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r=this.width(),i=this.height();Math.round(Math.sqrt(Math.pow(r,2)+Math.pow(i,2)));e.parent=a,e.fparent=e.opts.turn?M(e.opts.turn).fparent:t("#turn-fwrappers"),e.fparent||(e.fparent=F._createFoldParent.call(this)),this.css({position:"absolute",top:0,left:0,bottom:"auto",right:"auto"}),e.wrapper=t("<div/>",m(0,0,this.css("z-index"))).appendTo(a).prepend(this),e.fwrapper=t("<div/>",m(a.offset().top,a.offset().left)).hide().appendTo(e.fparent),e.fpage=t("<div/>",{css:{cursor:"default"}}).appendTo(t("<div/>",m(0,0,0,"visible")).appendTo(e.fwrapper)),e.opts.frontGradient&&(e.ashadow=t("<div/>",m(0,0,1)).appendTo(e.fpage)),F.setData.call(this,e),F.resize.call(this,!0)}},_fold:function(t){var e,a,s,n,o,p,l=this,h=0,g=0,d=y(0,0),f=y(0,0),c=y(0,0),u=this.width(),v=this.height(),m=F._foldingPage.call(this),w=(Math.tan(g),this.data().f),_=w.opts.acceleration,M=w.wrapper.height(),O=F._c.call(this,t.corner),W="t"==t.corner.substr(0,1),z="l"==t.corner.substr(1,1),D=function(){var 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p=H<u?H/u:1,w.opts.frontGradient&&(n=o>100?(o-100)/o:0,a=y(o*Math.sin(i-g)/v*100,o*Math.cos(i-g)/u*100),W&&(a.y=100-a.y),z&&(a.x=100-a.x)),F._backGradient.call(l)&&(s=y(o*Math.sin(g)/u*100,o*Math.cos(g)/v*100),z||(s.x=100-s.x),W||(s.y=100-s.y)),c.x=Math.round(c.x),c.y=Math.round(c.y),!0},k=function(t,e,r,i){var o=["0","auto"],h=(u-M)*r[0]/100,g=(v-M)*r[1]/100,c={left:o[e[0]],top:o[e[1]],right:o[e[2]],bottom:o[e[3]]},m=90!=i&&-90!=i?z?-1:1:0;r=r[0]+"% 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s.fwrapper.is(":visible")||(s.fparent.show().data().flips++,F._moveFoldingPage.call(this,!0),s.fwrapper.show(),s.bshadow&&s.bshadow.show()),!0}return!1},hide:function(){var t=this.data().f,e=F._foldingPage.call(this);return 0===--t.fparent.data().flips&&t.fparent.hide(),this.css({left:0,top:0,right:"auto",bottom:"auto"}).transform("","0% 100%"),t.wrapper.transform("","0% 100%"),t.fwrapper.hide(),t.bshadow&&t.bshadow.hide(),e.transform("","0% 0%"),this},hideFoldedPage:function(t){var e=this.data().f;if(e.point){var a=this,r=e.point,i=function(){e.point=null,a.flip("hide"),a.trigger("end",[!1])};if(t){var s=F._c.call(this,r.corner),n="t"==r.corner.substr(0,1)?Math.min(0,r.y-s.y)/2:Math.max(0,r.y-s.y)/2,o=y(r.x,r.y+n),p=y(s.x,s.y-n);this.animatef({from:0,to:1,frame:function(t){var e=w(r,o,p,s,t);r.x=e.x,r.y=e.y,F._fold.call(a,r)},complete:i,duration:800,hiding:!0})}else this.animatef(!1),i()}},turnPage:function(t){var e=this,a=this.data().f;t={corner:a.corner?a.corner.corner:t||F._cAllowed.call(this)[0]};var r=a.point||F._c.call(this,t.corner,a.opts.turn?a.opts.turn.data().opts.elevation:0),i=F._c2.call(this,t.corner);this.trigger("flip").animatef({from:0,to:1,frame:function(a){var s=w(r,r,i,i,a);t.x=s.x,t.y=s.y,F._showFoldedPage.call(e,t)},complete:function(){e.trigger("end",[!0])},duration:a.opts.duration,turning:!0}),a.corner=null},moving:function(){return"effect"in this.data()},isTurning:function(){return this.flip("moving")&&this.data().effect.turning},_eventStart:function(t){var e=this.data().f;if(!e.disabled&&!this.flip("isTurning")){if(e.corner=F._cornerActivated.call(this,t),e.corner&&F._foldingPage.call(this,e.corner))return F._moveFoldingPage.call(this,!0),this.trigger("pressed",[e.point]),!1;e.corner=null}},_eventMove:function(t){var e=this.data().f;if(!e.disabled)if(t=s?t.originalEvent.touches:[t],e.corner){var 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e&&(a&&(r[a+"transform-origin"]=e),r["transform-origin"]=e),a&&(r[a+"transform"]=t),r.transform=t,this.css(r)},animatef:function(t){var e=this.data();if(e.effect&&l(e.effect.handle),t){t.to.length||(t.to=[t.to]),t.from.length||(t.from=[t.from]),t.easing||(t.easing=function(t,e,a,r,i){return r*Math.sqrt(1-(e=e/i-1)*e)+a});var a,r=[],i=t.to.length,s=this,n=o(),h=function(a){if(s.data().effect===t){a=a||o();var l,g=Math.min(t.duration,Math.max(0,a-n)),d=[];for(l=0;l<i;l++)d.push(t.easing(1,g,t.from[l],r[l],t.duration));t.frame(1==i?d[0]:d),g==t.duration?(delete e.effect,s.data(e),t.complete&&t.complete()):(e.effect.handle=p(h),s.data(e))}};for(a=0;a<i;a++)r.push(t.to[a]-t.from[a]);e.effect=t,this.data(e),h(n)}else e.effect&&e.effect.handle&&l(e.effect.handle),delete e.effect}}),t.isTouch=s}(jQuery);