Add upstream

wp-content/plugins/jetpack/modules/infinite-scroll/themes/twentyseventeen.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Infinite Scroll Theme Assets
+ *
+ * Register support for Twenty Seventeen.
+ */
+
+/**
+ * Add theme support for infinite scroll
+ */
+function jetpack_twentyseventeen_infinite_scroll_init() {
+	add_theme_support( 'infinite-scroll', array(
+		'container'      => 'main',
+		'render'         => 'jetpack_twentyseventeen_infinite_scroll_render',
+		'footer'         => 'content',
+		'footer_widgets' => jetpack_twentyseventeen_has_footer_widgets(),
+	) );
+}
+add_action( 'init', 'jetpack_twentyseventeen_infinite_scroll_init' );
+
+/**
+ * Custom render function for Infinite Scroll.
+ */
+function jetpack_twentyseventeen_infinite_scroll_render() {
+	while ( have_posts() ) {
+		the_post();
+		if ( is_search() ) {
+			get_template_part( 'template-parts/post/content', 'search' );
+		} else {
+			get_template_part( 'template-parts/post/content', get_post_format() );
+		}
+	}
+}
+
+/**
+ * Custom function to check for the presence of footer widgets or the social links menu
+ */
+function jetpack_twentyseventeen_has_footer_widgets() {
+	if ( is_active_sidebar( 'sidebar-2' ) ||
+		 is_active_sidebar( 'sidebar-3' ) ||
+		 has_nav_menu( 'social' ) ) {
+
+		return true;
+	}
+
+	return false;
+}
+
+/**
+ * Enqueue CSS stylesheet with theme styles for Infinite Scroll.
+ */
+function jetpack_twentyseventeen_infinite_scroll_enqueue_styles() {
+	if ( wp_script_is( 'the-neverending-homepage' ) ) {
+		wp_enqueue_style( 'infinity-twentyseventeen', plugins_url( 'twentyseventeen.css', __FILE__ ), array( 'the-neverending-homepage' ), '20161219' );
+		wp_style_add_data( 'infinity-twentyseventeen', 'rtl', 'replace' );
+	}
+}
+add_action( 'wp_enqueue_scripts', 'jetpack_twentyseventeen_infinite_scroll_enqueue_styles', 25 );