mybooktable / includes / extras / compatibility.php

compatibility.php in MyBookTable Bookstore by Stormhill Media trunk, at includes/extras/compatibility.php

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1	<?php
2	if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
3
4	/---------------------------------------------------------/
5	/* Compatibility Mode Functions */
6	/---------------------------------------------------------/
7
8	function mbt_is_compatability_mode_on() {
9	return apply_filters('mbt_is_compatability_mode_on', mbt_get_setting('compatibility_mode'));
10	}
11
12	function mbt_compat_init() {
13	if(mbt_is_compatability_mode_on()) {
14	//modify the post query
15	add_action('pre_get_posts', 'mbt_compat_pre_get_posts', 30);
16	add_action('wp', 'mbt_compat_override_query_posts', -999);
17
18	//override page template
19	remove_filter('template_include', 'mbt_load_book_templates');
20	add_filter('template_include', 'mbt_compat_load_book_templates');
21
22	//remove admin bar links that don't work in compatability mode
23	add_action('wp_before_admin_bar_render', 'mbt_compat_remove_admin_bar_links');
24	}
25	}
26	add_action('mbt_init', 'mbt_compat_init', 11);
27
28
29
30	/---------------------------------------------------------/
31	/* Template Overload Functions */
32	/---------------------------------------------------------/
33
34	function mbt_compat_remove_admin_bar_links() {
35	global $wp_admin_bar, $post;
36	if($post && $post->ID === -1) { $wp_admin_bar->remove_menu('edit'); }
37	}
38
39	function mbt_compat_custom_page_content($content) {
40	global $post;
41
42	if(mbt_has_template_context('compatability') or mbt_has_template_context('shortcode')) { return $content; }
43
44	$context = '';
45
46	if((mbt_is_booktable_page() and $post->ID == mbt_get_setting('booktable_page')) or (mbt_is_archive_query() and $post->ID == -1)) {
47	$context = 'archive';
48	} else if(is_singular('mbt_book')) {
49	$context = 'single';
50	}
51
52	if($context) {
53	//tweak $wp_current_filter in order to allow jetpack sharing to work
54	global $wp_current_filter;
55	$content_filter = array_pop($wp_current_filter);
56
57	ob_start();
58
59	mbt_start_template_context('compatability');
60	if($context == 'archive') {
61	mbt_load_archive_query();
62	mbt_start_template_context('archive');
63	?> <div id="mbt-container"> <?php
64	do_action('mbt_book_archive_content');
65	?> </div> <?php
66	mbt_end_template_context();
67	mbt_unload_archive_query();
68	} else if($context == 'single') {
69	$display_mode = mbt_get_book_display_mode($post->ID);
70	mbt_start_template_context('single');
71	mbt_start_template_display_mode($display_mode);
72	?> <div id="mbt-container"> <?php
73	do_action('mbt_single_book_'.$display_mode.'_content');
74	?> </div> <?php
75	mbt_end_template_display_mode();
76	mbt_end_template_context();
77	}
78	mbt_end_template_context();
79
80	$content = ob_get_contents();
81	ob_end_clean();
82
83	//undo $wp_current_filter tweak
84	$wp_current_filter[] = $content_filter;
85	}
86
87	return $content;
88	}
89
90	function mbt_compat_load_book_templates($template) {
91	global $post;
92	if(is_singular('mbt_book') or mbt_is_archive_query()) {
93	if(is_singular('mbt_book') and !mbt_book_display_mode_supports(mbt_get_book_display_mode($post->ID), 'embedding')) { return mbt_load_book_templates($template); }
94	// STORMHILL FIX 3.6.2: Block themes (FSE, e.g. Twenty Twenty-Five) have no page.php,
95	// and their index.php is a silent stub that renders nothing. Don't override the template
96	// for block themes — let WordPress load its own block template and inject content via
97	// the_content filter, which the core/post-content block applies correctly.
98	if ( ! function_exists( 'wp_is_block_theme' ) \|\| ! wp_is_block_theme() ) {
99	$template = locate_template('page.php');
100	if(empty($template)) { $template = locate_template('index.php'); }
101	}
102	add_filter('the_content', 'mbt_compat_custom_page_content', 999, 2);
103	} else if(mbt_is_booktable_page()) {
104	add_filter('the_content', 'mbt_compat_custom_page_content', 999, 2);
105	}
106	return $template;
107	}
108
109	function mbt_compat_pre_get_posts($query) {
110	if(!is_admin() and $query->is_main_query() and ($query->is_post_type_archive('mbt_book') or $query->is_tax('mbt_author') or $query->is_tax('mbt_series') or $query->is_tax('mbt_genre') or $query->is_tax('mbt_tag'))) {
111	global $mbt_archive_query;
112	if($query->get('mbt_author')) {
113	$mbt_archive_query = new WP_Query(array('post_type' => 'mbt_book', 'mbt_author' => $query->get('mbt_author'), 'paged' => $query->get('paged'), 'orderby' => 'menu_order', 'posts_per_page' => mbt_get_posts_per_page()));
114	} else if($query->get('mbt_series')) {
115	$mbt_archive_query = new WP_Query(array('post_type' => 'mbt_book', 'mbt_series' => $query->get('mbt_series'), 'paged' => $query->get('paged'), 'orderby' => 'meta_value_num', 'meta_key' => 'mbt_series_order', 'order' => 'ASC', 'posts_per_page' => mbt_get_posts_per_page()));
116	} else if($query->get('mbt_genre')) {
117	$mbt_archive_query = new WP_Query(array('post_type' => 'mbt_book', 'mbt_genre' => $query->get('mbt_genre'), 'paged' => $query->get('paged'), 'orderby' => 'menu_order', 'posts_per_page' => mbt_get_posts_per_page()));
118	} else if($query->get('mbt_tag')) {
119	$mbt_archive_query = new WP_Query(array('post_type' => 'mbt_book', 'mbt_tag' => $query->get('mbt_tag'), 'paged' => $query->get('paged'), 'orderby' => 'menu_order', 'posts_per_page' => mbt_get_posts_per_page()));
120	} else {
121	$mbt_archive_query = new WP_Query(array('post_type' => 'mbt_book', 'paged' => $query->get('paged'), 'orderby' => 'menu_order', 'posts_per_page' => mbt_get_posts_per_page()));
122	}
123	}
124	}
125
126	function mbt_compat_override_query_posts() {
127	if(mbt_is_archive_query()) {
128	//ID must be -1, not 0, or get_post_meta will (inexplicably) return false instead of "", which some themes (such as Divi theme) can't handle. There is no hook in get_post_meta to prevent this.
129	$post = new WP_Post((object)array(
130	"ID" => -1,
131	"post_author" => "1",
132	"post_date" => "",
133	"post_date_gmt" => "",
134	"post_modified" => "",
135	"post_modified_gmt" => "",
136	"post_content" => "",
137	"post_content_filtered" => "",
138	"post_excerpt" => "",
139	"post_title" => mbt_get_book_archive_title(),
140	"post_status" => "publish",
141	"comment_status" => "closed",
142	"ping_status" => "closed",
143	"post_password" => "",
144	"post_name" => "",
145	"to_ping" => "",
146	"pinged" => "",
147	"post_parent" => 0,
148	"guid" => "",
149	"menu_order" => 0,
150	"post_type" => "page",
151	"post_mime_type" => "",
152	"comment_count" => "0",
153	"filter" => "raw",
154	));
155
156	// This solves the get_post($post->ID) error when ID is -1!
157	wp_cache_set(-1, $post, 'posts');
158
159	global $wp_query;
160	$wp_query->post = $post;
161	$wp_query->posts = array($post);
162	$wp_query->post_count = 1;
163	$wp_query->is_page = true;
164	$wp_query->is_singular = true;
165	$wp_query->is_tax = false;
166	$wp_query->is_archive = false;
167	$wp_query->is_post_type_archive = false;
168	$wp_query->queried_object = $post;
169	$wp_query->queried_object_id = -1;
170	$GLOBALS['post'] = $wp_query->post;
171	$GLOBALS['posts'] = &$wp_query->posts;
172	}
173	}
174
175	function mbt_is_archive_query() {
176	global $mbt_archive_query;
177	return !empty($mbt_archive_query);
178	}
179
180	function mbt_load_archive_query() {
181	global $mbt_archive_query;
182	if(!empty($mbt_archive_query)) { mbt_push_query('mbt_archive_query', $mbt_archive_query); }
183	}
184
185	function mbt_unload_archive_query() {
186	mbt_pop_query('mbt_archive_query');
187	}
188