faustwp / includes / replacement / callbacks.php

callbacks.php in Faust.js 0.7.1, at includes/replacement/callbacks.php

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1	<?php
2	/**
3	* Replacement related callbacks.
4	*
5	* @package FaustWP
6	*/
7
8	namespace WPE\FaustWP\Replacement;
9
10	use function WPE\FaustWP\Settings\{
11	faustwp_get_setting,
12	is_image_source_replacement_enabled,
13	is_rewrites_enabled
14	};
15
16	if ( ! defined( 'ABSPATH' ) ) {
17	exit;
18	}
19
20	add_filter( 'the_content', __NAMESPACE__ . '\\content_replacement' );
21	/**
22	* Callback for WordPress 'the_content' filter.
23	*
24	* @param string $content The post content.
25	*
26	* @return string The post content.
27	* @todo Needs work...
28	*/
29	function content_replacement( $content ) {
30	if ( ! domain_replacement_enabled() ) {
31	return $content;
32	}
33
34	$replacement = faustwp_get_setting( 'frontend_uri' );
35	$site_url = site_url();
36
37	if ( ! $replacement ) {
38	$replacement = '/';
39	}
40
41	$content = str_replace( "href=\"{$site_url}", "href=\"{$replacement}", $content );
42
43	return str_replace( 'href="//', 'href="/', $content );
44	}
45
46	add_filter( 'the_content', __NAMESPACE__ . '\\image_source_replacement' );
47	/**
48	* Callback for WordPress 'the_content' filter to replace paths to media.
49	*
50	* @param string $content The post content.
51	*
52	* @return string The post content.
53	*/
54	function image_source_replacement( $content ) {
55	if ( ! is_image_source_replacement_enabled() ) {
56	return $content;
57	}
58
59	$frontend_uri = faustwp_get_setting( 'frontend_uri' );
60	$site_url = site_url();
61
62	// For urls with no domain or the frontend domain, replace with the wp site_url.
63	$patterns = array(
64	"#src=\"{$frontend_uri}/#",
65	'#src="/#',
66	);
67	return preg_replace( $patterns, "src=\"{$site_url}/", $content );
68	}
69
70	add_filter( 'wp_calculate_image_srcset', __NAMESPACE__ . '\\image_source_srcset_replacement' );
71	/**
72	* Callback for WordPress 'the_content' filter to replace paths to media.
73	*
74	* @param array $sources One or more arrays of source data to include in the 'srcset'.
75	*
76	* @return string One or more arrays of source data.
77	*/
78	function image_source_srcset_replacement( $sources ) {
79	if ( ! is_image_source_replacement_enabled() ) {
80	return $sources;
81	}
82
83	$frontend_uri = faustwp_get_setting( 'frontend_uri' );
84	$site_url = site_url();
85
86	if ( is_array( $sources ) ) {
87	// For urls with no domain or the frontend domain, replace with the wp site_url.
88	$patterns = array(
89	"#^{$frontend_uri}/#",
90	'#^/#',
91	);
92	foreach ( $sources as $width => $source ) {
93	$sources[ $width ]['url'] = preg_replace( $patterns, "$site_url/", $sources[ $width ]['url'] );
94	}
95	}
96
97	return $sources;
98	}
99
100	add_filter( 'preview_post_link', __NAMESPACE__ . '\\post_preview_link', 1000, 2 );
101	/**
102	* Callback for WordPress 'preview_post_link' filter.
103	*
104	* Swap the post preview link for headless front-end and to use the API entry to support Next.js preview mode.
105	*
106	* @param string $link URL used for the post preview.
107	* @param WP_Post $post Post object.
108	*
109	* @return string URL used for the post preview.
110	*/
111	function post_preview_link( $link, $post ) {
112	$frontend_uri = faustwp_get_setting( 'frontend_uri' );
113
114	if ( $frontend_uri ) {
115	$home_url = trailingslashit( get_home_url() );
116	$frontend_uri = trailingslashit( $frontend_uri );
117	/**
118	* This should already be handled by WPE\FaustWP\Replacement\post_link, but
119	* it's here for verbosity's sake and if the other filter changes for any reason.
120	*/
121	$link = str_replace( $home_url, $frontend_uri, $link );
122
123	$parsed_link_query = wp_parse_url( $link, PHP_URL_QUERY );
124	$args = wp_parse_args( $parsed_link_query );
125	$frontend_uri_path = wp_parse_url( $frontend_uri, PHP_URL_PATH );
126	$parsed_link_path = wp_parse_url( $link, PHP_URL_PATH );
127	$link_path = str_replace( $frontend_uri_path, '', $parsed_link_path );
128	$path = trailingslashit( $link_path );
129
130	$preview_id = isset( $args['preview_id'] ) ? $args['preview_id'] : $post->ID;
131
132	// Remove ?p=xx&preview=true from link temporarily.
133	$link = remove_query_arg(
134	array_keys( $args ),
135	$link
136	);
137
138	// Add p=xx if it's missing, which is the case for published posts.
139	if ( ! isset( $args['p'] ) ) {
140	$args['p'] = $preview_id;
141	}
142
143	// Add page_id=xx if it's missing, which is the case for published pages.
144	if ( ! isset( $args['page_id'] ) && 'page' === $post->post_type ) {
145	$args['page_id'] = $preview_id;
146	}
147
148	$untrailingslash_frontend_uri = untrailingslashit( $frontend_uri );
149	$unleadingslash_path = ltrim( $path, '/\\' );
150	$link = $untrailingslash_frontend_uri . '/' . $unleadingslash_path;
151
152	// Add ?p=xx&preview=true to link again.
153	$link = add_query_arg(
154	array(
155	$args,
156	),
157	$link
158	);
159	}
160
161	return $link;
162	}
163
164
165	add_filter( 'post_link', __NAMESPACE__ . '\\post_link', 1000 );
166	/**
167	* Callback for WordPress 'preview_post_link' filter and 'post_link' filter.
168	*
169	* Callback for WordPress 'post_link' filter.
170	*
171	* Swap post links in admin for headless front-end.
172	*
173	* @param string $link URL used for the post.
174	*
175	* @return string URL used for the post.
176	*/
177	function post_link( $link ) {
178	if (
179	! is_rewrites_enabled()
180	\|\| ( function_exists( 'is_graphql_request' ) && is_graphql_request() )
181	) {
182	return $link;
183	}
184
185	$frontend_uri = faustwp_get_setting( 'frontend_uri' );
186
187	if ( $frontend_uri ) {
188	return str_replace( trailingslashit( get_home_url() ), trailingslashit( $frontend_uri ), $link );
189	}
190
191	return $link;
192	}
193
194	add_filter( 'term_link', __NAMESPACE__ . '\\term_link', 1000 );
195	/**
196	* Rewrites term links to point to the specified front-end URL.
197	*
198	* @param string $term_link Term link URL.
199	*
200	* @return string
201	*/
202	function term_link( $term_link ) {
203	if ( ! is_rewrites_enabled() ) {
204	return $term_link;
205	}
206
207	$frontend_uri = faustwp_get_setting( 'frontend_uri' );
208
209	if ( empty( $frontend_uri ) ) {
210	return $term_link;
211	}
212
213	$frontend_uri = trailingslashit( $frontend_uri );
214	$site_url = trailingslashit( site_url() );
215
216	return str_replace( $site_url, $frontend_uri, $term_link );
217	}
218
219
220	add_action( 'enqueue_block_editor_assets', __NAMESPACE__ . '\\enqueue_preview_scripts' );
221	/**
222	* Adds JavaScript file to the Gutenberg editor page that prepends /preview to the preview link.
223	*
224	* XXX: Please remove this once this issue is resolved: https://github.com/WordPress/gutenberg/issues/13998
225	*/
226	function enqueue_preview_scripts() {
227	wp_enqueue_script( 'faustwp-gutenberg-filters', plugins_url( '/previewlinks.js', __FILE__ ), array(), '1.0.0', true );
228	wp_localize_script( 'faustwp-gutenberg-filters', '_faustwp_preview_link', array( '_preview_link' => get_preview_post_link() ) );
229	}
230