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wordpress-azure/wp-includes/class-walker-page.php at master · cmdel/wordpress-azure · GitHub
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<?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
* @access public
* @var string
*
* @see Walker::$tree_type
*/
public
$
tree_type
=
'
page
'
;
/**
* Database fields to use.
*
* @since 2.1.0
* @access private
* @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
* @access public
*
* @see Walker::start_lvl()
*
* @param string $output Passed by reference. Used to append additional content.
* @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
(
'
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
* @access public
*
* @see Walker::end_lvl()
*
* @param string $output Passed by reference. Used to append additional content.
* @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
(
'
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
* @access public
*
* @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
(
'
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
'
];
$
output
.=
$
indent
.
sprintf
(
'
<li class="%s"><a href="%s">%s%s%s</a>
'
,
$
css_classes
,
get_permalink
(
$
page
->
ID
),
$
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
* @access public
*
* @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
(
'
preserve
'
===
$
args
[
'
item_spacing
'
] ) {
$
t
=
"\t"
;
$
n
=
"\n"
;
}
else
{
$
t
=
''
;
$
n
=
''
;
}
$
output
.=
"
</li>
{
$
n
}"
;
}
}
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