AnsPress_Category_Widget()

class AnsPress_Category_Widget extends WP_Widget {
	/**
	 * Construct
	 */
	public function __construct() {
		// Instantiate the parent object.
		parent::__construct(
			'AnsPress_Category_Widget',
			'(AnsPress) Categories',
		array( 'description', __( 'Display AnsPress categories', 'anspress-question-answer' ) ) );
	}

	public function widget( $args, $instance ) {
		$title = apply_filters( 'widget_title', $instance['title'] );

		echo $args['before_widget'];

		if ( ! empty( $title ) ) {
			echo $args['before_title'] . $title . $args['after_title'];
		}

		$cat_args = array(
			'parent' 		=> $instance['parent'],
			'number'		=> $instance['number'],
			'hide_empty'    => $instance['hide_empty'],
			'orderby'       => $instance['orderby'],
			'order'         => $instance['order'],
		);

		$icon_width = ! empty( $instance['icon_width'] ) ? $instance['icon_width'] : 32;
		$icon_height = ! empty( $instance['icon_height'] ) ? $instance['icon_height'] : 32;

		$categories = get_terms( 'question_category' , $cat_args );
		?>
	<ul id="ap-categories-widget" class="ap-cat-wid clearfix">
		<?php
			foreach ( (array) $categories as $key => $category ) :
				$ap_category = get_term_meta( $category->term_id, 'ap_category', true );
				$ap_category = wp_parse_args( $ap_category, [ 'color' => '#333', 'icon' => 'apicon-category' ] );
				$sub_cat_count = count(get_term_children( $category->term_id, 'question_category' ) );
			?>
			<li class="clearfix">
				<a class="ap-cat-image" style="height:<?php echo $icon_height; ?>px;width:<?php echo $icon_width; ?>px;background: <?php echo esc_attr( $ap_category['color'] ); ?>"
				  href="<?php echo get_category_link( $category );?>">
						<span class="ap-category-icon <?php echo esc_attr( $ap_category['icon'] ); ?>"></span>
					</a>
				<a class="ap-cat-wid-title" href="<?php echo get_category_link( $category );?>">
					<?php echo $category->name; ?>
				</a>
				<div class="ap-cat-count">
					<span><?php printf(_n('%d Question', '%d Questions', $category->count, 'anspress-question-answer' ), $category->count ); ?></span>
					<?php if ( $sub_cat_count > 0 ) : ?>
					<span><?php printf(__('%d Child', 'anspress-question-answer' ), $sub_cat_count ); ?></span>
					<?php endif; ?>
				</div>
			</li>
			<?php endforeach; ?>
		</ul>
	<?php
		echo $args['after_widget'];
	}

	public function form( $instance ) {
		$title = ! empty( $instance[ 'title' ] ) ? $instance[ 'title' ] : __( 'Categories', 'anspress-question-answer' );
		$hide_empty = ! empty( $instance[ 'hide_empty' ] ) ? $instance[ 'hide_empty' ] : false;
		$parent = ! empty( $instance[ 'parent' ] ) ? $instance[ 'parent' ] : 0;
		$number = ! empty( $instance[ 'number' ] ) ? $instance[ 'number' ] : 10;
		$orderby = ! empty( $instance[ 'orderby' ] ) ? $instance[ 'orderby' ] : 'count';
		$order = ! empty( $instance[ 'order' ] ) ? $instance[ 'order' ] : 'DESC';
		$icon_height = ! empty( $instance[ 'icon_height' ] ) ? $instance[ 'icon_height' ] : '32';
		$icon_width = ! empty( $instance[ 'icon_width' ] ) ? $instance[ 'icon_width' ] : '32';

		$cat_args = array(
			'hide_empty'    => false,
			'orderby'       => 'count',
			'order'         => 'DESC',
		);

		$categories = get_terms( 'question_category' , $cat_args );
		?>
		<p>
			<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:', 'anspress-question-answer' ); ?></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>
			<label for="<?php echo $this->get_field_id( 'hide_empty' ); ?>"><?php _e( 'Hide empty:', 'anspress-question-answer' ); ?></label>
			<input class="widefat" id="<?php echo $this->get_field_id( 'hide_empty' ); ?>" name="<?php echo $this->get_field_name( 'hide_empty' ); ?>"
			  type="checkbox" value="1" <?php checked( true, $hide_empty );?>>
		</p>
		<p>
			<label for="<?php echo $this->get_field_id( 'parent' ); ?>"><?php _e( 'Parent:', 'anspress-question-answer' ); ?></label>
			<select class="widefat" id="<?php echo $this->get_field_id( 'parent' ); ?>" name="<?php echo $this->get_field_name( 'parent' ); ?>">
				<option value="0"><?php _e('Top level', 'anspress-question-answer' ); ?></option>
				<?php
				if ( $categories ) {
					foreach ( $categories as $c ) {
						echo '<option value="'.$c->term_id.'" '.selected($parent, $c->term_id ).'>'.$c->name.'</option>'; }
				}

				?>
            </select>
		</p>
		<p>
			<label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number:', 'anspress-question-answer' ); ?></label>
			<input class="widefat" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>"
			  type="text" value="<?php echo esc_attr( $number ); ?>">
		</p>
		<p>
			<label for="<?php echo $this->get_field_id( 'orderby' ); ?>"><?php _e( 'Order By:', 'anspress-question-answer' ); ?></label>
			<select class="widefat" id="<?php echo $this->get_field_id( 'orderby' ); ?>" name="<?php echo $this->get_field_name( 'orderby' ); ?>">
				<option value="none" <?php echo selected($orderby, 'none' ); ?>><?php _e('None', 'anspress-question-answer' ); ?></option>
				<option value="count" <?php echo selected($orderby, 'count' ); ?>><?php _e('Count', 'anspress-question-answer' ); ?></option>
				<option value="id" <?php echo selected($orderby, 'id' ); ?>><?php _e('ID', 'anspress-question-answer' ); ?></option>
				<option value="name" <?php echo selected($orderby, 'name' ); ?>><?php _e('Name', 'anspress-question-answer' ); ?></option>
				<option value="slug" <?php echo selected($orderby, 'slug' ); ?>><?php _e('Slug', 'anspress-question-answer' ); ?></option>
				<option value="term_group" <?php echo selected($orderby, 'term_group' ); ?>><?php _e('Term group', 'anspress-question-answer' ); ?></option>
            </select>
		</p>
		<p>
			<label for="<?php echo $this->get_field_id( 'order' ); ?>"><?php _e( 'Order:', 'anspress-question-answer' ); ?></label>
			<select class="widefat" id="<?php echo $this->get_field_id( 'order' ); ?>" name="<?php echo $this->get_field_name( 'order' ); ?>">
				<option value="DESC" <?php echo selected($order, 'DESC' ); ?>><?php _e('DESC', 'anspress-question-answer' ); ?></option>
				<option value="ASC" <?php echo selected($order, 'ASC' ); ?>><?php _e('ASC', 'anspress-question-answer' ); ?></option>
            </select>
		</p>
		<p>
			<label for="<?php echo $this->get_field_id( 'icon_width' ); ?>"><?php _e( 'Icon width:', 'anspress-question-answer' ); ?></label>
			<input class="widefat" id="<?php echo $this->get_field_id( 'icon_width' ); ?>" name="<?php echo $this->get_field_name( 'icon_width' ); ?>"
			  type="text" value="<?php echo esc_attr( $icon_width ); ?>">
		</p>
		<p>
			<label for="<?php echo $this->get_field_id( 'icon_height' ); ?>"><?php _e( 'Icon height:', 'anspress-question-answer' ); ?></label>
			<input class="widefat" id="<?php echo $this->get_field_id( 'icon_height' ); ?>" name="<?php echo $this->get_field_name( 'icon_height' ); ?>"
			  type="text" value="<?php echo esc_attr( $icon_height ); ?>">
		</p>
		<?php
	}

	/**
	 * Sanitize widget form values as they are saved.
	 *
	 * @see WP_Widget::update()
	 *
	 * @param array $new_instance Values just sent to be saved.
	 * @param array $old_instance Previously saved values from database.
	 *
	 * @return array Updated safe values to be saved.
	 */
	public function update( $new_instance, $old_instance ) {
		$instance = array();
		$instance['title'] = ( ! empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';
		$instance['hide_empty'] = ( ! empty( $new_instance['hide_empty'] ) ) ? strip_tags( $new_instance['hide_empty'] ) : false;
		$instance['parent'] = ( ! empty( $new_instance['parent'] ) ) ? strip_tags( $new_instance['parent'] ) : '0';
		$instance['number'] = ( ! empty( $new_instance['number'] ) ) ? strip_tags( $new_instance['number'] ) : '5';
		$instance['orderby'] = ( ! empty( $new_instance['orderby'] ) ) ? strip_tags( $new_instance['orderby'] ) : 'count';
		$instance['order'] = ( ! empty( $new_instance['order'] ) ) ? strip_tags( $new_instance['order'] ) : 'DESC';
		$instance['icon_width'] = ( ! empty( $new_instance['icon_width'] ) ) ? (int)strip_tags( $new_instance['icon_width'] ) : 32;
		$instance['icon_height'] = ( ! empty( $new_instance['icon_height'] ) ) ? (int)strip_tags( $new_instance['icon_height'] ) : 32;

		return $instance;
	}
}