Initial commit

functions/kirki/modules/webfonts/class-kirki-modules-webfonts-local.php

@@ -0,0 +1,105 @@
+<?php
+/**
+ * Handles adding to the footer the @font-face CSS for locally-hosted google-fonts.
+ * Solves privacy concerns with Google's CDN and their sometimes less-than-transparent policies.
+ *
+ * @package     Kirki
+ * @category    Core
+ * @author      Aristeides Stathopoulos
+ * @copyright   Copyright (c) 2017, Aristeides Stathopoulos
+ * @license    https://opensource.org/licenses/MIT
+ * @since       3.0.28
+ */
+
+/**
+ * Manages the way Google Fonts are enqueued.
+ */
+final class Kirki_Modules_Webfonts_Local {
+
+	/**
+	 * The config ID.
+	 *
+	 * @access protected
+	 * @since 3.0.28
+	 * @var string
+	 */
+	protected $config_id;
+
+	/**
+	 * The Kirki_Modules_Webfonts object.
+	 *
+	 * @access protected
+	 * @since 3.0.28
+	 * @var object
+	 */
+	protected $webfonts;
+
+	/**
+	 * The Kirki_Fonts_Google object.
+	 *
+	 * @access protected
+	 * @since 3.0.28
+	 * @var object
+	 */
+	protected $googlefonts;
+
+	/**
+	 * Fonts to load.
+	 *
+	 * @access protected
+	 * @since 3.0.28
+	 * @var array
+	 */
+	protected $fonts_to_load = array();
+
+	/**
+	 * Constructor.
+	 *
+	 * @access public
+	 * @since 3..28
+	 * @param object $webfonts    The Kirki_Modules_Webfonts object.
+	 * @param object $googlefonts The Kirki_Fonts_Google object.
+	 */
+	public function __construct( $webfonts, $googlefonts ) {
+		$this->webfonts    = $webfonts;
+		$this->googlefonts = $googlefonts;
+
+		add_action( 'wp_footer', array( $this, 'add_styles' ) );
+		add_action( 'admin_footer', array( $this, 'add_styles' ) );
+	}
+
+	/**
+	 * Webfont Loader for Google Fonts.
+	 *
+	 * @access public
+	 * @since 3.0.28
+	 */
+	public function add_styles() {
+
+		// Go through our fields and populate $this->fonts.
+		$this->webfonts->loop_fields( $this->config_id );
+		$this->googlefonts->process_fonts();
+		$hosted_fonts = $this->googlefonts->get_hosted_fonts();
+
+		// Early exit if we don't need to add any fonts.
+		if ( empty( $hosted_fonts ) ) {
+			return;
+		}
+
+		// Make sure we only do this once per font-family.
+		$hosted_fonts = array_unique( $hosted_fonts );
+
+		// Start CSS.
+		$css = '';
+		foreach ( $hosted_fonts as $family ) {
+
+			// Add the @font-face CSS for this font-family.
+			$css .= Kirki_Fonts_Google_Local::init( $family )->get_css();
+		}
+
+		// If we've got CSS, add to the footer.
+		if ( $css ) {
+			echo '<style id="kirki-local-webfonts-' . esc_attr( sanitize_key( $this->config_id ) ) . '">' . $css . '</style>'; // WPCS: XSS ok.
+		}
+	}
+}