Provide a way to ToggleA11yServicePreferenceFragment via Intent

Intent can only open the list of a11y services in Settings currently.
PermissionController needs a way to open the screen with the a11y
service toggle.

Bug: 123693167
Test: manual
Test: atest AccessibilityDetailsSettingsFragmentTest
Change-Id: I32ed39330cf9e4c18a1747521fb65eb911d1c6e4

AndroidManifest.xml

@@ -1362,6 +1362,20 @@
                 android:value="true" />
         </activity>
 
+        <activity
+            android:name="Settings$AccessibilityDetailsSettingsActivity"
+            android:label="@string/accessibility_settings"
+            android:permission="android.permission.OPEN_ACCESSIBILITY_DETAILS_SETTINGS">
+            <intent-filter android:priority="1">
+                <action android:name="android.settings.ACCESSIBILITY_DETAILS_SETTINGS" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.accessibility.AccessibilityDetailsSettingsFragment" />
+            <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
+                android:value="true" />
+        </activity>
+
         <activity android:name=".accessibility.AccessibilitySettingsForSetupWizardActivity"
                 android:icon="@drawable/ic_accessibility_suggestion"
                 android:label="@string/vision_settings_title"

src/com/android/settings/Settings.java

@@ -62,6 +62,7 @@ public class Settings extends SettingsActivity {
     public static class StorageUseActivity extends SettingsActivity { /* empty */ }
     public static class DevelopmentSettingsDashboardActivity extends SettingsActivity { /* empty */ }
     public static class AccessibilitySettingsActivity extends SettingsActivity { /* empty */ }
+    public static class AccessibilityDetailsSettingsActivity extends SettingsActivity { /* empty */ }
     public static class CaptioningSettingsActivity extends SettingsActivity { /* empty */ }
     public static class AccessibilityInversionSettingsActivity extends SettingsActivity { /* empty */ }
     public static class AccessibilityContrastSettingsActivity extends SettingsActivity { /* empty */ }

src/com/android/settings/accessibility/AccessibilityDetailsSettingsFragment.java

@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import android.accessibilityservice.AccessibilityServiceInfo;
+import android.app.Activity;
+import android.app.admin.DevicePolicyManager;
+import android.app.settings.SettingsEnums;
+import android.content.ComponentName;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.content.pm.ServiceInfo;
+import android.os.Bundle;
+import android.os.UserHandle;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.accessibility.AccessibilityManager;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.settings.R;
+import com.android.settings.core.InstrumentedFragment;
+import com.android.settings.core.SubSettingLauncher;
+import com.android.settingslib.accessibility.AccessibilityUtils;
+
+import java.util.List;
+import java.util.Set;
+
+public class AccessibilityDetailsSettingsFragment extends InstrumentedFragment {
+
+    private final static String TAG = "A11yDetailsSettings";
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.ACCESSIBILITY_DETAILS_SETTINGS;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // In case the Intent doesn't have component name, go to a11y services list.
+        final String extraComponentName = getActivity().getIntent().getStringExtra(
+                Intent.EXTRA_COMPONENT_NAME);
+        if (extraComponentName == null) {
+            Log.w(TAG, "Open accessibility services list due to no component name.");
+            openAccessibilitySettingsAndFinish();
+            return;
+        }
+
+        // In case the A11yServiceInfo doesn't exist, go to ally services list.
+        final ComponentName componentName = ComponentName.unflattenFromString(extraComponentName);
+        final AccessibilityServiceInfo info = getAccessibilityServiceInfo(componentName);
+        if (info == null) {
+            Log.w(TAG, "Open accessibility services list due to invalid component name.");
+            openAccessibilitySettingsAndFinish();
+            return;
+        }
+
+        // In case this accessibility service isn't permitted, go to a11y services list.
+        if (!isServiceAllowed(componentName.getPackageName())) {
+            Log.w(TAG,
+                    "Open accessibility services list due to target accessibility service is "
+                            + "prohibited by Device Admin.");
+            openAccessibilitySettingsAndFinish();
+            return;
+        }
+
+        openAccessibilityDetailsSettingsAndFinish(buildArguments(info));
+    }
+
+    @VisibleForTesting
+    void openAccessibilitySettingsAndFinish() {
+        new SubSettingLauncher(getActivity())
+                .setDestination(AccessibilitySettings.class.getName())
+                .setSourceMetricsCategory(getMetricsCategory())
+                .launch();
+        finish();
+    }
+
+    @VisibleForTesting
+    void openAccessibilityDetailsSettingsAndFinish(Bundle arguments) {
+        new SubSettingLauncher(getActivity())
+                .setDestination(ToggleAccessibilityServicePreferenceFragment.class.getName())
+                .setSourceMetricsCategory(getMetricsCategory())
+                .setArguments(arguments)
+                .launch();
+        finish();
+    }
+
+    @VisibleForTesting
+    boolean isServiceAllowed(String packageName) {
+        final DevicePolicyManager dpm = getContext().getSystemService(DevicePolicyManager.class);
+        final List<String> permittedServices = dpm.getPermittedAccessibilityServices(
+                UserHandle.myUserId());
+        return (permittedServices == null || permittedServices.contains(packageName));
+    }
+
+    private AccessibilityServiceInfo getAccessibilityServiceInfo(ComponentName componentName) {
+        if (componentName == null) {
+            return null;
+        }
+
+        final List<AccessibilityServiceInfo> serviceInfos = AccessibilityManager.getInstance(
+                getActivity()).getInstalledAccessibilityServiceList();
+        final int serviceInfoCount = serviceInfos.size();
+        for (int i = 0; i < serviceInfoCount; i++) {
+            AccessibilityServiceInfo serviceInfo = serviceInfos.get(i);
+            ResolveInfo resolveInfo = serviceInfo.getResolveInfo();
+            if (componentName.getPackageName().equals(resolveInfo.serviceInfo.packageName)
+                    && componentName.getClassName().equals(resolveInfo.serviceInfo.name)) {
+                return serviceInfo;
+            }
+        }
+        return null;
+    }
+
+    private Bundle buildArguments(AccessibilityServiceInfo info) {
+        final ResolveInfo resolveInfo = info.getResolveInfo();
+        final String title = resolveInfo.loadLabel(getActivity().getPackageManager()).toString();
+        final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
+        final String packageName = serviceInfo.packageName;
+        final ComponentName componentName = new ComponentName(packageName, serviceInfo.name);
+
+        final List<AccessibilityServiceInfo> enabledServiceInfos = AccessibilityManager.getInstance(
+                getActivity()).getEnabledAccessibilityServiceList(
+                AccessibilityServiceInfo.FEEDBACK_ALL_MASK);
+        final Set<ComponentName> enabledServices =
+                AccessibilityUtils.getEnabledServicesFromSettings(getActivity());
+        final boolean serviceEnabled = enabledServices.contains(componentName);
+        String description = info.loadDescription(getActivity().getPackageManager());
+        if (TextUtils.isEmpty(description)) {
+            description = getString(R.string.accessibility_service_default_description);
+        }
+
+        if (serviceEnabled && AccessibilityUtils.hasServiceCrashed(
+                packageName, serviceInfo.name, enabledServiceInfos)) {
+            // Update the summaries for services that have crashed.
+            description = getString(R.string.accessibility_description_state_stopped);
+        }
+
+        final Bundle extras = new Bundle();
+        extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
+                componentName.flattenToString());
+        extras.putBoolean(AccessibilitySettings.EXTRA_CHECKED, serviceEnabled);
+        extras.putString(AccessibilitySettings.EXTRA_TITLE, title);
+        extras.putParcelable(AccessibilitySettings.EXTRA_RESOLVE_INFO, resolveInfo);
+        extras.putString(AccessibilitySettings.EXTRA_SUMMARY, description);
+
+        final String settingsClassName = info.getSettingsActivityName();
+        if (!TextUtils.isEmpty(settingsClassName)) {
+            extras.putString(AccessibilitySettings.EXTRA_SETTINGS_TITLE,
+                    getString(R.string.accessibility_menu_item_settings));
+            extras.putString(AccessibilitySettings.EXTRA_SETTINGS_COMPONENT_NAME,
+                    new ComponentName(packageName, settingsClassName).flattenToString());
+        }
+        extras.putParcelable(AccessibilitySettings.EXTRA_COMPONENT_NAME, componentName);
+
+        return extras;
+    }
+
+    private void finish() {
+        Activity activity = getActivity();
+        if (activity == null) {
+            return;
+        }
+        activity.finish();
+    }
+}

src/com/android/settings/core/gateway/SettingsGateway.java

@@ -24,6 +24,7 @@ import com.android.settings.Settings;
 import com.android.settings.TestingSettings;
 import com.android.settings.TetherSettings;
 import com.android.settings.TrustedCredentialsSettings;
+import com.android.settings.accessibility.AccessibilityDetailsSettingsFragment;
 import com.android.settings.accessibility.AccessibilitySettings;
 import com.android.settings.accessibility.AccessibilitySettingsForSetupWizard;
 import com.android.settings.accessibility.CaptionPropertiesFragment;
@@ -178,6 +179,7 @@ public class SettingsGateway {
             UsageAccessDetails.class.getName(),
             PrivacySettings.class.getName(),
             DeviceAdminSettings.class.getName(),
+            AccessibilityDetailsSettingsFragment.class.getName(),
             AccessibilitySettings.class.getName(),
             AccessibilitySettingsForSetupWizard.class.getName(),
             CaptionPropertiesFragment.class.getName(),

tests/robotests/src/com/android/settings/accessibility/AccessibilityDetailsSettingsFragmentTest.java

@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.accessibilityservice.AccessibilityServiceInfo;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.ResolveInfo;
+import android.content.pm.ServiceInfo;
+import android.os.Bundle;
+import android.view.accessibility.AccessibilityManager;
+
+import androidx.fragment.app.FragmentActivity;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowAccessibilityManager;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+@RunWith(RobolectricTestRunner.class)
+public class AccessibilityDetailsSettingsFragmentTest {
+    private final static String PACKAGE_NAME = "com.foo.bar";
+    private final static String CLASS_NAME = PACKAGE_NAME + ".fake_a11y_service";
+    private final static String COMPONENT_NAME = PACKAGE_NAME + "/" + CLASS_NAME;
+
+    private Context mContext;
+    private AccessibilityDetailsSettingsFragment mFragment;
+    private ShadowAccessibilityManager mShadowAccessibilityManager;
+    @Mock private FragmentActivity mActivity;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = spy(RuntimeEnvironment.application);
+        mFragment = spy(new AccessibilityDetailsSettingsFragment());
+        mShadowAccessibilityManager = Shadow.extract(AccessibilityManager.getInstance(mContext));
+        mShadowAccessibilityManager.setInstalledAccessibilityServiceList(getMockServiceList());
+
+        doReturn(mActivity).when(mFragment).getActivity();
+        doReturn(mContext).when(mFragment).getContext();
+    }
+
+    @Test
+    public void onCreate_hasValidExtraComponentName_shouldOpenAccessibilityDetailsSettings() {
+        final Intent intent = new Intent();
+        intent.putExtra(Intent.EXTRA_COMPONENT_NAME, COMPONENT_NAME);
+        doReturn(intent).when(mActivity).getIntent();
+
+        mFragment.onCreate(Bundle.EMPTY);
+
+        verify(mFragment).openAccessibilityDetailsSettingsAndFinish(any());
+    }
+
+    @Test
+    public void onCreate_hasInvalidExtraComponentName_shouldOpenAccessibilityServicesList() {
+        final Intent intent = new Intent();
+        intent.putExtra(Intent.EXTRA_COMPONENT_NAME, PACKAGE_NAME + "/.service");
+        doReturn(intent).when(mActivity).getIntent();
+
+        mFragment.onCreate(Bundle.EMPTY);
+
+        verify(mFragment).openAccessibilitySettingsAndFinish();
+    }
+
+    @Test
+    public void onCreate_hasNoExtraComponentName_shouldOpenAccessibilityServicesList() {
+        final Intent intent = new Intent();
+        doReturn(intent).when(mActivity).getIntent();
+
+        mFragment.onCreate(Bundle.EMPTY);
+
+        verify(mFragment).openAccessibilitySettingsAndFinish();
+    }
+
+    @Test
+    public void onCreate_extraComponentNameIsDisallowed_shouldOpenAccessibilityServicesList() {
+        final Intent intent = new Intent();
+        intent.putExtra(Intent.EXTRA_COMPONENT_NAME, COMPONENT_NAME);
+        doReturn(intent).when(mActivity).getIntent();
+        doReturn(false).when(mFragment).isServiceAllowed(any());
+
+        mFragment.onCreate(Bundle.EMPTY);
+
+        verify(mFragment).openAccessibilitySettingsAndFinish();
+    }
+
+    private AccessibilityServiceInfo getMockAccessibilityServiceInfo() {
+        final ApplicationInfo applicationInfo = new ApplicationInfo();
+        final ServiceInfo serviceInfo = new ServiceInfo();
+        applicationInfo.packageName = PACKAGE_NAME;
+        serviceInfo.packageName = PACKAGE_NAME;
+        serviceInfo.name = CLASS_NAME;
+        serviceInfo.applicationInfo = applicationInfo;
+
+        final ResolveInfo resolveInfo = new ResolveInfo();
+        resolveInfo.serviceInfo = serviceInfo;
+
+        try {
+            final AccessibilityServiceInfo info = new AccessibilityServiceInfo(resolveInfo,
+                    mContext);
+            ComponentName componentName = ComponentName.unflattenFromString(COMPONENT_NAME);
+            info.setComponentName(componentName);
+            return info;
+        } catch (XmlPullParserException | IOException e) {
+            // Do nothing
+        }
+
+        return null;
+    }
+
+    private List<AccessibilityServiceInfo> getMockServiceList() {
+        final List<AccessibilityServiceInfo> infoList = new ArrayList<>();
+        infoList.add(getMockAccessibilityServiceInfo());
+        return infoList;
+    }
+}