script: Implement State deserialization

It should be possible to describe ClutterState transitions using
ClutterScript in a similar way as ClutterAnimator.

tests/conform/Makefile.am

@@ -51,6 +51,7 @@ test_conformance_SOURCES = 		\
 	test-actor-destroy.c		\
 	test-behaviours.c		\
 	test-animator.c			\
+	test-state.c			\
         $(NULL)
 
 # For convenience, this provides a way to easily run individual unit tests:

tests/conform/test-conform-main.c

@@ -184,6 +184,7 @@ main (int argc, char **argv)
   TEST_CONFORM_SIMPLE ("/script", test_animator_base);
   TEST_CONFORM_SIMPLE ("/script", test_animator_properties);
   TEST_CONFORM_SIMPLE ("/script", test_animator_multi_properties);
+  TEST_CONFORM_SIMPLE ("/script", test_state_base);
 
   TEST_CONFORM_SIMPLE ("/behaviours", test_behaviours);
 

tests/conform/test-state.c

@@ -0,0 +1,59 @@
+#include <clutter/clutter.h>
+
+#include "test-conform-common.h"
+
+void
+test_state_base (TestConformSimpleFixture *fixture G_GNUC_UNUSED,
+                 gconstpointer dummy G_GNUC_UNUSED)
+{
+  ClutterScript *script = clutter_script_new ();
+  GObject *state = NULL;
+  GError *error = NULL;
+  gchar *test_file;
+  GList *states, *keys;
+  ClutterStateKey *state_key;
+  guint duration;
+
+  test_file = clutter_test_get_data_file ("test-state-1.json");
+  clutter_script_load_from_file (script, test_file, &error);
+  if (g_test_verbose () && error)
+    g_print ("Error: %s\n", error->message);
+
+  g_free (test_file);
+
+#if GLIB_CHECK_VERSION (2, 20, 0)
+  g_assert_no_error (error);
+#else
+  g_assert (error == NULL);
+#endif
+
+  state = clutter_script_get_object (script, "state");
+  g_assert (CLUTTER_IS_STATE (state));
+
+  states = clutter_state_get_states (CLUTTER_STATE (state));
+  g_assert (states != NULL);
+
+  g_assert (g_list_find (states, g_intern_static_string ("clicked")));
+  g_list_free (states);
+
+  duration = clutter_state_get_duration (CLUTTER_STATE (state), "*", "clicked");
+  g_assert_cmpint (duration, ==, 250);
+
+  duration = clutter_state_get_duration (CLUTTER_STATE (state), "clicked", "*");
+  g_assert_cmpint (duration, ==, 150);
+
+  keys = clutter_state_get_keys (CLUTTER_STATE (state), "*", "clicked",
+                                 clutter_script_get_object (script, "rect"),
+                                 "opacity");
+  g_assert (keys != NULL);
+  g_assert_cmpint (g_list_length (keys), ==, 1);
+
+  state_key = keys->data;
+  g_assert (clutter_state_key_get_object (state_key) == clutter_script_get_object (script, "rect"));
+  g_assert (clutter_state_key_get_mode (state_key) == CLUTTER_LINEAR);
+  g_assert_cmpstr (clutter_state_key_get_property_name (state_key), ==, "opacity");
+
+  g_list_free (keys);
+
+  g_object_unref (script);
+}

tests/data/Makefile.am

@@ -12,6 +12,7 @@ json_files = \
 	test-animator-1.json			\
 	test-animator-2.json			\
 	test-animator-3.json			\
+	test-state-1.json			\
 	$(NULL)
 
 png_files = \

tests/data/test-state-1.json

@@ -0,0 +1,33 @@
+[
+  {
+    "type" : "ClutterRectangle",
+    "id" : "rect",
+    "width" : 100,
+    "height" : 100
+  },
+  {
+    "type" : "ClutterState",
+    "id" : "state",
+
+    "transitions" : [
+      {
+        "source" : "*",
+        "target" : "clicked",
+        "duration" : 250,
+
+        "keys" : [
+          [ "rect", "opacity", "linear", 128 ]
+        ]
+      },
+      {
+        "source" : "clicked",
+        "target" : "*",
+        "duration" : 150,
+
+        "keys" : [
+          [ "rect", "opacity", "linear", 255 ]
+        ]
+      }
+    ]
+  }
+]