work

frontend/src/desktop/events.js

@@ -13,3 +13,19 @@ export const preventAll = (event) => {
     console.warn('[events] stopPropagation failed', error);
   }
 };
+
+export const safeInvoke = (fn, ...args) => (typeof fn === 'function' ? fn(...args) : undefined);
+
+export const getPointerPosition = (event, { fallbackToPage = true } = {}) => {
+  if (!event) {
+    return { x: 0, y: 0 };
+  }
+  const clientX = Number.isFinite(event.clientX) ? event.clientX : null;
+  const clientY = Number.isFinite(event.clientY) ? event.clientY : null;
+  const pageX = fallbackToPage && Number.isFinite(event.pageX) ? event.pageX : null;
+  const pageY = fallbackToPage && Number.isFinite(event.pageY) ? event.pageY : null;
+  return {
+    x: clientX ?? pageX ?? 0,
+    y: clientY ?? pageY ?? 0,
+  };
+};