From 1df59d57b5dcbf9d3efedcb21a4d5e16524a67c1 Mon Sep 17 00:00:00 2001
From: siikamiika <siikamiika@users.noreply.github.com>
Date: Fri, 10 Apr 2020 02:48:41 +0300
Subject: [PATCH] limit popup depth live

---
 ext/fg/js/frontend.js        | 3 ++-
 ext/mixed/js/text-scanner.js | 8 +++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 55d699e5..a6b24c76 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -30,7 +30,8 @@ class Frontend extends TextScanner {
         super(
             window,
             popup.isProxy() ? [] : [popup.getContainer()],
-            [(x, y) => this.popup.containsPoint(x, y)]
+            [(x, y) => this.popup.containsPoint(x, y)],
+            () => this.popup.depth <= this.options.scanning.popupNestingMaxDepth
         );
 
         this.popup = popup;
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();