landers.angular/src/js/control/directive-disabled-when.js

landers.angular

;angular.module('Landers.angular')
    .directive('disabledWhen', ['$compile', 'Runtime', 'Helpers', function($compile, Runtime, Helpers){
        return {
            restrict : 'A',
            scope: {
                disabledWhen: '@disabledWhen'
            },
            link : function($scope, $ele, $attrs) {
                var myScope = Helpers.seekScope($scope, $attrs['useScope']);
                myScope.$watch('disabledWhen', function(new_value){
                    switch (new_value) {
                        case 'true' : new_value = true; break;
                        case 'false' : new_value = false; break;
                    }

                    if (new_value) {
                        $ele.addClass('disabled').prop('disabled', true);
                    } else {
                        $ele.removeClass('disabled').prop('disabled', false);
                    }
                });
            }
        };
    }]);