353 lines
12 KiB
PHP
353 lines
12 KiB
PHP
<?php
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/**
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* Server-side rendering of the `core/search` block.
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*
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* @package WordPress
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*/
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/**
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* Dynamically renders the `core/search` block.
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*
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* @param array $attributes The block attributes.
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*
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* @return string The search block markup.
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*/
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function render_block_core_search( $attributes ) {
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static $instance_id = 0;
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// Older versions of the Search block defaulted the label and buttonText
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// attributes to `__( 'Search' )` meaning that many posts contain `<!--
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// wp:search /-->`. Support these by defaulting an undefined label and
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// buttonText to `__( 'Search' )`.
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$attributes = wp_parse_args(
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$attributes,
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array(
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'label' => __( 'Search' ),
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'buttonText' => __( 'Search' ),
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)
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);
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$input_id = 'wp-block-search__input-' . ++$instance_id;
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$classnames = classnames_for_block_core_search( $attributes );
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$show_label = ( ! empty( $attributes['showLabel'] ) ) ? true : false;
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$use_icon_button = ( ! empty( $attributes['buttonUseIcon'] ) ) ? true : false;
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$show_input = ( ! empty( $attributes['buttonPosition'] ) && 'button-only' === $attributes['buttonPosition'] ) ? false : true;
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$show_button = ( ! empty( $attributes['buttonPosition'] ) && 'no-button' === $attributes['buttonPosition'] ) ? false : true;
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$label_markup = '';
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$input_markup = '';
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$button_markup = '';
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$inline_styles = styles_for_block_core_search( $attributes );
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$color_classes = get_color_classes_for_block_core_search( $attributes );
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$is_button_inside = ! empty( $attributes['buttonPosition'] ) &&
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'button-inside' === $attributes['buttonPosition'];
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// Border color classes need to be applied to the elements that have a border color.
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$border_color_classes = get_border_color_classes_for_block_core_search( $attributes );
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$label_markup = sprintf(
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'<label for="%1$s" class="wp-block-search__label screen-reader-text">%2$s</label>',
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$input_id,
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empty( $attributes['label'] ) ? __( 'Search' ) : $attributes['label']
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);
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if ( $show_label && ! empty( $attributes['label'] ) ) {
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$label_markup = sprintf(
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'<label for="%1$s" class="wp-block-search__label">%2$s</label>',
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$input_id,
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$attributes['label']
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);
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}
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if ( $show_input ) {
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$input_classes = ! $is_button_inside ? $border_color_classes : '';
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$input_markup = sprintf(
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'<input type="search" id="%s" class="wp-block-search__input %s" name="s" value="%s" placeholder="%s" %s required />',
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$input_id,
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$input_classes,
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esc_attr( get_search_query() ),
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esc_attr( $attributes['placeholder'] ),
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$inline_styles['input']
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);
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}
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if ( $show_button ) {
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$button_internal_markup = '';
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$button_classes = $color_classes;
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if ( ! $is_button_inside ) {
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$button_classes .= ' ' . $border_color_classes;
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}
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if ( ! $use_icon_button ) {
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if ( ! empty( $attributes['buttonText'] ) ) {
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$button_internal_markup = $attributes['buttonText'];
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}
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} else {
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$button_classes .= ' has-icon';
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$button_internal_markup =
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'<svg id="search-icon" class="search-icon" viewBox="0 0 24 24" width="24" height="24">
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<path d="M13.5 6C10.5 6 8 8.5 8 11.5c0 1.1.3 2.1.9 3l-3.4 3 1 1.1 3.4-2.9c1 .9 2.2 1.4 3.6 1.4 3 0 5.5-2.5 5.5-5.5C19 8.5 16.5 6 13.5 6zm0 9.5c-2.2 0-4-1.8-4-4s1.8-4 4-4 4 1.8 4 4-1.8 4-4 4z"></path>
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</svg>';
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}
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$button_markup = sprintf(
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'<button type="submit" class="wp-block-search__button %s" %s>%s</button>',
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$button_classes,
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$inline_styles['button'],
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$button_internal_markup
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);
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}
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$field_markup_classes = $is_button_inside ? $border_color_classes : '';
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$field_markup = sprintf(
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'<div class="wp-block-search__inside-wrapper %s" %s>%s</div>',
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$field_markup_classes,
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$inline_styles['wrapper'],
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$input_markup . $button_markup
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);
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$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classnames ) );
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return sprintf(
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'<form role="search" method="get" action="%s" %s>%s</form>',
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esc_url( home_url( '/' ) ),
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$wrapper_attributes,
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$label_markup . $field_markup
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);
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}
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/**
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* Registers the `core/search` block on the server.
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*/
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function register_block_core_search() {
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register_block_type_from_metadata(
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__DIR__ . '/search',
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array(
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'render_callback' => 'render_block_core_search',
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)
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);
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}
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add_action( 'init', 'register_block_core_search' );
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/**
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* Builds the correct top level classnames for the 'core/search' block.
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*
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* @param array $attributes The block attributes.
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*
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* @return string The classnames used in the block.
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*/
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function classnames_for_block_core_search( $attributes ) {
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$classnames = array();
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if ( ! empty( $attributes['buttonPosition'] ) ) {
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if ( 'button-inside' === $attributes['buttonPosition'] ) {
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$classnames[] = 'wp-block-search__button-inside';
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}
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if ( 'button-outside' === $attributes['buttonPosition'] ) {
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$classnames[] = 'wp-block-search__button-outside';
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}
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if ( 'no-button' === $attributes['buttonPosition'] ) {
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$classnames[] = 'wp-block-search__no-button';
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}
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if ( 'button-only' === $attributes['buttonPosition'] ) {
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$classnames[] = 'wp-block-search__button-only';
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}
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}
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if ( isset( $attributes['buttonUseIcon'] ) ) {
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if ( ! empty( $attributes['buttonPosition'] ) && 'no-button' !== $attributes['buttonPosition'] ) {
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if ( $attributes['buttonUseIcon'] ) {
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$classnames[] = 'wp-block-search__icon-button';
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} else {
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$classnames[] = 'wp-block-search__text-button';
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}
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}
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}
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return implode( ' ', $classnames );
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}
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/**
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* Builds an array of inline styles for the search block.
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*
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* The result will contain one entry for shared styles such as those for the
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* inner input or button and a second for the inner wrapper should the block
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* be positioning the button "inside".
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*
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* @param array $attributes The block attributes.
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*
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* @return array Style HTML attribute.
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*/
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function styles_for_block_core_search( $attributes ) {
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$wrapper_styles = array();
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$button_styles = array();
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$input_styles = array();
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// Add width styles.
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$has_width = ! empty( $attributes['width'] ) && ! empty( $attributes['widthUnit'] );
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$button_only = ! empty( $attributes['buttonPosition'] ) && 'button-only' === $attributes['buttonPosition'];
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if ( $has_width && ! $button_only ) {
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$wrapper_styles[] = sprintf(
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'width: %d%s;',
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esc_attr( $attributes['width'] ),
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esc_attr( $attributes['widthUnit'] )
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);
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}
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// Add border radius styles.
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$has_border_radius = ! empty( $attributes['style']['border']['radius'] );
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if ( $has_border_radius ) {
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$default_padding = '4px';
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$border_radius = $attributes['style']['border']['radius'];
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// Apply wrapper border radius if button placed inside.
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$is_button_inside = ! empty( $attributes['buttonPosition'] ) &&
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'button-inside' === $attributes['buttonPosition'];
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if ( is_array( $border_radius ) ) {
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// Apply styles for individual corner border radii.
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foreach ( $border_radius as $key => $value ) {
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if ( null !== $value ) {
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// Convert camelCase key to kebab-case.
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$name = strtolower( preg_replace( '/(?<!^)[A-Z]/', '-$0', $key ) );
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// Add shared styles for individual border radii for input & button.
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$border_style = sprintf(
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'border-%s-radius: %s;',
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esc_attr( $name ),
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esc_attr( $value )
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);
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$input_styles[] = $border_style;
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$button_styles[] = $border_style;
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// Add adjusted border radius styles for the wrapper element
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// if button is positioned inside.
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if ( $is_button_inside && intval( $value ) !== 0 ) {
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$wrapper_styles[] = sprintf(
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'border-%s-radius: calc(%s + %s);',
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esc_attr( $name ),
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esc_attr( $value ),
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$default_padding
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);
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}
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}
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}
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} else {
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// Numeric check is for backwards compatibility purposes.
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$border_radius = is_numeric( $border_radius ) ? $border_radius . 'px' : $border_radius;
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$border_style = sprintf( 'border-radius: %s;', esc_attr( $border_radius ) );
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$input_styles[] = $border_style;
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$button_styles[] = $border_style;
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if ( $is_button_inside && intval( $border_radius ) !== 0 ) {
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// Adjust wrapper border radii to maintain visual consistency
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// with inner elements when button is positioned inside.
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$wrapper_styles[] = sprintf(
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'border-radius: calc(%s + %s);',
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esc_attr( $border_radius ),
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$default_padding
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);
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}
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}
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}
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// Add border color styles.
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$has_border_color = ! empty( $attributes['style']['border']['color'] );
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if ( $has_border_color ) {
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$border_color = $attributes['style']['border']['color'];
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$is_button_inside = ! empty( $attributes['buttonPosition'] ) &&
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'button-inside' === $attributes['buttonPosition'];
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// Apply wrapper border color if button placed inside.
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if ( $is_button_inside ) {
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$wrapper_styles[] = sprintf( 'border-color: %s;', esc_attr( $border_color ) );
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} else {
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$button_styles[] = sprintf( 'border-color: %s;', esc_attr( $border_color ) );
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$input_styles[] = sprintf( 'border-color: %s;', esc_attr( $border_color ) );
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}
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}
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// Add color styles.
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$has_text_color = ! empty( $attributes['style']['color']['text'] );
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if ( $has_text_color ) {
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$button_styles[] = sprintf( 'color: %s;', esc_attr( $attributes['style']['color']['text'] ) );
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}
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$has_background_color = ! empty( $attributes['style']['color']['background'] );
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if ( $has_background_color ) {
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$button_styles[] = sprintf( 'background-color: %s;', esc_attr( $attributes['style']['color']['background'] ) );
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}
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$has_custom_gradient = ! empty( $attributes['style']['color']['gradient'] );
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if ( $has_custom_gradient ) {
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$button_styles[] = sprintf( 'background: %s;', $attributes['style']['color']['gradient'] );
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}
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return array(
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'input' => ! empty( $input_styles ) ? sprintf( ' style="%s"', implode( ' ', $input_styles ) ) : '',
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'button' => ! empty( $button_styles ) ? sprintf( ' style="%s"', implode( ' ', $button_styles ) ) : '',
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'wrapper' => ! empty( $wrapper_styles ) ? sprintf( ' style="%s"', implode( ' ', $wrapper_styles ) ) : '',
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);
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}
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/**
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* Returns border color classnames depending on whether there are named or custom border colors.
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*
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* @param array $attributes The block attributes.
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*
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* @return string The border color classnames to be applied to the block elements.
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*/
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function get_border_color_classes_for_block_core_search( $attributes ) {
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$has_custom_border_color = ! empty( $attributes['style']['border']['color'] );
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$border_color_classes = ! empty( $attributes['borderColor'] ) ? sprintf( 'has-border-color has-%s-border-color', $attributes['borderColor'] ) : '';
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// If there's a border color style and no `borderColor` text string, we still want to add the generic `has-border-color` class name to the element.
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if ( $has_custom_border_color && empty( $attributes['borderColor'] ) ) {
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$border_color_classes = 'has-border-color';
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}
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return $border_color_classes;
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}
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/**
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* Returns color classnames depending on whether there are named or custom text and background colors.
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*
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* @param array $attributes The block attributes.
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*
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* @return string The color classnames to be applied to the block elements.
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*/
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function get_color_classes_for_block_core_search( $attributes ) {
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$classnames = array();
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// Text color.
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$has_named_text_color = ! empty( $attributes['textColor'] );
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$has_custom_text_color = ! empty( $attributes['style']['color']['text'] );
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if ( $has_named_text_color ) {
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$classnames[] = sprintf( 'has-text-color has-%s-color', $attributes['textColor'] );
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} elseif ( $has_custom_text_color ) {
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// If a custom 'textColor' was selected instead of a preset, still add the generic `has-text-color` class.
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$classnames[] = 'has-text-color';
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}
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// Background color.
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$has_named_background_color = ! empty( $attributes['backgroundColor'] );
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$has_custom_background_color = ! empty( $attributes['style']['color']['background'] );
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$has_named_gradient = ! empty( $attributes['gradient'] );
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$has_custom_gradient = ! empty( $attributes['style']['color']['gradient'] );
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if (
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$has_named_background_color ||
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$has_custom_background_color ||
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$has_named_gradient ||
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$has_custom_gradient
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) {
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$classnames[] = 'has-background';
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}
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if ( $has_named_background_color ) {
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$classnames[] = sprintf( 'has-%s-background-color', $attributes['backgroundColor'] );
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}
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if ( $has_named_gradient ) {
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$classnames[] = sprintf( 'has-%s-gradient-background', $attributes['gradient'] );
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}
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return implode( ' ', $classnames );
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}
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