1 files changed, 7 insertions, 1 deletions
diff --git a/ext/mixed/js/text-scanner.js b/ext/mixed/js/text-scanner.js
index a1d96320..1d6e36e0 100644
--- a/ext/mixed/js/text-scanner.js
+++ b/ext/mixed/js/text-scanner.js
@@ -22,11 +22,13 @@
  */
 
 class TextScanner {
-    constructor(node, ignoreElements, ignorePoints) {
+    constructor(node, ignoreElements, ignorePoints, canEnable=null) {
         this.node = node;
         this.ignoreElements = ignoreElements;
         this.ignorePoints = ignorePoints;
 
+        this.canEnable = canEnable;
+
         this.ignoreNodes = null;
 
         this.scanTimerPromise = null;
@@ -225,6 +227,10 @@ class TextScanner {
     }
 
     setEnabled(enabled) {
+        if (this.canEnable !== null && !this.canEnable()) {
+            enabled = false;
+        }
+
         if (enabled) {
             if (!this.enabled) {
                 this.hookEvents();