You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
206 lines
6.8 KiB
206 lines
6.8 KiB
<?php
|
|
/**
|
|
* Widget API: WP_Widget_Categories class
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Widgets
|
|
* @since 4.4.0
|
|
*/
|
|
|
|
/**
|
|
* Core class used to implement a Categories widget.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @see WP_Widget
|
|
*/
|
|
class WP_Widget_Categories extends WP_Widget {
|
|
|
|
/**
|
|
* Sets up a new Categories widget instance.
|
|
*
|
|
* @since 2.8.0
|
|
*/
|
|
public function __construct() {
|
|
$widget_ops = array(
|
|
'classname' => 'widget_categories',
|
|
'description' => __( 'A list or dropdown of categories.' ),
|
|
'customize_selective_refresh' => true,
|
|
'show_instance_in_rest' => true,
|
|
);
|
|
parent::__construct( 'categories', __( 'Categories' ), $widget_ops );
|
|
}
|
|
|
|
/**
|
|
* Outputs the content for the current Categories widget instance.
|
|
*
|
|
* @since 2.8.0
|
|
* @since 4.2.0 Creates a unique HTML ID for the `<select>` element
|
|
* if more than one instance is displayed on the page.
|
|
*
|
|
* @param array $args Display arguments including 'before_title', 'after_title',
|
|
* 'before_widget', and 'after_widget'.
|
|
* @param array $instance Settings for the current Categories widget instance.
|
|
*/
|
|
public function widget( $args, $instance ) {
|
|
static $first_dropdown = true;
|
|
|
|
$default_title = __( 'Categories' );
|
|
$title = ! empty( $instance['title'] ) ? $instance['title'] : $default_title;
|
|
|
|
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
|
|
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
|
|
|
|
$count = ! empty( $instance['count'] ) ? '1' : '0';
|
|
$hierarchical = ! empty( $instance['hierarchical'] ) ? '1' : '0';
|
|
$dropdown = ! empty( $instance['dropdown'] ) ? '1' : '0';
|
|
|
|
echo $args['before_widget'];
|
|
|
|
if ( $title ) {
|
|
echo $args['before_title'] . $title . $args['after_title'];
|
|
}
|
|
|
|
$cat_args = array(
|
|
'orderby' => 'name',
|
|
'show_count' => $count,
|
|
'hierarchical' => $hierarchical,
|
|
);
|
|
|
|
if ( $dropdown ) {
|
|
printf( '<form action="%s" method="get">', esc_url( home_url() ) );
|
|
$dropdown_id = ( $first_dropdown ) ? 'cat' : "{$this->id_base}-dropdown-{$this->number}";
|
|
$first_dropdown = false;
|
|
|
|
echo '<label class="screen-reader-text" for="' . esc_attr( $dropdown_id ) . '">' . $title . '</label>';
|
|
|
|
$cat_args['show_option_none'] = __( 'Select Category' );
|
|
$cat_args['id'] = $dropdown_id;
|
|
|
|
/**
|
|
* Filters the arguments for the Categories widget drop-down.
|
|
*
|
|
* @since 2.8.0
|
|
* @since 4.9.0 Added the `$instance` parameter.
|
|
*
|
|
* @see wp_dropdown_categories()
|
|
*
|
|
* @param array $cat_args An array of Categories widget drop-down arguments.
|
|
* @param array $instance Array of settings for the current widget.
|
|
*/
|
|
wp_dropdown_categories( apply_filters( 'widget_categories_dropdown_args', $cat_args, $instance ) );
|
|
|
|
echo '</form>';
|
|
|
|
ob_start();
|
|
?>
|
|
|
|
<script>
|
|
(function() {
|
|
var dropdown = document.getElementById( "<?php echo esc_js( $dropdown_id ); ?>" );
|
|
function onCatChange() {
|
|
if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) {
|
|
dropdown.parentNode.submit();
|
|
}
|
|
}
|
|
dropdown.onchange = onCatChange;
|
|
})();
|
|
</script>
|
|
|
|
<?php
|
|
wp_print_inline_script_tag( wp_remove_surrounding_empty_script_tags( ob_get_clean() ) );
|
|
} else {
|
|
$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';
|
|
|
|
/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */
|
|
$format = apply_filters( 'navigation_widgets_format', $format );
|
|
|
|
if ( 'html5' === $format ) {
|
|
// The title may be filtered: Strip out HTML and make sure the aria-label is never empty.
|
|
$title = trim( strip_tags( $title ) );
|
|
$aria_label = $title ? $title : $default_title;
|
|
echo '<nav aria-label="' . esc_attr( $aria_label ) . '">';
|
|
}
|
|
?>
|
|
|
|
<ul>
|
|
<?php
|
|
$cat_args['title_li'] = '';
|
|
|
|
/**
|
|
* Filters the arguments for the Categories widget.
|
|
*
|
|
* @since 2.8.0
|
|
* @since 4.9.0 Added the `$instance` parameter.
|
|
*
|
|
* @param array $cat_args An array of Categories widget options.
|
|
* @param array $instance Array of settings for the current widget.
|
|
*/
|
|
wp_list_categories( apply_filters( 'widget_categories_args', $cat_args, $instance ) );
|
|
?>
|
|
</ul>
|
|
|
|
<?php
|
|
if ( 'html5' === $format ) {
|
|
echo '</nav>';
|
|
}
|
|
}
|
|
|
|
echo $args['after_widget'];
|
|
}
|
|
|
|
/**
|
|
* Handles updating settings for the current Categories 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 ) {
|
|
$instance = $old_instance;
|
|
$instance['title'] = sanitize_text_field( $new_instance['title'] );
|
|
$instance['count'] = ! empty( $new_instance['count'] ) ? 1 : 0;
|
|
$instance['hierarchical'] = ! empty( $new_instance['hierarchical'] ) ? 1 : 0;
|
|
$instance['dropdown'] = ! empty( $new_instance['dropdown'] ) ? 1 : 0;
|
|
|
|
return $instance;
|
|
}
|
|
|
|
/**
|
|
* Outputs the settings form for the Categories widget.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $instance Current settings.
|
|
*/
|
|
public function form( $instance ) {
|
|
// Defaults.
|
|
$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
|
|
$count = isset( $instance['count'] ) ? (bool) $instance['count'] : false;
|
|
$hierarchical = isset( $instance['hierarchical'] ) ? (bool) $instance['hierarchical'] : false;
|
|
$dropdown = isset( $instance['dropdown'] ) ? (bool) $instance['dropdown'] : false;
|
|
?>
|
|
<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>
|
|
|
|
<p>
|
|
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'dropdown' ); ?>" name="<?php echo $this->get_field_name( 'dropdown' ); ?>"<?php checked( $dropdown ); ?> />
|
|
<label for="<?php echo $this->get_field_id( 'dropdown' ); ?>"><?php _e( 'Display as dropdown' ); ?></label>
|
|
<br />
|
|
|
|
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'count' ); ?>" name="<?php echo $this->get_field_name( 'count' ); ?>"<?php checked( $count ); ?> />
|
|
<label for="<?php echo $this->get_field_id( 'count' ); ?>"><?php _e( 'Show post counts' ); ?></label>
|
|
<br />
|
|
|
|
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'hierarchical' ); ?>" name="<?php echo $this->get_field_name( 'hierarchical' ); ?>"<?php checked( $hierarchical ); ?> />
|
|
<label for="<?php echo $this->get_field_id( 'hierarchical' ); ?>"><?php _e( 'Show hierarchy' ); ?></label>
|
|
</p>
|
|
<?php
|
|
}
|
|
}
|