Include home app when searching installed apps

Change-Id: I4677307bb23f03ed7fb224c32312be7cb114763d
Fix: 62221174
Test: make RunSettingsRoboTests

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

@@ -37,6 +37,7 @@ import com.android.settings.applications.PackageManagerWrapper;
 import com.android.settings.dashboard.SiteMapManager;
 import com.android.settings.utils.AsyncLoader;
 
+import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -55,7 +56,7 @@ public class InstalledAppResultLoader extends AsyncLoader<Set<? extends SearchRe
     private final String mQuery;
     private final UserManager mUserManager;
     private final PackageManagerWrapper mPackageManager;
-
+    private final List<ResolveInfo> mHomeActivities = new ArrayList<>();
 
     public InstalledAppResultLoader(Context context, PackageManagerWrapper pmWrapper,
             String query, SiteMapManager mapManager) {
@@ -71,6 +72,9 @@ public class InstalledAppResultLoader extends AsyncLoader<Set<? extends SearchRe
         final Set<AppSearchResult> results = new HashSet<>();
         final PackageManager pm = mPackageManager.getPackageManager();
 
+        mHomeActivities.clear();
+        mPackageManager.getHomeActivities(mHomeActivities);
+
         for (UserInfo user : getUsersToCount()) {
             final List<ApplicationInfo> apps =
                     mPackageManager.getInstalledApplicationsAsUser(
@@ -106,11 +110,18 @@ public class InstalledAppResultLoader extends AsyncLoader<Set<? extends SearchRe
         return results;
     }
 
+    /**
+     * Returns true if the candidate should be included in candidate list
+     * <p/>
+     * This method matches logic in {@code ApplicationState#FILTER_DOWNLOADED_AND_LAUNCHER}.
+     */
     private boolean shouldIncludeAsCandidate(ApplicationInfo info, UserInfo user) {
+        // Not system app
         if ((info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0
                 || (info.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {
             return true;
         }
+        // Shows up in launcher
         final Intent launchIntent = new Intent(LAUNCHER_PROBE)
                 .setPackage(info.packageName);
         final List<ResolveInfo> intents = mPackageManager.queryIntentActivitiesAsUser(
@@ -119,7 +130,11 @@ public class InstalledAppResultLoader extends AsyncLoader<Set<? extends SearchRe
                         | PackageManager.MATCH_DIRECT_BOOT_AWARE
                         | PackageManager.MATCH_DIRECT_BOOT_UNAWARE,
                 user.id);
-        return intents != null && intents.size() != 0;
+        if (intents != null && intents.size() != 0) {
+            return true;
+        }
+        // Is launcher app itself
+        return isPackageInList(mHomeActivities, info.packageName);
     }
 
     @Override
@@ -194,6 +209,15 @@ public class InstalledAppResultLoader extends AsyncLoader<Set<? extends SearchRe
         return NAME_NO_MATCH;
     }
 
+    private boolean isPackageInList(List<ResolveInfo> resolveInfos, String pkg) {
+        for (ResolveInfo info : resolveInfos) {
+            if (TextUtils.equals(info.activityInfo.packageName, pkg)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     private List<String> getBreadCrumb() {
         if (mBreadcrumb == null || mBreadcrumb.isEmpty()) {
             final Context context = getContext();
@@ -206,6 +230,7 @@ public class InstalledAppResultLoader extends AsyncLoader<Set<? extends SearchRe
 
     /**
      * A temporary ranking scheme for installed apps.
+     *
      * @param wordDiff difference between query length and app name length.
      * @return the ranking.
      */

tests/robotests/src/com/android/settings/search/InstalledAppResultLoaderTest.java

@@ -19,6 +19,7 @@ package com.android.settings.search;
 
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.ActivityInfo;
 import android.content.pm.ResolveInfo;
 import android.content.pm.UserInfo;
 import android.os.UserManager;
@@ -28,8 +29,6 @@ import com.android.settings.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
 import com.android.settings.applications.PackageManagerWrapper;
 import com.android.settings.dashboard.SiteMapManager;
-import com.android.settings.search.InstalledAppResultLoader;
-import com.android.settings.search.SearchResult;
 import com.android.settings.testutils.ApplicationTestUtils;
 import com.android.settings.testutils.FakeFeatureFactory;
 
@@ -39,6 +38,8 @@ import org.junit.runner.RunWith;
 import org.mockito.Answers;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
 import org.robolectric.annotation.Config;
 
 import java.util.ArrayList;
@@ -52,6 +53,7 @@ import static android.content.pm.ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
 import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyList;
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.mock;
@@ -166,6 +168,36 @@ public class InstalledAppResultLoaderTest {
         assertThat(mLoader.loadInBackground().size()).isEqualTo(1);
     }
 
+    @Test
+    public void query_matchingQuery_shouldReturnSystemAppIfHomeApp() {
+        when(mPackageManagerWrapper.getInstalledApplicationsAsUser(anyInt(), anyInt()))
+                .thenReturn(Arrays.asList(
+                        ApplicationTestUtils.buildInfo(0 /* uid */, "app1", FLAG_SYSTEM,
+                                0 /* targetSdkVersion */)));
+        when(mPackageManagerWrapper.queryIntentActivitiesAsUser(
+                any(Intent.class), anyInt(), anyInt()))
+                .thenReturn(null);
+
+        when(mPackageManagerWrapper.getHomeActivities(anyList())).thenAnswer(new Answer<Object>() {
+            @Override
+            public Object answer(InvocationOnMock invocation) throws Throwable {
+                final List<ResolveInfo> list = (List<ResolveInfo>) invocation.getArguments()[0];
+                final ResolveInfo info = new ResolveInfo();
+                info.activityInfo = new ActivityInfo();
+                info.activityInfo.packageName = "app1";
+                list.add(info);
+                return null;
+            }
+        });
+
+        final String query = "app";
+
+        mLoader = new InstalledAppResultLoader(mContext, mPackageManagerWrapper, query,
+                mSiteMapManager);
+
+        assertThat(mLoader.loadInBackground().size()).isEqualTo(1);
+    }
+
     @Test
     public void query_matchingQuery_shouldNotReturnSystemAppIfNotLaunchable() {
         when(mPackageManagerWrapper.getInstalledApplicationsAsUser(anyInt(), anyInt()))