first commit

inc/libs/class-pressbook-upsell-control.php

@@ -0,0 +1,72 @@
+<?php
+/**
+ * Customize control upsell class.
+ *
+ * @package PressBook
+ */
+
+if ( class_exists( 'WP_Customize_Control' ) && ! class_exists( 'PressBook_Upsell_Control' ) ) {
+	/**
+	 * Create in-section upsell control.
+	 * Escape URL in the Customizer using esc_url().
+	 */
+	class PressBook_Upsell_Control extends WP_Customize_Control {
+		/**
+		 * The type of customize control being rendered.
+		 *
+		 * @var string
+		 */
+		public $type = 'pressbook-addon';
+
+		/**
+		 * Custom button URL to output.
+		 *
+		 * @var string
+		 */
+		public $url = '';
+
+		/**
+		 * Description of control.
+		 *
+		 * @var string
+		 */
+		public $description = '';
+
+
+		/**
+		 * Label of control.
+		 *
+		 * @var string
+		 */
+		public $label = '';
+
+		/**
+		 * Load the CSS.
+		 */
+		public function enqueue() {
+			wp_enqueue_style( 'pressbook-customize-section-button', get_theme_file_uri( 'inc/customize-controls.css' ), array(), PRESSBOOK_VERSION );
+		}
+
+		/**
+		 * Add custom parameters to pass to the JS via JSON.
+		 */
+		public function to_json() {
+			parent::to_json();
+			$this->json['url'] = esc_url( $this->url );
+		}
+
+		/**
+		 * Outputs the template.
+		 *
+		 * @return void
+		 */
+		public function content_template() {
+			?>
+			<p class="description">{{{ data.description }}}</p>
+			<span class="get-addon">
+				<a href="{{{ data.url }}}" class="button button-primary" target="_blank">{{ data.label }}</a>
+			</span>
+			<?php
+		}
+	}
+}