simplified API

Author: aristath

…ers/class-wp-webfonts-local-provider.php lib/class-wp-webfonts-provider-local.phplib/webfonts-api/providers/class-wp-webfonts-local-provider.php renamed to lib/class-wp-webfonts-provider-local.php lib/webfonts-api/providers/class-wp-webfonts-local-provider.php renamed to lib/class-wp-webfonts-provider-local.php

@@ -4,7 +4,7 @@
  *
  * @package    WordPress
  * @subpackage WebFonts
- * @since      5.9.0
+ * @since      6.0.0
  */
 
 /**
@@ -16,21 +16,21 @@
  *
  * When enqueued styles are rendered, the Controller passes its
  * 'local' webfonts {@see WP_Webfonts_Provider::set_setfonts()}
- * and then triggers {@see WP_Webfonts_Local_Provider::get_css()}
+ * and then triggers {@see WP_Webfonts_Provider_Local::get_css()}
  * the processing to transform them into `@font-face` styles.
  *
  * All know-how (business logic) for how to interact with and
  * generate styles from locally-hosted font files is contained
  * in this provider.
  *
- * @since 5.9.0
+ * @since 6.0.0
  */
-class WP_Webfonts_Local_Provider extends WP_Webfonts_Provider {
+class WP_Webfonts_Provider_Local extends WP_Webfonts_Provider {
 
 	/**
 	 * The provider's unique ID.
 	 *
-	 * @since 5.9.0
+	 * @since 6.0.0
 	 *
 	 * @var string
 	 */
@@ -82,7 +82,7 @@ class WP_Webfonts_Local_Provider extends WP_Webfonts_Provider {
 	 * }
 	 * </code>
 	 *
-	 * @since 5.9.0
+	 * @since 6.0.0
 	 *
 	 * @return string The `@font-face` CSS.
 	 */
@@ -103,7 +103,7 @@ public function get_css() {
 	/**
 	 * Order `src` items to optimize for browser support.
 	 *
-	 * @since 5.9.0
+	 * @since 6.0.0
 	 *
 	 * @param array $webfont Webfont to process.
 	 * @return array
@@ -176,7 +176,7 @@ private function order_src( array $webfont ) {
 	/**
 	 * Builds the font-family's CSS.
 	 *
-	 * @since 5.9.0
+	 * @since 6.0.0
 	 *
 	 * @param array $webfont Webfont to process.
 	 * @return string This font-family's CSS.
@@ -221,7 +221,7 @@ private function build_font_face_css( array $webfont ) {
 	/**
 	 * Compiles the `src` into valid CSS.
 	 *
-	 * @since 5.9.0
+	 * @since 6.0.0
 	 *
 	 * @param string $font_family Font family.
 	 * @param array  $value       Value to process.
@@ -246,7 +246,7 @@ private function compile_src( $font_family, array $value ) {
 	/**
 	 * Compiles the font variation settings.
 	 *
-	 * @since 5.9.0
+	 * @since 6.0.0
 	 *
 	 * @param array $font_variation_settings Array of font variation settings.
 	 * @return string The CSS.

lib/class-wp-webfonts-provider.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * Webfonts API: Provider abstract class.
+ *
+ * Individual webfonts providers should extend this class and implement.
+ *
+ * @package    WordPress
+ * @subpackage WebFonts
+ * @since      6.0.0
+ */
+
+/**
+ * Abstract class for Webfonts API providers.
+ *
+ * The starting point to building a webfont service provider.
+ *
+ * What is a Provider?
+ *
+ * A provider contains the know-how (business logic) for how to
+ * process its specific font service (i.e. local or remote)
+ * and how to generate the `@font-face` styles for its service.
+ *
+ * It receives a collection of webfonts from the Controller
+ * {@see WP_Webfonts_Provider::set_setfonts()}, and when requested
+ * {@see WP_Webfonts_Provider::get_css()}, it transforms them
+ * into styles (in a performant way for the provider service
+ * it manages).
+ *
+ * @since 6.0.0
+ */
+abstract class WP_Webfonts_Provider {
+
+	/**
+	 * Webfonts to be processed.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @var array[]
+	 */
+	protected $webfonts = array();
+
+	/**
+	 * Sets this provider's webfonts property.
+	 *
+	 * The API's Controller passes this provider's webfonts
+	 * for processing here in the provider.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @param array[] $webfonts Registered webfonts.
+	 */
+	public function set_webfonts( array $webfonts ) {
+		$this->webfonts = $webfonts;
+	}
+
+	/**
+	 * Gets the `@font-face` CSS for the provider's webfonts.
+	 *
+	 * This method is where the provider does it processing to build the
+	 * needed `@font-face` CSS for all of its webfonts. Specifics of how
+	 * this processing is done is contained in each provider.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @return string The `@font-face` CSS.
+	 */
+	abstract public function get_css();
+}