edje + elm - add new explicit tracking of all cc's used in edj themes

edje_cc now lists all cc's used in an edj file. edje provides an api
to list this. elm now uses this api to expose a list of all cc's used
acorss all the theme(s) selected by the user. this will then be used
by paledit to produce a nicer gui with a list of available cc's to add
etc. and split between basic and extended.

@feat

6 files changed, 201 insertions, 2 deletions

diff --git a/src/lib/edje/Edje_Common.h b/src/lib/edje/Edje_Common.h
index c94a2ff9ac..e03154e6ec 100644
--- a/src/lib/edje/Edje_Common.h
+++ b/src/lib/edje/Edje_Common.h
@@ -1808,6 +1808,37 @@ EAPI Eina_List        *edje_mmap_collection_list(Eina_File *f);
 EAPI void              edje_mmap_collection_list_free(Eina_List *lst);
 
 /**
+ * @brief Returns a list of colorclasses used in this edje file
+ * @param f The mapped file
+ *
+ * @return A list of strings freed by edje_file_color_class_used_free()
+ *
+ * @since 1.26
+ */
+EAPI Eina_List        *edje_mmap_color_class_used_list(Eina_File *f);
+
+/**
+ * @brief Returns a list of colorclasses used in this edje file
+ * @param file The file path
+ *
+ * @return A list of strings freed by edje_file_color_class_used_free()
+ *
+ * @since 1.26
+ */
+EAPI Eina_List        *edje_file_color_class_used_list(const char *file);
+
+/**
+ * @brief Frees a list of color classes used
+ * @param The list
+ *
+ * This frees the list returned by edje_mmap_color_class_used_list() or 
+ * edje_file_color_class_used_list() when you no longer need it.
+ *
+ * @since 1.26
+ */
+EAPI void              edje_file_color_class_used_free(Eina_List *lst);
+
+/**
  * @brief Determines whether a group matching glob exists in an edje mapped file.
  * @param f The mapped file
  * @param glob A glob to match on
diff --git a/src/lib/edje/edje_data.c b/src/lib/edje/edje_data.c
index 6a89fd9ca9..1ce628075f 100644
--- a/src/lib/edje/edje_data.c
+++ b/src/lib/edje/edje_data.c
@@ -2,6 +2,7 @@
 
 EAPI Eet_Data_Descriptor * _edje_edd_edje_file = NULL;
 EAPI Eet_Data_Descriptor * _edje_edd_edje_part_collection = NULL;
+EAPI Eet_Data_Descriptor * _edje_edd_edje_color_class_info = NULL;
 
 Eet_Data_Descriptor *_edje_edd_edje_string = NULL;
 Eet_Data_Descriptor *_edje_edd_edje_style = NULL;
@@ -310,6 +311,7 @@ _edje_edd_shutdown(void)
 
    FREED(_edje_edd_edje_file);
    FREED(_edje_edd_edje_part_collection);
+   FREED(_edje_edd_edje_color_class_info);
 }
 
 #define EDJE_DEFINE_POINTER_TYPE(Type, Name)                                                                                         \
@@ -410,6 +412,11 @@ _edje_edd_init(void)
    EET_DATA_DESCRIPTOR_ADD_VAR_ARRAY(_edje_edd_edje_image_directory, Edje_Image_Directory, "sets", sets, _edje_edd_edje_image_directory_set);
    EET_DATA_DESCRIPTOR_ADD_VAR_ARRAY(_edje_edd_edje_image_directory, Edje_Image_Directory, "vectors", vectors, _edje_edd_edje_vector_directory_entry);
 
+   /* collection directory */
+   EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Edje_Color_Class_Info);
+   _edje_edd_edje_color_class_info = eet_data_descriptor_file_new(&eddc);
+   EET_DATA_DESCRIPTOR_ADD_LIST_STRING(_edje_edd_edje_color_class_info, Edje_Color_Class_Info, "colors", colors);
+
    /*MO*/
 
    EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Edje_Mo);
diff --git a/src/lib/edje/edje_load.c b/src/lib/edje/edje_load.c
index acf0826b1d..1b9f025ebf 100644
--- a/src/lib/edje/edje_load.c
+++ b/src/lib/edje/edje_load.c
@@ -207,6 +207,62 @@ edje_mmap_collection_list_free(Eina_List *lst)
    edje_file_collection_list_free(lst);
 }
 
+EAPI Eina_List *
+edje_mmap_color_class_used_list(Eina_File *f)
+{
+   Eina_List *lst = NULL, *l;
+   Edje_File *edf;
+   int error_ret = 0;
+   const char *s;
+
+   if (!f) return NULL;
+   edf = _edje_cache_file_coll_open(f, NULL, &error_ret, NULL, NULL);
+   if (edf)
+     {
+        Edje_Color_Class_Info *cc_info;
+
+        cc_info = eet_data_read(edf->ef, _edje_edd_edje_color_class_info,
+                                "edje/color_class_info");
+        if (cc_info)
+          {
+             EINA_LIST_FOREACH(cc_info->colors, l, s)
+               lst = eina_list_append(lst, eina_stringshare_add(s));
+             eina_list_free(cc_info->colors);
+             free(cc_info);
+          }
+        _edje_cache_file_unref(edf);
+     }
+
+   return lst;
+}
+
+EAPI Eina_List *
+edje_file_color_class_used_list(const char *file)
+{
+   Eina_File *f;
+   Eina_List *lst = NULL;
+   char *tmp;
+
+   if ((!file) || (!*file)) return NULL;
+   tmp = eina_vpath_resolve(file);
+   f = eina_file_open(tmp, EINA_FALSE);
+   if (!f) goto err;
+
+   lst = edje_mmap_collection_list(f);
+
+   eina_file_close(f); // close matching open OK
+err:
+   free(tmp);
+   return lst;
+}
+
+EAPI void
+edje_file_color_class_used_free(Eina_List *lst)
+{
+   eina_list_free(lst);
+}
+
+
 EAPI Eina_Bool
 edje_mmap_group_exists(Eina_File *f, const char *glob)
 {
diff --git a/src/lib/edje/edje_private.h b/src/lib/edje/edje_private.h
index 1d289123a7..d7f8ff6a3e 100644
--- a/src/lib/edje/edje_private.h
+++ b/src/lib/edje/edje_private.h
@@ -327,7 +327,7 @@ typedef struct _Edje_Gfx_Filter                      Edje_Gfx_Filter;
 typedef struct _Edje_Gfx_Filter_Directory            Edje_Gfx_Filter_Directory;
 typedef struct _Edje_Color_Tree_Node                 Edje_Color_Tree_Node;
 typedef struct _Edje_Vector_Directory_Entry          Edje_Vector_Directory_Entry;
-
+typedef struct _Edje_Color_Class_Info                Edje_Color_Class_Info;
 
 typedef struct _Edje_Vibration_Sample                Edje_Vibration_Sample;
 typedef struct _Edje_Vibration_Directory             Edje_Vibration_Directory;
@@ -656,7 +656,12 @@ struct _Edje_External_Directory_Entry
 
 /*----------*/
 
-
+/*----------*/
+struct _Edje_Color_Class_Info
+{
+   Eina_List *colors;
+};
+/*----------*/
 
 /*----------*/
 
@@ -2334,6 +2339,7 @@ EAPI void _edje_edd_shutdown(void);
 
 EAPI extern Eet_Data_Descriptor *_edje_edd_edje_file;
 EAPI extern Eet_Data_Descriptor *_edje_edd_edje_part_collection;
+EAPI extern Eet_Data_Descriptor *_edje_edd_edje_color_class_info;
 
 extern Eina_Inlist     *_edje_edjes;
 
diff --git a/src/lib/elementary/elm_theme.c b/src/lib/elementary/elm_theme.c
index 7a40a4d7e9..123bc0f14e 100644
--- a/src/lib/elementary/elm_theme.c
+++ b/src/lib/elementary/elm_theme.c
@@ -521,6 +521,80 @@ _elm_theme_shutdown(void)
      }
 }
 
+
+
+
+
+static Eina_List *
+_elm_theme_file_color_class_list(Eina_List *list,
+                                 Eina_Inlist *handles)
+{
+   Eina_Stringshare *c;
+   Eina_List *ccl;
+   Eina_List *ll;
+   Elm_Theme_File *etf;
+
+   EINA_INLIST_FOREACH(handles, etf)
+     {
+        ccl = edje_mmap_color_class_used_list(etf->handle);
+        EINA_LIST_FOREACH(ccl, ll, c)
+          {
+             list = eina_list_append(list, eina_stringshare_add(c));
+          }
+        edje_file_color_class_used_free(ccl);
+     }
+   return list;
+}
+
+static Eina_Bool
+_elm_theme_color_class_list_hash_cb(const Eina_Hash *hash EINA_UNUSED,
+                                    const void *key,
+                                    void *data EINA_UNUSED,
+                                    void *fdata)
+{
+   Eina_List **list = fdata;
+
+   *list = eina_list_append(*list, eina_stringshare_add(key));
+   return EINA_TRUE;
+}
+
+EAPI Eina_List *
+elm_theme_color_class_list(Elm_Theme *th)
+{
+   Eina_List *list;
+   Eina_Hash *hash;
+   const char *s;
+
+   if (!th) th = theme_default;
+   if (!th) return NULL;
+
+   // go through all possible theme files and find collections that match
+   list = _elm_theme_file_color_class_list(NULL, th->overlay);
+   list = _elm_theme_file_color_class_list(list, th->themes);
+   list = _elm_theme_file_color_class_list(list, th->extension);
+
+   hash = eina_hash_string_superfast_new(NULL);
+   EINA_LIST_FREE(list, s)
+     {
+        if (!eina_hash_find(hash, s)) eina_hash_add(hash, s, hash);
+        eina_stringshare_del(s);
+     }
+   eina_hash_foreach(hash, _elm_theme_color_class_list_hash_cb, &list);
+   eina_hash_free(hash);
+
+   // sort the list nicely at the end
+   list = eina_list_sort(list, 0, EINA_COMPARE_CB(strcmp));
+   return list;
+}
+
+EAPI void
+elm_theme_color_class_list_free(Eina_List *list)
+{
+   const char *s;
+
+   EINA_LIST_FREE(list, s) eina_stringshare_del(s);
+}
+
 EAPI Elm_Theme *
 elm_theme_new(void)
 {
diff --git a/src/lib/elementary/elm_theme.h b/src/lib/elementary/elm_theme.h
index 7bf51d5b28..a5c55295da 100644
--- a/src/lib/elementary/elm_theme.h
+++ b/src/lib/elementary/elm_theme.h
@@ -79,6 +79,31 @@
 typedef struct _Elm_Theme Elm_Theme;
 
 /**
+ * Return a list of strings of color classes used in the given theme
+ *
+ * @param th The theme to get the reference from (NULL will be default)
+ * @return The list of color classes
+ *
+ * Free the returned list using elm_theme_color_class_list_free() when done.
+ *
+ * @ingroup Elm_Theme
+ * @sizne 1.26
+ */
+EAPI Eina_List *elm_theme_color_class_list(Elm_Theme *th);
+
+/**
+ * Free list of color classes used in the themes
+ *
+ * @param list The list to free
+ *
+ * Free the returned list returned from elm_theme_color_class_list()
+ *
+ * @ingroup Elm_Theme
+ * @sizne 1.26
+ */
+EAPI void       elm_theme_color_class_list_free(Eina_List *list);
+
+/**
  * Create a new specific theme
  *
  * This creates an empty specific theme that only uses the default theme. A