Completely updated React, fixed #11, (hopefully)

goTorrentWebUI/node_modules/material-ui/es/utils/keyboardFocus.js

@@ -3,10 +3,9 @@
 import keycode from 'keycode';
 import warning from 'warning';
 import contains from 'dom-helpers/query/contains';
-import addEventListener from '../utils/addEventListener';
+import ownerDocument from 'dom-helpers/ownerDocument';
 
 const internal = {
-  listening: false,
   focusKeyPressed: false
 };
 
@@ -19,11 +18,13 @@ export function focusKeyPressed(pressed) {
 }
 
 export function detectKeyboardFocus(instance, element, callback, attempt = 1) {
-  warning(instance.keyboardFocusCheckTime, 'Material-UI: missing instance.keyboardFocusCheckTime');
-  warning(instance.keyboardFocusMaxCheckTimes, 'Material-UI: missing instance.keyboardFocusMaxCheckTimes');
+  process.env.NODE_ENV !== "production" ? warning(instance.keyboardFocusCheckTime, 'Material-UI: missing instance.keyboardFocusCheckTime') : void 0;
+  process.env.NODE_ENV !== "production" ? warning(instance.keyboardFocusMaxCheckTimes, 'Material-UI: missing instance.keyboardFocusMaxCheckTimes') : void 0;
 
   instance.keyboardFocusTimeout = setTimeout(() => {
-    if (focusKeyPressed() && (document.activeElement === element || contains(element, document.activeElement))) {
+    const doc = ownerDocument(element);
+
+    if (focusKeyPressed() && (doc.activeElement === element || contains(element, doc.activeElement))) {
       callback();
     } else if (attempt < instance.keyboardFocusMaxCheckTimes) {
       detectKeyboardFocus(instance, element, callback, attempt + 1);
@@ -37,15 +38,15 @@ function isFocusKey(event) {
   return FOCUS_KEYS.indexOf(keycode(event)) !== -1;
 }
 
-export function listenForFocusKeys() {
-  // It's a singleton, we only need to listen once.
-  // Also, this logic is client side only, we don't need a teardown.
-  if (!internal.listening) {
-    addEventListener(window, 'keyup', event => {
-      if (isFocusKey(event)) {
-        internal.focusKeyPressed = true;
-      }
-    });
-    internal.listening = true;
+const handleKeyUpEvent = event => {
+  if (isFocusKey(event)) {
+    internal.focusKeyPressed = true;
   }
+};
+
+export function listenForFocusKeys(win) {
+  // The event listener will only be added once per window.
+  // Duplicate event listeners will be ignored by addEventListener.
+  // Also, this logic is client side only, we don't need a teardown.
+  win.addEventListener('keyup', handleKeyUpEvent);
 }