<?php
/**
* Server-side rendering of the `core/search` block.
*
* @package WordPress
*/
/**
* Dynamically renders the `core/search` block.
*
* @param array $attributes The block attributes.
*
* @return string The search block markup.
*/
function render_block_core_search( $attributes ) {
static $instance_id = 0;
// Older versions of the Search block defaulted the label and buttonText
// attributes to `__( 'Search' )` meaning that many posts contain `<!--
// wp:search /-->`. Support these by defaulting an undefined label and
// buttonText to `__( 'Search' )`.
$attributes = wp_parse_args(
$attributes,
array(
'label' => __( 'Search' ),
'buttonText' => __( 'Search' ),
)
);
$input_id = 'wp-block-search__input-' . ++$instance_id;
$classnames = classnames_for_block_core_search( $attributes );
$show_label = ( ! empty( $attributes['showLabel'] ) ) ? true : false;
$use_icon_button = ( ! empty( $attributes['buttonUseIcon'] ) ) ? true : false;
$show_input = ( ! empty( $attributes['buttonPosition'] ) && 'button-only' === $attributes['buttonPosition'] ) ? false : true;
$show_button = ( ! empty( $attributes['buttonPosition'] ) && 'no-button' === $attributes['buttonPosition'] ) ? false : true;
$label_markup = '';
$input_markup = '';
$button_markup = '';
$width_styles = '';
if ( $show_label ) {
if ( ! empty( $attributes['label'] ) ) {
$label_markup = sprintf(
'<label for="%s" class="wp-block-search__label">%s</label>',
$input_id,
$attributes['label']
);
} else {
$label_markup = sprintf(
'<label for="%s" class="wp-block-search__label screen-reader-text">%s</label>',
$input_id,
__( 'Search' )
);
}
}
if ( $show_input ) {
$input_markup = sprintf(
'<input type="search" id="%s" class="wp-block-search__input" name="s" value="%s" placeholder="%s" required />',
$input_id,
esc_attr( get_search_query() ),
esc_attr( $attributes['placeholder'] )
);
}
if ( $show_button ) {
$button_internal_markup = '';
$button_classes = '';
if ( ! $use_icon_button ) {
if ( ! empty( $attributes['buttonText'] ) ) {
$button_internal_markup = $attributes['buttonText'];
}
} else {
$button_classes .= 'has-icon';
$button_internal_markup =
'<svg id="search-icon" class="search-icon" viewBox="0 0 24 24" width="24" height="24">
<path d="M13.5 6C10.5 6 8 8.5 8 11.5c0 1.1.3 2.1.9 3l-3.4 3 1 1.1 3.4-2.9c1 .9 2.2 1.4 3.6 1.4 3 0 5.5-2.5 5.5-5.5C19 8.5 16.5 6 13.5 6zm0 9.5c-2.2 0-4-1.8-4-4s1.8-4 4-4 4 1.8 4 4-1.8 4-4 4z"></path>
</svg>';
}
$button_markup = sprintf(
'<button type="submit"class="wp-block-search__button ' . $button_classes . '">%s</button>',
$button_internal_markup
);
}
if ( ! empty( $attributes['width'] ) && ! empty( $attributes['widthUnit'] ) ) {
if ( ! empty( $attributes['buttonPosition'] ) && 'button-only' !== $attributes['buttonPosition'] ) {
$width_styles = ' style="width: ' . $attributes['width'] . $attributes['widthUnit'] . ';"';
}
}
$field_markup = sprintf(
'<div class="wp-block-search__inside-wrapper"%s>%s</div>',
$width_styles,
$input_markup . $button_markup
);
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classnames ) );
return sprintf(
'<form role="search" method="get" action="%s" %s>%s</form>',
esc_url( home_url( '/' ) ),
$wrapper_attributes,
$label_markup . $field_markup
);
}
/**
* Registers the `core/search` block on the server.
*/
function register_block_core_search() {
register_block_type_from_metadata(
__DIR__ . '/search',
array(
'render_callback' => 'render_block_core_search',
)
);
}
add_action( 'init', 'register_block_core_search' );
/**
* Builds the correct top level classnames for the 'core/search' block.
*
* @param array $attributes The block attributes.
*
* @return string The classnames used in the block.
*/
function classnames_for_block_core_search( $attributes ) {
$classnames = array();
if ( ! empty( $attributes['buttonPosition'] ) ) {
if ( 'button-inside' === $attributes['buttonPosition'] ) {
$classnames[] = 'wp-block-search__button-inside';
}
if ( 'button-outside' === $attributes['buttonPosition'] ) {
$classnames[] = 'wp-block-search__button-outside';
}
if ( 'no-button' === $attributes['buttonPosition'] ) {
$classnames[] = 'wp-block-search__no-button';
}
if ( 'button-only' === $attributes['buttonPosition'] ) {
$classnames[] = 'wp-block-search__button-only';
}
}
if ( isset( $attributes['buttonUseIcon'] ) ) {
if ( ! empty( $attributes['buttonPosition'] ) && 'no-button' !== $attributes['buttonPosition'] ) {
if ( $attributes['buttonUseIcon'] ) {
$classnames[] = 'wp-block-search__icon-button';
} else {
$classnames[] = 'wp-block-search__text-button';
}
}
}
return implode( ' ', $classnames );
}