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class:EFI"ProcessedAsset; FI"logical_path; FI"!vendor/backbone.paginator.js; FI"pathname; FI"g/Users/patricknegri/Desenvolvimento/iugu-ux/vendor/assets/javascripts/vendor/backbone.paginator.js; FI"content_type; FI"application/javascript; FI"
mtime; FI"2013-01-08T08:30:05-02:00; FI"length; FiP]I"digest; F"%3cb2debda7020fc8ec0c22222a992215I"source; FI"P]/*! backbone.paginator - v0.1.54 - 8/18/2012
* http://github.com/addyosmani/backbone.paginator
* Copyright (c) 2012 Addy Osmani; Licensed MIT */


Backbone.Paginator = (function ( Backbone, _, $ ) {
	"use strict";

	var Paginator = {};
	Paginator.version = "0.15";

	// @name: clientPager
	//
	// @tagline: Paginator for client-side data
	//
	// @description:
	// This paginator is responsible for providing pagination
	// and sort capabilities for a single payload of data
	// we wish to paginate by the UI for easier browsering.
	//
	Paginator.clientPager = Backbone.Collection.extend({
	
		// Default values used when sorting and/or filtering.
		initialize: function(){
			this.useDiacriticsPlugin = true; // use diacritics plugin if available
			this.useLevenshteinPlugin = true; // use levenshtein plugin if available
		
			this.sortColumn = "";
			this.sortDirection = "desc";
			this.lastSortColumn = "";

			this.fieldFilterRules = [];
			this.lastFieldFilterRules = [];

			this.filterFields = "";
			this.filterExpression = "";
			this.lastFilterExpression = "";
		},

		sync: function ( method, model, options ) {

			var self = this;

			// Create default values if no others are specified
			_.defaults(self.paginator_ui, {
				firstPage: 0,
				currentPage: 1,
				perPage: 5,
				totalPages: 10
			});
			
			// Change scope of 'paginator_ui' object values
			_.each(self.paginator_ui, function(value, key) {
				if( _.isUndefined(self[key]) ) {
					self[key] = self.paginator_ui[key];
				}
			});
		
			// Some values could be functions, let's make sure
			// to change their scope too and run them
			var queryAttributes = {};
			_.each(self.server_api, function(value, key){
				if( _.isFunction(value) ) {
					value = _.bind(value, self);
					value = value();
				}
				queryAttributes[key] = value;
			});
			
			var queryOptions = _.clone(self.paginator_core);
			_.each(queryOptions, function(value, key){
				if( _.isFunction(value) ) {
					value = _.bind(value, self);
					value = value();
				}
				queryOptions[key] = value;
			});
			
			// Create default values if no others are specified
			queryOptions = _.defaults(queryOptions, {
				timeout: 25000,
				cache: false,
				type: 'GET',
				dataType: 'jsonp'
			});

			queryOptions = _.extend(queryOptions, {
				jsonpCallback: 'callback',
				data: decodeURIComponent($.param(queryAttributes)),
				processData: false,
				url: _.result(queryOptions, 'url')
			}, options);
			
			return $.ajax( queryOptions );

		},

		nextPage: function () {
			this.currentPage = ++this.currentPage;
			this.pager();
		},

		previousPage: function () {
			this.currentPage = --this.currentPage || 1;
			this.pager();
		},

		goTo: function ( page ) {
			if(page !== undefined){
				this.currentPage = parseInt(page, 10);
				this.pager();
			}
		},

		howManyPer: function ( perPage ) {
			if(perPage !== undefined){
				var lastPerPage = this.perPage;
				this.perPage = parseInt(perPage, 10);
				this.currentPage = Math.ceil( ( lastPerPage * ( this.currentPage - 1 ) + 1 ) / perPage);
				this.pager();
			}
		},


		// setSort is used to sort the current model. After
		// passing 'column', which is the model's field you want
		// to filter and 'direction', which is the direction
		// desired for the ordering ('asc' or 'desc'), pager()
		// and info() will be called automatically.
		setSort: function ( column, direction ) {
			if(column !== undefined && direction !== undefined){
				this.lastSortColumn = this.sortColumn;
				this.sortColumn = column;
				this.sortDirection = direction;
				this.pager();
				this.info();
			}
		},

		// setFieldFilter is used to filter each value of each model
		// according to `rules` that you pass as argument.
		// Example: You have a collection of books with 'release year' and 'author'.
		// You can filter only the books that were released between 1999 and 2003
		// And then you can add another `rule` that will filter those books only to
		// authors who's name start with 'A'.
		setFieldFilter: function ( fieldFilterRules ) {
			if( !_.isEmpty( fieldFilterRules ) ) {
				this.lastFieldFilterRules = this.fieldFilterRules;
				this.fieldFilterRules = fieldFilterRules;
				this.pager();
				this.info();
			}
		},

		// doFakeFieldFilter can be used to get the number of models that will remain
		// after calling setFieldFilter with a filter rule(s)
		doFakeFieldFilter: function ( fieldFilterRules ) {
			if( !_.isEmpty( fieldFilterRules ) ) {
				var bkp_lastFieldFilterRules = this.lastFieldFilterRules;
				var bkp_fieldFilterRules = this.fieldFilterRules;

				this.lastFieldFilterRules = this.fieldFilterRules;
				this.fieldFilterRules = fieldFilterRules;
				this.pager();
				this.info();

				var cmodels = this.models.length;

				this.lastFieldFilterRules = bkp_lastFieldFilterRules;
				this.fieldFilterRules = bkp_fieldFilterRules;
				this.pager();
				this.info();

				// Return size
				return cmodels;
			}
		},
    
		// setFilter is used to filter the current model. After
		// passing 'fields', which can be a string referring to
		// the model's field, an array of strings representing
		// each of the model's fields or an object with the name
		// of the model's field(s) and comparing options (see docs)
		// you wish to filter by and
		// 'filter', which is the word or words you wish to 
		// filter by, pager() and info() will be called automatically.
		setFilter: function ( fields, filter ) {
			if( fields !== undefined && filter !== undefined ){
				this.filterFields = fields;
				this.lastFilterExpression = this.filterExpression;
				this.filterExpression = filter;
				this.pager();
				this.info();
			}
		},

		// doFakeFilter can be used to get the number of models that will
		// remain after calling setFilter with a `fields` and `filter` args. 
		doFakeFilter: function ( fields, filter ) {
			if( fields !== undefined && filter !== undefined ){
				var bkp_filterFields = this.filterFields;
				var bkp_lastFilterExpression = this.lastFilterExpression;
				var bkp_filterExpression = this.filterExpression;

				this.filterFields = fields;
				this.lastFilterExpression = this.filterExpression;
				this.filterExpression = filter;
				this.pager();
				this.info();

				var cmodels = this.models.length;

				this.filterFields = bkp_filterFields;
				this.lastFilterExpression = bkp_lastFilterExpression;
				this.filterExpression = bkp_filterExpression;
				this.pager();
				this.info();

				// Return size
				return cmodels;
			}
		},

		// pager is used to sort, filter and show the data 
		// you expect the library to display.
		pager: function () {
			var self = this,
				disp = this.perPage,
				start = (self.currentPage - 1) * disp,
				stop = start + disp;

			// Saving the original models collection is important
			// as we could need to sort or filter, and we don't want
			// to loose the data we fetched from the server.
			if (self.origModels === undefined) {
				self.origModels = self.models;
			}

			self.models = self.origModels;

			// Check if sorting was set using setSort.
			if ( this.sortColumn !== "" ) {
				self.models = self._sort(self.models, this.sortColumn, this.sortDirection);
			}

			// Check if field-filtering was set using setFieldFilter
			if ( !_.isEmpty( this.fieldFilterRules ) ) {
				self.models = self._fieldFilter(self.models, this.fieldFilterRules);
			}

			// Check if filtering was set using setFilter.
			if ( this.filterExpression !== "" ) {
				self.models = self._filter(self.models, this.filterFields, this.filterExpression);
			}
      
			// If the sorting or the filtering was changed go to the first page
			if ( this.lastSortColumn !== this.sortColumn || this.lastFilterExpression !== this.filterExpression || !_.isEqual(this.fieldFilterRules, this.lastFieldFilterRules) ) {
				start = 0;
				stop = start + disp;
				self.currentPage = 1;

				this.lastSortColumn = this.sortColumn;
				this.lastFieldFilterRules = this.fieldFilterRules;
				this.lastFilterExpression = this.filterExpression;
			}
			
			// We need to save the sorted and filtered models collection
			// because we'll use that sorted and filtered collection in info().
			self.sortedAndFilteredModels = self.models;

			self.reset(self.models.slice(start, stop));
		},

		// The actual place where the collection is sorted.
		// Check setSort for arguments explicacion.
		_sort: function ( models, sort, direction ) {
			models = models.sort(function (a, b) {
				var ac = a.get(sort),
					bc = b.get(sort);
				
				if ( !ac || !bc ) {
					return 0;
				} else {
					/* Make sure that both ac and bc are lowercase strings.
					* .toString() first so we don't have to worry if ac or bc
					* have other String-only methods.
					*/
					ac = ac.toString().toLowerCase();
					bc = bc.toString().toLowerCase();
				}
				
				if (direction === 'desc') {

					// We need to know if there aren't any non-number characters
					// and that there are numbers-only characters and maybe a dot
					// if we have a float.
					if((!ac.match(/[^\d\.]/) && ac.match(/[\d\.]*/)) && 
						(!bc.match(/[^\d\.]/) && bc.match(/[\d\.]*/))
					){
					
						if( (ac - 0) < (bc - 0) ) {
							return 1;
						}
						if( (ac - 0) > (bc - 0) ) {
							return -1;
						}
					} else {
						if (ac < bc) {
							return 1;
						}
						if (ac > bc) {
							return -1;
						}
					}
					
				} else {

					//Same as the regexp check in the 'if' part.
					if((!ac.match(/[^\d\.]/) && ac.match(/[\d\.]*/)) && 
						(!bc.match(/[^\d\.]/) && bc.match(/[\d\.]*/)) 
					){
						if( (ac - 0) < (bc - 0) ) {
							return -1;
						}
						if( (ac - 0) > (bc - 0) ) {
							return 1;
						}
					} else {
						if (ac < bc) {
							return -1;
						}
						if (ac > bc) {
							return 1;
						}
					}

				}

				return 0;
			});

			return models;
		},
    
		// The actual place where the collection is field-filtered.
		// Check setFieldFilter for arguments explicacion.
		_fieldFilter: function( models, rules ) {

			// Check if there are any rules
			if ( _.isEmpty(rules) ) {
				return models;
			}

			var filteredModels = [];

			// Iterate over each rule
			_.each(models, function(model){

				var should_push = true;
			
				// Apply each rule to each model in the collection
				_.each(rules, function(rule){

					// Don't go inside the switch if we're already sure that the model won't be included in the results
					if( !should_push ){
						return false;
					}

					should_push = false;
				
					// The field's value will be passed to a custom function, which should
					// return true (if model should be included) or false (model should be ignored)
					if(rule.type === "function"){
						var f = _.wrap(rule.value, function(func){
							return func( model.get(rule.field) );
						});
						if( f() ){
							should_push = true;
						}

					// The field's value is required to be non-empty
					}else if(rule.type === "required"){
						if( !_.isEmpty( model.get(rule.field).toString() ) ) {
							should_push = true;
						}

					// The field's value is required to be greater tan N (numbers only)
					}else if(rule.type === "min"){
						if( !_.isNaN( Number( model.get(rule.field) ) ) &&
							!_.isNaN( Number( rule.value ) ) &&
							Number( model.get(rule.field) ) >= Number( rule.value ) ) {
							should_push = true;
						}

					// The field's value is required to be smaller tan N (numbers only)
					}else if(rule.type === "max"){
						if( !_.isNaN( Number( model.get(rule.field) ) ) &&
							!_.isNaN( Number( rule.value ) ) &&
							Number( model.get(rule.field) ) <= Number( rule.value ) ) {
							should_push = true;
						}

					// The field's value is required to be between N and M (numbers only)
					}else if(rule.type === "range"){
						if( !_.isNaN( Number( model.get(rule.field) ) ) &&
							_.isObject( rule.value ) &&
							!_.isNaN( Number( rule.value.min ) ) &&
							!_.isNaN( Number( rule.value.max ) ) &&
							Number( model.get(rule.field) ) >= Number( rule.value.min ) &&
							Number( model.get(rule.field) ) <= Number( rule.value.max ) ) {
							should_push = true;
						}

					// The field's value is required to be more than N chars long
					}else if(rule.type === "minLength"){
						if( model.get(rule.field).toString().length >= rule.value ) {
							should_push = true;
						}

					// The field's value is required to be no more than N chars long
					}else if(rule.type === "maxLength"){
						if( model.get(rule.field).toString().length <= rule.value ) {
							should_push = true;
						}

					// The field's value is required to be more than N chars long and no more than M chars long
					}else if(rule.type === "rangeLength"){
						if( _.isObject( rule.value ) &&
							!_.isNaN( Number( rule.value.min ) ) &&
							!_.isNaN( Number( rule.value.max ) ) &&
							model.get(rule.field).toString().length >= rule.value.min &&
							model.get(rule.field).toString().length <= rule.value.max ) {
							should_push = true;
						}

					// The field's value is required to be equal to one of the values in rules.value
					}else if(rule.type === "oneOf"){
						if( _.isArray( rule.value ) &&
							_.include( rule.value, model.get(rule.field) ) ) {
							should_push = true;
						}

					// The field's value is required to be equal to the value in rules.value
					}else if(rule.type === "equalTo"){
						if( rule.value === model.get(rule.field) ) {
							should_push = true;
						}

					// The field's value is required to match the regular expression
					}else if(rule.type === "pattern"){
						if( model.get(rule.field).toString().match(rule.value) ) {
							should_push = true;
						}

					//Unknown type
					}else{
						should_push = false;
					}

				});
				
				if( should_push ){
					filteredModels.push(model);
				}

			});

			return filteredModels;
		},
    
		// The actual place where the collection is filtered.
		// Check setFilter for arguments explicacion.
		_filter: function ( models, fields, filter ) {
		
			//  For example, if you had a data model containing cars like { color: '', description: '', hp: '' },
			//  your fields was set to ['color', 'description', 'hp'] and your filter was set
			//  to "Black Mustang 300", the word "Black" will match all the cars that have black color, then
			//  "Mustang" in the description and then the HP in the 'hp' field.
			//  NOTE: "Black Musta 300" will return the same as "Black Mustang 300"

			// We accept fields to be a string, an array or an object
			// but if string or array is passed we need to convert it
			// to an object.
			
			var self = this;
			
			var obj_fields = {};
			
			if( _.isString( fields ) ) {
				obj_fields[fields] = {cmp_method: 'regexp'};
			}else if( _.isArray( fields ) ) {
				_.each(fields, function(field){
					obj_fields[field] = {cmp_method: 'regexp'};
				});
			}else{
				_.each(fields, function( cmp_opts, field ) {
					obj_fields[field] = _.defaults(cmp_opts, { cmp_method: 'regexp' });
				});
			}
			
			fields = obj_fields;
			
			//Remove diacritic characters if diacritic plugin is loaded
			if( _.has(Backbone.Paginator, 'removeDiacritics') && self.useDiacriticsPlugin ){
				filter = Backbone.Paginator.removeDiacritics(filter);
			}
			
			// 'filter' can be only a string.
			// If 'filter' is string we need to convert it to 
			// a regular expression. 
			// For example, if 'filter' is 'black dog' we need
			// to find every single word, remove duplicated ones (if any)
			// and transform the result to '(black|dog)'
			if( filter === '' || !_.isString(filter) ) {
				return models;
			} else {
				var words = filter.match(/\w+/ig);
				var pattern = "(" + _.uniq(words).join("|") + ")";
				var regexp = new RegExp(pattern, "igm");
			}
			
			var filteredModels = [];

			// We need to iterate over each model
			_.each( models, function( model ) {

				var matchesPerModel = [];

				// and over each field of each model
				_.each( fields, function( cmp_opts, field ) {

					var value = model.get( field );

					if( value ) {
					
						// The regular expression we created earlier let's us detect if a
						// given string contains each and all of the words in the regular expression
						// or not, but in both cases match() will return an array containing all 
						// the words it matched.
						var matchesPerField = [];
						
						if( _.has(Backbone.Paginator, 'removeDiacritics') && self.useDiacriticsPlugin ){
							value = Backbone.Paginator.removeDiacritics(value.toString());
						}else{
							value = value.toString();
						}

						// Levenshtein cmp
						if( cmp_opts.cmp_method === 'levenshtein' && _.has(Backbone.Paginator, 'levenshtein') && self.useLevenshteinPlugin ) {
							var distance = Backbone.Paginator.levenshtein(value, filter);

							_.defaults(cmp_opts, { max_distance: 0 });

							if( distance <= cmp_opts.max_distance ) {
								matchesPerField = _.uniq(words);
							}

						// Default (RegExp) cmp
						}else{
							matchesPerField = value.match( regexp );
						}

						matchesPerField = _.map(matchesPerField, function(match) {
							return match.toString().toLowerCase();
						});

						_.each(matchesPerField, function(match){
							matchesPerModel.push(match);
						});

					}

				});

				// We just need to check if the returned array contains all the words in our
				// regex, and if it does, it means that we have a match, so we should save it.
				matchesPerModel = _.uniq( _.without(matchesPerModel, "") );

				if(  _.isEmpty( _.difference(words, matchesPerModel) ) ) {
					filteredModels.push(model);
				}
				
			});

			return filteredModels;
		},

		// You shouldn't need to call info() as this method is used to
		// calculate internal data as first/prev/next/last page...
		info: function () {
			var self = this,
				info = {},
				totalRecords = (self.sortedAndFilteredModels) ? self.sortedAndFilteredModels.length : self.length,
				totalPages = Math.ceil(totalRecords / self.perPage);

			info = {
				totalUnfilteredRecords: self.origModels.length,
				totalRecords: totalRecords,
				currentPage: self.currentPage,
				perPage: this.perPage,
				totalPages: totalPages,
				lastPage: totalPages,
				previous: false,
				next: false,
				startRecord: totalRecords === 0 ? 0 : (self.currentPage - 1) * this.perPage + 1,
				endRecord: Math.min(totalRecords, self.currentPage * this.perPage) 
			};

			if (self.currentPage > 1) {
				info.previous = self.currentPage - 1;
			}

			if (self.currentPage < info.totalPages) {
				info.next = self.currentPage + 1;
			}

			info.pageSet = self.setPagination(info);

			self.information = info;			
			return info;
		},


		// setPagination also is an internal function that shouldn't be called directly.
		// It will create an array containing the pages right before and right after the
		// actual page.
		setPagination: function ( info ) {
			var pages = [], i = 0, l = 0;


			// How many adjacent pages should be shown on each side?
			var ADJACENT = 3,
				ADJACENTx2 = ADJACENT * 2,
				LASTPAGE = Math.ceil(info.totalRecords / info.perPage),
				LPM1 = -1;

			if (LASTPAGE > 1) {
				// not enough pages to bother breaking it up
				if (LASTPAGE < (7 + ADJACENTx2)) {
					for (i = 1, l = LASTPAGE; i <= l; i++) {
						pages.push(i);
					}
				}
				// enough pages to hide some
				else if (LASTPAGE > (5 + ADJACENTx2)) {

					//close to beginning; only hide later pages
					if (info.currentPage < (1 + ADJACENTx2)) {
						for (i = 1, l = 4 + ADJACENTx2; i < l; i++) {
							pages.push(i);
						}
					}

					// in middle; hide some front and some back
					else if (LASTPAGE - ADJACENTx2 > info.currentPage && info.currentPage > ADJACENTx2) {
						for (i = info.currentPage - ADJACENT; i <= info.currentPage + ADJACENT; i++) {
							pages.push(i);
						}
					}
					// close to end; only hide early pages
					else {
						for (i = LASTPAGE - (2 + ADJACENTx2); i <= LASTPAGE; i++) {
							pages.push(i);
						}
					}
				}
			}

			return pages;
		}

	});


	// @name: requestPager
	//
	// Paginator for server-side data being requested from a backend/API
	//
	// @description:
	// This paginator is responsible for providing pagination
	// and sort capabilities for requests to a server-side
	// data service (e.g an API)
	//
	Paginator.requestPager = Backbone.Collection.extend({

		sync: function ( method, model, options ) {

			var self = this;
			
			// Create default values if no others are specified
			_.defaults(self.paginator_ui, {
				firstPage: 0,
				currentPage: 1,
				perPage: 5,
				totalPages: 10
			});
			
			// Change scope of 'paginator_ui' object values
			_.each(self.paginator_ui, function(value, key) {
				if( _.isUndefined(self[key]) ) {
					self[key] = self.paginator_ui[key];
				}
			});
		
			// Some values could be functions, let's make sure
			// to change their scope too and run them
			var queryAttributes = {};
			_.each(self.server_api, function(value, key){
				if( _.isFunction(value) ) {
					value = _.bind(value, self);
					value = value();
				}
				queryAttributes[key] = value;
			});
			
			var queryOptions = _.clone(self.paginator_core);
			_.each(queryOptions, function(value, key){
				if( _.isFunction(value) ) {
					value = _.bind(value, self);
					value = value();
				}
				queryOptions[key] = value;
			});
			
			// Create default values if no others are specified
			queryOptions = _.defaults(queryOptions, {
				timeout: 25000,
				cache: false,
				type: 'GET',
				dataType: 'jsonp'
			});

			// Allows the passing in of {data: {foo: 'bar'}} at request time to overwrite server_api defaults
			if( options.data ){
				options.data = decodeURIComponent($.param(_.extend(queryAttributes,options.data)));
			}else{
				options.data = decodeURIComponent($.param(queryAttributes));
			}

			queryOptions = _.extend(queryOptions, {
				jsonpCallback: 'callback',
				processData: false,
				url: _.result(queryOptions, 'url')
			}, options);
			
			return $.ajax( queryOptions );

		},
		
		requestNextPage: function ( options ) {
			if ( this.currentPage !== undefined ) {
				this.currentPage += 1;
				return this.pager( options );
			} else {
				var response = new $.Deferred();
				response.reject();
				return response.promise();
			}
		},

		requestPreviousPage: function ( options ) {
			if ( this.currentPage !== undefined ) {
				this.currentPage -= 1;
				return this.pager( options );
			} else {
				var response = new $.Deferred();
				response.reject();
				return response.promise();
			}
		},

		updateOrder: function ( column ) {
			if (column !== undefined) {
				this.sortField = column;
				this.pager();
			}

		},

		goTo: function ( page, options ) {
			if ( page !== undefined ) {
				this.currentPage = parseInt(page, 10);
				return this.pager( options );
			} else {
				var response = new $.Deferred();
				response.reject();
				return response.promise();
			}
		},

		howManyPer: function ( count ) {
			if( count !== undefined ){
				this.currentPage = this.firstPage;
				this.perPage = count;
				this.pager();				
			}
		},

		sort: function () {
			//assign to as needed.
		},

		info: function () {

			var info = {
				// If parse() method is implemented and totalRecords is set to the length
				// of the records returned, make it available. Else, default it to 0
				totalRecords: this.totalRecords || 0,

				currentPage: this.currentPage,
				firstPage: this.firstPage,
				totalPages: this.totalPages,
				lastPage: this.totalPages,
				perPage: this.perPage
			};

			this.information = info;
			return info;
		},

		// fetches the latest results from the server
		pager: function ( options ) {
			if ( !_.isObject(options) ) {
				options = {};
			}
			return this.fetch( options );
		}


	});

	return Paginator;

}( Backbone, _, jQuery ));
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