| /* |
| * Copyright (C) 2017 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.settingslib.accessibility; |
| |
| import android.accessibilityservice.AccessibilityServiceInfo; |
| import android.content.Context; |
| import android.provider.Settings; |
| import android.view.accessibility.AccessibilityManager; |
| |
| import java.util.List; |
| |
| /** |
| * A helper class to assist determining the state of the accessibility button that can appear |
| * within the software-rendered navigation area. |
| */ |
| public class AccessibilityButtonHelper { |
| public static boolean isRequestedByMagnification(Context ctx) { |
| return Settings.Secure.getInt(ctx.getContentResolver(), |
| Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED, 0) == 1; |
| } |
| |
| public static boolean isRequestedByAccessibilityService(Context ctx) { |
| final AccessibilityManager accessibilityManager = ctx.getSystemService( |
| AccessibilityManager.class); |
| List<AccessibilityServiceInfo> services = |
| accessibilityManager.getEnabledAccessibilityServiceList( |
| AccessibilityServiceInfo.FEEDBACK_ALL_MASK); |
| if (services != null) { |
| for (int i = 0, size = services.size(); i < size; i++) { |
| if ((services.get(i).flags |
| & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) |
| != 0) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| public static boolean isRequested(Context ctx) { |
| return isRequestedByMagnification(ctx) || isRequestedByAccessibilityService(ctx); |
| } |
| } |