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<?php
/**
 * Widget Muffin Menu
 *
 * @package Betheme
 * @author Muffin group
 * @link http://muffingroup.com
 */

if ( ! class_exists( 'Mfn_Menu_Widget' ) ){
	class Mfn_Menu_Widget extends WP_Widget {
	
		
		/* ---------------------------------------------------------------------------
		 * Constructor
		 * --------------------------------------------------------------------------- */
		function __construct(){
			
			$widget_ops = array( 'classname' => 'widget_mfn_menu', 'description' => __( 'Use this widget on pages to display aside menu with children or siblings of the current page', 'mfn-opts' ) );
			
			parent::__construct( 'widget_mfn_menu', __( 'Muffin Menu', 'mfn-opts' ), $widget_ops );
			
			$this->alt_option_name = 'widget_mfn_menu';
		}
		
		
		/* ---------------------------------------------------------------------------
		 * Outputs the HTML for this widget.
		 * --------------------------------------------------------------------------- */
		function widget( $args, $instance ) {
	
			if ( ! isset( $args['widget_id'] ) ) $args['widget_id'] = null;
			extract( $args, EXTR_SKIP );
	
			$title = "";
			if( $instance['use_page_title'] ){
				$title = wp_title( '', false );
			} elseif( $instance['title'] ) {
				$title = $instance['title'];
			}
	
			$title = apply_filters( 'widget_title', $title, $instance, $this->id_base);
	
			echo $before_widget;
			
			if( $title ) echo $before_title . $title . $after_title;
	
			if( ! $instance['nav_menu'] ){
	
				// Pages Menu -------------------------------------------
				
				$parentID = false;
				if( $instance['use_page_sibling']==1 ){
					// sibling -------------------------------
					$aPost = get_post( get_the_ID() );
					if( is_array($aPost->ancestors) && key_exists(0, $aPost->ancestors) ) $parentID = $aPost->ancestors[0];
				} else {
					// children ------------------------------
					$parentID = get_the_ID();
				}
				
				$aPages_attr = array(
					'title_li' 		=> '',	
					'depth' 		=> $instance['depth'] ? intval($instance['depth']) : 1,
					'child_of'		=> $parentID,
					'link_before' 	=> '',
					'echo'			=> 0,
				);
		
				$aPages = wp_list_pages( $aPages_attr );
				
				// if there is no children --------------------
				if( ( ! $aPages ) && ( $instance['use_page_sibling'] == 2 ) ){
					$aPost = get_post( get_the_ID() );
					$parentID = false;
					if( is_array($aPost->ancestors) && key_exists(0, $aPost->ancestors) ) $parentID = $aPost->ancestors[0];
					
					$aPages_attr['child_of'] = $parentID;
					$aPages = wp_list_pages( $aPages_attr );
				}
		
				// echo ---------------------------------------
				if( $aPages ){
					echo '<ul class="menu">';
						echo $aPages;
					echo '</ul>';
				}
			
			} else {
				
				// Custom Menu -------------------------------------------
				$submenu = isset( $instance['submenus'] ) ? $instance['submenus'] : 'show';
				$args = array(
					'menu_class'	=> 'menu submenus-'. $submenu,
					'menu'			=> $instance['nav_menu'],
					'depth' 		=> $instance['depth'] ? intval($instance['depth']) : 1,
				);
				wp_nav_menu( $args );
	
			}
	
			echo $after_widget;
		}
	
	
		/* ---------------------------------------------------------------------------
		 * Deals with the settings when they are saved by the admin.
		 * --------------------------------------------------------------------------- */
		function update( $new_instance, $old_instance ) {
			$instance = $old_instance;
			$instance['title'] 				= strip_tags( $new_instance['title'] );
			$instance['nav_menu'] 			= (int) $new_instance['nav_menu'];
			
			$instance['depth'] 				= (int) $new_instance['depth'];
			$instance['submenus'] 			= strip_tags( $new_instance['submenus'] );
			
			$instance['use_page_title'] 	= (int) $new_instance['use_page_title'];
			$instance['use_page_sibling'] 	= (int) $new_instance['use_page_sibling'];
	
			return $instance;
		}
	
		
		/* ---------------------------------------------------------------------------
		 * Displays the form for this widget on the Widgets page of the WP Admin area.
		 * --------------------------------------------------------------------------- */
		function form( $instance ) {
			$title 				= isset( $instance['title']) ? esc_attr( $instance['title'] ) : '';	
			$nav_menu			= isset( $instance['nav_menu'] ) ? absint( $instance['nav_menu'] ) : 0;
			
			$depth				= isset( $instance['depth'] ) ? absint( $instance['depth'] ) : 1;
			$submenus			= isset( $instance['submenus'] ) ? esc_attr( $instance['submenus'] ) : '';
			
			$use_page_title 	= isset( $instance['use_page_title'] ) ? absint( $instance['use_page_title'] ) : 0;
			$use_page_sibling 	= isset( $instance['use_page_sibling'] ) ? absint( $instance['use_page_sibling'] ) : 2;		
			
			
			// Get menus
			$menus = wp_get_nav_menus( array( 'orderby' => 'name' ) );
	?>
				<p>
					<label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php _e( 'Title:', 'mfn-opts' ); ?></label>
					<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
				</p>
	
				<p>
					<input id="<?php echo esc_attr( $this->get_field_id( 'use_page_title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'use_page_title' ) ); ?>" type="checkbox" value="1" <?php if( esc_attr( $use_page_title ) ) echo "checked='checked'" ?>" />
					<label for="<?php echo esc_attr( $this->get_field_id( 'use_page_title' ) ); ?>"><?php _e( 'Use current page title', 'mfn-opts' ); ?></label>	
				</p>
				
				<p>
					<label for="<?php echo $this->get_field_id('nav_menu'); ?>"><?php _e( 'Menu:', 'mfn-opts' ); ?></label>
					<select id="<?php echo $this->get_field_id('nav_menu'); ?>" name="<?php echo $this->get_field_name('nav_menu'); ?>">
						<?php
							echo '<option value="0">'. __( '- Pages Menu -', 'mfn-opts' ) .'</option>';
							foreach ( $menus as $menu ) {
								echo '<option value="' . $menu->term_id . '" '. selected( $nav_menu, $menu->term_id, false ). '>'. $menu->name . '</option>';
							}
						?>
					</select>
				</p>
				
				<p>
					<label><b><?php _e('Options for Custom Menu','mfn-opts'); ?></b></label>
					<br />
					
					<label for="<?php echo esc_attr( $this->get_field_id( 'depth' ) ); ?>"><?php _e( 'Depth:', 'mfn-opts' ); ?></label>
					<input id="<?php echo esc_attr( $this->get_field_id( 'depth' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'depth' ) ); ?>" type="text" value="<?php echo esc_attr( $depth ); ?>" size="3"/>
					<br />
				
					<label for="<?php echo $this->get_field_id('submenus'); ?>"><?php _e( 'Submenus:', 'mfn-opts' ); ?></label>
					<select id="<?php echo $this->get_field_id('submenus'); ?>" name="<?php echo $this->get_field_name('submenus'); ?>">
						<?php
							echo '<option value="show" '. selected( $submenus, 'show', false ). '>'. __( 'Always show', 'mfn-opts' ) .'</option>';
							echo '<option value="hover" '. selected( $submenus, 'hover', false ). '>'. __( 'Show on hover', 'mfn-opts' ) .'</option>';
							echo '<option value="hover submenu-active" '. selected( $submenus, 'hover submenu-active', false ). '>'. __( 'Show on hover, always show active', 'mfn-opts' ) .'</option>';
							echo '<option value="click" '. selected( $submenus, 'click', false ). '>'. __( 'Show on click', 'mfn-opts' ) .'</option>';
						?>
					</select>
				</p>
				
				<p>
					<label><b><?php _e('Options for Pages Menu','mfn-opts'); ?></b></label>
					<br />
					
					<input id="<?php echo esc_attr( $this->get_field_id( 'use_page_sibling' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'use_page_sibling' ) ); ?>" type="radio" value="1" <?php if( $use_page_sibling==1  ) echo "checked='checked'" ?>" />
					<label for="<?php echo esc_attr( $this->get_field_id( 'use_page_sibling' ) ); ?>"><?php _e( 'Show page siblings', 'mfn-opts' ); ?></label>	
					<br/>
					
					<input id="<?php echo esc_attr( $this->get_field_id( 'use_page_childrens' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'use_page_sibling' ) ); ?>" type="radio" value="0" <?php if( ! $use_page_sibling ) echo "checked='checked'" ?>" />
					<label for="<?php echo esc_attr( $this->get_field_id( 'use_page_childrens' ) ); ?>"><?php _e( 'Show page children', 'mfn-opts' ); ?></label>	
					<br/>
					
					<input id="<?php echo esc_attr( $this->get_field_id( 'use_page_childrens2' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'use_page_sibling' ) ); ?>" type="radio" value="2" <?php if( $use_page_sibling==2 ) echo "checked='checked'" ?>" />
					<label for="<?php echo esc_attr( $this->get_field_id( 'use_page_childrens2' ) ); ?>"><?php _e( 'Show page children (if there is no children, show siblings)', 'mfn-opts' ); ?></label>	
				</p>
				
			<?php
		}
		
		
	}
}