%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Webfonts API: Provider for locally-hosted fonts.
*
* @package WordPress
* @subpackage WebFonts
* @since 6.0.0
*/
if ( class_exists( 'WP_Webfonts_Provider_Local' ) ) {
return;
}
/**
* A core bundled provider for generating `@font-face` styles
* from locally-hosted font files.
*
* This provider builds an optimized `src` (for browser support)
* and then generates the `@font-face` styles.
*
* All know-how (business logic) for how to interact with and
* generate styles from locally-hosted font files is contained
* in this provider.
*
* @since 6.0.0
*/
class WP_Webfonts_Provider_Local extends WP_Webfonts_Provider {
/**
* The provider's unique ID.
*
* @since 6.0.0
*
* @var string
*/
protected $id = 'local';
/**
* Gets the `@font-face` CSS styles for locally-hosted font files.
*
* This method does the following processing tasks:
* 1. Orchestrates an optimized `src` (with format) for browser support.
* 2. Generates the `@font-face` for all its webfonts.
*
* For example, when given these webfonts:
* <code>
* array(
* 'source-serif-pro.normal.200 900' => array(
* 'provider' => 'local',
* 'font_family' => 'Source Serif Pro',
* 'font_weight' => '200 900',
* 'font_style' => 'normal',
* 'src' => 'https://example.com/wp-content/themes/twentytwentytwo/assets/fonts/source-serif-pro/SourceSerif4Variable-Roman.ttf.woff2' ),
* ),
* 'source-serif-pro.italic.400 900' => array(
* 'provider' => 'local',
* 'font_family' => 'Source Serif Pro',
* 'font_weight' => '200 900',
* 'font_style' => 'italic',
* 'src' => 'https://example.com/wp-content/themes/twentytwentytwo/assets/fonts/source-serif-pro/SourceSerif4Variable-Italic.ttf.woff2' ),
* ),
* )
* </code>
*
* the following `@font-face` styles are generated and returned:
* <code>
*
* @font-face{
* font-family:"Source Serif Pro";
* font-style:normal;
* font-weight:200 900;
* font-stretch:normal;
* src:local("Source Serif Pro"), url('/assets/fonts/source-serif-pro/SourceSerif4Variable-Roman.ttf.woff2') format('woff2');
* }
* @font-face{
* font-family:"Source Serif Pro";
* font-style:italic;
* font-weight:200 900;
* font-stretch:normal;
* src:local("Source Serif Pro"), url('/assets/fonts/source-serif-pro/SourceSerif4Variable-Italic.ttf.woff2') format('woff2');
* }
* </code>
*
* @since 6.0.0
*
* @return string The `@font-face` CSS.
*/
public function get_css() {
$css = '';
foreach ( $this->webfonts as $webfont ) {
// Order the webfont's `src` items to optimize for browser support.
$webfont = $this->order_src( $webfont );
// Build the @font-face CSS for this webfont.
$css .= '@font-face{' . $this->build_font_face_css( $webfont ) . '}';
}
return $css;
}
/**
* Order `src` items to optimize for browser support.
*
* @since 6.0.0
*
* @param array $webfont Webfont to process.
* @return array
*/
private function order_src( array $webfont ) {
if ( ! is_array( $webfont['src'] ) ) {
$webfont['src'] = (array) $webfont['src'];
}
$src = array();
$src_ordered = array();
foreach ( $webfont['src'] as $url ) {
// Add data URIs first.
if ( str_starts_with( trim( $url ), 'data:' ) ) {
$src_ordered[] = array(
'url' => $url,
'format' => 'data',
);
continue;
}
$format = pathinfo( $url, PATHINFO_EXTENSION );
$src[ $format ] = $url;
}
// Add woff2.
if ( ! empty( $src['woff2'] ) ) {
$src_ordered[] = array(
'url' => $src['woff2'],
'format' => 'woff2',
);
}
// Add woff.
if ( ! empty( $src['woff'] ) ) {
$src_ordered[] = array(
'url' => $src['woff'],
'format' => 'woff',
);
}
// Add ttf.
if ( ! empty( $src['ttf'] ) ) {
$src_ordered[] = array(
'url' => $src['ttf'],
'format' => 'truetype',
);
}
// Add eot.
if ( ! empty( $src['eot'] ) ) {
$src_ordered[] = array(
'url' => $src['eot'],
'format' => 'embedded-opentype',
);
}
// Add otf.
if ( ! empty( $src['otf'] ) ) {
$src_ordered[] = array(
'url' => $src['otf'],
'format' => 'opentype',
);
}
$webfont['src'] = $src_ordered;
return $webfont;
}
/**
* Builds the font-family's CSS.
*
* @since 6.0.0
*
* @param array $webfont Webfont to process.
* @return string This font-family's CSS.
*/
private function build_font_face_css( array $webfont ) {
$css = '';
// Wrap font-family in quotes if it contains spaces.
if (
str_contains( $webfont['font-family'], ' ' ) &&
! str_contains( $webfont['font-family'], '"' ) &&
! str_contains( $webfont['font-family'], "'" )
) {
$webfont['font-family'] = '"' . $webfont['font-family'] . '"';
}
foreach ( $webfont as $key => $value ) {
// Skip "provider", since it's for internal API use,
// and not a valid CSS property.
if ( 'provider' === $key ) {
continue;
}
// Compile the "src" parameter.
if ( 'src' === $key ) {
$value = $this->compile_src( $webfont['font-family'], $value );
}
// If font-variation-settings is an array, convert it to a string.
if ( 'font-variation-settings' === $key && is_array( $value ) ) {
$value = $this->compile_variations( $value );
}
if ( ! empty( $value ) ) {
$css .= "$key:$value;";
}
}
return $css;
}
/**
* Compiles the `src` into valid CSS.
*
* @since 6.0.0
*
* @param string $font_family Font family.
* @param array $value Value to process.
* @return string The CSS.
*/
private function compile_src( $font_family, array $value ) {
$src = "local($font_family)";
foreach ( $value as $item ) {
if ( str_starts_with( $item['url'], get_site_url() ) ) {
$item['url'] = wp_make_link_relative( $item['url'] );
}
$src .= ( 'data' === $item['format'] )
? ", url({$item['url']})"
: ", url('{$item['url']}') format('{$item['format']}')";
}
return $src;
}
/**
* Compiles the font variation settings.
*
* @since 6.0.0
*
* @param array $font_variation_settings Array of font variation settings.
* @return string The CSS.
*/
private function compile_variations( array $font_variation_settings ) {
$variations = '';
foreach ( $font_variation_settings as $key => $value ) {
$variations .= "$key $value";
}
return $variations;
}
}
Zerion Mini Shell 1.0