Fix bug that input cannot be deleted on non-English keybaord such as Japanese

and Chinese keyboard.

Bug: 110564298
Test: manual
PiperOrigin-RevId: 202027152
Change-Id: If27d23fb04abe6db49748dec68c4cd9be5f11fb1

1 files changed, 7 insertions, 4 deletions

diff --git a/java/com/android/incallui/rtt/impl/RttChatFragment.java b/java/com/android/incallui/rtt/impl/RttChatFragment.java
index 36235df19..73adb9f1c 100644
--- a/java/com/android/incallui/rtt/impl/RttChatFragment.java
+++ b/java/com/android/incallui/rtt/impl/RttChatFragment.java
@@ -177,10 +177,13 @@ public class RttChatFragment extends Fragment
 
     editText.setOnKeyListener(
         (v, keyCode, event) -> {
-          // This is only triggered when input method doesn't handle delete key, which means the
-          // current
-          // input box is empty.
-          if (keyCode == KeyEvent.KEYCODE_DEL && event.getAction() == KeyEvent.ACTION_DOWN) {
+          // This is only triggered when input method doesn't handle delete key, which usually means
+          // the current input box is empty.
+          // On non-English keyboard delete key could be passed here so we still need to check if
+          // the input box is empty.
+          if (keyCode == KeyEvent.KEYCODE_DEL
+              && event.getAction() == KeyEvent.ACTION_DOWN
+              && TextUtils.isEmpty(editText.getText())) {
             String lastMessage = adapter.retrieveLastLocalMessage();
             if (lastMessage != null) {
               resumeInput(lastMessage);