External objects support by Brian 'rephorm' Mattern

Since we are on a freeze, the patch goes on updated to current svn, but without changing its API. After the freeze some things will be added, and some will change :)


git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/edje@43302 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

8 files changed, 95 insertions, 12 deletions

diff --git a/src/lib/Edje.h b/src/lib/Edje.h
index 7eb0bf2..b6f9fc1 100644
--- a/src/lib/Edje.h
+++ b/src/lib/Edje.h
@@ -90,7 +90,8 @@ typedef enum _Edje_Part_Type
    EDJE_PART_TYPE_GROUP     = 7,
    EDJE_PART_TYPE_BOX       = 8,
    EDJE_PART_TYPE_TABLE     = 9,
-   EDJE_PART_TYPE_LAST      = 10
+   EDJE_PART_TYPE_EXTERNAL  = 10,
+   EDJE_PART_TYPE_LAST      = 11
 } Edje_Part_Type;
 
 typedef enum _Edje_Text_Effect
@@ -226,6 +227,37 @@ enum
      EDJE_LOAD_ERROR_RECURSIVE_REFERENCE = 9
 };
 
+enum _Edje_External_Param_Type
+{
+  EDJE_EXTERNAL_PARAM_TYPE_INT,
+  EDJE_EXTERNAL_PARAM_TYPE_DOUBLE,
+  EDJE_EXTERNAL_PARAM_TYPE_STRING,
+  EDJE_EXTERNAL_PARAM_TYPE_MAX
+};
+typedef enum _Edje_External_Param_Type Edje_External_Param_Type;
+
+struct _Edje_External_Param
+{
+  const char *name;
+  Edje_External_Param_Type type;
+  // XXX these could be in a union, but eet doesn't support them (or does it?)
+  int i;
+  double d;
+  const char *s;
+};
+typedef struct _Edje_External_Param Edje_External_Param;
+
+struct _Edje_External_Type
+{
+  Evas_Object *(*add) (void *data, Evas *evas, Evas_Object *parent, const Eina_List *params);
+  void (*state_set) (void *data, Evas_Object *obj, const Eina_List *from_params, const Eina_List *to_params, float pos);
+  void (*signal_emit) (void *data, Evas_Object *obj, const char *emission, const char *source);
+
+  void *data;
+};
+typedef struct _Edje_External_Type Edje_External_Type;
+
+
 typedef void (*Edje_Signal_Cb) (void *data, Evas_Object *obj, const char *emission, const char *source);
 typedef void (*Edje_Text_Change_Cb) (void *data, Evas_Object *obj, const char *part);
 typedef void (*Edje_Message_Handler_Cb) (void *data, Evas_Object *obj, Edje_Message_Type type, int id, void *msg);
@@ -365,6 +397,11 @@ extern "C" {
 
    EAPI void         edje_message_signal_process        (void);
 
+   /* edje_external.c */
+  EAPI Eina_Bool edje_external_type_register(const char *type_name, Edje_External_Type *type_info);
+  EAPI Eina_Bool edje_external_type_unregister(const char *type_name);
+  EAPI Edje_External_Param *edje_external_param_find(const Eina_List *params, const char *key);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index 6a4c7d5..62a5bd7 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -42,7 +42,8 @@ edje_textblock_styles.c \
 edje_edit.c \
 edje_script_only.c \
 edje_lua_script_only.c \
-edje_entry.c
+edje_entry.c \
+edje_external.c
 
 libedje_la_LIBADD = @EDJE_LIBS@ @ECORE_IMF_LIBS@ -lm
 libedje_la_LDFLAGS = -no-undefined @lt_enable_auto_import@ -version-info @version_info@ @release_info@
diff --git a/src/lib/edje_calc.c b/src/lib/edje_calc.c
index 2d2cc86..c4b447f 100644
--- a/src/lib/edje_calc.c
+++ b/src/lib/edje_calc.c
@@ -1874,6 +1874,7 @@ _edje_part_recalc(Edje *ed, Edje_Real_Part *ep, int flags)
 	      /* move and resize are needed for all previous object => no break here. */
 	   case EDJE_PART_TYPE_SWALLOW:
 	   case EDJE_PART_TYPE_GROUP:
+	   case EDJE_PART_TYPE_EXTERNAL:
 	      /* visibility and color have no meaning on SWALLOW and GROUP part. */
 	      evas_object_move(ep->object, ed->x + pf->x, ed->y + pf->y);
 	      evas_object_resize(ep->object, pf->w, pf->h);
@@ -1903,6 +1904,9 @@ _edje_part_recalc(Edje *ed, Edje_Real_Part *ep, int flags)
 	   case EDJE_PART_TYPE_TABLE:
 	      _edje_table_recalc_apply(ed, ep, pf, chosen_desc);
 	      break;
+	   case EDJE_PART_TYPE_EXTERNAL:
+	      _edje_external_recalc_apply(ed, ep, pf, chosen_desc);
+	      break;
 	   case EDJE_PART_TYPE_RECTANGLE:
 	   case EDJE_PART_TYPE_SWALLOW:
 	   case EDJE_PART_TYPE_GROUP:
diff --git a/src/lib/edje_data.c b/src/lib/edje_data.c
index c913d60..c33c0b4 100644
--- a/src/lib/edje_data.c
+++ b/src/lib/edje_data.c
@@ -26,6 +26,7 @@ EAPI Eet_Data_Descriptor *_edje_edd_edje_part_collection = NULL;
 EAPI Eet_Data_Descriptor *_edje_edd_edje_part = NULL;
 EAPI Eet_Data_Descriptor *_edje_edd_edje_part_description = NULL;
 EAPI Eet_Data_Descriptor *_edje_edd_edje_part_image_id = NULL;
+EAPI Eet_Data_Descriptor *_edje_edd_edje_external_param = NULL;
 
 #define FREED(eed) \
    if (eed) \
@@ -59,6 +60,7 @@ _edje_edd_shutdown(void)
    FREED(_edje_edd_edje_part);
    FREED(_edje_edd_edje_part_description);
    FREED(_edje_edd_edje_part_image_id);
+   FREED(_edje_edd_edje_external_param);
 }
 
 void
@@ -213,6 +215,15 @@ _edje_edd_init(void)
      eet_data_descriptor_file_new(&eddc);
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_part_image_id, Edje_Part_Image_Id, "id", id, EET_T_INT);
 
+   EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Edje_External_Param);
+   _edje_edd_edje_external_param =
+     eet_data_descriptor_file_new(&eddc);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_external_param, Edje_External_Param, "name", name, EET_T_STRING);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_external_param, Edje_External_Param, "type", type, EET_T_INT);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_external_param, Edje_External_Param, "i", i, EET_T_INT);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_external_param, Edje_External_Param, "d", d, EET_T_DOUBLE);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_external_param, Edje_External_Param, "s", s, EET_T_STRING);
+
    EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Edje_Part_Description);
    _edje_edd_edje_part_description =
      eet_data_descriptor_file_new(&eddc);
@@ -318,6 +329,7 @@ _edje_edd_init(void)
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_part_description, Edje_Part_Description, "table.align.y", table.align.y, EET_T_DOUBLE);
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_part_description, Edje_Part_Description, "table.padding.x", table.padding.x, EET_T_INT);
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_part_description, Edje_Part_Description, "table.padding.y", table.padding.y, EET_T_INT);
+   EET_DATA_DESCRIPTOR_ADD_LIST(_edje_edd_edje_part_description, Edje_Part_Description, "external_params", external_params, _edje_edd_edje_external_param);
 
    EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Edje_Pack_Element);
    _edje_edd_edje_pack_element =
diff --git a/src/lib/edje_load.c b/src/lib/edje_load.c
index 53e7a23..4f0a08b 100644
--- a/src/lib/edje_load.c
+++ b/src/lib/edje_load.c
@@ -399,6 +399,7 @@ _edje_object_file_set_internal(Evas_Object *obj, const char *file, const char *g
 			break;
 		     case EDJE_PART_TYPE_SWALLOW:
 		     case EDJE_PART_TYPE_GROUP:
+		     case EDJE_PART_TYPE_EXTERNAL:
 			rp->object = evas_object_rectangle_add(ed->evas);
 			evas_object_color_set(rp->object, 0, 0, 0, 0);
 			evas_object_pass_events_set(rp->object, 1);
@@ -595,6 +596,13 @@ _edje_object_file_set_internal(Evas_Object *obj, const char *file, const char *g
 			     source = pack_it->source;
 			  }
 			break;
+		     case EDJE_PART_TYPE_EXTERNAL:
+			  {
+			     Evas_Object *child_obj;
+			     child_obj = _edje_external_type_add(rp->part->source, evas_object_evas_get(ed->obj), ed->obj, rp->part->default_desc->external_params);
+			     if (child_obj) _edje_real_part_swallow(rp, child_obj);
+			  }
+			continue;
 		     default:
 			continue;
 		    }
@@ -839,7 +847,7 @@ _edje_file_del(Edje *ed)
 
                   /* Objects swallowed by the app do not get deleted,
                    but those internally swallowed (GROUP type) do. */
-		  if (rp->part->type == EDJE_PART_TYPE_GROUP)
+		  if (rp->part->type == EDJE_PART_TYPE_GROUP || rp->part->type == EDJE_PART_TYPE_EXTERNAL)
 		    evas_object_del(rp->swallowed_object);
 
 		  rp->swallowed_object = NULL;
@@ -1138,6 +1146,8 @@ _edje_collection_free_part_description_free(Edje_Part_Description *desc, unsigne
 
    EINA_LIST_FREE(desc->image.tween_list, pi)
      free(pi);
+   if (desc->external_params)
+     _edje_external_params_free(desc->external_params, free_strings);
    if (free_strings)
      {
 	if (desc->color_class)     eina_stringshare_del(desc->color_class);
diff --git a/src/lib/edje_main.c b/src/lib/edje_main.c
index aeeffef..33faf50 100644
--- a/src/lib/edje_main.c
+++ b/src/lib/edje_main.c
@@ -96,6 +96,7 @@ edje_init(void)
    _edje_edd_init();
    _edje_text_init();
    _edje_box_init();
+   _edje_external_init();
    _edje_lua_init();
    _edje_message_init();
 
@@ -126,6 +127,7 @@ edje_init(void)
    _edje_real_part_mp = NULL;
    _edje_message_shutdown();
    _edje_lua_shutdown();
+   _edje_external_shutdown();
    _edje_box_shutdown();
    _edje_text_class_members_free();
    _edje_text_class_hash_free();
@@ -183,6 +185,7 @@ edje_shutdown(void)
 
    _edje_message_shutdown();
    _edje_lua_shutdown();
+   _edje_external_shutdown();
    _edje_box_shutdown();
    _edje_text_class_members_free();
    _edje_text_class_hash_free();
diff --git a/src/lib/edje_private.h b/src/lib/edje_private.h
index 9892068..4643300 100644
--- a/src/lib/edje_private.h
+++ b/src/lib/edje_private.h
@@ -567,6 +567,7 @@ struct _Edje_Part_Description
    } table;
 
    Edje_Color color, color2, color3;  /* color for rect or text, shadow etc. */
+   Eina_List *external_params; /* parameters for external objects */
 
    unsigned char     visible; /* is it shown */
 };
@@ -1338,4 +1339,11 @@ void _edje_entry_cursor_geometry_get(Edje_Real_Part *rp, Evas_Coord *cx, Evas_Co
 void _edje_entry_select_allow_set(Edje_Real_Part *rp, Eina_Bool allow);
 void _edje_entry_select_abort(Edje_Real_Part *rp);
 
+void _edje_external_init();
+void _edje_external_shutdown();
+Evas_Object *_edje_external_type_add(const char *type_name, Evas *evas, Evas_Object *parent, const Eina_List *params);
+void _edje_external_signal_emit(Evas_Object *obj, const char *emission, const char *source);
+void _edje_external_params_free(Eina_List *params, unsigned int free_strings);
+void _edje_external_recalc_apply(Edje *ed, Edje_Real_Part *ep, Edje_Calc_Params *params, Edje_Part_Description *chosen_desc);
+
 #endif
diff --git a/src/lib/edje_program.c b/src/lib/edje_program.c
index b804992..066603e 100644
--- a/src/lib/edje_program.c
+++ b/src/lib/edje_program.c
@@ -944,8 +944,8 @@ _edje_emit(Edje *ed, const char *sig, const char *src)
      {
         size_t length;
         char *part;
-       /* the signal contains a colon, split the signal into "group:signal",
-	* and deliver it to "group"
+       /* the signal contains a colon, split the signal into "part:signal",
+	* and deliver it to "part" (if there is a GROUP or EXTERNAL part named "part")
 	*/
        length = strlen(sig) + 1;
        part = alloca(length);
@@ -962,17 +962,25 @@ _edje_emit(Edje *ed, const char *sig, const char *src)
             for (i = 0; i < ed->table_parts_size; i++)
               {
                  Edje_Real_Part *rp = ed->table_parts[i];
-                 if ((rp->part->type == EDJE_PART_TYPE_GROUP) &&
+                 if ((rp->part->type == EDJE_PART_TYPE_GROUP || rp->part->type == EDJE_PART_TYPE_EXTERNAL) &&
                      (rp->swallowed_object) &&
                      (rp->part) && (rp->part->name) &&
                      (strcmp(rp->part->name, part) == 0))
                    {
-                      Edje *ed2 = _edje_fetch(rp->swallowed_object);
-                      if (ed2) _edje_emit(ed2, newsig, src);
-                      return; /* stop processing.
-			       * XXX maybe let signal be processed anyway?
-			       * XXX in this case, just comment this line
-			       */
+		      if (rp->part->type == EDJE_PART_TYPE_GROUP)
+			{
+			   Edje *ed2 = _edje_fetch(rp->swallowed_object);
+			   if (ed2) _edje_emit(ed2, newsig, src);
+			   return; /* stop processing.
+				    * XXX maybe let signal be processed anyway?
+				    * XXX in this case, just comment this line
+				    */
+			}
+		      else if (rp->part->type == EDJE_PART_TYPE_EXTERNAL)
+			{
+			   _edje_external_signal_emit(rp->swallowed_object, newsig, src);
+			   return;
+			}
                    }
               }
          }