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<?php
/**
* Google Calendar Block.
*
* @since 8.3.0
*
* @package automattic/jetpack
*/
namespace Automattic\Jetpack\Extensions\Google_Calendar;
use Automattic\Jetpack\Blocks;
use Jetpack_Gutenberg;
/**
* 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(
__DIR__,
array(
'render_callback' => __NAMESPACE__ . '\load_assets',
)
);
}
add_action( 'init', __NAMESPACE__ . '\register_block' );
/**
* Google Calendar block registration/dependency declaration.
*
* @param array $attr Array containing the Google Calendar block attributes.
* @return string
*/
function load_assets( $attr ) {
$height = isset( $attr['height'] ) ? $attr['height'] : '600';
$url = isset( $attr['url'] )
? Jetpack_Gutenberg::validate_block_embed_url( $attr['url'], array( 'calendar.google.com' ) ) :
'';
$classes = Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attr );
Jetpack_Gutenberg::load_assets_as_required( __DIR__ );
if ( empty( $url ) ) {
return '';
}
$sandbox = 'allow-scripts allow-same-origin allow-popups';
if ( Blocks::is_amp_request() ) {
$noscript_src = str_replace(
'//calendar.google.com/calendar/embed',
'//calendar.google.com/calendar/htmlembed',
$url
);
$iframe = sprintf(
'<amp-iframe src="%1$s" frameborder="0" scrolling="no" height="%2$d" layout="fixed-height" sandbox="%3$s">%4$s%5$s</amp-iframe>',
esc_url( $url ),
absint( $height ),
esc_attr( $sandbox ),
sprintf(
'<a href="%s" placeholder>%s</a>',
esc_url( $url ),
esc_html__( 'Google Calendar', 'jetpack' )
),
sprintf(
'<noscript><iframe src="%1$s" frameborder="0" scrolling="no" sandbox="%2$s"></iframe></noscript>',
esc_url( $noscript_src ),
esc_attr( $sandbox )
)
);
} else {
$iframe = sprintf(
'<iframe src="%1$s" frameborder="0" style="border:0" scrolling="no" height="%2$d" width="100%%" sandbox="%3$s"></iframe>',
esc_url( $url ),
absint( $height ),
esc_attr( $sandbox )
);
}
return sprintf( '<div class="%s">%s</div>', esc_attr( $classes ), $iframe );
}