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<?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 Aristeides Stathopoulos |
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* @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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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', $standard_fonts ); |
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} |
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/** |
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* Return an array of backup fonts based on the font-category |
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* |
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* @return array |
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*/ |
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public static function get_backup_fonts() { |
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$backup_fonts = array( |
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'sans-serif' => 'Helvetica, Arial, sans-serif', |
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'serif' => 'Georgia, serif', |
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'display' => '"Comic Sans MS", cursive, sans-serif', |
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'handwriting' => '"Comic Sans MS", cursive, sans-serif', |
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'monospace' => '"Lucida Console", Monaco, monospace', |
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); |
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return apply_filters( 'kirki_fonts_backup_fonts', $backup_fonts ); |
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} |
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/** |
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* Return an array of all available Google Fonts. |
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* |
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* @return array All Google Fonts. |
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*/ |
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public static function get_google_fonts() { |
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// Get fonts from cache. |
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self::$google_fonts = get_site_transient( 'kirki_googlefonts_cache' ); |
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// If we're debugging, don't use cached. |
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { |
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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::$google_fonts; |
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} |
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// If we got this far, cache was empty so we need to get from JSON. |
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ob_start(); |
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include wp_normalize_path( dirname( __FILE__ ) . '/webfonts.json' ); |
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$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', HOUR_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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