|
9
|
1 |
<?php |
|
|
2 |
/** |
|
|
3 |
* Server-side rendering of the `core/categories` block. |
|
|
4 |
* |
|
|
5 |
* @package WordPress |
|
|
6 |
*/ |
|
|
7 |
|
|
|
8 |
/** |
|
|
9 |
* Renders the `core/categories` block on server. |
|
|
10 |
* |
|
|
11 |
* @param array $attributes The block attributes. |
|
|
12 |
* |
|
|
13 |
* @return string Returns the categories list/dropdown markup. |
|
|
14 |
*/ |
|
|
15 |
function render_block_core_categories( $attributes ) { |
|
|
16 |
static $block_id = 0; |
|
|
17 |
$block_id++; |
|
|
18 |
|
|
|
19 |
$args = array( |
|
|
20 |
'echo' => false, |
|
|
21 |
'hierarchical' => ! empty( $attributes['showHierarchy'] ), |
|
|
22 |
'orderby' => 'name', |
|
|
23 |
'show_count' => ! empty( $attributes['showPostCounts'] ), |
|
|
24 |
'title_li' => '', |
|
|
25 |
); |
|
|
26 |
|
|
|
27 |
if ( ! empty( $attributes['displayAsDropdown'] ) ) { |
|
|
28 |
$id = 'wp-block-categories-' . $block_id; |
|
|
29 |
$args['id'] = $id; |
|
|
30 |
$args['show_option_none'] = __( 'Select Category' ); |
|
18
|
31 |
$wrapper_markup = '<div %1$s><label class="screen-reader-text" for="' . $id . '">' . __( 'Categories' ) . '</label>%2$s</div>'; |
|
9
|
32 |
$items_markup = wp_dropdown_categories( $args ); |
|
|
33 |
$type = 'dropdown'; |
|
|
34 |
|
|
|
35 |
if ( ! is_admin() ) { |
|
18
|
36 |
// Inject the dropdown script immediately after the select dropdown. |
|
|
37 |
$items_markup = preg_replace( |
|
|
38 |
'#(?<=</select>)#', |
|
|
39 |
build_dropdown_script_block_core_categories( $id ), |
|
|
40 |
$items_markup, |
|
|
41 |
1 |
|
|
42 |
); |
|
9
|
43 |
} |
|
|
44 |
} else { |
|
18
|
45 |
$wrapper_markup = '<ul %1$s>%2$s</ul>'; |
|
9
|
46 |
$items_markup = wp_list_categories( $args ); |
|
|
47 |
$type = 'list'; |
|
|
48 |
} |
|
|
49 |
|
|
18
|
50 |
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => "wp-block-categories-{$type}" ) ); |
|
9
|
51 |
|
|
16
|
52 |
return sprintf( |
|
9
|
53 |
$wrapper_markup, |
|
18
|
54 |
$wrapper_attributes, |
|
9
|
55 |
$items_markup |
|
|
56 |
); |
|
|
57 |
} |
|
|
58 |
|
|
|
59 |
/** |
|
|
60 |
* Generates the inline script for a categories dropdown field. |
|
|
61 |
* |
|
|
62 |
* @param string $dropdown_id ID of the dropdown field. |
|
|
63 |
* |
|
|
64 |
* @return string Returns the dropdown onChange redirection script. |
|
|
65 |
*/ |
|
|
66 |
function build_dropdown_script_block_core_categories( $dropdown_id ) { |
|
|
67 |
ob_start(); |
|
|
68 |
?> |
|
|
69 |
<script type='text/javascript'> |
|
|
70 |
/* <![CDATA[ */ |
|
|
71 |
( function() { |
|
|
72 |
var dropdown = document.getElementById( '<?php echo esc_js( $dropdown_id ); ?>' ); |
|
|
73 |
function onCatChange() { |
|
|
74 |
if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) { |
|
|
75 |
location.href = "<?php echo home_url(); ?>/?cat=" + dropdown.options[ dropdown.selectedIndex ].value; |
|
|
76 |
} |
|
|
77 |
} |
|
|
78 |
dropdown.onchange = onCatChange; |
|
|
79 |
})(); |
|
|
80 |
/* ]]> */ |
|
|
81 |
</script> |
|
|
82 |
<?php |
|
|
83 |
return ob_get_clean(); |
|
|
84 |
} |
|
|
85 |
|
|
|
86 |
/** |
|
|
87 |
* Registers the `core/categories` block on server. |
|
|
88 |
*/ |
|
|
89 |
function register_block_core_categories() { |
|
16
|
90 |
register_block_type_from_metadata( |
|
|
91 |
__DIR__ . '/categories', |
|
9
|
92 |
array( |
|
|
93 |
'render_callback' => 'render_block_core_categories', |
|
|
94 |
) |
|
|
95 |
); |
|
|
96 |
} |
|
|
97 |
add_action( 'init', 'register_block_core_categories' ); |