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127 lines
4.2 KiB
PHP
127 lines
4.2 KiB
PHP
<?php
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/** nav-menu-walker.php
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*
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* @author Konstantin Obenland
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* @package The Bootstrap
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* @since 1.5.0 - 15.05.2012
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*/
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class The_Bootstrap_Nav_Walker extends Walker_Nav_Menu {
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/**
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* @see Walker_Nav_Menu::start_lvl()
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*/
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function start_lvl( &$output, $depth ) {
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$output .= "\n<ul class=\"dropdown-menu\">\n";
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}
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/**
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* @see Walker_Nav_Menu::start_el()
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*/
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function start_el( &$output, $item, $depth, $args ) {
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global $wp_query;
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$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
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$li_attributes = $class_names = $value = '';
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$classes = empty( $item->classes ) ? array() : (array) $item->classes;
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$classes[] = 'menu-item-' . $item->ID;
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if ( $args->has_children ) {
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$classes[] = ( 1 > $depth) ? 'dropdown': 'dropdown-submenu';
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$li_attributes .= ' data-dropdown="dropdown"';
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}
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$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
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$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
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$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );
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$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
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$output .= $indent . '<li' . $id . $value . $class_names . $li_attributes . '>';
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$attributes = $item->attr_title ? ' title="' . esc_attr( $item->attr_title ) .'"' : '';
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$attributes .= $item->target ? ' target="' . esc_attr( $item->target ) .'"' : '';
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$attributes .= $item->xfn ? ' rel="' . esc_attr( $item->xfn ) .'"' : '';
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$attributes .= $item->url ? ' href="' . esc_attr( $item->url ) .'"' : '';
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$attributes .= $args->has_children ? ' class="dropdown-toggle" data-toggle="dropdown"' : '';
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$item_output = $args->before . '<a' . $attributes . '>';
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$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
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$item_output .= ( $args->has_children AND 1 > $depth ) ? ' <b class="caret"></b>' : '';
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$item_output .= '</a>' . $args->after;
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$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
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}
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/**
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* @see Walker::display_element()
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*/
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function display_element( $element, &$children_elements, $max_depth, $depth = 0, $args, &$output ) {
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if ( ! $element )
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return;
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$id_field = $this->db_fields['id'];
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//display this element
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if ( is_array( $args[0] ) )
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$args[0]['has_children'] = (bool) ( ! empty( $children_elements[$element->$id_field] ) AND $depth != $max_depth - 1 );
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elseif ( is_object( $args[0] ) )
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$args[0]->has_children = (bool) ( ! empty( $children_elements[$element->$id_field] ) AND $depth != $max_depth - 1 );
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$cb_args = array_merge( array( &$output, $element, $depth ), $args );
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call_user_func_array( array( &$this, 'start_el' ), $cb_args );
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$id = $element->$id_field;
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// descend only when the depth is right and there are childrens for this element
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if ( ( $max_depth == 0 OR $max_depth > $depth+1 ) AND isset( $children_elements[$id] ) ) {
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foreach ( $children_elements[ $id ] as $child ) {
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if ( ! isset( $newlevel ) ) {
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$newlevel = true;
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//start the child delimiter
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$cb_args = array_merge( array( &$output, $depth ), $args );
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call_user_func_array( array( &$this, 'start_lvl' ), $cb_args );
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}
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$this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output );
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}
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unset( $children_elements[ $id ] );
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}
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if ( isset( $newlevel ) AND $newlevel ) {
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//end the child delimiter
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$cb_args = array_merge( array( &$output, $depth ), $args );
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call_user_func_array( array( &$this, 'end_lvl' ), $cb_args );
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}
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//end this element
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$cb_args = array_merge( array( &$output, $element, $depth ), $args );
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call_user_func_array( array( &$this, 'end_el' ), $cb_args );
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}
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}
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/**
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* Adds the active CSS class
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*
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* @author Konstantin Obenland
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* @since 1.5.0 - 15.05.2012
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*
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* @param array $classes Default class names
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*
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* @return array
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*/
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function the_bootstrap_nav_menu_css_class( $classes ) {
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if ( in_array('current-menu-item', $classes ) OR in_array( 'current-menu-ancestor', $classes ) )
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$classes[] = 'active';
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return $classes;
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}
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add_filter( 'nav_menu_css_class', 'the_bootstrap_nav_menu_css_class' );
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/* End of file nav-menu-walker.php */
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/* Location: ./wp-content/themes/the-bootstrap/inc/nav-menu-walker.php */ |