/*
该文档由“写代码的平面师”整理
*/
//duration——>持续的时间
//easing ——>运动方式（32种）
jQuery.easing['jswing'] = jQuery.easing['swing'];
jQuery.extend( jQuery.easing,
{
def: 'easeOutQuad',
//慢速开始，中间变快，慢速结束
swing: function (x, t, b, c, d) {
return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
},
//慢速开始，逐渐变快
easeInQuad: function (x, t, b, c, d) {
return c*(t/=d)*t + b;
},
//快速开始，逐渐变慢
easeOutQuad: function (x, t, b, c, d) {
return -c *(t/=d)*(t-2) + b;
},
//慢速开始，中间变快，慢速结束
easeInOutQuad: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t + b;
return -c/2 * ((--t)*(t-2) - 1) + b;
},
easeInCubic: function (x, t, b, c, d) {
return c*(t/=d)*t*t + b;
},
easeOutCubic: function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t + 1) + b;
},
easeInOutCubic: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t + b;
return c/2*((t-=2)*t*t + 2) + b;
},
easeInQuart: function (x, t, b, c, d) {
return c*(t/=d)*t*t*t + b;
},
easeOutQuart: function (x, t, b, c, d) {
return -c * ((t=t/d-1)*t*t*t - 1) + b;
},
easeInOutQuart: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
return -c/2 * ((t-=2)*t*t*t - 2) + b;
},
easeInQuint: function (x, t, b, c, d) {
return c*(t/=d)*t*t*t*t + b;
},
easeOutQuint: function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t*t*t + 1) + b;
},
easeInOutQuint: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
return c/2*((t-=2)*t*t*t*t + 2) + b;
},
easeInSine: function (x, t, b, c, d) {
return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
},
easeOutSine: function (x, t, b, c, d) {
return c * Math.sin(t/d * (Math.PI/2)) + b;
},
easeInOutSine: function (x, t, b, c, d) {
return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
},
easeInExpo: function (x, t, b, c, d) {
return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
},
easeOutExpo: function (x, t, b, c, d) {
return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
},
easeInOutExpo: function (x, t, b, c, d) {
if (t==0) return b;
if (t==d) return b+c;
if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
},
easeInCirc: function (x, t, b, c, d) {
return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
},
easeOutCirc: function (x, t, b, c, d) {
return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
},
easeInOutCirc: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
},
easeInElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3;
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
},
//结尾可伸缩的运动
easeOutElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3;
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
},
//开始与结尾都有伸缩运动
easeInOutElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d/2)==2) return b+c; if (!p) p=d*(.3*1.5);
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
},
//开始具有微弱的伸缩运动
easeInBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c*(t/=d)*t*((s+1)*t - s) + b;
},
//结尾具有微弱的伸缩运动
easeOutBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
},
//开始与结尾具有微弱的伸缩运动
easeInOutBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
},
//开始具有弹性运动
easeInBounce: function (x, t, b, c, d) {
return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
},
//结尾具有弹性运动
easeOutBounce: function (x, t, b, c, d) {
if ((t/=d) < (1/2.75)) {
return c*(7.5625*t*t) + b;
} else if (t < (2/2.75)) {
return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
} else if (t < (2.5/2.75)) {
return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
} else {
return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
}
},
//开始与结束均有弹性动画
easeInOutBounce: function (x, t, b, c, d) {
if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
}
});
//
// SmoothScroll
(function () {
// Scroll Variables (tweakable)
var defaultOptions = {
// Scrolling Core
frameRate : 150, // [Hz]
animationTime : 400, // [ms]
stepSize : 100, // [px]
// Pulse (less tweakable)
// ratio of "tail" to "acceleration"
pulseAlgorithm : true,
pulseScale : 4,
pulseNormalize : 1,
// Acceleration
accelerationDelta : 2, // 50
accelerationMax : 2, // 3
// Keyboard Settings
keyboardSupport : true, // option
arrowScroll : 2, // [px]
// Other
fixedBackground : true,
excluded : ''
};
var options = defaultOptions;
// Other Variables
var isExcluded = false;
var isFrame = false;
var direction = { x: 0, y: 0 };
var initDone = false;
var root = document.documentElement;
var activeElement;
var observer;
var refreshSize;
var deltaBuffer = [];
var isMac = /^Mac/.test(navigator.platform);
var key = { left: 37, up: 38, right: 39, down: 40, spacebar: 32,
pageup: 33, pagedown: 34, end: 35, home: 36 };
var arrowKeys = { 37: 1, 38: 1, 39: 1, 40: 1 };
/***********************************************
* INITIALIZE
***********************************************/
/**
* Tests if smooth scrolling is allowed. Shuts down everything if not.
*/
function initTest() {
if (options.keyboardSupport) {
addEvent('keydown', keydown);
}
}
/**
* Sets up scrolls array, determines if frames are involved.
*/
function init() {
if (initDone || !document.body) return;
initDone = true;
var body = document.body;
var html = document.documentElement;
var windowHeight = window.innerHeight;
var scrollHeight = body.scrollHeight;
// check compat mode for root element
root = (document.compatMode.indexOf('CSS') >= 0) ? html : body;
activeElement = body;
initTest();
// Checks if this script is running in a frame
if (top != self) {
isFrame = true;
}
/**
* Safari 10 fixed it, Chrome fixed it in v45:
* This fixes a bug where the areas left and right to
* the content does not trigger the onmousewheel event
* on some pages. e.g.: html, body { height: 100% }
*/
else if (isOldSafari &&
scrollHeight > windowHeight &&
(body.offsetHeight <= windowHeight ||
html.offsetHeight <= windowHeight)) {
var fullPageElem = document.createElement('div');
fullPageElem.style.cssText = 'position:absolute; z-index:-10000; ' +
'top:0; left:0; right:0; height:' +
root.scrollHeight + 'px';
document.body.appendChild(fullPageElem);
// DOM changed (throttled) to fix height
var pendingRefresh;
refreshSize = function () {
if (pendingRefresh) return; // could also be: clearTimeout(pendingRefresh);
pendingRefresh = setTimeout(function () {
if (isExcluded) return; // could be running after cleanup
fullPageElem.style.height = '0';
fullPageElem.style.height = root.scrollHeight + 'px';
pendingRefresh = null;
}, 500); // act rarely to stay fast
};
setTimeout(refreshSize, 10);
addEvent('resize', refreshSize);
// TODO: attributeFilter?
var config = {
attributes: true,
childList: true,
characterData: false
// subtree: true
};
observer = new MutationObserver(refreshSize);
observer.observe(body, config);
if (root.offsetHeight <= windowHeight) {
var clearfix = document.createElement('div');
clearfix.style.clear = 'both';
body.appendChild(clearfix);
}
}
// disable fixed background
if (!options.fixedBackground && !isExcluded) {
body.style.backgroundAttachment = 'scroll';
html.style.backgroundAttachment = 'scroll';
}
}
/**
* Removes event listeners and other traces left on the page.
*/
function cleanup() {
observer && observer.disconnect();
removeEvent(wheelEvent, wheel);
removeEvent('mousedown', mousedown);
removeEvent('keydown', keydown);
removeEvent('resize', refreshSize);
removeEvent('load', init);
}
/************************************************
* SCROLLING
************************************************/
var que = [];
var pending = false;
var lastScroll = Date.now();
/**
* Pushes scroll actions to the scrolling queue.
*/
function scrollArray(elem, left, top) {
directionCheck(left, top);
if (options.accelerationMax != 1) {
var now = Date.now();
var elapsed = now - lastScroll;
if (elapsed < options.accelerationDelta) {
var factor = (1 + (50 / elapsed)) / 2;
if (factor > 1) {
factor = Math.min(factor, options.accelerationMax);
left *= factor;
top *= factor;
}
}
lastScroll = Date.now();
}
// push a scroll command
que.push({
x: left,
y: top,
lastX: (left < 0) ? 0.99 : -0.99,
lastY: (top < 0) ? 0.99 : -0.99,
start: Date.now()
});
// don't act if there's a pending queue
if (pending) {
return;
}
var scrollWindow = (elem === document.body);
var step = function (time) {
var now = Date.now();
var scrollX = 0;
var scrollY = 0;
for (var i = 0; i < que.length; i++) {
var item = que[i];
var elapsed = now - item.start;
var finished = (elapsed >= options.animationTime);
// scroll position: [0, 1]
var position = (finished) ? 1 : elapsed / options.animationTime;
// easing [optional]
if (options.pulseAlgorithm) {
position = pulse(position);
}
// only need the difference
var x = (item.x * position - item.lastX) >> 0;
var y = (item.y * position - item.lastY) >> 0;
// add this to the total scrolling
scrollX += x;
scrollY += y;
// update last values
item.lastX += x;
item.lastY += y;
// delete and step back if it's over
if (finished) {
que.splice(i, 1); i--;
}
}
// scroll left and top
if (scrollWindow) {
window.scrollBy(scrollX, scrollY);
}
else {
if (scrollX) elem.scrollLeft += scrollX;
if (scrollY) elem.scrollTop += scrollY;
}
// clean up if there's nothing left to do
if (!left && !top) {
que = [];
}
if (que.length) {
requestFrame(step, elem, (1000 / options.frameRate + 1));
} else {
pending = false;
}
};
// start a new queue of actions
requestFrame(step, elem, 0);
pending = true;
}
/***********************************************
* EVENTS
***********************************************/
/**
* Mouse wheel handler.
* @param {Object} event
*/
function wheel(event) {
if (!initDone) {
init();
}
var target = event.target;
// leave early if default action is prevented
// or it's a zooming event with CTRL
if (event.defaultPrevented || event.ctrlKey) {
return true;
}
// leave embedded content alone (flash & pdf)
if (isNodeName(activeElement, 'embed') ||
(isNodeName(target, 'embed') && /\.pdf/i.test(target.src)) ||
isNodeName(activeElement, 'object') ||
target.shadowRoot) {
return true;
}
var deltaX = -event.wheelDeltaX || event.deltaX || 0;
var deltaY = -event.wheelDeltaY || event.deltaY || 0;
if (isMac) {
if (event.wheelDeltaX && isDivisible(event.wheelDeltaX, 120)) {
deltaX = -120 * (event.wheelDeltaX / Math.abs(event.wheelDeltaX));
}
if (event.wheelDeltaY && isDivisible(event.wheelDeltaY, 120)) {
deltaY = -120 * (event.wheelDeltaY / Math.abs(event.wheelDeltaY));
}
}
// use wheelDelta if deltaX/Y is not available
if (!deltaX && !deltaY) {
deltaY = -event.wheelDelta || 0;
}
// line based scrolling (Firefox mostly)
if (event.deltaMode === 1) {
deltaX *= 40;
deltaY *= 40;
}
var overflowing = overflowingAncestor(target);
// nothing to do if there's no element that's scrollable
if (!overflowing) {
// except Chrome iframes seem to eat wheel events, which we need to
// propagate up, if the iframe has nothing overflowing to scroll
if (isFrame && isChrome) {
// change target to iframe element itself for the parent frame
Object.defineProperty(event, "target", {value: window.frameElement});
return parent.wheel(event);
}
return true;
}
// check if it's a touchpad scroll that should be ignored
if (isTouchpad(deltaY)) {
return true;
}
// scale by step size
// delta is 120 most of the time
// synaptics seems to send 1 sometimes
if (Math.abs(deltaX) > 1.2) {
deltaX *= options.stepSize / 120;
}
if (Math.abs(deltaY) > 1.2) {
deltaY *= options.stepSize / 120;
}
scrollArray(overflowing, deltaX, deltaY);
//event.preventDefault();
scheduleClearCache();
}
/**
* Keydown event handler.
* @param {Object} event
*/
function keydown(event) {
var target = event.target;
var modifier = event.ctrlKey || event.altKey || event.metaKey ||
(event.shiftKey && event.keyCode !== key.spacebar);
// our own tracked active element could've been removed from the DOM
if (!document.body.contains(activeElement)) {
activeElement = document.activeElement;
}
// do nothing if user is editing text
// or using a modifier key (except shift)
// or in a dropdown
// or inside interactive elements
var inputNodeNames = /^(textarea|select|embed|object)$/i;
var buttonTypes = /^(button|submit|radio|checkbox|file|color|image)$/i;
if ( event.defaultPrevented ||
inputNodeNames.test(target.nodeName) ||
isNodeName(target, 'input') && !buttonTypes.test(target.type) ||
isNodeName(activeElement, 'video') ||
isInsideYoutubeVideo(event) ||
target.isContentEditable ||
modifier ) {
return true;
}
// [spacebar] should trigger button press, leave it alone
if ((isNodeName(target, 'button') ||
isNodeName(target, 'input') && buttonTypes.test(target.type)) &&
event.keyCode === key.spacebar) {
return true;
}
// [arrwow keys] on radio buttons should be left alone
if (isNodeName(target, 'input') && target.type == 'radio' &&
arrowKeys[event.keyCode]) {
return true;
}
var shift, x = 0, y = 0;
var overflowing = overflowingAncestor(activeElement);
if (!overflowing) {
// Chrome iframes seem to eat key events, which we need to
// propagate up, if the iframe has nothing overflowing to scroll
return (isFrame && isChrome) ? parent.keydown(event) : true;
}
var clientHeight = overflowing.clientHeight;
if (overflowing == document.body) {
clientHeight = window.innerHeight;
}
switch (event.keyCode) {
case key.up:
y = -options.arrowScroll;
break;
case key.down:
y = options.arrowScroll;
break;
case key.spacebar: // (+ shift)
shift = event.shiftKey ? 1 : -1;
y = -shift * clientHeight * 0.9;
break;
case key.pageup:
y = -clientHeight * 0.9;
break;
case key.pagedown:
y = clientHeight * 0.9;
break;
case key.home:
y = -overflowing.scrollTop;
break;
case key.end:
var scroll = overflowing.scrollHeight - overflowing.scrollTop;
var scrollRemaining = scroll - clientHeight;
y = (scrollRemaining > 0) ? scrollRemaining + 10 : 0;
break;
case key.left:
x = -options.arrowScroll;
break;
case key.right:
x = options.arrowScroll;
break;
default:
return true; // a key we don't care about
}
scrollArray(overflowing, x, y);
event.preventDefault();
scheduleClearCache();
}
/**
* Mousedown event only for updating activeElement
*/
function mousedown(event) {
activeElement = event.target;
}
/***********************************************
* OVERFLOW
***********************************************/
var uniqueID = (function () {
var i = 0;
return function (el) {
return el.uniqueID || (el.uniqueID = i++);
};
})();
var cache = {}; // cleared out after a scrolling session
var clearCacheTimer;
//setInterval(function () { cache = {}; }, 10 * 1000);
function scheduleClearCache() {
clearTimeout(clearCacheTimer);
clearCacheTimer = setInterval(function () { cache = {}; }, 1*1000);
}
function setCache(elems, overflowing) {
for (var i = elems.length; i--;)
cache[uniqueID(elems[i])] = overflowing;
return overflowing;
}
// (body) (root)
// | hidden | visible | scroll | auto |
// hidden | no | no | YES | YES |
// visible | no | YES | YES | YES |
// scroll | no | YES | YES | YES |
// auto | no | YES | YES | YES |
function overflowingAncestor(el) {
var elems = [];
var body = document.body;
var rootScrollHeight = root.scrollHeight;
do {
var cached = cache[uniqueID(el)];
if (cached) {
return setCache(elems, cached);
}
elems.push(el);
if (rootScrollHeight === el.scrollHeight) {
var topOverflowsNotHidden = overflowNotHidden(root) && overflowNotHidden(body);
var isOverflowCSS = topOverflowsNotHidden || overflowAutoOrScroll(root);
if (isFrame && isContentOverflowing(root) ||
!isFrame && isOverflowCSS) {
return setCache(elems, getScrollRoot());
}
} else if (isContentOverflowing(el) && overflowAutoOrScroll(el)) {
return setCache(elems, el);
}
} while (el = el.parentElement);
}
function isContentOverflowing(el) {
return (el.clientHeight + 10 < el.scrollHeight);
}
// typically for and
function overflowNotHidden(el) {
var overflow = getComputedStyle(el, '').getPropertyValue('overflow-y');
return (overflow !== 'hidden');
}
// for all other elements
function overflowAutoOrScroll(el) {
var overflow = getComputedStyle(el, '').getPropertyValue('overflow-y');
return (overflow === 'scroll' || overflow === 'auto');
}
/***********************************************
* HELPERS
***********************************************/
function addEvent(type, fn) {
window.addEventListener(type, fn, false);
}
function removeEvent(type, fn) {
window.removeEventListener(type, fn, false);
}
function isNodeName(el, tag) {
return (el.nodeName||'').toLowerCase() === tag.toLowerCase();
}
function directionCheck(x, y) {
x = (x > 0) ? 1 : -1;
y = (y > 0) ? 1 : -1;
if (direction.x !== x || direction.y !== y) {
direction.x = x;
direction.y = y;
que = [];
lastScroll = 0;
}
}
var deltaBufferTimer;
if (window.localStorage && localStorage.SS_deltaBuffer) {
try { // #46 Safari throws in private browsing for localStorage
deltaBuffer = localStorage.SS_deltaBuffer.split(',');
} catch (e) { }
}
function isTouchpad(deltaY) {
if (!deltaY) return;
if (!deltaBuffer.length) {
deltaBuffer = [deltaY, deltaY, deltaY];
}
deltaY = Math.abs(deltaY);
deltaBuffer.push(deltaY);
deltaBuffer.shift();
clearTimeout(deltaBufferTimer);
deltaBufferTimer = setTimeout(function () {
try { // #46 Safari throws in private browsing for localStorage
localStorage.SS_deltaBuffer = deltaBuffer.join(',');
} catch (e) { }
}, 1000);
return !allDeltasDivisableBy(120) && !allDeltasDivisableBy(100);
}
function isDivisible(n, divisor) {
return (Math.floor(n / divisor) == n / divisor);
}
function allDeltasDivisableBy(divisor) {
return (isDivisible(deltaBuffer[0], divisor) &&
isDivisible(deltaBuffer[1], divisor) &&
isDivisible(deltaBuffer[2], divisor));
}
function isInsideYoutubeVideo(event) {
var elem = event.target;
var isControl = false;
if (document.URL.indexOf ('www.youtube.com/watch') != -1) {
do {
isControl = (elem.classList &&
elem.classList.contains('html5-video-controls'));
if (isControl) break;
} while (elem = elem.parentNode);
}
return isControl;
}
var requestFrame = (function () {
return (window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
function (callback, element, delay) {
window.setTimeout(callback, delay || (1000/60));
});
})();
var MutationObserver = (window.MutationObserver ||
window.WebKitMutationObserver ||
window.MozMutationObserver);
var getScrollRoot = (function() {
var SCROLL_ROOT;
return function() {
if (!SCROLL_ROOT) {
var dummy = document.createElement('div');
dummy.style.cssText = 'height:10000px;width:1px;';
document.body.appendChild(dummy);
var bodyScrollTop = document.body.scrollTop;
var docElScrollTop = document.documentElement.scrollTop;
window.scrollBy(0, 3);
if (document.body.scrollTop != bodyScrollTop)
(SCROLL_ROOT = document.body);
else
(SCROLL_ROOT = document.documentElement);
window.scrollBy(0, -3);
document.body.removeChild(dummy);
}
return SCROLL_ROOT;
};
})();
/***********************************************
* PULSE (by Michael Herf)
***********************************************/
/**
* Viscous fluid with a pulse for part and decay for the rest.
* - Applies a fixed force over an interval (a damped acceleration), and
* - Lets the exponential bleed away the velocity over a longer interval
* - Michael Herf, http://stereopsis.com/stopping/
*/
function pulse_(x) {
var val, start, expx;
// test
x = x * options.pulseScale;
if (x < 1) { // acceleartion
val = x - (1 - Math.exp(-x));
} else { // tail
// the previous animation ended here:
start = Math.exp(-1);
// simple viscous drag
x -= 1;
expx = 1 - Math.exp(-x);
val = start + (expx * (1 - start));
}
return val * options.pulseNormalize;
}
function pulse(x) {
if (x >= 1) return 1;
if (x <= 0) return 0;
if (options.pulseNormalize == 1) {
options.pulseNormalize /= pulse_(1);
}
return pulse_(x);
}
/***********************************************
* FIRST RUN
***********************************************/
var userAgent = window.navigator.userAgent;
var isEdge = /Edge/.test(userAgent); // thank you MS
var isChrome = /chrome/i.test(userAgent) && !isEdge;
var isSafari = /safari/i.test(userAgent) && !isEdge;
var isMobile = /mobile/i.test(userAgent);
var isIEWin7 = /Windows NT 6.1/i.test(userAgent) && /rv:11/i.test(userAgent);
var isOldSafari = isSafari && (/Version\/8/i.test(userAgent) || /Version\/9/i.test(userAgent));
var isEnabledForBrowser = (isChrome || isSafari || isIEWin7) && !isMobile;
var wheelEvent;
if ('onwheel' in document.createElement('div'))
wheelEvent = 'wheel';
else if ('onmousewheel' in document.createElement('div'))
wheelEvent = 'mousewheel';
if (wheelEvent && isEnabledForBrowser) {
addEvent(wheelEvent, wheel);
addEvent('mousedown', mousedown);
addEvent('load', init);
}
/***********************************************
* PUBLIC INTERFACE
***********************************************/
function SmoothScroll(optionsToSet) {
for (var key in optionsToSet)
if (defaultOptions.hasOwnProperty(key))
options[key] = optionsToSet[key];
}
SmoothScroll.destroy = cleanup;
if (window.SmoothScrollOptions) // async API
SmoothScroll(window.SmoothScrollOptions);
if (typeof define === 'function' && define.amd)
define(function() {
return SmoothScroll;
});
else if ('object' == typeof exports)
module.exports = SmoothScroll;
else
window.SmoothScroll = SmoothScroll;
})();
/*
* jQuery mmenu v4.1.1
* @requires jQuery 1.7.0 or later
*
* mmenu.frebsite.nl
*
* Copyright (c) Fred Heusschen
* www.frebsite.nl
*
* Dual licensed under the MIT and GPL licenses.
* http://en.wikipedia.org/wiki/MIT_License
* http://en.wikipedia.org/wiki/GNU_General_Public_License
*/
(function( $ ) {
var _PLUGIN_ = 'mmenu',
_VERSION_ = '4.1.1';
// Plugin already excists
if ( $[ _PLUGIN_ ] )
{
return;
}
// Global variables
var glbl = {
$wndw: null,
$html: null,
$body: null,
$page: null,
$blck: null,
$allMenus: null,
$scrollTopNode: null
};
var _c = {}, _e = {}, _d = {},
_serialnr = 0;
$[ _PLUGIN_ ] = function( $menu, opts, conf )
{
glbl.$allMenus = glbl.$allMenus.add( $menu );
this.$menu = $menu;
this.opts = opts
this.conf = conf;
this.serialnr = _serialnr++;
this._init();
return this;
};
$[ _PLUGIN_ ].prototype = {
open: function()
{
this._openSetup();
this._openFinish();
return 'open';
},
_openSetup: function()
{
// Find scrolltop
var _scrollTop = findScrollTop();
// Set opened
this.$menu.addClass( _c.current );
// Close others
glbl.$allMenus.not( this.$menu ).trigger( _e.close );
// Store style and position
glbl.$page
.data( _d.style, glbl.$page.attr( 'style' ) || '' )
.data( _d.scrollTop, _scrollTop )
.data( _d.offetLeft, glbl.$page.offset().left );
// Resize page to window width
var _w = 0;
glbl.$wndw.off( _e.resize )
.on( _e.resize,
function( e, force )
{
if ( glbl.$html.hasClass( _c.opened ) || force )
{
var nw = glbl.$wndw.width();
if ( nw != _w )
{
_w = nw;
glbl.$page.width( nw - glbl.$page.data( _d.offetLeft ) );
}
}
}
)
.trigger( _e.resize, [ true ] );
// Prevent tabbing out of the menu
if ( this.conf.preventTabbing )
{
glbl.$wndw.off( _e.keydown )
.on( _e.keydown,
function( e )
{
if ( e.keyCode == 9 )
{
e.preventDefault();
return false;
}
}
);
}
// Add options
if ( this.opts.modal )
{
glbl.$html.addClass( _c.modal );
}
if ( this.opts.moveBackground )
{
glbl.$html.addClass( _c.background );
}
if ( this.opts.position != 'left' )
{
glbl.$html.addClass( _c.mm( this.opts.position ) );
}
if ( this.opts.zposition != 'back' )
{
glbl.$html.addClass( _c.mm( this.opts.zposition ) );
}
if ( this.opts.classes )
{
glbl.$html.addClass( this.opts.classes );
}
// Open
glbl.$html.addClass( _c.opened );
this.$menu.addClass( _c.opened );
// Scroll page to scrolltop
glbl.$page.scrollTop( _scrollTop );
// Scroll menu to top
this.$menu.scrollTop( 0 );
},
_openFinish: function()
{
var that = this;
// Callback
transitionend( glbl.$page,
function()
{
that.$menu.trigger( _e.opened );
}, this.conf.transitionDuration
);
// Opening
glbl.$html.addClass( _c.opening );
this.$menu.trigger( _e.opening );
// Scroll window to top
window.scrollTo( 0, 1 );
},
close: function()
{
var that = this;
// Callback
transitionend( glbl.$page,
function()
{
that.$menu
.removeClass( _c.current )
.removeClass( _c.opened );
glbl.$html
.removeClass( _c.opened )
.removeClass( _c.modal )
.removeClass( _c.background )
.removeClass( _c.mm( that.opts.position ) )
.removeClass( _c.mm( that.opts.zposition ) );
if ( that.opts.classes )
{
glbl.$html.removeClass( that.opts.classes );
}
glbl.$wndw
.off( _e.resize )
.off( _e.keydown );
// Restore style and position
glbl.$page.attr( 'style', glbl.$page.data( _d.style ) );
if ( glbl.$scrollTopNode )
{
glbl.$scrollTopNode.scrollTop( glbl.$page.data( _d.scrollTop ) );
}
// Closed
that.$menu.trigger( _e.closed );
}, this.conf.transitionDuration
);
// Closing
glbl.$html.removeClass( _c.opening );
this.$menu.trigger( _e.closing );
return 'close';
},
_init: function()
{
this.opts = extendOptions( this.opts, this.conf, this.$menu );
this.direction = ( this.opts.slidingSubmenus ) ? 'horizontal' : 'vertical';
// INIT PAGE & MENU
this._initPage( glbl.$page );
this._initMenu();
this._initBlocker();
this._initPanles();
this._initLinks();
this._initOpenClose();
this._bindCustomEvents();
if ( $[ _PLUGIN_ ].addons )
{
for ( var a = 0; a < $[ _PLUGIN_ ].addons.length; a++ )
{
if ( typeof this[ '_addon_' + $[ _PLUGIN_ ].addons[ a ] ] == 'function' )
{
this[ '_addon_' + $[ _PLUGIN_ ].addons[ a ] ]();
}
}
}
},
_bindCustomEvents: function()
{
var that = this;
this.$menu
.off( _e.open + ' ' + _e.close + ' ' + _e.setPage+ ' ' + _e.update )
.on( _e.open + ' ' + _e.close + ' ' + _e.setPage+ ' ' + _e.update,
function( e )
{
e.stopPropagation();
}
);
// Menu-events
this.$menu
.on( _e.open,
function( e )
{
if ( $(this).hasClass( _c.current ) )
{
e.stopImmediatePropagation();
return false;
}
return that.open();
}
)
.on( _e.close,
function( e )
{
if ( !$(this).hasClass( _c.current ) )
{
e.stopImmediatePropagation();
return false;
}
return that.close();
}
)
.on( _e.setPage,
function( e, $p )
{
that._initPage( $p );
that._initOpenClose();
}
);
// Panel-events
var $panels = this.$menu.find( this.opts.isMenu && this.direction != 'horizontal' ? 'ul, ol' : '.' + _c.panel );
$panels
.off( _e.toggle + ' ' + _e.open + ' ' + _e.close )
.on( _e.toggle + ' ' + _e.open + ' ' + _e.close,
function( e )
{
e.stopPropagation();
}
);
if ( this.direction == 'horizontal' )
{
$panels
.on( _e.open,
function( e )
{
return openSubmenuHorizontal( $(this), that.$menu );
}
);
}
else
{
$panels
.on( _e.toggle,
function( e )
{
var $t = $(this);
return $t.triggerHandler( $t.parent().hasClass( _c.opened ) ? _e.close : _e.open );
}
)
.on( _e.open,
function( e )
{
$(this).parent().addClass( _c.opened );
return 'open';
}
)
.on( _e.close,
function( e )
{
$(this).parent().removeClass( _c.opened );
return 'close';
}
);
}
},
_initBlocker: function()
{
var that = this;
if ( !glbl.$blck )
{
glbl.$blck = $( '' ).appendTo( glbl.$body );
}
click( glbl.$blck,
function()
{
if ( !glbl.$html.hasClass( _c.modal ) )
{
that.$menu.trigger( _e.close );
}
}, true, true
);
},
_initPage: function( $p )
{
if ( !$p )
{
$p = $(this.conf.pageSelector, glbl.$body);
if ( $p.length > 1 )
{
$[ _PLUGIN_ ].debug( 'Multiple nodes found for the page-node, all nodes are wrapped in one <' + this.conf.pageNodetype + '>.' );
$p = $p.wrapAll( '<' + this.conf.pageNodetype + ' />' ).parent();
}
}
$p.addClass( _c.page );
glbl.$page = $p;
},
_initMenu: function()
{
var that = this;
// Clone if needed
if ( this.conf.clone )
{
this.$menu = this.$menu.clone( true );
this.$menu.add( this.$menu.find( '*' ) ).filter( '[id]' ).each(
function()
{
$(this).attr( 'id', _c.mm( $(this).attr( 'id' ) ) );
}
);
}
// Strip whitespace
this.$menu.contents().each(
function()
{
if ( $(this)[ 0 ].nodeType == 3 )
{
$(this).remove();
}
}
);
// Prepend to body
this.$menu
.prependTo( 'body' )
.addClass( _c.menu );
// Add direction class
this.$menu.addClass( _c.mm( this.direction ) );
// Add options classes
if ( this.opts.classes )
{
this.$menu.addClass( this.opts.classes );
}
if ( this.opts.isMenu )
{
this.$menu.addClass( _c.ismenu );
}
if ( this.opts.position != 'left' )
{
this.$menu.addClass( _c.mm( this.opts.position ) );
}
if ( this.opts.zposition != 'back' )
{
this.$menu.addClass( _c.mm( this.opts.zposition ) );
}
},
_initPanles: function()
{
var that = this;
// Refactor List class
this.__refactorClass( $('.' + this.conf.listClass, this.$menu), 'list' );
// Add List class
if ( this.opts.isMenu )
{
$('ul, ol', this.$menu)
.not( '.mm-nolist' )
.addClass( _c.list );
}
var $lis = $('.' + _c.list + ' > li', this.$menu);
// Refactor Selected class
this.__refactorClass( $lis.filter( '.' + this.conf.selectedClass ), 'selected' );
// Refactor Label class
this.__refactorClass( $lis.filter( '.' + this.conf.labelClass ), 'label' );
// Refactor Spacer class
this.__refactorClass( $lis.filter( '.' + this.conf.spacerClass ), 'spacer' );
// setSelected-event
$lis
.off( _e.setSelected )
.on( _e.setSelected,
function( e, selected )
{
e.stopPropagation();
$lis.removeClass( _c.selected );
if ( typeof selected != 'boolean' )
{
selected = true;
}
if ( selected )
{
$(this).addClass( _c.selected );
}
}
);
// Refactor Panel class
this.__refactorClass( $('.' + this.conf.panelClass, this.$menu), 'panel' );
// Add Panel class
this.$menu
.children()
.filter( this.conf.panelNodetype )
.add( this.$menu.find( '.' + _c.list ).children().children().filter( this.conf.panelNodetype ) )
.addClass( _c.panel );
var $panels = $('.' + _c.panel, this.$menu);
// Add an ID to all panels
$panels
.each(
function( i )
{
var $t = $(this),
id = $t.attr( 'id' ) || _c.mm( 'm' + that.serialnr + '-p' + i );
$t.attr( 'id', id );
}
);
// Add open and close links to menu items
$panels
.find( '.' + _c.panel )
.each(
function( i )
{
var $t = $(this),
$u = $t.is( 'ul, ol' ) ? $t : $t.find( 'ul ,ol' ).first(),
$l = $t.parent(),
$a = $l.find( '> a, > span' ),
$p = $l.closest( '.' + _c.panel );
$t.data( _d.parent, $l );
if ( $l.parent().is( '.' + _c.list ) )
{
var $btn = $( '' ).insertBefore( $a );
if ( !$a.is( 'a' ) )
{
$btn.addClass( _c.fullsubopen );
}
if ( that.direction == 'horizontal' )
{
$u.prepend( '' + $a.text() + '' );
}
}
}
);
// Link anchors to panels
var evt = this.direction == 'horizontal' ? _e.open : _e.toggle;
$panels
.each(
function( i )
{
var $opening = $(this),
id = $opening.attr( 'id' );
click( $('a[href="#' + id + '"]', that.$menu),
function( e )
{
$opening.trigger( evt );
}
);
}
);
if ( this.direction == 'horizontal' )
{
// Add opened-classes
var $selected = $('.' + _c.list + ' > li.' + _c.selected, this.$menu);
$selected
.add( $selected.parents( 'li' ) )
.parents( 'li' ).removeClass( _c.selected )
.end().each(
function()
{
var $t = $(this),
$u = $t.find( '> .' + _c.panel );
if ( $u.length )
{
$t.parents( '.' + _c.panel ).addClass( _c.subopened );
$u.addClass( _c.opened );
}
}
)
.closest( '.' + _c.panel ).addClass( _c.opened )
.parents( '.' + _c.panel ).addClass( _c.subopened );
}
else
{
// Replace Selected-class with opened-class in parents from .Selected
$('li.' + _c.selected, this.$menu)
.addClass( _c.opened )
.parents( '.' + _c.selected ).removeClass( _c.selected );
}
// Set current opened
var $current = $panels.filter( '.' + _c.opened );
if ( !$current.length )
{
$current = $panels.first();
}
$current
.addClass( _c.opened )
.last()
.addClass( _c.current );
// Rearrange markup
if ( this.direction == 'horizontal' )
{
$panels.find( '.' + _c.panel ).appendTo( this.$menu );
}
},
_initLinks: function()
{
var that = this;
var $a = $('.' + _c.list + ' > li > a', this.$menu)
.not( '.' + _c.subopen )
.not( '.' + _c.subclose )
.not( '[rel="external"]' )
.not( '[target="_blank"]' );
$a.off( _e.click )
.on( _e.click,
function( e )
{
var $t = $(this),
href = $t.attr( 'href' );
// Set selected item
if ( that.__valueOrFn( that.opts.onClick.setSelected, $t ) )
{
$t.parent().trigger( _e.setSelected );
}
// Prevent default / don't follow link. Default: false
var preventDefault = that.__valueOrFn( that.opts.onClick.preventDefault, $t, href.slice( 0, 1 ) == '#' );
if ( preventDefault )
{
e.preventDefault();
e.stopPropagation();
}
// Block UI. Default: false if preventDefault, true otherwise
if ( that.__valueOrFn( that.opts.onClick.blockUI, $t, !preventDefault ) )
{
glbl.$html.addClass( _c.blocking );
}
// Close menu. Default: true if preventDefault, false otherwise
if ( that.__valueOrFn( that.opts.onClick.close, $t, preventDefault ) )
{
that.$menu.triggerHandler( _e.close );
}
}
);
},
_initOpenClose: function()
{
var that = this;
// Toggle menu
var id = this.$menu.attr( 'id' );
if ( id && id.length )
{
if ( this.conf.clone )
{
id = _c.umm( id );
}
click( $('a[href="#' + id + '"]'),
function()
{
that.$menu.trigger( _e.open );
}
);
}
// Close menu
var id = glbl.$page.attr( 'id' );
if ( id && id.length )
{
click( $('a[href="#' + id + '"]'),
function()
{
that.$menu.trigger( _e.close );
}, false, true
);
}
},
__valueOrFn: function( o, $e, d )
{
if ( typeof o == 'function' )
{
return o.call( $e[ 0 ] );
}
if ( typeof o == 'undefined' && typeof d != 'undefined' )
{
return d;
}
return o;
},
__refactorClass: function( $e, c )
{
$e.removeClass( this.conf[ c + 'Class' ] ).addClass( _c[ c ] );
}
};
$.fn[ _PLUGIN_ ] = function( opts, conf )
{
// First time plugin is fired
if ( !glbl.$wndw )
{
_initPlugin();
}
// Extend options
opts = extendOptions( opts, conf );
conf = extendConfiguration( conf );
return this.each(
function()
{
var $menu = $(this);
if ( $menu.data( _PLUGIN_ ) )
{
return;
}
$menu.data( _PLUGIN_, new $[ _PLUGIN_ ]( $menu, opts, conf ) );
}
);
};
$[ _PLUGIN_ ].version = _VERSION_;
$[ _PLUGIN_ ].defaults = {
position : 'left',
zposition : 'back',
moveBackground : true,
slidingSubmenus : true,
modal : false,
classes : '',
onClick : {
// close : true,
// blockUI : null,
// preventDefault : null,
setSelected : true
}
};
$[ _PLUGIN_ ].configuration = {
preventTabbing : true,
panelClass : 'Panel',
listClass : 'List',
selectedClass : 'Selected',
labelClass : 'Label',
spacerClass : 'Spacer',
pageNodetype : 'div',
panelNodetype : 'ul, ol, div',
transitionDuration : 400
};
/*
SUPPORT
*/
(function() {
var wd = window.document,
ua = window.navigator.userAgent;
var _touch = 'ontouchstart' in wd,
_overflowscrolling = 'WebkitOverflowScrolling' in wd.documentElement.style,
_transition = (function() {
var s = document.createElement( 'div' ).style;
if ( 'webkitTransition' in s )
{
return 'webkitTransition';
}
return 'transition' in s;
})(),
_oldAndroidBrowser = (function() {
if ( ua.indexOf( 'Android' ) >= 0 )
{
return 2.4 > parseFloat( ua.slice( ua.indexOf( 'Android' ) +8 ) );
}
return false;
})();
$[ _PLUGIN_ ].support = {
touch: _touch,
transition: _transition,
oldAndroidBrowser: _oldAndroidBrowser,
overflowscrolling: (function() {
if ( !_touch )
{
return true;
}
if ( _overflowscrolling )
{
return true;
}
if ( _oldAndroidBrowser )
{
return false;
}
return true;
})()
};
})();
/*
BROWSER SPECIFIC FIXES
*/
$[ _PLUGIN_ ].useOverflowScrollingFallback = function( use )
{
if ( glbl.$html )
{
if ( typeof use == 'boolean' )
{
glbl.$html[ use ? 'addClass' : 'removeClass' ]( _c.nooverflowscrolling );
}
return glbl.$html.hasClass( _c.nooverflowscrolling );
}
else
{
_useOverflowScrollingFallback = use;
return use;
}
};
/*
DEBUG
*/
$[ _PLUGIN_ ].debug = function( msg ) {};
$[ _PLUGIN_ ].deprecated = function( depr, repl )
{
if ( typeof console != 'undefined' && typeof console.warn != 'undefined' )
{
console.warn( 'MMENU: ' + depr + ' is deprecated, use ' + repl + ' instead.' );
}
};
// Global vars
var _useOverflowScrollingFallback = !$[ _PLUGIN_ ].support.overflowscrolling;
function extendOptions( o, c, $m )
{
if ( typeof o != 'object' )
{
o = {};
}
if ( $m )
{
if ( typeof o.isMenu != 'boolean' )
{
var $c = $m.children();
o.isMenu = ( $c.length == 1 && $c.is( c.panelNodetype ) );
}
return o;
}
// Extend onClick
if ( typeof o.onClick != 'object' )
{
o.onClick = {};
}
// DEPRECATED
if ( typeof o.onClick.setLocationHref != 'undefined' )
{
$[ _PLUGIN_ ].deprecated( 'onClick.setLocationHref option', '!onClick.preventDefault' );
if ( typeof o.onClick.setLocationHref == 'boolean' )
{
o.onClick.preventDefault = !o.onClick.setLocationHref;
}
}
// /DEPRECATED
// Extend from defaults
o = $.extend( true, {}, $[ _PLUGIN_ ].defaults, o );
// Degration
if ( $[ _PLUGIN_ ].useOverflowScrollingFallback() )
{
switch( o.position )
{
case 'top':
case 'right':
case 'bottom':
$[ _PLUGIN_ ].debug( 'position: "' + o.position + '" not supported when using the overflowScrolling-fallback.' );
o.position = 'left';
break;
}
switch( o.zposition )
{
case 'front':
case 'next':
$[ _PLUGIN_ ].debug( 'z-position: "' + o.zposition + '" not supported when using the overflowScrolling-fallback.' );
o.zposition = 'back';
break;
}
}
return o;
}
function extendConfiguration( c )
{
if ( typeof c != 'object' )
{
c = {};
}
// DEPRECATED
if ( typeof c.panelNodeType != 'undefined' )
{
$[ _PLUGIN_ ].deprecated( 'panelNodeType configuration option', 'panelNodetype' );
c.panelNodetype = c.panelNodeType;
}
// /DEPRECATED
c = $.extend( true, {}, $[ _PLUGIN_ ].configuration, c )
// Set pageSelector
if ( typeof c.pageSelector != 'string' )
{
c.pageSelector = '> ' + c.pageNodetype;
}
return c;
}
function _initPlugin()
{
glbl.$wndw = $(window);
glbl.$html = $('html');
glbl.$body = $('body');
glbl.$allMenus = $();
// Classnames, Datanames, Eventnames
$.each( [ _c, _d, _e ],
function( i, o )
{
o.add = function( c )
{
c = c.split( ' ' );
for ( var d in c )
{
o[ c[ d ] ] = o.mm( c[ d ] );
}
};
}
);
// Classnames
_c.mm = function( c ) { return 'mm-' + c; };
_c.add( 'menu ismenu panel list subtitle selected label spacer current highest hidden page blocker modal background opened opening subopened subopen fullsubopen subclose nooverflowscrolling' );
_c.umm = function( c )
{
if ( c.slice( 0, 3 ) == 'mm-' )
{
c = c.slice( 3 );
}
return c;
};
// Datanames
_d.mm = function( d ) { return 'mm-' + d; };
_d.add( 'parent style scrollTop offetLeft' );
// Eventnames
_e.mm = function( e ) { return e + '.mm'; };
_e.add( 'toggle open opening opened close closing closed update setPage setSelected transitionend touchstart touchend click keydown keyup resize' );
if ( !$[ _PLUGIN_ ].support.touch )
{
_e.touchstart = _e.mm( 'mousedown' );
_e.touchend = _e.mm( 'mouseup' );
}
$[ _PLUGIN_ ]._c = _c;
$[ _PLUGIN_ ]._d = _d;
$[ _PLUGIN_ ]._e = _e;
$[ _PLUGIN_ ].glbl = glbl;
$[ _PLUGIN_ ].useOverflowScrollingFallback( _useOverflowScrollingFallback );
}
function openSubmenuHorizontal( $opening, $m )
{
if ( $opening.hasClass( _c.current ) )
{
return false;
}
var $panels = $('.' + _c.panel, $m),
$current = $panels.filter( '.' + _c.current );
$panels
.removeClass( _c.highest )
.removeClass( _c.current )
.not( $opening )
.not( $current )
.addClass( _c.hidden );
if ( $opening.hasClass( _c.opened ) )
{
$current
.addClass( _c.highest )
.removeClass( _c.opened )
.removeClass( _c.subopened );
}
else
{
$opening
.addClass( _c.highest );
$current
.addClass( _c.subopened );
}
$opening
.removeClass( _c.hidden )
.removeClass( _c.subopened )
.addClass( _c.current )
.addClass( _c.opened );
return 'open';
}
function findScrollTop()
{
if ( !glbl.$scrollTopNode )
{
if ( glbl.$html.scrollTop() != 0 )
{
glbl.$scrollTopNode = glbl.$html;
}
else if ( glbl.$body.scrollTop() != 0 )
{
glbl.$scrollTopNode = glbl.$body;
}
}
return ( glbl.$scrollTopNode ) ? glbl.$scrollTopNode.scrollTop() : 0;
}
function transitionend( $e, fn, duration )
{
var s = $[ _PLUGIN_ ].support.transition;
if ( s == 'webkitTransition' )
{
$e.one( 'webkitTransitionEnd', fn );
}
else if ( s )
{
$e.one( _e.transitionend, fn );
}
else
{
setTimeout( fn, duration );
}
}
function click( $b, fn, onTouchStart, add )
{
if ( typeof $b == 'string' )
{
$b = $( $b );
}
var event = ( onTouchStart )
? _e.touchstart
: _e.click;
if ( !add )
{
$b.off( event );
}
$b.on( event,
function( e )
{
e.preventDefault();
e.stopPropagation();
fn.call( this, e );
}
);
}
})( jQuery );