[gnome-subtitles] Fix #136 Video File Open: show all media files by default

[Pedro Castro <pcastro src gnome org>]

commit 1b0c49c479b130e3ba9917f44f3d7db34d67b2e4
Author: Pedro Castro <pedro gnomesubtitles org>
Date:   Thu Jul 4 23:58:12 2019 +0100

    Fix #136 Video File Open: show all media files by default

 src/GnomeSubtitles/Dialog/VideoOpenDialog.cs | 41 ++++++++++++++++++++++------
 1 file changed, 32 insertions(+), 9 deletions(-)
---
diff --git a/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs b/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs
index 53025f3..f33ec14 100644
--- a/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs
+++ b/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs
@@ -1,6 +1,6 @@
 /*
  * This file is part of Gnome Subtitles.
- * Copyright (C) 2006-2017 Pedro Castro
+ * Copyright (C) 2006-2019 Pedro Castro
  *
  * Gnome Subtitles is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -26,6 +26,17 @@ namespace GnomeSubtitles.Dialog {
 
 public class VideoOpenDialog : BaseDialog {
        private Uri chosenUri;
+       
+       private static readonly string[] VideoMimeTypes = {
+               "video/*",
+               "application/vnd.rn-realmedia", //support for real media files (currently includes rmvb)
+               "application/vnd.rn-realmedia-vbr" //this should be the real mime type for rmvb files
+       };
+       
+       private static readonly string[] AudioMimeTypes = {
+               "audio/*",
+               "application/ogg"
+       };
 
        public VideoOpenDialog () : base() {
                base.Init(BuildDialog());
@@ -57,20 +68,32 @@ public class VideoOpenDialog : BaseDialog {
        }
 
        private void SetFilters (FileChooserDialog dialog) {
+       
+               /* Media files (video+audio) */
+               FileFilter mediaFilesFilter = new FileFilter();
+               mediaFilesFilter.Name = Catalog.GetString("All Media Files");
+               foreach (string mimeType in VideoMimeTypes) {
+                       mediaFilesFilter.AddMimeType(mimeType);
+               }
+               foreach (string mimeType in AudioMimeTypes) {
+                       mediaFilesFilter.AddMimeType(mimeType);
+               }
+               dialog.AddFilter(mediaFilesFilter);
 
                /* Video files */
                FileFilter videoFilesFilter = new FileFilter();
-               videoFilesFilter.Name = Catalog.GetString("All Video Files");
-               videoFilesFilter.AddMimeType("video/*");
-               videoFilesFilter.AddMimeType("application/vnd.rn-realmedia"); //support for real media files 
(currently includes rmvb)
-               videoFilesFilter.AddMimeType("application/vnd.rn-realmedia-vbr"); //this should be the real 
mime type for rmvb files
+               videoFilesFilter.Name = Catalog.GetString("Video Files");
+               foreach (string mimeType in VideoMimeTypes) {
+                       videoFilesFilter.AddMimeType(mimeType);
+               }
                dialog.AddFilter(videoFilesFilter);
 
                /* Audio files */
                FileFilter audioFilesFilter = new FileFilter();
-               audioFilesFilter.Name = Catalog.GetString("All Audio Files");
-               audioFilesFilter.AddMimeType("audio/*");
-               audioFilesFilter.AddMimeType("application/ogg");
+               audioFilesFilter.Name = Catalog.GetString("Audio Files");
+               foreach (string mimeType in AudioMimeTypes) {
+                       audioFilesFilter.AddMimeType(mimeType);
+               }
                dialog.AddFilter(audioFilesFilter);
 
 
@@ -81,7 +104,7 @@ public class VideoOpenDialog : BaseDialog {
                dialog.AddFilter(allFilesFilter);
 
                /* Set active filter */
-               dialog.Filter = videoFilesFilter;
+               dialog.Filter = mediaFilesFilter;
        }
 
        /* Event members */