232 lines
6.6 KiB
PHP
232 lines
6.6 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* Post API: Walker_Page class
|
||
|
|
*
|
||
|
|
* @package WordPress
|
||
|
|
* @subpackage Template
|
||
|
|
* @since 4.4.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Core walker class used to create an HTML list of pages.
|
||
|
|
*
|
||
|
|
* @since 2.1.0
|
||
|
|
*
|
||
|
|
* @see Walker
|
||
|
|
*/
|
||
|
|
class Walker_Page extends Walker {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* What the class handles.
|
||
|
|
*
|
||
|
|
* @since 2.1.0
|
||
|
|
* @var string
|
||
|
|
*
|
||
|
|
* @see Walker::$tree_type
|
||
|
|
*/
|
||
|
|
public $tree_type = 'page';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Database fields to use.
|
||
|
|
*
|
||
|
|
* @since 2.1.0
|
||
|
|
* @var array
|
||
|
|
*
|
||
|
|
* @see Walker::$db_fields
|
||
|
|
* @todo Decouple this.
|
||
|
|
*/
|
||
|
|
public $db_fields = array( 'parent' => 'post_parent', 'id' => 'ID' );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Outputs the beginning of the current level in the tree before elements are output.
|
||
|
|
*
|
||
|
|
* @since 2.1.0
|
||
|
|
*
|
||
|
|
* @see Walker::start_lvl()
|
||
|
|
*
|
||
|
|
* @param string $output Used to append additional content (passed by reference).
|
||
|
|
* @param int $depth Optional. Depth of page. Used for padding. Default 0.
|
||
|
|
* @param array $args Optional. Arguments for outputting the next level.
|
||
|
|
* Default empty array.
|
||
|
|
*/
|
||
|
|
public function start_lvl( &$output, $depth = 0, $args = array() ) {
|
||
|
|
if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
|
||
|
|
$t = "\t";
|
||
|
|
$n = "\n";
|
||
|
|
} else {
|
||
|
|
$t = '';
|
||
|
|
$n = '';
|
||
|
|
}
|
||
|
|
$indent = str_repeat( $t, $depth );
|
||
|
|
$output .= "{$n}{$indent}<ul class='children'>{$n}";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Outputs the end of the current level in the tree after elements are output.
|
||
|
|
*
|
||
|
|
* @since 2.1.0
|
||
|
|
*
|
||
|
|
* @see Walker::end_lvl()
|
||
|
|
*
|
||
|
|
* @param string $output Used to append additional content (passed by reference).
|
||
|
|
* @param int $depth Optional. Depth of page. Used for padding. Default 0.
|
||
|
|
* @param array $args Optional. Arguments for outputting the end of the current level.
|
||
|
|
* Default empty array.
|
||
|
|
*/
|
||
|
|
public function end_lvl( &$output, $depth = 0, $args = array() ) {
|
||
|
|
if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
|
||
|
|
$t = "\t";
|
||
|
|
$n = "\n";
|
||
|
|
} else {
|
||
|
|
$t = '';
|
||
|
|
$n = '';
|
||
|
|
}
|
||
|
|
$indent = str_repeat( $t, $depth );
|
||
|
|
$output .= "{$indent}</ul>{$n}";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Outputs the beginning of the current element in the tree.
|
||
|
|
*
|
||
|
|
* @see Walker::start_el()
|
||
|
|
* @since 2.1.0
|
||
|
|
*
|
||
|
|
* @param string $output Used to append additional content. Passed by reference.
|
||
|
|
* @param WP_Post $page Page data object.
|
||
|
|
* @param int $depth Optional. Depth of page. Used for padding. Default 0.
|
||
|
|
* @param array $args Optional. Array of arguments. Default empty array.
|
||
|
|
* @param int $current_page Optional. Page ID. Default 0.
|
||
|
|
*/
|
||
|
|
public function start_el( &$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {
|
||
|
|
if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
|
||
|
|
$t = "\t";
|
||
|
|
$n = "\n";
|
||
|
|
} else {
|
||
|
|
$t = '';
|
||
|
|
$n = '';
|
||
|
|
}
|
||
|
|
if ( $depth ) {
|
||
|
|
$indent = str_repeat( $t, $depth );
|
||
|
|
} else {
|
||
|
|
$indent = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$css_class = array( 'page_item', 'page-item-' . $page->ID );
|
||
|
|
|
||
|
|
if ( isset( $args['pages_with_children'][ $page->ID ] ) ) {
|
||
|
|
$css_class[] = 'page_item_has_children';
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! empty( $current_page ) ) {
|
||
|
|
$_current_page = get_post( $current_page );
|
||
|
|
if ( $_current_page && in_array( $page->ID, $_current_page->ancestors ) ) {
|
||
|
|
$css_class[] = 'current_page_ancestor';
|
||
|
|
}
|
||
|
|
if ( $page->ID == $current_page ) {
|
||
|
|
$css_class[] = 'current_page_item';
|
||
|
|
} elseif ( $_current_page && $page->ID == $_current_page->post_parent ) {
|
||
|
|
$css_class[] = 'current_page_parent';
|
||
|
|
}
|
||
|
|
} elseif ( $page->ID == get_option('page_for_posts') ) {
|
||
|
|
$css_class[] = 'current_page_parent';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Filters the list of CSS classes to include with each page item in the list.
|
||
|
|
*
|
||
|
|
* @since 2.8.0
|
||
|
|
*
|
||
|
|
* @see wp_list_pages()
|
||
|
|
*
|
||
|
|
* @param array $css_class An array of CSS classes to be applied
|
||
|
|
* to each list item.
|
||
|
|
* @param WP_Post $page Page data object.
|
||
|
|
* @param int $depth Depth of page, used for padding.
|
||
|
|
* @param array $args An array of arguments.
|
||
|
|
* @param int $current_page ID of the current page.
|
||
|
|
*/
|
||
|
|
$css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );
|
||
|
|
|
||
|
|
if ( '' === $page->post_title ) {
|
||
|
|
/* translators: %d: ID of a post */
|
||
|
|
$page->post_title = sprintf( __( '#%d (no title)' ), $page->ID );
|
||
|
|
}
|
||
|
|
|
||
|
|
$args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
|
||
|
|
$args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
|
||
|
|
|
||
|
|
$atts = array();
|
||
|
|
$atts['href'] = get_permalink( $page->ID );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Filters the HTML attributes applied to a page menu item's anchor element.
|
||
|
|
*
|
||
|
|
* @since 4.8.0
|
||
|
|
*
|
||
|
|
* @param array $atts {
|
||
|
|
* The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
|
||
|
|
*
|
||
|
|
* @type string $href The href attribute.
|
||
|
|
* }
|
||
|
|
* @param WP_Post $page Page data object.
|
||
|
|
* @param int $depth Depth of page, used for padding.
|
||
|
|
* @param array $args An array of arguments.
|
||
|
|
* @param int $current_page ID of the current page.
|
||
|
|
*/
|
||
|
|
$atts = apply_filters( 'page_menu_link_attributes', $atts, $page, $depth, $args, $current_page );
|
||
|
|
|
||
|
|
$attributes = '';
|
||
|
|
foreach ( $atts as $attr => $value ) {
|
||
|
|
if ( ! empty( $value ) ) {
|
||
|
|
$value = esc_attr( $value );
|
||
|
|
$attributes .= ' ' . $attr . '="' . $value . '"';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$output .= $indent . sprintf(
|
||
|
|
'<li class="%s"><a%s>%s%s%s</a>',
|
||
|
|
$css_classes,
|
||
|
|
$attributes,
|
||
|
|
$args['link_before'],
|
||
|
|
/** This filter is documented in wp-includes/post-template.php */
|
||
|
|
apply_filters( 'the_title', $page->post_title, $page->ID ),
|
||
|
|
$args['link_after']
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( ! empty( $args['show_date'] ) ) {
|
||
|
|
if ( 'modified' == $args['show_date'] ) {
|
||
|
|
$time = $page->post_modified;
|
||
|
|
} else {
|
||
|
|
$time = $page->post_date;
|
||
|
|
}
|
||
|
|
|
||
|
|
$date_format = empty( $args['date_format'] ) ? '' : $args['date_format'];
|
||
|
|
$output .= " " . mysql2date( $date_format, $time );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Outputs the end of the current element in the tree.
|
||
|
|
*
|
||
|
|
* @since 2.1.0
|
||
|
|
*
|
||
|
|
* @see Walker::end_el()
|
||
|
|
*
|
||
|
|
* @param string $output Used to append additional content. Passed by reference.
|
||
|
|
* @param WP_Post $page Page data object. Not used.
|
||
|
|
* @param int $depth Optional. Depth of page. Default 0 (unused).
|
||
|
|
* @param array $args Optional. Array of arguments. Default empty array.
|
||
|
|
*/
|
||
|
|
public function end_el( &$output, $page, $depth = 0, $args = array() ) {
|
||
|
|
if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
|
||
|
|
$t = "\t";
|
||
|
|
$n = "\n";
|
||
|
|
} else {
|
||
|
|
$t = '';
|
||
|
|
$n = '';
|
||
|
|
}
|
||
|
|
$output .= "</li>{$n}";
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|