Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/imagify/views/button/optimize.php

@@ -0,0 +1,30 @@
+<?php
+defined( 'ABSPATH' ) || die( 'Cheatin’ uh?' );
+
+$html_atts = '';
+
+if ( empty( $data['atts'] ) ) {
+	$data['atts'] = [];
+}
+
+if ( ! isset( $data['atts']['class'] ) ) {
+	// Class used for JS.
+	$data['atts']['class'] = 'button-primary button-imagify-optimize';
+}
+
+if ( ! isset( $data['atts']['data-processing-label'] ) ) {
+	// Used for JS.
+	$data['atts']['data-processing-label'] = __( 'Optimizing...', 'imagify' );
+}
+
+$html_atts = $this->build_attributes( $data['atts'] );
+?>
+
+<a href="<?php echo esc_url( $data['url'] ); ?>"<?php echo $html_atts; ?>>
+	<?php esc_html_e( 'Optimize', 'imagify' ); ?>
+</a>
+
+<?php
+if ( ! empty( $data['atts']['data-processing-label'] ) ) {
+	$this->print_js_template_in_footer( 'button/processing' );
+}