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.tv.settings.accessibility; 18 19 import static com.android.tv.settings.library.ManagerUtil.STATE_ACCESSIBILITY; 20 21 import android.os.Bundle; 22 23 import androidx.annotation.Keep; 24 import androidx.preference.PreferenceGroup; 25 import androidx.preference.PreferenceManager; 26 27 import com.android.tv.settings.R; 28 import com.android.tv.settings.compat.HasKeys; 29 import com.android.tv.settings.compat.PreferenceControllerFragmentCompat; 30 import com.android.tv.settings.compat.RenderUtil; 31 import com.android.tv.settings.library.PreferenceCompat; 32 33 /** 34 * Fragment for Accessibility settings 35 */ 36 @Keep 37 public class AccessibilityFragmentCompat extends PreferenceControllerFragmentCompat { 38 private static final String ACCESSIBILITY_SERVICES_KEY = "system_accessibility_services"; 39 private static final String TOGGLE_HIGH_TEXT_CONTRAST_KEY = "toggle_high_text_contrast"; 40 private static final String TOGGLE_AUDIO_DESCRIPTION_KEY = "toggle_audio_description"; 41 42 private PreferenceGroup mServicesPref; 43 44 @Override getStateIdentifier()45 public int getStateIdentifier() { 46 return STATE_ACCESSIBILITY; 47 } 48 49 @Override onCreatePreferences(Bundle savedInstanceState, String rootKey)50 public void onCreatePreferences(Bundle savedInstanceState, String rootKey) { 51 getPreferenceManager() 52 .setPreferenceComparisonCallback( 53 new PreferenceManager.SimplePreferenceComparisonCallback()); 54 setPreferencesFromResource(R.xml.accessibility_compat, null); 55 56 mServicesPref = (PreferenceGroup) findPreference(ACCESSIBILITY_SERVICES_KEY); 57 findPreference(TOGGLE_HIGH_TEXT_CONTRAST_KEY).setOnPreferenceChangeListener(this); 58 findPreference(TOGGLE_AUDIO_DESCRIPTION_KEY).setOnPreferenceChangeListener(this); 59 } 60 61 @Override updatePref(PreferenceCompat prefCompat)62 public HasKeys updatePref(PreferenceCompat prefCompat) { 63 HasKeys preference = super.updatePref(prefCompat); 64 if (preference == null) { 65 return null; 66 } 67 switch (prefCompat.getKey()[0]) { 68 case ACCESSIBILITY_SERVICES_KEY: 69 RenderUtil.updatePreferenceGroup( 70 mServicesPref, prefCompat.getChildPrefCompats()); 71 break; 72 default: 73 // no-op 74 } 75 return preference; 76 } 77 } 78