/*
* jQuery StarRatingSvg v1.2.0
*
* http://github.com/nashio/star-rating-svg
* http://nashio.github.io/star-rating-svg/demo/
* Author: Ignacio Chavez
* hello@ignaciochavez.com
* Licensed under MIT
*/
;(function ( $, window, document, undefined ) {
'use strict';
// Create the defaults once
var pluginName = 'starRating';
var noop = function(){};
var defaults = {
totalStars: 5,
useFullStars: false,
starShape: 'straight',
emptyColor: 'lightgray',
hoverColor: 'gold',
activeColor: 'gold',
ratedColor: 'gold',
useGradient: false,
readOnly: false,
disableAfterRate: false,
baseUrl: false,
starGradient: {
start: '#FEF7CD',
end: '#FF9511'
},
strokeWidth: 0,
strokeColor: 'black',
initialRating: 0,
starSize: 18,
callback: noop,
onHover: noop,
onLeave: noop
};
// The actual plugin constructor
var Plugin = function( element, options ) {
var _rating;
this.element = element;
this.$el = $(element);
this.settings = $.extend( {}, defaults, options );
// grab rating if defined on the element
_rating = this.$el.data('rating') || this.settings.initialRating;
this._state = {
// round to the nearest half
rating: (Math.round( _rating * 2 ) / 2).toFixed(1)
};
// 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');
// 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;
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;
$.each(this.$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);
$polygonRight.attr('class', 'svg-' + rightClass + '-' + this._uid);
}.bind(this));
},
renderMarkup: function () {
var s = this.settings;
var baseUrl = s.baseUrl ? location.href.split('#')[0] : '';
// inject an svg manually to have control over attributes
var star = '';
// inject svg markup
var starsMarkup = '';
for( var i = 0; i < s.totalStars; i++){
starsMarkup += star;
}
this.$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 '' +
'' +
'';
},
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 '';
},
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 ' ';
},
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.log('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 );