<?php
class WP_Widget_Text extends WP_Widget
{
protected $registered = false;
public function __construct()
{
$widget_ops = array('classname' => 'widget_text', 'description' => __('Arbitrary text.'), 'customize_selective_refresh' => true);
$control_ops = array('width' => 400, 'height' => 350);
parent::__construct('text', __('Text'), $widget_ops, $control_ops);
}
public function _register_one($number = -1)
{
parent::_register_one($number);
if ($this->registered) {
return;
}
$this->registered = true;
wp_add_inline_script('text-widgets', sprintf('wp.textWidgets.idBases.push( %s );', wp_json_encode($this->id_base)));
if ($this->is_preview()) {
add_action('wp_enqueue_scripts', array($this, 'enqueue_preview_scripts'));
}
add_action('admin_print_scripts-widgets.php', array($this, 'enqueue_admin_scripts'));
add_action('admin_footer-widgets.php', array('WP_Widget_Text', 'render_control_template_scripts'));
}
public function is_legacy_instance($instance)
{
if (isset($instance['visual'])) {
return !$instance['visual'];
}
if (isset($instance['filter']) && 'content' === $instance['filter']) {
return false;
}
if (empty($instance['text'])) {
return false;
}
$wpautop = !empty($instance['filter']);
$has_line_breaks = false !== strpos(trim($instance['text']), "\n");
if (!$wpautop && $has_line_breaks) {
return true;
}
if (false !== strpos($instance['text'], '<!--')) {
return true;
}
if (!class_exists('DOMDocument')) {
return true;
}
$doc = new DOMDocument();
$errors = libxml_use_internal_errors(true);
@$doc->loadHTML(sprintf('<!DOCTYPE html><html><head><meta charset="%s"></head><body>%s</body></html>', esc_attr(get_bloginfo('charset')), $instance['text']));
libxml_use_internal_errors($errors);
$body = $doc->getElementsByTagName('body')->item(0);
$safe_elements_attributes = array('strong' => array(), 'em' => array(), 'b' => array(), 'i' => array(), 'u' => array(), 's' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(), 'hr' => array(), 'abbr' => array(), 'acronym' => array(), 'code' => array(), 'dfn' => array(), 'a' => array('href' => true), 'img' => array('src' => true, 'alt' => true));
$safe_empty_elements = array('img', 'hr', 'iframe');
foreach ($body->getElementsByTagName('*') as $element) {
$tag_name = strtolower($element->nodeName);
if (!isset($safe_elements_attributes[$tag_name])) {
return true;
}
if (!in_array($tag_name, $safe_empty_elements, true) && '' === trim($element->textContent)) {
return true;
}
foreach ($element->attributes as $attribute) {
$attribute_name = strtolower($attribute->nodeName);
if (!isset($safe_elements_attributes[$tag_name][$attribute_name])) {
return true;
}
}
}
return false;
}
public function _filter_gallery_shortcode_attrs($attrs)
{
if (!is_singular() && empty($attrs['id']) && empty($attrs['include'])) {
$attrs['id'] = -1;
}
return $attrs;
}
public function widget($args, $instance)
{
global $post;
$title = !empty($instance['title']) ? $instance['title'] : '';
$title = apply_filters('widget_title', $title, $instance, $this->id_base);
$text = !empty($instance['text']) ? $instance['text'] : '';
$is_visual_text_widget = !empty($instance['visual']) && !empty($instance['filter']);
if (!$is_visual_text_widget) {
$is_visual_text_widget = isset($instance['filter']) && 'content' === $instance['filter'];
}
if ($is_visual_text_widget) {
$instance['filter'] = true;
$instance['visual'] = true;
}
$widget_text_do_shortcode_priority = has_filter('widget_text', 'do_shortcode');
$should_suspend_legacy_shortcode_support = $is_visual_text_widget && false !== $widget_text_do_shortcode_priority;
if ($should_suspend_legacy_shortcode_support) {
remove_filter('widget_text', 'do_shortcode', $widget_text_do_shortcode_priority);
}
$original_post = $post;
if (is_singular()) {
$post = get_queried_object();
} else {
$post = null;
}
add_filter('shortcode_atts_gallery', array($this, '_filter_gallery_shortcode_attrs'));
$text = apply_filters('widget_text', $text, $instance, $this);
if ($is_visual_text_widget) {
$text = apply_filters('widget_text_content', $text, $instance, $this);
} else {
if (!empty($instance['filter'])) {
$text = wpautop($text);
}
if (has_filter('widget_text_content', 'do_shortcode') && !$widget_text_do_shortcode_priority) {
if (!empty($instance['filter'])) {
$text = shortcode_unautop($text);
}
$text = do_shortcode($text);
}
}
$post = $original_post;
remove_filter('shortcode_atts_gallery', array($this, '_filter_gallery_shortcode_attrs'));
if ($should_suspend_legacy_shortcode_support) {
add_filter('widget_text', 'do_shortcode', $widget_text_do_shortcode_priority);
}
echo $args['before_widget'];
if (!empty($title)) {
echo $args['before_title'] . $title . $args['after_title'];
}
$text = preg_replace_callback('#<(video|iframe|object|embed)\\s[^>]*>#i', array($this, 'inject_video_max_width_style'), $text);
$text = wp_targeted_link_rel($text);
?>
<div class="textwidget"><?php
echo $text;
?></div>
<?php
echo $args['after_widget'];
}
public function inject_video_max_width_style($matches)
{
$html = $matches[0];
$html = preg_replace('/\\sheight="\\d+"/', '', $html);
$html = preg_replace('/\\swidth="\\d+"/', '', $html);
$html = preg_replace('/(?<=width:)\\s*\\d+px(?=;?)/', '100%', $html);
return $html;
}
public function update($new_instance, $old_instance)
{
$new_instance = wp_parse_args($new_instance, array('title' => '', 'text' => '', 'filter' => false, 'visual' => null));
$instance = $old_instance;
$instance['title'] = sanitize_text_field($new_instance['title']);
if (current_user_can('unfiltered_html')) {
$instance['text'] = $new_instance['text'];
} else {
$instance['text'] = wp_kses_post($new_instance['text']);
}
$instance['filter'] = !empty($new_instance['filter']);
if (isset($old_instance['filter']) && 'content' === $old_instance['filter']) {
$instance['visual'] = true;
}
if ('content' === $new_instance['filter']) {
$instance['visual'] = true;
}
if (isset($new_instance['visual'])) {
$instance['visual'] = !empty($new_instance['visual']);
}
if (!empty($instance['visual'])) {
$instance['filter'] = true;
}
return $instance;
}
public function enqueue_preview_scripts()
{
require_once dirname(__DIR__) . '/media.php';
wp_playlist_scripts('audio');
wp_playlist_scripts('video');
}
public function enqueue_admin_scripts()
{
wp_enqueue_editor();
wp_enqueue_media();
wp_enqueue_script('text-widgets');
wp_add_inline_script('text-widgets', 'wp.textWidgets.init();', 'after');
}
public function form($instance)
{
$instance = wp_parse_args((array) $instance, array('title' => '', 'text' => ''));
?>
<?php
if (!$this->is_legacy_instance($instance)) {
?>
<?php
if (user_can_richedit()) {
add_filter('the_editor_content', 'format_for_editor', 10, 2);
$default_editor = 'tinymce';
} else {
$default_editor = 'html';
}
$text = apply_filters('the_editor_content', $instance['text'], $default_editor);
if (user_can_richedit()) {
remove_filter('the_editor_content', 'format_for_editor');
}
$escaped_text = preg_replace('#</textarea#i', '</textarea', $text);
?>
<input id="<?php
echo $this->get_field_id('title');
?>" name="<?php
echo $this->get_field_name('title');
?>" class="title sync-input" type="hidden" value="<?php
echo esc_attr($instance['title']);
?>">
<textarea id="<?php
echo $this->get_field_id('text');
?>" name="<?php
echo $this->get_field_name('text');
?>" class="text sync-input" hidden><?php
echo $escaped_text;
?></textarea>
<input id="<?php
echo $this->get_field_id('filter');
?>" name="<?php
echo $this->get_field_name('filter');
?>" class="filter sync-input" type="hidden" value="on">
<input id="<?php
echo $this->get_field_id('visual');
?>" name="<?php
echo $this->get_field_name('visual');
?>" class="visual sync-input" type="hidden" value="on">
<?php
} else {
?>
<input id="<?php
echo $this->get_field_id('visual');
?>" name="<?php
echo $this->get_field_name('visual');
?>" class="visual" type="hidden" value="">
<p>
<label for="<?php
echo $this->get_field_id('title');
?>"><?php
_e('Title:');
?></label>
<input class="widefat" id="<?php
echo $this->get_field_id('title');
?>" name="<?php
echo $this->get_field_name('title');
?>" type="text" value="<?php
echo esc_attr($instance['title']);
?>"/>
</p>
<div class="notice inline notice-info notice-alt">
<?php
if (!isset($instance['visual'])) {
?>
<p><?php
_e('This widget may contain code that may work better in the “Custom HTML” widget. How about trying that widget instead?');
?></p>
<?php
} else {
?>
<p><?php
_e('This widget may have contained code that may work better in the “Custom HTML” widget. If you haven’t yet, how about trying that widget instead?');
?></p>
<?php
}
?>
</div>
<p>
<label for="<?php
echo $this->get_field_id('text');
?>"><?php
_e('Content:');
?></label>
<textarea class="widefat" rows="16" cols="20" id="<?php
echo $this->get_field_id('text');
?>" name="<?php
echo $this->get_field_name('text');
?>"><?php
echo esc_textarea($instance['text']);
?></textarea>
</p>
<p>
<input id="<?php
echo $this->get_field_id('filter');
?>" name="<?php
echo $this->get_field_name('filter');
?>" type="checkbox"<?php
checked(!empty($instance['filter']));
?> /> <label for="<?php
echo $this->get_field_id('filter');
?>"><?php
_e('Automatically add paragraphs');
?></label>
</p>
<?php
}
}
public static function render_control_template_scripts()
{
$dismissed_pointers = explode(',', (string) get_user_meta(get_current_user_id(), 'dismissed_wp_pointers', true));
?>
<script type="text/html" id="tmpl-widget-text-control-fields">
<# var elementIdPrefix = 'el' + String( Math.random() ).replace( /\D/g, '' ) + '_' #>
<p>
<label for="{{ elementIdPrefix }}title"><?php
esc_html_e('Title:');
?></label>
<input id="{{ elementIdPrefix }}title" type="text" class="widefat title">
</p>
<?php
if (!in_array('text_widget_custom_html', $dismissed_pointers, true)) {
?>
<div hidden class="wp-pointer custom-html-widget-pointer wp-pointer-top">
<div class="wp-pointer-content">
<h3><?php
_e('New Custom HTML Widget');
?></h3>
<?php
if (is_customize_preview()) {
?>
<p><?php
_e('Did you know there is a “Custom HTML” widget now? You can find it by pressing the “<a class="add-widget" href="#">Add a Widget</a>” button and searching for “HTML”. Check it out to add some custom code to your site!');
?></p>
<?php
} else {
?>
<p><?php
_e('Did you know there is a “Custom HTML” widget now? You can find it by scanning the list of available widgets on this screen. Check it out to add some custom code to your site!');
?></p>
<?php
}
?>
<div class="wp-pointer-buttons">
<a class="close" href="#"><?php
_e('Dismiss');
?></a>
</div>
</div>
<div class="wp-pointer-arrow">
<div class="wp-pointer-arrow-inner"></div>
</div>
</div>
<?php
}
?>
<?php
if (!in_array('text_widget_paste_html', $dismissed_pointers, true)) {
?>
<div hidden class="wp-pointer paste-html-pointer wp-pointer-top">
<div class="wp-pointer-content">
<h3><?php
_e('Did you just paste HTML?');
?></h3>
<p><?php
_e('Hey there, looks like you just pasted HTML into the “Visual” tab of the Text widget. You may want to paste your code into the “Text” tab instead. Alternately, try out the new “Custom HTML” widget!');
?></p>
<div class="wp-pointer-buttons">
<a class="close" href="#"><?php
_e('Dismiss');
?></a>
</div>
</div>
<div class="wp-pointer-arrow">
<div class="wp-pointer-arrow-inner"></div>
</div>
</div>
<?php
}
?>
<p>
<label for="{{ elementIdPrefix }}text" class="screen-reader-text"><?php
esc_html_e('Content:');
?></label>
<textarea id="{{ elementIdPrefix }}text" class="widefat text wp-editor-area" style="height: 200px" rows="16" cols="20"></textarea>
</p>
</script>
<?php
}
}