导航栏目块在手机端需要左右拖动—请参考以下代码
演示地址：http://demo.datouwang.com/uploads/demo/jiaoben/2017/jiaoben789/
下载地址：http://www.datouwang.com/jiaoben/951.html
把相关代码粘出来了—欢迎来copy~~
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Pragma" content="no-cache">
<meta name="viewport" content="width=device-width initial-scale=1.0 user-scalable=no">
<meta name="format-detection" content="telephone=no">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title>jquery移动端触屏左右滑动导航代码演示_大头网</title>
<link href="css/datouwang.css" rel="stylesheet" type="text/css">
</head>
<body>
<!-- 代码 开始 -->
<h2 class="htit">demo示例一</h2>
<div class="wrapper wrapper01" id="retr">
<div class="scroller">
<ul class="clearfix">
<li><a href="javascript:void(0)">全部科目</a></li>
<li><a href="javascript:void(0)">会计从业</a></li>
<li><a href="javascript:void(0)">会计职称</a></li>
<li><a href="javascript:void(0)">注会</a></li>
<li><a href="javascript:void(0)">税务师</a></li>
<li><a href="javascript:void(0)">国际证书</a></li>
<li><a href="javascript:void(0)">更多</a></li>
<li><a href="javascript:void(0)">更多注会</a></li>
<li><a href="javascript:void(0)">国际证书2</a></li>
<li><a href="javascript:void(0)">更多4</a></li>
<li><a href="javascript:void(0)">更多5</a></li>
</ul>
</div>
</div>
<h2 class="htit">demo示例二</h2>
<div class="wrapper wrapper02" id="wrapper02">
<div class="scroller">
<ul class="clearfix">
<li><a href="javascript:void(0)">全部科目</a></li>
<li><a href="javascript:void(0)">会计从业</a></li>
<li><a href="javascript:void(0)">会计职称</a></li>
<li><a href="javascript:void(0)">注会</a></li>
<li><a href="javascript:void(0)">税务师</a></li>
<li><a href="javascript:void(0)">国际证书</a></li>
<li><a href="javascript:void(0)">更多</a></li>
<li><a href="javascript:void(0)">更多注会</a></li>
<li><a href="javascript:void(0)">国际证书2</a></li>
<li><a href="javascript:void(0)">更多4</a></li>
<li><a href="javascript:void(0)">更多5</a></li>
</ul>
</div>
</div>
<h2 class="htit">demo示例三</h2>
<div class="wrapper wrapper03" id="wrapper03">
<div class="scroller">
<ul class="clearfix">
<li><a href="javascript:void(0)">全部科目</a></li>
<li><a href="javascript:void(0)">会计从业</a></li>
<li><a href="javascript:void(0)">会计职称</a></li>
<li><a href="javascript:void(0)">注会</a></li>
<li><a href="javascript:void(0)">税务师</a></li>
<li><a href="javascript:void(0)">国际证书</a></li>
<li><a href="javascript:void(0)">更多</a></li>
<li><a href="javascript:void(0)">更多注会</a></li>
<li><a href="javascript:void(0)">国际证书2</a></li>
<li><a href="javascript:void(0)">大头网</a></li>
<li><a href="javascript:void(0)">更多5</a></li>
</ul>
</div>
</div>
<h2 class="htit">demo示例四</h2>
<div class="wrapper wrapper04" id="sass">
<div class="scroller">
<ul class="clearfix">
<li><a href="javascript:void(0)">全部科目</a></li>
<li><a href="javascript:void(0)">会计从业</a></li>
<li><a href="javascript:void(0)">会计职称</a></li>
<li><a href="javascript:void(0)">注会</a></li>
<li><a href="javascript:void(0)">税务师</a></li>
<li><a href="javascript:void(0)">国际证书</a></li>
<li><a href="javascript:void(0)">更多</a></li>
<li><a href="javascript:void(0)">更多注会</a></li>
<li><a href="javascript:void(0)">国际证书2</a></li>
<li><a href="javascript:void(0)">更多4</a></li>
<li><a href="javascript:void(0)">更多5</a></li>
</ul>
</div>
</div>
<h2 class="htit">demo示例五</h2>
<div class="wrapper02" id="demo05">
<div class="scroller">
<ul class="clearfix">
<li><a href="javascript:void(0)">全部科目</a></li>
<li><a href="javascript:void(0)">会计从业</a></li>
<li><a href="javascript:void(0)">会计职称</a></li>
<li><a href="javascript:void(0)">注会</a></li>
<li><a href="javascript:void(0)">税务师</a></li>
<li><a href="javascript:void(0)">国际证书</a></li>
<li><a href="javascript:void(0)">更多</a></li>
<li><a href="javascript:void(0)">更多注会</a></li>
<li><a href="javascript:void(0)">国际证书2</a></li>
<li><a href="javascript:void(0)">更多4</a></li>
<li><a href="javascript:void(0)">更多5</a></li>
</ul>
</div>
</div>
<h2 class="htit">demo示例六</h2>
<div class="wrapper02" id="demo06">
<div class="scroller">
<ul class="clearfix">
<li><a href="javascript:void(0)">北京</a></li>
<li><a href="javascript:void(0)">上海</a></li>
<li><a href="javascript:void(0)">广州</a></li>
<li><a href="javascript:void(0)">深证</a></li>
<li><a href="javascript:void(0)">杭州</a></li>
<li><a href="javascript:void(0)">武汉</a></li>
<li><a href="javascript:void(0)">天津</a></li>
<li><a href="javascript:void(0)">郑州</a></li>
<li><a href="javascript:void(0)">海口</a></li>
<li><a href="javascript:void(0)">郑州</a></li>
<li><a href="javascript:void(0)">长春</a></li>
<li><a href="javascript:void(0)">长沙</a></li>
<li><a href="javascript:void(0)">南京</a></li>
<li><a href="javascript:void(0)">西安</a></li>
</ul>
</div>
</div>
<div style="padding:1rem .4rem;line-height:.6rem;font-size:.34rem">
参数说明：<br />
className:'cur' //当前选中点击元素的class类名<br />
clickScrollTime:300 //点击后滑动时间<br />
duibiScreenWidth:0.4 //单位以rem为准，默认为0.4rem<br />
fingerClick:0 //目标第0或1个选项触发必须每一项长度一致，方可用此项<br />
endClickScroll:function(thisObj){}//回调函数<br />
</div>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/flexible.js"></script>
<script type="text/javascript" src="js/iscroll.js"></script>
<script type="text/javascript" src="js/navbarscroll.js"></script>
<script type="text/javascript">
$(function(){
//demo示例一到四 通过lass调取，一句可以搞定，用于页面中可能有多个导航的情况
$('.wrapper').navbarscroll();
//demo示例五 通过id调取
$('#demo05').navbarscroll({
defaultSelect:6
endClickScroll:function(obj){
console.log(obj.text())
}
});
//demo示例六 通过id调取
$('#demo06').navbarscroll({
defaultSelect:3
scrollerWidth:6
fingerClick:1
endClickScroll:function(obj){
console.log(obj.text())
}
});
});
</script>
<!-- 代码 结束 -->
<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
<p>来源：<a href="http://www.datouwang.com/" target="_blank">大头网</a></p>
<p>转载请注明出处，此代码仅供学习交流，请勿用于商业用途。</p>
<p><script src="http://www.datouwang.com/img/js/demo_ad.js"></script><center style="display:none"><script src="http://www.datouwang.com/img/js/demo_tj.js"></script></center></p>
</div>
</body>
</html>
css/datouwang.css
/* DaTouWang URL: www.datouwang.com */
html{color:#000;overflow-y:scroll;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}
html *{outline:0;-webkit-text-size-adjust:none;-webkit-tap-highlight-color:rgba(0000)}
body {background:#FFF;color:#4a4f5a;font: 400 14px/1.5 "΢ÈíÑźÚ"HelveticaSTHeitiDroid Sans Fallback;-webkit-text-size-adjust: 100%;-ms-text-size-adjust: 100%;-webkit-tap-highlight-color:rgba(0000);}
bodydivdldtddulollih1h2h3h4h5h6precodeformfieldsetlegendinputtextareapblockquotethtdhrbuttonarticleasidedetailsfigcaptionfigurefooterheaderhgroupmenunavsection{margin:0;padding:0}
inputselecttextarea{font-size:100%}
articleasidefooterheadernavsectionaudiocanvasvideoimg {display: block;}
table{border-collapse:collapse;border-spacing:0}
fieldsetimg{border:0}
abbracronym{border:0;font-variant:normal}
del{text-decoration:line-through}
addresscaptioncitecodedfnemthvar{font-style:normal;font-weight:normal}
olul{list-style:none}
captionth{text-align:left}
h1h2h3h4h5h6{font-size:100%;font-weight:normal}
q:beforeq:after{content:''}
button{outline:0;border:none;}
a:hover{text-decoration:none}
insa{text-decoration:none}
textarea {resize: none;}
iframeimg {border:0;}
img{display:block;width:100%;}
ulol {list-style:none;}
inputselecttextarea {outline: 0;-webkit-user-modify: read-write-plaintext-only;}
input {-webkit-appearance: none;}
.pr{position:relative;}
.abs{position: absolute}
.fl{float:left;display:inline-block;}
.fr{float:right;display:inline-block;}
.clearfix:after{content:".";display:block;height:0;clear: both;visibility:hidden;}
.clearfix{*zoom:1;}
.wrap{min-width: 320px;max-width:768px;margin:0 auto;overflow:hidden;position:relative;}
.htit{line-height:1rem;padding:0 .3rem;color:#ff8e2e;font-size: .4rem;margin:1rem 0 .4rem 0}
.wrapper01 {position:relative;height: 3em;width: 100%;overflow: hidden;margin:0 auto;border-bottom:1px solid #ccc}
.wrapper01 .scroller {position:absolute}
.wrapper01 .scroller li {height: 1.5em;color:#333;float: left;line-height: 1.5em;font-size: 1.5em;text-align: center}
.wrapper01 .scroller li a{color:#333;display:block;margin:0 .3rem}
.wrapper01 .scroller li.cur a{color:#1cbb9b;}
.wrapper02 {position:relative;height: 1rem;width: 100%;overflow: hidden;margin:0 auto;background:#ddd}
.wrapper02 .scroller {position:absolute}
.wrapper02 .scroller li {height: 1rem;color:#333;float: left;line-height: 1rem;font-size: .4rem;text-align: center}
.wrapper02 .scroller li a{color:#333;display:block;margin:0 .3rem}
.wrapper02 .scroller li.cur{background:#1cbb9b}
.wrapper02 .scroller li.cur a{color:#fff;}
.wrapper03 {position:relative;height: 1rem;width: 100%;overflow: hidden;margin:0 auto;border-bottom:1px solid #ccc}
.wrapper03 .scroller {position:absolute}
.wrapper03 .scroller li {height: 1rem;color:#333;float: left;line-height: 1rem;font-size: .4rem;text-align: center}
.wrapper03 .scroller li a{color:#333;display:block;margin:0 .3rem;padding:0 .1rem}
.wrapper03 .scroller li.cur a{color:#1cbb9b;height:.9rem;border-bottom:.1rem solid #1cbb9b}
.wrapper04 {position:relative;height: 1rem;width: 80%;overflow: hidden;margin:0 auto;background:#ddd}
.wrapper04 .scroller {position:absolute}
.wrapper04 .scroller li {height: 1rem;color:#333;float: left;line-height: 1rem;font-size: .4rem;text-align: center}
.wrapper04 .scroller li a{color:#333;display:block;margin:0 .3rem}
.wrapper04 .scroller li.cur{background:#1cbb9b}
.wrapper04 .scroller li.cur a{color:#fff;}
js/jquery.min.js 引用替换就ok
https://code.jquery.com/jquery-3.2.1.min.js
js/flexible.js
/* DaTouWang URL: www.datouwang.com */
;(function(win lib) {
var doc = win.document;
var docEl = doc.documentElement;
var metaEl = doc.querySelector('meta[name="viewport"]');
var flexibleEl = doc.querySelector('meta[name="flexible"]');
var dpr = 0;
var scale = 0;
var tid;
var flexible = lib.flexible || (lib.flexible = {});
if (metaEl) {
console.warn('将根据已有的meta标签来设置缩放比例');
var match = metaEl.getAttribute('content').match(/initial-scale=([d.]+)/);
if (match) {
scale = parseFloat(match[1]);
dpr = parseInt(1 / scale);
}
} else if (flexibleEl) {
var content = flexibleEl.getAttribute('content');
if (content) {
var initialDpr = content.match(/initial-dpr=([d.]+)/);
var maximumDpr = content.match(/maximum-dpr=([d.]+)/);
if (initialDpr) {
dpr = parseFloat(initialDpr[1]);
scale = parseFloat((1 / dpr).toFixed(2));
}
if (maximumDpr) {
dpr = parseFloat(maximumDpr[1]);
scale = parseFloat((1 / dpr).toFixed(2));
}
}
}
if (!dpr && !scale) {
var isAndroid = win.navigator.appVersion.match(/android/gi);
var isIPhone = win.navigator.appVersion.match(/iphone/gi);
var devicePixelRatio = win.devicePixelRatio;
if (isIPhone) {
// iOS下，对于2和3的屏，用2倍的方案，其余的用1倍方案
if (devicePixelRatio >= 3 && (!dpr || dpr >= 3)) {
dpr = 3;
} else if (devicePixelRatio >= 2 && (!dpr || dpr >= 2)){
dpr = 2;
} else {
dpr = 1;
}
} else {
// 其他设备下，仍旧使用1倍的方案
dpr = 1;
}
scale = 1 / dpr;
}
docEl.setAttribute('data-dpr' dpr);
if (!metaEl) {
metaEl = doc.createElement('meta');
metaEl.setAttribute('name' 'viewport');
metaEl.setAttribute('content' 'initial-scale=' + scale + ' maximum-scale=' + scale + ' minimum-scale=' + scale + ' user-scalable=no');
if (docEl.firstElementChild) {
docEl.firstElementChild.appendChild(metaEl);
} else {
var wrap = doc.createElement('div');
wrap.appendChild(metaEl);
doc.write(wrap.innerHTML);
}
}
function refreshRem(){
var width = docEl.getBoundingClientRect().width;
if (width / dpr > 768) {
width = 768 * dpr;
}
var rem = width / 10;
docEl.style.fontSize = rem + 'px';
flexible.rem = win.rem = rem;
}
win.addEventListener('resize' function() {
clearTimeout(tid);
tid = setTimeout(refreshRem 300);
} false);
win.addEventListener('pageshow' function(e) {
if (e.persisted) {
clearTimeout(tid);
tid = setTimeout(refreshRem 300);
}
} false);
if (doc.readyState === 'complete') {
doc.body.style.fontSize = 12 * dpr + 'px';
} else {
doc.addEventListener('DOMContentLoaded' function(e) {
doc.body.style.fontSize = 12 * dpr + 'px';
} false);
}
refreshRem();
flexible.dpr = win.dpr = dpr;
flexible.refreshRem = refreshRem;
flexible.rem2px = function(d) {
var val = parseFloat(d) * this.rem;
if (typeof d === 'string' && d.match(/rem$/)) {
val += 'px';
}
return val;
}
flexible.px2rem = function(d) {
var val = parseFloat(d) / this.rem;
if (typeof d === 'string' && d.match(/px$/)) {
val += 'rem';
}
return val;
}
})(window window['lib'] || (window['lib'] = {}));
js/iscroll.js
/* DaTouWang URL: www.datouwang.com */
(function (window document Math) {
var rAF = window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function (callback) { window.setTimeout(callback 1000 / 60); };
var utils = (function () {
var me = {};
var _elementStyle = document.createElement('div').style;
var _vendor = (function () {
var vendors = ['t' 'webkitT' 'MozT' 'msT' 'OT']
transform
i = 0
l = vendors.length;
for ( ; i < l; i++ ) {
transform = vendors[i] + 'ransform';
if ( transform in _elementStyle ) return vendors[i].substr(0 vendors[i].length-1);
}
return false;
})();
function _prefixStyle (style) {
if ( _vendor === false ) return false;
if ( _vendor === '' ) return style;
return _vendor + style.charAt(0).toUpperCase() + style.substr(1);
}
me.getTime = Date.now || function getTime () { return new Date().getTime(); };
me.extend = function (target obj) {
for ( var i in obj ) {
target[i] = obj[i];
}
};
me.addEvent = function (el type fn capture) {
el.addEventListener(type fn !!capture);
};
me.removeEvent = function (el type fn capture) {
el.removeEventListener(type fn !!capture);
};
me.prefixPointerEvent = function (pointerEvent) {
return window.MSPointerEvent ?
'MSPointer' + pointerEvent.charAt(7).toUpperCase() + pointerEvent.substr(8):
pointerEvent;
};
me.momentum = function (current start time lowerMargin wrapperSize deceleration) {
var distance = current - start
speed = Math.abs(distance) / time
destination
duration;
deceleration = deceleration === undefined ? 0.0006 : deceleration;
destination = current + ( speed * speed ) / ( 2 * deceleration ) * ( distance < 0 ? -1 : 1 );
duration = speed / deceleration;
if ( destination < lowerMargin ) {
destination = wrapperSize ? lowerMargin - ( wrapperSize / 2.5 * ( speed / 8 ) ) : lowerMargin;
distance = Math.abs(destination - current);
duration = distance / speed;
} else if ( destination > 0 ) {
destination = wrapperSize ? wrapperSize / 2.5 * ( speed / 8 ) : 0;
distance = Math.abs(current) + destination;
duration = distance / speed;
}
return {
destination: Math.round(destination)
duration: duration
};
};
var _transform = _prefixStyle('transform');
me.extend(me {
hasTransform: _transform !== false
hasPerspective: _prefixStyle('perspective') in _elementStyle
hasTouch: 'ontouchstart' in window
hasPointer: !!(window.PointerEvent || window.MSPointerEvent) // IE10 is prefixed
hasTransition: _prefixStyle('transition') in _elementStyle
});
/*
This should find all Android browsers lower than build 535.19 (both stock browser and webview)
- galaxy S2 is ok
- 2.3.6 : `AppleWebKit/533.1 (KHTML like Gecko) Version/4.0 Mobile Safari/533.1`
- 4.0.4 : `AppleWebKit/534.30 (KHTML like Gecko) Version/4.0 Mobile Safari/534.30`
- galaxy S3 is badAndroid (stock brower webview)
`AppleWebKit/534.30 (KHTML like Gecko) Version/4.0 Mobile Safari/534.30`
- galaxy S4 is badAndroid (stock brower webview)
`AppleWebKit/534.30 (KHTML like Gecko) Version/4.0 Mobile Safari/534.30`
- galaxy S5 is OK
`AppleWebKit/537.36 (KHTML like Gecko) Version/4.0 Mobile Safari/537.36 (Chrome/)`
- galaxy S6 is OK
`AppleWebKit/537.36 (KHTML like Gecko) Version/4.0 Mobile Safari/537.36 (Chrome/)`
*/
me.isBadAndroid = (function() {
var appVersion = window.navigator.appVersion;
// Android browser is not a chrome browser.
if (/Android/.test(appVersion) && !(/Chrome/d/.test(appVersion))) {
var safariVersion = appVersion.match(/Safari/(d+.d)/);
if(safariVersion && typeof safariVersion === "object" && safariVersion.length >= 2) {
return parseFloat(safariVersion[1]) < 535.19;
} else {
return true;
}
} else {
return false;
}
})();
me.extend(me.style = {} {
transform: _transform
transitionTimingFunction: _prefixStyle('transitionTimingFunction')
transitionDuration: _prefixStyle('transitionDuration')
transitionDelay: _prefixStyle('transitionDelay')
transformOrigin: _prefixStyle('transformOrigin')
});
me.hasClass = function (e c) {
var re = new RegExp("(^|s)" + c + "(s|$)");
return re.test(e.className);
};
me.addClass = function (e c) {
if ( me.hasClass(e c) ) {
return;
}
var newclass = e.className.split(' ');
newclass.push(c);
e.className = newclass.join(' ');
};
me.removeClass = function (e c) {
if ( !me.hasClass(e c) ) {
return;
}
var re = new RegExp("(^|s)" + c + "(s|$)" 'g');
e.className = e.className.replace(re ' ');
};
me.offset = function (el) {
var left = -el.offsetLeft
top = -el.offsetTop;
// jshint -W084
while (el = el.offsetParent) {
left -= el.offsetLeft;
top -= el.offsetTop;
}
// jshint +W084
return {
left: left
top: top
};
};
me.preventDefaultException = function (el exceptions) {
for ( var i in exceptions ) {
if ( exceptions[i].test(el[i]) ) {
return true;
}
}
return false;
};
me.extend(me.eventType = {} {
touchstart: 1
touchmove: 1
touchend: 1
mousedown: 2
mousemove: 2
mouseup: 2
pointerdown: 3
pointermove: 3
pointerup: 3
MSPointerDown: 3
MSPointerMove: 3
MSPointerUp: 3
});
me.extend(me.ease = {} {
quadratic: {
style: 'cubic-bezier(0.25 0.46 0.45 0.94)'
fn: function (k) {
return k * ( 2 - k );
}
}
circular: {
style: 'cubic-bezier(0.1 0.57 0.1 1)' // Not properly "circular" but this looks better it should be (0.075 0.82 0.165 1)
fn: function (k) {
return Math.sqrt( 1 - ( --k * k ) );
}
}
back: {
style: 'cubic-bezier(0.175 0.885 0.32 1.275)'
fn: function (k) {
var b = 4;
return ( k = k - 1 ) * k * ( ( b + 1 ) * k + b ) + 1;
}
}
bounce: {
style: ''
fn: function (k) {
if ( ( k /= 1 ) < ( 1 / 2.75 ) ) {
return 7.5625 * k * k;
} else if ( k < ( 2 / 2.75 ) ) {
return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75;
} else if ( k < ( 2.5 / 2.75 ) ) {
return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375;
} else {
return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375;
}
}
}
elastic: {
style: ''
fn: function (k) {
var f = 0.22
e = 0.4;
if ( k === 0 ) { return 0; }
if ( k == 1 ) { return 1; }
return ( e * Math.pow( 2 - 10 * k ) * Math.sin( ( k - f / 4 ) * ( 2 * Math.PI ) / f ) + 1 );
}
}
});
me.tap = function (e eventName) {
var ev = document.createEvent('Event');
ev.initEvent(eventName true true);
ev.pageX = e.pageX;
ev.pageY = e.pageY;
e.target.dispatchEvent(ev);
};
me.click = function (e) {
var target = e.target
ev;
if ( !(/(SELECT|INPUT|TEXTAREA)/i).test(target.tagName) ) {
// https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/initMouseEvent
// initMouseEvent is deprecated.
ev = document.createEvent(window.MouseEvent ? 'MouseEvents' : 'Event');
ev.initEvent('click' true true);
ev.view = e.view || window;
ev.detail = 1;
ev.screenX = target.screenX || 0;
ev.screenY = target.screenY || 0;
ev.clientX = target.clientX || 0;
ev.clientY = target.clientY || 0;
ev.ctrlKey = !!e.ctrlKey;
ev.altKey = !!e.altKey;
ev.shiftKey = !!e.shiftKey;
ev.metaKey = !!e.metaKey;
ev.button = 0;
ev.relatedTarget = null;
ev._constructed = true;
target.dispatchEvent(ev);
}
};
return me;
})();
function IScroll (el options) {
this.wrapper = typeof el == 'string' ? document.querySelector(el) : el;
this.scroller = this.wrapper.children[0];
this.scrollerStyle = this.scroller.style; // cache style for better performance
this.options = {
resizeScrollbars: true
mouseWheelSpeed: 20
snapThreshold: 0.334
// INSERT POINT: OPTIONS
disablePointer : !utils.hasPointer
disableTouch : utils.hasPointer || !utils.hasTouch
disableMouse : utils.hasPointer || utils.hasTouch
startX: 0
startY: 0
scrollY: true
directionLockThreshold: 5
momentum: true
bounce: true
bounceTime: 600
bounceEasing: ''
preventDefault: true
preventDefaultException: { tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT)$/ }
HWCompositing: true
useTransition: true
useTransform: true
bindToWrapper: typeof window.onmousedown === "undefined"
};
for ( var i in options ) {
this.options[i] = options[i];
}
// Normalize options
this.translateZ = this.options.HWCompositing && utils.hasPerspective ? ' translateZ(0)' : '';
this.options.useTransition = utils.hasTransition && this.options.useTransition;
this.options.useTransform = utils.hasTransform && this.options.useTransform;
this.options.eventPassthrough = this.options.eventPassthrough === true ? 'vertical' : this.options.eventPassthrough;
this.options.preventDefault = !this.options.eventPassthrough && this.options.preventDefault;
// If you want eventPassthrough I have to lock one of the axes
this.options.scrollY = this.options.eventPassthrough == 'vertical' ? false : this.options.scrollY;
this.options.scrollX = this.options.eventPassthrough == 'horizontal' ? false : this.options.scrollX;
// With eventPassthrough we also need lockDirection mechanism
this.options.freeScroll = this.options.freeScroll && !this.options.eventPassthrough;
this.options.directionLockThreshold = this.options.eventPassthrough ? 0 : this.options.directionLockThreshold;
this.options.bounceEasing = typeof this.options.bounceEasing == 'string' ? utils.ease[this.options.bounceEasing] || utils.ease.circular : this.options.bounceEasing;
this.options.resizePolling = this.options.resizePolling === undefined ? 60 : this.options.resizePolling;
if ( this.options.tap === true ) {
this.options.tap = 'tap';
}
// https://github.com/cubiq/iscroll/issues/1029
if (!this.options.useTransition && !this.options.useTransform) {
if(!(/relative|absolute/i).test(this.scrollerStyle.position)) {
this.scrollerStyle.position = "relative";
}
}
if ( this.options.shrinkScrollbars == 'scale' ) {
this.options.useTransition = false;
}
this.options.invertWheelDirection = this.options.invertWheelDirection ? -1 : 1;
// INSERT POINT: NORMALIZATION
// Some defaults
this.x = 0;
this.y = 0;
this.directionX = 0;
this.directionY = 0;
this._events = {};
// INSERT POINT: DEFAULTS
this._init();
this.refresh();
this.scrollTo(this.options.startX this.options.startY);
this.enable();
}
IScroll.prototype = {
version: '5.2.0'
_init: function () {
this._initEvents();
if ( this.options.scrollbars || this.options.indicators ) {
this._initIndicators();
}
if ( this.options.mouseWheel ) {
this._initWheel();
}
if ( this.options.snap ) {
this._initSnap();
}
if ( this.options.keyBindings ) {
this._initKeys();
}
// INSERT POINT: _init
}
destroy: function () {
this._initEvents(true);
clearTimeout(this.resizeTimeout);
this.resizeTimeout = null;
this._execEvent('destroy');
}
_transitionEnd: function (e) {
if ( e.target != this.scroller || !this.isInTransition ) {
return;
}
this._transitionTime();
if ( !this.resetPosition(this.options.bounceTime) ) {
this.isInTransition = false;
this._execEvent('scrollEnd');
}
}
_start: function (e) {
// React to left mouse button only
if ( utils.eventType[e.type] != 1 ) {
// for button property
// http://unixpapa.com/js/mouse.html
var button;
if (!e.which) {
/* IE case */
button = (e.button < 2) ? 0 :
((e.button == 4) ? 1 : 2);
} else {
/* All others */
button = e.button;
}
if ( button !== 0 ) {
return;
}
}
if ( !this.enabled || (this.initiated && utils.eventType[e.type] !== this.initiated) ) {
return;
}
if ( this.options.preventDefault && !utils.isBadAndroid && !utils.preventDefaultException(e.target this.options.preventDefaultException) ) {
e.preventDefault();
}
var point = e.touches ? e.touches[0] : e
pos;
this.initiated = utils.eventType[e.type];
this.moved = false;
this.distX = 0;
this.distY = 0;
this.directionX = 0;
this.directionY = 0;
this.directionLocked = 0;
this.startTime = utils.getTime();
if ( this.options.useTransition && this.isInTransition ) {
this._transitionTime();
this.isInTransition = false;
pos = this.getComputedPosition();
this._translate(Math.round(pos.x) Math.round(pos.y));
this._execEvent('scrollEnd');
} else if ( !this.options.useTransition && this.isAnimating ) {
this.isAnimating = false;
this._execEvent('scrollEnd');
}
this.startX = this.x;
this.startY = this.y;
this.absStartX = this.x;
this.absStartY = this.y;
this.pointX = point.pageX;
this.pointY = point.pageY;
this._execEvent('beforeScrollStart');
}
_move: function (e) {
if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) {
return;
}
if ( this.options.preventDefault ) { // increases performance on Android? TODO: check!
e.preventDefault();
}
var point = e.touches ? e.touches[0] : e
deltaX = point.pageX - this.pointX
deltaY = point.pageY - this.pointY
timestamp = utils.getTime()
newX newY
absDistX absDistY;
this.pointX = point.pageX;
this.pointY = point.pageY;
this.distX += deltaX;
this.distY += deltaY;
absDistX = Math.abs(this.distX);
absDistY = Math.abs(this.distY);
// We need to move at least 10 pixels for the scrolling to initiate
if ( timestamp - this.endTime > 300 && (absDistX < 10 && absDistY < 10) ) {
return;
}
// If you are scrolling in one direction lock the other
if ( !this.directionLocked && !this.options.freeScroll ) {
if ( absDistX > absDistY + this.options.directionLockThreshold ) {
this.directionLocked = 'h'; // lock horizontally
} else if ( absDistY >= absDistX + this.options.directionLockThreshold ) {
this.directionLocked = 'v'; // lock vertically
} else {
this.directionLocked = 'n'; // no lock
}
}
if ( this.directionLocked == 'h' ) {
if ( this.options.eventPassthrough == 'vertical' ) {
e.preventDefault();
} else if ( this.options.eventPassthrough == 'horizontal' ) {
this.initiated = false;
return;
}
deltaY = 0;
} else if ( this.directionLocked == 'v' ) {
if ( this.options.eventPassthrough == 'horizontal' ) {
e.preventDefault();
} else if ( this.options.eventPassthrough == 'vertical' ) {
this.initiated = false;
return;
}
deltaX = 0;
}
deltaX = this.hasHorizontalScroll ? deltaX : 0;
deltaY = this.hasVerticalScroll ? deltaY : 0;
newX = this.x + deltaX;
newY = this.y + deltaY;
// Slow down if outside of the boundaries
if ( newX > 0 || newX < this.maxScrollX ) {
newX = this.options.bounce ? this.x + deltaX / 3 : newX > 0 ? 0 : this.maxScrollX;
}
if ( newY > 0 || newY < this.maxScrollY ) {
newY = this.options.bounce ? this.y + deltaY / 3 : newY > 0 ? 0 : this.maxScrollY;
}
this.directionX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0;
this.directionY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0;
if ( !this.moved ) {
this._execEvent('scrollStart');
}
this.moved = true;
this._translate(newX newY);
/* REPLACE START: _move */
if ( timestamp - this.startTime > 300 ) {
this.startTime = timestamp;
this.startX = this.x;
this.startY = this.y;
}
/* REPLACE END: _move */
}
_end: function (e) {
if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) {
return;
}
if ( this.options.preventDefault && !utils.preventDefaultException(e.target this.options.preventDefaultException) ) {
e.preventDefault();
}
var point = e.changedTouches ? e.changedTouches[0] : e
momentumX
momentumY
duration = utils.getTime() - this.startTime
newX = Math.round(this.x)
newY = Math.round(this.y)
distanceX = Math.abs(newX - this.startX)
distanceY = Math.abs(newY - this.startY)
time = 0
easing = '';
this.isInTransition = 0;
this.initiated = 0;
this.endTime = utils.getTime();
// reset if we are outside of the boundaries
if ( this.resetPosition(this.options.bounceTime) ) {
return;
}
this.scrollTo(newX newY); // ensures that the last position is rounded
// we scrolled less than 10 pixels
if ( !this.moved ) {
if ( this.options.tap ) {
utils.tap(e this.options.tap);
}
if ( this.options.click ) {
utils.click(e);
}
this._execEvent('scrollCancel');
return;
}
if ( this._events.flick && duration < 200 && distanceX < 100 && distanceY < 100 ) {
this._execEvent('flick');
return;
}
// start momentum animation if needed
if ( this.options.momentum && duration < 300 ) {
momentumX = this.hasHorizontalScroll ? utils.momentum(this.x this.startX duration this.maxScrollX this.options.bounce ? this.wrapperWidth : 0 this.options.deceleration) : { destination: newX duration: 0 };
momentumY = this.hasVerticalScroll ? utils.momentum(this.y this.startY duration this.maxScrollY this.options.bounce ? this.wrapperHeight : 0 this.options.deceleration) : { destination: newY duration: 0 };
newX = momentumX.destination;
newY = momentumY.destination;
time = Math.max(momentumX.duration momentumY.duration);
this.isInTransition = 1;
}
if ( this.options.snap ) {
var snap = this._nearestSnap(newX newY);
this.currentPage = snap;
time = this.options.snapSpeed || Math.max(
Math.max(
Math.min(Math.abs(newX - snap.x) 1000)
Math.min(Math.abs(newY - snap.y) 1000)
) 300);
newX = snap.x;
newY = snap.y;
this.directionX = 0;
this.directionY = 0;
easing = this.options.bounceEasing;
}
// INSERT POINT: _end
if ( newX != this.x || newY != this.y ) {
// change easing function when scroller goes out of the boundaries
if ( newX > 0 || newX < this.maxScrollX || newY > 0 || newY < this.maxScrollY ) {
easing = utils.ease.quadratic;
}
this.scrollTo(newX newY time easing);
return;
}
this._execEvent('scrollEnd');
}
_resize: function () {
var that = this;
clearTimeout(this.resizeTimeout);
this.resizeTimeout = setTimeout(function () {
that.refresh();
} this.options.resizePolling);
}
resetPosition: function (time) {
var x = this.x
y = this.y;
time = time || 0;
if ( !this.hasHorizontalScroll || this.x > 0 ) {
x = 0;
} else if ( this.x < this.maxScrollX ) {
x = this.maxScrollX;
}
if ( !this.hasVerticalScroll || this.y > 0 ) {
y = 0;
} else if ( this.y < this.maxScrollY ) {
y = this.maxScrollY;
}
if ( x == this.x && y == this.y ) {
return false;
}
this.scrollTo(x y time this.options.bounceEasing);
return true;
}
disable: function () {
this.enabled = false;
}
enable: function () {
this.enabled = true;
}
refresh: function () {
var rf = this.wrapper.offsetHeight; // Force reflow
this.wrapperWidth = this.wrapper.clientWidth;
this.wrapperHeight = this.wrapper.clientHeight;
/* REPLACE START: refresh */
this.scrollerWidth = this.scroller.offsetWidth;
this.scrollerHeight = this.scroller.offsetHeight;
this.maxScrollX = this.wrapperWidth - this.scrollerWidth;
this.maxScrollY = this.wrapperHeight - this.scrollerHeight;
/* REPLACE END: refresh */
this.hasHorizontalScroll = this.options.scrollX && this.maxScrollX < 0;
this.hasVerticalScroll = this.options.scrollY && this.maxScrollY < 0;
if ( !this.hasHorizontalScroll ) {
this.maxScrollX = 0;
this.scrollerWidth = this.wrapperWidth;
}
if ( !this.hasVerticalScroll ) {
this.maxScrollY = 0;
this.scrollerHeight = this.wrapperHeight;
}
this.endTime = 0;
this.directionX = 0;
this.directionY = 0;
this.wrapperOffset = utils.offset(this.wrapper);
this._execEvent('refresh');
this.resetPosition();
// INSERT POINT: _refresh
}
on: function (type fn) {
if ( !this._events[type] ) {
this._events[type] = [];
}
this._events[type].push(fn);
}
off: function (type fn) {
if ( !this._events[type] ) {
return;
}
var index = this._events[type].indexOf(fn);
if ( index > -1 ) {
this._events[type].splice(index 1);
}
}
_execEvent: function (type) {
if ( !this._events[type] ) {
return;
}
var i = 0
l = this._events[type].length;
if ( !l ) {
return;
}
for ( ; i < l; i++ ) {
this._events[type][i].apply(this [].slice.call(arguments 1));
}
}
scrollBy: function (x y time easing) {
x = this.x + x;
y = this.y + y;
time = time || 0;
this.scrollTo(x y time easing);
}
scrollTo: function (x y time easing) {
easing = easing || utils.ease.circular;
this.isInTransition = this.options.useTransition && time > 0;
var transitionType = this.options.useTransition && easing.style;
if ( !time || transitionType ) {
if(transitionType) {
this._transitionTimingFunction(easing.style);
this._transitionTime(time);
}
this._translate(x y);
} else {
this._animate(x y time easing.fn);
}
}
scrollToElement: function (el time offsetX offsetY easing) {
el = el.nodeType ? el : this.scroller.querySelector(el);
if ( !el ) {
return;
}
var pos = utils.offset(el);
pos.left -= this.wrapperOffset.left;
pos.top -= this.wrapperOffset.top;
// if offsetX/Y are true we center the element to the screen
if ( offsetX === true ) {
offsetX = Math.round(el.offsetWidth / 2 - this.wrapper.offsetWidth / 2);
}
if ( offsetY === true ) {
offsetY = Math.round(el.offsetHeight / 2 - this.wrapper.offsetHeight / 2);
}
pos.left -= offsetX || 0;
pos.top -= offsetY || 0;
pos.left = pos.left > 0 ? 0 : pos.left < this.maxScrollX ? this.maxScrollX : pos.left;
pos.top = pos.top > 0 ? 0 : pos.top < this.maxScrollY ? this.maxScrollY : pos.top;
time = time === undefined || time === null || time === 'auto' ? Math.max(Math.abs(this.x-pos.left) Math.abs(this.y-pos.top)) : time;
this.scrollTo(pos.left pos.top time easing);
}
_transitionTime: function (time) {
if (!this.options.useTransition) {
return;
}
time = time || 0;
var durationProp = utils.style.transitionDuration;
if(!durationProp) {
return;
}
this.scrollerStyle[durationProp] = time + 'ms';
if ( !time && utils.isBadAndroid ) {
this.scrollerStyle[durationProp] = '0.0001ms';
// remove 0.0001ms
var self = this;
rAF(function() {
if(self.scrollerStyle[durationProp] === '0.0001ms') {
self.scrollerStyle[durationProp] = '0s';
}
});
}
if ( this.indicators ) {
for ( var i = this.indicators.length; i--; ) {
this.indicators[i].transitionTime(time);
}
}
// INSERT POINT: _transitionTime
}
_transitionTimingFunction: function (easing) {
this.scrollerStyle[utils.style.transitionTimingFunction] = easing;
if ( this.indicators ) {
for ( var i = this.indicators.length; i--; ) {
this.indicators[i].transitionTimingFunction(easing);
}
}
// INSERT POINT: _transitionTimingFunction
}
_translate: function (x y) {
if ( this.options.useTransform ) {
/* REPLACE START: _translate */
this.scrollerStyle[utils.style.transform] = 'translate(' + x + 'px' + y + 'px)' + this.translateZ;
/* REPLACE END: _translate */
} else {
x = Math.round(x);
y = Math.round(y);
this.scrollerStyle.left = x + 'px';
this.scrollerStyle.top = y + 'px';
}
this.x = x;
this.y = y;
if ( this.indicators ) {
for ( var i = this.indicators.length; i--; ) {
this.indicators[i].updatePosition();
}
}
// INSERT POINT: _translate
}
_initEvents: function (remove) {
var eventType = remove ? utils.removeEvent : utils.addEvent
target = this.options.bindToWrapper ? this.wrapper : window;
eventType(window 'orientationchange' this);
eventType(window 'resize' this);
if ( this.options.click ) {
eventType(this.wrapper 'click' this true);
}
if ( !this.options.disableMouse ) {
eventType(this.wrapper 'mousedown' this);
eventType(target 'mousemove' this);
eventType(target 'mousecancel' this);
eventType(target 'mouseup' this);
}
if ( utils.hasPointer && !this.options.disablePointer ) {
eventType(this.wrapper utils.prefixPointerEvent('pointerdown') this);
eventType(target utils.prefixPointerEvent('pointermove') this);
eventType(target utils.prefixPointerEvent('pointercancel') this);
eventType(target utils.prefixPointerEvent('pointerup') this);
}
if ( utils.hasTouch && !this.options.disableTouch ) {
eventType(this.wrapper 'touchstart' this);
eventType(target 'touchmove' this);
eventType(target 'touchcancel' this);
eventType(target 'touchend' this);
}
eventType(this.scroller 'transitionend' this);
eventType(this.scroller 'webkitTransitionEnd' this);
eventType(this.scroller 'oTransitionEnd' this);
eventType(this.scroller 'MSTransitionEnd' this);
}
getComputedPosition: function () {
var matrix = window.getComputedStyle(this.scroller null)
x y;
if ( this.options.useTransform ) {
matrix = matrix[utils.style.transform].split(')')[0].split(' ');
x = +(matrix[12] || matrix[4]);
y = +(matrix[13] || matrix[5]);
} else {
x = +matrix.left.replace(/[^-d.]/g '');
y = +matrix.top.replace(/[^-d.]/g '');
}
return { x: x y: y };
}
_initIndicators: function () {
var interactive = this.options.interactiveScrollbars
customStyle = typeof this.options.scrollbars != 'string'
indicators = []
indicator;
var that = this;
this.indicators = [];
if ( this.options.scrollbars ) {
// Vertical scrollbar
if ( this.options.scrollY ) {
indicator = {
el: createDefaultScrollbar('v' interactive this.options.scrollbars)
interactive: interactive
defaultScrollbars: true
customStyle: customStyle
resize: this.options.resizeScrollbars
shrink: this.options.shrinkScrollbars
fade: this.options.fadeScrollbars
listenX: false
};
this.wrapper.appendChild(indicator.el);
indicators.push(indicator);
}
// Horizontal scrollbar
if ( this.options.scrollX ) {
indicator = {
el: createDefaultScrollbar('h' interactive this.options.scrollbars)
interactive: interactive
defaultScrollbars: true
customStyle: customStyle
resize: this.options.resizeScrollbars
shrink: this.options.shrinkScrollbars
fade: this.options.fadeScrollbars
listenY: false
};
this.wrapper.appendChild(indicator.el);
indicators.push(indicator);
}
}
if ( this.options.indicators ) {
// TODO: check concat compatibility
indicators = indicators.concat(this.options.indicators);
}
for ( var i = indicators.length; i--; ) {
this.indicators.push( new Indicator(this indicators[i]) );
}
// TODO: check if we can use array.map (wide compatibility and performance issues)
function _indicatorsMap (fn) {
if (that.indicators) {
for ( var i = that.indicators.length; i--; ) {
fn.call(that.indicators[i]);
}
}
}
if ( this.options.fadeScrollbars ) {
this.on('scrollEnd' function () {
_indicatorsMap(function () {
this.fade();
});
});
this.on('scrollCancel' function () {
_indicatorsMap(function () {
this.fade();
});
});
this.on('scrollStart' function () {
_indicatorsMap(function () {
this.fade(1);
});
});
this.on('beforeScrollStart' function () {
_indicatorsMap(function () {
this.fade(1 true);
});
});
}
this.on('refresh' function () {
_indicatorsMap(function () {
this.refresh();
});
});
this.on('destroy' function () {
_indicatorsMap(function () {
this.destroy();
});
delete this.indicators;
});
}
_initWheel: function () {
utils.addEvent(this.wrapper 'wheel' this);
utils.addEvent(this.wrapper 'mousewheel' this);
utils.addEvent(this.wrapper 'DOMMouseScroll' this);
this.on('destroy' function () {
clearTimeout(this.wheelTimeout);
this.wheelTimeout = null;
utils.removeEvent(this.wrapper 'wheel' this);
utils.removeEvent(this.wrapper 'mousewheel' this);
utils.removeEvent(this.wrapper 'DOMMouseScroll' this);
});
}
_wheel: function (e) {
if ( !this.enabled ) {
return;
}
e.preventDefault();
var wheelDeltaX wheelDeltaY
newX newY
that = this;
if ( this.wheelTimeout === undefined ) {
that._execEvent('scrollStart');
}
// Execute the scrollEnd event after 400ms the wheel stopped scrolling
clearTimeout(this.wheelTimeout);
this.wheelTimeout = setTimeout(function () {
if(!that.options.snap) {
that._execEvent('scrollEnd');
}
that.wheelTimeout = undefined;
} 400);
if ( 'deltaX' in e ) {
if (e.deltaMode === 1) {
wheelDeltaX = -e.deltaX * this.options.mouseWheelSpeed;
wheelDeltaY = -e.deltaY * this.options.mouseWheelSpeed;
} else {
wheelDeltaX = -e.deltaX;
wheelDeltaY = -e.deltaY;
}
} else if ( 'wheelDeltaX' in e ) {
wheelDeltaX = e.wheelDeltaX / 120 * this.options.mouseWheelSpeed;
wheelDeltaY = e.wheelDeltaY / 120 * this.options.mouseWheelSpeed;
} else if ( 'wheelDelta' in e ) {
wheelDeltaX = wheelDeltaY = e.wheelDelta / 120 * this.options.mouseWheelSpeed;
} else if ( 'detail' in e ) {
wheelDeltaX = wheelDeltaY = -e.detail / 3 * this.options.mouseWheelSpeed;
} else {
return;
}
wheelDeltaX *= this.options.invertWheelDirection;
wheelDeltaY *= this.options.invertWheelDirection;
if ( !this.hasVerticalScroll ) {
wheelDeltaX = wheelDeltaY;
wheelDeltaY = 0;
}
if ( this.options.snap ) {
newX = this.currentPage.pageX;
newY = this.currentPage.pageY;
if ( wheelDeltaX > 0 ) {
newX--;
} else if ( wheelDeltaX < 0 ) {
newX++;
}
if ( wheelDeltaY > 0 ) {
newY--;
} else if ( wheelDeltaY < 0 ) {
newY++;
}
this.goToPage(newX newY);
return;
}
newX = this.x + Math.round(this.hasHorizontalScroll ? wheelDeltaX : 0);
newY = this.y + Math.round(this.hasVerticalScroll ? wheelDeltaY : 0);
this.directionX = wheelDeltaX > 0 ? -1 : wheelDeltaX < 0 ? 1 : 0;
this.directionY = wheelDeltaY > 0 ? -1 : wheelDeltaY < 0 ? 1 : 0;
if ( newX > 0 ) {
newX = 0;
} else if ( newX < this.maxScrollX ) {
newX = this.maxScrollX;
}
if ( newY > 0 ) {
newY = 0;
} else if ( newY < this.maxScrollY ) {
newY = this.maxScrollY;
}
this.scrollTo(newX newY 0);
// INSERT POINT: _wheel
}
_initSnap: function () {
this.currentPage = {};
if ( typeof this.options.snap == 'string' ) {
this.options.snap = this.scroller.querySelectorAll(this.options.snap);
}
this.on('refresh' function () {
var i = 0 l
m = 0 n
cx cy
x = 0 y
stepX = this.options.snapStepX || this.wrapperWidth
stepY = this.options.snapStepY || this.wrapperHeight
el;
this.pages = [];
if ( !this.wrapperWidth || !this.wrapperHeight || !this.scrollerWidth || !this.scrollerHeight ) {
return;
}
if ( this.options.snap === true ) {
cx = Math.round( stepX / 2 );
cy = Math.round( stepY / 2 );
while ( x > -this.scrollerWidth ) {
this.pages[i] = [];
l = 0;
y = 0;
while ( y > -this.scrollerHeight ) {
this.pages[i][l] = {
x: Math.max(x this.maxScrollX)
y: Math.max(y this.maxScrollY)
width: stepX
height: stepY
cx: x - cx
cy: y - cy
};
y -= stepY;
l++;
}
x -= stepX;
i++;
}
} else {
el = this.options.snap;
l = el.length;
n = -1;
for ( ; i < l; i++ ) {
if ( i === 0 || el[i].offsetLeft <= el[i-1].offsetLeft ) {
m = 0;
n++;
}
if ( !this.pages[m] ) {
this.pages[m] = [];
}
x = Math.max(-el[i].offsetLeft this.maxScrollX);
y = Math.max(-el[i].offsetTop this.maxScrollY);
cx = x - Math.round(el[i].offsetWidth / 2);
cy = y - Math.round(el[i].offsetHeight / 2);
this.pages[m][n] = {
x: x
y: y
width: el[i].offsetWidth
height: el[i].offsetHeight
cx: cx
cy: cy
};
if ( x > this.maxScrollX ) {
m++;
}
}
}
this.goToPage(this.currentPage.pageX || 0 this.currentPage.pageY || 0 0);
// Update snap threshold if needed
if ( this.options.snapThreshold % 1 === 0 ) {
this.snapThresholdX = this.options.snapThreshold;
this.snapThresholdY = this.options.snapThreshold;
} else {
this.snapThresholdX = Math.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].width * this.options.snapThreshold);
this.snapThresholdY = Math.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].height * this.options.snapThreshold);
}
});
this.on('flick' function () {
var time = this.options.snapSpeed || Math.max(
Math.max(
Math.min(Math.abs(this.x - this.startX) 1000)
Math.min(Math.abs(this.y - this.startY) 1000)
) 300);
this.goToPage(
this.currentPage.pageX + this.directionX
this.currentPage.pageY + this.directionY
time
);
});
}
_nearestSnap: function (x y) {
if ( !this.pages.length ) {
return { x: 0 y: 0 pageX: 0 pageY: 0 };
}
var i = 0
l = this.pages.length
m = 0;
// Check if we exceeded the snap threshold
if ( Math.abs(x - this.absStartX) < this.snapThresholdX &&
Math.abs(y - this.absStartY) < this.snapThresholdY ) {
return this.currentPage;
}
if ( x > 0 ) {
x = 0;
} else if ( x < this.maxScrollX ) {
x = this.maxScrollX;
}
if ( y > 0 ) {
y = 0;
} else if ( y < this.maxScrollY ) {
y = this.maxScrollY;
}
for ( ; i < l; i++ ) {
if ( x >= this.pages[i][0].cx ) {
x = this.pages[i][0].x;
break;
}
}
l = this.pages[i].length;
for ( ; m < l; m++ ) {
if ( y >= this.pages[0][m].cy ) {
y = this.pages[0][m].y;
break;
}
}
if ( i == this.currentPage.pageX ) {
i += this.directionX;
if ( i < 0 ) {
i = 0;
} else if ( i >= this.pages.length ) {
i = this.pages.length - 1;
}
x = this.pages[i][0].x;
}
if ( m == this.currentPage.pageY ) {
m += this.directionY;
if ( m < 0 ) {
m = 0;
} else if ( m >= this.pages[0].length ) {
m = this.pages[0].length - 1;
}
y = this.pages[0][m].y;
}
return {
x: x
y: y
pageX: i
pageY: m
};
}
goToPage: function (x y time easing) {
easing = easing || this.options.bounceEasing;
if ( x >= this.pages.length ) {
x = this.pages.length - 1;
} else if ( x < 0 ) {
x = 0;
}
if ( y >= this.pages[x].length ) {
y = this.pages[x].length - 1;
} else if ( y < 0 ) {
y = 0;
}
var posX = this.pages[x][y].x
posY = this.pages[x][y].y;
time = time === undefined ? this.options.snapSpeed || Math.max(
Math.max(
Math.min(Math.abs(posX - this.x) 1000)
Math.min(Math.abs(posY - this.y) 1000)
) 300) : time;
this.currentPage = {
x: posX
y: posY
pageX: x
pageY: y
};
this.scrollTo(posX posY time easing);
}
next: function (time easing) {
var x = this.currentPage.pageX
y = this.currentPage.pageY;
x++;
if ( x >= this.pages.length && this.hasVerticalScroll ) {
x = 0;
y++;
}
this.goToPage(x y time easing);
}
prev: function (time easing) {
var x = this.currentPage.pageX
y = this.currentPage.pageY;
x--;
if ( x < 0 && this.hasVerticalScroll ) {
x = 0;
y--;
}
this.goToPage(x y time easing);
}
_initKeys: function (e) {
// default key bindings
var keys = {
pageUp: 33
pageDown: 34
end: 35
home: 36
left: 37
up: 38
right: 39
down: 40
};
var i;
// if you give me characters I give you keycode
if ( typeof this.options.keyBindings == 'object' ) {
for ( i in this.options.keyBindings ) {
if ( typeof this.options.keyBindings[i] == 'string' ) {
this.options.keyBindings[i] = this.options.keyBindings[i].toUpperCase().charCodeAt(0);
}
}
} else {
this.options.keyBindings = {};
}
for ( i in keys ) {
this.options.keyBindings[i] = this.options.keyBindings[i] || keys[i];
}
utils.addEvent(window 'keydown' this);
this.on('destroy' function () {
utils.removeEvent(window 'keydown' this);
});
}
_key: function (e) {
if ( !this.enabled ) {
return;
}
var snap = this.options.snap // we are using this alot better to cache it
newX = snap ? this.currentPage.pageX : this.x
newY = snap ? this.currentPage.pageY : this.y
now = utils.getTime()
prevTime = this.keyTime || 0
acceleration = 0.250
pos;
if ( this.options.useTransition && this.isInTransition ) {
pos = this.getComputedPosition();
this._translate(Math.round(pos.x) Math.round(pos.y));
this.isInTransition = false;
}
this.keyAcceleration = now - prevTime < 200 ? Math.min(this.keyAcceleration + acceleration 50) : 0;
switch ( e.keyCode ) {
case this.options.keyBindings.pageUp:
if ( this.hasHorizontalScroll && !this.hasVerticalScroll ) {
newX += snap ? 1 : this.wrapperWidth;
} else {
newY += snap ? 1 : this.wrapperHeight;
}
break;
case this.options.keyBindings.pageDown:
if ( this.hasHorizontalScroll && !this.hasVerticalScroll ) {
newX -= snap ? 1 : this.wrapperWidth;
} else {
newY -= snap ? 1 : this.wrapperHeight;
}
break;
case this.options.keyBindings.end:
newX = snap ? this.pages.length-1 : this.maxScrollX;
newY = snap ? this.pages[0].length-1 : this.maxScrollY;
break;
case this.options.keyBindings.home:
newX = 0;
newY = 0;
break;
case this.options.keyBindings.left:
newX += snap ? -1 : 5 + this.keyAcceleration>>0;
break;
case this.options.keyBindings.up:
newY += snap ? 1 : 5 + this.keyAcceleration>>0;
break;
case this.options.keyBindings.right:
newX -= snap ? -1 : 5 + this.keyAcceleration>>0;
break;
case this.options.keyBindings.down:
newY -= snap ? 1 : 5 + this.keyAcceleration>>0;
break;
default:
return;
}
if ( snap ) {
this.goToPage(newX newY);
return;
}
if ( newX > 0 ) {
newX = 0;
this.keyAcceleration = 0;
} else if ( newX < this.maxScrollX ) {
newX = this.maxScrollX;
this.keyAcceleration = 0;
}
if ( newY > 0 ) {
newY = 0;
this.keyAcceleration = 0;
} else if ( newY < this.maxScrollY ) {
newY = this.maxScrollY;
this.keyAcceleration = 0;
}
this.scrollTo(newX newY 0);
this.keyTime = now;
}
_animate: function (destX destY duration easingFn) {
var that = this
startX = this.x
startY = this.y
startTime = utils.getTime()
destTime = startTime + duration;
function step () {
var now = utils.getTime()
newX newY
easing;
if ( now >= destTime ) {
that.isAnimating = false;
that._translate(destX destY);
if ( !that.resetPosition(that.options.bounceTime) ) {
that._execEvent('scrollEnd');
}
return;
}
now = ( now - startTime ) / duration;
easing = easingFn(now);
newX = ( destX - startX ) * easing + startX;
newY = ( destY - startY ) * easing + startY;
that._translate(newX newY);
if ( that.isAnimating ) {
rAF(step);
}
}
this.isAnimating = true;
step();
}
handleEvent: function (e) {
switch ( e.type ) {
case 'touchstart':
case 'pointerdown':
case 'MSPointerDown':
case 'mousedown':
this._start(e);
break;
case 'touchmove':
case 'pointermove':
case 'MSPointerMove':
case 'mousemove':
this._move(e);
break;
case 'touchend':
case 'pointerup':
case 'MSPointerUp':
case 'mouseup':
case 'touchcancel':
case 'pointercancel':
case 'MSPointerCancel':
case 'mousecancel':
this._end(e);
break;
case 'orientationchange':
case 'resize':
this._resize();
break;
case 'transitionend':
case 'webkitTransitionEnd':
case 'oTransitionEnd':
case 'MSTransitionEnd':
this._transitionEnd(e);
break;
case 'wheel':
case 'DOMMouseScroll':
case 'mousewheel':
this._wheel(e);
break;
case 'keydown':
this._key(e);
break;
case 'click':
if ( this.enabled && !e._constructed ) {
e.preventDefault();
e.stopPropagation();
}
break;
}
}
};
function createDefaultScrollbar (direction interactive type) {
var scrollbar = document.createElement('div')
indicator = document.createElement('div');
if ( type === true ) {
scrollbar.style.cssText = 'position:absolute;z-index:9999';
indicator.style.cssText = '-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;position:absolute;background:rgba(0000.5);border:1px solid rgba(2552552550.9);border-radius:3px';
}
indicator.className = 'iScrollIndicator';
if ( direction == 'h' ) {
if ( type === true ) {
scrollbar.style.cssText += ';height:7px;left:2px;right:2px;bottom:0';
indicator.style.height = '100%';
}
scrollbar.className = 'iScrollHorizontalScrollbar';
} else {
if ( type === true ) {
scrollbar.style.cssText += ';width:7px;bottom:2px;top:2px;right:1px';
indicator.style.width = '100%';
}
scrollbar.className = 'iScrollVerticalScrollbar';
}
scrollbar.style.cssText += ';overflow:hidden';
if ( !interactive ) {
scrollbar.style.pointerEvents = 'none';
}
scrollbar.appendChild(indicator);
return scrollbar;
}
function Indicator (scroller options) {
this.wrapper = typeof options.el == 'string' ? document.querySelector(options.el) : options.el;
this.wrapperStyle = this.wrapper.style;
this.indicator = this.wrapper.children[0];
this.indicatorStyle = this.indicator.style;
this.scroller = scroller;
this.options = {
listenX: true
listenY: true
interactive: false
resize: true
defaultScrollbars: false
shrink: false
fade: false
speedRatioX: 0
speedRatioY: 0
};
for ( var i in options ) {
this.options[i] = options[i];
}
this.sizeRatioX = 1;
this.sizeRatioY = 1;
this.maxPosX = 0;
this.maxPosY = 0;
if ( this.options.interactive ) {
if ( !this.options.disableTouch ) {
utils.addEvent(this.indicator 'touchstart' this);
utils.addEvent(window 'touchend' this);
}
if ( !this.options.disablePointer ) {
utils.addEvent(this.indicator utils.prefixPointerEvent('pointerdown') this);
utils.addEvent(window utils.prefixPointerEvent('pointerup') this);
}
if ( !this.options.disableMouse ) {
utils.addEvent(this.indicator 'mousedown' this);
utils.addEvent(window 'mouseup' this);
}
}
if ( this.options.fade ) {
this.wrapperStyle[utils.style.transform] = this.scroller.translateZ;
var durationProp = utils.style.transitionDuration;
if(!durationProp) {
return;
}
this.wrapperStyle[durationProp] = utils.isBadAndroid ? '0.0001ms' : '0ms';
// remove 0.0001ms
var self = this;
if(utils.isBadAndroid) {
rAF(function() {
if(self.wrapperStyle[durationProp] === '0.0001ms') {
self.wrapperStyle[durationProp] = '0s';
}
});
}
this.wrapperStyle.opacity = '0';
}
}
Indicator.prototype = {
handleEvent: function (e) {
switch ( e.type ) {
case 'touchstart':
case 'pointerdown':
case 'MSPointerDown':
case 'mousedown':
this._start(e);
break;
case 'touchmove':
case 'pointermove':
case 'MSPointerMove':
case 'mousemove':
this._move(e);
break;
case 'touchend':
case 'pointerup':
case 'MSPointerUp':
case 'mouseup':
case 'touchcancel':
case 'pointercancel':
case 'MSPointerCancel':
case 'mousecancel':
this._end(e);
break;
}
}
destroy: function () {
if ( this.options.fadeScrollbars ) {
clearTimeout(this.fadeTimeout);
this.fadeTimeout = null;
}
if ( this.options.interactive ) {
utils.removeEvent(this.indicator 'touchstart' this);
utils.removeEvent(this.indicator utils.prefixPointerEvent('pointerdown') this);
utils.removeEvent(this.indicator 'mousedown' this);
utils.removeEvent(window 'touchmove' this);
utils.removeEvent(window utils.prefixPointerEvent('pointermove') this);
utils.removeEvent(window 'mousemove' this);
utils.removeEvent(window 'touchend' this);
utils.removeEvent(window utils.prefixPointerEvent('pointerup') this);
utils.removeEvent(window 'mouseup' this);
}
if ( this.options.defaultScrollbars ) {
this.wrapper.parentNode.removeChild(this.wrapper);
}
}
_start: function (e) {
var point = e.touches ? e.touches[0] : e;
e.preventDefault();
e.stopPropagation();
this.transitionTime();
this.initiated = true;
this.moved = false;
this.lastPointX = point.pageX;
this.lastPointY = point.pageY;
this.startTime = utils.getTime();
if ( !this.options.disableTouch ) {
utils.addEvent(window 'touchmove' this);
}
if ( !this.options.disablePointer ) {
utils.addEvent(window utils.prefixPointerEvent('pointermove') this);
}
if ( !this.options.disableMouse ) {
utils.addEvent(window 'mousemove' this);
}
this.scroller._execEvent('beforeScrollStart');
}
_move: function (e) {
var point = e.touches ? e.touches[0] : e
deltaX deltaY
newX newY
timestamp = utils.getTime();
if ( !this.moved ) {
this.scroller._execEvent('scrollStart');
}
this.moved = true;
deltaX = point.pageX - this.lastPointX;
this.lastPointX = point.pageX;
deltaY = point.pageY - this.lastPointY;
this.lastPointY = point.pageY;
newX = this.x + deltaX;
newY = this.y + deltaY;
this._pos(newX newY);
// INSERT POINT: indicator._move
e.preventDefault();
e.stopPropagation();
}
_end: function (e) {
if ( !this.initiated ) {
return;
}
this.initiated = false;
e.preventDefault();
e.stopPropagation();
utils.removeEvent(window 'touchmove' this);
utils.removeEvent(window utils.prefixPointerEvent('pointermove') this);
utils.removeEvent(window 'mousemove' this);
if ( this.scroller.options.snap ) {
var snap = this.scroller._nearestSnap(this.scroller.x this.scroller.y);
var time = this.options.snapSpeed || Math.max(
Math.max(
Math.min(Math.abs(this.scroller.x - snap.x) 1000)
Math.min(Math.abs(this.scroller.y - snap.y) 1000)
) 300);
if ( this.scroller.x != snap.x || this.scroller.y != snap.y ) {
this.scroller.directionX = 0;
this.scroller.directionY = 0;
this.scroller.currentPage = snap;
this.scroller.scrollTo(snap.x snap.y time this.scroller.options.bounceEasing);
}
}
if ( this.moved ) {
this.scroller._execEvent('scrollEnd');
}
}
transitionTime: function (time) {
time = time || 0;
var durationProp = utils.style.transitionDuration;
if(!durationProp) {
return;
}
this.indicatorStyle[durationProp] = time + 'ms';
if ( !time && utils.isBadAndroid ) {
this.indicatorStyle[durationProp] = '0.0001ms';
// remove 0.0001ms
var self = this;
rAF(function() {
if(self.indicatorStyle[durationProp] === '0.0001ms') {
self.indicatorStyle[durationProp] = '0s';
}
});
}
}
transitionTimingFunction: function (easing) {
this.indicatorStyle[utils.style.transitionTimingFunction] = easing;
}
refresh: function () {
this.transitionTime();
if ( this.options.listenX && !this.options.listenY ) {
this.indicatorStyle.display = this.scroller.hasHorizontalScroll ? 'block' : 'none';
} else if ( this.options.listenY && !this.options.listenX ) {
this.indicatorStyle.display = this.scroller.hasVerticalScroll ? 'block' : 'none';
} else {
this.indicatorStyle.display = this.scroller.hasHorizontalScroll || this.scroller.hasVerticalScroll ? 'block' : 'none';
}
if ( this.scroller.hasHorizontalScroll && this.scroller.hasVerticalScroll ) {
utils.addClass(this.wrapper 'iScrollBothScrollbars');
utils.removeClass(this.wrapper 'iScrollLoneScrollbar');
if ( this.options.defaultScrollbars && this.options.customStyle ) {
if ( this.options.listenX ) {
this.wrapper.style.right = '8px';
} else {
this.wrapper.style.bottom = '8px';
}
}
} else {
utils.removeClass(this.wrapper 'iScrollBothScrollbars');
utils.addClass(this.wrapper 'iScrollLoneScrollbar');
if ( this.options.defaultScrollbars && this.options.customStyle ) {
if ( this.options.listenX ) {
this.wrapper.style.right = '2px';
} else {
this.wrapper.style.bottom = '2px';
}
}
}
var r = this.wrapper.offsetHeight; // force refresh
if ( this.options.listenX ) {
this.wrapperWidth = this.wrapper.clientWidth;
if ( this.options.resize ) {
this.indicatorWidth = Math.max(Math.round(this.wrapperWidth * this.wrapperWidth / (this.scroller.scrollerWidth || this.wrapperWidth || 1)) 8);
this.indicatorStyle.width = this.indicatorWidth + 'px';
} else {
this.indicatorWidth = this.indicator.clientWidth;
}
this.maxPosX = this.wrapperWidth - this.indicatorWidth;
if ( this.options.shrink == 'clip' ) {
this.minBoundaryX = -this.indicatorWidth + 8;
this.maxBoundaryX = this.wrapperWidth - 8;
} else {
this.minBoundaryX = 0;
this.maxBoundaryX = this.maxPosX;
}
this.sizeRatioX = this.options.speedRatioX || (this.scroller.maxScrollX && (this.maxPosX / this.scroller.maxScrollX));
}
if ( this.options.listenY ) {
this.wrapperHeight = this.wrapper.clientHeight;
if ( this.options.resize ) {
this.indicatorHeight = Math.max(Math.round(this.wrapperHeight * this.wrapperHeight / (this.scroller.scrollerHeight || this.wrapperHeight || 1)) 8);
this.indicatorStyle.height = this.indicatorHeight + 'px';
} else {
this.indicatorHeight = this.indicator.clientHeight;
}
this.maxPosY = this.wrapperHeight - this.indicatorHeight;
if ( this.options.shrink == 'clip' ) {
this.minBoundaryY = -this.indicatorHeight + 8;
this.maxBoundaryY = this.wrapperHeight - 8;
} else {
this.minBoundaryY = 0;
this.maxBoundaryY = this.maxPosY;
}
this.maxPosY = this.wrapperHeight - this.indicatorHeight;
this.sizeRatioY = this.options.speedRatioY || (this.scroller.maxScrollY && (this.maxPosY / this.scroller.maxScrollY));
}
this.updatePosition();
}
updatePosition: function () {
var x = this.options.listenX && Math.round(this.sizeRatioX * this.scroller.x) || 0
y = this.options.listenY && Math.round(this.sizeRatioY * this.scroller.y) || 0;
if ( !this.options.ignoreBoundaries ) {
if ( x < this.minBoundaryX ) {
if ( this.options.shrink == 'scale' ) {
this.width = Math.max(this.indicatorWidth + x 8);
this.indicatorStyle.width = this.width + 'px';
}
x = this.minBoundaryX;
} else if ( x > this.maxBoundaryX ) {
if ( this.options.shrink == 'scale' ) {
this.width = Math.max(this.indicatorWidth - (x - this.maxPosX) 8);
this.indicatorStyle.width = this.width + 'px';
x = this.maxPosX + this.indicatorWidth - this.width;
} else {
x = this.maxBoundaryX;
}
} else if ( this.options.shrink == 'scale' && this.width != this.indicatorWidth ) {
this.width = this.indicatorWidth;
this.indicatorStyle.width = this.width + 'px';
}
if ( y < this.minBoundaryY ) {
if ( this.options.shrink == 'scale' ) {
this.height = Math.max(this.indicatorHeight + y * 3 8);
this.indicatorStyle.height = this.height + 'px';
}
y = this.minBoundaryY;
} else if ( y > this.maxBoundaryY ) {
if ( this.options.shrink == 'scale' ) {
this.height = Math.max(this.indicatorHeight - (y - this.maxPosY) * 3 8);
this.indicatorStyle.height = this.height + 'px';
y = this.maxPosY + this.indicatorHeight - this.height;
} else {
y = this.maxBoundaryY;
}
} else if ( this.options.shrink == 'scale' && this.height != this.indicatorHeight ) {
this.height = this.indicatorHeight;
this.indicatorStyle.height = this.height + 'px';
}
}
this.x = x;
this.y = y;
if ( this.scroller.options.useTransform ) {
this.indicatorStyle[utils.style.transform] = 'translate(' + x + 'px' + y + 'px)' + this.scroller.translateZ;
} else {
this.indicatorStyle.left = x + 'px';
this.indicatorStyle.top = y + 'px';
}
}
_pos: function (x y) {
if ( x < 0 ) {
x = 0;
} else if ( x > this.maxPosX ) {
x = this.maxPosX;
}
if ( y < 0 ) {
y = 0;
} else if ( y > this.maxPosY ) {
y = this.maxPosY;
}
x = this.options.listenX ? Math.round(x / this.sizeRatioX) : this.scroller.x;
y = this.options.listenY ? Math.round(y / this.sizeRatioY) : this.scroller.y;
this.scroller.scrollTo(x y);
}
fade: function (val hold) {
if ( hold && !this.visible ) {
return;
}
clearTimeout(this.fadeTimeout);
this.fadeTimeout = null;
var time = val ? 250 : 500
delay = val ? 0 : 300;
val = val ? '1' : '0';
this.wrapperStyle[utils.style.transitionDuration] = time + 'ms';
this.fadeTimeout = setTimeout((function (val) {
this.wrapperStyle.opacity = val;
this.visible = +val;
}).bind(this val) delay);
}
};
IScroll.utils = utils;
if ( typeof module != 'undefined' && module.exports ) {
module.exports = IScroll;
} else if ( typeof define == 'function' && define.amd ) {
define( function () { return IScroll; } );
} else {
window.IScroll = IScroll;
}
})(window document Math);
js/navbarscroll.js
/*
* 移动端模拟导航可点击自动滑动 0.1.4
* Date: 2017-01-11
* by: xiewei
* 导航可左右滑动，可点击边缘的一个，自动滚动下一个到可视范围【依赖于iscroll.js】
*//* DaTouWang URL: www.datouwang.com */
(function ($) {
$.fn.navbarscroll = function (options) {
//各种属性、参数
var _defaults = {
className:'cur' //当前选中点击元素的class类名
clickScrollTime:300 //点击后滑动时间
duibiScreenWidth:0.4 //单位以rem为准，默认为0.4rem
scrollerWidth:3 //单位以px为准，默认为3[仅用于特殊情况：外层宽度因为小数点造成的不精准情况]
defaultSelect:0 //初始选中第n个，默认第0个
fingerClick:0 //目标第0或1个选项触发必须每一项长度一致，方可用此项
endClickScroll:function(thisObj){}//回调函数
}
var _opt = $.extend(_defaults options);
this.each(function () {
//插件实现代码
var _wrapper = $(this);
var _win = $(window);
var _win_width = _win.width()_wrapper_width = _wrapper.width()_wrapper_off_left = _wrapper.offset().left;
var _wrapper_off_right=_win_width-_wrapper_off_left-_wrapper_width;
var _obj_scroller = _wrapper.children('.scroller');
var _obj_ul = _obj_scroller.children('ul');
var _obj_li = _obj_ul.children('li');
var _scroller_w = 0;
_obj_li.css({"margin-left":"0""margin-right":"0"});
for (var i = 0; i < _obj_li.length; i++) {
_scroller_w += _obj_li[i].offsetWidth;
}
_obj_scroller.width(_scroller_w+_opt.scrollerWidth);
var myScroll = new IScroll('#'+_wrapper.attr('id') {
eventPassthrough: true
scrollX: true
scrollY: false
preventDefault: false
});
_init(_obj_li.eq(_opt.defaultSelect));
_obj_li.click(function(){
_init($(this));
});
//解决PC端谷歌浏览器模拟的手机屏幕出现莫名的卡顿现象，滑动时禁止默认事件(2017-01-11)
_wrapper[0].addEventListener('touchmove'function (e){e.preventDefault();}false);
function _init(thiObj){
var $this_obj=thiObj;
var duibi=_opt.duibiScreenWidth*_win_width/10this_index=$this_obj.index()this_off_left=$this_obj.offset().leftthis_pos_left=$this_obj.position().leftthis_width=$this_obj.width()this_prev_width=$this_obj.prev('li').width()this_next_width=$this_obj.next('li').width();
var this_off_right=_win_width-this_off_left-this_width;
if(_scroller_w+2>_wrapper_width){
if(_opt.fingerClick==1){
if(this_index==1){
myScroll.scrollTo(-this_pos_left+this_prev_width0 _opt.clickScrollTime);
}else if(this_index==0){
myScroll.scrollTo(-this_pos_left0 _opt.clickScrollTime);
}else if(this_index==_obj_li.length-2){
myScroll.scrollBy(this_off_right-_wrapper_off_right-this_width0 _opt.clickScrollTime);
}else if(this_index==_obj_li.length-1){
myScroll.scrollBy(this_off_right-_wrapper_off_right0 _opt.clickScrollTime);
}else{
if(this_off_left-_wrapper_off_left-(this_width*_opt.fingerClick)<duibi){
myScroll.scrollTo(-this_pos_left+this_prev_width+(this_width*_opt.fingerClick)0 _opt.clickScrollTime);
}else if(this_off_right-_wrapper_off_right-(this_width*_opt.fingerClick)<duibi){
myScroll.scrollBy(this_off_right-this_next_width-_wrapper_off_right-(this_width*_opt.fingerClick)0 _opt.clickScrollTime);
}
}
}else{
if(this_index==1){
myScroll.scrollTo(-this_pos_left+this_prev_width0 _opt.clickScrollTime);
}else if(this_index==_obj_li.length-1){
if(this_off_right-_wrapper_off_right>1||this_off_right-_wrapper_off_right<-1){
myScroll.scrollBy(this_off_right-_wrapper_off_right0 _opt.clickScrollTime);
}
}else{
if(this_off_left-_wrapper_off_left<duibi){
myScroll.scrollTo(-this_pos_left+this_prev_width0 _opt.clickScrollTime);
}else if(this_off_right-_wrapper_off_right<duibi){
myScroll.scrollBy(this_off_right-this_next_width-_wrapper_off_right0 _opt.clickScrollTime);
}
}
}
}
$this_obj.addClass(_opt.className).siblings('li').removeClass(_opt.className);
_opt.endClickScroll.call(this$this_obj);
}
});
};
})(jQuery);
原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/266783.html