icon: 'share-alt',
iconStyle: dir === 'undo' ? '-webkit-transform: scale(-1,1); transform: scale(-1, 1)' : '',
execute: function(callback, params) {
icon: 'share-alt',
iconStyle: dir === 'undo' ? '-webkit-transform: scale(-1,1); transform: scale(-1, 1)' : '',
execute: function(callback, params) {