Logo.php

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<?php
 
namespace SAML2\XML\mdui;
 
class Logo
{
    public $url;
 
    public $width;
 
    public $height;
 
    public $lang;
 
    public function __construct(\DOMElement $xml = null)
    {
        if ($xml === null) {
            return;
        }
 
        if (!$xml->hasAttribute('width')) {
            throw new \Exception('Missing width of Logo.');
        }
        if (!$xml->hasAttribute('height')) {
            throw new \Exception('Missing height of Logo.');
        }
        if (!is_string($xml->textContent) || !strlen($xml->textContent)) {
            throw new \Exception('Missing url value for Logo.');
        }
        $this->url = $xml->textContent;
        $this->width = (int) $xml->getAttribute('width');
        $this->height = (int) $xml->getAttribute('height');
        $this->lang = $xml->hasAttribute('xml:lang') ? $xml->getAttribute('xml:lang') : null;
    }
 
    public function toXML(\DOMElement $parent)
    {
        assert(is_int($this->width));
        assert(is_int($this->height));
        assert(is_string($this->url));
 
        $doc = $parent->ownerDocument;
 
        $e = $doc->createElementNS(Common::NS, 'mdui:Logo');
        $e->appendChild($doc->createTextNode($this->url));
        $e->setAttribute('width', (int) $this->width);
        $e->setAttribute('height', (int) $this->height);
        if (isset($this->lang)) {
            $e->setAttribute('xml:lang', $this->lang);
        }
        $parent->appendChild($e);
 
        return $e;
    }
}