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<!DOCTYPE html>
<html>
<?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 Crum_Widget_Categories extends WP_Widget {

	/**
	 * Sets up a new Categories widget instance.
	 *
	 * @since  2.8.0
	 * @access public
	 */
	public function __construct() {
		$widget_ops = array( 'classname'   => 'widget-categories',
		                     'description' => esc_html__( "A list or dropdown of categories.", 'polo_extension' )
		);
		parent::__construct( 'crum_categories', esc_html__( 'Crumina: Categories', 'polo_extension' ), $widget_ops );
	}

	/**
	 * Outputs the content for the current Categories widget instance.
	 *
	 * @since  2.8.0
	 * @access public
	 *
	 * @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;

		/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? esc_html__( 'Categories' ) : $instance['title'], $instance, $this->id_base );

		$c = ! empty( $instance['count'] ) ? '1' : '0';
		$h = ! empty( $instance['hierarchical'] ) ? '1' : '0';
		$d = ! 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'   => $c,
			'hierarchical' => $h
		);

		if ( $d ) {
			$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'] = esc_html__( 'Select Category' );
			$cat_args['id']               = $dropdown_id;

			/**
			 * Filter the arguments for the Categories widget drop-down.
			 *
			 * @since 2.8.0
			 *
			 * @see   wp_dropdown_categories()
			 *
			 * @param array $cat_args An array of Categories widget drop-down arguments.
			 */
			wp_dropdown_categories( apply_filters( 'widget_categories_dropdown_args', $cat_args ) );
			?>

			<script type='text/javascript'>
				/* <![CDATA[ */
				(function () {
					var dropdown = document.getElementById("<?php echo esc_js( $dropdown_id ); ?>");

					function onCatChange() {
						if (dropdown.options[dropdown.selectedIndex].value > 0) {
							location.href = "<?php echo home_url(); ?>/?cat=" + dropdown.options[dropdown.selectedIndex].value;
						}
					}

					dropdown.onchange = onCatChange;
				})();
				/* ]]> */
			</script>

		<?php
		} else {
			?>
			<ul class="list list-arrow-icons">
				<?php
				$cat_args['title_li'] = '';

				/**
				 * Filter the arguments for the Categories widget.
				 *
				 * @since 2.8.0
				 *
				 * @param array $cat_args An array of Categories widget options.
				 */
				wp_list_categories( apply_filters( 'widget_categories_args', $cat_args ) );
				?>
			</ul>
		<?php
		}

		echo $args['after_widget'];
	}

	/**
	 * Handles updating settings for the current Categories widget instance.
	 *
	 * @since  2.8.0
	 * @access public
	 *
	 * @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
	 * @access public
	 *
	 * @param array $instance Current settings.
	 */
	public function form( $instance ) {
		//Defaults
		$instance     = wp_parse_args( (array) $instance, array( 'title' => '' ) );
		$title        = sanitize_text_field( $instance['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 esc_html_e( 'Title:', 'polo_extension' ); ?></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( $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 esc_html_e( 'Display as dropdown', 'polo_extension' ); ?></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 esc_html_e( 'Show post counts', 'polo_extension' ); ?></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 esc_html_e( 'Show hierarchy', 'polo_extension' ); ?></label>
		</p>
	<?php
	}

}

function Cruimna_Categories_Widget_init() {
	register_widget( 'Crum_Widget_Categories' );
}

add_action( 'widgets_init', 'Cruimna_Categories_Widget_init' );