/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.widget;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.TextView;
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import androidx.preference.CheckBoxPreference;
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import androidx.preference.PreferenceViewHolder;
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/**
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* A CheckboxPreference that can disable its checkbox separate from its text.
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* Differs from CheckboxPreference.setDisabled() in that the text is not dimmed.
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*/
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public class DisabledCheckBoxPreference extends CheckBoxPreference {
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private PreferenceViewHolder mViewHolder;
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private View mCheckBox;
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private boolean mEnabledCheckBox;
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public DisabledCheckBoxPreference(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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setupDisabledCheckBoxPreference(context, attrs, defStyleAttr, defStyleRes);
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}
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public DisabledCheckBoxPreference(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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setupDisabledCheckBoxPreference(context, attrs, defStyleAttr, 0);
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}
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public DisabledCheckBoxPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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setupDisabledCheckBoxPreference(context, attrs, 0, 0);
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}
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public DisabledCheckBoxPreference(Context context) {
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super(context);
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setupDisabledCheckBoxPreference(context, null, 0, 0);
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}
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private void setupDisabledCheckBoxPreference(Context context, AttributeSet attrs,
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int defStyleAttr, int defStyleRes) {
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final TypedArray a = context.obtainStyledAttributes(
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attrs, com.android.internal.R.styleable.Preference, defStyleAttr, defStyleRes);
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for (int i = a.getIndexCount() - 1; i >= 0; i--) {
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int attr = a.getIndex(i);
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switch (attr) {
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case com.android.internal.R.styleable.Preference_enabled:
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mEnabledCheckBox = a.getBoolean(attr, true);
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break;
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}
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}
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a.recycle();
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// Always tell super class this preference is enabled.
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// We manually enable/disable checkbox using enableCheckBox.
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super.setEnabled(true);
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enableCheckbox(mEnabledCheckBox);
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}
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public void enableCheckbox(boolean enabled) {
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mEnabledCheckBox = enabled;
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if (mViewHolder != null && mCheckBox != null) {
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mCheckBox.setEnabled(mEnabledCheckBox);
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mViewHolder.itemView.setEnabled(mEnabledCheckBox);
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}
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}
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@Override
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public void onBindViewHolder(PreferenceViewHolder holder) {
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super.onBindViewHolder(holder);
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mViewHolder = holder;
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mCheckBox = holder.findViewById(android.R.id.checkbox);
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enableCheckbox(mEnabledCheckBox);
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TextView title = (TextView) holder.findViewById(android.R.id.title);
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if (title != null) {
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title.setSingleLine(false);
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title.setMaxLines(2);
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}
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}
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@Override
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protected void performClick(View view) {
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// only perform clicks if the checkbox is enabled
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if (mEnabledCheckBox) {
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super.performClick(view);
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}
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}
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}
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