/MvcMusicStore/Scripts/jquery.validate.unobtrusive.js

/// <reference path="jquery-1.5.1.js" />

/// <reference path="jquery.validate.js" />



/*!

** Unobtrusive validation support library for jQuery and jQuery Validate

** Copyright (C) Microsoft Corporation. All rights reserved.

*/



/*jslint white: true, browser: true, onevar: true, undef: true, nomen: true, eqeqeq: true, plusplus: true, bitwise: true, regexp: true, newcap: true, immed: true, strict: false */

/*global document: false, jQuery: false */



(function ($) {

    var $jQval = $.validator,

        adapters,

        data_validation = "unobtrusiveValidation";



    function setValidationValues(options, ruleName, value) {

        options.rules[ruleName] = value;

        if (options.message) {

            options.messages[ruleName] = options.message;

        }

    }



    function splitAndTrim(value) {

        return value.replace(/^\s+|\s+$/g, "").split(/\s*,\s*/g);

    }



    function getModelPrefix(fieldName) {

        return fieldName.substr(0, fieldName.lastIndexOf(".") + 1);

    }



    function appendModelPrefix(value, prefix) {

        if (value.indexOf("*.") === 0) {

            value = value.replace("*.", prefix);

        }

        return value;

    }



    function onError(error, inputElement) {  // 'this' is the form element

        var container = $(this).find("[data-valmsg-for='" + inputElement[0].name + "']"),

            replace = $.parseJSON(container.attr("data-valmsg-replace")) !== false;



        container.removeClass("field-validation-valid").addClass("field-validation-error");

        error.data("unobtrusiveContainer", container);



        if (replace) {

            container.empty();

            error.removeClass("input-validation-error").appendTo(container);

        }

        else {

            error.hide();

        }

    }



    function onErrors(form, validator) {  // 'this' is the form element

        var container = $(this).find("[data-valmsg-summary=true]"),

            list = container.find("ul");



        if (list && list.length && validator.errorList.length) {

            list.empty();

            container.addClass("validation-summary-errors").removeClass("validation-summary-valid");



            $.each(validator.errorList, function () {

                $("<li />").html(this.message).appendTo(list);

            });

        }

    }



    function onSuccess(error) {  // 'this' is the form element

        var container = error.data("unobtrusiveContainer"),

            replace = $.parseJSON(container.attr("data-valmsg-replace"));



        if (container) {

            container.addClass("field-validation-valid").removeClass("field-validation-error");

            error.removeData("unobtrusiveContainer");



            if (replace) {

                container.empty();

            }

        }

    }



    function validationInfo(form) {

        var $form = $(form),

            result = $form.data(data_validation);



        if (!result) {

            result = {

                options: {  // options structure passed to jQuery Validate's validate() method

                    errorClass: "input-validation-error",

                    errorElement: "span",

                    errorPlacement: $.proxy(onError, form),

                    invalidHandler: $.proxy(onErrors, form),

                    messages: {},

                    rules: {},

                    success: $.proxy(onSuccess, form)

                },

                attachValidation: function () {

                    $form.validate(this.options);

                },

                validate: function () {  // a validation function that is called by unobtrusive Ajax

                    $form.validate();

                    return $form.valid();

                }

            };

            $form.data(data_validation, result);

        }



        return result;

    }



    $jQval.unobtrusive = {

        adapters: [],



        parseElement: function (element, skipAttach) {

            /// <summary>

            /// Parses a single HTML element for unobtrusive validation attributes.

            /// </summary>

            /// <param name="element" domElement="true">The HTML element to be parsed.</param>

            /// <param name="skipAttach" type="Boolean">[Optional] true to skip attaching the

            /// validation to the form. If parsing just this single element, you should specify true.

            /// If parsing several elements, you should specify false, and manually attach the validation

            /// to the form when you are finished. The default is false.</param>

            var $element = $(element),

                form = $element.parents("form")[0],

                valInfo, rules, messages;



            if (!form) {  // Cannot do client-side validation without a form

                return;

            }



            valInfo = validationInfo(form);

            valInfo.options.rules[element.name] = rules = {};

            valInfo.options.messages[element.name] = messages = {};



            $.each(this.adapters, function () {

                var prefix = "data-val-" + this.name,

                    message = $element.attr(prefix),

                    paramValues = {};



                if (message !== undefined) {  // Compare against undefined, because an empty message is legal (and falsy)

                    prefix += "-";



                    $.each(this.params, function () {

                        paramValues[this] = $element.attr(prefix + this);

                    });



                    this.adapt({

                        element: element,

                        form: form,

                        message: message,

                        params: paramValues,

                        rules: rules,

                        messages: messages

                    });

                }

            });



            jQuery.extend(rules, { "__dummy__": true });



            if (!skipAttach) {

                valInfo.attachValidation();

            }

        },



        parse: function (selector) {

            /// <summary>

            /// Parses all the HTML elements in the specified selector. It looks for input elements decorated

            /// with the [data-val=true] attribute value and enables validation according to the data-val-*

            /// attribute values.

            /// </summary>

            /// <param name="selector" type="String">Any valid jQuery selector.</param>

            $(selector).find(":input[data-val=true]").each(function () {

                $jQval.unobtrusive.parseElement(this, true);

            });



            $("form").each(function () {

                var info = validationInfo(this);

                if (info) {

                    info.attachValidation();

                }

            });

        }

    };



    adapters = $jQval.unobtrusive.adapters;



    adapters.add = function (adapterName, params, fn) {

        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation.</summary>

        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used

        /// in the data-val-nnnn HTML attribute (where nnnn is the adapter name).</param>

        /// <param name="params" type="Array" optional="true">[Optional] An array of parameter names (strings) that will

        /// be extracted from the data-val-nnnn-mmmm HTML attributes (where nnnn is the adapter name, and

        /// mmmm is the parameter name).</param>

        /// <param name="fn" type="Function">The function to call, which adapts the values from the HTML

        /// attributes into jQuery Validate rules and/or messages.</param>

        /// <returns type="jQuery.validator.unobtrusive.adapters" />

        if (!fn) {  // Called with no params, just a function

            fn = params;

            params = [];

        }

        this.push({ name: adapterName, params: params, adapt: fn });

        return this;

    };



    adapters.addBool = function (adapterName, ruleName) {

        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where

        /// the jQuery Validate validation rule has no parameter values.</summary>

        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used

        /// in the data-val-nnnn HTML attribute (where nnnn is the adapter name).</param>

        /// <param name="ruleName" type="String" optional="true">[Optional] The name of the jQuery Validate rule. If not provided, the value

        /// of adapterName will be used instead.</param>

        /// <returns type="jQuery.validator.unobtrusive.adapters" />

        return this.add(adapterName, function (options) {

            setValidationValues(options, ruleName || adapterName, true);

        });

    };



    adapters.addMinMax = function (adapterName, minRuleName, maxRuleName, minMaxRuleName, minAttribute, maxAttribute) {

        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where

        /// the jQuery Validate validation has three potential rules (one for min-only, one for max-only, and

        /// one for min-and-max). The HTML parameters are expected to be named -min and -max.</summary>

        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used

        /// in the data-val-nnnn HTML attribute (where nnnn is the adapter name).</param>

        /// <param name="minRuleName" type="String">The name of the jQuery Validate rule to be used when you only

        /// have a minimum value.</param>

        /// <param name="maxRuleName" type="String">The name of the jQuery Validate rule to be used when you only

        /// have a maximum value.</param>

        /// <param name="minMaxRuleName" type="String">The name of the jQuery Validate rule to be used when you

        /// have both a minimum and maximum value.</param>

        /// <param name="minAttribute" type="String" optional="true">[Optional] The name of the HTML attribute that

        /// contains the minimum value. The default is "min".</param>

        /// <param name="maxAttribute" type="String" optional="true">[Optional] The name of the HTML attribute that

        /// contains the maximum value. The default is "max".</param>

        /// <returns type="jQuery.validator.unobtrusive.adapters" />

        return this.add(adapterName, [minAttribute || "min", maxAttribute || "max"], function (options) {

            var min = options.params.min,

                max = options.params.max;



            if (min && max) {

                setValidationValues(options, minMaxRuleName, [min, max]);

            }

            else if (min) {

                setValidationValues(options, minRuleName, min);

            }

            else if (max) {

                setValidationValues(options, maxRuleName, max);

            }

        });

    };



    adapters.addSingleVal = function (adapterName, attribute, ruleName) {

        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where

        /// the jQuery Validate validation rule has a single value.</summary>

        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used

        /// in the data-val-nnnn HTML attribute(where nnnn is the adapter name).</param>

        /// <param name="attribute" type="String">[Optional] The name of the HTML attribute that contains the value.

        /// The default is "val".</param>

        /// <param name="ruleName" type="String" optional="true">[Optional] The name of the jQuery Validate rule. If not provided, the value

        /// of adapterName will be used instead.</param>

        /// <returns type="jQuery.validator.unobtrusive.adapters" />

        return this.add(adapterName, [attribute || "val"], function (options) {

            setValidationValues(options, ruleName || adapterName, options.params[attribute]);

        });

    };



    $jQval.addMethod("__dummy__", function (value, element, params) {

        return true;

    });



    $jQval.addMethod("regex", function (value, element, params) {

        var match;

        if (this.optional(element)) {

            return true;

        }



        match = new RegExp(params).exec(value);

        return (match && (match.index === 0) && (match[0].length === value.length));

    });



    adapters.addSingleVal("accept", "exts").addSingleVal("regex", "pattern");

    adapters.addBool("creditcard").addBool("date").addBool("digits").addBool("email").addBool("number").addBool("url");

    adapters.addMinMax("length", "minlength", "maxlength", "rangelength").addMinMax("range", "min", "max", "range");

    adapters.add("equalto", ["other"], function (options) {

        var prefix = getModelPrefix(options.element.name),

            other = options.params.other,

            fullOtherName = appendModelPrefix(other, prefix),

            element = $(options.form).find(":input[name=" + fullOtherName + "]")[0];



        setValidationValues(options, "equalTo", element);

    });

    adapters.add("required", function (options) {

        // jQuery Validate equates "required" with "mandatory" for checkbox elements

        if (options.element.tagName.toUpperCase() !== "INPUT" || options.element.type.toUpperCase() !== "CHECKBOX") {

            setValidationValues(options, "required", true);

        }

    });

    adapters.add("remote", ["url", "type", "additionalfields"], function (options) {

        var value = {

            url: options.params.url,

            type: options.params.type || "GET",

            data: {}

        },

            prefix = getModelPrefix(options.element.name);



        $.each(splitAndTrim(options.params.additionalfields || options.element.name), function (i, fieldName) {

            var paramName = appendModelPrefix(fieldName, prefix);

            value.data[paramName] = function () {

                return $(options.form).find(":input[name='" + paramName + "']").val();

            };

        });



        setValidationValues(options, "remote", value);

    });



    $(function () {

        $jQval.unobtrusive.parse(document);

    });

}(jQuery));