buttonsConfig() {
  var button1 = {
    icon: '<i class="fa fa-check"></i>',
    name: button,
    actionEvent: () => { this.openConfirm(); },
    order: 1,
    active: false,
    large: true
    }
}

link: ng.IDirectiveLinkFn = ($scope: IActionBarScope, $element: ng.IAugmentedJQuery, $attrs: ng.IAttributes) => {
            var navbar = this.drawActionBar($scope.config);

            var padder = angular.element('<div id="padder" ng-if="action.isOpen"></div>');
            this.$compile(navbar)($scope);
            this.$compile(padder)($scope);

            $element.append(navbar, padder);
                }

        setupButtonActions(element: ng.IAugmentedJQuery, config) {
            if (config.actionEvent != null) {
                if (config.active === false) { //skip undefined or true
                    element.addClass("disabled");
                } else {
                    element.removeClass("disabled");
                    element.mouseup(config.actionEvent);
                }
            }
        }

<button ng-if="!ctrl.isReadOnly" type="submit" class="btn btn-flat btn-primary" ng-disabled="!ctrl.selectedAreReady()" ng-click="ctrl.openConfirm()"><i class="fa fa-check"></i> {{'button' | translate}}</button>

document.getElementById("myBtn").disabled = true;