`. 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 = '';
$inline_styles = styles_for_block_core_search( $attributes );
if ( $show_label ) {
if ( ! empty( $attributes['label'] ) ) {
$label_markup = sprintf(
'',
$input_id,
$attributes['label']
);
} else {
$label_markup = sprintf(
'',
$input_id,
__( 'Search' )
);
}
}
if ( $show_input ) {
$input_markup = sprintf(
'',
$input_id,
esc_attr( get_search_query() ),
esc_attr( $attributes['placeholder'] ),
$inline_styles['shared']
);
}
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 =
'';
}
$button_markup = sprintf(
'',
$button_classes,
$inline_styles['shared'],
$button_internal_markup
);
}
$field_markup = sprintf(
'%s
',
$inline_styles['wrapper'],
$input_markup . $button_markup
);
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classnames ) );
return sprintf(
'',
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 );
}
/**
* Builds an array of inline styles for the search block.
*
* The result will contain one entry for shared styles such as those for the
* inner input or button and a second for the inner wrapper should the block
* be positioning the button "inside".
*
* @param array $attributes The block attributes.
*
* @return array Style HTML attribute.
*/
function styles_for_block_core_search( $attributes ) {
$shared_styles = array();
$wrapper_styles = array();
// Add width styles.
$has_width = ! empty( $attributes['width'] ) && ! empty( $attributes['widthUnit'] );
$button_only = ! empty( $attributes['buttonPosition'] ) && 'button-only' === $attributes['buttonPosition'];
if ( $has_width && ! $button_only ) {
$wrapper_styles[] = sprintf(
'width: %d%s;',
esc_attr( $attributes['width'] ),
esc_attr( $attributes['widthUnit'] )
);
}
// Add border radius styles.
$has_border_radius = ! empty( $attributes['style']['border']['radius'] );
if ( $has_border_radius ) {
// Shared style for button and input radius values.
$border_radius = $attributes['style']['border']['radius'];
$shared_styles[] = sprintf( 'border-radius: %spx;', esc_attr( $border_radius ) );
// Apply wrapper border radius if button placed inside.
$button_inside = ! empty( $attributes['buttonPosition'] ) &&
'button-inside' === $attributes['buttonPosition'];
if ( $button_inside ) {
// We adjust the border radius value for the outer wrapper element
// to make it visually consistent with the radius applied to inner
// elements.
$default_padding = 4;
$adjusted_radius = $border_radius + $default_padding;
$wrapper_styles[] = sprintf( 'border-radius: %dpx;', esc_attr( $adjusted_radius ) );
}
}
return array(
'shared' => ! empty( $shared_styles ) ? sprintf( ' style="%s"', implode( ' ', $shared_styles ) ) : '',
'wrapper' => ! empty( $wrapper_styles ) ? sprintf( ' style="%s"', implode( ' ', $wrapper_styles ) ) : '',
);
}