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a=this;setTimeout(function(){a.refresh()},d?200:0)},_pos:function(a,d){a=this.hScroll?a:0;d=this.vScroll?d:0;if(this.options.useTransform){this.scroller.style[c+"Transform"]=t+a+"px,"+d+"px"+u+" scale("+this.scale+")"}else{a=b(a);d=b(d);this.scroller.style.left=a+"px";this.scroller.style.top=d+"px"}this.x=a;this.y=d;this._scrollbarPos("h");this._scrollbarPos("v")},_scrollbarPos:function(a,d){var e=this,f=a=="h"?e.x:e.y,g;if(!e[a+"Scrollbar"])return;f=e[a+"ScrollbarProp"]*f;if(f<0){if(!e.options.fixedScrollbar){g=e[a+"ScrollbarIndicatorSize"]+b(f*3);if(g<8)g=8;e[a+"ScrollbarIndicator"].style[a=="h"?"width":"height"]=g+"px"}f=0}else 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d=this,e=i?b.touches[0]:b,f,g,h,j,k;if(!d.enabled)return;if(d.options.onBeforeScrollStart)d.options.onBeforeScrollStart.call(d,b);if(d.options.useTransition||d.options.zoom)d._transitionTime(0);d.moved=false;d.animating=false;d.zoomed=false;d.distX=0;d.distY=0;d.absDistX=0;d.absDistY=0;d.dirX=0;d.dirY=0;if(d.options.zoom&&i&&b.touches.length>1){j=a.abs(b.touches[0].pageX-b.touches[1].pageX);k=a.abs(b.touches[0].pageY-b.touches[1].pageY);d.touchesDistStart=a.sqrt(j*j+k*k);d.originX=a.abs(b.touches[0].pageX+b.touches[1].pageX-d.wrapperOffsetLeft*2)/2-d.x;d.originY=a.abs(b.touches[0].pageY+b.touches[1].pageY-d.wrapperOffsetTop*2)/2-d.y;if(d.options.onZoomStart)d.options.onZoomStart.call(d,b)}if(d.options.momentum){if(d.options.useTransform){f=getComputedStyle(d.scroller,null)[c+"Transform"].replace(/[^0-9-.,]/g,"").split(",");g=f[4]*1;h=f[5]*1}else{g=getComputedStyle(d.scroller,null).left.replace(/[^0-9-]/g,"")*1;h=getComputedStyle(d.scroller,null).top.replace(/[^0-9-]/g,"")*1}if(g!=d.x||h!=d.y){if(d.options.useTransition)d._unbind("webkitTransitionEnd");else m(d.aniTime);d.steps=[];d._pos(g,h)}}d.absStartX=d.x;d.absStartY=d.y;d.startX=d.x;d.startY=d.y;d.pointX=e.pageX;d.pointY=e.pageY;d.startTime=b.timeStamp||Date.now();if(d.options.onScrollStart)d.options.onScrollStart.call(d,b);d._bind(p);d._bind(q);d._bind(r)},_move:function(b){var d=this,e=i?b.touches[0]:b,f=e.pageX-d.pointX,g=e.pageY-d.pointY,h=d.x+f,j=d.y+g,k,l,m,n=b.timeStamp||Date.now();if(d.options.onBeforeScrollMove)d.options.onBeforeScrollMove.call(d,b);if(d.options.zoom&&i&&b.touches.length>1){k=a.abs(b.touches[0].pageX-b.touches[1].pageX);l=a.abs(b.touches[0].pageY-b.touches[1].pageY);d.touchesDist=a.sqrt(k*k+l*l);d.zoomed=true;m=1/d.touchesDistStart*d.touchesDist*this.scale;if(m<d.options.zoomMin)m=.5*d.options.zoomMin*Math.pow(2,m/d.options.zoomMin);else if(m>d.options.zoomMax)m=2*d.options.zoomMax*Math.pow(.5,d.options.zoomMax/m);d.lastScale=m/this.scale;h=this.originX-this.originX*d.lastScale+this.x,j=this.originY-this.originY*d.lastScale+this.y;this.scroller.style[c+"Transform"]=t+h+"px,"+j+"px"+u+" scale("+m+")";if(d.options.onZoom)d.options.onZoom.call(d,b);return}d.pointX=e.pageX;d.pointY=e.pageY;if(h>0||h<d.maxScrollX){h=d.options.bounce?d.x+f/2:h>=0||d.maxScrollX>=0?0:d.maxScrollX}if(j>d.minScrollY||j<d.maxScrollY){j=d.options.bounce?d.y+g/2:j>=d.minScrollY||d.maxScrollY>=0?d.minScrollY:d.maxScrollY}if(d.absDistX<6&&d.absDistY<6){d.distX+=f;d.distY+=g;d.absDistX=a.abs(d.distX);d.absDistY=a.abs(d.distY);return}if(d.options.lockDirection){if(d.absDistX>d.absDistY+5){j=d.y;g=0}else 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scale("+e.scale+")";e.zoomed=false;e.refresh();if(e.options.onZoomEnd)e.options.onZoomEnd.call(e,d);return}if(!e.moved){if(i){if(e.doubleTapTimer&&e.options.zoom){clearTimeout(e.doubleTapTimer);e.doubleTapTimer=null;if(e.options.onZoomStart)e.options.onZoomStart.call(e,d);e.zoom(e.pointX,e.pointY,e.scale==1?e.options.doubleTapZoom:1);if(e.options.onZoomEnd){setTimeout(function(){e.options.onZoomEnd.call(e,d)},200)}}else{e.doubleTapTimer=setTimeout(function(){e.doubleTapTimer=null;g=f.target;while(g.nodeType!=1)g=g.parentNode;if(g.tagName!="SELECT"&&g.tagName!="INPUT"&&g.tagName!="TEXTAREA"){h=document.createEvent("MouseEvents");h.initMouseEvent("click",true,true,d.view,1,f.screenX,f.screenY,f.clientX,f.clientY,d.ctrlKey,d.altKey,d.shiftKey,d.metaKey,0,null);h._fake=true;g.dispatchEvent(h)}},e.options.zoom?250:0)}}e._resetPos(200);if(e.options.onTouchEnd)e.options.onTouchEnd.call(e,d);return}if(l<300&&e.options.momentum){j=m?e._momentum(m-e.startX,l,-e.x,e.scrollerW-e.wrapperW+e.x,e.options.bounce?e.wrapperW:0):j;k=n?e._momentum(n-e.startY,l,-e.y,e.maxScrollY<0?e.scrollerH-e.wrapperH+e.y-e.minScrollY:0,e.options.bounce?e.wrapperH:0):k;m=e.x+j.dist;n=e.y+k.dist;if(e.x>0&&m>0||e.x<e.maxScrollX&&m<e.maxScrollX)j={dist:0,time:0};if(e.y>e.minScrollY&&n>e.minScrollY||e.y<e.maxScrollY&&n<e.maxScrollY)k={dist:0,time:0}}if(j.dist||k.dist){v=a.max(a.max(j.time,k.time),10);if(e.options.snap){o=m-e.absStartX;s=n-e.absStartY;if(a.abs(o)<e.options.snapThreshold&&a.abs(s)<e.options.snapThreshold){e.scrollTo(e.absStartX,e.absStartY,200)}else{w=e._snap(m,n);m=w.x;n=w.y;v=a.max(w.time,v)}}e.scrollTo(b(m),b(n),v);if(e.options.onTouchEnd)e.options.onTouchEnd.call(e,d);return}if(e.options.snap){o=m-e.absStartX;s=n-e.absStartY;if(a.abs(o)<e.options.snapThreshold&&a.abs(s)<e.options.snapThreshold)e.scrollTo(e.absStartX,e.absStartY,200);else{w=e._snap(e.x,e.y);if(w.x!=e.x||w.y!=e.y)e.scrollTo(w.x,w.y,w.time)}if(e.options.onTouchEnd)e.options.onTouchEnd.call(e,d);return}e._resetPos(200);if(e.options.onTouchEnd)e.options.onTouchEnd.call(e,d)},_resetPos:function(a){var b=this,d=b.x>=0?0:b.x<b.maxScrollX?b.maxScrollX:b.x,e=b.y>=b.minScrollY||b.maxScrollY>0?b.minScrollY:b.y<b.maxScrollY?b.maxScrollY:b.y;if(d==b.x&&e==b.y){if(b.moved){b.moved=false;if(b.options.onScrollEnd)b.options.onScrollEnd.call(b)}if(b.hScrollbar&&b.options.hideScrollbar){if(c=="webkit")b.hScrollbarWrapper.style[c+"TransitionDelay"]="300ms";b.hScrollbarWrapper.style.opacity="0"}if(b.vScrollbar&&b.options.hideScrollbar){if(c=="webkit")b.vScrollbarWrapper.style[c+"TransitionDelay"]="300ms";b.vScrollbarWrapper.style.opacity="0"}return}b.scrollTo(d,e,a||0)},_wheel:function(a){var b=this,c,d,e,f,g;if("wheelDeltaX"in a){c=a.wheelDeltaX/12;d=a.wheelDeltaY/12}else if("detail"in a){c=d=-a.detail*3}else{c=d=-a.wheelDelta}if(b.options.wheelAction=="zoom"){g=b.scale*Math.pow(2,1/3*(d?d/Math.abs(d):0));if(g<b.options.zoomMin)g=b.options.zoomMin;if(g>b.options.zoomMax)g=b.options.zoomMax;if(g!=b.scale){if(!b.wheelZoomCount&&b.options.onZoomStart)b.options.onZoomStart.call(b,a);b.wheelZoomCount++;b.zoom(a.pageX,a.pageY,g,400);setTimeout(function(){b.wheelZoomCount--;if(!b.wheelZoomCount&&b.options.onZoomEnd)b.options.onZoomEnd.call(b,a)},400)}return}e=b.x+c;f=b.y+d;if(e>0)e=0;else if(e<b.maxScrollX)e=b.maxScrollX;if(f>b.minScrollY)f=b.minScrollY;else if(f<b.maxScrollY)f=b.maxScrollY;b.scrollTo(e,f,0)},_mouseout:function(a){a.preventDefault()},_transitionEnd:function(a){var b=this;if(a.target!=b.scroller)return;b._unbind("webkitTransitionEnd");b._startAni()},_startAni:function(){var b=this,c=b.x,d=b.y,e=Date.now(),f,g,h;if(b.animating)return;if(!b.steps.length){b._resetPos(400);return}f=b.steps.shift();if(f.x==c&&f.y==d)f.time=0;b.animating=true;b.moved=true;if(b.options.useTransition){b._transitionTime(f.time);b._pos(f.x,f.y);b.animating=false;if(f.time)b._bind("webkitTransitionEnd");else b._resetPos(0);return}h=function(){var i=Date.now(),j,k;if(i>=e+f.time){b._pos(f.x,f.y);b.animating=false;if(b.options.onAnimationEnd)b.options.onAnimationEnd.call(b);b._startAni();return}i=(i-e)/f.time-1;g=a.sqrt(1-i*i);j=(f.x-c)*g+c;k=(f.y-d)*g+d;b._pos(j,k);if(b.animating)b.aniTime=l(h)};h()},_transitionTime:function(a){a+="ms";this.scroller.style[c+"TransitionDuration"]=a;if(this.hScrollbar)this.hScrollbarIndicator.style[c+"TransitionDuration"]=a;if(this.vScrollbar)this.vScrollbarIndicator.style[c+"TransitionDuration"]=a},_momentum:function(c,d,e,f,g){var h=6e-4,i=a.abs(c)/d,j=i*i/(2*h),k=0,l=0;if(c>0&&j>e){l=g/(6/(j/i*h));e=e+l;i=i*e/j;j=e}else if(c<0&&j>f){l=g/(6/(j/i*h));f=f+l;i=i*f/j;j=f}j=j*(c<0?-1:1);k=i/h;return{dist:j,time:b(k)}},_offset:function(a){var b=-a.offsetLeft,c=-a.offsetTop;while(a=a.offsetParent){b-=a.offsetLeft;c-=a.offsetTop}if(a!=this.wrapper){b*=this.scale;c*=this.scale}return{left:b,top:c}},_snap:function(c,d){var e=this,f,g,h,i,j,k;h=e.pagesX.length-1;for(f=0,g=e.pagesX.length;f<g;f++){if(c>=e.pagesX[f]){h=f;break}}if(h==e.currPageX&&h>0&&e.dirX<0)h--;c=e.pagesX[h];j=a.abs(c-e.pagesX[e.currPageX]);j=j?a.abs(e.x-c)/j*500:0;e.currPageX=h;h=e.pagesY.length-1;for(f=0;f<h;f++){if(d>=e.pagesY[f]){h=f;break}}if(h==e.currPageY&&h>0&&e.dirY<0)h--;d=e.pagesY[h];k=a.abs(d-e.pagesY[e.currPageY]);k=k?a.abs(e.y-d)/k*500:0;e.currPageY=h;i=b(a.max(j,k))||200;return{x:c,y:d,time:i}},_bind:function(a,b,c){(b||this.scroller).addEventListener(a,this,!!c)},_unbind:function(a,b,c){(b||this.scroller).removeEventListener(a,this,!!c)},destroy:function(){var a=this;a.scroller.style[c+"Transform"]="";a.hScrollbar=false;a.vScrollbar=false;a._scrollbar("h");a._scrollbar("v");a._unbind(n,window);a._unbind(o);a._unbind(p);a._unbind(q);a._unbind(r);if(a.options.hasTouch){a._unbind("mouseout",a.wrapper);a._unbind(s)}if(a.options.useTransition)a._unbind("webkitTransitionEnd");if(a.options.checkDOMChanges)clearInterval(a.checkDOMTime);if(a.options.onDestroy)a.options.onDestroy.call(a)},refresh:function(){var a=this,d,e,f,g,h=0,i=0;if(a.scale<a.options.zoomMin)a.scale=a.options.zoomMin;a.wrapperW=a.wrapper.clientWidth||1;a.wrapperH=a.wrapper.clientHeight||1;a.minScrollY=-a.options.topOffset||0;a.scrollerW=b(a.scroller.offsetWidth*a.scale);a.scrollerH=b((a.scroller.offsetHeight+a.minScrollY)*a.scale);a.maxScrollX=a.wrapperW-a.scrollerW;a.maxScrollY=a.wrapperH-a.scrollerH+a.minScrollY;a.dirX=0;a.dirY=0;if(a.options.onRefresh)a.options.onRefresh.call(a);a.hScroll=a.options.hScroll&&a.maxScrollX<0;a.vScroll=a.options.vScroll&&(!a.options.bounceLock&&!a.hScroll||a.scrollerH>a.wrapperH);a.hScrollbar=a.hScroll&&a.options.hScrollbar;a.vScrollbar=a.vScroll&&a.options.vScrollbar&&a.scrollerH>a.wrapperH;d=a._offset(a.wrapper);a.wrapperOffsetLeft=-d.left;a.wrapperOffsetTop=-d.top;if(typeof a.options.snap=="string"){a.pagesX=[];a.pagesY=[];g=a.scroller.querySelectorAll(a.options.snap);for(e=0,f=g.length;e<f;e++){h=a._offset(g[e]);h.left+=a.wrapperOffsetLeft;h.top+=a.wrapperOffsetTop;a.pagesX[e]=h.left<a.maxScrollX?a.maxScrollX:h.left*a.scale;a.pagesY[e]=h.top<a.maxScrollY?a.maxScrollY:h.top*a.scale}}else if(a.options.snap){a.pagesX=[];while(h>=a.maxScrollX){a.pagesX[i]=h;h=h-a.wrapperW;i++}if(a.maxScrollX%a.wrapperW)a.pagesX[a.pagesX.length]=a.maxScrollX-a.pagesX[a.pagesX.length-1]+a.pagesX[a.pagesX.length-1];h=0;i=0;a.pagesY=[];while(h>=a.maxScrollY){a.pagesY[i]=h;h=h-a.wrapperH;i++}if(a.maxScrollY%a.wrapperH)a.pagesY[a.pagesY.length]=a.maxScrollY-a.pagesY[a.pagesY.length-1]+a.pagesY[a.pagesY.length-1]}a._scrollbar("h");a._scrollbar("v");if(!a.zoomed){a.scroller.style[c+"TransitionDuration"]="0";a._resetPos(200)}},scrollTo:function(a,b,c,d){var e=this,f=a,g,h;e.stop();if(!f.length)f=[{x:a,y:b,time:c,relative:d}];for(g=0,h=f.length;g<h;g++){if(f[g].relative){f[g].x=e.x-f[g].x;f[g].y=e.y-f[g].y}e.steps.push({x:f[g].x,y:f[g].y,time:f[g].time||0})}e._startAni()},scrollToElement:function(b,c){var d=this,e;b=b.nodeType?b:d.scroller.querySelector(b);if(!b)return;e=d._offset(b);e.left+=d.wrapperOffsetLeft;e.top+=d.wrapperOffsetTop;e.left=e.left>0?0:e.left<d.maxScrollX?d.maxScrollX:e.left;e.top=e.top>d.minScrollY?d.minScrollY:e.top<d.maxScrollY?d.maxScrollY:e.top;c=c===undefined?a.max(a.abs(e.left)*2,a.abs(e.top)*2):c;d.scrollTo(e.left,e.top,c)},scrollToPage:function(a,b,c){var d=this,e,f;if(d.options.onScrollStart)d.options.onScrollStart.call(d);if(d.options.snap){a=a=="next"?d.currPageX+1:a=="prev"?d.currPageX-1:a;b=b=="next"?d.currPageY+1:b=="prev"?d.currPageY-1:b;a=a<0?0:a>d.pagesX.length-1?d.pagesX.length-1:a;b=b<0?0:b>d.pagesY.length-1?d.pagesY.length-1:b;d.currPageX=a;d.currPageY=b;e=d.pagesX[a];f=d.pagesY[b]}else{e=-d.wrapperW*a;f=-d.wrapperH*b;if(e<d.maxScrollX)e=d.maxScrollX;if(f<d.maxScrollY)f=d.maxScrollY}d.scrollTo(e,f,c||400)},disable:function(){this.stop();this._resetPos(0);this.enabled=false;this._unbind(p);this._unbind(q);this._unbind(r)},enable:function(){this.enabled=true},stop:function(){if(this.options.useTransition)this._unbind("webkitTransitionEnd");else m(this.aniTime);this.steps=[];this.moved=false;this.animating=false},zoom:function(a,b,d,e){var f=this,g=d/f.scale;if(!f.options.useTransform)return;f.zoomed=true;e=e===undefined?200:e;a=a-f.wrapperOffsetLeft-f.x;b=b-f.wrapperOffsetTop-f.y;f.x=a-a*g+f.x;f.y=b-b*g+f.y;f.scale=d;f.refresh();f.x=f.x>0?0:f.x<f.maxScrollX?f.maxScrollX:f.x;f.y=f.y>f.minScrollY?f.minScrollY:f.y<f.maxScrollY?f.maxScrollY:f.y;f.scroller.style[c+"TransitionDuration"]=e+"ms";f.scroller.style[c+"Transform"]=t+f.x+"px,"+f.y+"px"+u+" scale("+d+")";f.zoomed=false},isReady:function(){return!this.moved&&!this.zoomed&&!this.animating}};if(typeof exports!=="undefined")exports.iScroll=v;else window.iScroll=v})()