elm_image: create image object before call elm_image_object_get

Summary:
image object was created in group_add before 868e3308. if you call
elm_image_object_get before file_set, you can get NULL.
this patch avoid that.

Test Plan:
obj = elm_image_add(...);
img = elm_image_object_get(obj);

img should not be NULL.

Reviewers: Hermet, zmike

Reviewed By: zmike

Subscribers: JackDanielZ, cedric, #reviewers, #committers, zmike

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D6828

src/lib/elementary/efl_ui_image.c

@@ -2128,6 +2128,9 @@ elm_image_object_get(const Evas_Object *obj)
 {
    EFL_UI_IMAGE_CHECK(obj) NULL;
    EFL_UI_IMAGE_DATA_GET(obj, sd);
+   if (!sd->img)
+     sd->img = _img_new((Evas_Object *)obj);
+
    return sd->img;
 }
 

src/lib/elementary/elm_image_legacy.h

@@ -434,7 +434,7 @@ EAPI Elm_Image_Orient elm_image_orient_get(const Evas_Object *obj);
  *
  * @note Be careful to not manipulate it, as it is under control of elementary.
  *
- * @return The inlined image object, or NULL if none exists
+ * @return The inlined image object.
  *
  * @ingroup Elm_Image
  */

src/tests/elementary/elm_test_image.c

@@ -213,6 +213,19 @@ EFL_START_TEST (elm_image_evas_object_color_set)
 }
 EFL_END_TEST
 
+EFL_START_TEST (elm_image_evas_image_get)
+{
+   Evas_Object *win, *image, *obj;
+
+   win = win_add(NULL, "image", ELM_WIN_BASIC);
+
+   image = elm_image_add(win);
+   obj = elm_image_object_get(image);
+
+   ck_assert(obj);
+}
+EFL_END_TEST
+
 EFL_START_TEST (efl_ui_image_icon)
 {
    Evas_Object *win, *image;
@@ -244,5 +257,6 @@ void elm_test_image(TCase *tc)
    tcase_add_test(tc, elm_image_async_path);
    tcase_add_test(tc, elm_image_async_mmap);
    tcase_add_test(tc, elm_image_evas_object_color_set);
+   tcase_add_test(tc, elm_image_evas_image_get);
    tcase_add_test(tc, efl_ui_image_icon);
 }