alpha: Manually parse the :mode property in ClutterScript

The :mode property for a ClutterAlpha can either be an integer, for
an easing mode logical id, or a string for the easing mode "nickname".

clutter/clutter-alpha.c

@@ -82,7 +82,11 @@
  *     <programlisting>
  *  {
  *    "id" : "sine-alpha",
- *    "timeline" : "timeline-01",
+ *    "timeline" : {
+ *      "id" : "sine-timeline",
+ *      "duration" : 500,
+ *      "loop" : true
+ *    },
  *    "function" : "my_sine_alpha"
  *  }
  *     </programlisting>
@@ -107,6 +111,7 @@
 #include "clutter-marshal.h"
 #include "clutter-private.h"
 #include "clutter-scriptable.h"
+#include "clutter-script-private.h"
 
 static void clutter_scriptable_iface_init (ClutterScriptableIface *iface);
 
@@ -288,6 +293,32 @@ clutter_alpha_parse_custom_node (ClutterScriptable *scriptable,
       return TRUE;
     }
 
+  /* we need to do this because we use gulong in place
+   * of ClutterAnimationMode for ClutterAlpha:mode
+   */
+  if (strncmp (name, "mode", 4) == 0)
+    {
+      if (JSON_NODE_TYPE (node) != JSON_NODE_VALUE)
+        return FALSE;
+
+      g_value_init (value, G_TYPE_ULONG);
+
+      if (json_node_get_value_type (node) == G_TYPE_INT64)
+        {
+          g_value_set_ulong (value, json_node_get_int (node));
+          return TRUE;
+        }
+      else if (json_node_get_value_type (node) == G_TYPE_STRING)
+        {
+          const gchar *str = json_node_get_string (node);
+          gulong mode;
+
+          mode = clutter_script_resolve_animation_mode (str);
+          g_value_set_ulong (value, mode);
+          return TRUE;
+        }
+    }
+
   return FALSE;
 }
 

clutter/clutter-script-private.h

@@ -87,6 +87,8 @@ GType    clutter_script_get_type_from_class  (const gchar *name);
 GObject *clutter_script_construct_object  (ClutterScript *script,
                                            ObjectInfo    *info);
 
+gulong   clutter_script_resolve_animation_mode (const gchar *namer);
+
 gboolean clutter_script_enum_from_string  (GType          gtype,
                                            const gchar   *string,
                                            gint          *enum_value);

clutter/clutter-script.c

@@ -564,11 +564,17 @@ static const struct
 
 static const gint n_animation_modes = G_N_ELEMENTS (animation_modes);
 
-static ClutterAnimationMode
+gulong
-resolve_animation_mode (const gchar *name)
+clutter_script_resolve_animation_mode (const gchar *name)
 {
   gint i, res = 0;
 
+  /* XXX - we might be able to optimize by changing the ordering
+   * of the animation_modes array, e.g.
+   *  - special casing linear
+   *  - tokenizing ('ease', 'In', 'Sine') and matching on token
+   *  - binary searching?
+   */
   for (i = 0; i < n_animation_modes; i++)
     {
       if (strcmp (animation_modes[i].name, name) == 0)
@@ -642,7 +648,7 @@ clutter_script_parse_alpha (ClutterScript *script,
 
   val = json_object_get_member (object, "mode");
   if (val && json_node_get_string (val) != NULL)
-    mode = resolve_animation_mode (json_node_get_string (val));
+    mode = clutter_script_resolve_animation_mode (json_node_get_string (val));
 
   if (mode == CLUTTER_CUSTOM_MODE)
     {