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<?php
/**
* Utilities for the rating block.
*
* @since 8.0.0
*
* @package automattic/jetpack
*/
if ( ! function_exists( 'jetpack_rating_meta_get_symbol_low_fidelity' ) ) {
/**
* Returns the low fidelity symbol for the block.
*
* @return string
*/
function jetpack_rating_meta_get_symbol_low_fidelity() {
return '<span aria-hidden="true">⭐</span>';
}
}
if ( ! function_exists( 'jetpack_rating_star_get_symbol_high_fidelity' ) ) {
/**
* Return the high fidelity symbol for the block.
*
* @param string $classname_whole Name of the whole symbol class.
* @param string $classname_half Name of the half symbol class.
* @param string $color Color of the block.
*
* @return string
*/
function jetpack_rating_star_get_symbol_high_fidelity( $classname_whole, $classname_half, $color ) {
return <<<ELO
<span>
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
<path class="{$classname_whole}" fill="{$color}" stroke="{$color}" d="M12,17.3l6.2,3.7l-1.6-7L22,9.2l-7.2-0.6L12,2L9.2,8.6L2,9.2L7.5,14l-1.6,7L12,17.3z" />
</svg>
</span>
<span>
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
<path class="{$classname_half}" fill="{$color}" stroke="{$color}" d="M12,17.3l6.2,3.7l-1.6-7L22,9.2l-7.2-0.6L12,2L9.2,8.6L2,9.2L7.5,14l-1.6,7L12,17.3z" />
</svg>
</span>
ELO;
}
}
if ( ! function_exists( 'jetpack_rating_meta_get_symbol_high_fidelity' ) ) {
/**
* Returns the high fidelity symbol for the block.
*
* @param array $attributes Array containing the block attributes.
* @param integer $pos Value to render whole and half symbols.
* @return string
*/
function jetpack_rating_meta_get_symbol_high_fidelity( $attributes, $pos ) {
$classname_whole = ( $attributes['rating'] >= ( $pos - 0.5 ) ) ? '' : 'is-rating-unfilled';
$classname_half = ( $attributes['rating'] >= $pos ) ? '' : 'is-rating-unfilled';
$color = empty( $attributes['color'] ) ? 'currentColor' : esc_attr( $attributes['color'] );
return jetpack_rating_star_get_symbol_high_fidelity( $classname_whole, $classname_half, $color );
}
}
if ( ! function_exists( 'jetpack_rating_get_schema_for_symbol' ) ) {
/**
* Returns an itemprop and content for rating symbols
*
* @param integer $position the position of the symbol.
* @param integer $max_rating the maximum symbol score.
*
* @return string
*/
function jetpack_rating_get_schema_for_symbol( $position, $max_rating ) {
$schema = '';
if ( 1 === $position ) {
$schema = 'itemprop="worstRating" content="0.5"';
} elseif ( $max_rating === $position ) {
$schema = 'itemprop="bestRating" content="' . esc_attr( $max_rating ) . '"';
}
return $schema;
}
}
if ( ! function_exists( 'jetpack_rating_meta_get_symbols' ) ) {
/**
* Returns the symbol for the block.
*
* @param array $attributes Array containing the block attributes.
*
* @return string
*/
function jetpack_rating_meta_get_symbols( $attributes ) {
// Output SVGs for high fidelity contexts, then color them according to rating.
// These are hidden by default, then unhid when CSS loads.
$symbols_hifi = array();
for ( $pos = 1; $pos <= $attributes['maxRating']; $pos++ ) {
$symbols_hifi[] = '<span style="display: none;" ' . jetpack_rating_get_schema_for_symbol( $pos, $attributes['maxRating'] ) . '>' . jetpack_rating_meta_get_symbol_high_fidelity( $attributes, $pos ) . '</span>';
}
// Output fallback symbols for low fidelity contexts, like AMP,
// where CSS is not loaded so the high-fidelity symbols won't be rendered.
$symbols_lofi = '';
for ( $i = 0; $i < $attributes['rating']; $i++ ) {
$symbols_lofi .= jetpack_rating_meta_get_symbol_low_fidelity();
}
return '<p>' . $symbols_lofi . '</p>' . implode( $symbols_hifi );
}
}
if ( ! function_exists( 'jetpack_rating_meta_render_block' ) ) {
/**
* Dynamic rendering of the block.
*
* @param array $attributes Array containing the block attributes.
*
* @return string
*/
function jetpack_rating_meta_render_block( $attributes ) {
$classname = empty( $attributes['className'] ) ? '' : ' ' . $attributes['className'];
return sprintf(
'<div class="%1$s" style="text-align:%4$s" itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">%2$s%3$s</div>',
esc_attr( 'wp-block-jetpack-rating-' . $attributes['ratingStyle'] . $classname ),
jetpack_rating_meta_get_symbols( $attributes ),
// translators: %1$s is awarded rating score, %2$s is the best possible rating.
'<span itemprop="ratingValue" class="screen-reader-text" content="' . esc_attr( $attributes['rating'] ) . '">' . sprintf( __( 'Rating: %1$s out of %2$s.', 'jetpack' ), esc_attr( $attributes['rating'] ), esc_attr( $attributes['maxRating'] ) ) . '</span>',
( isset( $attributes['align'] ) ) ? esc_attr( $attributes['align'] ) : ''
);
}
}