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MouseEvent.prototype.x or MouseEvent.prototype.y not supported fix

for browsers that don't support MouseEvent.prototype.x or MouseEvent.prototype.y

  1. // ==UserScript==
  2. // @name        MouseEvent.prototype.x or MouseEvent.prototype.y not supported fix
  3. // @namespace   http://bzzzzdzzzz.blogspot.com/
  4. // @description for browsers that don't support MouseEvent.prototype.x or MouseEvent.prototype.y
  5. // @author      BZZZZ
  6. // @include     *
  7. // @version     0.2
  8. // @grant       unsafeWindow
  9. // @run-at      document-start
  10. // ==/UserScript==
  11.  
  12. (function(){
  13.   "use strict";
  14.   var d=Object.defineProperty,g=Object.getOwnPropertyDescriptor,p=unsafeWindow.MouseEvent.prototype,h=Object.prototype.hasOwnProperty.bind(p);
  15.   h("x")||d(p,"x",g(p,"clientX"));
  16.   h("y")||d(p,"y",g(p,"clientY"));
  17. })();