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class-wp-widget-links.php
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<?php /** * Widget API: WP_Widget_Links class * * @package WordPress * @subpackage Widgets * @since 4.4.0 */ /** * Core class used to implement a Links widget. * * @since 2.8.0 * * @see WP_Widget */ class WP_Widget_Links extends WP_Widget { /** * Sets up a new Links widget instance. * * @since 2.8.0 */ public function __construct() { $widget_ops = array( 'description' => __( 'Your blogroll' ), 'customize_selective_refresh' => true, ); parent::__construct( 'links', __( 'Links' ), $widget_ops ); } /** * Outputs the content for the current Links widget instance. * * @since 2.8.0 * * @param array $args Display arguments including 'before_title', 'after_title', * 'before_widget', and 'after_widget'. * @param array $instance Settings for the current Links widget instance. */ public function widget( $args, $instance ) { $show_description = isset( $instance['description'] ) ? $instance['description'] : false; $show_name = isset( $instance['name'] ) ? $instance['name'] : false; $show_rating = isset( $instance['rating'] ) ? $instance['rating'] : false; $show_images = isset( $instance['images'] ) ? $instance['images'] : true; $category = isset( $instance['category'] ) ? $instance['category'] : false; $orderby = isset( $instance['orderby'] ) ? $instance['orderby'] : 'name'; $order = 'rating' === $orderby ? 'DESC' : 'ASC'; $limit = isset( $instance['limit'] ) ? $instance['limit'] : -1; $before_widget = preg_replace( '/ id="[^"]*"/', ' id="%id"', $args['before_widget'] ); $widget_links_args = array( 'title_before' => $args['before_title'], 'title_after' => $args['after_title'], 'category_before' => $before_widget, 'category_after' => $args['after_widget'], 'show_images' => $show_images, 'show_description' => $show_description, 'show_name' => $show_name, 'show_rating' => $show_rating, 'category' => $category, 'class' => 'linkcat widget', 'orderby' => $orderby, 'order' => $order, 'limit' => $limit, ); /** * Filters the arguments for the Links widget. * * @since 2.6.0 * @since 4.4.0 Added the `$instance` parameter. * * @see wp_list_bookmarks() * * @param array $widget_links_args An array of arguments to retrieve the links list. * @param array $instance The settings for the particular instance of the widget. */ wp_list_bookmarks( apply_filters( 'widget_links_args', $widget_links_args, $instance ) ); } /** * Handles updating settings for the current Links widget instance. * * @since 2.8.0 * * @param array $new_instance New settings for this instance as input by the user via * WP_Widget::form(). * @param array $old_instance Old settings for this instance. * @return array Updated settings to save. */ public function update( $new_instance, $old_instance ) { $new_instance = (array) $new_instance; $instance = array( 'images' => 0, 'name' => 0, 'description' => 0, 'rating' => 0, ); foreach ( $instance as $field => $val ) { if ( isset( $new_instance[ $field ] ) ) { $instance[ $field ] = 1; } } $instance['orderby'] = 'name'; if ( in_array( $new_instance['orderby'], array( 'name', 'rating', 'id', 'rand' ), true ) ) { $instance['orderby'] = $new_instance['orderby']; } $instance['category'] = (int) $new_instance['category']; $instance['limit'] = ! empty( $new_instance['limit'] ) ? (int) $new_instance['limit'] : -1; return $instance; } /** * Outputs the settings form for the Links widget. * * @since 2.8.0 * * @param array $instance Current settings. */ public function form( $instance ) { // Defaults. $instance = wp_parse_args( (array) $instance, array( 'images' => true, 'name' => true, 'description' => false, 'rating' => false, 'category' => false, 'orderby' => 'name', 'limit' => -1, ) ); $link_cats = get_terms( array( 'taxonomy' => 'link_category' ) ); $limit = (int) $instance['limit']; if ( ! $limit ) { $limit = -1; } ?> <p> <label for="<?php echo $this->get_field_id( 'category' ); ?>"><?php _e( 'Select Link Category:' ); ?></label> <select class="widefat" id="<?php echo $this->get_field_id( 'category' ); ?>" name="<?php echo $this->get_field_name( 'category' ); ?>"> <option value=""><?php _ex( 'All Links', 'links widget' ); ?></option> <?php foreach ( $link_cats as $link_cat ) : ?> <option value="<?php echo (int) $link_cat->term_id; ?>" <?php selected( $instance['category'], $link_cat->term_id ); ?>> <?php echo esc_html( $link_cat->name ); ?> </option> <?php endforeach; ?> </select> <label for="<?php echo $this->get_field_id( 'orderby' ); ?>"><?php _e( 'Sort by:' ); ?></label> <select name="<?php echo $this->get_field_name( 'orderby' ); ?>" id="<?php echo $this->get_field_id( 'orderby' ); ?>" class="widefat"> <option value="name"<?php selected( $instance['orderby'], 'name' ); ?>><?php _e( 'Link title' ); ?></option> <option value="rating"<?php selected( $instance['orderby'], 'rating' ); ?>><?php _e( 'Link rating' ); ?></option> <option value="id"<?php selected( $instance['orderby'], 'id' ); ?>><?php _e( 'Link ID' ); ?></option> <option value="rand"<?php selected( $instance['orderby'], 'rand' ); ?>><?php _ex( 'Random', 'Links widget' ); ?></option> </select> </p> <p> <input class="checkbox" type="checkbox"<?php checked( $instance['images'], true ); ?> id="<?php echo $this->get_field_id( 'images' ); ?>" name="<?php echo $this->get_field_name( 'images' ); ?>" /> <label for="<?php echo $this->get_field_id( 'images' ); ?>"><?php _e( 'Show Link Image' ); ?></label> <br /> <input class="checkbox" type="checkbox"<?php checked( $instance['name'], true ); ?> id="<?php echo $this->get_field_id( 'name' ); ?>" name="<?php echo $this->get_field_name( 'name' ); ?>" /> <label for="<?php echo $this->get_field_id( 'name' ); ?>"><?php _e( 'Show Link Name' ); ?></label> <br /> <input class="checkbox" type="checkbox"<?php checked( $instance['description'], true ); ?> id="<?php echo $this->get_field_id( 'description' ); ?>" name="<?php echo $this->get_field_name( 'description' ); ?>" /> <label for="<?php echo $this->get_field_id( 'description' ); ?>"><?php _e( 'Show Link Description' ); ?></label> <br /> <input class="checkbox" type="checkbox"<?php checked( $instance['rating'], true ); ?> id="<?php echo $this->get_field_id( 'rating' ); ?>" name="<?php echo $this->get_field_name( 'rating' ); ?>" /> <label for="<?php echo $this->get_field_id( 'rating' ); ?>"><?php _e( 'Show Link Rating' ); ?></label> </p> <p> <label for="<?php echo $this->get_field_id( 'limit' ); ?>"><?php _e( 'Number of links to show:' ); ?></label> <input id="<?php echo $this->get_field_id( 'limit' ); ?>" name="<?php echo $this->get_field_name( 'limit' ); ?>" type="text" value="<?php echo ( -1 !== $limit ) ? (int) $limit : ''; ?>" size="3" /> </p> <?php } }