elc_popup: add null pointer check before creating content text object

Summary:
If elm_object_text_set() function is called twice,
elm_obj_containter_content_set(CONTENT_PART, sd->text_content_obj)
function makes sd->text_content_obj null since sd->text_content_obj already exists.

Test Plan:
1. run elementary_test(popup) and excute "popup-center-text + 1button (check hide, show)"
2. print sd->text_content_obj value in content_text_set()
3. push hide button and excute the example again
4. check sd->text_content_obj value if null or not

Reviewers: woohyun, Hermet, raster

Reviewed By: raster

Differential Revision: https://phab.enlightenment.org/D2225

1 files changed, 7 insertions, 0 deletions

diff --git a/src/lib/elc_popup.c b/src/lib/elc_popup.c
index e0fdd9c17..7fc04eb61 100644
--- a/src/lib/elc_popup.c
+++ b/src/lib/elc_popup.c
@@ -886,6 +886,13 @@ _content_text_set(Evas_Object *obj,
    else eo_do(sd->main_layout, elm_obj_container_content_set(CONTENT_PART, sd->content_area));
    if (!text) goto end;
 
+   if (sd->text_content_obj)
+     {
+        eo_do(sd->content_area, sd->text_content_obj = elm_obj_container_content_unset(CONTENT_PART));
+        evas_object_del(sd->text_content_obj);
+        sd->text_content_obj = NULL;
+     }
+
    sd->text_content_obj = elm_label_add(sd->content_area);
    snprintf(style, sizeof(style), "popup/%s", elm_widget_style_get(obj));
    elm_object_style_set(sd->text_content_obj, style);