/**
* Create OPF File.
*
* @param array $book_contents
* @param array $metadata
*
* @throws \Exception
*/
protected function createOPF($book_contents, $metadata)
{
if (empty($this->manifest)) {
throw new \Exception('$this->manifest cannot be empty. Did you forget to call $this->createOEPBS() ?');
}
// Vars
$vars = array('meta' => $metadata, 'manifest' => $this->manifest, 'stylesheet' => $this->stylesheet);
// Find all the image files, insert them into the OPF file
$html = '';
$path_to_assets = $this->tmpDir . '/OEBPS/assets';
$assets = scandir($path_to_assets);
$used_ids = array();
foreach ($assets as $asset) {
if ('.' == $asset || '..' == $asset) {
continue;
}
$mimetype = $this->mediaType("{$path_to_assets}/{$asset}");
if ($this->coverImage == $asset) {
$file_id = 'cover-image';
} else {
$file_id = 'media-' . pathinfo("{$path_to_assets}/{$asset}", PATHINFO_FILENAME);
$file_id = Sanitize\sanitize_xml_id($file_id);
}
// Check if a media id has already been used, if so give it a new one
$check_if_used = $file_id;
for ($i = 2; $i <= 999; $i++) {
if (empty($used_ids[$check_if_used])) {
break;
} else {
$check_if_used = $file_id . "-{$i}";
}
}
$file_id = $check_if_used;
$html .= sprintf('<item id="%s" href="OEBPS/assets/%s" media-type="%s" />', $file_id, $asset, $mimetype) . "\n";
$used_ids[$file_id] = true;
}
$vars['manifest_assets'] = $html;
$vars['do_copyright_license'] = strip_tags($this->doCopyrightLicense($metadata));
// Put contents
file_put_contents($this->tmpDir . "/book.opf", $this->loadTemplate($this->dir . '/templates/opf.php', $vars));
}
/**
* Find all the image files, insert them into the OPF file
*
* @return string
*/
protected function buildManifestAssetsHtml()
{
$html = '';
$path_to_assets = $this->tmpDir . '/OEBPS/assets';
$assets = scandir($path_to_assets);
$used_ids = array();
foreach ($assets as $asset) {
if ('.' == $asset || '..' == $asset) {
continue;
}
$mimetype = $this->mediaType("{$path_to_assets}/{$asset}");
if ($this->coverImage == $asset) {
$file_id = 'cover-image';
} else {
$file_id = 'media-' . pathinfo("{$path_to_assets}/{$asset}", PATHINFO_FILENAME);
$file_id = Sanitize\sanitize_xml_id($file_id);
}
// Check if a media id has already been used, if so give it a new one
$check_if_used = $file_id;
for ($i = 2; $i <= 999; $i++) {
if (empty($used_ids[$check_if_used])) {
break;
} else {
$check_if_used = $file_id . "-{$i}";
}
}
$file_id = $check_if_used;
$html .= sprintf('<item id="%s" href="OEBPS/assets/%s" media-type="%s" />', $file_id, $asset, $mimetype) . "\n";
$used_ids[$file_id] = true;
}
return $html;
}
/**
* @param array $book_contents
* @param array $metadata
*/
protected function echoMetaData($book_contents, $metadata)
{
foreach ($metadata as $name => $content) {
$name = Sanitize\sanitize_xml_id(str_replace('_', '-', $name));
$content = trim(strip_tags(html_entity_decode($content)));
// Plain text
$content = preg_replace('/\\s+/', ' ', preg_replace('/\\n+/', ' ', $content));
// Normalize whitespaces
$content = Sanitize\sanitize_xml_attribute($content);
printf('<meta name="%s" content="%s" />', $name, $content);
echo "\n";
}
}
/**
* Create OPF File.
*
* @param array $book_contents
* @param array $metadata
*
* @throws \Exception
*/
protected function createOPF($book_contents, $metadata)
{
if (empty($this->manifest)) {
throw new \Exception('$this->manifest cannot be empty. Did you forget to call $this->createOEPBS() ?');
}
$vars = array('meta' => $metadata, 'manifest' => $this->manifest, 'stylesheet' => $this->stylesheet);
// Find all the image files, insert them into the OPF file
$html = '';
$path_to_assets = $this->tmpDir . '/OEBPS/assets';
$assets = scandir($path_to_assets);
$used_ids = array();
foreach ($assets as $asset) {
if ('.' == $asset || '..' == $asset) {
continue;
}
$mimetype = $this->mediaType("{$path_to_assets}/{$asset}");
if ($this->coverImage == $asset) {
$file_id = 'cover-image';
} else {
$file_id = 'media-' . pathinfo("{$path_to_assets}/{$asset}", PATHINFO_FILENAME);
$file_id = Sanitize\sanitize_xml_id($file_id);
}
// Check if a media id has already been used, if so give it a new one
$check_if_used = $file_id;
for ($i = 2; $i <= 999; $i++) {
if (empty($used_ids[$check_if_used])) {
break;
} else {
$check_if_used = $file_id . "-{$i}";
}
}
$file_id = $check_if_used;
$html .= sprintf('<item id="%s" href="OEBPS/assets/%s" media-type="%s" />', $file_id, $asset, $mimetype) . "\n\t\t";
$used_ids[$file_id] = true;
}
$vars['manifest_assets'] = $html;
//Clear the html buffer for reuse
$html = '';
//Loop through the html files for the manifest and assemble them. Assign properties based on their content.
foreach ($this->manifest as $k => $v) {
$properties = $this->getProperties($this->tmpDir . "/OEBPS/" . $v['filename']);
array_key_exists('mathml', $properties) ? $mathml = 'properties="mathml" ' : ($mathml = '');
array_key_exists('scripted', $properties) ? $scripted = 'properties="scripted" ' : ($scripted = '');
$html .= sprintf('<item id="%s" href="OEBPS/%s" %s%smedia-type="application/xhtml+xml" />', $k, $v['filename'], $mathml, $scripted) . "\n\t\t";
}
$vars['manifest_filelist'] = $html;
$vars['do_copyright_license'] = strip_tags($this->doCopyrightLicense($metadata));
// Put contents
file_put_contents($this->tmpDir . "/book.opf", $this->loadTemplate($this->dir . '/templates/opf.php', $vars));
}