[nautilus] floating-bar: fix hide on hover with notebook visible

[Ernestas Kulik <ernestask src gnome org>]

commit 0880338015260541219fa337c59f2f0dabd7c524
Author: Ernestas Kulik <ernestask src gnome org>
Date:   Tue Oct 18 18:52:20 2016 +0300

    floating-bar: fix hide on hover with notebook visible
    
    When the notebook is visible, the pointer intersection with the floating
    bar check fails. That is due to how the floating bar bounds are
    calculated - the offset of the overlay when tabs are visible is not
    taken into account, allowing the upper y bound to become smaller than
    the lower bound. That can be fixed by calculating the upper y bound
    relative to the lower one.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773119

 src/nautilus-floating-bar.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/src/nautilus-floating-bar.c b/src/nautilus-floating-bar.c
index dc866c0..2a6a2c5 100644
--- a/src/nautilus-floating-bar.c
+++ b/src/nautilus-floating-bar.c
@@ -231,7 +231,6 @@ overlay_enter_notify_cb (GtkWidget        *parent,
 {
     GtkWidget *widget = user_data;
     CheckPointerData *data;
-    GtkAllocation alloc_parent;
     gint y_pos;
 
     NautilusFloatingBar *self = NAUTILUS_FLOATING_BAR (widget);
@@ -251,7 +250,6 @@ overlay_enter_notify_cb (GtkWidget        *parent,
         return GDK_EVENT_PROPAGATE;
     }
 
-    gtk_widget_get_allocation (parent, &alloc_parent);
     gdk_window_get_position (gtk_widget_get_window (widget), NULL, &y_pos);
 
     data = g_slice_new (CheckPointerData);
@@ -259,7 +257,7 @@ overlay_enter_notify_cb (GtkWidget        *parent,
     data->floating_bar = widget;
     data->device = gdk_event_get_device ((GdkEvent *) event);
     data->y_down_limit = y_pos;
-    data->y_upper_limit = alloc_parent.height;
+    data->y_upper_limit = y_pos + gtk_widget_get_allocated_height (widget);
 
     self->priv->hover_timeout_id = g_timeout_add_full (G_PRIORITY_DEFAULT, HOVER_HIDE_TIMEOUT_INTERVAL,
                                                        check_pointer_timeout, data,