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<?php
class WPG_Shortcodes Extends WPG{
public function __construct() {
// Shortcode
add_shortcode( 'glossary', array(&$this, 'glossary') );
// Help functions..
add_action( 'save_post', array(&$this, 'save_post_check_for_glossary_usage'), 10, 2 );
add_action( 'get_header', array(&$this, 'glossary_usage_reset_for_post') );
add_action( 'wp_footer', array(&$this, 'glossary_remove_update_marker') );
}
/**
* If post has glossary shortcode in it when it is saved, mark the post as needing be updated
*/
public function save_post_check_for_glossary_usage( $post_id, $post ){
$glossary_options = get_option( 'wp_glossary' );
$termusage = isset($glossary_options['termusage'] ) ? $glossary_options['termusage'] : 'on';
if( $termusage != 'on' )
return $post_id;
if( !wp_is_post_revision($post_id) ):
if( strpos($post->post_content,'[glossary ') !== false || strpos($post->post_content,'[glossary]') !== false ):
update_post_meta( $post_id, 'wpg_update_term_usage', current_time('mysql') );
else :
if(get_post_meta( $post_id, 'wpg_has_terms', $single=true) ):
// Also posts that used to have terms should be updated.
delete_post_meta( $post_id, 'wpg_has_terms' );
update_post_meta( $post_id, 'wpg_update_term_usage', current_time('mysql') );
endif;
endif;
endif;
}
/**
* If current post (or page or whatever) has been marked as needing updating,
* then delete all the meta entries for this post.
* These are stored on the glossary term meta
*/
public function glossary_usage_reset_for_post(){
global $post;
if( is_singular() && get_post_meta( $post->ID, 'wpg_update_term_usage') ):
// Find all glossary terms that have this post noted.
$args = array(
'post_type' => 'glossary',
'numberposts' => -1,
'post_status' => 'publish',
'meta_query' => array( array(
'key' => 'wpg_term_used',
'value' => $post->ID,
'type' => 'DECIMAL'
) )
);
$terms = get_posts( $args );
foreach( $terms as $term ):
// Delete the meta entry
delete_post_meta( $term->ID, 'wpg_term_used', $post->ID );
endforeach;
endif;
}
/** */
public function glossary_remove_update_marker(){
global $post;
if( is_singular() && get_post_meta( $post->ID, 'wpg_update_term_usage') ):
delete_post_meta( $post->ID, 'wpg_update_term_usage' );
endif;
}
/** */
public function glossary( $atts, $content='' ){
global $wpdb, $tcb_wpg_scripts, $wpg_glossary_count, $post, $wpg_doing_shortcode;
$wpg_glossary_count++;
// Get WP Glossary options
$glossary_options = get_option( 'wp_glossary', array() );
// JS data to pass through to jQuery libraries
$jsdata = array();
// Let shortcode attributes override general settings
foreach( $glossary_options as $k => $v ):
if( isset($atts[$k]) ):
$jsdata[] = 'data-' . $k . '="' . trim( esc_attr($atts[$k]) ) . '"';
$glossary_options[$k] = trim( $atts[$k] );
endif;
endforeach;
$tooltip_option = isset($glossary_options['tooltips']) ? $glossary_options['tooltips'] : 'excerpt';
$qtipstyle = isset($glossary_options['qtipstyle']) ? $glossary_options['qtipstyle'] : 'cream';
$linkopt = isset($glossary_options['termlinkopt']) ? $glossary_options['termlinkopt'] : 'standard';
$termusage = isset($glossary_options['termusage'] ) ? $glossary_options['termusage'] : 'on';
extract( shortcode_atts( array(
'id' => 0,
'slug' => '',
'text' => '',
), $atts) );
// Set text to default to content. This allows syntax like: [glossary]Cheddar[/glossary]
if( empty($text) ) $text = $content;
$glossary = false;
// Find the term in the database
if( !empty($id) ):
$glossary = get_post( $id );
else :
if( empty($slug) ):
if( empty($text) ):
// No id, slug or text available to identify a glossary term, so return the original content.
return $content;
endif;
$slug = sanitize_title( $text );
endif;
$slug = strtolower($slug);
$sqlstring = "SELECT ID FROM {$wpdb->posts} WHERE post_name='%s' AND post_type='glossary' AND post_status='publish' LIMIT 1";
$id = $wpdb->get_var( $wpdb->prepare($sqlstring, $slug) );
if( $id ):
$glossary = get_post( $id );
endif;
endif;
if( empty($glossary) ) return $text; // No glossary term found. Return the original text.
// Term Usage
if( $termusage && $termusage == 'on' && !$wpg_doing_shortcode ):
if( get_post_meta( $post->ID, 'wpg_update_term_usage') ):
if( !in_array($post->ID, get_post_meta($glossary->ID, 'wpg_term_used')) ):
// Note this post against the glossary
add_post_meta( $glossary->ID, 'wpg_term_used', $post->ID );
// Note this post/page has glossary terms
update_post_meta( $post->ID, 'wpg_has_terms', current_time('mysql') );
endif;
endif;
endif;
// Get the term title, and use as default text to use for the shortcode
$title = get_the_title( $glossary->ID );
if( empty($text) )
$text = $title;
$link = $text; // Set to just plain text (used if 'none' linkopt set in settings)
if( $linkopt != 'none' ):
$href = apply_filters( 'wpg_term_link', get_post_permalink($glossary->ID) );
$target = ($linkopt == 'blank') ? 'target="_blank"' : '';
$link = '<a href="' . $href . '" ' . $target . ' title="' . esc_attr($title) . '">' . $text . '</a>';
endif;
$span = '<span class="wp-glossary">' . $link . '</span>'; // Trivial default when tooltips switched off.
if( $tooltip_option != 'off' ):
// Global variable that tells WP to print related js files.
$tcb_wpg_scripts = true;
// qtip jquery data
$jsdata[] = 'data-termid="' . $glossary->ID . '"';
$jsdata[] = 'data-content="' . $tooltip_option . '"';
$jsdata[] = 'data-qtipstyle="' . $qtipstyle . '"';
// Span that qtip finds
$span = '<span class="wp-glossary wpg-tooltip" '.implode(' ',$jsdata).'>' . $link . '</span>';
endif;
return $span;
}
}