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<?php |
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|
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namespace PXLBSAdminify\Inc\Classes; |
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|
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// no direct access allowed |
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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/** |
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* Google Fonts Local |
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* |
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* Downloads Google Fonts locally and serves them from wp-content/uploads/adminify-google-fonts/ |
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* |
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* @since 4.0.0 |
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*/ |
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class GoogleFontsLocal |
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{ |
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/** |
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* Singleton instance |
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*/ |
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private static $instance = null; |
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|
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/** |
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* User agent for fetching woff2 fonts |
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*/ |
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private $user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'; |
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|
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/** |
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* Base folder name for storing fonts |
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*/ |
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private $folder_name = 'adminify-google-fonts'; |
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|
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/** |
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* Get singleton instance |
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*/ |
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public static function get_instance() |
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{ |
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if (self::$instance === null) { |
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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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/** |
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* Constructor |
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*/ |
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private function __construct() |
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{ |
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// Hook into framework's save filter (most reliable) |
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add_filter('pxlbsadminify_adminify_saved_before', [$this, 'on_settings_save'], 10, 1); |
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|
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// Enqueue local fonts |
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add_action('admin_enqueue_scripts', [$this, 'enqueue_local_fonts'], 99); |
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} |
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|
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/** |
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* Handle settings save via framework filter |
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*/ |
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public function on_settings_save($data) |
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{ |
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$this->process_fonts($data); |
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return $data; |
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} |
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|
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/** |
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* Process fonts from settings data |
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*/ |
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public function process_fonts($data) |
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{ |
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if (!is_array($data)) { |
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return; |
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} |
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|
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// Body Font (admin_general_google_font) is a Pro-only feature. |
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// Pro/Classes/Assets_Pro.php hooks |
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// pxlbsadminify_adminify_saved_before to download that font on |
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// save. Free leaves it alone. |
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|
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// Process Light Mode Logo Typography |
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if (!empty($data['light_dark_mode']['admin_ui_light_mode']['admin_ui_light_logo_text_typo']['font-family'])) { |
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$typo = $data['light_dark_mode']['admin_ui_light_mode']['admin_ui_light_logo_text_typo']; |
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$font_family = $typo['font-family']; |
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$font_weights = !empty($typo['font-weight']) ? $typo['font-weight'] : '400'; |
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$this->download_font($font_family, $font_weights); |
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} |
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|
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// Process Dark Mode Logo Typography |
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if (!empty($data['light_dark_mode']['admin_ui_dark_mode']['admin_ui_dark_logo_text_typo']['font-family'])) { |
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$typo = $data['light_dark_mode']['admin_ui_dark_mode']['admin_ui_dark_logo_text_typo']; |
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$font_family = $typo['font-family']; |
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$font_weights = !empty($typo['font-weight']) ? $typo['font-weight'] : '400'; |
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$this->download_font($font_family, $font_weights); |
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} |
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} |
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|
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/** |
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* Get the local fonts folder path |
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*/ |
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public function get_folder() |
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{ |
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$upload_dir = wp_get_upload_dir(); |
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return $upload_dir['basedir'] . '/' . $this->folder_name; |
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} |
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|
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/** |
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* Get the local fonts folder URL |
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*/ |
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public function get_folder_url() |
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{ |
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$upload_dir = wp_get_upload_dir(); |
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$folder_url = $upload_dir['baseurl'] . '/' . $this->folder_name; |
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|
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if (is_ssl()) { |
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$folder_url = set_url_scheme($folder_url, 'https'); |
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} |
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|
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return $folder_url; |
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} |
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|
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/** |
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* Download a Google Font locally |
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*/ |
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public function download_font($font_family, $font_weights = '400') |
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{ |
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if (empty($font_family)) { |
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return false; |
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} |
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|
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// Sanitize font family for folder name |
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$font_slug = sanitize_title($font_family); |
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$folder = $this->get_folder() . '/' . $font_slug; |
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|
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// Create base folder |
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if (!file_exists($this->get_folder())) { |
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wp_mkdir_p($this->get_folder()); |
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} |
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|
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// Create font folder |
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if (!file_exists($folder)) { |
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wp_mkdir_p($folder); |
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} |
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|
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// Normalize font weights - convert 'normal' to '400', 'bold' to '700' |
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$weight_map = [ |
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'normal' => '400', |
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'bold' => '700', |
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'lighter' => '300', |
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'bolder' => '700', |
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]; |
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|
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if (is_array($font_weights)) { |
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$font_weights = array_map(function($w) use ($weight_map) { |
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return isset($weight_map[$w]) ? $weight_map[$w] : $w; |
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}, $font_weights); |
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$weights_string = implode(',', $font_weights); |
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$weights_array = $font_weights; |
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} else { |
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$font_weights = isset($weight_map[$font_weights]) ? $weight_map[$font_weights] : $font_weights; |
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$weights_string = $font_weights; |
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$weights_array = [$font_weights]; |
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} |
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|
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// Try the newer css2 API first |
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$font_string = urlencode($font_family); |
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$wght_string = implode(';', $weights_array); |
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$google_url = 'https://fonts.googleapis.com/css2?family=' . $font_string . ':wght@' . $wght_string . '&display=swap'; |
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|
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// Fetch CSS from Google |
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$response = wp_remote_get($google_url, [ |
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'user-agent' => $this->user_agent, |
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'timeout' => 30, |
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]); |
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|
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$css_content = ''; |
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if (!is_wp_error($response)) { |
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$css_content = wp_remote_retrieve_body($response); |
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} |
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|
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// Fallback: Use the older Google Fonts API (css) which is more forgiving |
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if (empty($css_content) || strpos($css_content, '@font-face') === false) { |
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$font_string = urlencode($font_family); |
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if (!empty($weights_string)) { |
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$font_string .= ':' . $weights_string; |
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} |
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$google_url = 'https://fonts.googleapis.com/css?family=' . $font_string . '&display=swap'; |
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|
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// Fetch CSS from Google using older API |
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$response = wp_remote_get($google_url, [ |
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'user-agent' => $this->user_agent, |
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'timeout' => 30, |
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]); |
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|
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if (!is_wp_error($response)) { |
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$css_content = wp_remote_retrieve_body($response); |
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} |
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} |
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|
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// Final fallback: Generate system font fallback CSS if Google Font not found |
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if (empty($css_content) || strpos($css_content, '@font-face') === false) { |
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$css_content = $this->generate_system_font_fallback($font_family, $weights_array); |
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} |
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|
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// Find all font file URLs |
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preg_match_all('/url\(([^)]+)\)/i', $css_content, $matches); |
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|
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if (!empty($matches[1])) { |
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foreach ($matches[1] as $font_url) { |
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$font_url = trim($font_url, '"\''); |
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|
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// Only process Google font URLs |
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if (strpos($font_url, 'fonts.gstatic.com') === false) { |
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continue; |
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} |
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|
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// Generate local filename |
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$url_hash = substr(md5($font_url), 0, 8); |
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$extension = pathinfo(wp_parse_url($font_url, PHP_URL_PATH), PATHINFO_EXTENSION); |
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if (empty($extension)) { |
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$extension = 'woff2'; |
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} |
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$local_filename = $font_slug . '-' . $url_hash . '.' . $extension; |
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$local_path = $folder . '/' . $local_filename; |
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$local_url = $this->get_folder_url() . '/' . $font_slug . '/' . $local_filename; |
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|
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// Download font file if not exists |
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if (!file_exists($local_path)) { |
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$font_response = wp_remote_get($font_url, [ |
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'user-agent' => $this->user_agent, |
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'timeout' => 30, |
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]); |
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|
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if (!is_wp_error($font_response)) { |
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$font_data = wp_remote_retrieve_body($font_response); |
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if (!empty($font_data)) { |
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file_put_contents($local_path, $font_data); |
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} |
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} |
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} |
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|
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// Replace URL in CSS |
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$css_content = str_replace($font_url, $local_url, $css_content); |
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} |
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} |
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|
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// Save local CSS file |
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$css_file = $folder . '/' . $font_slug . '.css'; |
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$header = "/* Local Google Font: {$font_family} */\n"; |
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$header .= "/* Generated by Adminify - " . gmdate('Y-m-d H:i:s') . " */\n\n"; |
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file_put_contents($css_file, $header . $css_content); |
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|
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return true; |
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} |
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|
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/** |
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* Get local font CSS URL |
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*/ |
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public function get_local_font_url($font_family) |
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{ |
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if (empty($font_family)) { |
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return false; |
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} |
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|
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$font_slug = sanitize_title($font_family); |
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$css_file = $this->get_folder() . '/' . $font_slug . '/' . $font_slug . '.css'; |
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|
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if (file_exists($css_file)) { |
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return $this->get_folder_url() . '/' . $font_slug . '/' . $font_slug . '.css?ver=' . filemtime($css_file); |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Check if font exists locally |
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*/ |
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public function is_font_local($font_family) |
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{ |
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if (empty($font_family)) { |
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return false; |
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} |
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|
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$font_slug = sanitize_title($font_family); |
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$css_file = $this->get_folder() . '/' . $font_slug . '/' . $font_slug . '.css'; |
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|
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return file_exists($css_file); |
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} |
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|
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/** |
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* Enqueue local fonts for admin |
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*/ |
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public function enqueue_local_fonts() |
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{ |
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$options = get_option('pxlbsadminify_settings'); |
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|
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if (empty($options) || !is_array($options)) { |
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return; |
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} |
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|
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// Body Font (admin_general_google_font) is a Pro-only feature. |
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// Pro/Classes/Assets_Pro.php enqueues that font via its own |
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// admin_enqueue_scripts callback. Free leaves it alone. |
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|
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// Light Mode Logo Typography |
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if (!empty($options['light_dark_mode']['admin_ui_light_mode']['admin_ui_light_logo_text_typo']['font-family'])) { |
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$font_family = $options['light_dark_mode']['admin_ui_light_mode']['admin_ui_light_logo_text_typo']['font-family']; |
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$local_url = $this->get_local_font_url($font_family); |
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|
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if ($local_url) { |
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wp_enqueue_style('adminify-local-logo-light-font', $local_url, [], PXLBSADMINIFY_VER); |
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} |
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} |
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|
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// Dark Mode Logo Typography |
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if (!empty($options['light_dark_mode']['admin_ui_dark_mode']['admin_ui_dark_logo_text_typo']['font-family'])) { |
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$font_family = $options['light_dark_mode']['admin_ui_dark_mode']['admin_ui_dark_logo_text_typo']['font-family']; |
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$local_url = $this->get_local_font_url($font_family); |
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|
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if ($local_url) { |
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wp_enqueue_style('adminify-local-logo-dark-font', $local_url, [], PXLBSADMINIFY_VER); |
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} |
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} |
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} |
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|
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/** |
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* Generate system font fallback CSS when Google Font is not found |
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*/ |
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private function generate_system_font_fallback($font_family, $weights_array) |
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{ |
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// System fonts to try as local fallbacks |
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$system_fonts = [ |
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'BlinkMacSystemFont', |
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'Segoe UI', |
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'Roboto', |
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'Helvetica Neue', |
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'Arial', |
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'sans-serif', |
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]; |
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|
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$css = "/* Fallback: Google Font '{$font_family}' not found */\n"; |
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$css .= "/* Using system font stack as fallback */\n\n"; |
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|
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foreach ($weights_array as $weight) { |
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$local_src = []; |
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foreach ($system_fonts as $font) { |
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$local_src[] = "local('{$font}')"; |
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} |
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|
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$css .= "@font-face {\n"; |
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$css .= " font-family: '{$font_family}';\n"; |
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$css .= " font-style: normal;\n"; |
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$css .= " font-weight: {$weight};\n"; |
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$css .= " font-display: swap;\n"; |
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$css .= " src: " . implode(",\n ", $local_src) . ";\n"; |
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$css .= "}\n\n"; |
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} |
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|
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return $css; |
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} |
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} |
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|
