"Open destination folder" now opens torrent root folder (if it contains one) instead of the parent folder

Changelog

@@ -1,6 +1,7 @@
 * Unreleased - Christophe Dumez <chris@qbittorrent.org> - v2.1.2
     - BUGFIX: Fix overwrite check when renaming a folder in a torrent
     - BUGFIX: Force a recheck after renaming files to avoid overwriting
+    - BUGFIX: Improve "Open destination folder" behavior
     - COSMETIC: Improved transfer speed display in peers list
 
 * Wed Jan 20 2010 - Christophe Dumez <chris@qbittorrent.org> - v2.1.1

src/qtorrenthandle.cpp

@@ -432,6 +432,15 @@ bool QTorrentHandle::priv() const {
   return h.get_torrent_info().priv();
 }
 
+QString QTorrentHandle::root_path() const {
+  Q_ASSERT(h.is_valid());
+  if(num_files() == 0) return "";
+  QStringList path_list = misc::toQString(h.get_torrent_info().file_at(0).path.string()).split(QDir::separator());
+  if(path_list.size() > 1)
+    return save_path()+QDir::separator()+path_list.first();
+  return save_path();
+}
+
 //
 // Setters
 //

src/qtorrenthandle.h

@@ -126,6 +126,7 @@ class QTorrentHandle {
 #endif
     bool priv() const;
     bool first_last_piece_first() const;
+    QString root_path() const;
 
     //
     // Setters

src/transferlistwidget.cpp

@@ -529,7 +529,7 @@ void TransferListWidget::torrentDoubleClicked(QModelIndex index) {
     }
     break;
   case OPEN_DEST:
-    QDesktopServices::openUrl("file://" + h.save_path());
+    QDesktopServices::openUrl("file://" + h.root_path());
     break;
   }
 }
@@ -663,7 +663,7 @@ void TransferListWidget::openSelectedTorrentsFolder() const {
   foreach(const QModelIndex &index, selectedIndexes) {
     QTorrentHandle h = BTSession->getTorrentHandle(getHashFromRow(mapToSource(index).row()));
     if(h.is_valid()) {
-      QString savePath = h.save_path();
+      QString savePath = h.root_path();
       if(!pathsList.contains(savePath)) {
         pathsList.append(savePath);
         QDesktopServices::openUrl(QUrl(QString("file://")+savePath));