<?php
/**
* Calendly Block.
*
* @since 8.2.0
*
* @package automattic/jetpack
*/
namespace Automattic\Jetpack\Extensions\Calendly;
use Automattic\Jetpack\Blocks;
use Jetpack_Gutenberg;
const FEATURE_NAME = 'calendly';
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__ . '\load_assets',
'plan_check' => true,
)
);
}
add_action( 'init', __NAMESPACE__ . '\register_block' );
/**
* Calendly block registration/dependency declaration.
*
* @param array $attr Array containing the Calendly block attributes.
* @param string $content String containing the Calendly block content.
*
* @return string
*/
function load_assets( $attr, $content ) {
if ( is_admin() ) {
return;
}
$url = Jetpack_Gutenberg::validate_block_embed_url(
get_attribute( $attr, 'url' ),
array( 'calendly.com' )
);
if ( empty( $url ) ) {
return;
}
/*
* Enqueue necessary scripts and styles.
*/
Jetpack_Gutenberg::load_assets_as_required( FEATURE_NAME );
$style = get_attribute( $attr, 'style' );
$hide_event_type_details = get_attribute( $attr, 'hideEventTypeDetails' );
$background_color = get_attribute( $attr, 'backgroundColor' );
$text_color = get_attribute( $attr, 'textColor' );
$primary_color = get_attribute( $attr, 'primaryColor' );
$classes = Blocks::classes( FEATURE_NAME, $attr, array( 'calendly-style-' . $style ) );
$block_id = wp_unique_id( 'calendly-block-' );
$is_amp_request = Blocks::is_amp_request();
if ( ! wp_script_is( 'jetpack-calendly-external-js' ) && ! $is_amp_request ) {
enqueue_calendly_js();
}
$base_url = $url;
$url = add_query_arg(
array(
'hide_event_type_details' => (int) $hide_event_type_details,
'background_color' => sanitize_hex_color_no_hash( $background_color ),
'text_color' => sanitize_hex_color_no_hash( $text_color ),
'primary_color' => sanitize_hex_color_no_hash( $primary_color ),
),
$url
);
if ( 'link' === $style ) {
if ( ! wp_style_is( 'jetpack-calendly-external-css' ) ) {
wp_enqueue_style( 'jetpack-calendly-external-css', 'https://assets.calendly.com/assets/external/widget.css', null, JETPACK__VERSION );
}
// Render deprecated version of Calendly block if needed. New markup block button class before rendering here.
if ( false === strpos( $content, 'wp-block-jetpack-button' ) ) {
$content = deprecated_render_button_v1( $attr, $block_id, $classes, $url );
} else {
$content = str_replace( 'calendly-widget-id', esc_attr( $block_id ), $content );
$content = str_replace( $base_url, $url, $content );
}
if ( ! $is_amp_request ) {
wp_add_inline_script(
'jetpack-calendly-external-js',
sprintf( "calendly_attach_link_events( '%s' )", esc_js( $block_id ) )
);
}
} else { // Inline style.
if ( $is_amp_request ) {
$content = sprintf(
'<div class="%1$s" id="%2$s"><a href="%3$s" role="button" target="_blank">%4$s</a></div>',
esc_attr( Blocks::classes( FEATURE_NAME, $attr ) ),
esc_attr( $block_id ),
esc_js( $url ),
wp_kses_post( get_attribute( $attr, 'submitButtonText' ) )
);
} else {
$content = sprintf(
'<div class="%1$s" id="%2$s"></div>',
esc_attr( $classes ),
esc_attr( $block_id )
);
$script = <<<JS_END
jetpackInitCalendly( '%s', '%s' );
JS_END;
wp_add_inline_script( 'jetpack-calendly-external-js', sprintf( $script, esc_url( $url ), esc_js( $block_id ) ) );
}
}
return $content;
}
/**
* Get filtered attributes.
*
* @param array $attributes Array containing the Calendly 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(
'style' => 'inline',
'submitButtonText' => esc_html__( 'Schedule time with me', 'jetpack' ),
'backgroundColor' => 'ffffff',
'textColor' => '4D5055',
'primaryColor' => '00A2FF',
'hideEventTypeDetails' => false,
);
if ( isset( $default_attributes[ $attribute_name ] ) ) {
return $default_attributes[ $attribute_name ];
}
}
/**
* Enqueues the Calendly JS library and inline function to attach event
* handlers to the button.
*
* @return void
*/
function enqueue_calendly_js() {
wp_enqueue_script(
'jetpack-calendly-external-js',
'https://assets.calendly.com/assets/external/widget.js',
null,
JETPACK__VERSION,
false
);
wp_add_inline_script(
'jetpack-calendly-external-js',
"function jetpackInitCalendly( url, elementId ) {
function initCalendlyWidget() {
if ( ! document.getElementById( elementId ) ) {
return;
}
Calendly.initInlineWidget({
url: url,
parentElement: document.getElementById( elementId ),
inlineStyles: false,
});
};
// For P2s only: wait until after o2 has
// replaced main#content to initialize widget.
if ( window.jQuery && window.o2 ) {
jQuery( 'body' ).on( 'ready_o2', function() { initCalendlyWidget() } );
// Else initialize widget without waiting.
} else {
document.addEventListener('DOMContentLoaded', function() {
initCalendlyWidget();
});
}
};
function calendly_attach_link_events( elementId ) {
var widget = document.getElementById( elementId );
if ( widget ) {
widget.addEventListener( 'click', function( event ) {
event.preventDefault();
Calendly.initPopupWidget( { url: event.target.href } );
} );
widget.addEventListener( 'keydown', function( event ) {
// Enter and space keys.
if ( event.keyCode === 13 || event.keyCode === 32 ) {
event.preventDefault();
event.target && event.target.click();
}
} );
}
}"
);
}
/**
* Renders a deprecated legacy version of the button HTML.
*
* @param array $attributes Array containing the Calendly block attributes.
* @param string $block_id The value for the ID attribute of the link.
* @param string $classes The CSS classes for the wrapper div.
* @param string $url Calendly URL for the link HREF.
*
* @return string
*/
function deprecated_render_button_v1( $attributes, $block_id, $classes, $url ) {
// This is the legacy version, so create the full link content.
$submit_button_text = get_attribute( $attributes, 'submitButtonText' );
$submit_button_classes = get_attribute( $attributes, 'submitButtonClasses' );
$submit_button_text_color = get_attribute( $attributes, 'customTextButtonColor' );
$submit_button_background_color = get_attribute( $attributes, 'customBackgroundButtonColor' );
/*
* If we have some additional styles from the editor
* (a custom text color, custom bg color, or both )
* Let's add that CSS inline.
*/
if ( ! empty( $submit_button_text_color ) || ! empty( $submit_button_background_color ) ) {
$inline_styles = sprintf(
'#%1$s{%2$s%3$s}',
esc_attr( $block_id ),
! empty( $submit_button_text_color )
? 'color:#' . sanitize_hex_color_no_hash( $submit_button_text_color ) . ';'
: '',
! empty( $submit_button_background_color )
? 'background-color:#' . sanitize_hex_color_no_hash( $submit_button_background_color ) . ';'
: ''
);
wp_add_inline_style( 'jetpack-calendly-external-css', $inline_styles );
}
return sprintf(
'<div class="wp-block-button %1$s"><a id="%2$s" class="%3$s" href="%4$s" role="button">%5$s</a></div>',
esc_attr( $classes ),
esc_attr( $block_id ),
! empty( $submit_button_classes ) ? esc_attr( $submit_button_classes ) : 'wp-block-button__link',
esc_js( $url ),
wp_kses_post( $submit_button_text )
);
}