[mutter/bilelmoussaoui/gdk-x11-only: 16/23] core: Replace gtk_get_default_locale usage

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 1c1859244341fd6cd289e57ff35b3263dec800ba
Author: Bilal Elmoussaoui <belmouss redhat com>
Date:   Mon May 9 11:29:11 2022 +0200

    core: Replace gtk_get_default_locale usage
    
    Clutter has an API to get the text direction but used to depend
    on gtk3's translation domain. In order to avoid broken i18n
    in case gtk3 is not installed, move the transtalable string to
    clutter itself.

 clutter/clutter/clutter-build-config.h.meson |  3 +++
 clutter/clutter/clutter-main.c               | 12 +++++++++---
 clutter/clutter/clutter-main.h               |  3 +++
 clutter/clutter/meson.build                  |  1 +
 po/POTFILES.in                               |  1 +
 src/core/util.c                              |  6 +++---
 6 files changed, 20 insertions(+), 6 deletions(-)
---
diff --git a/clutter/clutter/clutter-build-config.h.meson b/clutter/clutter/clutter-build-config.h.meson
index 7ca19deabf..a859f78f9c 100644
--- a/clutter/clutter/clutter-build-config.h.meson
+++ b/clutter/clutter/clutter-build-config.h.meson
@@ -1,3 +1,6 @@
+/* The prefix for our gettext translation domains. */
+#mesondefine GETTEXT_PACKAGE
+
 /* Mutter version */
 #mesondefine MUTTER_VERSION
 
diff --git a/clutter/clutter/clutter-main.c b/clutter/clutter/clutter-main.c
index 5b01783e5e..834c2566ca 100644
--- a/clutter/clutter/clutter-main.c
+++ b/clutter/clutter/clutter-main.c
@@ -50,6 +50,7 @@
 #include "clutter-build-config.h"
 
 #include <stdlib.h>
+#include <glib/gi18n-lib.h>
 
 #include "clutter-actor-private.h"
 #include "clutter-backend-private.h"
@@ -209,7 +210,7 @@ clutter_context_get_pango_fontmap (void)
   return self->font_map;
 }
 
-static ClutterTextDirection
+ClutterTextDirection
 clutter_get_text_direction (void)
 {
   ClutterTextDirection dir = CLUTTER_TEXT_DIRECTION_LTR;
@@ -225,8 +226,13 @@ clutter_get_text_direction (void)
     }
   else
     {
-      /* Re-use GTK+'s LTR/RTL handling */
-      const char *e = g_dgettext ("gtk30", "default:LTR");
+      /*
+       * Translate to default:RTL if you want your widgets
+       * to be RTL, otherwise translate to default:LTR.
+       * Do *not* translate it to "predefinito:LTR", if it
+       * it isn't default:LTR or default:RTL it will not work
+       */
+      const char *e = _("default:LTR");
 
       if (strcmp (e, "default:RTL") == 0)
         dir = CLUTTER_TEXT_DIRECTION_RTL;
diff --git a/clutter/clutter/clutter-main.h b/clutter/clutter/clutter-main.h
index a2d8400f47..24851071dc 100644
--- a/clutter/clutter/clutter-main.h
+++ b/clutter/clutter/clutter-main.h
@@ -150,6 +150,9 @@ void                    clutter_remove_debug_flags              (ClutterDebugFla
 CLUTTER_EXPORT
 void                    clutter_debug_set_max_render_time_constant (int max_render_time_constant_us);
 
+CLUTTER_EXPORT
+ClutterTextDirection    clutter_get_text_direction (void);
+
 G_END_DECLS
 
 #endif /* _CLUTTER_MAIN_H__ */
diff --git a/clutter/clutter/meson.build b/clutter/clutter/meson.build
index 2b8764a0f1..ff834f6200 100644
--- a/clutter/clutter/meson.build
+++ b/clutter/clutter/meson.build
@@ -267,6 +267,7 @@ clutter_built_private_headers = []
 
 cdata = configuration_data()
 cdata.set_quoted('MUTTER_VERSION', meson.project_version())
+cdata.set_quoted('GETTEXT_PACKAGE', meson.project_name())
 cdata.set('CLUTTER_DRIVERS', '"*"')
 cdata.set('HAVE_PANGO_FT2', have_pango_ft2)
 
diff --git a/po/POTFILES.in b/po/POTFILES.in
index cf3563416f..345b396a23 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -12,6 +12,7 @@ src/backends/meta-monitor.c
 src/backends/meta-monitor-manager.c
 src/backends/meta-profiler.c
 src/backends/x11/meta-clutter-backend-x11.c
+src/clutter/clutter/clutter-main.c
 src/compositor/compositor.c
 src/compositor/meta-background.c
 src/core/bell.c
diff --git a/src/core/util.c b/src/core/util.c
index 10c59ed7db..08e26c6492 100644
--- a/src/core/util.c
+++ b/src/core/util.c
@@ -505,11 +505,11 @@ meta_external_binding_name_for_action (guint keybinding_action)
 MetaLocaleDirection
 meta_get_locale_direction (void)
 {
-  switch (gtk_get_locale_direction ())
+  switch (clutter_get_text_direction ())
     {
-    case GTK_TEXT_DIR_LTR:
+    case CLUTTER_TEXT_DIRECTION_LTR:
       return META_LOCALE_DIRECTION_LTR;
-    case GTK_TEXT_DIR_RTL:
+    case CLUTTER_TEXT_DIRECTION_RTL:
       return META_LOCALE_DIRECTION_RTL;
     default:
       g_assert_not_reached ();