导航搜索按钮

<header class="cd-main-header">
    <ul class="cd-header-buttons">
        <li><a class="cd-search-trigger" href="#cd-search">Search<span></span></a></li>
        <li><a class="cd-nav-trigger" href="#cd-primary-nav">Menu<span></span></a></li>
    </ul> <!-- cd-header-buttons -->
</header>

main.js

var MqL = 1170;
//move nav element position according to window width
moveNavigation();
$(window).on('resize', function() {
    (!window.requestAnimationFrame) ? setTimeout(moveNavigation, 300) : window.requestAnimationFrame(moveNavigation);
});

//mobile - open lateral menu clicking on the menu icon
$('.cd-nav-trigger').on('click', function(event) {
    event.preventDefault();
    if ($('.cd-main-content').hasClass('nav-is-visible')) {
        closeNav();
        $('.cd-overlay').removeClass('is-visible');
    } else {
        $(this).addClass('nav-is-visible');
        $('.cd-primary-nav').addClass('nav-is-visible');
        $('.cd-main-header').addClass('nav-is-visible');
        $('.cd-main-content').addClass('nav-is-visible').one('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend', function() {
            $('body').addClass('overflow-hidden');
        });
        toggleSearch('close');
        $('.cd-overlay').addClass('is-visible');
    }
});

//open search form
$('.cd-search-trigger').on('click', function(event) {
    event.preventDefault();
    toggleSearch();
    closeNav();
});

//close lateral menu on mobile 
$('.cd-overlay').on('swiperight', function() {
    if ($('.cd-primary-nav').hasClass('nav-is-visible')) {
        closeNav();
        $('.cd-overlay').removeClass('is-visible');
    }
});
$('.nav-on-left .cd-overlay').on('swipeleft', function() {
    if ($('.cd-primary-nav').hasClass('nav-is-visible')) {
        closeNav();
        $('.cd-overlay').removeClass('is-visible');
    }
});
$('.cd-overlay').on('click', function() {
    closeNav();
    toggleSearch('close')
    $('.cd-overlay').removeClass('is-visible');
});


//prevent default clicking on direct children of .cd-primary-nav 
$('.cd-primary-nav').children('.has-children').children('a').on('click', function(event) {
    event.preventDefault();
});
//open submenu
$('.has-children').children('a').on('click', function(event) {
    if (!checkWindowWidth())
        event.preventDefault();
    var selected = $(this);
    if (selected.next('ul').hasClass('is-hidden')) {
        //desktop version only
        selected.addClass('selected').next('ul').removeClass('is-hidden').end().parent('.has-children').parent('ul').addClass('moves-out');
        selected.parent('.has-children').siblings('.has-children').children('ul').addClass('is-hidden').end().children('a').removeClass('selected');
        $('.cd-overlay').addClass('is-visible');
    } else {
        selected.removeClass('selected').next('ul').addClass('is-hidden').end().parent('.has-children').parent('ul').removeClass('moves-out');
        $('.cd-overlay').removeClass('is-visible');
    }
    toggleSearch('close');
});

//submenu items - go back link
$('.go-back').on('click', function() {
    $(this).parent('ul').addClass('is-hidden').parent('.has-children').parent('ul').removeClass('moves-out');
});

调用方法

$('.go-back').on('click', function() {
    $(this).parent('ul').addClass('is-hidden').parent('.has-children').parent('ul').removeClass('moves-out');
});

function closeNav() {
    $('.cd-nav-trigger').removeClass('nav-is-visible');
    $('.cd-main-header').removeClass('nav-is-visible');
    $('.cd-primary-nav').removeClass('nav-is-visible');
    $('.has-children ul').addClass('is-hidden');
    $('.has-children a').removeClass('selected');
    $('.moves-out').removeClass('moves-out');
    $('.cd-main-content').removeClass('nav-is-visible').one('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend', function() {
        $('body').removeClass('overflow-hidden');
    });
}

function toggleSearch(type) {
    if (type == "close") {
        //close serach 
        $('.cd-search').removeClass('is-visible');
        $('.cd-search-trigger').removeClass('search-is-visible');
    } else {
        //toggle search visibility
        $('.cd-search').toggleClass('is-visible');
        $('.cd-search-trigger').toggleClass('search-is-visible');
        if ($(window).width() > MqL && $('.cd-search').hasClass('is-visible'))
            $('.cd-search').find('input[type="search"]').focus();
        ($('.cd-search').hasClass('is-visible')) ? $('.cd-overlay').addClass('is-visible') : $('.cd-overlay').removeClass('is-visible');
    }
}

function checkWindowWidth() {
    //check window width (scrollbar included)
    var e = window,
            a = 'inner';
    if (!('innerWidth' in window)) {
        a = 'client';
        e = document.documentElement || document.body;
    }
    if (e[ a + 'Width' ] >= MqL) {
        return true;
    } else {
        return false;
    }
}

function moveNavigation() {
    var navigation = $('.cd-nav');
    var desktop = checkWindowWidth();
    if (desktop) {
        navigation.detach();
        navigation.insertBefore('.cd-header-buttons');
    } else {
        navigation.detach();
        navigation.insertAfter('.cd-main-content');
    }
}