Adding settings for managing auto-enter picture-in-picture.

- Add per-app setting for users to control whether an app can
  enter picture-in-picture when it is hidden.

Bug: 34520451
Test: make -j40 RunSettingsRoboTests
Change-Id: I182d6069ad01e42f1d3d6623ea21362ce802efba
Signed-off-by: Winson Chung <winsonc@google.com>

tests/robotests/src/com/android/settings/applications/PictureInPictureSettingsTest.java

@@ -0,0 +1,132 @@
+/*
+ * 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.applications;
+
+import android.content.Context;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageInfo;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.FakeFeatureFactory;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
+
+import java.lang.reflect.Field;
+
+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.argThat;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.atLeast;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.when;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class PictureInPictureSettingsTest {
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+
+    private FakeFeatureFactory mFeatureFactory;
+    private PictureInPictureSettings mFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        FakeFeatureFactory.setupForTest(mContext);
+        mFeatureFactory = (FakeFeatureFactory) FakeFeatureFactory.getFactory(mContext);
+        mFragment = new PictureInPictureSettings();
+    }
+
+    @Test
+    public void testIgnoredApp() {
+        for (String ignoredPackage : mFragment.IGNORE_PACKAGE_LIST) {
+            assertThat(checkPackageHasPictureInPictureActivities(ignoredPackage, true))
+                            .isFalse();
+        }
+    }
+
+    @Test
+    public void testNonPippableApp() {
+        assertThat(checkPackageHasPictureInPictureActivities("com.android.dummypackage")).isFalse();
+        assertThat(checkPackageHasPictureInPictureActivities("com.android.dummypackage",
+                false, false, false)).isFalse();
+    }
+
+    @Test
+    public void testPippableApp() {
+        assertThat(checkPackageHasPictureInPictureActivities("com.android.dummypackage",
+                true)).isTrue();
+        assertThat(checkPackageHasPictureInPictureActivities("com.android.dummypackage",
+                false, true)).isTrue();
+        assertThat(checkPackageHasPictureInPictureActivities("com.android.dummypackage",
+                true, false)).isTrue();
+    }
+
+    @Test
+    public void logSpecialPermissionChange() {
+        mFragment.logSpecialPermissionChange(true, "app");
+        verify(mFeatureFactory.metricsFeatureProvider).action(any(Context.class),
+                eq(MetricsProto.MetricsEvent.APP_PICTURE_IN_PICTURE_ON_HIDE_ALLOW), eq("app"));
+
+        mFragment.logSpecialPermissionChange(false, "app");
+        verify(mFeatureFactory.metricsFeatureProvider).action(any(Context.class),
+                eq(MetricsProto.MetricsEvent.APP_PICTURE_IN_PICTURE_ON_HIDE_DENY), eq("app"));
+    }
+
+    private boolean checkPackageHasPictureInPictureActivities(String packageName,
+            boolean... resizeableActivityState) {
+        ActivityInfoWrapper[] activities = null;
+        if (resizeableActivityState.length > 0) {
+            activities = new ActivityInfoWrapper[resizeableActivityState.length];
+            for (int i = 0; i < activities.length; i++) {
+                activities[i] = new MockActivityInfo(resizeableActivityState[i]
+                        ? ActivityInfo.RESIZE_MODE_RESIZEABLE_AND_PIPABLE
+                        : ActivityInfo.RESIZE_MODE_UNRESIZEABLE);
+            }
+        }
+        return PictureInPictureSettings.checkPackageHasPictureInPictureActivities(packageName,
+                activities);
+    }
+
+    private class MockActivityInfo implements ActivityInfoWrapper {
+
+        private int mResizeMode;
+
+        public MockActivityInfo(int resizeMode) {
+            mResizeMode = resizeMode;
+        }
+
+        @Override
+        public int getResizeMode() {
+            return mResizeMode;
+        }
+    }
+}