2 * Copyright © 2019,2021-2022 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
6 * Privacy Browser Android is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser Android is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser Android. If not, see <http://www.gnu.org/licenses/>.
21 * This file is a modified version of <https://android.googlesource.com/platform/packages/apps/Camera/+/master/src/com/android/camera/ui/CheckedLinearLayout.java>.
23 * The original licensing information is below.
25 * Copyright (C) 2012 The Android Open Source Project
27 * Licensed under the Apache License, Version 2.0 (the "License");
28 * you may not use this file except in compliance with the License.
29 * You may obtain a copy of the License at
31 * http://www.apache.org/licenses/LICENSE-2.0
33 * Unless required by applicable law or agreed to in writing, software
34 * distributed under the License is distributed on an "AS IS" BASIS,
35 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
36 * See the License for the specific language governing permissions and
37 * limitations under the License.
40 package com.stoutner.privacybrowser.views
42 import android.content.Context
43 import android.util.AttributeSet
44 import android.widget.Checkable
45 import android.widget.LinearLayout
47 // Define the class constants.
49 class CheckedLinearLayout : LinearLayout, Checkable {
50 // Define the class variables.
51 private var isCurrentlyChecked = false
52 private val checkedStateSet = intArrayOf(android.R.attr.state_checked)
55 constructor(context: Context) : super(context)
57 constructor(context: Context, attributeSet: AttributeSet?) : super(context, attributeSet)
59 constructor(context: Context, attributeSet: AttributeSet?, defaultStyleAttribute: Int) : super(context, attributeSet, defaultStyleAttribute)
61 // This constructor can only be added once the minimum API >= 21.
62 // constructor(context: Context, attributeSet: AttributeSet?, defaultStyleAttribute: Int, defaultStyleResource: Int) : super(context, attributeSet, defaultStyleAttribute, defaultStyleResource)
64 override fun isChecked(): Boolean {
65 // Return the checked status.
66 return isCurrentlyChecked
69 override fun setChecked(checked: Boolean) {
70 // Only process the command if a change is requested.
71 if (isCurrentlyChecked != checked) {
72 // Update the status tracker.
73 isCurrentlyChecked = checked
75 // Refresh the drawable state.
76 refreshDrawableState()
78 // Propagate the checked status to the child views.
79 for (i in 0 until childCount) {
80 // Get a handle for the child view.
81 val childView = getChildAt(i)
83 // Propagate the checked status if the child view is checkable.
84 if (childView is Checkable) {
85 // Cast the child view to `Checkable`.
86 val checkableChildView = childView as Checkable
88 // Set the checked status.
89 checkableChildView.isChecked = checked
95 override fun toggle() {
97 isChecked = !isCurrentlyChecked
100 public override fun onCreateDrawableState(extraSpace: Int): IntArray {
101 // Run the default commands.
102 val drawableState = super.onCreateDrawableState(extraSpace + 1)
104 if (isCurrentlyChecked) {
105 // Merge the drawable states.
106 mergeDrawableStates(drawableState, checkedStateSet)
109 // Return the drawable state.