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/*
 *  jQuery StarRatingSvg v1.2.0
 *
 *  http://github.com/nashio/star-rating-svg
 *  Author: Ignacio Chavez
 *  hello@ignaciochavez.com
 *  Licensed under MIT
 */

;(function ( $, window, document, undefined ) {

'use strict';

// Create the defaults once
    var pluginName = 'starRating';
    var noop = function(){};
    var defaults = {
        totalStars: 5,
        useFullStars: false,
        starShape: 'straight',
        emptyColor: 'lightgray',
        hoverColor: 'orange',
        activeColor: 'gold',
        ratedColor: 'crimson',
        useGradient: true,
        readOnly: false,
        disableAfterRate: true,
        baseUrl: false,
        starGradient: {
            start: '#FEF7CD',
            end: '#FF9511'
        },
        strokeWidth: 4,
        strokeColor: 'black',
        initialRating: 0,
        starSize: 40,
        callback: noop,
        onHover: noop,
        onLeave: noop
    };

// The actual plugin constructor
    var Plugin = function( element, options ) {
        var _rating;
        var newRating;
        var roundFn;

this.element = element;
        this.$el = $(element);
        this.settings = $.extend( {}, defaults, options );

// grab rating if defined on the element
        _rating = this.$el.data('rating') || this.settings.initialRating;

// round to the nearest half
        roundFn = this.settings.forceRoundUp ? Math.ceil : Math.round;
        newRating = (roundFn( _rating * 2 ) / 2).toFixed(1);
        this._state = {
            rating: newRating
        };

// create unique id for stars
        this._uid = Math.floor( Math.random() * 999 );

// override gradient if not used
        if( !options.starGradient && !this.settings.useGradient ){
            this.settings.starGradient.start = this.settings.starGradient.end = this.settings.activeColor;
        }

this._defaults = defaults;
        this._name = pluginName;
        this.init();
    };

var methods = {
        init: function () {
            this.renderMarkup();
            this.addListeners();
            this.initRating();
        },

addListeners: function(){
            if( this.settings.readOnly ){ return; }
            this.$stars.on('mouseover', this.hoverRating.bind(this));
            this.$stars.on('mouseout', this.restoreState.bind(this));
            this.$stars.on('click', this.handleRating.bind(this));
        },

// apply styles to hovered stars
        hoverRating: function(e){
            var index = this.getIndex(e);
            this.paintStars(index, 'hovered');
            this.settings.onHover(index + 1, this._state.rating, this.$el);
        },

// clicked on a rate, apply style and state
        handleRating: function(e){
            var index = this.getIndex(e);
            var rating = index + 1;

this.applyRating(rating, this.$el);
            this.executeCallback( rating, this.$el );

if(this.settings.disableAfterRate){
                this.$stars.off();
            }
        },

applyRating: function(rating){
            var index = rating - 1;
            // paint selected and remove hovered color
            this.paintStars(index, 'rated');
            this._state.rating = index + 1;
            this._state.rated = true;
        },

restoreState: function(e){
            var index = this.getIndex(e);
            var rating = this._state.rating || -1;
            // determine star color depending on manually rated
            var colorType = this._state.rated ? 'rated' : 'active';
            this.paintStars(rating - 1, colorType);
            this.settings.onLeave(index + 1, this._state.rating, this.$el);
        },

getIndex: function(e){
            var $target = $(e.currentTarget);
            var width = $target.width();
            var side = $(e.target).attr('data-side');
            var minRating = this.settings.minRating;

// hovered outside the star, calculate by pixel instead
            side = (!side) ? this.getOffsetByPixel(e, $target, width) : side;
            side = (this.settings.useFullStars) ? 'right' : side ;

// get index for half or whole star
            var index = $target.index() - ((side === 'left') ? 0.5 : 0);

// pointer is way to the left, rating should be none
            index = ( index < 0.5 && (e.offsetX < width / 4) ) ? -1 : index;

// force minimum rating
            index = ( minRating && minRating <= this.settings.totalStars && index < minRating ) ? minRating - 1 : index;
            return index;
        },

getOffsetByPixel: function(e, $target, width){
            var leftX = e.pageX - $target.offset().left;
            return ( leftX <= (width / 2) && !this.settings.useFullStars) ? 'left' : 'right';
        },

initRating: function(){
            this.paintStars(this._state.rating - 1, 'active');
        },

paintStars: function(endIndex, stateClass){
            var $polygonLeft;
            var $polygonRight;
            var leftClass;
            var rightClass;
            var s = this.settings;

$.each(this.$stars, function(index, star){
                $polygonLeft = $(star).find('[data-side="left"]');
                $polygonRight = $(star).find('[data-side="right"]');
                leftClass = rightClass = (index <= endIndex) ? stateClass : 'empty';

// has another half rating, add half star
                leftClass = ( index - endIndex === 0.5 ) ? stateClass : leftClass;

$polygonLeft.attr('class', 'svg-'  + leftClass + '-' + this._uid);
                $polygonRight.attr('class', 'svg-'  + rightClass + '-' + this._uid);

// get color for level
                var ratedColorsIndex = endIndex >= 0 ? Math.ceil(endIndex) : 0;

var ratedColor;
                if (s.ratedColors && s.ratedColors.length && s.ratedColors[ratedColorsIndex]) {
                    ratedColor = s.ratedColors[ratedColorsIndex];
                } else {
                    ratedColor = this._defaults.ratedColor;
                }

// only override colors in rated stars and when rated number is valid
                if (stateClass === 'rated' && endIndex > -1) {
                    // limit to painting only to rated stars, and specific case for half star
                    if (index <= Math.ceil(endIndex) || (index < 1 && endIndex < 0)) {
                        $polygonLeft.attr('style', 'fill:'+ratedColor);
                    }
                    if (index <= endIndex) {
                        $polygonRight.attr('style', 'fill:'+ratedColor);
                    }
                }
            }.bind(this));
        },

renderMarkup: function () {
            var s = this.settings;
            var baseUrl = s.baseUrl ? location.href.split('#')[0] : '';

// inject an svg manually to have control over attributes
            var star = '<div class="jq-star" style="width:' + s.starSize+ 'px;  height:' + s.starSize + 'px;"><svg version="1.0" class="jq-star-svg" shape-rendering="geometricPrecision" xmlns="http://www.w3.org/2000/svg" ' + this.getSvgDimensions(s.starShape) +  ' stroke-width:' + s.strokeWidth + 'px;" xml:space="preserve"><style type="text/css">.svg-empty-' + this._uid + '{fill:url(' + baseUrl + '#' + this._uid + '_SVGID_1_);}.svg-hovered-' + this._uid + '{fill:url(' + baseUrl + '#' + this._uid + '_SVGID_2_);}.svg-active-' + this._uid + '{fill:url(' + baseUrl + '#' + this._uid + '_SVGID_3_);}.svg-rated-' + this._uid + '{fill:' + s.ratedColor + ';}</style>' +

this.getLinearGradient(this._uid + '_SVGID_1_', s.emptyColor, s.emptyColor, s.starShape) +
                this.getLinearGradient(this._uid + '_SVGID_2_', s.hoverColor, s.hoverColor, s.starShape) +
                this.getLinearGradient(this._uid + '_SVGID_3_', s.starGradient.start, s.starGradient.end, s.starShape) +
                this.getVectorPath(this._uid, {
                    starShape: s.starShape,
                    strokeWidth: s.strokeWidth,
                    strokeColor: s.strokeColor
                } ) +
                '</svg></div>';

// inject svg markup
            var starsMarkup = '';
            for( var i = 0; i < s.totalStars; i++){
                starsMarkup += star;
            }
            this.$el.append(starsMarkup);
            this.$stars = this.$el.find('.jq-star');
        },

getVectorPath: function(id, attrs){
            return (attrs.starShape === 'rounded') ?
                this.getRoundedVectorPath(id, attrs) : this.getSpikeVectorPath(id, attrs);
        },

getSpikeVectorPath: function(id, attrs){
            return '<polygon data-side="center" class="svg-empty-' + id + '" points="281.1,129.8 364,55.7 255.5,46.8 214,-59 172.5,46.8 64,55.4 146.8,129.7 121.1,241 212.9,181.1 213.9,181 306.5,241 " style="fill: transparent; stroke: ' + attrs.strokeColor + ';" />' +
                '<polygon data-side="left" class="svg-empty-' + id + '" points="281.1,129.8 364,55.7 255.5,46.8 214,-59 172.5,46.8 64,55.4 146.8,129.7 121.1,241 213.9,181.1 213.9,181 306.5,241 " style="stroke-opacity: 0;" />' +
                '<polygon data-side="right" class="svg-empty-' + id + '" points="364,55.7 255.5,46.8 214,-59 213.9,181 306.5,241 281.1,129.8 " style="stroke-opacity: 0;" />';
        },

getRoundedVectorPath: function(id, attrs){
            var fullPoints = 'M520.9,336.5c-3.8-11.8-14.2-20.5-26.5-22.2l-140.9-20.5l-63-127.7 c-5.5-11.2-16.8-18.2-29.3-18.2c-12.5,0-23.8,7-29.3,18.2l-63,127.7L28,314.2C15.7,316,5.4,324.7,1.6,336.5S1,361.3,9.9,370 l102,99.4l-24,140.3c-2.1,12.3,2.9,24.6,13,32c5.7,4.2,12.4,6.2,19.2,6.2c5.2,0,10.5-1.2,15.2-3.8l126-66.3l126,66.2 c4.8,2.6,10,3.8,15.2,3.8c6.8,0,13.5-2.1,19.2-6.2c10.1-7.3,15.1-19.7,13-32l-24-140.3l102-99.4 C521.6,361.3,524.8,348.3,520.9,336.5z';

return '<path data-side="center" class="svg-empty-' + id + '" d="' + fullPoints + '" style="stroke: ' + attrs.strokeColor + '; fill: transparent; " /><path data-side="right" class="svg-empty-' + id + '" d="' + fullPoints + '" style="stroke-opacity: 0;" /><path data-side="left" class="svg-empty-' + id + '" d="M121,648c-7.3,0-14.1-2.2-19.8-6.4c-10.4-7.6-15.6-20.3-13.4-33l24-139.9l-101.6-99 c-9.1-8.9-12.4-22.4-8.6-34.5c3.9-12.1,14.6-21.1,27.2-23l140.4-20.4L232,164.6c5.7-11.6,17.3-18.8,30.2-16.8c0.6,0,1,0.4,1,1 v430.1c0,0.4-0.2,0.7-0.5,0.9l-126,66.3C132,646.6,126.6,648,121,648z" style="stroke: ' + attrs.strokeColor + '; stroke-opacity: 0;" />';
        },

getSvgDimensions: function(starShape){
            return (starShape === 'rounded') ? 'width="550px" height="500.2px" viewBox="0 146.8 550 500.2" style="enable-background:new 0 0 550 500.2;' : 'x="0px" y="0px" width="305px" height="305px" viewBox="60 -62 309 309" style="enable-background:new 64 -59 305 305;';
        },

getLinearGradient: function(id, startColor, endColor, starShape){
            var height = (starShape === 'rounded') ? 500 : 250;
            return '<linearGradient id="' + id + '" gradientUnits="userSpaceOnUse" x1="0" y1="-50" x2="0" y2="' + height + '"><stop  offset="0" style="stop-color:' + startColor + '"/><stop  offset="1" style="stop-color:' + endColor + '"/> </linearGradient>';
        },

executeCallback: function(rating, $el){
            var callback = this.settings.callback;
            callback(rating, $el);
        }

};

var publicMethods = {

unload: function() {
            var _name = 'plugin_' + pluginName;
            var $el = $(this);
            var $starSet = $el.data(_name).$stars;
            $starSet.off();
            $el.removeData(_name).remove();
        },

setRating: function(rating, round) {
            var _name = 'plugin_' + pluginName;
            var $el = $(this);
            var $plugin = $el.data(_name);
            if( rating > $plugin.settings.totalStars || rating < 0 ) { return; }
            if( round ){
                rating = Math.round(rating);
            }
            $plugin.applyRating(rating);
        },

getRating: function() {
            var _name = 'plugin_' + pluginName;
            var $el = $(this);
            var $starSet = $el.data(_name);
            return $starSet._state.rating;
        },

resize: function(newSize) {
            var _name = 'plugin_' + pluginName;
            var $el = $(this);
            var $starSet = $el.data(_name);
            var $stars = $starSet.$stars;

if(newSize <= 1 || newSize > 200) {
                console.error('star size out of bounds');
                return;
            }

$stars = Array.prototype.slice.call($stars);
            $stars.forEach(function(star){
                $(star).css({
                    'width': newSize + 'px',
                    'height': newSize + 'px'
                });
            });
        },

setReadOnly: function(flag) {
            var _name = 'plugin_' + pluginName;
            var $el = $(this);
            var $plugin = $el.data(_name);
            if(flag === true){
                $plugin.$stars.off('mouseover mouseout click');
            } else {
                $plugin.settings.readOnly = false;
                $plugin.addListeners();
            }
        }

};

// Avoid Plugin.prototype conflicts
    $.extend(Plugin.prototype, methods);

$.fn[ pluginName ] = function ( options ) {

// if options is a public method
        if( !$.isPlainObject(options) ){
            if( publicMethods.hasOwnProperty(options) ){
                return publicMethods[options].apply(this, Array.prototype.slice.call(arguments, 1));
            } else {
                $.error('Method '+ options +' does not exist on ' + pluginName + '.js');
            }
        }

return this.each(function() {
            // preventing against multiple instantiations
            if ( !$.data( this, 'plugin_' + pluginName ) ) {
                $.data( this, 'plugin_' + pluginName, new Plugin( this, options ) );
            }
        });
    };

})( jQuery, window, document );