pwa
/
Lungo.js
réplica de https://github.com/tapquo/Lungo.js.git


			
				
					
						
						
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							/**
 *
 *    /$$
 *   | $$
 *   | $$       /$$   /$$ /$$$$$$$   /$$$$$$   /$$$$$$
 *   | $$      | $$  | $$| $$__  $$ /$$__  $$ /$$__  $$
 *   | $$      | $$  | $$| $$  \ $$| $$  \ $$| $$  \ $$
 *   | $$      | $$  | $$| $$  | $$| $$  | $$| $$  | $$
 *   | $$$$$$$$|  $$$$$$/| $$  | $$|  $$$$$$$|  $$$$$$/
 *   |________/ \______/ |__/  |__/ \____  $$ \______/
 *                                  /$$  \ $$
 *                                 |  $$$$$$/
 *                                  \______/
 *
 * @copyright 2011 TapQuo Inc (c)
 * @license   http://www.github.com/tapquo/lungo/blob/master/LICENSE.txt
 * @version   1.0.0
 * @link      https://github.com/TapQuo/Lungo.js
 *
 * @author   Javier Jimenez Villar <javi@tapquo.com> || @soyjavi
 * @author   Guillermo Pascual <pasku@tapquo.com> || @pasku1
 */

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g+"-transform:"+A+"0,0"+E;if(this.options.useTransition)e.style.cssText+=";-"+g+"-transition-timing-function:cubic-bezier(0.33,0.66,0.66,1)";this[c+"ScrollbarWrapper"].appendChild(e);this[c+"ScrollbarIndicator"]=e}if(c=="h"){this.hScrollbarSize=this.hScrollbarWrapper.clientWidth;this.hScrollbarIndicatorSize=b.max(b.round(this.hScrollbarSize*this.hScrollbarSize/this.scrollerW),8);this.hScrollbarIndicator.style.width=this.hScrollbarIndicatorSize+"px";this.hScrollbarMaxScroll=this.hScrollbarSize-this.hScrollbarIndicatorSize;
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this[c+"ScrollbarMaxScroll"])*3);if(e<8)e=8;this[c+"ScrollbarIndicator"].style[c=="h"?"width":"height"]=e+"px";e=this[c+"ScrollbarMaxScroll"]+(this[c+"ScrollbarIndicatorSize"]-e)}this[c+"ScrollbarWrapper"].style[g+"TransitionDelay"]="0";this[c+"ScrollbarWrapper"].style.opacity=a&&this.options.hideScrollbar?"0":"1";this[c+"ScrollbarIndicator"].style[g+"Transform"]=A+(c=="h"?e+"px,0":"0,"+e+"px")+E}},_start:function(c){var a=j?c.touches[0]:c,e,r;if(this.enabled){this.options.onBeforeScrollStart&&this.options.onBeforeScrollStart.call(this,
c);if(this.options.useTransition||this.options.zoom)this._transitionTime(0);this.zoomed=this.animating=this.moved=false;this.dirY=this.dirX=this.absDistY=this.absDistX=this.distY=this.distX=0;if(this.options.zoom&&j&&c.touches.length>1){r=b.abs(c.touches[0].pageX-c.touches[1].pageX);e=b.abs(c.touches[0].pageY-c.touches[1].pageY);this.touchesDistStart=b.sqrt(r*r+e*e);this.originX=b.abs(c.touches[0].pageX+c.touches[1].pageX-this.wrapperOffsetLeft*2)/2-this.x;this.originY=b.abs(c.touches[0].pageY+c.touches[1].pageY-
this.wrapperOffsetTop*2)/2-this.y;this.options.onZoomStart&&this.options.onZoomStart.call(this,c)}if(this.options.momentum){if(this.options.useTransform){e=getComputedStyle(this.scroller,null)[g+"Transform"].replace(/[^0-9-.,]/g,"").split(",");r=e[4]*1;e=e[5]*1}else{r=getComputedStyle(this.scroller,null).left.replace(/[^0-9-]/g,"")*1;e=getComputedStyle(this.scroller,null).top.replace(/[^0-9-]/g,"")*1}if(r!=this.x||e!=this.y){this.options.useTransition?this._unbind("webkitTransitionEnd"):x(this.aniTime);
this.steps=[];this._pos(r,e)}}this.absStartX=this.x;this.absStartY=this.y;this.startX=this.x;this.startY=this.y;this.pointX=a.pageX;this.pointY=a.pageY;this.startTime=c.timeStamp||(new Date).getTime();this.options.onScrollStart&&this.options.onScrollStart.call(this,c);this._bind(w);this._bind(B);this._bind(F)}},_move:function(c){var a=j?c.touches[0]:c,e=a.pageX-this.pointX,r=a.pageY-this.pointY,u=this.x+e,z=this.y+r,D=c.timeStamp||(new Date).getTime();this.options.onBeforeScrollMove&&this.options.onBeforeScrollMove.call(this,
c);if(this.options.zoom&&j&&c.touches.length>1){u=b.abs(c.touches[0].pageX-c.touches[1].pageX);z=b.abs(c.touches[0].pageY-c.touches[1].pageY);this.touchesDist=b.sqrt(u*u+z*z);this.zoomed=true;a=1/this.touchesDistStart*this.touchesDist*this.scale;if(a<this.options.zoomMin)a=0.5*this.options.zoomMin*Math.pow(2,a/this.options.zoomMin);else if(a>this.options.zoomMax)a=2*this.options.zoomMax*Math.pow(0.5,this.options.zoomMax/a);this.lastScale=a/this.scale;u=this.originX-this.originX*this.lastScale+this.x;
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e;this.distY+=r;this.absDistX=b.abs(this.distX);this.absDistY=b.abs(this.distY)}else{if(this.options.lockDirection)if(this.absDistX>this.absDistY+5){z=this.y;r=0}else if(this.absDistY>this.absDistX+5){u=this.x;e=0}this.moved=true;this._pos(u,z);this.dirX=e>0?-1:e<0?1:0;this.dirY=r>0?-1:r<0?1:0;if(D-this.startTime>300){this.startTime=D;this.startX=this.x;this.startY=this.y}this.options.onScrollMove&&this.options.onScrollMove.call(this,c)}}},_end:function(c){if(!(j&&c.touches.length!=0)){var a=this,
e=j?c.changedTouches[0]:c,r,u,z={dist:0,time:0},D={dist:0,time:0},H=(c.timeStamp||(new Date).getTime())-a.startTime,G=a.x,I=a.y;a._unbind(w);a._unbind(B);a._unbind(F);a.options.onBeforeScrollEnd&&a.options.onBeforeScrollEnd.call(a,c);if(a.zoomed){G=a.scale*a.lastScale;G=Math.max(a.options.zoomMin,G);G=Math.min(a.options.zoomMax,G);a.lastScale=G/a.scale;a.scale=G;a.x=a.originX-a.originX*a.lastScale+a.x;a.y=a.originY-a.originY*a.lastScale+a.y;a.scroller.style[g+"TransitionDuration"]="200ms";a.scroller.style[g+
"Transform"]=A+a.x+"px,"+a.y+"px"+E+" scale("+a.scale+")";a.zoomed=false;a.refresh();a.options.onZoomEnd&&a.options.onZoomEnd.call(a,c)}else{if(a.moved){if(H<300&&a.options.momentum){z=G?a._momentum(G-a.startX,H,-a.x,a.scrollerW-a.wrapperW+a.x,a.options.bounce?a.wrapperW:0):z;D=I?a._momentum(I-a.startY,H,-a.y,a.maxScrollY<0?a.scrollerH-a.wrapperH+a.y-a.minScrollY:0,a.options.bounce?a.wrapperH:0):D;G=a.x+z.dist;I=a.y+D.dist;if(a.x>0&&G>0||a.x<a.maxScrollX&&G<a.maxScrollX)z={dist:0,time:0};if(a.y>a.minScrollY&&
I>a.minScrollY||a.y<a.maxScrollY&&I<a.maxScrollY)D={dist:0,time:0}}if(z.dist||D.dist){H=b.max(b.max(z.time,D.time),10);if(a.options.snap){z=G-a.absStartX;D=I-a.absStartY;if(b.abs(z)<a.options.snapThreshold&&b.abs(D)<a.options.snapThreshold)a.scrollTo(a.absStartX,a.absStartY,200);else{snap=a._snap(G,I);G=snap.x;I=snap.y;H=b.max(snap.time,H)}}a.scrollTo(G,I,H)}else if(a.options.snap){z=G-a.absStartX;D=I-a.absStartY;if(b.abs(z)<a.options.snapThreshold&&b.abs(D)<a.options.snapThreshold)a.scrollTo(a.absStartX,
a.absStartY,200);else{snap=a._snap(a.x,a.y);if(snap.x!=a.x||snap.y!=a.y)a.scrollTo(snap.x,snap.y,snap.time)}}else a._resetPos(200)}else{if(j)if(a.doubleTapTimer&&a.options.zoom){clearTimeout(a.doubleTapTimer);a.doubleTapTimer=null;a.options.onZoomStart&&a.options.onZoomStart.call(a,c);a.zoom(a.pointX,a.pointY,a.scale==1?a.options.doubleTapZoom:1);a.options.onZoomEnd&&setTimeout(function(){a.options.onZoomEnd.call(a,c)},200)}else a.doubleTapTimer=setTimeout(function(){a.doubleTapTimer=null;for(r=e.target;r.nodeType!=
1;)r=r.parentNode;if(r.tagName!="SELECT"&&r.tagName!="INPUT"&&r.tagName!="TEXTAREA"){u=document.createEvent("MouseEvents");u.initMouseEvent("click",true,true,c.view,1,e.screenX,e.screenY,e.clientX,e.clientY,c.ctrlKey,c.altKey,c.shiftKey,c.metaKey,0,null);u._fake=true;r.dispatchEvent(u)}},a.options.zoom?250:0);a._resetPos(200)}a.options.onTouchEnd&&a.options.onTouchEnd.call(a,c)}}},_resetPos:function(c){var a=this.x>=0?0:this.x<this.maxScrollX?this.maxScrollX:this.x,e=this.y>=this.minScrollY||this.maxScrollY>
0?this.minScrollY:this.y<this.maxScrollY?this.maxScrollY:this.y;if(a==this.x&&e==this.y){if(this.moved){this.moved=false;this.options.onScrollEnd&&this.options.onScrollEnd.call(this)}if(this.hScrollbar&&this.options.hideScrollbar){if(g=="webkit")this.hScrollbarWrapper.style[g+"TransitionDelay"]="300ms";this.hScrollbarWrapper.style.opacity="0"}if(this.vScrollbar&&this.options.hideScrollbar){if(g=="webkit")this.vScrollbarWrapper.style[g+"TransitionDelay"]="300ms";this.vScrollbarWrapper.style.opacity=
"0"}}else this.scrollTo(a,e,c||0)},_wheel:function(c){var a=this,e,r;if("wheelDeltaX"in c){e=c.wheelDeltaX/12;r=c.wheelDeltaY/12}else e="detail"in c?r=-c.detail*3:r=-c.wheelDelta;if(a.options.wheelAction=="zoom"){r=a.scale*Math.pow(2,1/3*(r?r/Math.abs(r):0));if(r<a.options.zoomMin)r=a.options.zoomMin;if(r>a.options.zoomMax)r=a.options.zoomMax;if(r!=a.scale){!a.wheelZoomCount&&a.options.onZoomStart&&a.options.onZoomStart.call(a,c);a.wheelZoomCount++;a.zoom(c.pageX,c.pageY,r,400);setTimeout(function(){a.wheelZoomCount--;
!a.wheelZoomCount&&a.options.onZoomEnd&&a.options.onZoomEnd.call(a,c)},400)}}else{e=a.x+e;r=a.y+r;if(e>0)e=0;else if(e<a.maxScrollX)e=a.maxScrollX;if(r>a.minScrollY)r=a.minScrollY;else if(r<a.maxScrollY)r=a.maxScrollY;a.scrollTo(e,r,0)}},_mouseout:function(c){var a=c.relatedTarget;if(a)for(;a=a.parentNode;)if(a==this.wrapper)return;this._end(c)},_transitionEnd:function(c){if(c.target==this.scroller){this._unbind("webkitTransitionEnd");this._startAni()}},_startAni:function(){var c=this,a=c.x,e=c.y,
r=(new Date).getTime(),u,z;if(!c.animating)if(c.steps.length){u=c.steps.shift();if(u.x==a&&u.y==e)u.time=0;c.animating=true;c.moved=true;if(c.options.useTransition){c._transitionTime(u.time);c._pos(u.x,u.y);c.animating=false;u.time?c._bind("webkitTransitionEnd"):c._resetPos(0)}else(function D(){var H=(new Date).getTime();if(H>=r+u.time){c._pos(u.x,u.y);c.animating=false;c.options.onAnimationEnd&&c.options.onAnimationEnd.call(c);c._startAni()}else{H=(H-r)/u.time-1;z=b.sqrt(1-H*H);H=(u.x-a)*z+a;c._pos(H,
(u.y-e)*z+e);if(c.animating)c.aniTime=v(D)}})()}else c._resetPos(400)},_transitionTime:function(c){c+="ms";this.scroller.style[g+"TransitionDuration"]=c;if(this.hScrollbar)this.hScrollbarIndicator.style[g+"TransitionDuration"]=c;if(this.vScrollbar)this.vScrollbarIndicator.style[g+"TransitionDuration"]=c},_momentum:function(c,a,e,r,u){a=b.abs(c)/a;var z=a*a/0.0012,D=0;D=0;if(c>0&&z>e){D=u/(6/(z/a*6.0E-4));e+=D;a=a*e/z;z=e}else if(c<0&&z>r){D=u/(6/(z/a*6.0E-4));r+=D;a=a*r/z;z=r}z*=c<0?-1:1;D=a/6.0E-4;
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0;e<u;e++)if(a>=this.pagesY[e]){u=e;break}u==this.currPageY&&u>0&&this.dirY<0&&u--;a=this.pagesY[u];e=(e=b.abs(a-this.pagesY[this.currPageY]))?b.abs(this.y-a)/e*500:0;this.currPageY=u;u=b.round(b.max(r,e))||200;return{x:c,y:a,time:u}},_bind:function(c,a,e){(a||this.scroller).addEventListener(c,this,!!e)},_unbind:function(c,a,e){(a||this.scroller).removeEventListener(c,this,!!e)},destroy:function(){this.scroller.style[g+"Transform"]="";this.vScrollbar=this.hScrollbar=false;this._scrollbar("h");this._scrollbar("v");
this._unbind(t,window);this._unbind(s);this._unbind(w);this._unbind(B);this._unbind(F);if(this.options.hasTouch){this._unbind("mouseout",this.wrapper);this._unbind(C)}this.options.useTransition&&this._unbind("webkitTransitionEnd");this.options.checkDOMChanges&&clearInterval(this.checkDOMTime);this.options.onDestroy&&this.options.onDestroy.call(this)},refresh:function(){var c,a=0,e=0;if(this.scale<this.options.zoomMin)this.scale=this.options.zoomMin;this.wrapperW=this.wrapper.clientWidth||1;this.wrapperH=
this.wrapper.clientHeight||1;this.minScrollY=-this.options.topOffset||0;this.scrollerW=b.round(this.scroller.offsetWidth*this.scale);this.scrollerH=b.round((this.scroller.offsetHeight+this.minScrollY)*this.scale);this.maxScrollX=this.wrapperW-this.scrollerW;this.maxScrollY=this.wrapperH-this.scrollerH+this.minScrollY;this.dirY=this.dirX=0;this.options.onRefresh&&this.options.onRefresh.call(this);this.hScroll=this.options.hScroll&&this.maxScrollX<0;this.vScroll=this.options.vScroll&&(!this.options.bounceLock&&
!this.hScroll||this.scrollerH>this.wrapperH);this.hScrollbar=this.hScroll&&this.options.hScrollbar;this.vScrollbar=this.vScroll&&this.options.vScrollbar&&this.scrollerH>this.wrapperH;c=this._offset(this.wrapper);this.wrapperOffsetLeft=-c.left;this.wrapperOffsetTop=-c.top;if(typeof this.options.snap=="string"){this.pagesX=[];this.pagesY=[];els=this.scroller.querySelectorAll(this.options.snap);i=0;for(l=els.length;i<l;i++){a=this._offset(els[i]);a.left+=this.wrapperOffsetLeft;a.top+=this.wrapperOffsetTop;
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