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<?php |
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/** |
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* Custom Category Widget |
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* |
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* @package Essential_Widgets |
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*/ |
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|
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|
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/** |
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* Custom Category Widget |
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*/ |
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class EW_Categories extends WP_Widget { |
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|
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/** |
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* Holds widget settings defaults, populated in constructor. |
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* |
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* @var array |
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*/ |
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protected $defaults; |
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|
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function __construct() { |
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|
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$this->defaults = array( |
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'title' => esc_attr__( 'Categories', 'essential-widgets' ), |
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'taxonomy' => 'category', |
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'style' => 'list', |
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'include' => '', |
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'exclude' => '', |
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'exclude_tree' => '', |
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'child_of' => '', |
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'current_category' => '', |
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'search' => '', |
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'hierarchical' => true, |
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'hide_empty' => true, |
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'order' => 'ASC', |
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'orderby' => 'name', |
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'depth' => 0, |
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'number' => '', |
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'feed' => '', |
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'feed_type' => '', |
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'feed_image' => '', |
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'use_desc_for_title' => false, |
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'show_count' => false, |
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); |
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|
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$widget_ops = array( |
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'classname' => 'essential-widgets widget_categories ew-category ewcategory', |
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'description' => esc_html__( 'Displays a list of categories', 'essential-widgets' ), |
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); |
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|
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$control_ops = array( |
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'id_base' => 'ew-category' |
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); |
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|
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parent::__construct( |
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'ew-category', // Base ID |
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__( 'EW: Categories', 'essential-widgets' ), // Name |
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$widget_ops, |
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$control_ops |
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); |
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} |
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|
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function form($instance) { |
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// Merge the user-selected arguments with the defaults. |
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$instance = wp_parse_args( (array) $instance, $this->defaults ); |
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|
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// <select> element options. |
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$taxonomies = get_taxonomies( array( 'show_tagcloud' => true ), 'objects' ); |
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$terms = get_terms( $instance['taxonomy'] ); |
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|
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$style = array( |
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'list' => esc_attr__( 'List', 'essential-widgets' ), |
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'none' => esc_attr__( 'None', 'essential-widgets' ) |
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); |
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|
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$order = array( |
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'ASC' => esc_attr__( 'Ascending', 'essential-widgets' ), |
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'DESC' => esc_attr__( 'Descending', 'essential-widgets' ) |
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); |
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|
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$orderby = array( |
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'count' => esc_attr__( 'Count', 'essential-widgets' ), |
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'ID' => esc_attr__( 'ID', 'essential-widgets' ), |
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'name' => esc_attr__( 'Name', 'essential-widgets' ), |
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'slug' => esc_attr__( 'Slug', 'essential-widgets' ), |
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'term_group' => esc_attr__( 'Term Group', 'essential-widgets' ) |
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); |
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|
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$feed_type = array( |
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'' => '', |
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'atom' => esc_attr__( 'Atom', 'essential-widgets' ), |
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'rdf' => esc_attr__( 'RDF', 'essential-widgets' ), |
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'rss' => esc_attr__( 'RSS', 'essential-widgets' ), |
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'rss2' => esc_attr__( 'RSS 2.0', 'essential-widgets' ) |
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); ?> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Title:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" placeholder="<?php echo esc_attr( $this->defaults['title'] ); ?>" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Taxonomy:', 'essential-widgets' ); ?> |
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|
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<select class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'taxonomy' ) ); ?>"> |
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|
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<?php foreach ( $taxonomies as $taxonomy ) : ?> |
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|
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<option value="<?php echo esc_attr( $taxonomy->name ); ?>" <?php selected( $instance['taxonomy'], $taxonomy->name ); ?>><?php echo esc_html( $taxonomy->labels->singular_name ); ?></option> |
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|
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<?php endforeach; ?> |
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|
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</select> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Style:', 'essential-widgets' ); ?> |
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|
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<select class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'style' ) ); ?>"> |
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|
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<?php foreach ( $style as $option_value => $option_label ) : ?> |
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|
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<option value="<?php echo esc_attr( $option_value ); ?>" <?php selected( $instance['style'], $option_value ); ?>><?php echo esc_html($option_label ); ?></option> |
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|
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<?php endforeach; ?> |
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|
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</select> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Order:', 'essential-widgets' ); ?> |
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|
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<select class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'order' ) ); ?>"> |
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|
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<?php foreach ( $order as $option_value => $option_label ) : ?> |
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|
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<option value="<?php echo esc_attr( $option_value ); ?>" <?php selected( $instance['order'], $option_value ); ?>><?php echo esc_html($option_label ); ?></option> |
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|
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<?php endforeach; ?> |
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|
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</select> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Order By:', 'essential-widgets' ); ?> |
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|
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<select class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'orderby' ) ); ?>"> |
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|
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<?php foreach ( $orderby as $option_value => $option_label ) : ?> |
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|
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<option value="<?php echo esc_attr( $option_value ); ?>" <?php selected( $instance['orderby'], $option_value ); ?>><?php echo esc_html($option_label ); ?></option> |
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|
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<?php endforeach; ?> |
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|
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</select> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Depth:', 'essential-widgets' ); ?> |
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<input type="number" class="widefat" size="5" min="0" name="<?php echo esc_attr( $this->get_field_name( 'depth' ) ); ?>" value="<?php echo esc_attr( $instance['depth'] ); ?>" placeholder="0" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Number:', 'essential-widgets' ); ?> |
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<input type="number" class="widefat" size="5" min="0" name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" value="<?php echo esc_attr( $instance['number'] ); ?>" placeholder="0" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Include:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'include' ) ); ?>" value="<?php echo esc_attr( $instance['include'] ); ?>" placeholder="1,2,3…" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Exclude:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'exclude' ) ); ?>" value="<?php echo esc_attr( $instance['exclude'] ); ?>" placeholder="1,2,3…" /> |
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</label> |
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</p> |
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|
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<p class="button-primary more"><?php esc_html_e( 'More Options', 'essential-widgets' ); ?><i class="dashicons dashicons-arrow-down"></i></p> |
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|
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<div class="advanced-section"> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Exclude Tree:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'exclude_tree' ) ); ?>" value="<?php echo esc_attr( $instance['exclude_tree'] ); ?>" placeholder="1,2,3…" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Child Of:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'child_of' ) ); ?>" value="<?php echo esc_attr( $instance['child_of'] ); ?>" placeholder="0" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Current Category:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'current_category' ) ); ?>" value="<?php echo esc_attr( $instance['current_category'] ); ?>" placeholder="0" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Search:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'search' ) ); ?>" value="<?php echo esc_attr( $instance['search'] ); ?>" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Feed Type:', 'essential-widgets' ); ?> |
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|
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<select class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'feed_type' ) ); ?>"> |
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|
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<?php foreach ( $feed_type as $option_value => $option_label ) : ?> |
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|
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<option value="<?php echo esc_attr( $option_value ); ?>" <?php selected( $instance['feed_type'], $option_value ); ?>><?php echo esc_html($option_label ); ?></option> |
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|
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<?php endforeach; ?> |
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|
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</select> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Feed Text:', 'essential-widgets' ); ?> |
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<input type="text" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'feed' ) ); ?>" value="<?php echo esc_attr( $instance['feed'] ); ?>" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<?php esc_html_e( 'Feed Image:', 'essential-widgets' ); ?> |
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<input type="url" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'feed_image' ) ); ?>" value="<?php echo esc_attr( $instance['feed_image'] ); ?>" placeholder="<?php echo esc_attr( home_url( 'images/example.png' ) ); ?>" /> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<input type="checkbox" <?php checked( $instance['hierarchical'], true ); ?> name="<?php echo esc_attr( $this->get_field_name( 'hierarchical' ) ); ?>" /> |
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<?php esc_html_e( 'Hierarchical?', 'essential-widgets' ); ?> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<input type="checkbox" <?php checked( $instance['use_desc_for_title'], true ); ?> name="<?php echo esc_attr( $this->get_field_name( 'use_desc_for_title' ) ); ?>" /> |
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<?php esc_html_e( 'Show description on hover?', 'essential-widgets' ); ?> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<input type="checkbox" <?php checked( $instance['show_count'], true ); ?> name="<?php echo esc_attr( $this->get_field_name( 'show_count' ) ); ?>" /> |
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<?php esc_html_e( 'Show count?', 'essential-widgets' ); ?> |
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</label> |
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</p> |
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|
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<p> |
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<label> |
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<input type="checkbox" <?php checked( $instance['hide_empty'], true ); ?> name="<?php echo esc_attr( $this->get_field_name( 'hide_empty' ) ); ?>" /> |
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<?php esc_html_e( 'Hide empty?', 'essential-widgets' ); ?> |
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</label> |
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</p> |
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|
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</div><!-- .advanced-section --> |
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|
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<div style="clear:both;"> </div> |
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|
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|
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<?php |
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} |
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|
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function update( $new_instance, $old_instance ) { |
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|
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// If new taxonomy is chosen, reset includes and excludes. |
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if ( $new_instance['taxonomy'] !== $old_instance['taxonomy'] ) |
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$new_instance['include'] = $new_instance['exclude'] = ''; |
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|
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// Sanitize key. |
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$instance['taxonomy'] = sanitize_key( $new_instance['taxonomy'] ); |
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|
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// Sanitize title. |
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$instance['title'] = sanitize_text_field( $new_instance['title'] ); |
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|
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// Strip tags. |
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$instance['search'] = strip_tags( $new_instance['search'] ); |
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$instance['feed'] = strip_tags( $new_instance['feed'] ); |
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|
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// Whitelist options. |
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$order = array( 'ASC', 'DESC' ); |
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$orderby = array( 'count', 'ID', 'name', 'slug', 'term_group' ); |
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$style = array( 'list', 'none' ); |
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$feed_type = array( '', 'atom', 'rdf', 'rss', 'rss2' ); |
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|
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$instance['order'] = in_array( $new_instance['order'], $order ) ? $new_instance['order'] : 'ASC'; |
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$instance['orderby'] = in_array( $new_instance['orderby'], $orderby ) ? $new_instance['orderby'] : 'name'; |
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$instance['style'] = in_array( $new_instance['style'], $style ) ? $new_instance['style'] : 'list'; |
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$instance['feed_type'] = in_array( $new_instance['feed_type'], $feed_type ) ? $new_instance['feed_type'] : ''; |
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|
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// Integers. |
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$instance['number'] = intval( $new_instance['number'] ); |
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$instance['depth'] = absint( $new_instance['depth'] ); |
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$instance['child_of'] = absint( $new_instance['child_of'] ); |
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$instance['current_category'] = absint( $new_instance['current_category'] ); |
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|
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// Only allow integers and commas. |
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$instance['include'] = preg_replace( '/[^0-9,]/', '', $new_instance['include'] ); |
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$instance['exclude'] = preg_replace( '/[^0-9,]/', '', $new_instance['exclude'] ); |
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$instance['exclude_tree'] = preg_replace( '/[^0-9,]/', '', $new_instance['exclude_tree'] ); |
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|
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// URLs. |
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$instance['feed_image'] = esc_url_raw( $new_instance['feed_image'] ); |
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|
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// Checkboxes. |
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$instance['hierarchical'] = isset( $new_instance['hierarchical'] ) ? 1 : 0; |
| 337 |
$instance['use_desc_for_title'] = isset( $new_instance['use_desc_for_title'] ) ? 1 : 0; |
| 338 |
$instance['show_count'] = isset( $new_instance['show_count'] ) ? 1 : 0; |
| 339 |
$instance['hide_empty'] = isset( $new_instance['hide_empty'] ) ? 1 : 0; |
| 340 |
|
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// Return sanitized options. |
| 342 |
return $instance; |
| 343 |
} |
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|
| 345 |
function widget( $args, $instance ) { |
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// Set the $args for wp_list_categories() to the $instance array. |
| 347 |
$instance = wp_parse_args( $instance, $this->defaults ); |
| 348 |
|
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// Set the $title_li and $echo arguments to false. |
| 350 |
$instance['title_li'] = false; |
| 351 |
$instance['echo'] = false; |
| 352 |
|
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// Output the args's $before_widget wrapper. |
| 354 |
echo $args['before_widget']; |
| 355 |
|
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// If a title was input by the user, display it. |
| 357 |
if ( ! empty( $instance['title'] ) ) |
| 358 |
echo $args['before_title'] . apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base ) . $args['after_title']; |
| 359 |
|
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// Get the categories list. |
| 361 |
$categories = str_replace( array( "\r", "\n", "\t" ), '', wp_list_categories( $instance ) ); |
| 362 |
|
| 363 |
$categories = str_replace('</a> (', '</a> <span>(', $categories); |
| 364 |
$categories = str_replace(')', ')</span>', $categories); |
| 365 |
|
| 366 |
// If 'list' is the user-selected style, wrap the categories in an unordered list. |
| 367 |
if ( 'list' == $instance['style'] ) |
| 368 |
$categories = '<ul class="categories">' . $categories . '</ul><!-- .categories -->'; |
| 369 |
|
| 370 |
// If no style is given, wrap in a <p> tag for formatting. |
| 371 |
else |
| 372 |
$categories = '<p class="categories style-none">' . $categories . '</p>'; |
| 373 |
|
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// Output the categories list. |
| 375 |
echo $categories; |
| 376 |
|
| 377 |
// Close the args's widget wrapper. |
| 378 |
echo $args['after_widget']; |
| 379 |
} |
| 380 |
}// end Category_Widget class |
| 381 |
|
| 382 |
/** |
| 383 |
* Intiate Category_Widget Class. |
| 384 |
* |
| 385 |
* @since 1.0.0 |
| 386 |
*/ |
| 387 |
function ew_categories_register() { |
| 388 |
register_widget( 'EW_Categories' ); |
| 389 |
} |
| 390 |
add_action( 'widgets_init', 'ew_categories_register' ); |
| 391 |
|
