Canvas image: add Efl.Canvas.Text.Factory + use in Ui.Text

This interface has a simple 'create' method to create Efl.Canvas.Object
given a key.
This is used higher-up in Ui.Text in the next commit.

Ui text: add ability to set item factories

Added API to set an item factory object.
This is similar to the previous item providers (that worked with
callbacks).

You instantiate a factory object and set it on the Ui.Text object.
Each factory implements the "create" method from
Efl.Canvas.Text.Item_Factory.

This also includes 3 public factories (Image, Emoticon and Fallback):
  - Image factory: creates images from added entries (key strings)
  - Emoticon factory: creates emoticons by querying the theme
  - Fallback: creates image, then falls back to emoticon

If no factory is set, then the fallback (internal) factory is used.

See the added "Ui.text Item Factory" test in elementary_test for an
example of usage.

@feature

1 files changed, 52 insertions, 0 deletions

diff --git a/src/lib/elementary/efl_ui_text_factory_emoticons.c b/src/lib/elementary/efl_ui_text_factory_emoticons.c
new file mode 100644
index 0000000000..55818af33d
--- /dev/null
+++ b/src/lib/elementary/efl_ui_text_factory_emoticons.c
@@ -0,0 +1,52 @@
+#ifdef HAVE_CONFIG_H
+# include "elementary_config.h"
+#endif
+
+#include <Elementary.h>
+#include <Elementary_Cursor.h>
+#include "elm_priv.h"
+
+#define MY_CLASS EFL_UI_TEXT_FACTORY_EMOTICONS_CLASS
+
+typedef struct _Efl_Ui_Text_Factory_Emoticons_Data Efl_Ui_Text_Factory_Emoticons_Data;
+
+struct _Efl_Ui_Text_Factory_Emoticons_Data
+{
+   const char *name;
+};
+
+EOLIAN static Eo *
+_efl_ui_text_factory_emoticons_efl_object_constructor(Eo *obj,
+     Efl_Ui_Text_Factory_Emoticons_Data *pd EINA_UNUSED)
+{
+   obj = efl_constructor(efl_super(obj, MY_CLASS));
+   return obj;
+}
+
+EOLIAN static void
+_efl_ui_text_factory_emoticons_efl_object_destructor(Eo *obj,
+     Efl_Ui_Text_Factory_Emoticons_Data *pd EINA_UNUSED)
+{
+   efl_destructor(efl_super(obj, MY_CLASS));
+}
+
+
+EOLIAN static Efl_Canvas_Object
+*_efl_ui_text_factory_emoticons_efl_canvas_text_factory_create(
+      Eo *obj EINA_UNUSED,
+      Efl_Ui_Text_Factory_Emoticons_Data *pd EINA_UNUSED,
+      Efl_Canvas_Object *object,
+      const char *key)
+{
+   Eo *o;
+   const char *style = elm_widget_style_get(object);
+
+   o = edje_object_add(evas_object_evas_get(object));
+   if (!_elm_theme_object_set
+         (object, o, "text", key, style))
+     _elm_theme_object_set
+       (object, o, "text/emoticon", "wtf", style);
+   return o;
+}
+
+#include "efl_ui_text_factory_emoticons.eo.c"