[nautilus/wip/antoniof/gtk4-preparation-step-event-controllers: 12/35] list-view: Remove event window comparison

[António Fernandes <antoniof src gnome org>]

commit b27d55f40b60d36da9a0449190b306a180f37a00
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 12c7b8af5..cc8eb6f65 100644
--- a/src/nautilus-list-view.c
+++ b/src/nautilus-list-view.c
@@ -565,8 +565,8 @@ 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;
     }