[elm_datetime] Corrected the logic for datetime values comparison.

Summary:
Datetime value should be compared earlier to avoid unnecessary code execution.
Also added logic for single field comparion which will avoid to compare all fields when field limit is set.

Signed Off By: Seongjun Yim <se201.yim@samsung.com>
Signed Off By: Hyunseok Yang <hs0219.yang@samsung.com>
Signed Off By: Subodh Kumar <s7158.kumar@samsung.com>

Test Plan: NA

Reviewers: shilpasingh, raster

Reviewed By: shilpasingh, raster

Subscribers: poornima.srinivasan, govi, rajeshps

Differential Revision: https://phab.enlightenment.org/D2202

diff --git a/legacy/elementary/src/lib/elm_datetime.c b/legacy/elementary/src/lib/elm_datetime.c
index 6948e45..28f61fa 100644 (file)
--- a/legacy/elementary/src/lib/elm_datetime.c
+++ b/legacy/elementary/src/lib/elm_datetime.c
@@ -593,6 +593,20 @@ _date_cmp(struct tm *time1,
    return EINA_TRUE;
 }
 
+static Eina_Bool
+_field_cmp(Elm_Datetime_Field_Type field_type,
+          struct tm *time1,
+          struct tm *time2)
+{
+   DATETIME_TM_ARRAY(timearr1, time1);
+   DATETIME_TM_ARRAY(timearr2, time2);
+
+   if (*timearr1[field_type] != *timearr2[field_type])
+     return EINA_FALSE;
+   else
+     return EINA_TRUE;
+}
+
 // validates curr_time/min_limt/max_limit according to the newly set value
 static void
 _validate_datetime_limits(struct tm *time1,
@@ -1003,7 +1017,7 @@ _elm_datetime_field_limit_set(Eo *obj, Elm_Datetime_Data *sd, Elm_Datetime_Field
 
    _apply_field_limits(obj);
 
-   if (!_date_cmp(&old_time, &sd->curr_time))
+   if (!_field_cmp(fieldtype, &old_time, &sd->curr_time))
      evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 }
 
@@ -1019,11 +1033,9 @@ _elm_datetime_value_get(Eo *obj EINA_UNUSED, Elm_Datetime_Data *sd, struct tm *c
 EOLIAN static Eina_Bool
 _elm_datetime_value_set(Eo *obj, Elm_Datetime_Data *sd, const struct tm *newtime)
 {
-   struct tm old_time;
-
    EINA_SAFETY_ON_NULL_RETURN_VAL(newtime, EINA_FALSE);
 
-   old_time = sd->curr_time;
+   if (_date_cmp(&sd->curr_time, newtime)) return EINA_TRUE;
    sd->curr_time = *newtime;
    // apply default field restrictions for curr_time
    _apply_range_restrictions(&sd->curr_time);
@@ -1032,8 +1044,7 @@ _elm_datetime_value_set(Eo *obj, Elm_Datetime_Data *sd, const struct tm *newtime
    _validate_datetime_limits(&sd->max_limit, &sd->curr_time, EINA_TRUE);
    _apply_field_limits(obj);
 
-   if (!_date_cmp(&old_time, &sd->curr_time))
-     evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
+   evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 
    return EINA_TRUE;
 }
@@ -1054,6 +1065,7 @@ _elm_datetime_value_min_set(Eo *obj, Elm_Datetime_Data *sd, const struct tm *min
 
    EINA_SAFETY_ON_NULL_RETURN_VAL(mintime, EINA_FALSE);
 
+   if (_date_cmp(&sd->min_limit, mintime)) return EINA_TRUE;
    sd->min_limit = *mintime;
    old_time = sd->curr_time;
    // apply default field restrictions for min_limit
@@ -1085,6 +1097,7 @@ _elm_datetime_value_max_set(Eo *obj, Elm_Datetime_Data *sd, const struct tm *max
 
    EINA_SAFETY_ON_NULL_RETURN_VAL(maxtime, EINA_FALSE);
 
+   if (_date_cmp(&sd->max_limit, maxtime)) return EINA_TRUE;
    sd->max_limit = *maxtime;
    old_time = sd->curr_time;
    // apply default field restrictions for max_limit