1 /* 2 * Copyright (C) 2017 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 android.accessibilityservice.AccessibilityServiceInfo; 20 import android.app.Fragment; 21 import android.content.ComponentName; 22 import android.content.Context; 23 import android.content.pm.PackageManager; 24 import android.os.Bundle; 25 import android.provider.Settings; 26 import android.text.TextUtils; 27 import android.view.accessibility.AccessibilityManager; 28 29 import androidx.annotation.Keep; 30 import androidx.leanback.preference.LeanbackSettingsFragment; 31 import androidx.preference.Preference; 32 import androidx.preference.PreferenceScreen; 33 34 import com.android.internal.logging.nano.MetricsProto; 35 import com.android.tv.settings.R; 36 import com.android.tv.settings.RadioPreference; 37 import com.android.tv.settings.SettingsPreferenceFragment; 38 39 import java.util.List; 40 41 /** 42 * Fragment imitating a single-selection list for picking the accessibility shortcut service 43 */ 44 @Keep 45 public class AccessibilityShortcutServiceFragment extends SettingsPreferenceFragment implements 46 AccessibilityServiceConfirmationFragment.OnAccessibilityServiceConfirmedListener { 47 private static final String SERVICE_RADIO_GROUP = "service_group"; 48 49 private final Preference.OnPreferenceChangeListener mPreferenceChangeListener = 50 (preference, newValue) -> { 51 final String newCompString = preference.getKey(); 52 final String currentService = 53 AccessibilityShortcutFragment.getCurrentService(getContext()); 54 if ((Boolean) newValue && !TextUtils.equals(newCompString, currentService)) { 55 final ComponentName cn = ComponentName.unflattenFromString(newCompString); 56 final CharSequence label = preference.getTitle(); 57 final Fragment confirmFragment = 58 AccessibilityServiceConfirmationFragment.newInstance(cn, label, true); 59 confirmFragment.setTargetFragment(AccessibilityShortcutServiceFragment.this, 0); 60 61 final Fragment settingsFragment = getCallbackFragment(); 62 if (settingsFragment instanceof LeanbackSettingsFragment) { 63 ((LeanbackSettingsFragment) settingsFragment) 64 .startImmersiveFragment(confirmFragment); 65 } else { 66 throw new IllegalStateException("Not attached to settings fragment??"); 67 } 68 } 69 return false; 70 }; 71 72 @Override onCreatePreferences(Bundle savedInstanceState, String rootKey)73 public void onCreatePreferences(Bundle savedInstanceState, String rootKey) { 74 setPreferencesFromResource(R.xml.accessibility_shortcut_service, null); 75 76 final PreferenceScreen screen = getPreferenceScreen(); 77 final Context themedContext = getPreferenceManager().getContext(); 78 79 final List<AccessibilityServiceInfo> installedServices = getContext() 80 .getSystemService(AccessibilityManager.class) 81 .getInstalledAccessibilityServiceList(); 82 final PackageManager packageManager = getContext().getPackageManager(); 83 final String currentService = AccessibilityShortcutFragment.getCurrentService(getContext()); 84 for (AccessibilityServiceInfo service : installedServices) { 85 final RadioPreference preference = new RadioPreference(themedContext); 86 preference.setPersistent(false); 87 preference.setRadioGroup(SERVICE_RADIO_GROUP); 88 preference.setOnPreferenceChangeListener(mPreferenceChangeListener); 89 90 final String serviceString = service.getComponentName().flattenToString(); 91 if (TextUtils.equals(currentService, serviceString)) { 92 preference.setChecked(true); 93 } 94 preference.setKey(serviceString); 95 preference.setTitle(service.getResolveInfo().loadLabel(packageManager)); 96 97 screen.addPreference(preference); 98 } 99 } 100 101 @Override onAccessibilityServiceConfirmed(ComponentName componentName, boolean enabling)102 public void onAccessibilityServiceConfirmed(ComponentName componentName, boolean enabling) { 103 final String componentString = componentName.flattenToString(); 104 Settings.Secure.putString(getContext().getContentResolver(), 105 Settings.Secure.ACCESSIBILITY_SHORTCUT_TARGET_SERVICE, 106 componentString); 107 getFragmentManager().popBackStack(); 108 } 109 110 @Override getMetricsCategory()111 public int getMetricsCategory() { 112 return MetricsProto.MetricsEvent.ACCESSIBILITY_SERVICE; 113 } 114 } 115