/**
* jquery.slitslider.js v1.1.0
* 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';
/*
* debouncedresize: special jquery event that happens once after a window resize
*
* latest version and complete readme available on github:
* https://github.com/louisremi/jquery-smartresize/blob/master/jquery.debouncedresize.js
*
* copyright 2011 @louis_remi
* licensed under the mit license.
*/
var $event = $.event,
$special,
resizetimeout;
$special = $event.special.debouncedresize = {
setup: function() {
$( this ).on( "resize", $special.handler );
},
teardown: function() {
$( this ).off( "resize", $special.handler );
},
handler: function( event, execasap ) {
// save the context
var context = this,
args = arguments,
dispatch = function() {
// set correct event type
event.type = "debouncedresize";
$event.dispatch.apply( context, args );
};
if ( resizetimeout ) {
cleartimeout( resizetimeout );
}
execasap ?
dispatch() :
resizetimeout = settimeout( dispatch, $special.threshold );
},
threshold: 20
};
// global
var $window = $( window ),
$document = $( document ),
modernizr = window.modernizr;
$.slitslider = function( options, element ) {
this.$elwrapper = $( element );
this._init( options );
};
$.slitslider.defaults = {
// transitions speed
speed : 800,
// if true the item's slices will also animate the opacity value
optopacity : false,
// amount (%) to translate both slices - adjust as necessary
translatefactor : 230,
// maximum possible angle
maxangle : 25,
// maximum possible scale
maxscale : 2,
// slideshow on / off
autoplay : false,
// keyboard navigation
keyboard : true,
// time between transitions
interval : 4000,
// callbacks
onbeforechange : function( slide, idx ) { return false; },
onafterchange : function( slide, idx ) { return false; }
};
$.slitslider.prototype = {
_init : function( options ) {
// options
this.options = $.extend( true, {}, $.slitslider.defaults, options );
// https://github.com/twitter/bootstrap/issues/2870
this.transendeventnames = {
'webkittransition' : 'webkittransitionend',
'moztransition' : 'transitionend',
'otransition' : 'otransitionend',
'mstransition' : 'mstransitionend',
'transition' : 'transitionend'
};
this.transendeventname = this.transendeventnames[ modernizr.prefixed( 'transition' ) ];
// suport for css 3d transforms and css transitions
this.support = modernizr.csstransitions && modernizr.csstransforms3d;
// the slider
this.$el = this.$elwrapper.children( '.sl-slider' );
// the slides
this.$slides = this.$el.children( '.sl-slide' ).hide();
// total slides
this.slidescount = this.$slides.length;
// current slide
this.current = 0;
// control if it's animating
this.isanimating = false;
// get container size
this._getsize();
// layout
this._layout();
// load some events
this._loadevents();
// slideshow
if( this.options.autoplay ) {
this._startslideshow();
}
},
// gets the current container width & height
_getsize : function() {
this.size = {
width : this.$elwrapper.outerwidth( true ),
height : this.$elwrapper.outerheight( true )
};
},
_layout : function() {
this.$slidewrapper = $( '' );
// wrap the slides
this.$slides.wrapall( this.$slidewrapper ).each( function( i ) {
var $slide = $( this ),
// vertical || horizontal
orientation = $slide.data( 'orientation' );
$slide.addclass( 'sl-slide-' + orientation )
.children()
.wrapall( '' )
.wrapall( '' );
} );
// set the right size of the slider/slides for the current window size
this._setsize();
// show first slide
this.$slides.eq( this.current ).show();
},
_navigate : function( dir, pos ) {
if( this.isanimating || this.slidescount < 2 ) {
return false;
}
this.isanimating = true;
var self = this,
$currentslide = this.$slides.eq( this.current );
// if position is passed
if( pos !== undefined ) {
this.current = pos;
}
// if not check the boundaries
else if( dir === 'next' ) {
this.current = this.current < this.slidescount - 1 ? ++this.current : 0;
}
else if( dir === 'prev' ) {
this.current = this.current > 0 ? --this.current : this.slidescount - 1;
}
this.options.onbeforechange( $currentslide, this.current );
// next slide to be shown
var $nextslide = this.$slides.eq( this.current ),
// the slide we want to cut and animate
$movingslide = ( dir === 'next' ) ? $currentslide : $nextslide,
// the following are the data attrs set for each slide
configdata = $movingslide.data(),
config = {};
config.orientation = configdata.orientation || 'horizontal',
config.slice1angle = configdata.slice1rotation || 0,
config.slice1scale = configdata.slice1scale || 1,
config.slice2angle = configdata.slice2rotation || 0,
config.slice2scale = configdata.slice2scale || 1;
this._validatevalues( config );
var cssstyle = config.orientation === 'horizontal' ? {
margintop : -this.size.height / 2
} : {
marginleft : -this.size.width / 2
},
// default slide's slices style
resetstyle = {
'transform' : 'translate(0%,0%) rotate(0deg) scale(1)',
opacity : 1
},
// slice1 style
slice1style = config.orientation === 'horizontal' ? {
'transform' : 'translatey(-' + this.options.translatefactor + '%) rotate(' + config.slice1angle + 'deg) scale(' + config.slice1scale + ')'
} : {
'transform' : 'translatex(-' + this.options.translatefactor + '%) rotate(' + config.slice1angle + 'deg) scale(' + config.slice1scale + ')'
},
// slice2 style
slice2style = config.orientation === 'horizontal' ? {
'transform' : 'translatey(' + this.options.translatefactor + '%) rotate(' + config.slice2angle + 'deg) scale(' + config.slice2scale + ')'
} : {
'transform' : 'translatex(' + this.options.translatefactor + '%) rotate(' + config.slice2angle + 'deg) scale(' + config.slice2scale + ')'
};
if( this.options.optopacity ) {
slice1style.opacity = 0;
slice2style.opacity = 0;
}
// we are adding the classes sl-trans-elems and sl-trans-back-elems to the slide that is either coming "next"
// or going "prev" according to the direction.
// the idea is to make it more interesting by giving some animations to the respective slide's elements
//( dir === 'next' ) ? $nextslide.addclass( 'sl-trans-elems' ) : $currentslide.addclass( 'sl-trans-back-elems' );
$currentslide.removeclass( 'sl-trans-elems' );
var transitionprop = {
'transition' : 'all ' + this.options.speed + 'ms ease-in-out'
};
// add the 2 slices and animate them
$movingslide.css( 'z-index', this.slidescount )
.find( 'div.sl-content-wrapper' )
.wrap( $( '' ).css( transitionprop ) )
.parent()
.cond(
dir === 'prev',
function() {
var slice = this;
this.css( slice1style );
settimeout( function() {
slice.css( resetstyle );
}, 50 );
},
function() {
var slice = this;
settimeout( function() {
slice.css( slice1style );
}, 50 );
}
)
.clone()
.appendto( $movingslide )
.cond(
dir === 'prev',
function() {
var slice = this;
this.css( slice2style );
settimeout( function() {
$currentslide.addclass( 'sl-trans-back-elems' );
if( self.support ) {
slice.css( resetstyle ).on( self.transendeventname, function() {
self._onendnavigate( slice, $currentslide, dir );
} );
}
else {
self._onendnavigate( slice, $currentslide, dir );
}
}, 50 );
},
function() {
var slice = this;
settimeout( function() {
$nextslide.addclass( 'sl-trans-elems' );
if( self.support ) {
slice.css( slice2style ).on( self.transendeventname, function() {
self._onendnavigate( slice, $currentslide, dir );
} );
}
else {
self._onendnavigate( slice, $currentslide, dir );
}
}, 50 );
}
)
.find( 'div.sl-content-wrapper' )
.css( cssstyle );
$nextslide.show();
},
_validatevalues : function( config ) {
// ok, so we are restricting the angles and scale values here.
// this is to avoid the slices wrong sides to be shown.
// you can adjust these values as you wish but make sure you also ajust the
// paddings of the slides and also the options.translatefactor value and scale data attrs
if( config.slice1angle > this.options.maxangle || config.slice1angle < -this.options.maxangle ) {
config.slice1angle = this.options.maxangle;
}
if( config.slice2angle > this.options.maxangle || config.slice2angle < -this.options.maxangle ) {
config.slice2angle = this.options.maxangle;
}
if( config.slice1scale > this.options.maxscale || config.slice1scale <= 0 ) {
config.slice1scale = this.options.maxscale;
}
if( config.slice2scale > this.options.maxscale || config.slice2scale <= 0 ) {
config.slice2scale = this.options.maxscale;
}
if( config.orientation !== 'vertical' && config.orientation !== 'horizontal' ) {
config.orientation = 'horizontal'
}
},
_onendnavigate : function( $slice, $oldslide, dir ) {
// reset previous slide's style after next slide is shown
var $slide = $slice.parent(),
removeclasses = 'sl-trans-elems sl-trans-back-elems';
// remove second slide's slice
$slice.remove();
// unwrap..
$slide.css( 'z-index', 1 )
.find( 'div.sl-content-wrapper' )
.unwrap();
// hide previous current slide
$oldslide.hide().removeclass( removeclasses );
$slide.removeclass( removeclasses );
// now we can navigate again..
this.isanimating = false;
this.options.onafterchange( $slide, this.current );
},
_setsize : function() {
// the slider and content wrappers will have the window's width and height
var cssstyle = {
width : this.size.width,
height : this.size.height
};
this.$el.css( cssstyle ).find( 'div.sl-content-wrapper' ).css( cssstyle );
},
_loadevents : function() {
var self = this;
$window.on( 'debouncedresize.slitslider', function( event ) {
// update size values
self._getsize();
// set the sizes again
self._setsize();
} );
if ( this.options.keyboard ) {
$document.on( 'keydown.slitslider', function(e) {
var keycode = e.keycode || e.which,
arrow = {
left: 37,
up: 38,
right: 39,
down: 40
};
switch (keycode) {
case arrow.left :
self._stopslideshow();
self._navigate( 'prev' );
break;
case arrow.right :
self._stopslideshow();
self._navigate( 'next' );
break;
}
} );
}
},
_startslideshow: function() {
var self = this;
this.slideshow = settimeout( function() {
self._navigate( 'next' );
if ( self.options.autoplay ) {
self._startslideshow();
}
}, this.options.interval );
},
_stopslideshow: function() {
if ( this.options.autoplay ) {
cleartimeout( this.slideshow );
this.isplaying = false;
this.options.autoplay = false;
}
},
_destroy : function( callback ) {
this.$el.off( '.slitslider' ).removedata( 'slitslider' );
$window.off( '.slitslider' );
$document.off( '.slitslider' );
this.$slides.each( function( i ) {
var $slide = $( this ),
$content = $slide.find( 'div.sl-content' ).children();
$content.appendto( $slide );
$slide.children( 'div.sl-content-wrapper' ).remove();
} );
this.$slides.unwrap( this.$slidewrapper ).hide();
this.$slides.eq( 0 ).show();
if( callback ) {
callback.call();
}
},
// public methos: adds more slides to the slider
add : function( $slides, callback ) {
this.$slides = this.$slides.add( $slides );
var self = this;
$slides.each( function( i ) {
var $slide = $( this ),
// vertical || horizontal
orientation = $slide.data( 'orientation' );
$slide.hide().addclass( 'sl-slide-' + orientation )
.children()
.wrapall( '' )
.wrapall( '' )
.end()
.appendto( self.$el.find( 'div.sl-slides-wrapper' ) );
} );
this._setsize();
this.slidescount = this.$slides.length;
if ( callback ) {
callback.call( $items );
}
},
// public method: shows next slide
next : function() {
this._stopslideshow();
this._navigate( 'next' );
},
// public method: shows previous slide
previous : function() {
this._stopslideshow();
this._navigate( 'prev' );
},
// public method: goes to a specific slide
jump : function( pos ) {
pos -= 1;
if( pos === this.current || pos >= this.slidescount || pos < 0 ) {
return false;
}
this._stopslideshow();
this._navigate( pos > this.current ? 'next' : 'prev', pos );
},
// public method: starts the slideshow
// any call to next(), previous() or jump() will stop the slideshow
play : function() {
if( !this.isplaying ) {
this.isplaying = true;
this._navigate( 'next' );
this.options.autoplay = true;
this._startslideshow();
}
},
// public method: pauses the slideshow
pause : function() {
if( this.isplaying ) {
this._stopslideshow();
}
},
// public method: check if isanimating is true
isactive : function() {
return this.isanimating;
},
// publicc methos: destroys the slicebox instance
destroy : function( callback ) {
this._destroy( callback );
}
};
var logerror = function( message ) {
if ( window.console ) {
window.console.error( message );
}
};
$.fn.slitslider = function( options ) {
var self = $.data( this, 'slitslider' );
if ( typeof options === 'string' ) {
var args = array.prototype.slice.call( arguments, 1 );
this.each(function() {
if ( !self ) {
logerror( "cannot call methods on slitslider prior to initialization; " +
"attempted to call method '" + options + "'" );
return;
}
if ( !$.isfunction( self[options] ) || options.charat(0) === "_" ) {
logerror( "no such method '" + options + "' for slitslider self" );
return;
}
self[ options ].apply( self, args );
});
}
else {
this.each(function() {
if ( self ) {
self._init();
}
else {
self = $.data( this, 'slitslider', new $.slitslider( options, this ) );
}
});
}
return self;
};
} )( jquery, window );