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<?php |
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defined('WPINC') OR exit; |
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|
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/* |
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Plugin Name: Document Gallery |
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Plugin URI: http://wordpress.org/extend/plugins/document-gallery/ |
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Description: Display non-images (and images) in gallery format on a page or post with the [dg] shortcode. |
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Version: 2.0.4 |
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Author: Dan Rossiter |
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Author URI: http://danrossiter.org/ |
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License: GPLv2 |
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Text Domain: document-gallery |
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*/ |
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|
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// define helper paths & URLs |
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define('DG_VERSION', '2.0.4'); |
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define('DG_URL', plugin_dir_url(__FILE__)); |
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define('DG_PATH', plugin_dir_path(__FILE__)); |
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if(!defined('WP_INCLUDE_DIR')) { |
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define('WP_INCLUDE_DIR', preg_replace('/wp-content$/', 'wp-includes', WP_CONTENT_DIR)); |
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} |
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if(!defined('WP_ADMIN_DIR')) { |
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define('WP_ADMIN_DIR', preg_replace('/wp-content$/', 'wp-admin', WP_CONTENT_DIR)); |
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} |
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|
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// init DG options for use throughout plugin |
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global $dg_options; |
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define('DG_OPTION_NAME', 'document_gallery'); |
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$dg_options = get_option(DG_OPTION_NAME, null); |
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|
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// handle activation and uninstallation |
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include_once DG_PATH . 'inc/class-setup.php'; |
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DG_Setup::maybeUpdate(); |
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register_uninstall_hook(__FILE__, array('DG_Setup', 'uninstall')); |
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|
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// I18n |
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add_action('plugins_loaded', array('DocumentGallery', 'loadTextDomain')); |
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|
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// cleanup cached data when thumbed attachment deleted |
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include_once DG_PATH . 'inc/class-thumber.php'; |
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add_action('delete_attachment', array('DG_Thumber', 'deleteThumbMeta')); |
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|
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if (is_admin()) { |
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// admin house keeping |
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include_once DG_PATH . 'admin/class-admin.php'; |
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|
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// add settings link |
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add_filter('plugin_action_links_' . plugin_basename(__FILE__), |
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array('DG_Admin', 'addSettingsLink')); |
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|
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// build options page |
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add_action('admin_menu', array('DG_Admin', 'addAdminPage')); |
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if (!empty($GLOBALS['pagenow']) |
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&& ('options-general.php' === $GLOBALS['pagenow'] // output |
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|| 'options.php' === $GLOBALS['pagenow'])) { // validation |
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add_action('admin_init', array('DG_Admin', 'registerSettings')); |
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} |
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} else { |
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// styling for gallery |
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if (empty($dg_options['css']['text'])) { |
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add_action('wp_enqueue_scripts', array('DocumentGallery', 'enqueueGalleryStyle')); |
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} else { |
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add_action('template_redirect', array('DocumentGallery', 'buildCustomCss')); |
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add_action('wp_enqueue_scripts', array('DocumentGallery', 'enqueueCustomStyle')); |
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add_filter('query_vars', array('DocumentGallery', 'addCustomStyleQueryVar')); |
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} |
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} |
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|
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// adds 'dg' shortcode |
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add_shortcode('dg', array('DocumentGallery', 'doShortcode')); |
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|
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/** |
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* DocumentGallery wraps basic functionality to setup the plugin. |
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* |
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* @author drossiter |
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*/ |
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class DocumentGallery { |
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|
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/** |
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* @var str Name of the query var used to check whether we should print custom CSS. |
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*/ |
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private static $query_var = 'document-gallery-css'; |
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|
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/*========================================================================== |
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* THE SHORTCODE |
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*=========================================================================*/ |
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|
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/** |
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* Takes values passed from attributes and returns sutable HTML to represent |
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* all valid attachments requested. |
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* |
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* @param array $atts Arguments from the user. |
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* @return string HTML for the Document Gallery. |
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*/ |
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public static function doShortcode($atts) { |
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include_once 'inc/class-gallery.php'; |
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|
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$start = microtime(true); |
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$gallery = (string)new DG_Gallery($atts); |
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DocumentGallery::writeLog('Generation Time: ' . (microtime(true) - $start) . ' s'); |
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|
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return $gallery; |
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} |
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|
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/** |
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* Enqueue standard DG CSS. |
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*/ |
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public static function enqueueGalleryStyle() { |
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wp_register_style('document-gallery', DG_URL . 'assets/css/style.css', null, DG_VERSION); |
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wp_enqueue_style('document-gallery'); |
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} |
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|
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/** |
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* Enqueue user's custom DG CSS. |
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*/ |
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public static function enqueueCustomStyle() { |
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global $dg_options; |
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wp_register_style('document-gallery', add_query_arg(self::$query_var, 1, home_url('/')), |
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null, DG_VERSION . ':' . $dg_options['css']['version']); |
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wp_enqueue_style('document-gallery'); |
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} |
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|
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/** |
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* Add query custom CSS query string. |
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* Taken from here: http://ottopress.com/2010/dont-include-wp-load-please/ |
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* @param array $vars |
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* @return array |
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*/ |
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public static function addCustomStyleQueryVar($vars) { |
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$vars[] = self::$query_var; |
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return $vars; |
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} |
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|
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/** |
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* Constructs user's custom CSS dynamically, then instructs |
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* browser to cache for a year. Cache is busted by versioning |
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* CSS any time the user makes a change. |
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*/ |
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public static function buildCustomCss() { |
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if (1 == intval(get_query_var(self::$query_var))) { |
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global $dg_options; |
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|
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header('Content-type: text/css'); |
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header('Cache-Control: no-transform,public,maxage=' . 31536000); |
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header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 31536000) . ' GMT'); |
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header('Last-Modified: ' . $dg_options['css']['last-modified']); |
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header('ETag: ' . $dg_options['css']['etag']); |
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|
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echo $dg_options['css']['minified']; |
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exit; |
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} |
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} |
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|
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/*========================================================================== |
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* Logging |
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*=========================================================================*/ |
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|
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/** |
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* Appends error log with $entry if WordPress is in debug mode. |
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* |
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* @param str $entry |
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*/ |
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public static function writeLog($entry) { |
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if (defined('WP_DEBUG') && WP_DEBUG) { |
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$err = 'DG: ' . print_r($entry, true) . PHP_EOL; |
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if (defined('ERRORLOGFILE')) { |
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error_log($err, 3, ERRORLOGFILE); |
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} else { |
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error_log($err); |
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} |
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} |
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} |
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|
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/*========================================================================== |
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* I18n |
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*=========================================================================*/ |
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|
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public static function loadTextDomain() { |
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load_plugin_textdomain('document-gallery', false, dirname(plugin_basename(__FILE__ )) . '/languages/'); |
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} |
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|
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/*========================================================================== |
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* HELPER FUNCTIONS |
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*=========================================================================*/ |
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|
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/** |
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* Compiles any custom CSS plus the default CSS together, |
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* minifying in the process. |
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* @param str $custom The custom CSS to compile. |
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* @return str Compiled CSS, including both standard and any custom. |
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*/ |
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public static function compileCustomCss($custom) { |
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$css = file_get_contents(DG_PATH . 'assets/css/style.css'); |
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$css .= str_replace('>', '>', esc_html($custom)); |
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|
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return self::minifyCss($css); |
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} |
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|
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/** |
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* Removes all comments & space from CSS string. |
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* Source: http://stackoverflow.com/a/15195752/866618 |
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*/ |
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private static function minifyCss($css) { |
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# remove comments first (simplifies the other regex) |
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$re1 = <<<EOS |
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(?sx) |
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# quotes |
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( |
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"(?:[^"\\]++|\\.)*+" |
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| '(?:[^'\\]++|\\.)*+' |
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) |
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| |
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# comments |
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/\* (?> .*? \*/ ) |
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EOS; |
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|
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$re2 = <<<EOS |
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(?six) |
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# quotes |
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( |
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"(?:[^"\\]++|\\.)*+" |
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| '(?:[^'\\]++|\\.)*+' |
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) |
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| |
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# ; before } (and the spaces after it while we're here) |
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\s*+ ; \s*+ ( } ) \s*+ |
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| |
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# all spaces around meta chars/operators |
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\s*+ ( [*$~^|]?+= | [{};,>~+-] | !important\b ) \s*+ |
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| |
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# spaces right of ( [ : |
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( [[(:] ) \s++ |
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| |
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# spaces left of ) ] |
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\s++ ( [])] ) |
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| |
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# spaces left (and right) of : |
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\s++ ( : ) \s*+ |
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# but not in selectors: not followed by a { |
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(?! |
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(?> |
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[^{}"']++ |
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| "(?:[^"\\]++|\\.)*+" |
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| '(?:[^'\\]++|\\.)*+' |
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)*+ |
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{ |
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) |
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| |
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# spaces at beginning/end of string |
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^ \s++ | \s++ \z |
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| |
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# double spaces to single |
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(\s)\s+ |
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EOS; |
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|
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$css = preg_replace("%$re1%", '$1', $css); |
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return preg_replace("%$re2%", '$1$2$3$4$5$6$7', $css); |
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} |
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|
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/** |
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* Blocks instantiation. All functions are static. |
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*/ |
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private function __construct() { |
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|
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} |
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} |
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|
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?> |
