FEATURE: Allow to drag 'n drop urls on the main window

Changelog

@@ -28,6 +28,7 @@
     - FEATURE: A search request can now be terminated by another
     - FEATURE: User is now warned when fast resume data was rejected
     - FEATURE: Url seeds are now displayed in torrent properties and are editable
+    - FEATURE: Allow to drag 'n drop urls on the main window
     - I18N: Added Hungarian translation
     - I18N: Added Brazilian translation
     - BUGFIX: Progress of paused torrents is now correct on restart

TODO

@@ -45,6 +45,7 @@
 * beta3
   - Translations update ( IN PROGESS)
   - Optimize and cleanup code
+  - add asserts to squash remaining bugs
   - Wait for some bug fixes in libtorrent :
     - upload/download limit per torrent
     - double free or corruption on exit

src/GUI.cpp

@@ -936,13 +936,18 @@ void GUI::dropEvent(QDropEvent *event){
   QSettings settings("qBittorrent", "qBittorrent");
   bool useTorrentAdditionDialog = settings.value("Options/Misc/TorrentAdditionDialog/Enabled", true).toBool();
   foreach(file, files){
+    file = file.trimmed().replace("file://", "");
+    if(file.startsWith("http://", Qt::CaseInsensitive) || file.startsWith("ftp://", Qt::CaseInsensitive) || file.startsWith("https://", Qt::CaseInsensitive)){
+      BTSession->downloadFromUrl(file);
+      continue;
+    }
     if(useTorrentAdditionDialog){
       torrentAdditionDialog *dialog = new torrentAdditionDialog(this);
       connect(dialog, SIGNAL(torrentAddition(QString, bool, bool, QString)), BTSession, SLOT(addTorrent(QString, bool, bool, QString)));
       connect(dialog, SIGNAL(setInfoBarGUI(QString, QString)), this, SLOT(setInfoBar(QString, QString)));
-      dialog->showLoad(file.trimmed().replace("file://", ""));
+      dialog->showLoad(file);
     }else{
-      BTSession->addTorrent(file.trimmed().replace("file://", ""));
+      BTSession->addTorrent(file);
     }
   }
 }