<?php
// +-------------------------------------------------+
// � 2002-2010 PMB Services / www.sigb.net pmb@sigb.net et contributeurs (voir www.sigb.net)
// +-------------------------------------------------+
// $Id: pdf.class.php,v 1.17.4.4 2026/07/08 07:24:01 tsamson Exp $

if (stristr($_SERVER['REQUEST_URI'], ".class.php")) {
    die("no access");
}

global $visionneuse_path;

require_once $visionneuse_path . "/classes/mimetypes/affichage.class.php";

class pdf extends affichage
{

    public function __construct($doc = 0)
    {
        if ($doc) {
            $this->doc = $doc;
            $this->driver = $doc->driver;
            $this->params = $doc->params;
            $this->getParamsPerso();
        }
    }

    public function fetchDisplay()
    {
        global $visionneuse_path, $charset;

        //le titre
        $this->toDisplay["titre"] = $this->doc->titre;
        //le pdf
        $this->toDisplay["doc"] = "
		<iframe
            title='" . htmlentities($this->doc->titre, ENT_QUOTES, $charset) . "'
            name='docnum'
            id='docnum'
            src='" . $this->driver->getVisionneuseUrl("lvl=afficheur&explnum=" . $this->doc->id . $this->doc->search) . "'
            width='" . $this->parameters["size_x"] . "'
            height='" . $this->parameters["size_y"] .
            "'>
        </iframe>
		<div id='wait'>
			<img src='$visionneuse_path/images/ajax-loader.gif' alt='' />
		</div>
		<script>
			window.onload = function(){
				var wait = document.getElementById('wait');
				if(wait) wait.style.display = 'none';
				if (typeof(checkSize) != 'undefined') checkSize();
			}
		</script>";
        if ($this->parameters['autoresize'] == 1) {
            $this->toDisplay["doc"] .= "
		<script>
			function checkSize(){
				var iframe= document.getElementById('docnum');
				if (isNaN(iframe.width) || iframe.width/getFrameWidth() <= 0.9 || iframe.width/getFrameWidth() >= 1){
					iframe.width = '90%';
					iframe.height = ((getFrameHeight()-40-80)*0.9)+'px';
				}
			}
		</script>";
        }
        //la description
        $this->toDisplay["desc"] = $this->doc->desc;
        return $this->toDisplay;
    }

    /**
     * Envoie le flux PDF au navigateur
     * Si le document est accessible sur disque via son chemin (le meme que celui
     * utilise par bookreader), il est servi en flux direct par readfile() pour
     * eviter de le charger entierement en memoire.
     * Sinon, on repasse par openCurrentDoc() (cache, URL, document en base).
     * Renvoie une erreur HTTP 404 si le contenu est vide ou illisible,
     * plutot qu'un flux PDF vide impossible a diagnostiquer cote client
     *
     * @return void
     */
    public function render()
    {
        if (!empty($this->doc->path) && is_file($this->doc->path) && is_readable($this->doc->path)) {
            header("Content-Type: application/pdf");
            header('Content-disposition: inline; filename="' . basename($this->doc->path) . '"');
            header('Content-Length: ' . filesize($this->doc->path));
            readfile($this->doc->path);
            return;
        }
        $document = $this->driver->openCurrentDoc();
        if (empty($document)) {
            http_response_code(404);
            header("Content-Type: text/plain");
            print "Document indisponible";
            return;
        }
        header("Content-Type: application/pdf");
        if (!empty($this->doc->path)) {
            header('Content-disposition: inline; filename="' . basename($this->doc->path) . '"');
        }
        print $document;
    }

    public function getTabParam()
    {
        if (!isset($this->parameters['size_x'])) {
            $this->parameters['size_x'] = 0;
        }
        if (!isset($this->parameters['size_y'])) {
            $this->parameters['size_y'] = 0;
        }
        $this->tabParam = array(
            "size_x" => array("type" => "text", "name" => "size_x", "value" => $this->parameters['size_x'], "desc" => "Largeur du document"),
            "size_y" => array("type" => "text", "name" => "size_y", "value" => $this->parameters['size_y'], "desc" => "Hauteur du document"),
            "autoresize" => array("type" => "checkbox", "name" => "autoresize", "value" => 1, "desc" => "Autoriser le redimensionnement automatique"),
        );
        return $this->tabParam;
    }

    public function getParamsPerso()
    {
        $params = $this->driver->getClassParam('pdf');
        $this->unserializeParams($params);
        if (empty($this->parameters['size_x'])) $this->parameters['size_x'] = $this->driver->getParam("maxX");
        if (empty($this->parameters['size_y'])) $this->parameters['size_y'] = $this->driver->getParam("maxY");
    }

    public function unserializeParams($paramsToUnserialized)
    {
        $unserializedParameters = unserialize($paramsToUnserialized, ['allowed_classes' => false]);
        if (is_array($unserializedParameters)) {
            $this->parameters = $unserializedParameters;
        }

        if (!isset($this->parameters['autoresize']) || !$this->parameters['autoresize']) {
            $this->parameters['autoresize'] = 0;
        } else {
            $this->parameters['autoresize'] = 1;
        }
        return $this->parameters;
    }

    public function serializeParams($paramsToSerialized)
    {
        $this->parameters = $paramsToSerialized;
        if (!isset($this->parameters['autoresize']) || !$this->parameters['autoresize']) {
            $this->parameters['autoresize'] = 0;
        }
        return serialize($paramsToSerialized);
    }
}

