From dc8f103ca845bc5657a816252ebbdc68a5a2b32e Mon Sep 17 00:00:00 2001
From: Jason Simmons <jason-simmons@users.noreply.github.com>
Date: Mon, 31 Jul 2017 16:18:27 -0700
Subject: [PATCH] Check for an empty selection in deleteSurroundingText
 (flutter/engine#3938)

Fixes https://github.com/flutter/flutter/issues/11437
---
 .../io/flutter/plugin/editing/InputConnectionAdaptor.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/engine/src/flutter/shell/platform/android/io/flutter/plugin/editing/InputConnectionAdaptor.java b/engine/src/flutter/shell/platform/android/io/flutter/plugin/editing/InputConnectionAdaptor.java
index a70e1e0cfc..4f2088fdf7 100644
--- a/engine/src/flutter/shell/platform/android/io/flutter/plugin/editing/InputConnectionAdaptor.java
+++ b/engine/src/flutter/shell/platform/android/io/flutter/plugin/editing/InputConnectionAdaptor.java
@@ -90,6 +90,10 @@ class InputConnectionAdaptor extends BaseInputConnection {
 
     @Override
     public boolean deleteSurroundingText(int beforeLength, int afterLength) {
+        if (Selection.getSelectionStart(mEditable) == -1 ||
+            Selection.getSelectionStart(mEditable) == -1)
+            return true;
+
         boolean result = super.deleteSurroundingText(beforeLength, afterLength);
         updateEditingState();
         return result;