Fixing osx menus. Also refresh context and file menus when a custom container is created. Fixes #127

index.js

@@ -1027,26 +1027,27 @@ ContainerWindow.prototype = {
   // Generic menu configuration.
   _configureMenu(menuId, excludedContainerCb, clickCb, arrayName) {
     const menu = this._window.document.getElementById(menuId);
+    this._disableElement(menu, arrayName);
     if (!this._disableElement(menu, arrayName)) {
-      return Promise.resolve(null);
+      // Delete stale menu that isn't native elements
+      while (menu.firstChild) {
+        menu.removeChild(menu.firstChild);
+      }
     }
 
     const menupopup = this._window.document.createElementNS(XUL_NS, "menupopup");
     menu.appendChild(menupopup);
 
     menupopup.addEventListener("command", clickCb);
-    menupopup.addEventListener("popupshowing", e => {
-      return this._createMenu(e, excludedContainerCb);
-    });
-
-    return Promise.resolve(null);
+    return this._createMenu(menupopup, excludedContainerCb);
   },
 
-  _createMenu(event, excludedContainerCb) {
-    while (event.target.hasChildNodes()) {
-      event.target.removeChild(event.target.firstChild);
+  _createMenu(target, excludedContainerCb) {
+    while (target.hasChildNodes()) {
+      target.removeChild(target.firstChild);
     }
 
+    return new Promise((resolve, reject) => {
       ContainerService.queryIdentities().then(identities => {
         const fragment = this._window.document.createDocumentFragment();
 
@@ -1079,10 +1080,10 @@ ContainerWindow.prototype = {
           fragment.appendChild(menuitem);
         });
 
-      event.target.appendChild(fragment);
-    }).catch(() => {});
-
-    return true;
+        target.appendChild(fragment);
+        resolve();
+      }).catch(() => {reject();});
+    });
   },
 
   // This timer is used to hide the panel auto-magically if it's not used in