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jquery.nicescroll.js
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jquery.nicescroll.js
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/* jquery.nicescroll
-- version 3.6.7
-- copyright 2016-02-08 InuYaksa*2016
-- 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 if (typeof exports === 'object') {
// Node/CommonJS.
module.exports = factory(require('jquery'));
} else {
// Browser globals.
factory(jQuery);
}
}(function(jQuery) {
"use strict";
// globals
var domfocus = false;
var mousefocus = 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.length ? scripts[scripts.length - 1].src.split('?')[0] : '';
return (path.split('/').length > 0) ? path.split('/').slice(0, -1).join('/') + '/' : '';
}
var vendors = ['webkit','ms','moz','o'];
var setAnimationFrame = window.requestAnimationFrame || false;
var clearAnimationFrame = window.cancelAnimationFrame || false;
if (!setAnimationFrame) { // legacy detection
for (var vx in vendors) {
var v = vendors[vx];
setAnimationFrame = window[v + 'RequestAnimationFrame'];
if (setAnimationFrame) {
clearAnimationFrame = window[v + 'CancelAnimationFrame'] || window[v + 'CancelRequestAnimationFrame'];
break;
}
}
}
var ClsMutationObserver = window.MutationObserver || window.WebKitMutationObserver || false;
var _globaloptions = {
zindex: "auto",
cursoropacitymin: 0,
cursoropacitymax: 1,
cursorcolor: "#424242",
cursorwidth: "6px",
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(),
preventmultitouchscrolling: true
};
var browserdetected = false;
var getBrowserDetection = function() {
if (browserdetected) return browserdetected;
var _el = document.createElement('DIV'),
_style = _el.style,
_agent = navigator.userAgent,
_platform = navigator.platform,
d = {};
d.haspointerlock = "pointerLockElement" in document || "webkitPointerLockElement" in document || "mozPointerLockElement" in document;
d.isopera = ("opera" in window); // 12-
d.isopera12 = (d.isopera && ("getUserMedia" in navigator));
d.isoperamini = (Object.prototype.toString.call(window.operamini) === "[object OperaMini]");
d.isie = (("all" in document) && ("attachEvent" in _el) && !d.isopera); //IE10-
d.isieold = (d.isie && !("msInterpolationMode" in _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.isie11 = ("msRequestFullscreen" in _el) && (document.documentMode >= 11); // IE11+
d.isieedge = (navigator.userAgent.match(/Edge\/12\./)); // IE Edge 12
d.isie9mobile = /iemobile.9/i.test(_agent); //wp 7.1 mango
if (d.isie9mobile) d.isie9 = false;
d.isie7mobile = (!d.isie9mobile && d.isie7) && /iemobile/i.test(_agent); //wp 7.0
d.ismozilla = ("MozAppearance" in _style);
d.iswebkit = ("WebkitAppearance" in _style);
d.ischrome = ("chrome" in window);
d.ischrome38 = (d.ischrome && ("touchAction" in _style)); // behavior changed in touch emulation
d.ischrome22 = (!d.ischrome38)&&(d.ischrome && d.haspointerlock);
d.ischrome26 = (!d.ischrome38)&&(d.ischrome && ("transition" in _style)); // issue with transform detection (maintain prefix)
d.cantouch = ("ontouchstart" in document.documentElement) || ("ontouchstart" in window); // with detection for Chrome Touch Emulation
d.hasw3ctouch = (window.PointerEvent || false) && ((navigator.MaxTouchPoints > 0)||(navigator.msMaxTouchPoints > 0)); //IE11 pointer events, following W3C Pointer Events spec
d.hasmstouch = (!d.hasw3ctouch)&&(window.MSPointerEvent || false); // IE10 pointer events
d.ismac = /^mac$/i.test(_platform);
d.isios = (d.cantouch && /iphone|ipad|ipod/i.test(_platform));
d.isios4 = ((d.isios) && !("seal" in Object));
d.isios7 = ((d.isios)&&("webkitHidden" in document)); //iOS 7+
d.isios8 = ((d.isios)&&("hidden" in document)); //iOS 8+
d.isandroid = (/android/i.test(_agent));
d.haseventlistener = ("addEventListener" in _el);
d.trstyle = false;
d.hastransform = false;
d.hastranslate3d = false;
d.transitionstyle = false;
d.hastransition = false;
d.transitionend = false;
var a;
var check = ['transform', 'msTransform', 'webkitTransform', 'MozTransform', 'OTransform'];
for (a = 0; a < check.length; a++) {
if (typeof _style[check[a]] != "undefined") {
d.trstyle = check[a];
break;
}
}
d.hastransform = (!!d.trstyle);
if (d.hastransform) {
_style[d.trstyle] = "translate3d(1px,2px,3px)";
d.hastranslate3d = /translate3d/.test(_style[d.trstyle]);
}
d.transitionstyle = false;
d.prefixstyle = '';
d.transitionend = false;
check = ['transition', 'webkitTransition', 'msTransition', 'MozTransition', 'OTransition', 'OTransition', 'KhtmlTransition'];
var prefix = ['', '-webkit-', '-ms-', '-moz-', '-o-', '-o', '-khtml-'];
var evs = ['transitionend', 'webkitTransitionEnd', 'msTransitionEnd', 'transitionend', 'otransitionend', 'oTransitionEnd', 'KhtmlTransitionEnd'];
for (a = 0; a < check.length; a++) {
if (check[a] in _style) {
d.transitionstyle = check[a];
d.prefixstyle = prefix[a];
d.transitionend = evs[a];
break;
}
}
if (d.ischrome26) { // always use prefix
d.prefixstyle = prefix[1];
}
d.hastransition = (d.transitionstyle);
function detectCursorGrab() {
var lst = ['grab','-webkit-grab', '-moz-grab'];
if ((d.ischrome && !d.ischrome38) || 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];
_style.cursor = p;
if (_style.cursor == p) return p;
}
return 'url(//patriciaportfolio.googlecode.com/files/openhand.cur),n-resize'; // thank you google for custom cursor!
}
d.cursorgrabvalue = detectCursorGrab();
d.hasmousecapture = ("setCapture" in _el);
d.hasMutationObserver = (ClsMutationObserver !== false);
_el = null; //memory released
browserdetected = d;
return d;
};
var NiceScrollClass = function(myopt, me) {
var self = this;
this.version = '3.6.7';
this.name = 'nicescroll';
this.me = me;
this.opt = {
doc: $("body"),
win: false
};
$.extend(this.opt, _globaloptions); // clone opts
// 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;
// http://dev.w3.org/csswg/css-writing-modes-3/#logical-to-physical
// http://dev.w3.org/csswg/css-writing-modes-3/#svg-writing-mode
if (this.opt.rtlmode == "auto") {
var target = this.win[0] == window ? this.body : this.win;
var writingMode = target.css("writing-mode") || target.css("-webkit-writing-mode") || target.css("-ms-writing-mode") || target.css("-moz-writing-mode");
if (writingMode == "horizontal-tb" || writingMode == "lr-tb" || writingMode == "") {
this.isrtlmode = (target.css("direction") == "rtl");
this.isvertical = false;
} else {
this.isrtlmode = (writingMode == "vertical-rl" || writingMode == "tb" || writingMode == "tb-rl" || writingMode == "rl-tb");
this.isvertical = (writingMode == "vertical-rl" || writingMode == "tb" || writingMode == "tb-rl");
}
} else {
this.isrtlmode = (this.opt.rtlmode === true);
this.isvertical = false;
}
// this.checkrtlmode = false;
this.scrollrunning = false;
this.scrollmom = false;
this.observer = false; // observer div changes
this.observerremover = false; // observer on parent for remove detection
this.observerbody = false; // observer on body for position change
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.railslocked = false; // locked by resize
this.locked = false; // prevent lost of locked status sets by user
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 = {}; // style 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);
if (this.isrtlmode) {
//RTL mode with reverse horizontal axis
if (this.isvertical) {
this.hasreversehr = !(cap.iswebkit || cap.isie || cap.isie11);
} else {
this.hasreversehr = !(cap.iswebkit || (cap.isie && !cap.isie10 && !cap.isie11));
}
} else {
this.hasreversehr = false;
}
this.istouchcapable = false; // desktop devices with touch screen support
//## Check WebKit-based desktop with touch support
//## + Firefox 18 nightly build (desktop) false positive (or desktop with touch support)
if (!cap.cantouch && (cap.hasw3ctouch||cap.hasmstouch)) { // desktop device with multiple input
this.istouchcapable = true;
} else if (cap.cantouch && !cap.isios && !cap.isandroid && (cap.iswebkit || cap.ismozilla)) {
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;
}
/* deprecated
this.delayed = function(name, fn, tm, lazy) {
};
*/
/*
this.debounced = function(name, fn, tm) {
if (!self) return;
var dd = self.delaylist[name];
self.delaylist[name] = fn;
if (!dd) {
self.debouncedelayed = setTimeout(function() {
if (!self) return;
var fn = self.delaylist[name];
self.delaylist[name] = false;
fn.call(self);
}, tm);
}
};
*/
this.debounced = function(name, fn, tm) {
if (!self) return;
var dd = self.delaylist[name]||false;
if (!dd) {
fn.call(self);
self.delaylist[name] = {
h:setAnimationFrame(function(){
self.delaylist[name].fn.call(self);
self.delaylist[name] = false;
},tm)
};
}
self.delaylist[name].fn = fn;
};
var _onsync = false;
this.synched = function(name, fn) {
function requestSync() {
if (_onsync) return;
setAnimationFrame(function() {
if (!self) return;
_onsync = false;
for (var nn in self.synclist) {
var fn = self.synclist[nn];
if (fn) fn.call(self);
self.synclist[nn] = 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
var 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;
}
};
//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;
}
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/
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;
};
this.notifyScrollEvent = function(el) {
var e = document.createEvent("UIEvents");
e.initUIEvent("scroll", false, true, window, 1);
e.niceevent = true;
el.dispatchEvent(e);
};
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 setTimeout(function() {(self)&&self.docscroll.scrollTop(val)}, 1);
};
this.getScrollLeft = function() {
var val;
if (self.hasreversehr) {
if (self.detected.ismozilla) {
val = self.page.maxw - Math.abs(self.docscroll.scrollLeft());
} else {
val = self.page.maxw - self.docscroll.scrollLeft();
}
} else {
val = self.docscroll.scrollLeft();
}
return val;
};
this.setScrollLeft = function(val) {
return setTimeout(function() {
if (!self) return;
if (self.hasreversehr) {
if (self.detected.ismozilla) {
val = -(self.page.maxw - val);
} else {
val = self.page.maxw - val;
}
}
return self.docscroll.scrollLeft(val);
}, 1);
};
}
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.getDocumentScrollOffset = function() {
return {top:window.pageYOffset||document.documentElement.scrollTop,
left:window.pageXOffset||document.documentElement.scrollLeft};
}
this.getOffset = function() {
if (self.isfixed) {
var ofs = self.win.offset(); // fix Chrome auto issue (when right/bottom props only)
var scrl = self.getDocumentScrollOffset();
ofs.top-=scrl.top;
ofs.left-=scrl.left;
return ofs;
}
var ww = self.win.offset();
if (!self.viewport) return ww;
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() - (self.opt.railpadding.top + self.opt.railpadding.bottom)
});
if (self.railh) self.railh.css({ //**
width: self.win.innerWidth() - (self.opt.railpadding.left + self.opt.railpadding.right)
});
} else {
var wpos = self.getOffset();
var pos = {
top: wpos.top,
left: wpos.left - (self.opt.railpadding.left + self.opt.railpadding.right)
};
pos.top += getWidthToPixel(self.win, 'border-top-width', true);
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 (off.left) pos.left += off.left;
}
if (!self.railslocked) self.rail.css({
top: pos.top,
left: pos.left,
height: ((len) ? len.h : self.win.innerHeight()) - (self.opt.railpadding.top + self.opt.railpadding.bottom)
});
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.railslocked) {
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 - (self.opt.railpadding.top + self.opt.railpadding.bottom),
left: x,
width: self.railh.width
});
}
}
};
this.doRailClick = function(e, dbl, hr) {
var fn, pg, cur, pos;
if (self.railslocked) return;
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;
fn((cur >= pos) ? pg: -pg);// (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 = clearTimeout;
} 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) ? $("html") : self.win, {
'-ms-touch-action': 'none'
});
self.zindex = "auto";
if (!self.ispage && self.opt.zindex == "auto") {
self.zindex = getZIndex() || "auto";
} else {
self.zindex = self.opt.zindex;
}
if (!self.ispage && self.zindex != "auto") {
if (self.zindex > globalmaxzindex) globalmaxzindex = self.zindex;
}
if (self.isie && self.zindex == 0 && self.opt.zindex == "auto") { // fix IE auto == 0
self.zindex = "auto";
}
if (!self.ispage || (!cap.cantouch && !cap.isieold && !cap.isie9mobile)) {
var cont = self.docscroll;
if (self.ispage) cont = (self.haswrapper) ? self.win : self.doc;
if (!cap.isie9mobile) self.css(cont, {
'overflow-y': 'hidden'
});
if (self.ispage && cap.isie7) {
if (self.doc[0].nodeName == 'BODY') self.css($("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());
cursor.addClass('nicescroll-cursors');
self.cursor = cursor;
var rail = $(document.createElement('div'));
rail.attr('id', self.id);
rail.addClass('nicescroll-rails nicescroll-rails-vr');
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());
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.bind(zoom, "mouseenter", function() {
self.zoom.css('opacity', self.opt.cursoropacitymax);
});
self.bind(zoom, "mouseleave", function() {
self.zoom.css('opacity', self.opt.cursoropacitymin);
});
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;
var railh;
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
});
if (cap.isieold) cursor.css({'overflow':'hidden'}); //IE6 horiz scrollbar issue
cursor.wborder = parseFloat(cursor.outerWidth() - cursor.innerWidth());
cursor.addClass('nicescroll-cursors');
self.cursorh = cursor;
railh = $(document.createElement('div'));
railh.attr('id', self.id + '-hr');
railh.addClass('nicescroll-rails nicescroll-rails-hr');
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({