252 lines
6.9 KiB
PHP
252 lines
6.9 KiB
PHP
<?php
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/**
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* A simple object containing properties for fonts.
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*
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* @package Kirki
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* @category Core
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* @author Ari Stathopoulos (@aristath)
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* @copyright Copyright (c) 2020, David Vongries
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* @license https://opensource.org/licenses/MIT
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* @since 1.0
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*/
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/**
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* The Kirki_Fonts object.
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*/
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final class Kirki_Fonts {
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/**
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* The mode we'll be using to add google fonts.
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* This is a todo item, not yet functional.
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*
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* @static
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* @todo
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* @access public
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* @var string
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*/
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public static $mode = 'link';
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/**
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* Holds a single instance of this object.
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*
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* @static
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* @access private
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* @var null|object
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*/
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private static $instance = null;
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/**
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* An array of our google fonts.
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*
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* @static
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* @access public
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* @var null|object
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*/
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public static $google_fonts = null;
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/**
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* The class constructor.
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*/
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private function __construct() {}
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/**
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* Get the one, true instance of this class.
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* Prevents performance issues since this is only loaded once.
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*
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* @return object Kirki_Fonts
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*/
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public static function get_instance() {
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if ( null === self::$instance ) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* Compile font options from different sources.
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*
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* @return array All available fonts.
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*/
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public static function get_all_fonts() {
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$standard_fonts = self::get_standard_fonts();
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$google_fonts = self::get_google_fonts();
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return apply_filters( 'kirki_fonts_all', array_merge( $standard_fonts, $google_fonts ) );
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}
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/**
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* Return an array of standard websafe fonts.
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*
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* @return array Standard websafe fonts.
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*/
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public static function get_standard_fonts() {
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$standard_fonts = array(
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'serif' => array(
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'label' => 'Serif',
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'stack' => 'Georgia,Times,"Times New Roman",serif',
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),
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'sans-serif' => array(
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'label' => 'Sans Serif',
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'stack' => '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif',
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),
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'monospace' => array(
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'label' => 'Monospace',
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'stack' => 'Monaco,"Lucida Sans Typewriter","Lucida Typewriter","Courier New",Courier,monospace',
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),
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);
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return apply_filters( 'kirki_fonts_standard_fonts', $standard_fonts );
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}
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/**
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* Return an array of all available Google Fonts.
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*
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* @return array All Google Fonts.
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*/
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public static function get_google_fonts() {
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// Get fonts from cache.
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self::$google_fonts = get_site_transient( 'kirki_googlefonts_cache' );
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/**
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* Reset the cache if we're using action=kirki-reset-cache in the URL.
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*
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* Note to code reviewers:
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* There's no need to check nonces or anything else, this is a simple true/false evaluation.
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*/
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if ( ! empty( $_GET['action'] ) && 'kirki-reset-cache' === $_GET['action'] ) { // phpcs:ignore WordPress.Security.NonceVerification
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self::$google_fonts = false;
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}
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// If cache is populated, return cached fonts array.
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if ( self::$google_fonts ) {
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return self::$google_fonts;
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}
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// If we got this far, cache was empty so we need to get from JSON.
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ob_start();
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include wp_normalize_path( dirname( __FILE__ ) . '/webfonts.json' ); // phpcs:ignore WPThemeReview.CoreFunctionality.FileInclude
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$fonts_json = ob_get_clean();
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$fonts = json_decode( $fonts_json, true );
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$google_fonts = array();
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if ( is_array( $fonts ) ) {
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foreach ( $fonts['items'] as $font ) {
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$google_fonts[ $font['family'] ] = array(
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'label' => $font['family'],
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'variants' => $font['variants'],
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'category' => $font['category'],
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);
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}
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}
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// Apply the 'kirki_fonts_google_fonts' filter.
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self::$google_fonts = apply_filters( 'kirki_fonts_google_fonts', $google_fonts );
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// Save the array in cache.
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$cache_time = apply_filters( 'kirki_googlefonts_transient_time', DAY_IN_SECONDS );
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set_site_transient( 'kirki_googlefonts_cache', self::$google_fonts, $cache_time );
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return self::$google_fonts;
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}
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/**
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* Returns an array of all available subsets.
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*
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* @static
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* @access public
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* @return array
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*/
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public static function get_google_font_subsets() {
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return array(
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'cyrillic' => 'Cyrillic',
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'cyrillic-ext' => 'Cyrillic Extended',
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'devanagari' => 'Devanagari',
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'greek' => 'Greek',
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'greek-ext' => 'Greek Extended',
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'khmer' => 'Khmer',
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'latin' => 'Latin',
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'latin-ext' => 'Latin Extended',
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'vietnamese' => 'Vietnamese',
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'hebrew' => 'Hebrew',
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'arabic' => 'Arabic',
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'bengali' => 'Bengali',
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'gujarati' => 'Gujarati',
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'tamil' => 'Tamil',
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'telugu' => 'Telugu',
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'thai' => 'Thai',
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);
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}
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/**
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* Dummy function to avoid issues with backwards-compatibility.
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* This is not functional, but it will prevent PHP Fatal errors.
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*
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* @static
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* @access public
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*/
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public static function get_google_font_uri() {}
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/**
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* Returns an array of all available variants.
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*
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* @static
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* @access public
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* @return array
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*/
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public static function get_all_variants() {
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return array(
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'100' => esc_html__( 'Ultra-Light 100', 'kirki' ),
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'100light' => esc_html__( 'Ultra-Light 100', 'kirki' ),
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'100italic' => esc_html__( 'Ultra-Light 100 Italic', 'kirki' ),
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'200' => esc_html__( 'Light 200', 'kirki' ),
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'200italic' => esc_html__( 'Light 200 Italic', 'kirki' ),
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'300' => esc_html__( 'Book 300', 'kirki' ),
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'300italic' => esc_html__( 'Book 300 Italic', 'kirki' ),
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'400' => esc_html__( 'Normal 400', 'kirki' ),
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'regular' => esc_html__( 'Normal 400', 'kirki' ),
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'italic' => esc_html__( 'Normal 400 Italic', 'kirki' ),
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'500' => esc_html__( 'Medium 500', 'kirki' ),
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'500italic' => esc_html__( 'Medium 500 Italic', 'kirki' ),
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'600' => esc_html__( 'Semi-Bold 600', 'kirki' ),
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'600bold' => esc_html__( 'Semi-Bold 600', 'kirki' ),
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'600italic' => esc_html__( 'Semi-Bold 600 Italic', 'kirki' ),
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'700' => esc_html__( 'Bold 700', 'kirki' ),
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'700italic' => esc_html__( 'Bold 700 Italic', 'kirki' ),
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'800' => esc_html__( 'Extra-Bold 800', 'kirki' ),
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'800bold' => esc_html__( 'Extra-Bold 800', 'kirki' ),
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'800italic' => esc_html__( 'Extra-Bold 800 Italic', 'kirki' ),
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'900' => esc_html__( 'Ultra-Bold 900', 'kirki' ),
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'900bold' => esc_html__( 'Ultra-Bold 900', 'kirki' ),
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'900italic' => esc_html__( 'Ultra-Bold 900 Italic', 'kirki' ),
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);
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}
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/**
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* Determine if a font-name is a valid google font or not.
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*
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* @static
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* @access public
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* @param string $fontname The name of the font we want to check.
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* @return bool
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*/
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public static function is_google_font( $fontname ) {
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return ( array_key_exists( $fontname, self::$google_fonts ) );
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}
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/**
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* Gets available options for a font.
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*
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* @static
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* @access public
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* @return array
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*/
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public static function get_font_choices() {
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$fonts = self::get_all_fonts();
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$fonts_array = array();
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foreach ( $fonts as $key => $args ) {
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$fonts_array[ $key ] = $key;
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}
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return $fonts_array;
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}
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}
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