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jquery.nicescroll.js
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jquery.nicescroll.js
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/* jquery.nicescroll
-- version 3.5.6
-- copyright 2014-10-09 InuYaksa*2014
-- licensed under the MIT
--
-- http://nicescroll.areaaperta.com/
-- https://github.com/inuyaksa/jquery.nicescroll
--
*/
(function (factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as anonymous module.
define(['jquery'], factory);
} else {
// Browser globals.
factory(jQuery);
}
}(function(jQuery){
// globals
var domfocus = false;
var mousefocus = false;
var zoomactive = false;
var tabindexcounter = 0;
var ascrailcounter = 2000;
var globalmaxzindex = 0;
var $ = jQuery; // sandbox
// http://stackoverflow.com/questions/2161159/get-script-path
function getScriptPath() {
var scripts=document.getElementsByTagName('script');
var path=scripts[scripts.length-1].src.split('?')[0];
return (path.split('/').length>0) ? path.split('/').slice(0,-1).join('/')+'/' : '';
}
// var scriptpath = getScriptPath();
var vendors = ['ms','moz','webkit','o'];
var setAnimationFrame = window.requestAnimationFrame||false;
var clearAnimationFrame = window.cancelAnimationFrame||false;
if (!setAnimationFrame) {
for(var vx in vendors) {
var v = vendors[vx];
if (!setAnimationFrame) setAnimationFrame = window[v+'RequestAnimationFrame'];
if (!clearAnimationFrame) clearAnimationFrame = window[v+'CancelAnimationFrame']||window[v+'CancelRequestAnimationFrame'];
}
}
var clsMutationObserver = window.MutationObserver || window.WebKitMutationObserver || false;
var _globaloptions = {
zindex:"auto",
cursoropacitymin:0,
cursoropacitymax:1,
cursorcolor:"#424242",
cursorwidth:"5px",
cursorborder:"1px solid #fff",
cursorborderradius:"5px",
scrollspeed:60,
mousescrollstep:8*3,
touchbehavior:false,
hwacceleration:true,
usetransition:true,
boxzoom:false,
dblclickzoom:true,
gesturezoom:true,
grabcursorenabled:true,
autohidemode:true,
background:"",
iframeautoresize:true,
cursorminheight:32,
preservenativescrolling:true,
railoffset:false,
railhoffset:false,
bouncescroll:true,
spacebarenabled:true,
railpadding:{top:0,right:0,left:0,bottom:0},
disableoutline:true,
horizrailenabled:true,
railalign:"right",
railvalign:"bottom",
enabletranslate3d:true,
enablemousewheel:true,
enablekeyboard:true,
smoothscroll:true,
sensitiverail:true,
enablemouselockapi:true,
// cursormaxheight:false,
cursorfixedheight:false,
directionlockdeadzone:6,
hidecursordelay:400,
nativeparentscrolling:true,
enablescrollonselection:true,
overflowx:true,
overflowy:true,
cursordragspeed:0.3,
rtlmode:"auto",
cursordragontouch:false,
oneaxismousemode:"auto",
scriptpath:getScriptPath()
};
var browserdetected = false;
var getBrowserDetection = function() {
if (browserdetected) return browserdetected;
var domtest = document.createElement('DIV');
var d = {};
d.haspointerlock = "pointerLockElement" in document || "mozPointerLockElement" in document || "webkitPointerLockElement" in document;
d.isopera = ("opera" in window);
d.isopera12 = (d.isopera&&("getUserMedia" in navigator));
d.isoperamini = (Object.prototype.toString.call(window.operamini) === "[object OperaMini]");
d.isie = (("all" in document) && ("attachEvent" in domtest) && !d.isopera);
d.isieold = (d.isie && !("msInterpolationMode" in domtest.style)); // IE6 and older
d.isie7 = d.isie&&!d.isieold&&(!("documentMode" in document)||(document.documentMode==7));
d.isie8 = d.isie&&("documentMode" in document)&&(document.documentMode==8);
d.isie9 = d.isie&&("performance" in window)&&(document.documentMode>=9);
d.isie10 = d.isie&&("performance" in window)&&(document.documentMode>=10);
d.isie9mobile = /iemobile.9/i.test(navigator.userAgent); //wp 7.1 mango
if (d.isie9mobile) d.isie9 = false;
d.isie7mobile = (!d.isie9mobile&&d.isie7) && /iemobile/i.test(navigator.userAgent); //wp 7.0
d.ismozilla = ("MozAppearance" in domtest.style);
d.iswebkit = ("WebkitAppearance" in domtest.style);
d.ischrome = ("chrome" in window);
d.ischrome22 = (d.ischrome&&d.haspointerlock);
d.ischrome26 = (d.ischrome&&("transition" in domtest.style)); // issue with transform detection (maintain prefix)
d.cantouch = ("ontouchstart" in document.documentElement)||("ontouchstart" in window); // detection for Chrome Touch Emulation
d.hasmstouch = (window.navigator.msPointerEnabled||false); // IE10+ pointer events
d.ismac = /^mac$/i.test(navigator.platform);
d.isios = (d.cantouch && /iphone|ipad|ipod/i.test(navigator.platform));
d.isios4 = ((d.isios)&&!("seal" in Object));
d.isandroid = (/android/i.test(navigator.userAgent));
d.trstyle = false;
d.hastransform = false;
d.hastranslate3d = false;
d.transitionstyle = false;
d.hastransition = false;
d.transitionend = false;
var check = ['transform','msTransform','webkitTransform','MozTransform','OTransform'];
for(var a=0;a<check.length;a++){
if (typeof domtest.style[check[a]] != "undefined") {
d.trstyle = check[a];
break;
}
}
d.hastransform = (d.trstyle != false);
if (d.hastransform) {
domtest.style[d.trstyle] = "translate3d(1px,2px,3px)";
d.hastranslate3d = /translate3d/.test(domtest.style[d.trstyle]);
}
d.transitionstyle = false;
d.prefixstyle = '';
d.transitionend = false;
var check = ['transition','webkitTransition','MozTransition','OTransition','OTransition','msTransition','KhtmlTransition'];
var prefix = ['','-webkit-','-moz-','-o-','-o','-ms-','-khtml-'];
var evs = ['transitionend','webkitTransitionEnd','transitionend','otransitionend','oTransitionEnd','msTransitionEnd','KhtmlTransitionEnd'];
for(var a=0;a<check.length;a++) {
if (check[a] in domtest.style) {
d.transitionstyle = check[a];
d.prefixstyle = prefix[a];
d.transitionend = evs[a];
break;
}
}
if (d.ischrome26) { // use always prefix
d.prefixstyle = prefix[1];
}
d.hastransition = (d.transitionstyle);
function detectCursorGrab() {
var lst = ['-moz-grab','-webkit-grab','grab'];
if ((d.ischrome&&!d.ischrome22)||d.isie) lst=[]; // force setting for IE returns false positive and chrome cursor bug
for(var a=0;a<lst.length;a++) {
var p = lst[a];
domtest.style['cursor']=p;
if (domtest.style['cursor']==p) return p;
}
return 'url(//mail.google.com/mail/images/2/openhand.cur),n-resize'; // thank you google for custom cursor!
}
d.cursorgrabvalue = detectCursorGrab();
d.hasmousecapture = ("setCapture" in domtest);
d.hasMutationObserver = (clsMutationObserver !== false);
domtest = null; //memory released
browserdetected = d;
return d;
};
var NiceScrollClass = function(myopt,me) {
var self = this;
this.version = '3.5.6';
this.name = 'nicescroll';
this.me = me;
this.opt = {
doc:$("body"),
win:false
};
$.extend(this.opt,_globaloptions);
// Options for internal use
this.opt.snapbackspeed = 80;
if (myopt||false) {
for(var a in self.opt) {
if (typeof myopt[a] != "undefined") self.opt[a] = myopt[a];
}
}
this.doc = self.opt.doc;
this.iddoc = (this.doc&&this.doc[0])?this.doc[0].id||'':'';
this.ispage = /^BODY|HTML/.test((self.opt.win)?self.opt.win[0].nodeName:this.doc[0].nodeName);
this.haswrapper = (self.opt.win!==false);
this.win = self.opt.win||(this.ispage?$(window):this.doc);
this.docscroll = (this.ispage&&!this.haswrapper)?$(window):this.win;
this.body = $("body");
this.viewport = false;
this.isfixed = false;
this.iframe = false;
this.isiframe = ((this.doc[0].nodeName == 'IFRAME') && (this.win[0].nodeName == 'IFRAME'));
this.istextarea = (this.win[0].nodeName == 'TEXTAREA');
this.forcescreen = false; //force to use screen position on events
this.canshowonmouseevent = (self.opt.autohidemode!="scroll");
// Events jump table
this.onmousedown = false;
this.onmouseup = false;
this.onmousemove = false;
this.onmousewheel = false;
this.onkeypress = false;
this.ongesturezoom = false;
this.onclick = false;
// Nicescroll custom events
this.onscrollstart = false;
this.onscrollend = false;
this.onscrollcancel = false;
this.onzoomin = false;
this.onzoomout = false;
// Let's start!
this.view = false;
this.page = false;
this.scroll = {x:0,y:0};
this.scrollratio = {x:0,y:0};
this.cursorheight = 20;
this.scrollvaluemax = 0;
this.isrtlmode = (this.opt.rtlmode=="auto") ? ((this.win[0]==window?this.body:this.win).css("direction")=="rtl") : (this.opt.rtlmode===true);
// this.checkrtlmode = false;
this.scrollrunning = false;
this.scrollmom = false;
this.observer = false;
this.observerremover = false; // observer on parent for remove detection
do {
this.id = "ascrail"+(ascrailcounter++);
} while (document.getElementById(this.id));
this.rail = false;
this.cursor = false;
this.cursorfreezed = false;
this.selectiondrag = false;
this.zoom = false;
this.zoomactive = false;
this.hasfocus = false;
this.hasmousefocus = false;
this.visibility = true;
this.locked = false;
this.hidden = false; // rails always hidden
this.cursoractive = true; // user can interact with cursors
this.wheelprevented = false; //prevent mousewheel event
this.overflowx = self.opt.overflowx;
this.overflowy = self.opt.overflowy;
this.nativescrollingarea = false;
this.checkarea = 0;
this.events = []; // event list for unbind
this.saved = {};
this.delaylist = {};
this.synclist = {};
this.lastdeltax = 0;
this.lastdeltay = 0;
this.detected = getBrowserDetection();
var cap = $.extend({},this.detected);
this.canhwscroll = (cap.hastransform&&self.opt.hwacceleration);
this.ishwscroll = (this.canhwscroll&&self.haswrapper);
this.istouchcapable = false; // desktop devices with touch screen support
//## Check WebKit-based desktop with touch support
if (cap.cantouch&&cap.iswebkit&&!cap.isios&&!cap.isandroid) {
this.istouchcapable = true;
cap.cantouch = false; // parse normal desktop events
}
//## Firefox 18 nightly build (desktop) false positive (or desktop with touch support)
if (cap.cantouch&&cap.ismozilla&&!cap.isios&&!cap.isandroid) {
this.istouchcapable = true;
cap.cantouch = false; // parse normal desktop events
}
//## disable MouseLock API on user request
if (!self.opt.enablemouselockapi) {
cap.hasmousecapture = false;
cap.haspointerlock = false;
}
this.delayed = function(name,fn,tm,lazy) {
var dd = self.delaylist[name];
var nw = (new Date()).getTime();
if (!lazy&&dd&&dd.tt) return false;
if (dd&&dd.tt) clearTimeout(dd.tt);
if (dd&&dd.last+tm>nw&&!dd.tt) {
self.delaylist[name] = {
last:nw+tm,
tt:setTimeout(function(){if(self||false){self.delaylist[name].tt=0;fn.call()}},tm)
}
}
else if (!dd||!dd.tt) {
self.delaylist[name] = {
last:nw,
tt:0
};
setTimeout(function(){fn.call();},0);
}
};
this.debounced = function(name,fn,tm) {
var dd = self.delaylist[name];
var nw = (new Date()).getTime();
self.delaylist[name] = fn;
if (!dd) {
setTimeout(function(){var fn=self.delaylist[name];self.delaylist[name]=false;fn.call();},tm);
}
};
var _onsync = false;
this.synched = function(name,fn) {
function requestSync() {
if (_onsync) return;
setAnimationFrame(function(){
_onsync = false;
for(name in self.synclist){
var fn = self.synclist[name];
if (fn) fn.call(self);
self.synclist[name] = false;
}
});
_onsync = true;
};
self.synclist[name] = fn;
requestSync();
return name;
};
this.unsynched = function(name) {
if (self.synclist[name]) self.synclist[name] = false;
};
this.css = function(el,pars) { // save & set
for(var n in pars) {
self.saved.css.push([el,n,el.css(n)]);
el.css(n,pars[n]);
}
};
this.scrollTop = function(val) {
return (typeof val == "undefined") ? self.getScrollTop() : self.setScrollTop(val);
};
this.scrollLeft = function(val) {
return (typeof val == "undefined") ? self.getScrollLeft() : self.setScrollLeft(val);
};
// derived by by Dan Pupius www.pupius.net
BezierClass = function(st,ed,spd,p1,p2,p3,p4) {
this.st = st;
this.ed = ed;
this.spd = spd;
this.p1 = p1||0;
this.p2 = p2||1;
this.p3 = p3||0;
this.p4 = p4||1;
this.ts = (new Date()).getTime();
this.df = this.ed-this.st;
};
BezierClass.prototype = {
B2:function(t){ return 3*t*t*(1-t) },
B3:function(t){ return 3*t*(1-t)*(1-t) },
B4:function(t){ return (1-t)*(1-t)*(1-t) },
getNow:function(){
var nw = (new Date()).getTime();
var pc = 1-((nw-this.ts)/this.spd);
var bz = this.B2(pc) + this.B3(pc) + this.B4(pc);
return (pc<0) ? this.ed : this.st+Math.round(this.df*bz);
},
update:function(ed,spd){
this.st = this.getNow();
this.ed = ed;
this.spd = spd;
this.ts = (new Date()).getTime();
this.df = this.ed-this.st;
return this;
}
};
if (this.ishwscroll) {
// hw accelerated scroll
this.doc.translate = {x:0,y:0,tx:"0px",ty:"0px"};
//this one can help to enable hw accel on ios6 http://indiegamr.com/ios6-html-hardware-acceleration-changes-and-how-to-fix-them/
if (cap.hastranslate3d&&cap.isios) this.doc.css("-webkit-backface-visibility","hidden"); // prevent flickering http://stackoverflow.com/questions/3461441/
//derived from http://stackoverflow.com/questions/11236090/
function getMatrixValues() {
var tr = self.doc.css(cap.trstyle);
if (tr&&(tr.substr(0,6)=="matrix")) {
return tr.replace(/^.*\((.*)\)$/g, "$1").replace(/px/g,'').split(/, +/);
}
return false;
}
this.getScrollTop = function(last) {
if (!last) {
var mtx = getMatrixValues();
if (mtx) return (mtx.length==16) ? -mtx[13] : -mtx[5]; //matrix3d 16 on IE10
if (self.timerscroll&&self.timerscroll.bz) return self.timerscroll.bz.getNow();
}
return self.doc.translate.y;
};
this.getScrollLeft = function(last) {
if (!last) {
var mtx = getMatrixValues();
if (mtx) return (mtx.length==16) ? -mtx[12] : -mtx[4]; //matrix3d 16 on IE10
if (self.timerscroll&&self.timerscroll.bh) return self.timerscroll.bh.getNow();
}
return self.doc.translate.x;
};
if (document.createEvent) {
this.notifyScrollEvent = function(el) {
var e = document.createEvent("UIEvents");
e.initUIEvent("scroll", false, true, window, 1);
el.dispatchEvent(e);
};
}
else if (document.fireEvent) {
this.notifyScrollEvent = function(el) {
var e = document.createEventObject();
el.fireEvent("onscroll");
e.cancelBubble = true;
};
}
else {
this.notifyScrollEvent = function(el,add) {}; //NOPE
}
var cxscrollleft = (this.isrtlmode) ? 1 : -1;
if (cap.hastranslate3d&&self.opt.enabletranslate3d) {
this.setScrollTop = function(val,silent) {
self.doc.translate.y = val;
self.doc.translate.ty = (val*-1)+"px";
self.doc.css(cap.trstyle,"translate3d("+self.doc.translate.tx+","+self.doc.translate.ty+",0px)");
if (!silent) self.notifyScrollEvent(self.win[0]);
};
this.setScrollLeft = function(val,silent) {
self.doc.translate.x = val;
self.doc.translate.tx = (val*cxscrollleft)+"px";
self.doc.css(cap.trstyle,"translate3d("+self.doc.translate.tx+","+self.doc.translate.ty+",0px)");
if (!silent) self.notifyScrollEvent(self.win[0]);
};
} else {
this.setScrollTop = function(val,silent) {
self.doc.translate.y = val;
self.doc.translate.ty = (val*-1)+"px";
self.doc.css(cap.trstyle,"translate("+self.doc.translate.tx+","+self.doc.translate.ty+")");
if (!silent) self.notifyScrollEvent(self.win[0]);
};
this.setScrollLeft = function(val,silent) {
self.doc.translate.x = val;
self.doc.translate.tx = (val*cxscrollleft)+"px";
self.doc.css(cap.trstyle,"translate("+self.doc.translate.tx+","+self.doc.translate.ty+")");
if (!silent) self.notifyScrollEvent(self.win[0]);
};
}
} else {
// native scroll
this.getScrollTop = function() {
return self.docscroll.scrollTop();
};
this.setScrollTop = function(val) {
return self.docscroll.scrollTop(val);
};
this.getScrollLeft = function() {
if(self.detected.ismozilla&&self.isrtlmode)
return Math.abs(self.docscroll.scrollLeft());
return self.docscroll.scrollLeft();
};
this.setScrollLeft = function(val) {
return self.docscroll.scrollLeft((self.detected.ismozilla&&self.isrtlmode)?-val:val);
};
}
this.getTarget = function(e) {
if (!e) return false;
if (e.target) return e.target;
if (e.srcElement) return e.srcElement;
return false;
};
this.hasParent = function(e,id) {
if (!e) return false;
var el = e.target||e.srcElement||e||false;
while (el && el.id != id) {
el = el.parentNode||false;
}
return (el!==false);
};
function getZIndex() {
var dom = self.win;
if ("zIndex" in dom) return dom.zIndex(); // use jQuery UI method when available
while (dom.length>0) {
if (dom[0].nodeType==9) return false;
var zi = dom.css('zIndex');
if (!isNaN(zi)&&zi!=0) return parseInt(zi);
dom = dom.parent();
}
return false;
};
//inspired by http://forum.jquery.com/topic/width-includes-border-width-when-set-to-thin-medium-thick-in-ie
var _convertBorderWidth = {"thin":1,"medium":3,"thick":5};
function getWidthToPixel(dom,prop,chkheight) {
var wd = dom.css(prop);
var px = parseFloat(wd);
if (isNaN(px)) {
px = _convertBorderWidth[wd]||0;
var brd = (px==3) ? ((chkheight)?(self.win.outerHeight() - self.win.innerHeight()):(self.win.outerWidth() - self.win.innerWidth())) : 1; //DON'T TRUST CSS
if (self.isie8&&px) px+=1;
return (brd) ? px : 0;
}
return px;
};
this.getOffset = function() {
if (self.isfixed) return {top:parseFloat(self.win.css('top')),left:parseFloat(self.win.css('left'))};
if (!self.viewport) return self.win.offset();
var ww = self.win.offset();
var vp = self.viewport.offset();
return {top:ww.top-vp.top+self.viewport.scrollTop(),left:ww.left-vp.left+self.viewport.scrollLeft()};
};
this.updateScrollBar = function(len) {
if (self.ishwscroll) {
self.rail.css({height:self.win.innerHeight()});
if (self.railh) self.railh.css({width:self.win.innerWidth()});
} else {
var wpos = self.getOffset();
var pos = {top:wpos.top,left:wpos.left};
pos.top+= getWidthToPixel(self.win,'border-top-width',true);
var brd = (self.win.outerWidth() - self.win.innerWidth())/2;
pos.left+= (self.rail.align) ? self.win.outerWidth() - getWidthToPixel(self.win,'border-right-width') - self.rail.width : getWidthToPixel(self.win,'border-left-width');
var off = self.opt.railoffset;
if (off) {
if (off.top) pos.top+=off.top;
if (self.rail.align&&off.left) pos.left+=off.left;
}
if (!self.locked) self.rail.css({top:pos.top,left:pos.left,height:(len)?len.h:self.win.innerHeight()});
if (self.zoom) {
self.zoom.css({top:pos.top+1,left:(self.rail.align==1) ? pos.left-20 : pos.left+self.rail.width+4});
}
if (self.railh&&!self.locked) {
var pos = {top:wpos.top,left:wpos.left};
var off = self.opt.railhoffset;
if (!!off) {
if (!!off.top) pos.top+=off.top;
if (!!off.left) pos.left+=off.left;
}
var y = (self.railh.align) ? pos.top + getWidthToPixel(self.win,'border-top-width',true) + self.win.innerHeight() - self.railh.height : pos.top + getWidthToPixel(self.win,'border-top-width',true);
var x = pos.left + getWidthToPixel(self.win,'border-left-width');
self.railh.css({top:y,left:x,width:self.railh.width});
}
}
};
this.doRailClick = function(e,dbl,hr) {
var fn,pg,cur,pos;
// if (self.rail.drag&&self.rail.drag.pt!=1) return;
if (self.locked) return;
// if (self.rail.drag) return;
// self.cancelScroll();
self.cancelEvent(e);
if (dbl) {
fn = (hr) ? self.doScrollLeft : self.doScrollTop;
cur = (hr) ? ((e.pageX - self.railh.offset().left - (self.cursorwidth/2)) * self.scrollratio.x) : ((e.pageY - self.rail.offset().top - (self.cursorheight/2)) * self.scrollratio.y);
fn(cur);
} else {
fn = (hr) ? self.doScrollLeftBy : self.doScrollBy;
cur = (hr) ? self.scroll.x : self.scroll.y;
pos = (hr) ? e.pageX - self.railh.offset().left : e.pageY - self.rail.offset().top;
pg = (hr) ? self.view.w : self.view.h;
(cur>=pos) ? fn(pg) : fn(-pg);
}
};
self.hasanimationframe = (setAnimationFrame);
self.hascancelanimationframe = (clearAnimationFrame);
if (!self.hasanimationframe) {
setAnimationFrame=function(fn){return setTimeout(fn,15-Math.floor((+new Date)/1000)%16)}; // 1000/60)};
clearAnimationFrame=clearInterval;
}
else if (!self.hascancelanimationframe) clearAnimationFrame=function(){self.cancelAnimationFrame=true};
this.init = function() {
self.saved.css = [];
if (cap.isie7mobile) return true; // SORRY, DO NOT WORK!
if (cap.isoperamini) return true; // SORRY, DO NOT WORK!
if (cap.hasmstouch) self.css((self.ispage)?$("html"):self.win,{'-ms-touch-action':'none'});
self.zindex = "auto";
if (!self.ispage&&self.opt.zindex=="auto") {
self.zindex = getZIndex()||"auto";
} else {
self.zindex = self.opt.zindex;
}
if (!self.ispage&&self.zindex!="auto") {
if (self.zindex>globalmaxzindex) globalmaxzindex=self.zindex;
}
if (self.isie&&self.zindex==0&&self.opt.zindex=="auto") { // fix IE auto == 0
self.zindex="auto";
}
/*
self.ispage = true;
self.haswrapper = true;
// self.win = $(window);
self.docscroll = $("body");
// self.doc = $("body");
*/
if (!self.ispage || (!cap.cantouch && !cap.isieold && !cap.isie9mobile)) {
var cont = self.docscroll;
if (self.ispage) cont = (self.haswrapper)?self.win:self.doc;
if (!cap.isie9mobile) self.css(cont,{'overflow-y':'hidden'});
if (self.ispage&&cap.isie7) {
if (self.doc[0].nodeName=='BODY') self.css($("html"),{'overflow-y':'hidden'}); //IE7 double scrollbar issue
else if (self.doc[0].nodeName=='HTML') self.css($("body"),{'overflow-y':'hidden'}); //IE7 double scrollbar issue
}
if (cap.isios&&!self.ispage&&!self.haswrapper) self.css($("body"),{"-webkit-overflow-scrolling":"touch"}); //force hw acceleration
var cursor = $(document.createElement('div'));
cursor.css({
position:"relative",top:0,"float":"right",width:self.opt.cursorwidth,height:"0px",
'background-color':self.opt.cursorcolor,
border:self.opt.cursorborder,
'background-clip':'padding-box',
'-webkit-border-radius':self.opt.cursorborderradius,
'-moz-border-radius':self.opt.cursorborderradius,
'border-radius':self.opt.cursorborderradius
});
cursor.hborder = parseFloat(cursor.outerHeight() - cursor.innerHeight());
self.cursor = cursor;
var rail = $(document.createElement('div'));
rail.attr('id',self.id);
rail.addClass('nicescroll-rails');
var v,a,kp = ["left","right"]; //"top","bottom"
for(var n in kp) {
a=kp[n];
v = self.opt.railpadding[a];
(v) ? rail.css("padding-"+a,v+"px") : self.opt.railpadding[a] = 0;
}
rail.append(cursor);
rail.width = Math.max(parseFloat(self.opt.cursorwidth),cursor.outerWidth()) + self.opt.railpadding['left'] + self.opt.railpadding['right'];
rail.css({width:rail.width+"px",'zIndex':self.zindex,"background":self.opt.background,cursor:"default"});
rail.visibility = true;
rail.scrollable = true;
rail.align = (self.opt.railalign=="left") ? 0 : 1;
self.rail = rail;
self.rail.drag = false;
var zoom = false;
if (self.opt.boxzoom&&!self.ispage&&!cap.isieold) {
zoom = document.createElement('div');
self.bind(zoom,"click",self.doZoom);
self.zoom = $(zoom);
self.zoom.css({"cursor":"pointer",'z-index':self.zindex,'backgroundImage':'url('+self.opt.scriptpath+'zoomico.png)','height':18,'width':18,'backgroundPosition':'0px 0px'});
if (self.opt.dblclickzoom) self.bind(self.win,"dblclick",self.doZoom);
if (cap.cantouch&&self.opt.gesturezoom) {
self.ongesturezoom = function(e) {
if (e.scale>1.5) self.doZoomIn(e);
if (e.scale<0.8) self.doZoomOut(e);
return self.cancelEvent(e);
};
self.bind(self.win,"gestureend",self.ongesturezoom);
}
}
// init HORIZ
self.railh = false;
if (self.opt.horizrailenabled) {
self.css(cont,{'overflow-x':'hidden'});
var cursor = $(document.createElement('div'));
cursor.css({
position:"absolute",top:0,height:self.opt.cursorwidth,width:"0px",
'background-color':self.opt.cursorcolor,
border:self.opt.cursorborder,
'background-clip':'padding-box',
'-webkit-border-radius':self.opt.cursorborderradius,
'-moz-border-radius':self.opt.cursorborderradius,
'border-radius':self.opt.cursorborderradius
});
cursor.wborder = parseFloat(cursor.outerWidth() - cursor.innerWidth());
self.cursorh = cursor;
var railh = $(document.createElement('div'));
railh.attr('id',self.id+'-hr');
railh.addClass('nicescroll-rails');
railh.height = Math.max(parseFloat(self.opt.cursorwidth),cursor.outerHeight());
railh.css({height:railh.height+"px",'zIndex':self.zindex,"background":self.opt.background});
railh.append(cursor);
railh.visibility = true;
railh.scrollable = true;
railh.align = (self.opt.railvalign=="top") ? 0 : 1;
self.railh = railh;
self.railh.drag = false;
}
//
if (self.ispage) {
rail.css({position:"fixed",top:"0px",height:"100%"});
(rail.align) ? rail.css({right:"0px"}) : rail.css({left:"0px"});
self.body.append(rail);
if (self.railh) {
railh.css({position:"fixed",left:"0px",width:"100%"});
(railh.align) ? railh.css({bottom:"0px"}) : railh.css({top:"0px"});
self.body.append(railh);
}
} else {
if (self.ishwscroll) {
if (self.win.css('position')=='static') self.css(self.win,{'position':'relative'});
var bd = (self.win[0].nodeName == 'HTML') ? self.body : self.win;
if (self.zoom) {
self.zoom.css({position:"absolute",top:1,right:0,"margin-right":rail.width+4});
bd.append(self.zoom);
}
rail.css({position:"absolute",top:0});
(rail.align) ? rail.css({right:0}) : rail.css({left:0});
bd.append(rail);
if (railh) {
railh.css({position:"absolute",left:0,bottom:0});
(railh.align) ? railh.css({bottom:0}) : railh.css({top:0});
bd.append(railh);
}
} else {
self.isfixed = (self.win.css("position")=="fixed");
var rlpos = (self.isfixed) ? "fixed" : "absolute";
if (!self.isfixed) self.viewport = self.getViewport(self.win[0]);
if (self.viewport) {
self.body = self.viewport;
if ((/fixed|relative|absolute/.test(self.viewport.css("position")))==false) self.css(self.viewport,{"position":"relative"});
}
rail.css({position:rlpos});
if (self.zoom) self.zoom.css({position:rlpos});
self.updateScrollBar();
self.body.append(rail);
if (self.zoom) self.body.append(self.zoom);
if (self.railh) {
railh.css({position:rlpos});
self.body.append(railh);
}
}
if (cap.isios) self.css(self.win,{'-webkit-tap-highlight-color':'rgba(0,0,0,0)','-webkit-touch-callout':'none'}); // prevent grey layer on click
if (cap.isie&&self.opt.disableoutline) self.win.attr("hideFocus","true"); // IE, prevent dotted rectangle on focused div
if (cap.iswebkit&&self.opt.disableoutline) self.win.css({"outline":"none"});
// if (cap.isopera&&self.opt.disableoutline) self.win.css({"outline":"0"}); // Opera to test [TODO]
}
if (self.opt.autohidemode===false) {
self.autohidedom = false;
self.rail.css({opacity:self.opt.cursoropacitymax});
if (self.railh) self.railh.css({opacity:self.opt.cursoropacitymax});
}
else if ((self.opt.autohidemode===true)||(self.opt.autohidemode==="leave")) {
self.autohidedom = $().add(self.rail);
if (cap.isie8) self.autohidedom=self.autohidedom.add(self.cursor);
if (self.railh) self.autohidedom=self.autohidedom.add(self.railh);
if (self.railh&&cap.isie8) self.autohidedom=self.autohidedom.add(self.cursorh);
}
else if (self.opt.autohidemode=="scroll") {
self.autohidedom = $().add(self.rail);
if (self.railh) self.autohidedom=self.autohidedom.add(self.railh);
}
else if (self.opt.autohidemode=="cursor") {
self.autohidedom = $().add(self.cursor);
if (self.railh) self.autohidedom=self.autohidedom.add(self.cursorh);
}
else if (self.opt.autohidemode=="hidden") {
self.autohidedom = false;
self.hide();
self.locked = false;
}
if (cap.isie9mobile) {
self.scrollmom = new ScrollMomentumClass2D(self);
/*
var trace = function(msg) {
var db = $("#debug");
if (isNaN(msg)&&(typeof msg != "string")) {
var x = [];
for(var a in msg) {
x.push(a+":"+msg[a]);
}
msg ="{"+x.join(",")+"}";
}
if (db.children().length>0) {
db.children().eq(0).before("<div>"+msg+"</div>");
} else {
db.append("<div>"+msg+"</div>");
}
}
window.onerror = function(msg,url,ln) {
trace("ERR: "+msg+" at "+ln);
}
*/
self.onmangotouch = function(e) {
var py = self.getScrollTop();
var px = self.getScrollLeft();
if ((py == self.scrollmom.lastscrolly)&&(px == self.scrollmom.lastscrollx)) return true;
// $("#debug").html('DRAG:'+py);
var dfy = py-self.mangotouch.sy;
var dfx = px-self.mangotouch.sx;
var df = Math.round(Math.sqrt(Math.pow(dfx,2)+Math.pow(dfy,2)));
if (df==0) return;
var dry = (dfy<0)?-1:1;
var drx = (dfx<0)?-1:1;
var tm = +new Date();
if (self.mangotouch.lazy) clearTimeout(self.mangotouch.lazy);
if (((tm-self.mangotouch.tm)>80)||(self.mangotouch.dry!=dry)||(self.mangotouch.drx!=drx)) {
// trace('RESET+'+(tm-self.mangotouch.tm));
self.scrollmom.stop();
self.scrollmom.reset(px,py);
self.mangotouch.sy = py;
self.mangotouch.ly = py;
self.mangotouch.sx = px;
self.mangotouch.lx = px;
self.mangotouch.dry = dry;
self.mangotouch.drx = drx;
self.mangotouch.tm = tm;
} else {
self.scrollmom.stop();
self.scrollmom.update(self.mangotouch.sx-dfx,self.mangotouch.sy-dfy);
var gap = tm - self.mangotouch.tm;
self.mangotouch.tm = tm;
// trace('MOVE:'+df+" - "+gap);
var ds = Math.max(Math.abs(self.mangotouch.ly-py),Math.abs(self.mangotouch.lx-px));
self.mangotouch.ly = py;
self.mangotouch.lx = px;
if (ds>2) {
self.mangotouch.lazy = setTimeout(function(){
// trace('END:'+ds+'+'+gap);
self.mangotouch.lazy = false;
self.mangotouch.dry = 0;
self.mangotouch.drx = 0;
self.mangotouch.tm = 0;
self.scrollmom.doMomentum(30);
},100);
}
}
};
var top = self.getScrollTop();
var lef = self.getScrollLeft();
self.mangotouch = {sy:top,ly:top,dry:0,sx:lef,lx:lef,drx:0,lazy:false,tm:0};
self.bind(self.docscroll,"scroll",self.onmangotouch);
} else {
if (cap.cantouch||self.istouchcapable||self.opt.touchbehavior||cap.hasmstouch) {