[nautilus/wip/antoniof/gtk4-preparation-step-event-controllers: 1/21] list-view: Remove event window comparison

[António Fernandes <antoniof src gnome org>]

commit 7fce73e619b679262afa081f9d6827011bd5fd24
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 cd5235225..352f2a93e 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;
     }