zhishifufei_php/public/wap/first/zsff/js/iScroll.js

(function(){var m=Math,mround=function(r){return r>>0;},vendor=(/webkit/i).test(navigator.appVersion)?'webkit':(/firefox/i).test(navigator.userAgent)?'Moz':'opera'in window?'O':'',isAndroid=(/android/gi).test(navigator.appVersion),isIDevice=(/iphone|ipad/gi).test(navigator.appVersion),isPlaybook=(/playbook/gi).test(navigator.appVersion),isTouchPad=(/hp-tablet/gi).test(navigator.appVersion),has3d='WebKitCSSMatrix'in window&&'m11'in new WebKitCSSMatrix(),hasTouch='ontouchstart'in window&&!isTouchPad,hasTransform=vendor+'Transform'in document.documentElement.style,hasTransitionEnd=isIDevice||isPlaybook,nextFrame=(function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(callback){return setTimeout(callback,1);}})(),cancelFrame=(function(){return window.cancelRequestAnimationFrame||window.cancelAnimationFrame||window.webkitCancelRequestAnimationFrame||window.mozCancelRequestAnimationFrame||window.oCancelRequestAnimationFrame||window.msCancelRequestAnimationFrame||clearTimeout})(),RESIZE_EV='onorientationchange'in window?'orientationchange':'resize',START_EV=hasTouch?'touchstart':'mousedown',MOVE_EV=hasTouch?'touchmove':'mousemove',END_EV=hasTouch?'touchend':'mouseup',CANCEL_EV=hasTouch?'touchcancel':'mouseup',WHEEL_EV=vendor=='Moz'?'DOMMouseScroll':'mousewheel',trnOpen='translate'+(has3d?'3d(':'('),trnClose=has3d?',0)':')',iScroll=function(el,options){var that=this,doc=document,i;that.wrapper=typeof el=='object'?el:doc.getElementById(el);that.wrapper.style.overflow='hidden';that.scroller=that.wrapper.children[0];that.options={hScroll:true,vScroll:true,x:0,y:0,bounce:true,bounceLock:false,momentum:true,lockDirection:true,useTransform:true,useTransition:false,topOffset:0,checkDOMChanges:false,hScrollbar:true,vScrollbar:true,fixedScrollbar:isAndroid,hideScrollbar:isIDevice,fadeScrollbar:isIDevice&&has3d,scrollbarClass:'',zoom:false,zoomMin:1,zoomMax:4,doubleTapZoom:2,wheelAction:'scroll',snap:false,snapThreshold:1,onRefresh:null,onBeforeScrollStart:function(e){e.preventDefault();},onScrollStart:null,onBeforeScrollMove:null,onScrollMove:null,onBeforeScrollEnd:null,onScrollEnd:null,onTouchEnd:null,onDestroy:null,onZoomStart:null,onZoom:null,onZoomEnd:null};for(i in options)that.options[i]=options[i];that.x=that.options.x;that.y=that.options.y;that.options.useTransform=hasTransform?that.options.useTransform:false;that.options.hScrollbar=that.options.hScroll&&that.options.hScrollbar;that.options.vScrollbar=that.options.vScroll&&that.options.vScrollbar;that.options.zoom=that.options.useTransform&&that.options.zoom;that.options.useTransition=hasTransitionEnd&&that.options.useTransition;if(that.options.zoom&&isAndroid){trnOpen='translate(';trnClose=')';}
that.scroller.style[vendor+'TransitionProperty']=that.options.useTransform?'-'+vendor.toLowerCase()+'-transform':'top left';that.scroller.style[vendor+'TransitionDuration']='0';that.scroller.style[vendor+'TransformOrigin']='0 0';if(that.options.useTransition)that.scroller.style[vendor+'TransitionTimingFunction']='cubic-bezier(0.33,0.66,0.66,1)';if(that.options.useTransform)that.scroller.style[vendor+'Transform']=trnOpen+that.x+'px,'+that.y+'px'+trnClose;else that.scroller.style.cssText+=';position:absolute;top:'+that.y+'px;left:'+that.x+'px';if(that.options.useTransition)that.options.fixedScrollbar=true;that.refresh();that._bind(RESIZE_EV,window);that._bind(START_EV);if(!hasTouch){that._bind('mouseout',that.wrapper);if(that.options.wheelAction!='none')
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return;}
if(!that[dir+'ScrollbarWrapper']){bar=doc.createElement('div');if(that.options.scrollbarClass)bar.className=that.options.scrollbarClass+dir.toUpperCase();else bar.style.cssText='position:absolute;z-index:100;'+(dir=='h'?'height:7px;bottom:1px;left:2px;right:'+(that.vScrollbar?'7':'2')+'px':'width:7px;bottom:'+(that.hScrollbar?'7':'2')+'px;top:2px;right:1px');bar.style.cssText+=';pointer-events:none;-'+vendor+'-transition-property:opacity;-'+vendor+'-transition-duration:'+(that.options.fadeScrollbar?'350ms':'0')+';overflow:hidden;opacity:'+(that.options.hideScrollbar?'0':'1');that.wrapper.appendChild(bar);that[dir+'ScrollbarWrapper']=bar;bar=doc.createElement('div');if(!that.options.scrollbarClass){bar.style.cssText='position:absolute;z-index:100;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);-'+vendor+'-background-clip:padding-box;-'+vendor+'-box-sizing:border-box;'+(dir=='h'?'height:100%':'width:100%')+';-'+vendor+'-border-radius:3px;border-radius:3px';}
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if(dir=='h'){that.hScrollbarSize=that.hScrollbarWrapper.clientWidth;that.hScrollbarIndicatorSize=m.max(mround(that.hScrollbarSize*that.hScrollbarSize/that.scrollerW),8);that.hScrollbarIndicator.style.width=that.hScrollbarIndicatorSize+'px';that.hScrollbarMaxScroll=that.hScrollbarSize-that.hScrollbarIndicatorSize;that.hScrollbarProp=that.hScrollbarMaxScroll/that.maxScrollX;}else{that.vScrollbarSize=that.vScrollbarWrapper.clientHeight;that.vScrollbarIndicatorSize=m.max(mround(that.vScrollbarSize*that.vScrollbarSize/that.scrollerH),8);that.vScrollbarIndicator.style.height=that.vScrollbarIndicatorSize+'px';that.vScrollbarMaxScroll=that.vScrollbarSize-that.vScrollbarIndicatorSize;that.vScrollbarProp=that.vScrollbarMaxScroll/that.maxScrollY;}
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this.x=x;this.y=y;this._scrollbarPos('h');this._scrollbarPos('v');},_scrollbarPos:function(dir,hidden){var that=this,pos=dir=='h'?that.x:that.y,size;if(!that[dir+'Scrollbar'])return;pos=that[dir+'ScrollbarProp']*pos;if(pos<0){if(!that.options.fixedScrollbar){size=that[dir+'ScrollbarIndicatorSize']+mround(pos*3);if(size<8)size=8;that[dir+'ScrollbarIndicator'].style[dir=='h'?'width':'height']=size+'px';}
pos=0;}else if(pos>that[dir+'ScrollbarMaxScroll']){if(!that.options.fixedScrollbar){size=that[dir+'ScrollbarIndicatorSize']-mround((pos-that[dir+'ScrollbarMaxScroll'])*3);if(size<8)size=8;that[dir+'ScrollbarIndicator'].style[dir=='h'?'width':'height']=size+'px';pos=that[dir+'ScrollbarMaxScroll']+(that[dir+'ScrollbarIndicatorSize']-size);}else{pos=that[dir+'ScrollbarMaxScroll'];}}
that[dir+'ScrollbarWrapper'].style[vendor+'TransitionDelay']='0';that[dir+'ScrollbarWrapper'].style.opacity=hidden&&that.options.hideScrollbar?'0':'1';that[dir+'ScrollbarIndicator'].style[vendor+'Transform']=trnOpen+(dir=='h'?pos+'px,0':'0,'+pos+'px')+trnClose;},_start:function(e){var that=this,point=hasTouch?e.touches[0]:e,matrix,x,y,c1,c2;if(!that.enabled)return;if(that.options.onBeforeScrollStart)that.options.onBeforeScrollStart.call(that,e);if(that.options.useTransition||that.options.zoom)that._transitionTime(0);that.moved=false;that.animating=false;that.zoomed=false;that.distX=0;that.distY=0;that.absDistX=0;that.absDistY=0;that.dirX=0;that.dirY=0;if(that.options.zoom&&hasTouch&&e.touches.length>1){c1=m.abs(e.touches[0].pageX-e.touches[1].pageX);c2=m.abs(e.touches[0].pageY-e.touches[1].pageY);that.touchesDistStart=m.sqrt(c1*c1+c2*c2);that.originX=m.abs(e.touches[0].pageX+e.touches[1].pageX-that.wrapperOffsetLeft*2)/2-that.x;that.originY=m.abs(e.touches[0].pageY+e.touches[1].pageY-that.wrapperOffsetTop*2)/2-that.y;if(that.options.onZoomStart)that.options.onZoomStart.call(that,e);}
if(that.options.momentum){if(that.options.useTransform){matrix=getComputedStyle(that.scroller,null)[vendor+'Transform'].replace(/[^0-9-.,]/g,'').split(',');x=matrix[4]*1;y=matrix[5]*1;}else{x=getComputedStyle(that.scroller,null).left.replace(/[^0-9-]/g,'')*1;y=getComputedStyle(that.scroller,null).top.replace(/[^0-9-]/g,'')*1;}
if(x!=that.x||y!=that.y){if(that.options.useTransition)that._unbind('webkitTransitionEnd');else cancelFrame(that.aniTime);that.steps=[];that._pos(x,y);}}
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that.pointX=point.pageX;that.pointY=point.pageY;if(newX>0||newX<that.maxScrollX){newX=that.options.bounce?that.x+(deltaX/2):newX>=0||that.maxScrollX>=0?0:that.maxScrollX;}
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if(that.options.lockDirection){if(that.absDistX>that.absDistY+5){newY=that.y;deltaY=0;}else if(that.absDistY>that.absDistX+5){newX=that.x;deltaX=0;}}
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if(!that.moved){if(hasTouch){if(that.doubleTapTimer&&that.options.zoom){clearTimeout(that.doubleTapTimer);that.doubleTapTimer=null;if(that.options.onZoomStart)that.options.onZoomStart.call(that,e);that.zoom(that.pointX,that.pointY,that.scale==1?that.options.doubleTapZoom:1);if(that.options.onZoomEnd){setTimeout(function(){that.options.onZoomEnd.call(that,e);},200);}}else{that.doubleTapTimer=setTimeout(function(){that.doubleTapTimer=null;target=point.target;while(target.nodeType!=1)target=target.parentNode;if(target.tagName!='SELECT'&&target.tagName!='INPUT'&&target.tagName!='TEXTAREA'){ev=document.createEvent('MouseEvents');ev.initMouseEvent('click',true,true,e.view,1,point.screenX,point.screenY,point.clientX,point.clientY,e.ctrlKey,e.altKey,e.shiftKey,e.metaKey,0,null);ev._fake=true;target.dispatchEvent(ev);}},that.options.zoom?250:0);}}
that._resetPos(200);if(that.options.onTouchEnd)that.options.onTouchEnd.call(that,e);return;}
if(duration<300&&that.options.momentum){momentumX=newPosX?that._momentum(newPosX-that.startX,duration,-that.x,that.scrollerW-that.wrapperW+that.x,that.options.bounce?that.wrapperW:0):momentumX;momentumY=newPosY?that._momentum(newPosY-that.startY,duration,-that.y,(that.maxScrollY<0?that.scrollerH-that.wrapperH+that.y-that.minScrollY:0),that.options.bounce?that.wrapperH:0):momentumY;newPosX=that.x+momentumX.dist;newPosY=that.y+momentumY.dist;if((that.x>0&&newPosX>0)||(that.x<that.maxScrollX&&newPosX<that.maxScrollX))momentumX={dist:0,time:0};if((that.y>that.minScrollY&&newPosY>that.minScrollY)||(that.y<that.maxScrollY&&newPosY<that.maxScrollY))momentumY={dist:0,time:0};}
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if(that.options.snap){distX=newPosX-that.absStartX;distY=newPosY-that.absStartY;if(m.abs(distX)<that.options.snapThreshold&&m.abs(distY)<that.options.snapThreshold)that.scrollTo(that.absStartX,that.absStartY,200);else{snap=that._snap(that.x,that.y);if(snap.x!=that.x||snap.y!=that.y)that.scrollTo(snap.x,snap.y,snap.time);}
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if(that.hScrollbar&&that.options.hideScrollbar){if(vendor=='webkit')that.hScrollbarWrapper.style[vendor+'TransitionDelay']='300ms';that.hScrollbarWrapper.style.opacity='0';}
if(that.vScrollbar&&that.options.hideScrollbar){if(vendor=='webkit')that.vScrollbarWrapper.style[vendor+'TransitionDelay']='300ms';that.vScrollbarWrapper.style.opacity='0';}
return;}
that.scrollTo(resetX,resetY,time||0);},_wheel:function(e){var that=this,wheelDeltaX,wheelDeltaY,deltaX,deltaY,deltaScale;if('wheelDeltaX'in e){wheelDeltaX=e.wheelDeltaX/12;wheelDeltaY=e.wheelDeltaY/12;}else if('detail'in e){wheelDeltaX=wheelDeltaY=-e.detail*3;}else{wheelDeltaX=wheelDeltaY=-e.wheelDelta;}
if(that.options.wheelAction=='zoom'){deltaScale=that.scale*Math.pow(2,1/3*(wheelDeltaY?wheelDeltaY/Math.abs(wheelDeltaY):0));if(deltaScale<that.options.zoomMin)deltaScale=that.options.zoomMin;if(deltaScale>that.options.zoomMax)deltaScale=that.options.zoomMax;if(deltaScale!=that.scale){if(!that.wheelZoomCount&&that.options.onZoomStart)that.options.onZoomStart.call(that,e);that.wheelZoomCount++;that.zoom(e.pageX,e.pageY,deltaScale,400);setTimeout(function(){that.wheelZoomCount--;if(!that.wheelZoomCount&&that.options.onZoomEnd)that.options.onZoomEnd.call(that,e);},400);}
return;}
deltaX=that.x+wheelDeltaX;deltaY=that.y+wheelDeltaY;if(deltaX>0)deltaX=0;else if(deltaX<that.maxScrollX)deltaX=that.maxScrollX;if(deltaY>that.minScrollY)deltaY=that.minScrollY;else if(deltaY<that.maxScrollY)deltaY=that.maxScrollY;that.scrollTo(deltaX,deltaY,0);},_mouseout:function(e){var t=e.relatedTarget;if(!t){this._end(e);return;}
while(t=t.parentNode)if(t==this.wrapper)return;this._end(e);},_transitionEnd:function(e){var that=this;if(e.target!=that.scroller)return;that._unbind('webkitTransitionEnd');that._startAni();},_startAni:function(){var that=this,startX=that.x,startY=that.y,startTime=Date.now(),step,easeOut,animate;if(that.animating)return;if(!that.steps.length){that._resetPos(400);return;}
step=that.steps.shift();if(step.x==startX&&step.y==startY)step.time=0;that.animating=true;that.moved=true;if(that.options.useTransition){that._transitionTime(step.time);that._pos(step.x,step.y);that.animating=false;if(step.time)that._bind('webkitTransitionEnd');else that._resetPos(0);return;}
animate=function(){var now=Date.now(),newX,newY;if(now>=startTime+step.time){that._pos(step.x,step.y);that.animating=false;if(that.options.onAnimationEnd)that.options.onAnimationEnd.call(that);that._startAni();return;}
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newDist=newDist*(dist<0?-1:1);newTime=speed/deceleration;return{dist:newDist,time:mround(newTime)};},_offset:function(el){var left=-el.offsetLeft,top=-el.offsetTop;while(el=el.offsetParent){left-=el.offsetLeft;top-=el.offsetTop;}
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return{left:left,top:top};},_snap:function(x,y){var that=this,i,l,page,time,sizeX,sizeY;page=that.pagesX.length-1;for(i=0,l=that.pagesX.length;i<l;i++){if(x>=that.pagesX[i]){page=i;break;}}
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