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<?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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/** |
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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 gutenberg_render_block_core_search( $attributes ) { |
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static $instance_id = 0; |
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|
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// Older versions of the Search block defaulted the label and buttonText |
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// attributes to `__( 'Search' )` meaning that many posts contain `<!-- |
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// wp:search /-->`. Support these by defaulting an undefined label and |
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// buttonText to `__( 'Search' )`. |
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$attributes = wp_parse_args( |
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$attributes, |
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array( |
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'label' => __( 'Search' ), |
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'buttonText' => __( 'Search' ), |
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) |
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); |
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|
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$input_id = 'wp-block-search__input-' . ++$instance_id; |
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$classnames = gutenberg_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 = gutenberg_styles_for_block_core_search( $attributes ); |
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|
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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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|
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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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|
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if ( $show_button ) { |
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$button_internal_markup = ''; |
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$button_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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$button_internal_markup = |
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'<svg id="search-icon" class="search-icon" viewBox="0 0 24 24" width="24" height="24"> |
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<path d="M13.5 6C10.5 6 8 8.5 8 11.5c0 1.1.3 2.1.9 3l-3.4 3 1 1.1 3.4-2.9c1 .9 2.2 1.4 3.6 1.4 3 0 5.5-2.5 5.5-5.5C19 8.5 16.5 6 13.5 6zm0 9.5c-2.2 0-4-1.8-4-4s1.8-4 4-4 4 1.8 4 4-1.8 4-4 4z"></path> |
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</svg>'; |
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} |
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|
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$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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$button_internal_markup |
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); |
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} |
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|
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$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' => $classnames ) ); |
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|
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return sprintf( |
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'<form role="search" method="get" action="%s" %s>%s</form>', |
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esc_url( home_url( '/' ) ), |
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$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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/** |
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* Registers the `core/search` block on the server. |
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*/ |
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function gutenberg_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' => 'gutenberg_render_block_core_search', |
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) |
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); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_search', 20 ); |
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|
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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 gutenberg_classnames_for_block_core_search( $attributes ) { |
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$classnames = array(); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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return implode( ' ', $classnames ); |
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} |
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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 gutenberg_styles_for_block_core_search( $attributes ) { |
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$shared_styles = array(); |
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$wrapper_styles = array(); |
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|
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// Add width styles. |
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$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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|
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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( $attributes['widthUnit'] ) |
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); |
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} |
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|
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// Add border radius styles. |
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$has_border_radius = ! empty( $attributes['style']['border']['radius'] ); |
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|
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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( $border_radius ) ); |
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|
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// Apply wrapper border radius if button placed inside. |
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$button_inside = ! empty( $attributes['buttonPosition'] ) && |
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'button-inside' === $attributes['buttonPosition']; |
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|
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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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|
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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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|
