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/*
* Copyright (C) 2018 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.settings.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
import android.widget.TextView;
import androidx.preference.CheckBoxPreference;
import androidx.preference.PreferenceViewHolder;
/**
* A CheckboxPreference that can disable its checkbox separate from its text.
* Differs from CheckboxPreference.setDisabled() in that the text is not dimmed.
*/
public class DisabledCheckBoxPreference extends CheckBoxPreference {
private PreferenceViewHolder mViewHolder;
private View mCheckBox;
private boolean mEnabledCheckBox;
public DisabledCheckBoxPreference(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
setupDisabledCheckBoxPreference(context, attrs, defStyleAttr, defStyleRes);
}
public DisabledCheckBoxPreference(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
setupDisabledCheckBoxPreference(context, attrs, defStyleAttr, 0);
}
public DisabledCheckBoxPreference(Context context, AttributeSet attrs) {
super(context, attrs);
setupDisabledCheckBoxPreference(context, attrs, 0, 0);
}
public DisabledCheckBoxPreference(Context context) {
super(context);
setupDisabledCheckBoxPreference(context, null, 0, 0);
}
private void setupDisabledCheckBoxPreference(Context context, AttributeSet attrs,
int defStyleAttr, int defStyleRes) {
final TypedArray a = context.obtainStyledAttributes(
attrs, com.android.internal.R.styleable.Preference, defStyleAttr, defStyleRes);
for (int i = a.getIndexCount() - 1; i >= 0; i--) {
int attr = a.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.Preference_enabled:
mEnabledCheckBox = a.getBoolean(attr, true);
break;
}
}
a.recycle();
// Always tell super class this preference is enabled.
// We manually enable/disable checkbox using enableCheckBox.
super.setEnabled(true);
enableCheckbox(mEnabledCheckBox);
}
public void enableCheckbox(boolean enabled) {
mEnabledCheckBox = enabled;
if (mViewHolder != null && mCheckBox != null) {
mCheckBox.setEnabled(mEnabledCheckBox);
mViewHolder.itemView.setEnabled(mEnabledCheckBox);
}
}
@Override
public void onBindViewHolder(PreferenceViewHolder holder) {
super.onBindViewHolder(holder);
mViewHolder = holder;
mCheckBox = holder.findViewById(android.R.id.checkbox);
enableCheckbox(mEnabledCheckBox);
TextView title = (TextView) holder.findViewById(android.R.id.title);
if (title != null) {
title.setSingleLine(false);
title.setMaxLines(2);
title.setEllipsize(TextUtils.TruncateAt.END);
}
}
@Override
protected void performClick(View view) {
// only perform clicks if the checkbox is enabled
if (mEnabledCheckBox) {
super.performClick(view);
}
}
}