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kbe
218
core/customizer/modules/class-fonts-google.php
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218
core/customizer/modules/class-fonts-google.php
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<?php
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/**
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* Customizer Fonts Google
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*
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* @package Revision
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*/
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if ( ! class_exists( 'CSCO_Customizer_Fonts_Google' ) ) {
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/**
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* Customizer Fonts Google Class.
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*/
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final class CSCO_Customizer_Fonts_Google {
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/**
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* The array of fonts
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*
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* @var array
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*/
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public $fonts_output = array();
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/**
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* An array of all google fonts.
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*
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* @var array
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*/
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private $google_fonts = array();
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/**
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* Fonts to load.
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*
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* @var array
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*/
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protected $fonts_to_load = array();
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/**
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* The class constructor.
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*/
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public function __construct() {
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$this->google_fonts = CSCO_Customizer_Fonts::get_google_fonts();
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/** Initialize actions */
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add_action( 'wp_loaded', array( $this, 'populate_fonts' ) );
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add_filter( 'wp_resource_hints', array( $this, 'resource_hints' ), 10, 2 );
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if ( ! is_admin() || is_customize_preview() ) {
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add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_google_fonts' ), 999 );
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} else {
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add_action( 'enqueue_block_assets', array( $this, 'enqueue_google_fonts' ), 999 );
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}
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}
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/**
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* Loader for Google Fonts.
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*/
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public function populate_fonts() {
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// Go through our fields and populate $this->fonts_output.
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$this->loop_fields();
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// Goes through $this->fonts_output and adds or removes things as needed.
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$this->process_fonts();
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foreach ( $this->fonts_output as $font => $weights ) {
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foreach ( $weights as $key => $value ) {
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if ( 'italic' === $value ) {
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$weights[ $key ] = '400i';
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} else {
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$weights[ $key ] = str_replace( array( 'regular', 'bold', 'italic' ), array( '400', '', 'i' ), $value );
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}
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}
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$this->fonts_to_load[] = array(
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'family' => $font,
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'weights' => $weights,
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);
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}
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}
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/**
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* Goes through all our fields and then populates the $this->fonts_output property.
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*/
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public function loop_fields() {
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$fields = CSCO_Customizer::$fields;
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if ( is_array( $fields ) && $fields ) {
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foreach ( $fields as $field ) {
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if ( ! isset( $field['type'] ) || false === strpos( $field['type'], 'typography' ) ) {
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continue;
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}
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// Check active callback.
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if ( ! CSCO_Customizer_Helper::active_callback( $field ) ) {
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continue;
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}
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// Get the value.
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$value = CSCO_Customizer_Helper::get_value( $field['settings'] );
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// If we don't have a font-family then we can skip this.
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if ( ! isset( $value['font-family'] ) ) {
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continue;
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}
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// If not a google-font, then we can skip this.
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if ( ! isset( $value['font-family'] ) || ! CSCO_Customizer_Fonts::is_google_font( $value['font-family'] ) ) {
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continue;
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}
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// Set a default value for variants.
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if ( ! isset( $value['variant'] ) ) {
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$value['variant'] = 'regular';
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}
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// Add the requested google-font.
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if ( ! isset( $this->fonts_output[ $value['font-family'] ] ) ) {
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$this->fonts_output[ $value['font-family'] ] = array();
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}
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if ( ! in_array( $value['variant'], $this->fonts_output[ $value['font-family'] ], true ) ) {
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$this->fonts_output[ $value['font-family'] ][] = $value['variant'];
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}
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if ( isset( $field['choices']['variant'] ) && is_array( $field['choices']['variant'] ) ) {
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foreach ( $field['choices']['variant'] as $extra_variant ) {
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if ( ! in_array( $extra_variant, $this->fonts_output[ $value['font-family'] ], true ) ) {
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$this->fonts_output[ $value['font-family'] ][] = $extra_variant;
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}
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}
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}
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}
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}
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}
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/**
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* Determines the vbalidity of the selected font as well as its properties.
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* This is vital to make sure that the google-font script that we'll generate later
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* does not contain any invalid options.
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*/
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public function process_fonts() {
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// Early exit if font-family is empty.
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if ( empty( $this->fonts_output ) ) {
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return;
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}
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foreach ( $this->fonts_output as $font => $variants ) {
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// Determine if this is indeed a google font or not.
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// If it's not, then just remove it from the array.
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if ( ! array_key_exists( $font, $this->google_fonts ) ) {
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unset( $this->fonts_output[ $font ] );
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continue;
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}
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// Get all valid font variants for this font.
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$font_variants = array();
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if ( isset( $this->google_fonts[ $font ]['variants'] ) ) {
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$font_variants = $this->google_fonts[ $font ]['variants'];
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}
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foreach ( $variants as $variant ) {
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// If this is not a valid variant for this font-family
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// then unset it and move on to the next one.
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if ( ! in_array( strval( $variant ), $font_variants, true ) ) {
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$variant_key = array_search( $variant, $this->fonts_output[ $font ], true );
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unset( $this->fonts_output[ $font ][ $variant_key ] );
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continue;
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}
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}
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}
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}
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/**
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* Add preconnect for Google Fonts.
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*
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* @param array $urls URLs to print for resource hints.
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* @param string $relation_type The relation type the URLs are printed.
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*/
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public function resource_hints( $urls, $relation_type ) {
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$fonts_to_load = $this->fonts_output;
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if ( ! empty( $fonts_to_load ) && 'preconnect' === $relation_type ) {
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$urls[] = array(
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'href' => 'https://fonts.gstatic.com',
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'crossorigin',
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);
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}
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return $urls;
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}
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/**
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* Enqueue Google fonts.
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*/
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public function enqueue_google_fonts() {
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foreach ( $this->fonts_to_load as $font ) {
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// Set family.
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$family = str_replace( ' ', '+', trim( $font['family'] ) );
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// Set weights.
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$weights = join( ',', $font['weights'] );
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/**
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* The csco_customizer_google_fonts_subset hook.
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*
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* @since 1.0.0
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*/
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$subset = apply_filters( 'csco_customizer_google_fonts_subset', 'latin,latin-ext,cyrillic,cyrillic-ext,vietnamese' );
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$url = "https://fonts.googleapis.com/css?family={$family}:{$weights}&subset={$subset}&display=swap";
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wp_enqueue_style( md5( $url ), $url, array(), csco_get_theme_data( 'Version' ) );
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}
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}
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}
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new CSCO_Customizer_Fonts_Google();
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}
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