From 6e0d639e70798ccbf805a540775e90f41dadae08 Mon Sep 17 00:00:00 2001
From: wangqi <wangqi@google.com>
Date: Mon, 30 Apr 2018 16:22:34 -0700
Subject: Don't save transcript if it's empty.

Thre is no point to save an empty transcript.
This change will also prevent showing transcript button in call details.

Bug: 70177426
Test: manual
PiperOrigin-RevId: 194863630
Change-Id: Iee4e5c0929c3ebfc75377ed0f529934a6cfe01f5
---
 java/com/android/incallui/call/DialerCall.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/java/com/android/incallui/call/DialerCall.java b/java/com/android/incallui/call/DialerCall.java
index d736edc94..1c2744644 100644
--- a/java/com/android/incallui/call/DialerCall.java
+++ b/java/com/android/incallui/call/DialerCall.java
@@ -1102,6 +1102,10 @@ public class DialerCall implements VideoTechListener, StateChangedListener, Capa
     } catch (IOException e) {
       LogUtil.e("DialerCall.saveRttTranscript", "error when reading remaining message", e);
     }
+    // Don't save transcript if it's empty.
+    if (rttTranscript.getMessagesCount() == 0) {
+      return;
+    }
     Futures.addCallback(
         RttTranscriptUtil.saveRttTranscript(context, rttTranscript),
         new DefaultFutureCallback<>(),
-- 
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