<?php

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/**

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* Widget API: WP_Widget_Meta class

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*

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* @package WordPress

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* @subpackage Widgets

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* @since 4.4.0

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*/

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/**

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* Core class used to implement a Meta widget.

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*

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* Displays log in/out, RSS feed links, etc.

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*

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* @since 2.8.0

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*

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* @see WP_Widget

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*/

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class WP_Widget_Meta extends WP_Widget {

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/**

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* Sets up a new Meta widget instance.

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*

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* @since 2.8.0

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*/

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public function __construct() {

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$widget_ops = array(

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'classname' => 'widget_meta',

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'description' => __( 'Login, RSS, &amp; WordPress.org links.' ),

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'customize_selective_refresh' => true,

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'show_instance_in_rest' => true,

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);

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parent::__construct( 'meta', __( 'Meta' ), $widget_ops );

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}

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/**

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* Outputs the content for the current Meta widget instance.

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*

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* @since 2.8.0

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*

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* @param array $args Display arguments including 'before_title', 'after_title',

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* 'before_widget', and 'after_widget'.

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* @param array $instance Settings for the current Meta widget instance.

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*/

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public function widget( $args, $instance ) {

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$default_title = __( 'Meta' );

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$title = ! empty( $instance['title'] ) ? $instance['title'] : $default_title;

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/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */

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$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );

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echo $args['before_widget'];

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if ( $title ) {

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echo $args['before_title'] . $title . $args['after_title'];

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}

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$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';

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/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */

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$format = apply_filters( 'navigation_widgets_format', $format );

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if ( 'html5' === $format ) {

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// The title may be filtered: Strip out HTML and make sure the aria-label is never empty.

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$title = trim( strip_tags( $title ) );

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$aria_label = $title ? $title : $default_title;

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echo '<nav aria-label="' . esc_attr( $aria_label ) . '">';

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}

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?>

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<ul>

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<?php wp_register(); ?>

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<li><?php wp_loginout(); ?></li>

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<li><a href="<?php echo esc_url( get_bloginfo( 'rss2_url' ) ); ?>"><?php _e( 'Entries feed' ); ?></a></li>

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<li><a href="<?php echo esc_url( get_bloginfo( 'comments_rss2_url' ) ); ?>"><?php _e( 'Comments feed' ); ?></a></li>

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<?php

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/**

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* Filters the "WordPress.org" list item HTML in the Meta widget.

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*

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* @since 3.6.0

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* @since 4.9.0 Added the `$instance` parameter.

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*

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* @param string $html Default HTML for the WordPress.org list item.

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* @param array $instance Array of settings for the current widget.

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*/

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echo apply_filters(

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'widget_meta_poweredby',

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sprintf(

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'<li><a href="%1$s">%2$s</a></li>',

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esc_url( __( 'https://wordpress.org/' ) ),

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__( 'WordPress.org' )

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),

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$instance

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);

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wp_meta();

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?>

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</ul>

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<?php

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if ( 'html5' === $format ) {

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echo '</nav>';

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}

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echo $args['after_widget'];

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}

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/**

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* Handles updating settings for the current Meta widget instance.

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*

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* @since 2.8.0

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*

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* @param array $new_instance New settings for this instance as input by the user via

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* WP_Widget::form().

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* @param array $old_instance Old settings for this instance.

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* @return array Updated settings to save.

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*/

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public function update( $new_instance, $old_instance ) {

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$instance = $old_instance;

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$instance['title'] = sanitize_text_field( $new_instance['title'] );

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return $instance;

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}

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/**

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* Outputs the settings form for the Meta widget.

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*

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* @since 2.8.0

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*

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* @param array $instance Current settings.

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*/

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public function form( $instance ) {

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$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );

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?>

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<p>

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<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>

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<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'] ); ?>" />

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</p>

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<?php

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}

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}

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