Add more supported mimes read ODF formats

Add an array for support mimes read formats
Use this array in getSupportedMimetypes method to avoid "is not supported by Documents app" Exception
Skip read formats in searchDocuments method

lib/storage.php

@@ -26,6 +26,11 @@
 
 class Storage {
 	const MIMETYPE_LIBREOFFICE_WORDPROCESSOR = 'application/vnd.oasis.opendocument.text';
+	private static $SUPPORTED_MIMES_READ = array(
+		'application/vnd.oasis.opendocument.spreadsheet',
+		'application/vnd.oasis.opendocument.presentation',
+		'application/vnd.oasis.opendocument.graphics',
+	);
 
 	public static function getDocuments() {
 		$list = array_filter(
@@ -92,14 +97,17 @@ public static function onDelete($params) {
 	protected static function searchDocuments(){
 		$documents = array();
 		foreach (self::getSupportedMimetypes() as $mime){
-			$documents = array_merge($documents, \OCP\Files::searchByMime($mime));
+			if (!in_array($mime, self::$SUPPORTED_MIMES_READ)) {
+				$documents = array_merge($documents, \OCP\Files::searchByMime($mime));
+			}
 		}
 		return $documents;
 	}
 
 	public static function getSupportedMimetypes(){
 		return array_merge(
 			array(self::MIMETYPE_LIBREOFFICE_WORDPROCESSOR),
+			self::$SUPPORTED_MIMES_READ,
 			Filter::getAll()
 		);
 	}