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<?php
/**
* Button Block.
*
* @since 8.5.0
*
* @package automattic/jetpack
*/
namespace Automattic\Jetpack\Extensions\Button;
use Automattic\Jetpack\Blocks;
use Jetpack_Gutenberg;
if ( ! defined( 'ABSPATH' ) ) {
exit( 0 );
}
const FEATURE_NAME = 'button';
const BLOCK_NAME = 'jetpack/' . FEATURE_NAME;
/**
* Registers the block for use in Gutenberg
* This is done via an action so that we can disable
* registration if we need to.
*/
function register_block() {
Blocks::jetpack_register_block(
BLOCK_NAME,
array(
'render_callback' => __NAMESPACE__ . '\render_block',
'render_email_callback' => __NAMESPACE__ . '\render_email',
'uses_context' => array( 'jetpack/parentBlockWidth' ),
'selectors' => array(
'border' => '.wp-block-jetpack-button .wp-block-button__link',
),
)
);
}
add_action( 'init', __NAMESPACE__ . '\register_block' );
/**
* Button block render callback.
*
* @param array $attributes Array containing the Button block attributes.
* @param string $content The Button block content.
*
* @return string
*/
function render_block( $attributes, $content ) {
$save_in_post_content = get_attribute( $attributes, 'saveInPostContent' );
// The Jetpack Button block depends on the core button block styles.
// The following ensures that those styles are enqueued when rendering this block.
enqueue_existing_button_style_dependency( 'core/button' );
enqueue_existing_button_style_dependency( 'core/buttons' );
Jetpack_Gutenberg::load_styles_as_required( FEATURE_NAME );
if ( $save_in_post_content || ! class_exists( 'DOMDocument' ) ) {
return $content;
}
$element = get_attribute( $attributes, 'element' );
$text = wp_kses_post( get_attribute( $attributes, 'text' ) );
$unique_id = get_attribute( $attributes, 'uniqueId' );
$url = get_attribute( $attributes, 'url' );
$classes = Blocks::classes( FEATURE_NAME, $attributes, array( 'wp-block-button' ) );
$button_classes = get_button_classes( $attributes );
$button_styles = get_button_styles( $attributes );
$wrapper_styles = get_button_wrapper_styles( $attributes );
$wrapper_attributes = sprintf( ' class="%s" style="%s"', esc_attr( $classes ), esc_attr( $wrapper_styles ) );
$button_attributes = sprintf( ' class="%s" style="%s"', esc_attr( $button_classes ), esc_attr( $button_styles ) );
if ( empty( $unique_id ) ) {
$button_attributes .= ' data-id-attr="placeholder"';
} else {
$button_attributes .= sprintf( ' data-id-attr="%1$s" id="%1$s"', esc_attr( $unique_id ) );
}
if ( ! in_array( $element, array( 'a', 'button', 'input' ), true ) ) {
$element = 'a';
}
if ( 'a' === $element ) {
$button_attributes .= sprintf( ' href="%s" target="_blank" role="button" rel="noopener noreferrer"', esc_url( $url ) );
} elseif ( 'button' === $element ) {
$button_attributes .= ' type="submit"';
} elseif ( 'input' === $element ) {
$button_attributes .= sprintf( ' type="submit" value="%s"', esc_attr( wp_strip_all_tags( $text, true ) ) );
}
$button_attributes .= ' data-wp-class--is-submitting="state.isSubmitting" data-wp-bind--aria-disabled="state.isAriaDisabled"';
$svg = '<svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M12,1A11,11,0,1,0,23,12,11,11,0,0,0,12,1Zm0,19a8,8,0,1,1,8-8A8,8,0,0,1,12,20Z" opacity=".25"/><path d="M10.14,1.16a11,11,0,0,0-9,8.92A1.59,1.59,0,0,0,2.46,12,1.52,1.52,0,0,0,4.11,10.7a8,8,0,0,1,6.66-6.61A1.42,1.42,0,0,0,12,2.69h0A1.57,1.57,0,0,0,10.14,1.16Z"><animateTransform attributeName="transform" type="rotate" dur="0.75s" values="0 12 12;360 12 12" repeatCount="indefinite"/></path></svg>';
$form_submitting_text = '<span class="is-visually-hidden">' . __( 'Submitting form', 'jetpack' ) . '</span>';
$spinner = '<span class="spinner" aria-hidden="true">' . $svg . $form_submitting_text . '</span>';
$button = 'input' === $element
? '<' . $element . $button_attributes . ' />'
: '<' . $element . $button_attributes . '>' . $text . $spinner . '</' . $element . '>';
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
return '<div' . $wrapper_attributes . '>' . $button . '</div>';
}
/**
* WooCommerce Email Editor render callback for the button block.
*
* @param string $block_content The block content.
* @param array $parsed_block The parsed block data.
* @param object $rendering_context The email rendering context.
*
* @return string
*/
function render_email( $block_content, array $parsed_block, $rendering_context ) {
// Validate input parameters and required dependencies
if ( ! isset( $parsed_block['attrs'] ) || ! is_array( $parsed_block['attrs'] ) ||
! class_exists( '\Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Button' ) ) {
return '';
}
$attributes = $parsed_block['attrs'];
// Create a mock innerHTML that WooCommerce's button renderer can parse
$button_text = ! empty( $attributes['text'] ) ? sanitize_text_field( $attributes['text'] ) : __( 'Click here', 'jetpack' );
$button_url = ! empty( $attributes['url'] ) ? $attributes['url'] : '#';
// Create the innerHTML that WooCommerce's button renderer expects
$inner_html = sprintf(
'<div class="wp-block-button"><a class="wp-block-button__link" href="%s">%s</a></div>',
esc_url( $button_url ),
esc_html( $button_text )
);
// Format attributes for WooCommerce's Styles_Helper
$formatted_attributes = format_attributes_for_woocommerce( $attributes );
// Create a mock parsed block that WooCommerce's button renderer can handle
$mock_parsed_block = array(
'innerHTML' => $inner_html,
'attrs' => $formatted_attributes,
);
// Use WooCommerce's core button renderer
$woo_button_renderer = new \Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Button();
return $woo_button_renderer->render( $block_content, $mock_parsed_block, $rendering_context );
}
/**
* Format button attributes for WooCommerce's Styles_Helper.
*
* @param array $attributes The original attributes.
* @return array The formatted attributes.
*/
function format_attributes_for_woocommerce( $attributes ) {
$formatted = array();
// Handle background colors (prioritize subscription attributes)
// Named colors go in backgroundColor, hex colors go in style.color.background
if ( ! empty( $attributes['buttonBackgroundColor'] ) ) {
$formatted['backgroundColor'] = $attributes['buttonBackgroundColor'];
} elseif ( ! empty( $attributes['backgroundColor'] ) ) {
$formatted['backgroundColor'] = $attributes['backgroundColor'];
}
if ( ! empty( $attributes['customButtonBackgroundColor'] ) ) {
$formatted['style']['color']['background'] = $attributes['customButtonBackgroundColor'];
} elseif ( ! empty( $attributes['customBackgroundColor'] ) ) {
$formatted['style']['color']['background'] = $attributes['customBackgroundColor'];
}
// Named colors go in textColor, hex colors go in style.color.text
if ( ! empty( $attributes['textColor'] ) ) {
$formatted['textColor'] = $attributes['textColor'];
}
if ( ! empty( $attributes['customTextColor'] ) ) {
$formatted['style']['color']['text'] = $attributes['customTextColor'];
}
// Handle typography (font size)
if ( ! empty( $attributes['fontSize'] ) ) {
$formatted['style']['typography']['fontSize'] = $attributes['fontSize'];
}
if ( ! empty( $attributes['customFontSize'] ) ) {
$formatted['style']['typography']['fontSize'] = $attributes['customFontSize'];
}
// Handle borders
if ( ! empty( $attributes['borderRadius'] ) ) {
$formatted['style']['border']['radius'] = $attributes['borderRadius'] . 'px';
}
// Named colors go in borderColor, hex colors go in style.color.border
if ( ! empty( $attributes['borderColor'] ) ) {
$formatted['borderColor'] = $attributes['borderColor'];
}
if ( ! empty( $attributes['customBorderColor'] ) ) {
$formatted['style']['border']['color'] = $attributes['customBorderColor'];
}
// Handle border weight (subscription block uses borderWeight, button block expects style.border.width)
if ( ! empty( $attributes['borderWeight'] ) ) {
$formatted['style']['border']['width'] = $attributes['borderWeight'] . 'px';
}
// Handle padding
if ( ! empty( $attributes['padding'] ) ) {
$formatted['style']['spacing']['padding'] = $attributes['padding'] . 'px';
}
return $formatted;
}
/**
* Get the Button block classes.
*
* @param array $attributes Array containing the block attributes.
*
* @return string
*/
function get_button_classes( $attributes ) {
$classes = array( 'wp-block-button__link' );
$has_class_name = array_key_exists( 'className', $attributes );
$has_named_text_color = array_key_exists( 'textColor', $attributes );
$has_custom_text_color = array_key_exists( 'customTextColor', $attributes );
$has_named_background_color = array_key_exists( 'backgroundColor', $attributes );
$has_custom_background_color = array_key_exists( 'customBackgroundColor', $attributes );
$has_named_gradient = array_key_exists( 'gradient', $attributes );
$has_custom_gradient = array_key_exists( 'customGradient', $attributes );
$has_border_radius = array_key_exists( 'borderRadius', $attributes );
$has_font_size = array_key_exists( 'fontSize', $attributes );
$has_named_border_color = array_key_exists( 'borderColor', $attributes );
if ( $has_font_size ) {
$classes[] = 'has-' . $attributes['fontSize'] . '-font-size';
$classes[] = 'has-custom-font-size';
}
if ( $has_class_name ) {
$classes[] = $attributes['className'];
}
if ( $has_named_text_color || $has_custom_text_color ) {
$classes[] = 'has-text-color';
}
if ( $has_named_text_color ) {
$classes[] = sprintf( 'has-%s-color', $attributes['textColor'] );
}
if ( $has_named_border_color ) {
$classes[] = sprintf( 'has-%s-border-color', $attributes['borderColor'] );
}
if (
$has_named_background_color ||
$has_custom_background_color ||
$has_named_gradient ||
$has_custom_gradient
) {
$classes[] = 'has-background';
}
if ( $has_named_background_color && ! $has_custom_gradient ) {
$classes[] = sprintf( 'has-%s-background-color', $attributes['backgroundColor'] );
}
if ( $has_named_gradient ) {
$classes[] = sprintf( 'has-%s-gradient-background', $attributes['gradient'] );
}
// phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
if ( $has_border_radius && 0 == $attributes['borderRadius'] ) {
$classes[] = 'no-border-radius';
}
return implode( ' ', $classes );
}
/**
* Get the Button block styles.
*
* @param array $attributes Array containing the block attributes.
*
* @return string
*/
function get_button_styles( $attributes ) {
$styles = array();
$has_named_text_color = array_key_exists( 'textColor', $attributes );
$has_custom_text_color = array_key_exists( 'customTextColor', $attributes );
$has_named_background_color = array_key_exists( 'backgroundColor', $attributes );
$has_custom_background_color = array_key_exists( 'customBackgroundColor', $attributes );
$has_named_gradient = array_key_exists( 'gradient', $attributes );
$has_custom_gradient = array_key_exists( 'customGradient', $attributes );
$has_border_radius = array_key_exists( 'borderRadius', $attributes );
$has_font_family = array_key_exists( 'fontFamily', $attributes );
$has_typography_styles = array_key_exists( 'style', $attributes ) && array_key_exists( 'typography', $attributes['style'] );
$has_custom_font_size = $has_typography_styles && array_key_exists( 'fontSize', $attributes['style']['typography'] );
$has_custom_text_transform = $has_typography_styles && array_key_exists( 'textTransform', $attributes['style']['typography'] );
$border_styles = array();
$border_attribute = $attributes['style']['border'] ?? null;
$is_border_style_array = is_array( $border_attribute );
$has_custom_border_color = $is_border_style_array && isset( $border_attribute['color'] );
$has_border_style = $is_border_style_array && isset( $border_attribute['style'] );
$has_border_width = $is_border_style_array && isset( $border_attribute['width'] );
$has_individual_borders = $is_border_style_array && (
isset( $border_attribute['top'] ) ||
isset( $border_attribute['right'] ) ||
isset( $border_attribute['bottom'] ) ||
isset( $border_attribute['left'] )
);
if ( $has_font_family ) {
$styles[] = sprintf( 'font-family: %s;', $attributes['fontFamily'] );
}
if ( $has_custom_font_size ) {
$styles[] = sprintf( 'font-size: %s;', $attributes['style']['typography']['fontSize'] );
}
if ( $has_custom_text_transform ) {
$styles[] = sprintf( 'text-transform: %s;', $attributes['style']['typography']['textTransform'] );
}
if ( ! $has_named_text_color && $has_custom_text_color ) {
$styles[] = sprintf( 'color: %s;', $attributes['customTextColor'] );
}
if ( ! $has_named_background_color && ! $has_named_gradient && $has_custom_gradient ) {
$styles[] = sprintf( 'background: %s;', $attributes['customGradient'] );
}
if (
$has_custom_background_color &&
! $has_named_background_color &&
! $has_named_gradient &&
! $has_custom_gradient
) {
$styles[] = sprintf( 'background-color: %s;', $attributes['customBackgroundColor'] );
}
// phpcs:ignore Universal.Operators.StrictComparisons.LooseNotEqual
if ( $has_border_radius && 0 != $attributes['borderRadius'] ) {
$styles[] = sprintf( 'border-radius: %spx;', $attributes['borderRadius'] );
}
if ( $has_custom_border_color ) {
$border_styles['color'] = $attributes['style']['border']['color'];
}
if ( $has_border_style ) {
$border_styles['style'] = $attributes['style']['border']['style'];
}
if ( $has_border_width ) {
$border_styles['width'] = $attributes['style']['border']['width'];
}
if ( $has_individual_borders ) {
foreach ( array( 'top', 'right', 'bottom', 'left' ) as $side ) {
$border = $attributes['style']['border'][ $side ] ?? null;
if ( is_array( $border ) ) {
$border_side_values = array(
'width' => $border['width'] ?? null,
'color' => $border['color'] ?? null,
'style' => $border['style'] ?? null,
);
$border_styles[ $side ] = $border_side_values;
}
}
}
$border_styles = wp_style_engine_get_styles( array( 'border' => $border_styles ) );
if ( isset( $border_styles['css'] ) ) {
$styles[] = $border_styles['css'];
}
return implode( ' ', $styles );
}
/**
* Get the Button wrapper block styles.
*
* @param array $attributes Array containing the block attributes.
*
* @return string
*/
function get_button_wrapper_styles( $attributes ) {
$styles = array();
$has_width = array_key_exists( 'width', $attributes );
if ( $has_width && ! empty( $attributes['width'] ) ) {
$styles[] = sprintf( 'width: %s;', $attributes['width'] );
}
return implode( ' ', $styles );
}
/**
* Get filtered attributes.
*
* @param array $attributes Array containing the Button block attributes.
* @param string $attribute_name String containing the attribute name to get.
*
* @return string
*/
function get_attribute( $attributes, $attribute_name ) {
if ( isset( $attributes[ $attribute_name ] ) ) {
return $attributes[ $attribute_name ];
}
$default_attributes = array(
'url' => '#',
'element' => 'a',
'saveInPostContent' => false,
);
if ( isset( $default_attributes[ $attribute_name ] ) ) {
return $default_attributes[ $attribute_name ];
}
}
/**
* Enqueue style for an existing block.
*
* The Jetpack Button block depends on styles from the core button block.
* In case that block is not already within the post content, we can use
* this function to ensure the block's style assets are enqueued.
*
* @param string $block_name Block type name including namespace.
*/
function enqueue_existing_button_style_dependency( $block_name ) {
$existing_block = \WP_Block_Type_Registry::get_instance()->get_registered( $block_name );
if ( isset( $existing_block ) && ! empty( $existing_block->style ) ) {
wp_enqueue_style( $existing_block->style );
}
}