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/*
* 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.settings.wifi;
import android.content.Context;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.style.TextAppearanceSpan;
import android.util.AttributeSet;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.core.content.res.TypedArrayUtils;
import androidx.preference.Preference;
import androidx.preference.PreferenceViewHolder;
import com.android.settings.LinkifyUtils;
import com.android.settingslib.R;
/**
* A preference with a title that can have linkable content on click.
*/
public class LinkablePreference extends Preference {
private LinkifyUtils.OnClickListener mClickListener;
private CharSequence mContentTitle;
private CharSequence mContentDescription;
public LinkablePreference(Context ctx, AttributeSet attrs, int defStyle) {
super(ctx, attrs, defStyle);
setIcon(R.drawable.ic_info_outline_24dp);
setSelectable(false);
}
public LinkablePreference(Context ctx, AttributeSet attrs) {
this(ctx, attrs, TypedArrayUtils.getAttr(
ctx, R.attr.footerPreferenceStyle, android.R.attr.preferenceStyle));
}
public LinkablePreference(Context ctx) {
this(ctx, null);
}
@Override
public void onBindViewHolder(PreferenceViewHolder view) {
super.onBindViewHolder(view);
TextView textView = (TextView) view.findViewById(android.R.id.title);
if (textView == null) {
return;
}
textView.setSingleLine(false);
if (mContentTitle == null || mClickListener == null) {
return;
}
StringBuilder contentBuilder = new StringBuilder().append(mContentTitle);
if (mContentDescription != null) {
contentBuilder.append("\n\n");
contentBuilder.append(mContentDescription);
}
boolean linked = LinkifyUtils.linkify(textView, contentBuilder, mClickListener);
if (linked && mContentTitle != null) {
Spannable spannableContent = (Spannable) textView.getText();
spannableContent.setSpan(
new TextAppearanceSpan(getContext(), android.R.style.TextAppearance_Small),
0,
mContentTitle.length(),
Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
textView.setText(spannableContent);
textView.setMovementMethod(new LinkMovementMethod());
}
}
/**
* Sets the linkable text for the Preference title.
*
* @param contentTitle text to set the Preference title.
* @param contentDescription description text to append underneath title, can be null.
* @param clickListener OnClickListener for the link portion of the text.
*/
public void setText(
CharSequence contentTitle,
@Nullable CharSequence contentDescription,
LinkifyUtils.OnClickListener clickListener) {
mContentTitle = contentTitle;
mContentDescription = contentDescription;
mClickListener = clickListener;
// sets the title so that the title TextView is not hidden in super.onBindViewHolder()
super.setTitle(contentTitle);
}
/**
* Sets the title of the LinkablePreference. resets linkable text for reusability.
*/
@Override
public void setTitle(int titleResId) {
mContentTitle = null;
mContentDescription = null;
super.setTitle(titleResId);
}
/**
* Sets the title of the LinkablePreference. resets linkable text for reusability.
*/
@Override
public void setTitle(CharSequence title) {
mContentTitle = null;
mContentDescription = null;
super.setTitle(title);
}
}
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