1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.car.settings.accessibility; 18 19 import android.car.drivingstate.CarUxRestrictions; 20 import android.content.Context; 21 22 import androidx.preference.PreferenceGroup; 23 24 import com.android.car.settings.common.FragmentController; 25 import com.android.car.settings.common.PreferenceController; 26 27 /** 28 * Controller that ensures screen reader category is only shown when there are actionable items. 29 */ 30 public class ScreenReaderCategoryPreferenceController extends 31 PreferenceController<PreferenceGroup> { 32 ScreenReaderCategoryPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)33 public ScreenReaderCategoryPreferenceController(Context context, String preferenceKey, 34 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 35 super(context, preferenceKey, fragmentController, uxRestrictions); 36 } 37 38 @Override getPreferenceType()39 protected Class<PreferenceGroup> getPreferenceType() { 40 return PreferenceGroup.class; 41 } 42 43 @Override getDefaultAvailabilityStatus()44 protected int getDefaultAvailabilityStatus() { 45 boolean screenReaderInstalled = ScreenReaderUtils.isScreenReaderInstalled(getContext()); 46 return screenReaderInstalled ? AVAILABLE : CONDITIONALLY_UNAVAILABLE; 47 } 48 } 49