Fixed possible issue with newest release of Chrome (removeEventListener)

paopre · Nov 18, 2021 · 941f70c · 941f70c
1 parent a6d2f01
commit 941f70c
Showing 1 changed file with 11 additions and 6 deletions.
diff --git a/lib/webgui/js/svg-functions.js b/lib/webgui/js/svg-functions.js
@@ -2886,8 +2886,12 @@ function initPanZoom(active) {
 function activatePanZoom() {
   if (panzoomInstance != null) {
     var svg = document.querySelector("svg")
-    svg.addEventListener('wheel', zoomWithWheel)
-    svg.addEventListener('dblclick', zoomWithDblClick)
+    if (svg.getAttribute("zoomeventlistener") == null)
+    {
+        svg.setAttribute("zoomeventlistener", "true")
+        svg.addEventListener('wheel', zoomWithWheel)
+        svg.addEventListener('dblclick', zoomWithDblClick)
+    }
     panzoomInstance.bind()
     var svgcontainer = document.getElementById("svgcontainer")
     svgcontainer.style.cursor = "move"
@@ -2896,10 +2900,11 @@ function activatePanZoom() {
 
 function deactivatePanZoom() {
   if (panzoomInstance != null) {
-
-    var svg = document.querySelector("svg")
-    svg.removeEventListener('wheel', zoomWithWheel)
-    svg.removeEventListener('dblclick', zoomWithDblClick)
+    //var svg = document.querySelector("svg")
+    //{
+    //  svg.removeEventListener('wheel', zoomWithWheel)
+    //  svg.removeEventListener('dblclick', zoomWithDblClick)
+    //}
     panzoomInstance.destroy()
     var svgcontainer = document.getElementById("svgcontainer")
     svgcontainer.style.cursor = "auto"