evas image: Lower ERR message to WRN and fix it

In elm_image, efl_file_get() was called on a legacy Evas Image
object, which generated an ERR message. This was way too much
noise for something that actually works.

It's best not to call efl_file_get/set API on a legacy
object, but it can be convenient for smooth code transitions
from legacy to pure eo.

Also, add safety to those APIs.

Test case: elm_test genlist dnd, start dragging anything.

2 files changed, 14 insertions, 13 deletions

diff --git a/src/lib/elementary/efl_ui_image.c b/src/lib/elementary/efl_ui_image.c
index f27d17f033..11cace6f50 100644
--- a/src/lib/elementary/efl_ui_image.c
+++ b/src/lib/elementary/efl_ui_image.c
@@ -1117,7 +1117,7 @@ _efl_ui_image_efl_file_file_get(Eo *obj EINA_UNUSED, Efl_Ui_Image_Data *sd, cons
         return;
      }
 
-   efl_file_get(sd->img, file, key);
+   evas_object_image_file_get(sd->img, file, key);
 }
 
 static Eina_Bool
diff --git a/src/lib/evas/canvas/evas_image_legacy.c b/src/lib/evas/canvas/evas_image_legacy.c
index fae5b29a26..e682041735 100644
--- a/src/lib/evas/canvas/evas_image_legacy.c
+++ b/src/lib/evas/canvas/evas_image_legacy.c
@@ -1130,42 +1130,43 @@ evas_object_image_pixels_import(Evas_Object *eo_obj, Evas_Pixel_Import_Source *p
 EAPI void
 evas_object_image_alpha_mask_set(Evas_Object *eo_obj EINA_UNUSED, Eina_Bool ismask EINA_UNUSED)
 {
-   DBG("This function is not implemented, has never been and never will be.");
+   WRN("This function is not implemented, has never been and never will be.");
    EVAS_IMAGE_LEGACY_API(eo_obj);
 }
 
-
-/* FIXME: Temporarily allow efl_file_ APIs on Evas.Image.
- * They don't belong here, as only Efl.Canvas.Image should support them.
- * Elm.Image uses them, though, instead of using the legacy APIs...
- */
-
 EOLIAN static Eina_Bool
 _evas_image_efl_file_file_set(Eo *obj, void *pd EINA_UNUSED, const char *file, const char *key)
 {
-   ERR("efl_file_set shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   WRN("efl_file_set shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   EVAS_IMAGE_API(obj, EINA_FALSE);
    return _evas_image_file_set(obj, file, key);
 }
 
 EOLIAN static void
 _evas_image_efl_file_file_get(Eo *obj, void *pd EINA_UNUSED, const char **file, const char **key)
 {
-   ERR("efl_file_get shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   WRN("efl_file_get shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   if (file) *file = NULL;
+   if (key) *key = NULL;
+   EVAS_IMAGE_API(obj);
    _evas_image_file_get(obj, file, key);
 }
 
 EOLIAN static Eina_Bool
 _evas_image_efl_file_mmap_set(Eo *obj, void *pd EINA_UNUSED, const Eina_File *f, const char *key)
 {
-   ERR("efl_file_mmap_set shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   WRN("efl_file_mmap_set shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   EVAS_IMAGE_API(obj, EINA_FALSE);
    return _evas_image_mmap_set(obj, f, key);
 }
 
-
 EOLIAN static void
 _evas_image_efl_file_mmap_get(Eo *obj, void *pd EINA_UNUSED, const Eina_File **f, const char **key)
 {
-   ERR("efl_file_mmap_get shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   WRN("efl_file_mmap_get shouldn't be used on Evas.Image. please switch to Efl.Canvas.Image");
+   if (f) *f = NULL;
+   if (key) *key = NULL;
+   EVAS_IMAGE_API(obj);
    _evas_image_mmap_get(obj, f, key);
 }