/*! jquery.kinetic - v2.0.4 - 2014-10-07 http://the-taylors.org/jquery.kinetic * Copyright (c) 2014 Dave Taylor; Licensed MIT */ !function(a){"use strict";var b="kinetic-active";window.requestAnimationFrame||(window.requestAnimationFrame=function(){return window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1e3/60)}}()),a.support=a.support||{},a.extend(a.support,{touch:"ontouchend"in document});var c=function(){return!1},d=function(b,c){return this.settings=c,this.el=b,this.$el=a(b),this._initElements(),this};d.DATA_KEY="kinetic",d.DEFAULTS={cursor:"move",decelerate:!0,triggerHardware:!1,y:!0,x:!0,preventTextSelection:!0,slowdown:.9,maxvelocity:40,throttleFPS:60,movingClass:{up:"kinetic-moving-up",down:"kinetic-moving-down",left:"kinetic-moving-left",right:"kinetic-moving-right"},deceleratingClass:{up:"kinetic-decelerating-up",down:"kinetic-decelerating-down",left:"kinetic-decelerating-left",right:"kinetic-decelerating-right"}},d.prototype.start=function(b){this.settings=a.extend(this.settings,b),this.velocity=b.velocity||this.velocity,this.velocityY=b.velocityY||this.velocityY,this.settings.decelerate=!1,this._move()},d.prototype.end=function(){this.settings.decelerate=!0},d.prototype.stop=function(){this.velocity=0,this.velocityY=0,this.settings.decelerate=!0,a.isFunction(this.settings.stopped)&&this.settings.stopped.call(this)},d.prototype.detach=function(){this._detachListeners(),this.$el.removeClass(b).css("cursor","")},d.prototype.attach=function(){this.$el.hasClass(b)||(this._attachListeners(this.$el),this.$el.addClass(b).css("cursor",this.settings.cursor))},d.prototype._initElements=function(){this.$el.addClass(b),a.extend(this,{xpos:null,prevXPos:!1,ypos:null,prevYPos:!1,mouseDown:!1,throttleTimeout:1e3/this.settings.throttleFPS,lastMove:null,elementFocused:null}),this.velocity=0,this.velocityY=0,a(document).mouseup(a.proxy(this._resetMouse,this)).click(a.proxy(this._resetMouse,this)),this._initEvents(),this.$el.css("cursor",this.settings.cursor),this.settings.triggerHardware&&this.$el.css({"-webkit-transform":"translate3d(0,0,0)","-webkit-perspective":"1000","-webkit-backface-visibility":"hidden"})},d.prototype._initEvents=function(){var b=this;this.settings.events={touchStart:function(a){var c;b._useTarget(a.target,a)&&(c=a.originalEvent.touches[0],b._start(c.clientX,c.clientY),a.stopPropagation())},touchMove:function(a){var c;b.mouseDown&&(c=a.originalEvent.touches[0],b._inputmove(c.clientX,c.clientY),a.preventDefault&&a.preventDefault())},inputDown:function(a){b._useTarget(a.target,a)&&(b._start(a.clientX,a.clientY),b.elementFocused=a.target,"IMG"===a.target.nodeName&&a.preventDefault(),a.stopPropagation())},inputEnd:function(a){b._useTarget(a.target,a)&&(b._end(),b.elementFocused=null,a.preventDefault&&a.preventDefault())},inputMove:function(a){b.mouseDown&&(b._inputmove(a.clientX,a.clientY),a.preventDefault&&a.preventDefault())},scroll:function(c){a.isFunction(b.settings.moved)&&b.settings.moved.call(b,b.settings),c.preventDefault&&c.preventDefault()},inputClick:function(a){return Math.abs(b.velocity)>0?(a.preventDefault(),!1):void 0},dragStart:function(a){return b._useTarget(a.target,a)&&b.elementFocused?!1:void 0},selectStart:function(a){return b.settings.preventTextSelection?!1:void 0}},this._attachListeners(this.$el,this.settings)},d.prototype._inputmove=function(b,c){{var d=this.$el;this.el}if((!this.lastMove||new Date>new Date(this.lastMove.getTime()+this.throttleTimeout))&&(this.lastMove=new Date,this.mouseDown&&(this.xpos||this.ypos))){this.elementFocused&&(a(this.elementFocused).blur(),this.elementFocused=null,d.focus()),this.settings.decelerate=!1,this.velocity=this.velocityY=0;var e=this.scrollLeft(),f=this.scrollTop(),g=b-this.xpos,h=c-this.ypos;this.scrollLeft(this.settings.x?e-g:e),this.scrollTop(this.settings.y?f-h:f),this.prevXPos=this.xpos,this.prevYPos=this.ypos,this.xpos=b,this.ypos=c,this._calculateVelocities(),this._setMoveClasses(this.settings.movingClass),a.isFunction(this.settings.moved)&&this.settings.moved.call(d,this.settings)}},d.prototype._calculateVelocities=function(){this.velocity=this._capVelocity(this.prevXPos-this.xpos,this.settings.maxvelocity),this.velocityY=this._capVelocity(this.prevYPos-this.ypos,this.settings.maxvelocity)},d.prototype._end=function(){this.xpos&&this.prevXPos&&this.settings.decelerate===!1&&(this.settings.decelerate=!0,this._calculateVelocities(),this.xpos=this.prevXPos=this.mouseDown=!1,this._move())},d.prototype._useTarget=function(b,c){return a.isFunction(this.settings.filterTarget)?this.settings.filterTarget.call(this,b,c)!==!1:!0},d.prototype._start=function(a,b){this.mouseDown=!0,this.velocity=this.prevXPos=0,this.velocityY=this.prevYPos=0,this.xpos=a,this.ypos=b},d.prototype._resetMouse=function(){this.xpos=!1,this.ypos=!1,this.mouseDown=!1},d.prototype._decelerateVelocity=function(a,b){return 0===Math.floor(Math.abs(a))?0:a*b},d.prototype._capVelocity=function(a,b){var c=a;return a>0?a>b&&(c=b):0-b>a&&(c=0-b),c},d.prototype._setMoveClasses=function(a){var b=this.settings,c=this.$el;c.removeClass(b.movingClass.up).removeClass(b.movingClass.down).removeClass(b.movingClass.left).removeClass(b.movingClass.right).removeClass(b.deceleratingClass.up).removeClass(b.deceleratingClass.down).removeClass(b.deceleratingClass.left).removeClass(b.deceleratingClass.right),this.velocity>0&&c.addClass(a.right),this.velocity<0&&c.addClass(a.left),this.velocityY>0&&c.addClass(a.down),this.velocityY<0&&c.addClass(a.up)},d.prototype._move=function(){var b=(this.$el,this.el),c=this,d=c.settings;d.x&&b.scrollWidth>0?(this.scrollLeft(this.scrollLeft()+this.velocity),Math.abs(this.velocity)>0&&(this.velocity=d.decelerate?c._decelerateVelocity(this.velocity,d.slowdown):this.velocity)):this.velocity=0,d.y&&b.scrollHeight>0?(this.scrollTop(this.scrollTop()+this.velocityY),Math.abs(this.velocityY)>0&&(this.velocityY=d.decelerate?c._decelerateVelocity(this.velocityY,d.slowdown):this.velocityY)):this.velocityY=0,c._setMoveClasses(d.deceleratingClass),a.isFunction(d.moved)&&d.moved.call(this,d),Math.abs(this.velocity)>0||Math.abs(this.velocityY)>0?this.moving||(this.moving=!0,window.requestAnimationFrame(function(){c.moving=!1,c._move()})):c.stop()},d.prototype._getScroller=function(){var b=this.$el;return(this.$el.is("body")||this.$el.is("html"))&&(b=a(window)),b},d.prototype.scrollLeft=function(a){var b=this._getScroller();return"number"!=typeof a?b.scrollLeft():(b.scrollLeft(a),void(this.settings.scrollLeft=a))},d.prototype.scrollTop=function(a){var b=this._getScroller();return"number"!=typeof a?b.scrollTop():(b.scrollTop(a),void(this.settings.scrollTop=a))},d.prototype._attachListeners=function(){var b=this.$el,d=this.settings;a.support.touch&&is_TouchDevice?b.bind("touchstart",d.events.touchStart).bind("touchend",d.events.inputEnd).bind("touchmove",d.events.touchMove):b.mousedown(d.events.inputDown).mouseup(d.events.inputEnd).mousemove(d.events.inputMove),b.click(d.events.inputClick).scroll(d.events.scroll).bind("selectstart",d.events.selectStart).bind("dragstart",d.events.dragStart)},d.prototype._detachListeners=function(){var b=this.$el,d=this.settings;a.support.touch?b.unbind("touchstart",d.events.touchStart).unbind("touchend",d.events.inputEnd).unbind("touchmove",d.events.touchMove):b.unbind("mousedown",d.events.inputDown).unbind("mouseup",d.events.inputEnd).unbind("mousemove",d.events.inputMove),b.unbind("click",d.events.inputClick).unbind("scroll",d.events.scroll).unbind("selectstart",d.events.selectStart).unbind("dragstart",d.events.dragStart)},a.Kinetic=d,a.fn.kinetic=function(b,c){return this.each(function(){var e=a(this),f=e.data(d.DATA_KEY),g=a.extend({},d.DEFAULTS,e.data(),"object"==typeof b&&b);f||e.data(d.DATA_KEY,f=new d(this,g)),"string"==typeof b&&f[b](c)})}}(window.jQuery||window.Zepto);