"

From 2012.igem.org

/**

* jquery.swatchbook.js v1.0.0
* http://www.codrops.com
*
* Licensed under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
* 
* Copyright 2012, Codrops
* http://www.codrops.com
*/

( function( window, $, undefined ) {

'use strict';

var Modernizr = window.Modernizr;

jQuery.fn.reverse = [].reverse;

$.SwatchBook = function( options, element ) {

this.$el = $( element ); this._init( options );

};

$.SwatchBook.defaults = { // index of initial centered item center : 6, // number of degrees that is between each item angleInc : 8, speed : 700, easing : 'ease', // amount in degrees for the opened item's next sibling proximity : 45, // amount in degrees between the opened item's next siblings neighbor : 4, // animate on load onLoadAnim : true, // if it should be closed by default initclosed : false, // index of the element that when clicked, triggers the open/close function // by default there is no such element closeIdx : -1 };

$.SwatchBook.prototype = {

_init : function( options ) {

this.options = $.extend( true, {}, $.SwatchBook.defaults, options );

this.$items = this.$el.children( 'div' ); this.itemsCount = this.$items.length; this.current = -1; this.support = Modernizr.csstransitions; this.cache = [];

if( this.options.onLoadAnim ) {

this._setTransition();

}

if( !this.options.initclosed ) {

this._center( this.options.center, this.options.onLoadAnim );

} else {

this.isClosed = true; if( !this.options.onLoadAnim ) {

this._setTransition();

}

}

this._initEvents();

}, _setTransition : function() {

if( !this.support ) {

return false;

}

this.$items.css( { '-webkit-transition': '-webkit-transform ' + this.options.speed + 'ms ' + this.options.easing, '-moz-transition' : '-moz-transform ' + this.options.speed + 'ms ' + this.options.easing, '-o-transition' : '-o-transform ' + this.options.speed + 'ms ' + this.options.easing, '-ms-transition' : '-ms-transform ' + this.options.speed + 'ms ' + this.options.easing, 'transition' : 'transform ' + this.options.speed + 'ms ' + this.options.easing } );

}, _openclose : function() {

var _self = this;

if( this.isClosed ) {

this._center( this.options.center, true );

} else {

this.$items.each( function( i ) {

var transformStr = 'rotate(0deg)';

$( this ).css( { '-webkit-transform' : transformStr, '-moz-transform' : transformStr, '-o-transform' : transformStr, '-ms-transform' : transformStr, 'transform' : transformStr } );

} );

}

this.isClosed = !this.isClosed;

}, _center : function( idx, anim ) {

var _self = this;

this.$items.each( function( i ) {

var transformStr = 'rotate(' + ( _self.options.angleInc * ( i - idx ) ) + 'deg)';

$( this ).css( { '-webkit-transform' : transformStr, '-moz-transform' : transformStr, '-o-transform' : transformStr, '-ms-transform' : transformStr, 'transform' : transformStr } );

} );

}, _initEvents : function() {

var _self = this;

this.$items.on( 'click.swatchbook', function( event ) {

var $item = $( this ), itmIdx = $item.index();

if( itmIdx !== _self.current ) {

if( _self.options.closeIdx !== -1 && itmIdx === _self.options.closeIdx ) {

_self._openclose(); _self._setCurrent();

} else {

_self._setCurrent( $item );

var transformStr = 'rotate(0deg)';

$item.css( { '-webkit-transform' : transformStr, '-moz-transform' : transformStr, '-o-transform' : transformStr, '-ms-transform' : transformStr, 'transform' : transformStr } );

_self._rotateSiblings( $item );

}

}

} );

}, _rotateSiblings : function( $item ) {

var _self = this, idx = $item.index(), $cached = this.cache[ idx ], $siblings;

if( $cached ) {

$siblings = $cached;

} else {

$siblings = $item.siblings(); this.cache[ idx ] = $siblings;

}

$siblings.each( function( i ) {

var rotateVal = ( i < idx ) ? _self.options.angleInc * ( i - idx ) : ( i - idx === 1 ) ? _self.options.proximity : _self.options.proximity + ( i - idx - 1 ) * _self.options.neighbor;

var transformStr = 'rotate(' + rotateVal + 'deg)';

$( this ).css( { '-webkit-transform' : transformStr, '-moz-transform' : transformStr, '-o-transform' : transformStr, '-ms-transform' : transformStr, 'transform' : transformStr } );

} );

}, _setCurrent : function( $el ) {

this.current = $el ? $el.index() : -1; this.$items.removeClass( 'ff-active' ); if( $el ) {

$el.addClass( 'ff-active' );

}

}

};

var logError = function( message ) {

if ( window.console ) {

window.console.error( message );

}

};

$.fn.swatchbook = function( options ) {

if ( typeof options === 'string' ) {

var args = Array.prototype.slice.call( arguments, 1 );

this.each(function() {

var instance = $.data( this, 'swatchbook' );

if ( !instance ) {

logError( "cannot call methods on swatchbook prior to initialization; " + "attempted to call method '" + options + "'" ); return;

}

if ( !$.isFunction( instance[options] ) || options.charAt(0) === "_" ) {

logError( "no such method '" + options + "' for swatchbook instance" ); return;

}

instance[ options ].apply( instance, args );

});

} else {

this.each(function() {

var instance = $.data( this, 'swatchbook' ); if ( !instance ) {

$.data( this, 'swatchbook', new $.SwatchBook( options, this ) );

}

});

}

return this;

};

} )( window, jQuery );