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gdk/wayland: Add GdkDisplay call to query available globals

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The internal known_globals hashtable is used to carry accounting for
interfaces that depend on others (as ordering is not guaranteed), extend
its usage so it also keeps track of unimplemented interfaces (here at
least).

The API call will then use this to allow querying the globals offered by
the compositor, it will be useful to determine whether we can use
text-input protocols or should fallback to other IMs.
This commit is contained in:
Carlos Garnacho 2018-02-13 14:28:44 +01:00
parent 365707e4eb
commit 3b568fbe77
3 changed files with 41 additions and 6 deletions
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1
docs/reference/gdk/gdk4-sections.txt
View File

@ -975,6 +975,7 @@ gdk_wayland_device_get_wl_pointer
gdk_wayland_device_get_wl_seat
gdk_wayland_display_get_wl_compositor
gdk_wayland_display_get_wl_display
gdk_wayland_display_query_registry
gdk_wayland_window_new_subsurface
gdk_wayland_window_get_wl_surface
gdk_wayland_window_set_use_custom_surface

42
gdk/wayland/gdkdisplay-wayland.c
View File

@ -384,7 +384,6 @@ gdk_registry_handle_global (void *data,
{
GdkWaylandDisplay *display_wayland = data;
struct wl_output *output;
gboolean handled = TRUE;
GDK_NOTE (MISC,
g_message ("add global %u, interface %s, version %u", id, interface, version));
@ -507,12 +506,9 @@ gdk_registry_handle_global (void *data,
&server_decoration_listener,
display_wayland);
}
else
handled = FALSE;
if (handled)
g_hash_table_insert (display_wayland->known_globals,
GUINT_TO_POINTER (id), g_strdup (interface));
g_hash_table_insert (display_wayland->known_globals,
GUINT_TO_POINTER (id), g_strdup (interface));
process_on_globals_closures (display_wayland);
}
@ -2077,3 +2073,37 @@ gdk_wayland_display_get_output_scale (GdkWaylandDisplay *display_wayland,
return 0;
}
/**
* gdk_wayland_display_query_registry:
* @display: a wayland #GdkDisplay
* @interface: global interface to query in the registry
*
* Returns %TRUE if the the interface was found in the display
* wl_registry.global handler.
*
* Returns: %TRUE if the global is offered by the compositor
*
* Since: 3.94
**/
gboolean
gdk_wayland_display_query_registry (GdkDisplay *display,
const gchar *global)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GHashTableIter iter;
gchar *value;
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), FALSE);
g_return_val_if_fail (global != NULL, FALSE);
g_hash_table_iter_init (&iter, display_wayland->known_globals);
while (g_hash_table_iter_next (&iter, NULL, (gpointer*) &value))
{
if (strcmp (value, global) == 0)
return TRUE;
}
return FALSE;
}

4
gdk/wayland/gdkwaylanddisplay.h
View File

@ -59,6 +59,10 @@ void gdk_wayland_display_set_startup_notification_id (GdkDisp
gboolean gdk_wayland_display_prefers_ssd (GdkDisplay *display);
GDK_AVAILABLE_IN_4_0
gboolean gdk_wayland_display_query_registry (GdkDisplay *display,
const gchar *global);
G_END_DECLS
#endif /* __GDK_WAYLAND_DISPLAY_H__ */