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.permissioncontroller.permission.ui.widget; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.MotionEvent; 22 import android.widget.Button; 23 24 import com.android.modules.utils.build.SdkLevel; 25 26 /** 27 * A button which doesn't allow clicking when any part of the window is obscured 28 */ 29 public class SecureButton extends Button { 30 31 private static final int FLAGS_WINDOW_IS_OBSCURED = 32 MotionEvent.FLAG_WINDOW_IS_OBSCURED | MotionEvent.FLAG_WINDOW_IS_PARTIALLY_OBSCURED; 33 SecureButton(Context context)34 public SecureButton(Context context) { 35 super(context); 36 } 37 SecureButton(Context context, AttributeSet attrs)38 public SecureButton(Context context, AttributeSet attrs) { 39 super(context, attrs); 40 } 41 SecureButton(Context context, AttributeSet attrs, int defStyleAttr)42 public SecureButton(Context context, AttributeSet attrs, int defStyleAttr) { 43 super(context, attrs, defStyleAttr); 44 } 45 SecureButton(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)46 public SecureButton(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 47 super(context, attrs, defStyleAttr, defStyleRes); 48 } 49 50 @Override onFilterTouchEventForSecurity(MotionEvent event)51 public boolean onFilterTouchEventForSecurity(MotionEvent event) { 52 if (SdkLevel.isAtLeastS()) { 53 return (event.getFlags() & FLAGS_WINDOW_IS_OBSCURED) == 0 54 && super.onFilterTouchEventForSecurity(event); 55 } 56 57 return super.onFilterTouchEventForSecurity(event); 58 } 59 } 60