517 lines
15 KiB
PHP
517 lines
15 KiB
PHP
<?php
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/**
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* Clean up wp_head()
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*
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* Remove unnecessary <link>'s
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* Remove inline CSS used by Recent Comments widget
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* Remove inline CSS used by posts with galleries
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* Remove self-closing tag and change ''s to "'s on rel_canonical()
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*/
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function roots_head_cleanup() {
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// Originally from http://wpengineer.com/1438/wordpress-header/
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remove_action('wp_head', 'feed_links', 2);
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remove_action('wp_head', 'feed_links_extra', 3);
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remove_action('wp_head', 'rsd_link');
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remove_action('wp_head', 'wlwmanifest_link');
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remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);
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remove_action('wp_head', 'wp_generator');
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remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);
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global $wp_widget_factory;
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remove_action('wp_head', array($wp_widget_factory->widgets['WP_Widget_Recent_Comments'], 'recent_comments_style'));
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add_filter('use_default_gallery_style', '__return_null');
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if (!class_exists('WPSEO_Frontend')) {
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remove_action('wp_head', 'rel_canonical');
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add_action('wp_head', 'roots_rel_canonical');
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}
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}
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function roots_rel_canonical() {
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global $wp_the_query;
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if (!is_singular()) {
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return;
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}
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if (!$id = $wp_the_query->get_queried_object_id()) {
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return;
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}
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$link = get_permalink($id);
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echo "\t<link rel=\"canonical\" href=\"$link\">\n";
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}
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add_action('init', 'roots_head_cleanup');
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/**
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* Remove the WordPress version from RSS feeds
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*/
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add_filter('the_generator', '__return_false');
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/**
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* Clean up language_attributes() used in <html> tag
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*
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* Change lang="en-US" to lang="en"
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* Remove dir="ltr"
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*/
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function roots_language_attributes() {
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$attributes = array();
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$output = '';
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if (function_exists('is_rtl')) {
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if (is_rtl() == 'rtl') {
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$attributes[] = 'dir="rtl"';
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}
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}
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$lang = get_bloginfo('language');
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if ($lang && $lang !== 'en-US') {
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$attributes[] = "lang=\"$lang\"";
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} else {
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$attributes[] = 'lang="en"';
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}
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$output = implode(' ', $attributes);
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$output = apply_filters('roots_language_attributes', $output);
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return $output;
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}
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add_filter('language_attributes', 'roots_language_attributes');
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/**
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* Clean up output of stylesheet <link> tags
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*/
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function roots_clean_style_tag($input) {
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preg_match_all("!<link rel='stylesheet'\s?(id='[^']+')?\s+href='(.*)' type='text/css' media='(.*)' />!", $input, $matches);
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// Only display media if it's print
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$media = $matches[3][0] === 'print' ? ' media="print"' : '';
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return '<link rel="stylesheet" href="' . $matches[2][0] . '"' . $media . '>' . "\n";
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}
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add_filter('style_loader_tag', 'roots_clean_style_tag');
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/**
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* Add and remove body_class() classes
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*/
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function roots_body_class($classes) {
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// Add 'top-navbar' class if using Bootstrap's Navbar
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// Used to add styling to account for the WordPress admin bar
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if (current_theme_supports('bootstrap-top-navbar')) {
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$classes[] = 'top-navbar';
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}
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// Add post/page slug
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if (is_single() || is_page() && !is_front_page()) {
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$classes[] = basename(get_permalink());
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}
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// Remove unnecessary classes
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$home_id_class = 'page-id-' . get_option('page_on_front');
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$remove_classes = array(
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'page-template-default',
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$home_id_class
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);
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$classes = array_diff($classes, $remove_classes);
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return $classes;
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}
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add_filter('body_class', 'roots_body_class');
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/**
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* Root relative URLs
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*
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* WordPress likes to use absolute URLs on everything - let's clean that up.
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* Inspired by http://www.456bereastreet.com/archive/201010/how_to_make_wordpress_urls_root_relative/
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*
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* You can enable/disable this feature in config.php:
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* current_theme_supports('root-relative-urls');
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*
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* @author Scott Walkinshaw <scott.walkinshaw@gmail.com>
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*/
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function roots_root_relative_url($input) {
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$output = preg_replace_callback(
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'!(https?://[^/|"]+)([^"]+)?!',
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create_function(
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'$matches',
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// If full URL is home_url("/") and this isn't a subdir install, return a slash for relative root
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'if (isset($matches[0]) && $matches[0] === home_url("/") && str_replace("http://", "", home_url("/", "http"))==$_SERVER["HTTP_HOST"]) { return "/";' .
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// If domain is equal to home_url("/"), then make URL relative
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'} elseif (isset($matches[0]) && strpos($matches[0], home_url("/")) !== false) { return $matches[2];' .
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// If domain is not equal to home_url("/"), do not make external link relative
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'} else { return $matches[0]; };'
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),
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$input
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);
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return $output;
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}
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/**
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* Terrible workaround to remove the duplicate subfolder in the src of <script> and <link> tags
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* Example: /subfolder/subfolder/css/style.css
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*/
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function roots_fix_duplicate_subfolder_urls($input) {
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$output = roots_root_relative_url($input);
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preg_match_all('!([^/]+)/([^/]+)!', $output, $matches);
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if (isset($matches[1][0]) && isset($matches[2][0])) {
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if ($matches[1][0] === $matches[2][0]) {
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$output = substr($output, strlen($matches[1][0]) + 1);
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}
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}
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return $output;
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}
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function roots_enable_root_relative_urls() {
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return !(is_admin() && in_array($GLOBALS['pagenow'], array('wp-login.php', 'wp-register.php'))) && current_theme_supports('root-relative-urls');
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}
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if (roots_enable_root_relative_urls()) {
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$root_rel_filters = array(
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'bloginfo_url',
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'theme_root_uri',
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'stylesheet_directory_uri',
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'template_directory_uri',
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'plugins_url',
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'the_permalink',
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'wp_list_pages',
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'wp_list_categories',
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'wp_nav_menu',
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'the_content_more_link',
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'the_tags',
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'get_pagenum_link',
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'get_comment_link',
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'month_link',
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'day_link',
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'year_link',
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'tag_link',
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'the_author_posts_link'
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);
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add_filters($root_rel_filters, 'roots_root_relative_url');
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add_filter('script_loader_src', 'roots_fix_duplicate_subfolder_urls');
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add_filter('style_loader_src', 'roots_fix_duplicate_subfolder_urls');
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}
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/**
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* Wrap embedded media as suggested by Readability
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*
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* @link https://gist.github.com/965956
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* @link http://www.readability.com/publishers/guidelines#publisher
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*/
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function roots_embed_wrap($cache, $url, $attr = '', $post_ID = '') {
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return '<div class="entry-content-asset">' . $cache . '</div>';
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}
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add_filter('embed_oembed_html', 'roots_embed_wrap', 10, 4);
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add_filter('embed_googlevideo', 'roots_embed_wrap', 10, 2);
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/**
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* Add class="thumbnail" to attachment items
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*/
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function roots_attachment_link_class($html) {
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$postid = get_the_ID();
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$html = str_replace('<a', '<a class="thumbnail"', $html);
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return $html;
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}
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add_filter('wp_get_attachment_link', 'roots_attachment_link_class', 10, 1);
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/**
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* Add Bootstrap thumbnail styling to images with captions
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* Use <figure> and <figcaption>
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*
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* @link http://justintadlock.com/archives/2011/07/01/captions-in-wordpress
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*/
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function roots_caption($output, $attr, $content) {
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if (is_feed()) {
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return $output;
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}
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$defaults = array(
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'id' => '',
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'align' => 'alignnone',
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'width' => '',
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'caption' => ''
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);
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$attr = shortcode_atts($defaults, $attr);
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// If the width is less than 1 or there is no caption, return the content wrapped between the [caption] tags
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if ($attr['width'] < 1 || empty($attr['caption'])) {
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return $content;
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}
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// Set up the attributes for the caption <figure>
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$attributes = (!empty($attr['id']) ? ' id="' . esc_attr($attr['id']) . '"' : '' );
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$attributes .= ' class="thumbnail wp-caption ' . esc_attr($attr['align']) . '"';
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$attributes .= ' style="width: ' . esc_attr($attr['width']) . 'px"';
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$output = '<figure' . $attributes .'>';
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$output .= do_shortcode($content);
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$output .= '<figcaption class="caption wp-caption-text">' . $attr['caption'] . '</figcaption>';
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$output .= '</figure>';
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return $output;
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}
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add_filter('img_caption_shortcode', 'roots_caption', 10, 3);
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/**
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* Clean up gallery_shortcode()
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*
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* Re-create the [gallery] shortcode and use thumbnails styling from Bootstrap
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*
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* @link http://twitter.github.com/bootstrap/components.html#thumbnails
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*/
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function roots_gallery($attr) {
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$post = get_post();
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static $instance = 0;
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$instance++;
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if (!empty($attr['ids'])) {
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if (empty($attr['orderby'])) {
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$attr['orderby'] = 'post__in';
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}
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$attr['include'] = $attr['ids'];
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}
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$output = apply_filters('post_gallery', '', $attr);
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if ($output != '') {
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return $output;
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}
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if (isset($attr['orderby'])) {
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$attr['orderby'] = sanitize_sql_orderby($attr['orderby']);
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if (!$attr['orderby']) {
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unset($attr['orderby']);
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}
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}
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extract(shortcode_atts(array(
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'order' => 'ASC',
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'orderby' => 'menu_order ID',
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'id' => $post->ID,
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'itemtag' => '',
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'icontag' => '',
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'captiontag' => '',
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'columns' => 3,
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'size' => 'thumbnail',
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'include' => '',
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'exclude' => ''
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), $attr));
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$id = intval($id);
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if ($order === 'RAND') {
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$orderby = 'none';
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}
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if (!empty($include)) {
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$_attachments = get_posts(array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));
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$attachments = array();
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foreach ($_attachments as $key => $val) {
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$attachments[$val->ID] = $_attachments[$key];
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}
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} elseif (!empty($exclude)) {
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$attachments = get_children(array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));
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} else {
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$attachments = get_children(array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));
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}
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if (empty($attachments)) {
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return '';
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}
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if (is_feed()) {
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$output = "\n";
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foreach ($attachments as $att_id => $attachment) {
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$output .= wp_get_attachment_link($att_id, $size, true) . "\n";
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}
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return $output;
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}
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$output = '<ul class="thumbnails gallery">';
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$i = 0;
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foreach ($attachments as $id => $attachment) {
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$link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false);
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$output .= '<li>' . $link;
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if (trim($attachment->post_excerpt)) {
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$output .= '<div class="caption hidden">' . wptexturize($attachment->post_excerpt) . '</div>';
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}
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$output .= '</li>';
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}
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$output .= '</ul>';
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return $output;
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}
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remove_shortcode('gallery');
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add_shortcode('gallery', 'roots_gallery');
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/**
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* Remove unnecessary dashboard widgets
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*
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* @link http://www.deluxeblogtips.com/2011/01/remove-dashboard-widgets-in-wordpress.html
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*/
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function roots_remove_dashboard_widgets() {
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remove_meta_box('dashboard_incoming_links', 'dashboard', 'normal');
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remove_meta_box('dashboard_plugins', 'dashboard', 'normal');
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remove_meta_box('dashboard_primary', 'dashboard', 'normal');
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remove_meta_box('dashboard_secondary', 'dashboard', 'normal');
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}
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add_action('admin_init', 'roots_remove_dashboard_widgets');
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/**
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* Clean up the_excerpt()
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*/
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function roots_excerpt_length($length) {
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return POST_EXCERPT_LENGTH;
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}
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function roots_excerpt_more($more) {
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return ' … <a href="' . get_permalink() . '">' . __('Continued', 'roots') . '</a>';
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}
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add_filter('excerpt_length', 'roots_excerpt_length');
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add_filter('excerpt_more', 'roots_excerpt_more');
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/**
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* Remove unnecessary self-closing tags
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*/
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function roots_remove_self_closing_tags($input) {
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return str_replace(' />', '>', $input);
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}
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add_filter('get_avatar', 'roots_remove_self_closing_tags'); // <img />
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add_filter('comment_id_fields', 'roots_remove_self_closing_tags'); // <input />
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add_filter('post_thumbnail_html', 'roots_remove_self_closing_tags'); // <img />
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/**
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* Don't return the default description in the RSS feed if it hasn't been changed
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*/
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function roots_remove_default_description($bloginfo) {
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$default_tagline = 'Just another WordPress site';
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return ($bloginfo === $default_tagline) ? '' : $bloginfo;
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}
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add_filter('get_bloginfo_rss', 'roots_remove_default_description');
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/**
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* Allow more tags in TinyMCE including <iframe> and <script>
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*/
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function roots_change_mce_options($options) {
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$ext = 'pre[id|name|class|style],iframe[align|longdesc|name|width|height|frameborder|scrolling|marginheight|marginwidth|src],script[charset|defer|language|src|type]';
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if (isset($initArray['extended_valid_elements'])) {
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$options['extended_valid_elements'] .= ',' . $ext;
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} else {
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$options['extended_valid_elements'] = $ext;
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}
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return $options;
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}
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add_filter('tiny_mce_before_init', 'roots_change_mce_options');
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/**
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* Add additional classes onto widgets
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*
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* @link http://wordpress.org/support/topic/how-to-first-and-last-css-classes-for-sidebar-widgets
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*/
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function roots_widget_first_last_classes($params) {
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global $my_widget_num;
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$this_id = $params[0]['id'];
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$arr_registered_widgets = wp_get_sidebars_widgets();
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if (!$my_widget_num) {
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$my_widget_num = array();
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}
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if (!isset($arr_registered_widgets[$this_id]) || !is_array($arr_registered_widgets[$this_id])) {
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return $params;
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}
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if (isset($my_widget_num[$this_id])) {
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$my_widget_num[$this_id] ++;
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} else {
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$my_widget_num[$this_id] = 1;
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}
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$class = 'class="widget-' . $my_widget_num[$this_id] . ' ';
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if ($my_widget_num[$this_id] == 1) {
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$class .= 'widget-first ';
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} elseif ($my_widget_num[$this_id] == count($arr_registered_widgets[$this_id])) {
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$class .= 'widget-last ';
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}
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$params[0]['before_widget'] = preg_replace('/class=\"/', "$class", $params[0]['before_widget'], 1);
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return $params;
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}
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add_filter('dynamic_sidebar_params', 'roots_widget_first_last_classes');
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/**
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* Redirects search results from /?s=query to /search/query/, converts %20 to +
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*
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* @link http://txfx.net/wordpress-plugins/nice-search/
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*/
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function roots_nice_search_redirect() {
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global $wp_rewrite;
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if (!isset($wp_rewrite) || !is_object($wp_rewrite) || !$wp_rewrite->using_permalinks()) {
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return;
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}
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$search_base = $wp_rewrite->search_base;
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if (is_search() && !is_admin() && strpos($_SERVER['REQUEST_URI'], "/{$search_base}/") === false) {
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wp_redirect(home_url("/{$search_base}/" . urlencode(get_query_var('s'))));
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exit();
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}
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}
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add_action('template_redirect', 'roots_nice_search_redirect');
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/**
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* Fix for empty search queries redirecting to home page
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*
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* @link http://wordpress.org/support/topic/blank-search-sends-you-to-the-homepage#post-1772565
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* @link http://core.trac.wordpress.org/ticket/11330
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*/
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function roots_request_filter($query_vars) {
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if (isset($_GET['s']) && empty($_GET['s'])) {
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$query_vars['s'] = ' ';
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}
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return $query_vars;
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}
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add_filter('request', 'roots_request_filter');
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|
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/**
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* Tell WordPress to use searchform.php from the templates/ directory
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|
*/
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function roots_get_search_form() {
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locate_template('/templates/searchform.php', true, true);
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|
}
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add_filter('get_search_form', 'roots_get_search_form');
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