From 991de3f7e4a017be7c4ddf393dcc7029a560a94a Mon Sep 17 00:00:00 2001
From: wareya <wareya@gmail.com>
Date: Sun, 9 Feb 2020 04:15:04 -0500
Subject: [PATCH] fix selection focus bug

---
 texthook.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/texthook.js b/texthook.js
index eb83a3c..2709a5e 100644
--- a/texthook.js
+++ b/texthook.js
@@ -1798,7 +1798,9 @@ function grab_more_text(textNode, selection_range, direction = 1)
 
 function grab_text(textNode, offset, elemental)
 {
-    let selection_range = window.getSelection().getRangeAt(0);
+    let selection_range = window.getSelection();
+    if(selection_range)
+        selection_range = selection_range.getRangeAt(0);
     
     if(selection_filter_enabled(selection_range) && selection_rejects_node(selection_range, textNode, offset))
         selection_range = undefined;
@@ -2075,11 +2077,15 @@ function update(event)
     reset_nodes();
     if (settings.only_selection)
     {
-        if(selection_rejects_node(window.getSelection().getRangeAt(0), textNode, offset))
+        try
         {
-            lookup_cancel();
-            return;
+            if(selection_rejects_node(window.getSelection().getRangeAt(0), textNode, offset))
+            {
+                lookup_cancel();
+                return;
+            }
         }
+        catch(e){ }
     }
     
     // if there was text, use it