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Backbone.ModelBinder v1.1.0\r\n// (c) 2015 Bart Wood\r\n// Distributed Under MIT License\r\n\r\n(function (factory) {\r\n    if (typeof define === 'function' && define.amd) {\r\n        // AMD. Register as an anonymous module.\r\n        define(['underscore', 'jquery', 'backbone'], factory);\r\n    } else if(typeof module !== 'undefined' && module.exports) {\r\n        // CommonJS\r\n        module.exports = factory(\r\n            require('underscore'),\r\n            require('jquery'),\r\n            require('backbone')\r\n        );\r\n    } else {\r\n        // Browser globals\r\n        factory(_, jQuery, Backbone);\r\n    }\r\n}(function(_, $, Backbone){\r\n\r\n    if(!Backbone){\r\n        throw 'Please include Backbone.js before Backbone.ModelBinder.js';\r\n    }\r\n\r\n    Backbone.ModelBinder = function(){\r\n        _.bindAll.apply(_, [this].concat(_.functions(this)));\r\n    };\r\n\r\n    // Static setter for class level options\r\n    Backbone.ModelBinder.SetOptions = function(options){\r\n        Backbone.ModelBinder.options = options;\r\n    };\r\n\r\n    // Current version of the library.\r\n    Backbone.ModelBinder.VERSION = '1.1.0';\r\n    Backbone.ModelBinder.Constants = {};\r\n    Backbone.ModelBinder.Constants.ModelToView = 'ModelToView';\r\n    Backbone.ModelBinder.Constants.ViewToModel = 'ViewToModel';\r\n\r\n    _.extend(Backbone.ModelBinder.prototype, {\r\n\r\n        bind:function (model, rootEl, attributeBindings, options) {\r\n            this.unbind();\r\n\r\n            this._model = model;\r\n            this._rootEl = rootEl;\r\n            this._setOptions(options);\r\n\r\n            if (!this._model) this._throwException('model must be specified');\r\n            if (!this._rootEl) this._throwException('rootEl must be specified');\r\n\r\n            if(attributeBindings){\r\n                // Create a deep clone of the attribute bindings\r\n                this._attributeBindings = $.extend(true, {}, attributeBindings);\r\n\r\n                this._initializeAttributeBindings();\r\n                this._initializeElBindings();\r\n            }\r\n            else {\r\n                this._initializeDefaultBindings();\r\n            }\r\n\r\n            this._bindModelToView();\r\n            this._bindViewToModel();\r\n        },\r\n\r\n        bindCustomTriggers: function (model, rootEl, triggers, attributeBindings, modelSetOptions) {\r\n            this._triggers = triggers;\r\n            this.bind(model, rootEl, attributeBindings, modelSetOptions);\r\n        },\r\n\r\n        unbind:function () {\r\n            this._unbindModelToView();\r\n            this._unbindViewToModel();\r\n\r\n            if(this._attributeBindings){\r\n                delete this._attributeBindings;\r\n                this._attributeBindings = undefined;\r\n            }\r\n        },\r\n\r\n        _setOptions: function(options){\r\n            this._options = _.extend({\r\n                boundAttribute: 'name'\r\n            }, Backbone.ModelBinder.options, options);\r\n\r\n            // initialize default options\r\n            if(!this._options['modelSetOptions']){\r\n                this._options['modelSetOptions'] = {};\r\n            }\r\n            this._options['modelSetOptions'].changeSource = 'ModelBinder';\r\n\r\n            if(!this._options['changeTriggers']){\r\n                this._options['changeTriggers'] = {'': 'change', '[contenteditable]': 'blur'};\r\n            }\r\n\r\n            if(!this._options['initialCopyDirection']){\r\n                this._options['initialCopyDirection'] = Backbone.ModelBinder.Constants.ModelToView;\r\n            }\r\n        },\r\n\r\n        // Converts the input bindings, which might just be empty or strings, to binding objects\r\n        _initializeAttributeBindings:function () {\r\n            var attributeBindingKey, inputBinding, attributeBinding, elementBindingCount, elementBinding;\r\n\r\n            for (attributeBindingKey in this._attributeBindings) {\r\n                inputBinding = this._attributeBindings[attributeBindingKey];\r\n\r\n                if (_.isString(inputBinding)) {\r\n                    attributeBinding = {elementBindings: [{selector: inputBinding}]};\r\n                }\r\n                else if (_.isArray(inputBinding)) {\r\n                    attributeBinding = {elementBindings: inputBinding};\r\n                }\r\n                else if(_.isObject(inputBinding)){\r\n                    attributeBinding = {elementBindings: [inputBinding]};\r\n                }\r\n                else {\r\n                    this._throwException('Unsupported type passed to Model Binder ' + attributeBinding);\r\n                }\r\n\r\n                // Add a linkage from the element binding back to the attribute binding\r\n                for(elementBindingCount = 0; elementBindingCount < attributeBinding.elementBindings.length; elementBindingCount++){\r\n                    elementBinding = attributeBinding.elementBindings[elementBindingCount];\r\n                    elementBinding.attributeBinding = attributeBinding;\r\n                }\r\n\r\n                attributeBinding.attributeName = attributeBindingKey;\r\n                this._attributeBindings[attributeBindingKey] = attributeBinding;\r\n            }\r\n        },\r\n\r\n        // If the bindings are not specified, the default binding is performed on the specified attribute, name by default\r\n        _initializeDefaultBindings: function(){\r\n            var elCount, elsWithAttribute, matchedEl, name, attributeBinding;\r\n\r\n            this._attributeBindings = {};\r\n            elsWithAttribute = $('[' + this._options['boundAttribute'] + ']', this._rootEl);\r\n\r\n            for(elCount = 0; elCount < elsWithAttribute.length; elCount++){\r\n                matchedEl = elsWithAttribute[elCount];\r\n                name = $(matchedEl).attr(this._options['boundAttribute']);\r\n\r\n                // For elements like radio buttons we only want a single attribute binding with possibly multiple element bindings\r\n                if(!this._attributeBindings[name]){\r\n                    attributeBinding =  {attributeName: name};\r\n                    attributeBinding.elementBindings = [{attributeBinding: attributeBinding, boundEls: [matchedEl]}];\r\n                    this._attributeBindings[name] = attributeBinding;\r\n                }\r\n                else{\r\n                    this._attributeBindings[name].elementBindings.push({attributeBinding: this._attributeBindings[name], boundEls: [matchedEl]});\r\n                }\r\n            }\r\n        },\r\n\r\n        _initializeElBindings:function () {\r\n            var bindingKey, attributeBinding, bindingCount, elementBinding, foundEls, elCount, el;\r\n            for (bindingKey in this._attributeBindings) {\r\n                attributeBinding = this._attributeBindings[bindingKey];\r\n\r\n                for (bindingCount = 0; bindingCount < attributeBinding.elementBindings.length; bindingCount++) {\r\n                    elementBinding = attributeBinding.elementBindings[bindingCount];\r\n                    if (elementBinding.selector === '') {\r\n                        foundEls = $(this._rootEl);\r\n                    }\r\n                    else {\r\n                        foundEls = $(elementBinding.selector, this._rootEl);\r\n                    }\r\n\r\n                    if (foundEls.length === 0) {\r\n                        this._throwException('Bad binding found. No elements returned for binding selector ' + elementBinding.selector);\r\n                    }\r\n                    else {\r\n                        elementBinding.boundEls = [];\r\n                        for (elCount = 0; elCount < foundEls.length; elCount++) {\r\n                            el = foundEls[elCount];\r\n                            elementBinding.boundEls.push(el);\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        },\r\n\r\n        _bindModelToView: function () {\r\n            this._model.on('change', this._onModelChange, this);\r\n\r\n            if(this._options['initialCopyDirection'] === Backbone.ModelBinder.Constants.ModelToView){\r\n                this.copyModelAttributesToView();\r\n            }\r\n        },\r\n\r\n        // attributesToCopy is an optional parameter - if empty, all attributes\r\n        // that are bound will be copied.  Otherwise, only attributeBindings specified\r\n        // in the attributesToCopy are copied.\r\n        copyModelAttributesToView: function(attributesToCopy){\r\n            var attributeName, attributeBinding;\r\n\r\n            for (attributeName in this._attributeBindings) {\r\n                if(attributesToCopy === undefined || _.indexOf(attributesToCopy, attributeName) !== -1){\r\n                    attributeBinding = this._attributeBindings[attributeName];\r\n                    this._copyModelToView(attributeBinding);\r\n                }\r\n            }\r\n        },\r\n\r\n        copyViewValuesToModel: function(){\r\n            var bindingKey, attributeBinding, bindingCount, elementBinding, elCount, el;\r\n            for (bindingKey in this._attributeBindings) {\r\n                attributeBinding = this._attributeBindings[bindingKey];\r\n\r\n                for (bindingCount = 0; bindingCount < attributeBinding.elementBindings.length; bindingCount++) {\r\n                    elementBinding = attributeBinding.elementBindings[bindingCount];\r\n\r\n                    if(this._isBindingUserEditable(elementBinding)){\r\n                        if(this._isBindingRadioGroup(elementBinding)){\r\n                            el = this._getRadioButtonGroupCheckedEl(elementBinding);\r\n                            if(el){\r\n                                this._copyViewToModel(elementBinding, el);\r\n                            }\r\n                        }\r\n                        else {\r\n                            for(elCount = 0; elCount < elementBinding.boundEls.length; elCount++){\r\n                                el = $(elementBinding.boundEls[elCount]);\r\n                                if(this._isElUserEditable(el)){\r\n                                    this._copyViewToModel(elementBinding, el);\r\n                                }\r\n                            }\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        },\r\n\r\n        _unbindModelToView: function(){\r\n            if(this._model){\r\n                this._model.off('change', this._onModelChange);\r\n                this._model = undefined;\r\n            }\r\n        },\r\n\r\n        _bindViewToModel: function () {\r\n            _.each(this._options['changeTriggers'], function (event, selector) {\r\n                $(this._rootEl).on(event, selector, this._onElChanged);\r\n            }, this);\r\n\r\n            if(this._options['initialCopyDirection'] === Backbone.ModelBinder.Constants.ViewToModel){\r\n                this.copyViewValuesToModel();\r\n            }\r\n        },\r\n\r\n        _unbindViewToModel: function () {\r\n            if(this._options && this._options['changeTriggers']){\r\n                _.each(this._options['changeTriggers'], function (event, selector) {\r\n                    $(this._rootEl).off(event, selector, this._onElChanged);\r\n                }, this);\r\n            }\r\n        },\r\n\r\n        _onElChanged:function (event) {\r\n            var el, elBindings, elBindingCount, elBinding;\r\n\r\n            el = $(event.target)[0];\r\n            elBindings = this._getElBindings(el);\r\n\r\n            for(elBindingCount = 0; elBindingCount < elBindings.length; elBindingCount++){\r\n                elBinding = elBindings[elBindingCount];\r\n                if (this._isBindingUserEditable(elBinding)) {\r\n                    this._copyViewToModel(elBinding, el);\r\n                }\r\n            }\r\n        },\r\n\r\n        _isBindingUserEditable: function(elBinding){\r\n            return elBinding.elAttribute === undefined ||\r\n                elBinding.elAttribute === 'text' ||\r\n                elBinding.elAttribute === 'html';\r\n        },\r\n\r\n        _isElUserEditable: function(el){\r\n            var isContentEditable = el.attr('contenteditable');\r\n            return isContentEditable || el.is('input') || el.is('select') || el.is('textarea');\r\n        },\r\n\r\n        _isBindingRadioGroup: function(elBinding){\r\n            var elCount, el;\r\n            var isAllRadioButtons = elBinding.boundEls.length > 0;\r\n            for(elCount = 0; elCount < elBinding.boundEls.length; elCount++){\r\n                el = $(elBinding.boundEls[elCount]);\r\n                if(el.attr('type') !== 'radio'){\r\n                    isAllRadioButtons = false;\r\n                    break;\r\n                }\r\n            }\r\n\r\n            return isAllRadioButtons;\r\n        },\r\n\r\n        _getRadioButtonGroupCheckedEl: function(elBinding){\r\n            var elCount, el;\r\n            for(elCount = 0; elCount < elBinding.boundEls.length; elCount++){\r\n                el = $(elBinding.boundEls[elCount]);\r\n                if(el.attr('type') === 'radio' && el.prop('checked')){\r\n                    return el;\r\n                }\r\n            }\r\n\r\n            return undefined;\r\n        },\r\n\r\n        _getElBindings:function (findEl) {\r\n            var attributeName, attributeBinding, elementBindingCount, elementBinding, boundElCount, boundEl;\r\n            var elBindings = [];\r\n\r\n            for (attributeName in this._attributeBindings) {\r\n                attributeBinding = this._attributeBindings[attributeName];\r\n\r\n                for (elementBindingCount = 0; elementBindingCount < attributeBinding.elementBindings.length; elementBindingCount++) {\r\n                    elementBinding = attributeBinding.elementBindings[elementBindingCount];\r\n\r\n                    for (boundElCount = 0; boundElCount < elementBinding.boundEls.length; boundElCount++) {\r\n                        boundEl = elementBinding.boundEls[boundElCount];\r\n\r\n                        if (boundEl === findEl) {\r\n                            elBindings.push(elementBinding);\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n\r\n            return elBindings;\r\n        },\r\n\r\n        _onModelChange:function () {\r\n            var changedAttribute, attributeBinding;\r\n\r\n            for (changedAttribute in this._model.changedAttributes()) {\r\n                attributeBinding = this._attributeBindings[changedAttribute];\r\n\r\n                if (attributeBinding) {\r\n                    this._copyModelToView(attributeBinding);\r\n                }\r\n            }\r\n        },\r\n\r\n        _copyModelToView:function (attributeBinding) {\r\n            var elementBindingCount, elementBinding, boundElCount, boundEl, value, convertedValue;\r\n\r\n            value = this._model.get(attributeBinding.attributeName);\r\n\r\n            for (elementBindingCount = 0; elementBindingCount < attributeBinding.elementBindings.length; elementBindingCount++) {\r\n                elementBinding = attributeBinding.elementBindings[elementBindingCount];\r\n\r\n                for (boundElCount = 0; boundElCount < elementBinding.boundEls.length; boundElCount++) {\r\n                    boundEl = elementBinding.boundEls[boundElCount];\r\n\r\n                    if(!boundEl._isSetting){\r\n                        convertedValue = this._getConvertedValue(Backbone.ModelBinder.Constants.ModelToView, elementBinding, value);\r\n                        this._setEl($(boundEl), elementBinding, convertedValue);\r\n                    }\r\n                }\r\n            }\r\n        },\r\n\r\n        _setEl: function (el, elementBinding, convertedValue) {\r\n            if (elementBinding.elAttribute) {\r\n                this._setElAttribute(el, elementBinding, convertedValue);\r\n            }\r\n            else {\r\n                this._setElValue(el, convertedValue);\r\n            }\r\n        },\r\n\r\n        _setElAttribute:function (el, elementBinding, convertedValue) {\r\n            switch (elementBinding.elAttribute) {\r\n                case 'html':\r\n                    el.html(convertedValue);\r\n                    break;\r\n                case 'text':\r\n                    el.text(convertedValue);\r\n                    break;\r\n                case 'enabled':\r\n                    el.prop('disabled', !convertedValue);\r\n                    break;\r\n                case 'displayed':\r\n                    el[convertedValue ? 'show' : 'hide']();\r\n                    break;\r\n                case 'hidden':\r\n                    el[convertedValue ? 'hide' : 'show']();\r\n                    break;\r\n                case 'css':\r\n                    el.css(elementBinding.cssAttribute, convertedValue);\r\n                    break;\r\n                case 'class':\r\n                    var previousValue = this._model.previous(elementBinding.attributeBinding.attributeName);\r\n                    var currentValue = this._model.get(elementBinding.attributeBinding.attributeName);\r\n                    // is current value is now defined then remove the class the may have been set for the undefined value\r\n                    if(!_.isUndefined(previousValue) || !_.isUndefined(currentValue)){\r\n                        previousValue = this._getConvertedValue(Backbone.ModelBinder.Constants.ModelToView, elementBinding, previousValue);\r\n                        el.removeClass(previousValue);\r\n                    }\r\n\r\n                    if(convertedValue){\r\n                        el.addClass(convertedValue);\r\n                    }\r\n                    break;\r\n                default:\r\n                    el.attr(elementBinding.elAttribute, convertedValue);\r\n            }\r\n        },\r\n\r\n        _setElValue:function (el, convertedValue) {\r\n            if(el.attr('type')){\r\n                switch (el.attr('type')) {\r\n                    case 'radio':\r\n                        el.prop('checked', el.val() === convertedValue);\r\n                        break;\r\n                    case 'checkbox':\r\n                         el.prop('checked', !!convertedValue);\r\n                        break;\r\n                    case 'file':\r\n                        break;\r\n                    default:\r\n                        el.val(convertedValue);\r\n                }\r\n            }\r\n            else if(el.is('input') || el.is('select') || el.is('textarea')){\r\n                el.val(convertedValue || (convertedValue === 0 ? '0' : ''));\r\n            }\r\n            else {\r\n                el.text(convertedValue || (convertedValue === 0 ? '0' : ''));\r\n            }\r\n        },\r\n\r\n        _copyViewToModel: function (elementBinding, el) {\r\n            var result, value, convertedValue;\r\n\r\n            if (!el._isSetting) {\r\n\r\n                el._isSetting = true;\r\n                result = this._setModel(elementBinding, $(el));\r\n                el._isSetting = false;\r\n\r\n                if(result && elementBinding.converter){\r\n                    value = this._model.get(elementBinding.attributeBinding.attributeName);\r\n                    convertedValue = this._getConvertedValue(Backbone.ModelBinder.Constants.ModelToView, elementBinding, value);\r\n                    this._setEl($(el), elementBinding, convertedValue);\r\n                }\r\n            }\r\n        },\r\n\r\n        _getElValue: function(elementBinding, el){\r\n            switch (el.attr('type')) {\r\n                case 'checkbox':\r\n                    return el.prop('checked') ? true : false;\r\n                default:\r\n                    if(el.attr('contenteditable') !== undefined){\r\n                        return el.html();\r\n                    }\r\n                    else {\r\n                        return el.val();\r\n                    }\r\n            }\r\n        },\r\n\r\n        _setModel: function (elementBinding, el) {\r\n            var data = {};\r\n            var elVal = this._getElValue(elementBinding, el);\r\n            elVal = this._getConvertedValue(Backbone.ModelBinder.Constants.ViewToModel, elementBinding, elVal);\r\n            data[elementBinding.attributeBinding.attributeName] = elVal;\r\n            return this._model.set(data,  this._options['modelSetOptions']);\r\n        },\r\n\r\n        _getConvertedValue: function (direction, elementBinding, value) {\r\n\r\n            if (elementBinding.converter) {\r\n                value = elementBinding.converter(direction, value, elementBinding.attributeBinding.attributeName, this._model, elementBinding.boundEls);\r\n            }\r\n            else if(this._options['converter']){\r\n                value = this._options['converter'](direction, value, elementBinding.attributeBinding.attributeName, this._model, elementBinding.boundEls);\r\n            }\r\n\r\n            return value;\r\n        },\r\n\r\n        _throwException: function(message){\r\n            if(this._options.suppressThrows){\r\n                if(typeof(console) !== 'undefined' && console.error){\r\n                    console.error(message);\r\n                }\r\n            }\r\n            else {\r\n                throw message;\r\n            }\r\n        }\r\n    });\r\n\r\n    Backbone.ModelBinder.CollectionConverter = function(collection){\r\n        this._collection = collection;\r\n\r\n        if(!this._collection){\r\n            throw 'Collection must be defined';\r\n        }\r\n        _.bindAll(this, 'convert');\r\n    };\r\n\r\n    _.extend(Backbone.ModelBinder.CollectionConverter.prototype, {\r\n        convert: function(direction, value){\r\n            if (direction === Backbone.ModelBinder.Constants.ModelToView) {\r\n                return value ? value.id : undefined;\r\n            }\r\n            else {\r\n                return this._collection.get(value);\r\n            }\r\n        }\r\n    });\r\n\r\n    // A static helper function to create a default set of bindings that you can customize before calling the bind() function\r\n    // rootEl - where to find all of the bound elements\r\n    // attributeType - probably 'name' or 'id' in most cases\r\n    // converter(optional) - the default converter you want applied to all your bindings\r\n    // elAttribute(optional) - the default elAttribute you want applied to all your bindings\r\n    Backbone.ModelBinder.createDefaultBindings = function(rootEl, attributeType, converter, elAttribute){\r\n        var foundEls, elCount, foundEl, attributeName;\r\n        var bindings = {};\r\n\r\n        foundEls = $('[' + attributeType + ']', rootEl);\r\n\r\n        for(elCount = 0; elCount < foundEls.length; elCount++){\r\n            foundEl = foundEls[elCount];\r\n            attributeName = $(foundEl).attr(attributeType);\r\n\r\n            if(!bindings[attributeName]){\r\n                var attributeBinding =  {selector: '[' + attributeType + '=\"' + attributeName + '\"]'};\r\n                bindings[attributeName] = attributeBinding;\r\n\r\n                if(converter){\r\n                    bindings[attributeName].converter = converter;\r\n                }\r\n\r\n                if(elAttribute){\r\n                    bindings[attributeName].elAttribute = elAttribute;\r\n                }\r\n            }\r\n        }\r\n\r\n        return bindings;\r\n    };\r\n\r\n    // Helps you to combine 2 sets of bindings\r\n    Backbone.ModelBinder.combineBindings = function(destination, source){\r\n        _.each(source, function(value, key){\r\n            var elementBinding = {selector: value.selector};\r\n\r\n            if(value.converter){\r\n                elementBinding.converter = value.converter;\r\n            }\r\n\r\n            if(value.elAttribute){\r\n                elementBinding.elAttribute = value.elAttribute;\r\n            }\r\n\r\n            if(!destination[key]){\r\n                destination[key] = elementBinding;\r\n            }\r\n            else {\r\n                destination[key] = [destination[key], elementBinding];\r\n            }\r\n        });\r\n\r\n        return destination;\r\n    };\r\n\r\n\r\n    return Backbone.ModelBinder;\r\n\r\n}));\r\n"],"names":["_","$","Backbone","ModelBinder","bindAll","apply","this","concat","functions","SetOptions","options","VERSION","Constants","ModelToView","ViewToModel","extend","prototype","bind","model","rootEl","attributeBindings","unbind","_model","_rootEl","_setOptions","_throwException","_attributeBindings","_initializeAttributeBindings","_initializeElBindings","_initializeDefaultBindings","_bindModelToView","_bindViewToModel","bindCustomTriggers","triggers","modelSetOptions","_triggers","_unbindModelToView","_unbindViewToModel","undefined","_options","boundAttribute","changeSource","attributeBindingKey","inputBinding","attributeBinding","elementBindingCount","isString","elementBindings","selector","isArray","isObject","length","attributeName","elCount","elsWithAttribute","matchedEl","name","attr","push","boundEls","bindingKey","bindingCount","elementBinding","foundEls","el","on","_onModelChange","copyModelAttributesToView","attributesToCopy","indexOf","_copyModelToView","copyViewValuesToModel","_isBindingUserEditable","_isBindingRadioGroup","_getRadioButtonGroupCheckedEl","_copyViewToModel","_isElUserEditable","off","each","event","_onElChanged","elBindings","elBindingCount","elBinding","target","_getElBindings","elAttribute","is","isAllRadioButtons","prop","findEl","boundElCount","changedAttribute","changedAttributes","boundEl","value","convertedValue","get","_isSetting","_getConvertedValue","_setEl","_setElAttribute","_setElValue","html","text","css","cssAttribute","previousValue","previous","currentValue","isUndefined","removeClass","addClass","val","result","_setModel","converter","_getElValue","data","elVal","set","direction","message","suppressThrows","console","error","CollectionConverter","collection","_collection","convert","id","createDefaultBindings","attributeType","foundEl","bindings","combineBindings","destination","source","key"],"sourceRoot":""}