elementary textpath: support legacy APIs

Summary:
Efl.Ui.Textpath was added when we were developing new interfaces.
So, basically, it does not support 'legacy' APIs. ex) elm_textpath_add
But, in Tizen, the legacy APIs had been delivered in old version of EFL.
To reduce maintainning cost between the platforms, this patch will be helpful.
@feature

Test Plan: N/A

Reviewers: Hermet, woohyun, zmike, cedric, herdsman

Reviewed By: Hermet

Subscribers: #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D7033

src/Makefile_Elementary.am

@@ -56,6 +56,7 @@ elm_public_eolian_files = \
 	lib/elementary/efl_ui_text_factory_emoticons.eo \
 	lib/elementary/efl_ui_text_factory_fallback.eo \
 	lib/elementary/efl_ui_textpath.eo \
+	lib/elementary/efl_ui_textpath_legacy.eo \
 	lib/elementary/efl_ui_translatable.eo \
 	lib/elementary/efl_ui_clock.eo \
 	lib/elementary/efl_ui_cursor.eo \
@@ -630,6 +631,8 @@ includesub_HEADERS = \
 	lib/elementary/elm_sys_notify.h \
 	lib/elementary/elm_table.h \
 	lib/elementary/elm_table_legacy.h \
+	lib/elementary/elm_textpath.h \
+	lib/elementary/elm_textpath_legacy.h \
 	lib/elementary/elm_theme.h \
 	lib/elementary/elm_thumb.h \
 	lib/elementary/elm_thumb_common.h \

src/lib/elementary/Elementary.h

@@ -160,7 +160,6 @@ typedef Eo Efl_Ui_Focus_Manager;
 # include <efl_ui_focus_manager_sub.eo.h>
 # include <efl_ui_focus_manager_root_focus.eo.h>
 # include <efl_ui_focus_util.eo.h>
-# include <efl_ui_textpath.eo.h>
 # include <efl_ui_translatable.eo.h>
 # include <efl_ui_focus_composition.eo.h>
 # include <efl_ui_focus_layer.eo.h>
@@ -269,6 +268,7 @@ typedef Eo Efl_Ui_Focus_Manager;
 #include <elm_spinner.h>
 #include <elm_store.h>
 #include <elm_table.h>
+#include <elm_textpath.h>
 #include <elm_theme.h>
 #include <elm_thumb.h>
 #include <elm_toolbar.h>

src/lib/elementary/efl_ui_textpath.c

@@ -758,3 +758,32 @@ ELM_PART_OVERRIDE_TEXT_GET(efl_ui_textpath, EFL_UI_TEXTPATH, Efl_Ui_Textpath_Dat
       EFL_CANVAS_GROUP_ADD_OPS(efl_ui_textpath)
 
 #include "efl_ui_textpath.eo.c"
+
+#include "efl_ui_textpath_legacy.eo.h"
+
+#define MY_CLASS_NAME_LEGACY "elm_textpath"
+/* Legacy APIs */
+
+static void
+_efl_ui_textpath_legacy_class_constructor(Efl_Class *klass)
+{
+   evas_smart_legacy_type_register(MY_CLASS_NAME_LEGACY, klass);
+}
+
+EOLIAN static Eo *
+_efl_ui_textpath_legacy_efl_object_constructor(Eo *obj, void *_pd EINA_UNUSED)
+{
+   obj = efl_constructor(efl_super(obj, EFL_UI_TEXTPATH_LEGACY_CLASS));
+   efl_canvas_object_type_set(obj, MY_CLASS_NAME_LEGACY);
+   return obj;
+}
+
+EAPI Evas_Object *
+elm_textpath_add(Evas_Object *parent)
+{
+   EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
+   return elm_legacy_add(EFL_UI_TEXTPATH_LEGACY_CLASS, parent);
+}
+
+#include "efl_ui_textpath_legacy.eo.c"
+

src/lib/elementary/efl_ui_textpath.eo

@@ -7,6 +7,7 @@ enum Efl.Ui.Textpath_Direction {
 class Efl.Ui.Textpath (Efl.Ui.Layout.Object, Efl.Text, Efl.Gfx.Path)
 {
    [[Efl Ui Textpath class]]
+   legacy_prefix: elm_textpath;
    methods {
       circle_set {
          [[Set a circle with given center, radius, and start angle.]]

src/lib/elementary/efl_ui_textpath_legacy.eo

@@ -0,0 +1,9 @@
+class Efl.Ui.Textpath_Legacy (Efl.Ui.Textpath, Efl.Ui.Legacy)
+{
+   [[Textpath widget]]
+   data: null;
+   implements {
+      class.constructor;
+      Efl.Object.constructor;
+   }
+}

src/lib/elementary/elm_textpath.h

@@ -0,0 +1,15 @@
+/**
+ * @defgroup Elm_Textpath Textpath
+ * @ingroup Elementary
+ */
+
+#ifdef EFL_EO_API_SUPPORT
+#include "efl_ui_textpath.eo.h"
+#define EFL_UI_RADIO_EVENT_CHANGED EFL_UI_NSTATE_EVENT_CHANGED
+#endif
+#ifndef EFL_NOLEGACY_API_SUPPORT
+#include "elm_textpath_legacy.h"
+#endif
+/**
+ * @}
+ */

src/lib/elementary/elm_textpath_legacy.h

@@ -0,0 +1,15 @@
+typedef Eo Elm_Textpath;
+
+/**
+ * @brief Add a new textpath to the parent
+ *
+ * @param[in] parent The parent object
+ * @return The new object or NULL if it cannot be created
+ *
+ * @ingroup Elm_Textpath
+ *
+ * @since 1.22
+ */
+EAPI Evas_Object                 *elm_textpath_add(Evas_Object *parent);
+
+#include "efl_ui_textpath.eo.legacy.h"