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display: Don't return NULL in get_primary_monitor()

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Nobody ever does a NULL check there so all that causes is crashes. So
we better return a non-primary monitor than NULL.

Fixes gdk-wayland always returning NULL.
This commit is contained in:
Benjamin Otte 2016-09-03 18:33:30 +02:00
parent dcb816f99a
commit 76d95c312d
1 changed files with 16 additions and 6 deletions
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20
gdk/gdkdisplay.c
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@ -143,6 +143,12 @@ gdk_display_real_get_default_seat (GdkDisplay *display)
return display->seats->data;
}
static GdkMonitor *
gdk_display_real_get_primary_monitor (GdkDisplay *display)
{
return gdk_display_get_monitor (display, 0);
}
static void
gdk_display_class_init (GdkDisplayClass *class)
{
@ -160,6 +166,8 @@ gdk_display_class_init (GdkDisplayClass *class)
class->event_data_free = gdk_display_real_event_data_free;
class->get_default_seat = gdk_display_real_get_default_seat;
class->get_primary_monitor = gdk_display_real_get_primary_monitor;
/**
* GdkDisplay::opened:
* @display: the object on which the signal is emitted
@ -2597,8 +2605,13 @@ gdk_display_get_monitor (GdkDisplay *display,
* manager to place the windows, specialized desktop applications
* such as panels should place themselves on the primary monitor.
*
* Returns: (nullable) (transfer none): the primary monitor, or %NULL if no primary
* monitor is configured by the user
* If no monitor is the designated primary monitor, any monitor
* (usually the first) may be returned. To make sure there is a dedicated
* primary monitor, use gdk_monitor_is_primary() on the returned monitor.
*
* Returns: (transfer none): the primary monitor, or any monitor if no
* primary monitor is configured by the user
*
* Since: 3.22
*/
GdkMonitor *
@ -2606,10 +2619,7 @@ gdk_display_get_primary_monitor (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
if (GDK_DISPLAY_GET_CLASS (display)->get_primary_monitor)
return GDK_DISPLAY_GET_CLASS (display)->get_primary_monitor (display);
return NULL;
}
/**