214 lines
6.6 KiB
PHP
214 lines
6.6 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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if ( $show_label ) {
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if ( ! empty( $attributes['label'] ) ) {
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$label_markup = sprintf(
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'<label for="%s" class="wp-block-search__label">%s</label>',
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$input_id,
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$attributes['label']
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);
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} else {
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$label_markup = sprintf(
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'<label for="%s" class="wp-block-search__label screen-reader-text">%s</label>',
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$input_id,
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__( 'Search' )
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);
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}
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}
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if ( $show_input ) {
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$input_markup = sprintf(
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'<input type="search" id="%s" class="wp-block-search__input" name="s" value="%s" placeholder="%s" %s required />',
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$input_id,
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esc_attr( get_search_query() ),
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esc_attr( $attributes['placeholder'] ),
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$inline_styles['shared']
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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 = '';
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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['shared'],
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$button_internal_markup
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);
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}
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$field_markup = sprintf(
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'<div class="wp-block-search__inside-wrapper"%s>%s</div>',
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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( $attributes ) {
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$shared_styles = array();
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$wrapper_styles = array();
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// Add width styles.
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$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 ( $has_border_radius ) {
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// Shared style for button and input radius values.
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$border_radius = $attributes['style']['border']['radius'];
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$shared_styles[] = sprintf( 'border-radius: %spx;', esc_attr( $border_radius ) );
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// Apply wrapper border radius if button placed inside.
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$button_inside = ! empty( $attributes['buttonPosition'] ) &&
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'button-inside' === $attributes['buttonPosition'];
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if ( $button_inside ) {
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// We adjust the border radius value for the outer wrapper element
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// to make it visually consistent with the radius applied to inner
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// elements.
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$default_padding = 4;
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$adjusted_radius = $border_radius + $default_padding;
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$wrapper_styles[] = sprintf( 'border-radius: %dpx;', esc_attr( $adjusted_radius ) );
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}
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}
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return array(
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'shared' => ! empty( $shared_styles ) ? sprintf( ' style="%s"', implode( ' ', $shared_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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