Properly check wallpaper state before showing suggestion

The old check only considers static wallpaper. So if user set a dynamic
one we still think wallpaper is not set.

Change-Id: I3fa0908b29891cf7b90c24d5a63ce60d5985a70d
Fix: 34719455
Test: make RunSettingsRoboTests

src/com/android/settings/dashboard/suggestions/SuggestionsChecks.java

@@ -17,19 +17,13 @@
 package com.android.settings.dashboard.suggestions;
 
 import android.app.AutomaticZenRule;
-import android.app.IWallpaperManager;
-import android.app.IWallpaperManager.Stub;
-import android.app.IWallpaperManagerCallback;
 import android.app.KeyguardManager;
 import android.app.NotificationManager;
 import android.app.WallpaperManager;
 import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.hardware.fingerprint.FingerprintManager;
-import android.os.Bundle;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.os.ServiceManager;
+import android.support.annotation.VisibleForTesting;
 
 import com.android.ims.ImsManager;
 import com.android.settings.Settings.FingerprintEnrollSuggestionActivity;
@@ -49,10 +43,14 @@ import java.util.Collection;
  */
 public class SuggestionsChecks {
 
+    private static final String TAG = "SuggestionsChecks";
     private final Context mContext;
 
+    private final WallpaperManagerWrapper mWallpaperManager;
+
     public SuggestionsChecks(Context context) {
         mContext = context.getApplicationContext();
+        mWallpaperManager = new WallpaperManagerWrapper(mContext);
     }
 
     public boolean isSuggestionComplete(Tile suggestion) {
@@ -114,16 +112,9 @@ public class SuggestionsChecks {
         return false;
     }
 
-    private boolean hasWallpaperSet() {
-        IBinder b = ServiceManager.getService(Context.WALLPAPER_SERVICE);
-        IWallpaperManager service = Stub.asInterface(b);
-        try {
-            return !service.isSetWallpaperAllowed(mContext.getOpPackageName()) ||
-                    service.getWallpaper(mCallback, WallpaperManager.FLAG_SYSTEM,
-                            new Bundle(), mContext.getUserId()) != null;
-        } catch (RemoteException e) {
-        }
-        return false;
+    @VisibleForTesting
+    boolean hasWallpaperSet() {
+        return mWallpaperManager.getWallpaperId(WallpaperManager.FLAG_SYSTEM) > 0;
     }
 
     private boolean isFingerprintEnabled() {
@@ -133,11 +124,4 @@ public class SuggestionsChecks {
                 mContext.getUserId());
         return (dpmFlags & DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT) == 0;
     }
-
-    private final IWallpaperManagerCallback mCallback = new IWallpaperManagerCallback.Stub() {
-        @Override
-        public void onWallpaperChanged() throws RemoteException {
-             // Don't care.
-        }
-    };
 }

src/com/android/settings/dashboard/suggestions/WallpaperManagerWrapper.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.dashboard.suggestions;
+
+import android.app.WallpaperManager;
+import android.content.Context;
+
+public class WallpaperManagerWrapper {
+
+    private final WallpaperManager mWallpaperManager;
+
+    public WallpaperManagerWrapper(Context context) {
+        mWallpaperManager = (WallpaperManager) context.getSystemService(Context.WALLPAPER_SERVICE);
+    }
+
+    public int getWallpaperId(int which) {
+        return mWallpaperManager.getWallpaperId(which);
+    }
+}

tests/robotests/src/com/android/settings/dashboard/suggestions/SuggestionsChecksTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 Google Inc.
+ * Copyright (C) 2017 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,12 +17,12 @@
 package com.android.settings.dashboard.suggestions;
 
 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.eq;
 import static org.mockito.Mockito.when;
 
+import android.app.WallpaperManager;
 import android.app.admin.DevicePolicyManager;
 import android.content.ComponentName;
 import android.content.Context;
@@ -41,6 +41,8 @@ import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
+
 
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
@@ -54,7 +56,8 @@ public class SuggestionsChecksTest {
     private FingerprintManager mFingerprintManager;
     @Mock
     private DevicePolicyManager mDevicePolicyManager;
-
+    @Mock
+    private WallpaperManagerWrapper mWallpaperManager;
     private SuggestionsChecks mSuggestionsChecks;
 
     @Before
@@ -118,4 +121,24 @@ public class SuggestionsChecksTest {
                 Settings.FingerprintEnrollSuggestionActivity.class));
         return tile;
     }
+
+    @Test
+    public void hasWallpaperSet_no_shouldReturnFalse() {
+        ReflectionHelpers.setField(mSuggestionsChecks, "mWallpaperManager", mWallpaperManager);
+        when(mWallpaperManager.getWallpaperId(WallpaperManager.FLAG_SYSTEM))
+                .thenReturn(0);
+
+        assertThat(mSuggestionsChecks.hasWallpaperSet())
+                .isFalse();
+    }
+
+    @Test
+    public void hasWallpaperSet_yes_shouldReturnTrue() {
+        ReflectionHelpers.setField(mSuggestionsChecks, "mWallpaperManager", mWallpaperManager);
+        when(mWallpaperManager.getWallpaperId(WallpaperManager.FLAG_SYSTEM))
+                .thenReturn(100);
+
+        assertThat(mSuggestionsChecks.hasWallpaperSet())
+                .isTrue();
+    }
 }