xref: /plugin/siteexport/renderer/pdf.php (revision d32fa46ea5caeeecd7960ba574559e90a4f62427)

<?php
/**
 * Render Plugin for XHTML  without details link for internal images.
 *
 * @author     i-net software <tools@inetsoftware.de>
 * @author     Gerry Weissbach <gweissbach@inetsoftware.de>
 */

if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');

require_once DOKU_INC . 'inc/parser/xhtml.php';

/**
 * The Renderer
 */
class renderer_plugin_siteexport_pdf extends Doku_Renderer_xhtml {

    var $acronymsExchanged = null;
    var $hasSeenHeader = false;
    var $scriptmode = false;

    var $currentLevel = 0;
    var $startlevel = 0; // level to start with numbered headings (default = 2)
    var $levels = array( '======'=>1,
                         '====='=>2,
                         '===='=>3,
                         '==='=>4,
                         '=='=>5);

    var $info = array(
        'cache'      => true, // may the rendered result cached?
        'toc'        => true, // render the TOC?
        'forceTOC'   => false, // shall I force the TOC?
        'scriptmode' => false, // In scriptmode, some tags will not be encoded => '<%', '%>'
    );

    var $headingCount =
    array(  1=>0,
    2=>0,
    3=>0,
    4=>0,
    5=>0);

    /**
     * return some info
     */
    function getInfo(){
        if ( method_exists(parent, 'getInfo')) {
            $info = parent::getInfo();
        }
	    return array_merge(is_array($info) ? $info : confToHash(dirname(__FILE__).'/../plugin.info.txt'), array(

        ));
    }

    function document_start() {
        global $TOC, $ID, $INFO;

        parent::document_start();

        // Cheating in again
        $newMeta = p_get_metadata($ID, 'description tableofcontents', false); // 2010-10-23 This should be save to use
        if ( !empty( $newMeta ) && count($newMeta) > 1 ) {
            // $TOC = $this->toc = $newMeta; // 2010-08-23 doubled the TOC
            $TOC = $newMeta;
        }
    }

    function document_end() {

        parent::document_end();

        // Prepare the TOC
        global $TOC, $ID;
        $meta = array();

        // NOTOC, and no forceTOC
        if ( $this->info['toc'] === false && !($this->info['forceTOC'] || $this->meta['forceTOC']) ) {
            $TOC = $this->toc = array();
            $meta['internal']['toc'] = false;
            $meta['description']['tableofcontents'] = array();
            $meta['forceTOC'] = false;

        } else if ( $this->info['forceTOC'] || $this->meta['forceTOC'] || (utf8_strlen(strip_tags($this->doc)) >= $this->getConf('documentlengthfortoc') && count($this->toc) > 1 ) ) {
            $TOC = $this->toc;
            // This is a little bit like cheating ... but this will force the TOC into the metadata
            $meta = array();
            $meta['internal']['toc'] = true;
            $meta['forceTOC'] = $this->info['forceTOC'] || $this->meta['forceTOC'];
            $meta['description']['tableofcontents'] = $TOC;
        }

        // allways write new metadata
        p_set_metadata($ID, $meta);
        $this->doc = preg_replace('#<p( class=".*?")?>\s*</p>#','',$this->doc);
    }

    function header($text, $level, $pos) {
        global $conf;
        global $ID;
        global $INFO;

        if($text)
        {
            $hid = $this->_headerToLink($text,true);

            //only add items within configured levels
            $this->toc_additem($hid, $text, $level);

            // adjust $node to reflect hierarchy of levels
            $this->node[$level-1]++;
            if ($level < $this->lastlevel) {
                for ($i = 0; $i < $this->lastlevel-$level; $i++) {
                    $this->node[$this->lastlevel-$i-1] = 0;
                }
            }
            $this->lastlevel = $level;


            /* There should be no class for "sectioneditX" if there is no edit perm */
            if ($INFO['perm'] > AUTH_READ &&
                $level <= $conf['maxseclevel'] &&
                count($this->sectionedits) > 0 &&
                $this->sectionedits[count($this->sectionedits) - 1][2] === 'section') {
                $this->finishSectionEdit($pos - 1);
            }

            $headingNumber = '';
            $useNumbered = p_get_metadata($ID, 'usenumberedheading', true); // 2011-02-07 This should be save to use
            if ( $this->getConf('usenumberedheading') || !empty($useNumbered) || !empty($INFO['meta']['usenumberedheading']) || isset($_REQUEST['usenumberedheading'])) {

                // increment the number of the heading
                $this->headingCount[$level]++;

                // build the actual number
                for ($i=1;$i<=5;$i++) {

                    // reset the number of the subheadings
                    if ($i>$level) {
                        $this->headingCount[$i] = 0;
                    }

                    // build the number of the heading
                    $headingNumber .= $this->headingCount[$i] . '.';
                }

                $headingNumber = preg_replace("/(\.0)+\.?$/", '', $headingNumber) . ' ';
            }

            // write the header
            $this->doc .= DOKU_LF.'<h'.$level;
            $class = array();
            if ($INFO['perm'] > AUTH_READ &&
                $level <= $conf['maxseclevel']) {
                $class[] = $this->startSectionEdit($pos, 'section', $text);
            }

            if ( !empty($headingNumber) ) {
	            $class[] = 'level' . trim($headingNumber);
	            if ( intval($headingNumber) > 1 ) {
		            $class[] = 'notfirst';
	            } else {
		            $class[] = 'first';
	            }
            }

			if ( !empty($class) ) {
				$this->doc .= ' class="' . implode(' ', $class) . '"';
			}

            $this->doc .= '><a name="'.$hid.'" id="'.$hid.'">';
            $this->doc .= $this->_xmlEntities($headingNumber . $text);
            $this->doc .= "</a></h$level>".DOKU_LF;

        } else if ( $INFO['perm'] > AUTH_READ ) {

            if ( $hasSeenHeader ) $this->finishSectionEdit($pos);

            // write the header
            $name = rand() . $level;
            $this->doc .= DOKU_LF.'<a name="'. $this->startSectionEdit($pos, 'section_empty', $name) .'" class="' . $this->startSectionEdit($pos, 'section_empty', $name) . '" ></a>'.DOKU_LF;
        }

        $hasSeenHeader = true;
    }

    function section_open($level) {
        $this->currentLevel = $level;
    }

    function section_close() {}

    function p_open() {
        $this->doc .= DOKU_LF.'<p class="level' . $this->currentLevel . '">'.DOKU_LF;
    }

    function listu_open() {
        $this->doc .= '<ul class="level' . $this->currentLevel . '">'.DOKU_LF;
    }

    function listo_open() {
        $this->doc .= '<ol class="level' . $this->currentLevel . '">'.DOKU_LF;
    }

    public function finishSectionEdit($end = null) {
        global $INFO;
        if ( $INFO['perm'] > AUTH_READ )
        {
            return parent::finishSectionEdit($end);
        }
    }

    public function startSectionEdit($start, $type, $title = null) {
        global $INFO;
        if ( $INFO['perm'] > AUTH_READ )
        {
            return parent::startSectionEdit($start, $type, $title);
        }

        return "";
    }

    /**
     * Wrap centered media in a div to center it
     */
    function _media ($src, $title=NULL, $align=NULL, $width=NULL,
                      $height=NULL, $cache=NULL, $render = true) {

        $out = '';
        if($align == 'center'){
            $out .= '<div align="center" style="text-align: center">';
        }

        $out .= parent::_media ($src, $title, $align, $width, $height, $cache, $render);

        if($align == 'center'){
            $out .= '</div>';
        }

        return $out;
    }

    function internalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
    $height=NULL, $cache=NULL, $linking=NULL) {
        global $ID;
        list($src,$hash) = explode('#',$src,2);
        resolve_mediaid(getNS($ID),$src, $exists);

        $noLink = false;
        $render = ($linking == 'linkonly') ? false : true;
        $link = $this->_getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render);

        list($ext,$mime,$dl) = mimetype($src);
        if(substr($mime,0,5) == 'image' && $render){
            $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),($linking=='direct'));
            if ( substr($mime,0,5) == 'image' && $linking='details' ) { $noLink = true;}
        }elseif($mime == 'application/x-shockwave-flash' && $render){
            // don't link flash movies
            $noLink = true;
        }else{
            // add file icons
            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
            $link['class'] .= ' mediafile mf_'.$class;
            $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),true);
        }

        if($hash) $link['url'] .= '#'.$hash;

        //markup non existing files
        if (!$exists)
        $link['class'] .= ' wikilink2';

        //output formatted
        if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
        else $this->doc .= $this->_formatLink($link);
    }

    /**
     * Render an internal Wiki Link
     *
     * $search,$returnonly & $linktype are not for the renderer but are used
     * elsewhere - no need to implement them in other renderers
     *
     * @author Andreas Gohr <andi@splitbrain.org>
     */
    function internallink($id, $name = NULL, $search=NULL,$returnonly=false,$linktype='content') {
        global $conf;
        global $ID;
        // default name is based on $id as given
        $default = $this->_simpleTitle($id);

        // now first resolve and clean up the $id
        resolve_pageid(getNS($ID),$id,$exists);
        $name = $this->_getLinkTitle($name, $default, $isImage, $id, $linktype);
        if ( !$isImage ) {
            if ( $exists ) {
                $class='wikilink1';
            } else {
                $class='wikilink2';
                $link['rel']='nofollow';
            }
        } else {
            $class='media';
        }

        //keep hash anchor
        list($id,$hash) = explode('#',$id,2);
        if(!empty($hash)) $hash = $this->_headerToLink($hash);

        //prepare for formating
        $link['target'] = $conf['target']['wiki'];
        $link['style']  = '';
        $link['pre']    = '';
        $link['suf']    = '';
        // highlight link to current page
        if ($id == $ID) {
            $link['pre']    = '<span class="curid">';
            $link['suf']    = '</span>';
        }
        $link['more']   = '';
        $link['class']  = $class;
        $link['url']    = wl($id);
        $link['name']   = $name;
        $link['title']  = $this->_getLinkTitle(null, $default, $isImage, $id, $linktype);

        //add search string
        if($search){
            ($conf['userewrite']) ? $link['url'].='?' : $link['url'].='&amp;';
            if(is_array($search)){
                $search = array_map('rawurlencode',$search);
                $link['url'] .= 's[]='.join('&amp;s[]=',$search);
            }else{
                $link['url'] .= 's='.rawurlencode($search);
            }
        }

        //keep hash
        if($hash) $link['url'].='#'.$hash;

        //output formatted
        if($returnonly){
            return $this->_formatLink($link);
        }else{
            $this->doc .= $this->_formatLink($link);
        }
    }

    function acronym($acronym) {

        if ( empty($this->acronymsExchanged) ) {
            $this->acronymsExchanged = $this->acronyms;
            $this->acronyms = array();

            foreach( $this->acronymsExchanged as $key => $value ) {
                $this->acronyms[str_replace('_', ' ', $key)] = $value;
            }
        }

        parent::acronym($acronym);
    }

    function _xmlEntities($string) {

        $string = parent::_xmlEntities($string);
        $string = htmlentities($string, 8, 'UTF-8');
        $string = $this->superentities($string);

        if ( $this->info['scriptmode'] ) {
            $string = str_replace(	array( "&lt;%", "%&gt;", "&lt;?", "?&gt;"),
            array( "<%", "%>", "<?", "?>"),
            $string);
        }

        return $string;
    }

	// Unicode-proof htmlentities.
	// Returns 'normal' chars as chars and weirdos as numeric html entites.
	function superentities( $str ){
	    // get rid of existing entities else double-escape
	    $str2 = '';
	    $str = html_entity_decode(stripslashes($str),ENT_QUOTES,'UTF-8');
	    $ar = preg_split('/(?<!^)(?!$)(?!\n)/u', $str );  // return array of every multi-byte character
	    foreach ($ar as $c){
	        $o = ord($c);
	        if ( // (strlen($c) > 1) || /* multi-byte [unicode] */
	            ($o > 127) // || /* <- control / latin weirdos -> */
	            // ($o <32 || $o > 126) || /* <- control / latin weirdos -> */
	            // ($o >33 && $o < 40) ||/* quotes + ambersand */
	            // ($o >59 && $o < 63) /* html */

	        ) {
	            // convert to numeric entity
	            $c = mb_encode_numericentity($c,array (0x0, 0xffff, 0, 0xffff), 'UTF-8');
	        }
	        $str2 .= $c;
	    }
	    return $str2;
	}

    function preformatted($text) {
        $this->doc .= '<div class="pre">';
        parent::preformatted($text);
        $this->doc .= '</div>';
    }

    function _highlight($type, $text, $language = null, $filename = null) {
        $this->doc .= '<div class="pre">';
        parent::_highlight($type, $text, $language, $filename);
        $this->doc .= '</div>';
    }

    /**
     * API of the imagereference plugin
     * https://github.com/i-net-software/dokuwiki-plugin-imagereference
     *
     * Allows to specify special imagecaption tags that the renderer (mpdf) can use
     */
    public function imageCaptionTags(&$imagereferenceplugin)
    {
    	if ( !$imagereferenceplugin->accepts('table') ) {
		    return array( '<figure id="%s" class="imgcaption%s">', // $captionStart
					      '</figure>',                             // $captionEnd
						  '<figcaption class="undercaption">',     // $underCaptionStart
						  '</figcaption>'                          // $underCaptionEnd
					);
    	}

    	return null;
    }
}

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