File: modules/system/assets/ui/js/inspector.validator.integer.js

/*
 * Inspector integer validator.
 */
+function ($) { "use strict";

    var Base = $.wn.inspector.validators.baseNumber,
        BaseProto = Base.prototype

    var IntegerValidator = function(options) {
        Base.call(this, options)
    }

    IntegerValidator.prototype = Object.create(BaseProto)
    IntegerValidator.prototype.constructor = Base

    IntegerValidator.prototype.isValid = function(value) {
        if (!this.isScalar(value) || typeof value == 'boolean') {
            this.throwError('The Integer Inspector validator can only be used with string values.')
        }

        if (value === undefined || value === null) {
            return null
        }

        var string = $.trim(String(value))

        if (string.length === 0) {
            return null
        }

        var testResult = this.options.allowNegative ?
            /^\-?[0-9]*$/.test(string) :
            /^[0-9]*$/.test(string)

        if (!testResult) {
            var defaultMessage = this.options.allowNegative ?
                'The value should be an integer.' :
                'The value should be a positive integer.';

            return this.getMessage(defaultMessage)
        }

        return this.doCommonChecks(parseInt(string))
    }

    $.wn.inspector.validators.integer = IntegerValidator
}(window.jQuery);