1 files changed, 196 insertions, 0 deletions
diff --git a/vendor/mikespub/php-epub-meta/src/Dom/Element.php b/vendor/mikespub/php-epub-meta/src/Dom/Element.php
new file mode 100644
index 000000000..2a7058eaa
--- /dev/null
+++ b/vendor/mikespub/php-epub-meta/src/Dom/Element.php
@@ -0,0 +1,196 @@
+<?php
+/**
+ * PHP EPub Meta library
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @author Sébastien Lucas <sebastien@slucas.fr>
+ */
+
+namespace SebLucas\EPubMeta\Dom;
+
+use DOMElement;
+
+/**
+ * EPUB-specific subclass of DOMElement
+ *
+ * Source: https://github.com/splitbrain/php-epub-meta
+ * @author Andreas Gohr <andi@splitbrain.org> © 2012
+ * @author Simon Schrape <simon@epubli.com> © 2015–2018
+ * @author Sébastien Lucas <sebastien@slucas.fr>
+ *
+ * @property string $nodeValueUnescaped
+ */
+class Element extends DOMElement
+{
+    /** @var array<string, string> */
+    public static $namespaces = [
+        'n'   => 'urn:oasis:names:tc:opendocument:xmlns:container',
+        'opf' => 'http://www.idpf.org/2007/opf',
+        'dc'  => 'http://purl.org/dc/elements/1.1/',
+        'ncx' => 'http://www.daisy.org/z3986/2005/ncx/',
+    ];
+
+    /**
+     * Summary of __construct
+     * @param string $name
+     * @param string $value
+     * @param string $namespaceUri
+     */
+    public function __construct($name, $value = '', $namespaceUri = '')
+    {
+        [$prefix, $name] = $this->splitQualifiedName($name);
+        $value = htmlspecialchars($value);
+        if (!$namespaceUri && $prefix) {
+            //$namespaceUri = XmlNamespace::getUri($prefix);
+            $namespaceUri = static::$namespaces[$prefix];
+        }
+        parent::__construct($name, $value, $namespaceUri);
+    }
+
+    /**
+     * Summary of __get
+     * @param string $name
+     * @return string|null
+     */
+    public function __get($name)
+    {
+        switch ($name) {
+            case 'nodeValueUnescaped':
+                return htmlspecialchars_decode($this->nodeValue);
+        }
+
+        return null;
+    }
+
+    /**
+     * Summary of __set
+     * @param string $name
+     * @param mixed $value
+     * @return void
+     */
+    public function __set($name, $value)
+    {
+        switch ($name) {
+            case 'nodeValueUnescaped':
+                $this->nodeValue = htmlspecialchars($value);
+        }
+    }
+
+    /**
+     * Create and append a new child
+     *
+     * Works with our epub namespaces and omits default namespaces
+     * @param string $name
+     * @param string $value
+     * @return Element|bool
+     */
+    public function newChild($name, $value = '')
+    {
+        [$localName, $namespaceUri] = $this->getNameContext($name);
+
+        // this doesn't call the constructor: $node = $this->ownerDocument->createElement($name,$value);
+        $node = new Element($namespaceUri ? $name : $localName, $value, $namespaceUri);
+
+        /** @var Element $node */
+        $node = $this->appendChild($node);
+        return $node;
+    }
+
+    /**
+     * Simple EPUB namespace aware attribute getter
+     * @param string $name
+     * @return string
+     */
+    public function getAttrib($name)
+    {
+        [$localName, $namespaceUri] = $this->getNameContext($name);
+
+        // return value if none was given
+        if ($namespaceUri) {
+            return $this->getAttributeNS($namespaceUri, $localName);
+        } else {
+            return $this->getAttribute($localName);
+        }
+    }
+
+    /**
+     * Simple EPUB namespace aware attribute setter
+     * @param string $name
+     * @param mixed $value
+     * @return void
+     */
+    public function setAttrib($name, $value)
+    {
+        [$localName, $namespaceUri] = $this->getNameContext($name);
+
+        if ($namespaceUri) {
+            $this->setAttributeNS($namespaceUri, $localName, $value);
+        } else {
+            $this->setAttribute($localName, $value);
+        }
+    }
+
+    /**
+     * Simple EPUB namespace aware attribute remover
+     * @param string $name
+     * @return void
+     */
+    public function removeAttrib($name)
+    {
+        [$localName, $namespaceUri] = $this->getNameContext($name);
+
+        if ($namespaceUri) {
+            $this->removeAttributeNS($namespaceUri, $localName);
+        } else {
+            $this->removeAttribute($localName);
+        }
+    }
+
+    /**
+     * Remove this node from the DOM
+     * @return void
+     */
+    public function delete()
+    {
+        $this->parentNode->removeChild($this);
+    }
+
+    /**
+     * Split given name in namespace prefix and local part
+     *
+     * @param  string $name
+     * @return array<string>  (prefix, name)
+     */
+    protected function splitQualifiedName($name)
+    {
+        $list = explode(':', $name, 2);
+        if (count($list) < 2) {
+            array_unshift($list, '');
+        }
+
+        return $list;
+    }
+
+    /**
+     * @param  string $name
+     * @return array<string>
+     */
+    protected function getNameContext($name)
+    {
+        [$prefix, $localName] = $this->splitQualifiedName($name);
+
+        $namespaceUri = '';
+        if ($prefix) {
+            //$namespaceUri = XmlNamespace::getUri($prefix);
+            $namespaceUri = static::$namespaces[$prefix];
+            if (
+                !$this->namespaceURI && $this->isDefaultNamespace($namespaceUri)
+                || $this->namespaceURI == $namespaceUri
+            ) {
+                $namespaceUri = '';
+            }
+        }
+
+        return [$localName, $namespaceUri];
+    }
+}