From ad0dca7bb12d13545b559e9c738fcc0767ba20d5 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sat, 31 Aug 2019 14:57:24 -0400
Subject: Make the imposter element tracked using TextSourceRange

---
 ext/mixed/js/display.js | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

(limited to 'ext/mixed/js')

diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index a2707bd0..4620e198 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -84,16 +84,22 @@ class Display {
             if (textSource === null) {
                 return false;
             }
-            textSource.setEndOffset(this.options.scanning.length);
 
-            const {definitions, length} = await apiTermsFind(textSource.text());
-            if (definitions.length === 0) {
-                return false;
-            }
+            let definitions, length, sentence;
+            try {
+                textSource.setEndOffset(this.options.scanning.length);
 
-            textSource.setEndOffset(length);
+                ({definitions, length} = await apiTermsFind(textSource.text()));
+                if (definitions.length === 0) {
+                    return false;
+                }
 
-            const sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
+                textSource.setEndOffset(length);
+
+                sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
+            } finally {
+                textSource.cleanup();
+            }
 
             const context = {
                 source: {
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