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<?php |
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/** |
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* Create an output buffer to capture the HTML content of the footer.php theme |
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* template. Used to change links, text, run a/b tests. Etc. |
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* |
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* @param string $page The HTML content from footer.php template file. |
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* @return string $page HTML content. |
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*/ |
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function wpcom_better_footer_links_buffer( $page ) { |
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// Only add theme and colophon links for pub and premium themes, and VIP "partner" themes. |
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if ( ! wpcom_is_pub_theme() && ! wpcom_is_premium_theme() && ! wpcom_is_vip_theme() && ! wpcom_is_a8c_theme() ) { |
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return $page; |
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} |
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// Would like to only see footer content before wp_footer output. |
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$output = preg_split( '/wpcom_wp_footer/i', $page, 2 ); |
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// Run "better link" filters. |
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$footer = wpcom_better_footer_links( $output[0] ); |
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// Piece back together again. |
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$page = implode( array( $footer, 'wpcom_wp_footer' . $output[1] ) ); |
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// If nothing to join, return empty string. |
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if ( 'wpcom_wp_footer' === $page ) { |
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return ''; |
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} |
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// Replace any dangling references of glue code. |
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$page = preg_replace( '/wpcom_wp_footer/i', '', $page ); |
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return $page; |
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} |
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/** |
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* Better WP.com footer links. |
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* |
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* 1. Replace default "Powered by WordPress" text and link with |
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* a link to WordPress.com and custom call-out text. |
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* |
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* 2. Replace theme name in footer with a link to relevant theme page on the Theme Showcase. |
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* URL structure: http://theme.wordpress.com/themes/{theme-slug}/ |
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* |
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* 3. Link to the Vertical landing page for sites that are stickered with a vertical. |
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* |
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* @param string $footer Footer HTML content to filter. |
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* @return string $footer Filtered HTML content. |
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*/ |
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function wpcom_better_footer_links( $footer ) { |
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// Only add theme and colophon links for pub and premium themes, and VIP "partner" themes. |
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if ( ! wpcom_is_pub_theme() && ! wpcom_is_premium_theme() && ! wpcom_is_vip_theme() && ! wpcom_is_a8c_theme() ) { |
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return $footer; |
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} |
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// Get current theme data. |
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$theme = wp_get_theme(); |
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// Replace separator from content, since we are replacing theme and designer credits. |
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// Any span separator with a .sep class will be matched and replaced by the regular expression. |
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$footer = preg_replace("/\s\|\s(?=\<a)|\<span class=\"([^\"]+\s)?sep(\s[^\"]+)?\">.*<\/span>/i", '', $footer); |
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// Handle WP.com footer text. |
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$lang = get_bloginfo( 'language' ); |
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$_blog_id = get_current_blog_id(); |
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$vertical = site_vertical( $_blog_id ); |
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$noads = defined( 'NOADVERTS' ) || defined( 'NOADSUPGRADE' ); |
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if ( $vertical ) { |
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if ( $noads ) { |
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$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/' . $vertical . '/?ref=vertical_footer', $lang ), __( 'Blog at WordPress.com' ) ); |
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} else { |
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$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/' . $vertical . '/?ref=vertical_footer', $lang ), __( 'Create a free website at WordPress.com' ) ); |
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} |
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} else if ( $noads || mt_rand( 0, 1 ) ) { |
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$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/?ref=footer_blog', $lang ), __( 'Blog at WordPress.com' ) ); |
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} else { |
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$credit_link = sprintf( '<a href="%s">%s.</a>', localized_wpcom_url( 'https://wordpress.com/?ref=footer_website', $lang ), __( 'Create a free website or blog at WordPress.com' ) ); |
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} |
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// Replace credit link in footer, and make sure it is replaced only once, to avoid duplicates. |
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$credit_link = apply_filters( 'wpcom_better_footer_credit_link', $credit_link, $lang ); |
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// The regular expression to match the credit link replacement. |
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$credit_regex = implode( '', array( |
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'#' , // Open delimiter |
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'<a[^>]*href="http(s?)://(([a-z]{2}|www)\.)?(wordpress|wordpress-fr|wpfr)\.(com|org|net)/?"([^>]+)?>' , // Opening link tag |
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'\s*' , // Optional whitespace |
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'(.+?)' , // Any word or sentence |
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'\s*' , // Optional whitespace |
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'</a>' , // Closing link tag |
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'\.?' , // Optional period |
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'(\s*&[^;]+;\s*)?' , // Optional HTML Entity |
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'#i' , // Ending delimiter & modifier |
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) ); |
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// Add filter for specific themes that may need to tweak the regex a bit. |
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$credit_regex = apply_filters( 'wpcom_better_footer_credit_regex', $credit_regex, $theme ); |
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// Get the full matches of the credit regular expression, proceed if match. |
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if ( preg_match_all( $credit_regex, $footer, $matches, PREG_OFFSET_CAPTURE ) ) { |
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// Get last match and offset. |
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$match = array_pop( $matches[0] ); |
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$offset = $match[1]; |
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// Split the content into two parts, which we will join later on. |
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$before = substr( $footer, 0, $offset ); |
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$after = substr( $footer, $offset ); |
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// Replace on the last part. Ensure we only do one replacement to avoid duplicates. |
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$after = preg_replace( $credit_regex, $credit_link, $after, 1 ); |
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// Join the two parts. |
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$footer = $before . $after; |
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} |
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// Themes that have duplicate footer credit links (e.g. "Powered by WordPress.com" + another credit link). |
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$powered_by_themes = array( |
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'pub/toujours', |
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); |
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// Remove "Proudly powered by WordPress" on selected themes. |
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if ( in_array( $theme->stylesheet, $powered_by_themes ) ) { |
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$powered_string = preg_quote( __( 'Proudly powered by WordPress' ), '#' ); |
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$powered_regex = sprintf( '#<a[^>]*href="http(s?)://(([a-z]{2}|www)\.)?wordpress\.(com|org)/?"([^>]+)?>%s</a>\.?#i', $powered_string ); |
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$footer = preg_replace( $powered_regex, '', $footer ); |
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} |
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// Only add theme and colophon link for pub and premium themes. |
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if ( wpcom_is_vip_theme() ) { |
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return $footer; |
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} |
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// Handle adding Theme Name and colophon link to footer text. |
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$theme_match = sprintf( |
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'(?:\s*\|\s*)?' . // Optional pipe with spaces (non-capturing) |
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'(?:<span\s[^>]+>)?' . // Optional opening span tag (non-capturing) |
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'(Theme|%s)' . // $1: "Theme" or the localized equivalent |
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'\s*(?: )?:\s*' . // Zero or more whitespace characters, a colon, zero or more whitespace characters |
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'(%s|<a[^>]+>%s</a>)' . // $2: The theme name, or link |
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'\.?' . // Optional period |
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'(?:</span>)?' . // Optional closing span tag (non-capturing) |
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'\.?' // Optional period |
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, preg_quote( __( 'Theme' ), '#' ) |
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, preg_quote( $theme->name, '#' ) |
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, preg_quote( $theme->name, '#' ) |
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); |
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// Theme designer match. |
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$designer_match = $theme_match . sprintf( |
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'(' . // Start $3 |
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'\s*' . // Zero or more whitespace characters |
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'(?:<span\s[^>]+>)?' . // Optional opening span tag (non-capturing) |
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'(?:by|%s)' . // "by" or the localized equivalent (non-capturing) |
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'(?:</span>)?' . // Optional closing span tag (non-capturing) |
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'\s*' . // Zero or more whitespace characters |
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'(<a[^>]+>.+?</a>)?' . // $4: Maybe a full <a> element |
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')' . // End $3 |
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'\.?' // Optional period |
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, preg_quote( __( 'by' ), '#' ) // localized "by" preposition |
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); |
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// Match "Design by <shop>". |
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$design_by = preg_quote( $credit_link, '#' ) . sprintf( |
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'\.?' . // Optional period |
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'\s*' . // Optional whitespace |
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'(Design by|%s)' . // "Design by" or localized equivalent |
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'\s*' . // Optional whitespace |
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'(<a[^>]+>.+?</a>)' . // Full link element |
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'\.?' // Optional period |
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, preg_quote( __( 'Design by' ), '#' ) |
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); |
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if ( preg_match( "#$designer_match#i", $footer ) ) { |
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$footer = preg_replace( "#$designer_match#i", '', $footer, 1 ); |
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} |
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if ( preg_match( "#$theme_match#i", $footer ) ) { |
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$footer = preg_replace( "#$theme_match#i", '', $footer, 1 ); |
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} |
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if ( preg_match( "#$design_by#i", $footer ) ) { |
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$footer = preg_replace( "#$design_by#i", $credit_link, $footer, 1 ); |
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} |
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return $footer; |
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} |
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// Enable filters for footer content for all themes, except VIP sites. |
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function better_wpcom_link_init() { |
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if ( ! wpcom_is_vip() ) |
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ob_start( 'wpcom_better_footer_links_buffer' ); |
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} |
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add_action( 'get_footer', 'better_wpcom_link_init' ); |
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// Enable filters on those themes that need special treatment. |
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function better_wpcom_link_workarounds_init() { |
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if ( function_exists( 'blogly_widgets_init' ) && 'premium/blogly' === wp_get_theme()->stylesheet ) { |
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add_action( 'get_sidebar', 'better_wpcom_link_init' ); |
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} |
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if ( function_exists( 'designer_widgets_init' ) && 'premium/designer' === wp_get_theme()->stylesheet ) { |
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add_action( 'get_header', 'better_wpcom_link_init' ); |
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} |
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} |
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add_action( 'init', 'better_wpcom_link_workarounds_init' ); |
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// Enable filters Infinite Scroll footer conntent, except VIP sites. |
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//if ( ! wpcom_is_vip() ) { |
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add_filter( 'infinite_scroll_credit', 'wpcom_better_footer_links' ); |
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//} |
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/** |
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* Filters the default footer credits regex. |
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* |
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* @param string $credit_regex The regular expression for the footer credit. |
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* @param object $theme The object returned by `wp_get_theme()` |
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* @return string |
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*/ |
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function wpcom_better_footer_credit_regex_filter( $credit_regex, $theme ) { |
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// Twotone renders the social menu after the credit links. If there is a WordPress.com link in the menu, |
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// it will break the footer credits. Adding a space before the actual link fixes this. |
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if ( 'premium/twotone' === $theme->stylesheet ) { |
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$credit_regex = str_replace( '#<a', '#\s<a', $credit_regex ); |
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} |
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return $credit_regex; |
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} |
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add_filter( 'wpcom_better_footer_credit_regex', 'wpcom_better_footer_credit_regex_filter', 10, 2 ); |
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/** |
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* Add an HTML comment flag for wp_footer output so that our footer replacement |
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* script knows when to stop looking for more footer content. |
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*/ |
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function wpcom_footer_html_comment_flag() { |
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echo "<!-- wpcom_wp_footer -->\n"; |
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} |
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add_action( 'wp_footer', 'wpcom_footer_html_comment_flag', 9 ); |
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/** |
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* Add theme name to Twenty Ten footer |
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*/ |
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function wpcomthemes_twentyten_credits() { |
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echo 'Theme: Twenty Ten'; // leave untranslated for regex match, will be translated in final output |
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} |
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add_action( 'twentyten_credits', 'wpcomthemes_twentyten_credits' ); |
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/** |
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* Add theme name to Twenty Eleven footer |
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*/ |
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function wpcomthemes_twentyeleven_credits() { |
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echo 'Theme: Twenty Eleven <span class="sep"> | </span>'; // leave untranslated for regex match, will be translated in final output |
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} |
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add_action( 'twentyeleven_credits', 'wpcomthemes_twentyeleven_credits' ); |
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/** |
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* Add theme name to Twenty Twelve footer |
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*/ |
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function wpcomthemes_twentytwelve_credits() { |
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echo 'Theme: Twenty Twelve.'; // leave untranslated for regex match, will be translated in final output |
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} |
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add_action( 'twentytwelve_credits', 'wpcomthemes_twentytwelve_credits' ); |
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/** |
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* Add theme name to Twenty Thirteen footer |
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*/ |
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function wpcomthemes_twentythirteen_credits() { |
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echo 'Theme: Twenty Thirteen.'; // leave untranslated for regex match, will be translated in final output |
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} |
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add_action( 'twentythirteen_credits', 'wpcomthemes_twentythirteen_credits' ); |
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/** |
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* Add theme name to Twenty Fourteen footer |
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*/ |
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function wpcomthemes_twentyfourteen_credits() { |
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echo 'Theme: Twenty Fourteen.'; // leave untranslated for regex match, will be translated in final output |
|
281
|
|
|
} |
|
282
|
|
|
add_action( 'twentyfourteen_credits', 'wpcomthemes_twentyfourteen_credits' ); |
|
283
|
|
|
|
|
284
|
|
|
/** |
|
285
|
|
|
* Add theme name to Twenty Fifteen footer |
|
286
|
|
|
*/ |
|
287
|
|
|
function wpcomthemes_twentyfifteen_credits() { |
|
288
|
|
|
echo 'Theme: Twenty Fifteen.'; // leave untranslated for regex match, will be translated in final output |
|
289
|
|
|
} |
|
290
|
|
|
add_action( 'twentyfifteen_credits', 'wpcomthemes_twentyfifteen_credits' ); |
|
291
|
|
|
|
|
292
|
|
|
/** |
|
293
|
|
|
* Add theme name to Twenty Sixteen footer |
|
294
|
|
|
*/ |
|
295
|
|
|
function wpcomthemes_twentysixteen_credits() { |
|
296
|
|
|
echo 'Theme: Twenty Sixteen.'; // leave untranslated for regex match, will be translated in final output |
|
297
|
|
|
} |
|
298
|
|
|
add_action( 'twentysixteen_credits', 'wpcomthemes_twentysixteen_credits' ); |
|
299
|
|
|
|
|
300
|
|
|
|
Automattic /
jetpack
