fixed wrong function call

apps/gallery/ajax/galleryOp.php

@@ -42,7 +42,7 @@ function handleRemove($name) {
 
 function handleGetThumbnails($albumname) {
   OCP\Response::enableCaching(3600 * 24); // 24 hour
-  $view = OCP\App::getStorage('gallery');
+  $view = OCP\Files::getStorage('gallery');
   $thumbnail = $view->fopen(urldecode($albumname).'.png', 'r');
   header('Content-Type: '.OC_Image::getMimeTypeForFile($thumbnail));
   OCP\Response::sendFile($thumbnail);

apps/gallery/ajax/sharing.php

@@ -80,7 +80,7 @@ function handleGetThumbnail($token, $imgpath) {
 function handleGetAlbumThumbnail($token, $albumname)
 {
   $owner = OC_Gallery_Sharing::getTokenOwner($token);
-  $view = OCP\App::getStorage('gallery');
+  $view = OCP\Files::getStorage('gallery');
   $file = $view->fopen($albumname.'.png', 'r');
   $image = new OC_Image($file);
   if ($image->valid()) {
@@ -94,7 +94,7 @@ function handleGetAlbumThumbnail($token, $albumname)
 
 function handleGetPhoto($token, $photo) {
   $owner = OC_Gallery_Sharing::getTokenOwner($token);
-  $view = OCP\App::getStorage('files');
+  $view = OCP\Files::getStorage('files');
   $file = $view->fopen(urldecode($photo), 'r');
   header('Content-Type: '.OC_Image::getMimeTypeForFile($file));
   OCP\Response::sendFile($file);

apps/gallery/lib/album.php

@@ -90,7 +90,7 @@ class OC_Gallery_Album {
 	}
 
 	public static function changeThumbnailPath($oldname, $newname) {
-		$view = OCP\App::getStorage('gallery');
+		$view = OCP\Files::getStorage('gallery');
 		$view->rename($oldname.'.png', $newname.'.png');
 	}
 

apps/gallery/lib/photo.php

@@ -68,7 +68,7 @@ class OC_Gallery_Photo {
 
 	public static function getThumbnail($image_name, $owner = null) {
 		if (!$owner) $owner = OCP\USER::getUser();
-		$view = OCP\App::getStorage('gallery');
+		$view = OCP\Files::getStorage('gallery');
 		$save_dir = dirname($image_name);
 		if (!$view->is_dir($save_dir)) {
 			$view->mkdir($save_dir);

apps/gallery/lib/scanner.php

@@ -81,7 +81,7 @@ class OC_Gallery_Scanner {
 				$image->destroy();
 			}
 		}
-		$view = OCP\App::getStorage('gallery');
+		$view = OCP\Files::getStorage('gallery');
 		imagepng($thumbnail, $view->getLocalFile($albumName.'.png'));
 		imagedestroy($thumbnail);
 	}