all supported browsers have the 'wheel' event

remove legacy workarounds
Xpra-org · Feb 6, 2024 · 047f32f · 047f32f
1 parent a1c1d39
commit 047f32f
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Showing 2 changed files with 3 additions and 8 deletions.
diff --git a/html5/js/Client.js b/html5/js/Client.js
@@ -345,10 +345,9 @@ class XpraClient {
     }
     if (Utilities.isEventSupported("wheel")) {
       div.addEventListener("wheel", on_mousescroll, false);
-    } else if (Utilities.isEventSupported("mousewheel")) {
-      div.addEventListener("mousewheel", on_mousescroll, false);
-    } else if (Utilities.isEventSupported("DOMMouseScroll")) {
-      div.addEventListener("DOMMouseScroll", on_mousescroll, false); // for Firefox
+    }
+    else {
+      this.warn("browser does not support scroll wheel events");
     }
   }
 

diff --git a/html5/js/Window.js b/html5/js/Window.js
@@ -397,10 +397,6 @@ class XpraWindow {
     }
     if (Utilities.isEventSupported("wheel")) {
       canvas.addEventListener("wheel", on_mousescroll, false);
-    } else if (Utilities.isEventSupported("mousewheel")) {
-      canvas.addEventListener("mousewheel", on_mousescroll, false);
-    } else if (Utilities.isEventSupported("DOMMouseScroll")) {
-      canvas.addEventListener("DOMMouseScroll", on_mousescroll, false); // for Firefox
     }
   }