<?php
/**
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     FFTiger <fftiger@wikisquare.com>, myst6re <myst6re@wikisquare.com>
 */

if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');

class syntax_plugin_imagebox extends DokuWiki_Syntax_Plugin {

	function getType(){ return 'protected'; }
	function getAllowedTypes() { return array('substition','protected','disabled','formatting'); }
	function getSort(){ return 315; }
	function getPType(){ return 'block'; }
	function connectTo($mode) {	$this->Lexer->addEntryPattern('\[\{\{[^\|\}]+\|*(?=[^\}]*\}\}\])',$mode,'plugin_imagebox'); }
	function postConnect() { $this->Lexer->addExitPattern('\}\}\]','plugin_imagebox'); }

	function handle($match, $state, $pos, Doku_Handler $handler){
		switch($state){
			case DOKU_LEXER_ENTER:
				$match=Doku_Handler_Parse_Media(substr($match,3));

                $dispMagnify = ($match['width'] || $match['height']) && $this->getConf('display_magnify')=='If necessary' || $this->getConf('display_magnify')=='Always';

				$image_size = false;

                $result = explode('#',$match['src'],2);
                if (isset($result[0])){
                    $src = $result[0];
                }
                if(isset($result[1])){
                    $hash = $result[1];
                }

                if(!empty($src)) {
                    if ($match['type'] == 'internalmedia') {
                        global $ID;
                        $exists = false;
                        resolve_mediaid(getNS($ID), $src, $exists);

                        if ($dispMagnify) {
                            $match['detail'] = ml($src, array('id' => $ID, 'cache' => $match['cache']), ($match['linking'] == 'direct'));
                            if (isset($hash)) $match['detail'] .= '#' . $hash;
                        }

                        if ($exists){
                            $image_size = @getImageSize(mediaFN($src));
                            if(function_exists('mime_content_type')) {
                                $mime_type = explode('/', mime_content_type(mediaFN($src)), 2);
                            }
                        }
                    } else {
                        if ($dispMagnify) {
                            $match['detail'] = ml($src, array('cache' => 'cache'), false);
                            if (isset($hash)) $match['detail'] .= '#' . $hash;
                        }

                        $image_size = @getImageSize($src);
                        if(function_exists('mime_content_type')) {
                            $mime_type = explode('/', mime_content_type($src), 2);
                        }
                    }
                }

				$match['exist'] = ($image_size!==false || (isset($mime_type[0]) && $mime_type[0] == "image")) ;

                if($match['exist']){
                    if(is_null($match['width']) && is_null($match['height'])) {
                        $match['width'] = $image_size[0];
                        $match['height'] = $image_size[1];
                    }else {
                        if (is_null($match['width'])) {
                            $match['width'] = round($match['height'] * $image_size[0] / $image_size[1]);
                        }
                        if (is_null($match['height'])) {
                            $match['height'] = round($match['width'] * $image_size[1] / $image_size[0]);
                        }
                    }
                }

				if(!$match['align'] /*|| $match['align']=='center'*/&&!$this->getConf('center_align'))
					$match['align'] = 'rien';
			return array($state,$match);

			case DOKU_LEXER_UNMATCHED:
			return array($state,$match);

			case DOKU_LEXER_EXIT:
			return array($state,$match);
		}
	}

	function render($mode, Doku_Renderer $renderer, $data){
		global $ID;

        if($mode == 'metadata'){
			list($state, $match) = $data;

			switch($state){
				case DOKU_LEXER_ENTER:
					list ($src) = explode('#', $match['src'], 2);

					// Use dokuwiki image metadata renderer
					if(media_isexternal($src)) {
						$renderer->externalmedia($src, $match['title']);
					} else {
						resolve_mediaid(getNS($ID), $src, $exists);
						$renderer->internalmedia($src, $match['title']);

						// Clear previous persistent data
						if (isset($renderer->persistent['relation']['media'][$src])) {
							unset($renderer->persistent['relation']['media'][$src]);
						}
					}

            }
        }


		if($mode == 'xhtml'){
			list($state,$match) = $data;

			switch($state){
				case DOKU_LEXER_ENTER:
					$renderer->doc.= '<div class="thumb2 t'.$match['align'].'"><div class="thumbinner">';
					if($match['exist'])
						$renderer->{$match['type']}($match['src'],$match['title'],'box2',$match['width'],$match['height'],$match['cache'],$match['linking']);
					else
						$renderer->doc.= 'Invalid Link';
					$renderer->doc.= '<div class="thumbcaption" style="max-width: '.($match['width']-6).'px">';
					if(isset($match['detail'])) {
						$renderer->doc.= '<div class="magnify">';
						$renderer->doc.= '<a class="internal" title="'.$this->getLang('enlarge').'" href="'.$match['detail'].'" target="_blank">';
						$renderer->doc.= '<img width="15" height="11" alt="" src="'.DOKU_BASE.'lib/plugins/imagebox/magnify-clip.png"/>';
						$renderer->doc.= '</a></div>';
					}
				break;

				case DOKU_LEXER_UNMATCHED:
					$style=$this->getConf('default_caption_style');
					if($style=='Italic')	$renderer->doc .= '<em>'.$renderer->_xmlEntities($match).'</em>';
					elseif($style=='Bold')	$renderer->doc .= '<strong>'.$renderer->_xmlEntities($match).'</strong>';
					else 					$renderer->doc .= $renderer->_xmlEntities($match);
				break;

				case DOKU_LEXER_EXIT:
					$renderer->doc.= '</div></div></div>';
				break;
			}
			return true;
		}
		return false;
	}
}

//Setup VIM: ex: et ts=4 enc=utf-8 :