[nautilus/wip/antoniof/gtk4-preparation-step-event-controllers: 26/47] list-view: Remove event window comparison

[António Fernandes <antoniof src gnome org>]

commit fab4e95cc9d03bb7acfe5197dc462802e903c15a
Author: António Fernandes <antoniof gnome org>
Date:   Sun Aug 8 20:49:24 2021 +0100

    list-view: Remove event window comparison
    
    GdkWindow is an X11'ism that's gone in GTK4.
    
    If the event is not in the bin window, then it's in the header, So, we
    can check for clicks in the header using event coordinates instead.

 src/nautilus-list-view.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/nautilus-list-view.c b/src/nautilus-list-view.c
index 0d9624faf..b635ca66e 100644
--- a/src/nautilus-list-view.c
+++ b/src/nautilus-list-view.c
@@ -564,8 +564,8 @@ on_tree_view_multi_press_gesture_pressed (GtkGestureMultiPress *gesture,
     sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
     event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
 
-    /* Remove after switching to GTK+ 4. */
-    if (gdk_event_get_window (event) != gtk_tree_view_get_bin_window (tree_view))
+    /* Column headers lie above bin_window, hence negative y coordinate. */
+    if (bin_y < 0)
     {
         return;
     }