), SLICE_TTL_MILLIS)
                 .addInputRange(builder -> builder
@@ -324,19 +324,28 @@ public class SliceBuilderUtils {
                 || TextUtils.equals(summary, doublePlaceHolder));
     }
 
-    private static List<String> buildSliceKeywords(String keywordString) {
-        if (keywordString == null) {
-            return new ArrayList<>();
+    private static List<String> buildSliceKeywords(SliceData data) {
+        final List<String> keywords = new ArrayList<>();
+
+        keywords.add(data.getTitle());
+
+        if (!TextUtils.equals(data.getTitle(), data.getScreenTitle())) {
+            keywords.add(data.getScreenTitle().toString());
         }
 
-        final String[] keywords = keywordString.split(",");
-        return Arrays.asList(keywords);
+        final String keywordString = data.getKeywords();
+        if (keywordString != null) {
+            final String[] keywordArray = keywordString.split(",");
+            keywords.addAll(Arrays.asList(keywordArray));
+        }
+
+        return keywords;
     }
 
     private static Slice buildUnavailableSlice(Context context, SliceData data,
             BasePreferenceController controller) {
         final String title = data.getTitle();
-        final List<String> keywords = buildSliceKeywords(data.getKeywords());
+        final List<String> keywords = buildSliceKeywords(data);
         final String summary;
         final SliceAction primaryAction;
         final IconCompat icon = IconCompat.createWithResource(context, data.getIconResource());

src/com/android/settings/slices/SliceDataConverter.java

@@ -185,7 +185,6 @@ class SliceDataConverter {
                             | MetadataFlag.FLAG_NEED_PREF_TITLE
                             | MetadataFlag.FLAG_NEED_PREF_ICON
                             | MetadataFlag.FLAG_NEED_PREF_SUMMARY
-                            | MetadataFlag.FLAG_NEED_KEYWORDS
                             | MetadataFlag.FLAG_NEED_PLATFORM_SLICE_FLAG);
 
             for (Bundle bundle : metadata) {
@@ -198,7 +197,6 @@ class SliceDataConverter {
                 final String key = bundle.getString(METADATA_KEY);
                 final String title = bundle.getString(METADATA_TITLE);
                 final String summary = bundle.getString(METADATA_SUMMARY);
-                final String keywords = bundle.getString(METADATA_KEYWORDS);
                 final int iconResId = bundle.getInt(METADATA_ICON);
                 final int sliceType = SliceBuilderUtils.getSliceType(mContext, controllerClassName,
                         key);
@@ -210,7 +208,6 @@ class SliceDataConverter {
                         .setSummary(summary)
                         .setIcon(iconResId)
                         .setScreenTitle(screenTitle)
-                        .setKeywords(keywords)
                         .setPreferenceControllerClassName(controllerClassName)
                         .setFragmentName(fragmentName)
                         .setSliceType(sliceType)

tests/robotests/src/com/android/settings/slices/SliceDataConverterTest.java

@@ -56,7 +56,6 @@ public class SliceDataConverterTest {
     private static final String FAKE_TITLE = "title";
     private static final String FAKE_SUMMARY = "summary";
     private static final String FAKE_SCREEN_TITLE = "screen_title";
-    private static final String FAKE_KEYWORDS = "a, b, c";
     private static final String FAKE_FRAGMENT_CLASSNAME = FakeIndexProvider.class.getName();
     private static final String FAKE_CONTROLLER_NAME = FakePreferenceController.class.getName();
     private static final String ACCESSIBILITY_FRAGMENT = AccessibilitySettings.class.getName();
@@ -118,7 +117,7 @@ public class SliceDataConverterTest {
         assertThat(fakeSlice.getTitle()).isEqualTo(FAKE_TITLE);
         assertThat(fakeSlice.getSummary()).isEqualTo(FAKE_SUMMARY);
         assertThat(fakeSlice.getScreenTitle()).isEqualTo(FAKE_SCREEN_TITLE);
-        assertThat(fakeSlice.getKeywords()).isEqualTo(FAKE_KEYWORDS);
+        assertThat(fakeSlice.getKeywords()).isNull();
         assertThat(fakeSlice.getIconResource()).isNotNull();
         assertThat(fakeSlice.getUri()).isNull();
         assertThat(fakeSlice.getFragmentClassName()).isEqualTo(FAKE_FRAGMENT_CLASSNAME);

tests/robotests/src/com/android/settings/testutils/SliceTester.java

@@ -30,7 +30,9 @@ import android.app.PendingIntent;
 import android.content.Context;
 
 import java.util.Arrays;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 import androidx.slice.Slice;
 import androidx.slice.SliceItem;
@@ -188,7 +190,10 @@ public class SliceTester {
 
     private static void assertKeywords(SliceMetadata metadata, SliceData data) {
         final List<String> keywords = metadata.getSliceKeywords();
-        final List<String> expectedKeywords = Arrays.asList(data.getKeywords().split(","));
+        final Set<String> expectedKeywords = new HashSet<>(
+                Arrays.asList(data.getKeywords().split(",")));
+        expectedKeywords.add(data.getTitle());
+        expectedKeywords.add(data.getScreenTitle().toString());
         assertThat(keywords).containsExactlyElementsIn(expectedKeywords);
     }
 }