211 lines
9.2 KiB
PHP
211 lines
9.2 KiB
PHP
<?php
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/**
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* Displays a navigation menu.
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*
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* Optional $args contents:
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*
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* id - The menu id. Defaults to blank.
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* slug - The menu slug. Defaults to blank.
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* menu_class - CSS class to use for the div container of the menu list. Defaults to 'menu'.
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* format - Whether to format the ul. Defaults to 'div'.
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* fallback_cb - If the menu doesn't exists, a callback function will fire. Defaults to 'wp_page_menu'.
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* before_link - Output text before the link.
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* after_link - Output text after the link.
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* before_title - Output text before the link text.
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* before_title - Output text after the link text.
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* echo - Whether to echo the menu or return it. Defaults to echo.
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*
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* TODO:
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* show_home - If you set this argument, then it will display the link to the home page. The show_home argument really just needs to be set to the value of the text of the link.
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*
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* @since 3.0.0
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*
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* @param array $args Arguments
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*/
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function wp_nav_menu( $args = array() ) {
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$defaults = array( 'menu' => '', 'menu_class' => 'menu', 'format' => 'div', 'echo' => true,
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'fallback_cb' => 'wp_page_menu', 'link_before' => '', 'link_after' => '', 'before_link' => '', 'after_link' => '', );
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$args = wp_parse_args( $args, $defaults );
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$args = apply_filters( 'wp_nav_menu_args', $args );
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$args = (object) $args;
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// Get the nav menu
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$menu = wp_get_nav_menu_object( $args->menu );
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// If we couldn't find a menu based off the name, id or slug,
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// get the first menu that has items.
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if ( !$menu ) {
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$menus = wp_get_nav_menus();
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foreach ( $menus as $menu_maybe ) {
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if ( wp_get_nav_menu_items($menu_maybe->term_id) ) {
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$menu = $menu_maybe;
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break;
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}
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}
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}
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if ( $menu )
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$args->menu = $menu->term_id;
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$nav_menu = '';
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if ( 'div' == $args->format ) {
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if ( $menu )
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$nav_menu .= '<div id="menu-' . $menu->slug . '" class="' . esc_attr($args->menu_class) . '">';
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else
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$nav_menu .= '<div id="menu-default">';
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}
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$nav_menu .= wp_get_nav_menu( $args );
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if ( 'div' == $args->format )
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$nav_menu .= '</div>';
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$nav_menu = apply_filters( 'wp_nav_menu', $nav_menu );
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if ( $args->echo )
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echo $nav_menu;
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else
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return $nav_menu;
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}
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/**
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* Returns a Navigation Menu.
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*
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* See wp_nav_menu() for args.
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*
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* @since 3.0.0
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*
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* @param array $args Arguments
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* @return mixed $output False if menu doesn't exists, else, returns the menu.
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**/
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function wp_get_nav_menu( $args = array() ) {
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$defaults = array( 'menu' => '', 'menu_class' => 'menu', 'ul_class' => '', 'format' => 'div', 'type' => 'frontend',
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'fallback_cb' => '', 'link_before' => '', 'link_after' => '', 'before_link' => '', 'after_link' => '', );
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$args = wp_parse_args( $args, $defaults );
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$args = apply_filters( 'wp_get_nav_menu_args', $args );
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$args = (object) $args;
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$menu = wp_get_nav_menu_object( $args->menu );
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// If no menu was found, call the fallback_cb
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if ( !$menu || is_wp_error($menu) ) {
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if ( function_exists($args->fallback_cb) ) {
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$_args = array_merge( (array)$args, array('echo' => false) );
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return call_user_func( $args->fallback_cb, $_args );
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}
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}
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$menu_items = wp_get_nav_menu_items( $menu->term_id );
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$nav_menu = '';
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$parent_stack = array();
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$current_parent = 0;
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$parent_menu_order = array();
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// Setup parentage
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foreach ( $menu_items as $menu_item )
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$parent_menu_order[ $menu_item->ID ] = $menu_item->menu_order;
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$ul_class = isset($args->ul_class) ? ' class="'. $args->ul_class .'"' : '';
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$nav_menu .= '<ul'. $ul_class .'>';
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// Display Loop
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foreach ( $menu_items as $key => $menu_item ) :
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// Setup the $menu_item variables
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$menu_item = wp_setup_nav_menu_item( $menu_item );
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$maybe_value = 'frontend' == $args->type ? '' : ' value="'. $menu_item->ID .'"';
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$classes = 'frontend' == $args->type ? 'class="menu-item-'. $menu_item->type . $menu_item->li_class .'"' : '';
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$nav_menu .= '<li id="menu-item-'. $menu_item->ID .'"'. $maybe_value . $classes .'>';
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$nav_menu .= wp_get_nav_menu_item( $menu_item, $args->type, $args );
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// Indent children
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$last_item = ( count( $menu_items ) == $menu_item->menu_order );
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if ( $last_item || $current_parent != $menu_items[ $key + 1 ]->post_parent ) {
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if ( $last_item || in_array( $menu_items[ $key + 1 ]->post_parent, $parent_stack ) ) {
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$nav_menu .= '</li>';
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while ( !empty( $parent_stack ) && ($last_item || $menu_items[ $key + 1 ]->post_parent != $current_parent ) ) {
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$nav_menu .= '</ul></li>';
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$current_parent = array_pop( $parent_stack );
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}
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} else {
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array_push( $parent_stack, $current_parent );
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$current_parent = $menu_item->ID;
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$nav_menu .= '<ul>';
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}
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} else {
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$nav_menu .= '</li>';
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}
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endforeach;
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$nav_menu .= '</ul>';
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return apply_filters( 'wp_get_nav_menu', $nav_menu );
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}
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/**
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* Returns a menu item.
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*
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* @since 3.0.0
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*
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* @param object $menu_item The menu item
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* @param string $context frontend|backend|default
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* @param array $args See wp_get_nav_menu().
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**/
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function wp_get_nav_menu_item( $menu_item, $context, $args = array() ) {
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$item = '';
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switch ( $context ) {
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case 'frontend':
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$attr_title = ( isset($menu_item->anchor_title) && '' != $menu_item->anchor_title ) ? ' title="'. esc_attr($menu_item->anchor_title) .'"' : '';
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$href = isset($menu_item->link) ? ' href="'. esc_url($menu_item->link) .'"' : '';
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$item .= '<a'. $attr_title . $href . $menu_item->target .'>';
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$item .= $args->before_link . esc_html( $menu_item->title ) . $args->after_link;
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$item .= '</a>';
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break;
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case 'backend':
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$item .= '<dl><dt>';
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$item .= '<span class="item-title">'. esc_html($menu_item->title) .'</span>';
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$item .= '<span class="item-controls">';
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$item .= '<span class="item-type">'. esc_html($menu_item->type) .'</span>';
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// Actions
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$item .= '<a class="item-edit thickbox" id="edit'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->menu_order ) .'" title="'. __('Edit Menu Item') .'" href="#TB_inline?height=380&width=300&inlineId=menu-item-settings">'. __('Edit') .'</a> | ';
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$item .= '<a class="item-delete" id="delete'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->menu_order ) .'">'. __('Delete') .'</a>';
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$item .= '</dt></dl>';
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// Menu Item Settings
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$item .= '<input type="hidden" id="item-dbid'. esc_attr( $menu_item->menu_order ) .'" name="item-dbid'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->ID ) .'" />';
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$item .= '<input type="hidden" id="item-postmenu'. esc_attr( $menu_item->menu_order ) .'" name="item-postmenu'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( get_post_meta( $menu_item->ID, 'object_id', true ) ) .'" />';
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$item .= '<input type="hidden" id="item-parent'. esc_attr( $menu_item->menu_order ) .'" name="item-parent'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->parent_item ) .'" />';
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$item .= '<input type="hidden" id="item-position'. esc_attr( $menu_item->menu_order ) .'" name="item-position'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->menu_order ) .'" />';
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$item .= '<input type="hidden" id="item-type'. esc_attr( $menu_item->menu_order ) .'" name="item-type'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( get_post_meta( $menu_item->ID, 'menu_type', true ) ) .'" />';
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$item .= '<input type="hidden" id="item-title'. esc_attr( $menu_item->menu_order ) .'" name="item-title'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->title ) .'" />';
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$item .= '<input type="hidden" id="item-url'. esc_attr( $menu_item->menu_order ) .'" name="item-url'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->link ) .'" />';
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$item .= '<input type="hidden" id="item-description'. esc_attr( $menu_item->menu_order ) .'" name="item-description'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( $menu_item->description ) .'" />';
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$item .= '<input type="hidden" id="item-attr-title'. esc_attr( $menu_item->menu_order ) .'" name="item-attr-title'. esc_attr( $menu_item->menu_order ) .'" value="'.esc_attr( $menu_item->post_excerpt ) .'" />';
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$item .= '<input type="hidden" id="item-target'. esc_attr( $menu_item->menu_order ) .'" name="item-target'. esc_attr( $menu_item->menu_order ) .'" value="'. esc_attr( get_post_meta( $menu_item->ID, 'menu_new_window', true ) ? '1' : '0' ) .'" />';
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break;
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case 'default':
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$menu_id = 'menu-item-' . $menu_item->ID;
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$item .= '<label class="item-title"><input type="checkbox" id="'. esc_attr($menu_id) .'" name="'. esc_attr( $menu_item->title ) .'" value="'. esc_attr( $menu_item->link ) .'" />'. $menu_item->title .'</label>';
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// Menu Item Settings
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$item .= '<input type="hidden" class="item-type" value="'. esc_attr( $menu_item->append ) .'" />';
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$item .= '<input type="hidden" class="item-title" value="'. esc_attr( $menu_item->title ) .'" />';
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$item .= '<input type="hidden" class="item-url" value="'. esc_attr( $menu_item->link ) .'" />';
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$item .= '<input type="hidden" class="item-dbid" value="'. esc_attr( $menu_item->ID ) .'" />';
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$item .= '<input type="hidden" class="item-parent" value="'. esc_attr( $menu_item->parent_item ) .'" />';
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$item .= '<input type="hidden" class="item-description" value="'. esc_attr( $menu_item->description ) .'" />';
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break;
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}
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return apply_filters( 'wp_get_nav_menu_item', $item );
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}
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?>
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