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GdkDisplay: Call the correct push|pop_error_trap()

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It is wrong to assume all Displays are of the same class as the default.

https://bugzilla.gnome.org/show_bug.cgi?id=784016
This commit is contained in:
Daniel Boles 2017-08-15 19:29:22 +01:00 committed by Daniel Boles
parent 99c8e30c02
commit 0721dad970
1 changed files with 18 additions and 19 deletions
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37
gdk/gdkdisplay.c
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@ -2301,41 +2301,38 @@ void
gdk_error_trap_push (void)
{
GdkDisplayManager *manager;
GdkDisplayClass *class;
GdkGlobalErrorTrap *trap;
GSList *displays;
GSList *l;
manager = gdk_display_manager_get ();
class = GDK_DISPLAY_GET_CLASS (gdk_display_manager_get_default_display (manager));
displays = gdk_display_manager_list_displays (manager);
if (class->push_error_trap == NULL)
return;
trap = g_slice_new0 (GdkGlobalErrorTrap);
for (l = displays; l != NULL; l = l->next)
{
GdkDisplay *display = l->data;
GdkDisplayClass *class = GDK_DISPLAY_GET_CLASS (display);
trap = g_slice_new (GdkGlobalErrorTrap);
trap->displays = gdk_display_manager_list_displays (manager);
g_slist_foreach (trap->displays, (GFunc) g_object_ref, NULL);
for (l = trap->displays; l != NULL; l = l->next)
class->push_error_trap (l->data);
if (class->push_error_trap != NULL)
{
class->push_error_trap (display);
trap->displays = g_slist_prepend (trap->displays, g_object_ref (display));
}
}
g_queue_push_head (&gdk_error_traps, trap);
g_slist_free (displays);
}
static gint
gdk_error_trap_pop_internal (gboolean need_code)
{
GdkDisplayManager *manager;
GdkDisplayClass *class;
GdkGlobalErrorTrap *trap;
gint result;
GSList *l;
manager = gdk_display_manager_get ();
class = GDK_DISPLAY_GET_CLASS (gdk_display_manager_get_default_display (manager));
if (class->pop_error_trap == NULL)
return 0;
trap = g_queue_pop_head (&gdk_error_traps);
g_return_val_if_fail (trap != NULL, 0);
@ -2343,7 +2340,9 @@ gdk_error_trap_pop_internal (gboolean need_code)
result = 0;
for (l = trap->displays; l != NULL; l = l->next)
{
gint code = class->pop_error_trap (l->data, !need_code);
GdkDisplay *display = l->data;
GdkDisplayClass *class = GDK_DISPLAY_GET_CLASS (display);
gint code = class->pop_error_trap (display, !need_code);
/* we use the error on the last display listed, why not. */
if (code != 0)