/**
* Draws an individual canvas given a specific location
* id and app. The app isn't strictly necessary, but is
* being kept for now for backwards compatability.
* This method was private, but was made public to be accessed
* by the shortcode static function in global_functions.php.
*
* @param string $id the location id for configuration
* @param string $app the type of app
* @param string $title the title of URL
* @param string $link url
* @param string $summary summary text for URL
*/
public static function canvas($id, $app, $title = NULL, $link = NULL, $summary = NULL)
{
global $post, $wp_query;
$page_type = ShareaholicUtilities::page_type();
$is_list_page = $page_type == 'index' || $page_type == 'category';
$loop_start = did_action('loop_start');
$loop_end = did_action('loop_end');
$in_loop = $loop_start > $loop_end ? TRUE : FALSE;
$link = trim($link);
// Use the $post object to get the title, link, and summary only if the
// title, link or summary is not provided AND one of the following is true:
// - we are on a non list page
// - we are in the wordpress loop
if (trim($title) == NULL && (!$is_list_page || $in_loop)) {
$title = htmlspecialchars($post->post_title, ENT_QUOTES);
}
if (trim($link) == NULL && (!$is_list_page || $in_loop)) {
$link = get_permalink($post->ID);
}
if (trim($summary) == NULL && (!$is_list_page || $in_loop)) {
$summary = htmlspecialchars(strip_tags(strip_shortcodes($post->post_excerpt)), ENT_QUOTES);
$summary = ShareaholicUtilities::truncate_text($summary, 500);
}
$canvas = "<div class='shareaholic-canvas'\n data-app-id='{$id}'\n data-app='{$app}'\n data-title='{$title}'\n data-link='{$link}'\n data-summary='{$summary}'></div>";
return trim(preg_replace('/\\s+/', ' ', $canvas));
}