allow to prevent global context menu

SQUASHED: AUTO-COMMIT-src-client-lively.js,AUTO-COMMIT-src-client-reactive-components-rewritten-jumping-cubes.js,AUTO-COMMIT-src-client-utils-font-awesome-utils.js,

Author: onsetsu

src/client/lively.js

@@ -1961,12 +1961,15 @@ export default class Lively {
     if (!evt.shiftKey) { // evt.ctrlKey
       evt.preventDefault();
       evt.stopPropagation();
+      
       // #Hack #Workaround weired browser scrolling behavior
       if (lively.lastScrollLeft || lively.lastScrollTop) {
         document.scrollingElement.scrollTop = lively.lastScrollTop;
         document.scrollingElement.scrollLeft = lively.lastScrollLeft;
       }
 
+      if (self.__preventGlobalContextMenu__) { return; }
+
       var link = Array.from(evt.composedPath()).find(ea => ea.localName == "a")
       if (link) {
         // #TODO can we shorten this or hide this context specific behavior, 

src/client/reactive/components/rewritten/jumping-cubes.js

@@ -8,6 +8,7 @@ import MCTS from './jumping-cubes-mcts.js';
 import Matrix from './square-matrix.js';
 
 import { shake } from 'utils';
+import { fa4 } from 'src/client/utils/font-awesome-utils.js';
 
 class Cube {
 
@@ -588,10 +589,6 @@ export default class JumpingCubes extends Morph {
     evt.stopPropagation();
     evt.preventDefault();
 
-    function fa4(classes) {
-      return '<i class="fa fa-' + classes + '" aria-hidden="true"></i>';
-    }
-
     const players = this.getConfig().players.map((player, index) => {
       function checkIcon(enabled) {
         return enabled ? fa4('check-square-o') : fa4('square-o');

src/client/utils/font-awesome-utils.js

@@ -0,0 +1,4 @@
+
+export function fa4(classes) {
+  return '<i class="fa fa-' + classes + '" aria-hidden="true"></i>';
+}