/plugins/nextgen-gallery/lib/shortcodes.php

<?php

/**

 * @author Alex Rabe, Vincent Prat 

 * @copyright 2008

 * @since 1.0.0

 * @description Use WordPress Shortcode API for more features

 * @Docs http://codex.wordpress.org/Shortcode_API

 */



class NextGEN_shortcodes {

	

	// register the new shortcodes

	function NextGEN_shortcodes() {

	

		// convert the old shortcode

		add_filter('the_content', array(&$this, 'convert_shortcode'));

		

		// do_shortcode on the_excerpt could causes several unwanted output. Uncomment it on your own risk

		// add_filter('the_excerpt', array(&$this, 'convert_shortcode'));

		// add_filter('the_excerpt', 'do_shortcode', 11);

		

		add_shortcode( 'singlepic', array(&$this, 'show_singlepic' ) );

		add_shortcode( 'album', array(&$this, 'show_album' ) );

		add_shortcode( 'nggallery', array(&$this, 'show_gallery') );

		add_shortcode( 'imagebrowser', array(&$this, 'show_imagebrowser' ) );

		add_shortcode( 'slideshow', array(&$this, 'show_slideshow' ) );

		add_shortcode( 'nggtags', array(&$this, 'show_tags' ) );

		add_shortcode( 'thumb', array(&$this, 'show_thumbs' ));

	}



	 /**

	   * NextGEN_shortcodes::convert_shortcode()

	   * convert old shortcodes to the new WordPress core style

	   * [gallery=1]  ->> [nggallery id=1]

	   * 

	   * @param string $content Content to search for shortcodes

	   * @return string Content with new shortcodes.

	   */

	function convert_shortcode($content) {

		

		$ngg_options = nggGallery::get_option('ngg_options');

	

		if ( stristr( $content, '[singlepic' )) {

			$search = "@\[singlepic=(\d+)(|,\d+|,)(|,\d+|,)(|,watermark|,web20|,)(|,right|,center|,left|,)\]@i";

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					// remove the comma

					$match[2] = ltrim($match[2], ',');

					$match[3] = ltrim($match[3], ',');	

					$match[4] = ltrim($match[4], ',');	

					$match[5] = ltrim($match[5], ',');						

					$replace = "[singlepic id=\"{$match[1]}\" w=\"{$match[2]}\" h=\"{$match[3]}\" mode=\"{$match[4]}\" float=\"{$match[5]}\" ]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}



		if ( stristr( $content, '[album' )) {

			$search = "@(?:<p>)*\s*\[album\s*=\s*(\w+|^\+)(|,extend|,compact)\]\s*(?:</p>)*@i"; 

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					// remove the comma

					$match[2] = ltrim($match[2],',');

					$replace = "[album id=\"{$match[1]}\" template=\"{$match[2]}\"]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}		



		if ( stristr( $content, '[gallery' )) {

			$search = "@(?:<p>)*\s*\[gallery\s*=\s*(\w+|^\+)\]\s*(?:</p>)*@i";

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					$replace = "[nggallery id=\"{$match[1]}\"]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}	



		if ( stristr( $content, '[imagebrowser' )) {

			$search = "@(?:<p>)*\s*\[imagebrowser\s*=\s*(\w+|^\+)\]\s*(?:</p>)*@i";

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					$replace = "[imagebrowser id=\"{$match[1]}\"]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}



		if ( stristr( $content, '[slideshow' )) {

			$search = "@(?:<p>)*\s*\[slideshow\s*=\s*(\w+|^\+)(|,(\d+)|,)(|,(\d+))\]\s*(?:</p>)*@i";

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					// remove the comma

					$match[3] = ltrim($match[3],',');

					$match[5] = ltrim($match[5],',');	

					$replace = "[slideshow id=\"{$match[1]}\" w=\"{$match[3]}\" h=\"{$match[5]}\"]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}



		if ( stristr( $content, '[tags' )) {

			$search = "@(?:<p>)*\s*\[tags\s*=\s*(.*?)\s*\]\s*(?:</p>)*@i";

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					$replace = "[nggtags gallery=\"{$match[1]}\"]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}

		

		if ( stristr( $content, '[albumtags' )) {

			$search = "@(?:<p>)*\s*\[albumtags\s*=\s*(.*?)\s*\]\s*(?:</p>)*@i";

			if (preg_match_all($search, $content, $matches, PREG_SET_ORDER)) {



				foreach ($matches as $match) {

					$replace = "[nggtags album=\"{$match[1]}\"]";

					$content = str_replace ($match[0], $replace, $content);

				}

			}

		}



		// attach related images based on category or tags

		if ($ngg_options['activateTags']) 

			$content .= nggShowRelatedImages();

	

		return $content;

	}

	

	/**

	 * Function to show a single picture:

	 * 

	 *     [singlepic id="10" float="none|left|right" width="" height="" mode="none|watermark|web20" template="filename" /]

	 *

	 * where

	 *  - id is one picture id

	 *  - float is the CSS float property to apply to the thumbnail

	 *  - width is width of the single picture you want to show (original width if this parameter is missing)

	 *  - height is height of the single picture you want to show (original height if this parameter is missing)

	 *  - mode is one of none, watermark or web20 (transformation applied to the picture)

	 *  - template is a name for a gallery template, which is located in themefolder/nggallery or plugins/nextgen-gallery/view

	 * 

	 * If the tag contains some text, this will be inserted as an additional caption to the picture too. Example:

	 * 		[singlepic id="10"]This is an additional caption[/singlepic]

	 * This tag will show a picture with under it two HTML span elements containing respectively the alttext of the picture 

	 * and the additional caption specified in the tag. 

	 * 

	 * @param array $atts

	 * @param string $caption text

	 * @return the content

	 */

	function show_singlepic( $atts, $content = '' ) {

	

		extract(shortcode_atts(array(

			'id' 		=> 0,

			'w'		 	=> '',

			'h'		 	=> '',

			'mode'	 	=> '',

			'float'	 	=> '',

			'template' 	=> ''

		), $atts ));

	

		$out = nggSinglePicture($id, $w, $h, $mode, $float, $template, $content);

			

		return $out;

	}



	function show_album( $atts ) {

	

		extract(shortcode_atts(array(

			'id' 		=> 0,

			'template'	=> 'extend'	

		), $atts ));

		

		$out = nggShowAlbum($id, $template);

			

		return $out;

	}



	function show_gallery( $atts ) {

	

		extract(shortcode_atts(array(

			'id' 		=> 0,

			'template'	=> ''	

		), $atts ));

		

		$out = nggShowGallery( $id, $template);

			

		return $out;

	}



	function show_imagebrowser( $atts ) {

		

		global $wpdb;

	

		extract(shortcode_atts(array(

			'id' 		=> 0,

			'template'	=> ''	

		), $atts ));



		$out = nggShowImageBrowser($id, $template);

			

		return $out;

	}

	

	function show_slideshow( $atts ) {

		

		global $wpdb;

	

		extract(shortcode_atts(array(

			'id' 		=> 0,

			'w'		 	=> '',

			'h'		 	=> ''

		), $atts ));

		

		$galleryID = $wpdb->get_var("SELECT gid FROM $wpdb->nggallery WHERE gid = '$id' ");

		if(!$galleryID) $galleryID = $wpdb->get_var("SELECT gid FROM $wpdb->nggallery WHERE name = '$id' ");



		if( $galleryID )

			$out = nggShowSlideshow($galleryID, $w, $h);

		else 

			$out = __('[Gallery not found]','nggallery');

			

		return $out;

	}

	

	function show_tags( $atts ) {

	

		extract(shortcode_atts(array(

			'gallery' 		=> '',

			'album' 		=> ''

		), $atts ));

		

		if ( !empty($album) )

			$out = nggShowAlbumTags($album);

		else

			$out = nggShowGalleryTags($gallery);

		

		return $out;

	}



	/**

	 * Function to show a thumbnail or a set of thumbnails with shortcode of type:

	 * 

	 * [thumb id="1,2,4,5,..." template="filename" /]

	 * where 

	 * - id is one or more picture ids

	 * - template is a name for a gallery template, which is located in themefolder/nggallery or plugins/nextgen-gallery/view

	 * 

	 * @param array $atts

	 * @return the_content

	 */

	function show_thumbs( $atts ) {

	

		extract(shortcode_atts(array(

			'id' 		=> '',

			'template' 	=> ''

		), $atts));

		

		// make an array out of the ids

		$pids = explode( ',', $id );

		

		// Some error checks

		if ( count($pids) == 0 )

			return __('[Pictures not found]','nggallery');

		

		$picturelist = nggdb::find_images_in_list( $pids );

		

		// show gallery

		if ( is_array($picturelist) )

			$out = nggCreateGallery($picturelist, false, $template);

		

		return $out;

	}



}



// let's use it

$nggShortcodes = new NextGEN_Shortcodes;	



?>