more fixes

unblock unplayable files

fix context menu errors of pdfViwer

src/renderer/component/viewers/pdfViewer.jsx

@@ -10,13 +10,26 @@ type Props = {
 };
 
 class PdfViewer extends React.PureComponent<Props> {
+  constructor(props) {
+    super(props);
+    this.viewer = React.createRef();
+  }
+
+  // TODO: Enable context-menu
+  stopContextMenu = event => {
+    event.preventDefault();
+    event.stopPropagation();
+  };
+
   render() {
     const { source } = this.props;
     return (
+      <div className="file-render__viewer" onContextMenu={this.stopContextMenu}>
         <webview
-        className="file-render__viewer"
+          ref={this.viewer}
           src={`chrome://pdf-viewer/index.html?src=file://${source.downloadPath}`}
         />
+      </div>
     );
   }
 }

src/renderer/page/file/view.jsx

@@ -50,7 +50,16 @@ type Props = {
 
 class FilePage extends React.Component<Props> {
   static PLAYABLE_MEDIA_TYPES = ['audio', 'video'];
-  static PREVIEW_MEDIA_TYPES = ['text', 'image', 'document', '3D-file'];
+  static PREVIEW_MEDIA_TYPES = [
+    'text',
+    'model',
+    'image',
+    '3D-file',
+    'document',
+    // Bypass unplayable files
+    // TODO: Find a better way to detect supported types
+    'application',
+  ];
 
   constructor(props: Props) {
     super(props);