102 lines
2.7 KiB
JavaScript
102 lines
2.7 KiB
JavaScript
// 浏览器判断
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import Browser from './browser'
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// fix hexo 不支持的配置
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import Fix from './fix'
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import Util from './util'
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function isPathMatch(path, href) {
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let reg = /\/|index.html/g
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return (path.replace(reg, '')) === (href.replace(reg, ''))
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}
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function tabActive() {
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let tabs = document.querySelectorAll('.js-header-menu li a')
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let path = window.location.pathname
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Array.prototype.forEach.call(tabs, function(tab, i){
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if (isPathMatch(path, tab.getAttribute('href'))) {
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tab.classList.add('active')
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}
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})
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}
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function getElementLeft(element) {
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var actualLeft = element.offsetLeft;
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var current = element.offsetParent;
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while (current !== null) {
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actualLeft += current.offsetLeft;
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current = current.offsetParent;
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}
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return actualLeft;
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}
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function getElementTop(element) {
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var actualTop = element.offsetTop;
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var current = element.offsetParent;
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while (current !== null) {
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actualTop += current.offsetTop;
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current = current.offsetParent;
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}
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return actualTop;
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}
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function scrollStop($dom, top, limit, zIndex, diff) {
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let nowLeft = getElementLeft($dom)
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let nowTop = getElementTop($dom) - top
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if (nowTop - limit <= diff) {
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let $newDom = $dom.$newDom
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if (!$newDom) {
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$newDom = $dom.cloneNode(true)
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let parentNode = $dom.parentNode
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if(parentNode.lastChild == $dom){ // 将新生成的节点插入到当前节点之后
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parentNode.appendChild($newDom)
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}else{
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parentNode.insertBefore($newDom, $dom.nextSibling)
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}
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$dom.$newDom = $newDom
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$newDom.style.position = 'fixed'
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$newDom.style.top = (limit || nowTop) + 'px'
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$newDom.style.left = nowLeft + 'px'
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$newDom.style.zIndex = zIndex || 2
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$newDom.style.width = '100%'
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$newDom.style.color = '#fff'
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}
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$newDom.style.visibility = 'visible'
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$dom.style.visibility = 'hidden'
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} else {
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$dom.style.visibility = 'visible'
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let $newDom = $dom.$newDom
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if ($newDom) {
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$newDom.style.visibility = 'hidden'
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}
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}
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}
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function handleScroll() {
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let $overlay = document.querySelector('.js-overlay')
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let $menu = document.querySelector('.js-header-menu')
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scrollStop($overlay, document.body.scrollTop, -63, 2, 0)
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scrollStop($menu, document.body.scrollTop, 1, 3, 0)
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}
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function bindScroll() {
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document.querySelector('#container').addEventListener('scroll', (e) => {
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handleScroll()
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})
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window.addEventListener('scroll', (e) => {
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handleScroll()
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})
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handleScroll()
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}
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(function () {
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if (Browser.versions.mobile && window.screen.width < 800) {
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tabActive()
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bindScroll()
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}
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})()
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Util.addLoadEvent(function() {
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Fix.init()
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}) |