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<?php
class Penci_Widget_Custom_HTML extends WP_Widget {
protected $registered = false;
protected $default_instance = array(
'title' => '',
'content' => '',
'dis_padding' => '',
'dis_background' => '',
);
public function __construct() {
$widget_ops = array(
'classname' => 'widget_custom_html',
'description' => __( 'Arbitrary HTML code.' ),
'customize_selective_refresh' => true,
);
$control_ops = array(
'width' => 400,
'height' => 350,
);
parent::__construct( 'penci_custom_html', __( '.PenNews: Custom HTML' ), $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( 'custom-html-widgets', sprintf( 'wp.customHtmlWidgets.idBases.push( %s );', wp_json_encode( $this->id_base ) ) );
add_action( 'admin_print_scripts-widgets.php', array( $this, 'enqueue_admin_scripts' ) );
add_action( 'admin_footer-widgets.php', array( 'WP_Widget_Custom_HTML', 'render_control_template_scripts' ) );
add_action( 'admin_head-widgets.php', array( 'WP_Widget_Custom_HTML', 'add_help_text' ) );
}
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;
$original_post = $post;
if ( is_singular() ) {
$post = get_queried_object();
} else {
$post = null;
}
add_filter( 'shortcode_atts_gallery', array( $this, '_filter_gallery_shortcode_attrs' ) );
$instance = array_merge( $this->default_instance, $instance );
$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
$simulated_text_widget_instance = array_merge( $instance, array(
'text' => isset( $instance['content'] ) ? $instance['content'] : '',
'filter' => false,
'visual' => false,
) );
unset( $simulated_text_widget_instance['content'] );
$content = apply_filters( 'widget_text', $instance['content'], $simulated_text_widget_instance, $this );
$content = apply_filters( 'widget_custom_html_content', $content, $instance, $this );
// Restore post global.
$post = $original_post;
remove_filter( 'shortcode_atts_gallery', array( $this, '_filter_gallery_shortcode_attrs' ) );
// Inject the Text widget's container class name alongside this widget's class name for theme styling compatibility.
$args['before_widget'] = preg_replace( '/(?<=\sclass=["\'])/', 'widget_text ', $args['before_widget'] );
echo $args['before_widget'];
if ( ! empty( $title ) ) {
echo $args['before_title'] . $title . $args['after_title'];
}
echo '<div class="textwidget custom-html-widget">'; // The textwidget class is for theme styling compatibility.
echo $content;
echo '</div>';
echo $args['after_widget'];
$dis_padding = isset( $instance['dis_padding'] ) ? (bool) $instance['dis_padding'] : false;
$dis_background = isset( $instance['dis_background'] ) ? (bool) $instance['dis_background'] : false;
$widget_id = isset( $args['widget_id'] ) ? $args['widget_id'] : '';
if( $widget_id && ( $dis_padding || $dis_background ) ){
echo '<style>';
echo '#' . $widget_id . '.widget{';
if( $dis_padding ){
echo 'padding: 0 !important;';
}
if( $dis_background ){
echo 'background-color: transparent !important;';
}
echo '}';
if( $dis_padding ){
echo '#' . $widget_id . '.style-title-8:not(.footer-widget) .penci-block__title:before,';
echo '#' . $widget_id . '.style-title-1:not(.footer-widget) .penci-block__title:before{ right: 0; left: 0; }';
}
echo '</style>';
}
}
public function update( $new_instance, $old_instance ) {
$instance = array_merge( $this->default_instance, $old_instance );
$instance['title'] = sanitize_text_field( $new_instance['title'] );
if ( current_user_can( 'unfiltered_html' ) ) {
$instance['content'] = $new_instance['content'];
} else {
$instance['content'] = wp_kses_post( $new_instance['content'] );
}
$instance['dis_background'] = isset( $new_instance['dis_background'] ) ? (bool) $new_instance['dis_background'] : false;
$instance['dis_padding'] = isset( $new_instance['dis_padding'] ) ? (bool) $new_instance['dis_padding'] : false;
return $instance;
}
public function enqueue_admin_scripts() {
$settings = wp_enqueue_code_editor( array(
'type' => 'text/html',
'codemirror' => array(
'indentUnit' => 2,
'tabSize' => 2,
),
) );
wp_enqueue_script( 'custom-html-widgets' );
if ( empty( $settings ) ) {
$settings = array(
'disabled' => true,
);
}
wp_add_inline_script( 'custom-html-widgets', sprintf( 'wp.customHtmlWidgets.init( %s );', wp_json_encode( $settings ) ), 'after' );
$l10n = array(
'errorNotice' => array(
'singular' => _n( 'There is %d error which must be fixed before you can save.', 'There are %d errors which must be fixed before you can save.', 1 ),
'plural' => _n( 'There is %d error which must be fixed before you can save.', 'There are %d errors which must be fixed before you can save.', 2 ), // @todo This is lacking, as some languages have a dedicated dual form. For proper handling of plurals in JS, see #20491.
),
);
wp_add_inline_script( 'custom-html-widgets', sprintf( 'jQuery.extend( wp.customHtmlWidgets.l10n, %s );', wp_json_encode( $l10n ) ), 'after' );
}
public function form( $instance ) {
$instance = wp_parse_args( (array) $instance, $this->default_instance );
$dis_padding = isset( $instance['dis_padding'] ) ? (bool) $instance['dis_padding'] : false;
$dis_background = isset( $instance['dis_background'] ) ? (bool) $instance['dis_background'] : false;
?>
<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( 'content' ); ?>" name="<?php echo $this->get_field_name( 'content' ); ?>" class="content sync-input" hidden><?php echo esc_textarea( $instance['content'] ); ?></textarea>
<p><input class="checkbox" type="checkbox"<?php checked( $dis_background ); ?> id="<?php echo $this->get_field_id( 'dis_background' ); ?>" name="<?php echo $this->get_field_name( 'dis_background' ); ?>" />
<label for="<?php echo $this->get_field_id( 'dis_background' ); ?>"><?php _e( 'Disable background?' ); ?></label></p>
<p><input class="checkbox" type="checkbox"<?php checked( $dis_padding ); ?> id="<?php echo $this->get_field_id( 'dis_padding' ); ?>" name="<?php echo $this->get_field_name( 'dis_padding' ); ?>" />
<label for="<?php echo $this->get_field_id( 'dis_padding' ); ?>"><?php _e( 'Disable padding?' ); ?></label></p>
<?php
}
public static function render_control_template_scripts() {
?>
<script type="text/html" id="tmpl-widget-custom-html-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>
<p>
<label for="{{ elementIdPrefix }}content" id="{{ elementIdPrefix }}content-label"><?php esc_html_e( 'Content:' ); ?></label>
<textarea id="{{ elementIdPrefix }}content" class="widefat code content" rows="16" cols="20"></textarea>
</p>
<?php if ( ! current_user_can( 'unfiltered_html' ) ) : ?>
<?php
$probably_unsafe_html = array( 'script', 'iframe', 'form', 'input', 'style' );
$allowed_html = wp_kses_allowed_html( 'post' );
$disallowed_html = array_diff( $probably_unsafe_html, array_keys( $allowed_html ) );
?>
<?php if ( ! empty( $disallowed_html ) ) : ?>
<# if ( data.codeEditorDisabled ) { #>
<p>
<?php _e( 'Some HTML tags are not permitted, including:' ); ?>
<code><?php echo join( '</code>, <code>', $disallowed_html ); ?></code>
</p>
<# } #>
<?php endif; ?>
<?php endif; ?>
<div class="code-editor-error-container"></div>
</script>
<?php
}
public static function add_help_text() {
$screen = get_current_screen();
$content = '<p>';
$content .= __( 'Use the Custom HTML widget to add arbitrary HTML code to your widget areas.' );
$content .= '</p>';
if ( 'false' !== wp_get_current_user()->syntax_highlighting ) {
$content .= '<p>';
$content .= sprintf(
/* translators: 1: link to user profile, 2: additional link attributes, 3: accessibility text */
__( 'The edit field automatically highlights code syntax. You can disable this in your <a href="%1$s" %2$s>user profile%3$s</a> to work in plain text mode.' ),
esc_url( get_edit_profile_url() ),
'class="external-link" target="_blank"',
sprintf( '<span class="screen-reader-text"> %s</span>',
/* translators: accessibility text */
__( '(opens in a new window)' )
)
);
$content .= '</p>';
$content .= '<p id="editor-keyboard-trap-help-1">' . __( 'When using a keyboard to navigate:' ) . '</p>';
$content .= '<ul>';
$content .= '<li id="editor-keyboard-trap-help-2">' . __( 'In the editing area, the Tab key enters a tab character.' ) . '</li>';
$content .= '<li id="editor-keyboard-trap-help-3">' . __( 'To move away from this area, press the Esc key followed by the Tab key.' ) . '</li>';
$content .= '<li id="editor-keyboard-trap-help-4">' . __( 'Screen reader users: when in forms mode, you may need to press the Esc key twice.' ) . '</li>';
$content .= '</ul>';
}
$screen->add_help_tab( array(
'id' => 'custom_html_widget',
'title' => __( 'Custom HTML Widget' ),
'content' => $content,
) );
}
}
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