Home | History | Annotate | Download | only in accessibility 
      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.content.ComponentName;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.os.Bundle;
     23 import android.support.annotation.NonNull;
     24 import android.support.v14.preference.SwitchPreference;
     25 import android.support.v17.preference.LeanbackPreferenceFragment;
     26 import android.support.v7.preference.Preference;
     27 import android.support.v7.preference.PreferenceScreen;
     28 import android.support.v7.preference.TwoStatePreference;
     29 import android.text.TextUtils;
     30 
     31 import com.android.settingslib.accessibility.AccessibilityUtils;
     32 import com.android.tv.settings.R;
     33 
     34 import java.util.Set;
     35 
     36 /**
     37  * Fragment for controlling accessibility service
     38  */
     39 public class AccessibilityServiceFragment extends LeanbackPreferenceFragment implements
     40         AccessibilityServiceConfirmationFragment.OnAccessibilityServiceConfirmedListener {
     41     private static final String ARG_PACKAGE_NAME = "packageName";
     42     private static final String ARG_SERVICE_NAME = "serviceName";
     43     private static final String ARG_SETTINGS_ACTIVITY_NAME = "settingsActivityName";
     44     private static final String ARG_LABEL = "label";
     45 
     46     private TwoStatePreference mEnablePref;
     47 
     48     /**
     49      * Put args in bundle
     50      * @param args Bundle to prepare
     51      * @param packageName Package of accessibility service
     52      * @param serviceName Class of accessibility service
     53      * @param activityName Class of accessibility service settings activity
     54      * @param label Screen title
     55      */
     56     public static void prepareArgs(@NonNull Bundle args, String packageName, String serviceName,
     57             String activityName, String label) {
     58         args.putString(ARG_PACKAGE_NAME, packageName);
     59         args.putString(ARG_SERVICE_NAME, serviceName);
     60         args.putString(ARG_SETTINGS_ACTIVITY_NAME, activityName);
     61         args.putString(ARG_LABEL, label);
     62     }
     63 
     64     @Override
     65     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
     66         final Context themedContext = getPreferenceManager().getContext();
     67         final PreferenceScreen screen =
     68                 getPreferenceManager().createPreferenceScreen(themedContext);
     69         screen.setTitle(getArguments().getString(ARG_LABEL));
     70 
     71         mEnablePref = new SwitchPreference(themedContext);
     72         mEnablePref.setTitle(R.string.system_accessibility_status);
     73         mEnablePref.setFragment(AccessibilityServiceConfirmationFragment.class.getName());
     74         screen.addPreference(mEnablePref);
     75 
     76         final Preference settingsPref = new Preference(themedContext);
     77         settingsPref.setTitle(R.string.system_accessibility_config);
     78         final String activityName = getArguments().getString(ARG_SETTINGS_ACTIVITY_NAME);
     79         if (!TextUtils.isEmpty(activityName)) {
     80             final String packageName = getArguments().getString(ARG_PACKAGE_NAME);
     81             settingsPref.setIntent(new Intent(Intent.ACTION_MAIN)
     82                     .setComponent(new ComponentName(packageName, activityName)));
     83         } else {
     84             settingsPref.setEnabled(false);
     85         }
     86         screen.addPreference(settingsPref);
     87 
     88         setPreferenceScreen(screen);
     89     }
     90 
     91     @Override
     92     public void onResume() {
     93         super.onResume();
     94 
     95         final String packageName = getArguments().getString(ARG_PACKAGE_NAME);
     96         final String serviceName = getArguments().getString(ARG_SERVICE_NAME);
     97 
     98         final ComponentName serviceComponent = new ComponentName(packageName, serviceName);
     99         final Set<ComponentName> enabledServices =
    100                 AccessibilityUtils.getEnabledServicesFromSettings(getActivity());
    101         final boolean enabled = enabledServices.contains(serviceComponent);
    102 
    103         mEnablePref.setChecked(enabled);
    104         AccessibilityServiceConfirmationFragment.prepareArgs(mEnablePref.getExtras(),
    105                 new ComponentName(packageName, serviceName),
    106                 getArguments().getString(ARG_LABEL), !enabled);
    107     }
    108 
    109     @Override
    110     public void onAccessibilityServiceConfirmed(ComponentName componentName, boolean enabling) {
    111         AccessibilityUtils.setAccessibilityServiceState(getActivity(),
    112                 componentName, enabling);
    113     }
    114 }
    115