x11: drag and drop append with modifier

If the drag and drop action is anything other than
XdndActionCopy, append the dropped files rather than
replacing the existing playlist. With most file managers,
this will mean at least pressing shift while dropping.

1 files changed, 7 insertions, 1 deletions

diff --git a/video/out/x11_common.c b/video/out/x11_common.c
index a5c9dd84f5..d077957c4e 100644
--- a/video/out/x11_common.c
+++ b/video/out/x11_common.c
@@ -793,6 +793,8 @@ static void vo_x11_dnd_handle_message(struct vo *vo, XClientMessageEvent *ce)
             dnd_select_format(x11, args, 3);
         }
     } else if (ce->message_type == XA(x11, XdndPosition)) {
+        x11->dnd_requested_action = ce->data.l[4];
+
         Window src = ce->data.l[0];
         XEvent xev;
 
@@ -836,9 +838,13 @@ static void vo_x11_dnd_handle_selection(struct vo *vo, XSelectionEvent *se)
         void *prop = x11_get_property(x11, x11->window, XAs(x11, DND_PROPERTY),
                                       x11->dnd_requested_format, 8, &nitems);
         if (prop) {
+            enum mp_dnd_action action =
+                x11->dnd_requested_action == XA(x11, XdndActionCopy) ?
+                DND_REPLACE : DND_APPEND;
+
             // No idea if this is guaranteed to be \0-padded, so use bstr.
             success = mp_event_drop_mime_data(vo->input_ctx, "text/uri-list",
-                                              (bstr){prop, nitems}, DND_REPLACE) > 0;
+                                              (bstr){prop, nitems}, action) > 0;
             XFree(prop);
         }
     }