reftests: Add reftest for direction change

This reftest makes use of the new feature to add signal handlers.

It adds a libreftest.so module containing all the code for the reftests.
When adding a test named reftest.ui, please keep code contained in a
source file names reftest.c and add that file to Makefile.am.

https://bugzilla.gnome.org/show_bug.cgi?id=730833

testsuite/reftests/Makefile.am

@@ -295,6 +295,8 @@ testdata = \
 	rotated-layout.ui \
 	separator-size.ref.ui \
 	separator-size.ui \
+	set-default-direction.ui \
+	set-default-direction.ref.ui \
 	shorthand-entry-border.css \
 	shorthand-entry-border.ref.ui \
 	shorthand-entry-border.ui \
@@ -347,6 +349,16 @@ insttest_PROGRAMS = gtk-reftest
 
 reftestdir = $(insttestdir)/reftests
 reftest_DATA = $(testdata)
+reftest_LTLIBRARIES =			\
+	libreftest.la			\
+	$(NULL)
+
+libreftest_la_LDFLAGS = -rpath $(reftestdir) -avoid-version -module $(no_undefined)
+libreftest_la_CFLAGS = $(gtk_reftest_CFLAGS)
+libreftest_la_LIBADD = $(gtk_reftest_LDADD)
+libreftest_la_SOURCES =			\
+	set-default-direction.c		\
+	$(NULL)
 
 substitutions = \
 	-e s,@pkglibexecdir\@,$(pkglibexecdir),g \

testsuite/reftests/set-default-direction.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Author:
+ *      Benjamin Otte <otte@gnome.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+
+G_MODULE_EXPORT void
+switch_default_direction (void)
+{
+  switch (gtk_widget_get_default_direction ())
+    {
+    case GTK_TEXT_DIR_LTR:
+      g_test_message ("Attention: globally switching default text direction from LTR to RTL");
+      gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
+      break;
+    case GTK_TEXT_DIR_RTL:
+      g_test_message ("Attention: globally switching default text direction from RTL to LTR");
+      gtk_widget_set_default_direction (GTK_TEXT_DIR_LTR);
+      break;
+    case GTK_TEXT_DIR_NONE:
+    default:
+      g_assert_not_reached ();
+      break;
+    }
+}
+
+G_MODULE_EXPORT void
+switch_direction (GtkWidget *widget)
+{
+  switch (gtk_widget_get_direction (widget))
+    {
+    case GTK_TEXT_DIR_LTR:
+      gtk_widget_set_direction (widget, GTK_TEXT_DIR_RTL);
+      break;
+    case GTK_TEXT_DIR_RTL:
+      gtk_widget_set_direction (widget, GTK_TEXT_DIR_LTR);
+      break;
+    case GTK_TEXT_DIR_NONE:
+    default:
+      g_assert_not_reached ();
+      break;
+    }
+}
+
+G_MODULE_EXPORT void
+swap_child (GtkWidget *window)
+{
+  GtkWidget *image;
+
+  gtk_container_remove (GTK_CONTAINER (window), gtk_bin_get_child (GTK_BIN (window)));
+
+  image = gtk_image_new_from_icon_name ("go-next", GTK_ICON_SIZE_BUTTON);
+  gtk_widget_show (image);
+  gtk_container_add (GTK_CONTAINER (window), image);
+}
+

testsuite/reftests/set-default-direction.ref.ui

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.18.1 -->
+<interface>
+  <requires lib="gtk+" version="3.12"/>
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <signal name="realize" handler="reftest:switch_default_direction" after="yes" swapped="no"/>
+    <signal name="map" handler="reftest:swap_child" after="yes" swapped="no"/>
+    <signal name="destroy" handler="reftest:switch_default_direction" after="yes" swapped="no"/>
+    <child>
+      <object class="GtkImage" id="image1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="icon_name">go-next</property>
+      </object>
+    </child>
+  </object>
+</interface>

testsuite/reftests/set-default-direction.ui

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.18.1 -->
+<interface>
+  <requires lib="gtk+" version="3.12"/>
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <signal name="map" handler="reftest:switch_default_direction" swapped="no"/>
+    <signal name="destroy" handler="reftest:switch_default_direction" swapped="no"/>
+    <child>
+      <object class="GtkImage" id="image1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="icon_name">go-next</property>
+      </object>
+    </child>
+  </object>
+</interface>