Ignore prediction_hint request if hint string is NULL or empty

Need to consider the case when the application requests with
NULL or empty prediction hint string on purpose.
We might need to update candidate strings in those cases also.

Change-Id: I31ffc0b7d8b8704e8a068c5edce9e30959830468

diff --git a/src/ise.cpp b/src/ise.cpp
index ea1abc7..e2ad5b0 100644 (file)
--- a/src/ise.cpp
+++ b/src/ise.cpp
@@ -2373,15 +2373,20 @@ static void ime_app_process_input_device_event_cb(ime_input_device_type_e device
 
 static void ime_app_prediction_hint_set_cb(const char *prediction_hint, void *user_data)
 {
-    LOGD("prediction hint : %s\n", prediction_hint);
     char *sender = "mms";
     char *caller_id = "mms";
     char *hint = (char *)prediction_hint;
-    input_smartreply_init(caller_id, sender, hint);
-    input_smartreply_set_notify(_input_smartreply_notify_cb, NULL);
 
-    if (input_smartreply_is_enabled())
-        input_smartreply_get_reply_async();
+    if (!prediction_hint) return;
+    LOGD("prediction hint : %s\n", prediction_hint);
+
+    if (strlen(prediction_hint) > 0) {
+        input_smartreply_init(caller_id, sender, hint);
+        input_smartreply_set_notify(_input_smartreply_notify_cb, NULL);
+
+        if (input_smartreply_is_enabled())
+            input_smartreply_get_reply_async();
+    }
 }
 
 static void ime_app_mime_type_set_cb(const char *mime_types, void *user_data)