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<?php
final class WfMediaHelper {
/**
* An array of supported embed types and their mime types
*/
private static $embedMimes = array(
"doc"=> "application/msword",
"xls"=> "application/vnd.ms-excel",
"ppt"=> "application/vnd.ms-powerpoint",
"dot"=> "application/msword",
"pps"=> "application/vnd.ms-powerpoint",
"docx"=> "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
"dotx"=> "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
"pptx"=> "application/vnd.openxmlformats-officedocument.presentationml.presentation",
"xlsx"=> "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"xlsm"=> "application/vnd.ms-excel.sheet.macroEnabled.12",
"ppsx"=> "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
"sldx"=> "application/vnd.openxmlformats-officedocument.presentationml.slide",
"potx"=> "application/vnd.openxmlformats-officedocument.presentationml.template",
"xltx"=> "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
"odt"=> "application/vnd.oasis.opendocument.text",
"odg"=> "application/vnd.oasis.opendocument.graphics",
"odp"=> "application/vnd.oasis.opendocument.presentation",
"ods"=> "application/vnd.oasis.opendocument.spreadsheet",
"odf"=> "application/vnd.oasis.opendocument.formula",
"txt"=> "text/plain",
"rtf"=> "application/rtf",
"md"=> "text/markdown",
"pdf"=> "application/pdf"
);
/**
* An array of supported media layout types and their file extensions
*/
private static $allowable = array(
'image' => 'jpg,jpeg,png,gif',
'audio' => 'mp3,m4a,mp4a,ogg',
'video' => 'mp4,mp4v,mpeg,mov,webm',
'object' => 'doc,docx,odg,odp,ods,odt,pdf,ppt,pptx,txt,xcf,xls,xlsx,csv',
'iframe' => '',
);
/**
* Get the embed type from the file extension
*
* @param [string] $extension File extension
* @return Mime type or false
*/
public static function getMimeType($extension) {
if (array_key_exists($extension, self::$embedMimes)) {
return self::$embedMimes[$extension];
}
return false;
}
/**
* Get the media layout from the file extension
*
* @param [type] $extension File extension
* @return Layout type
*/
public static function getLayoutFromExtension($extension) {
$layout = 'link';
array_walk(self::$allowable, function ($values, $key) use ($extension, &$layout) {
if (in_array($extension, explode(',', $values))) {
$layout = $key;
}
});
return $layout;
}
/**
* Determine whether the value is an image
*
* @param [string] $value
* @return boolean
*/
public static function isImage($value) {
$extension = pathinfo($value, PATHINFO_EXTENSION);
return in_array($extension, explode(',', self::$allowable['image']));
}
}