Panel Navigation

by mnk

HTML

<div id="switch" href="javascript:void(0)">switch</div>
<div id="container" class="panel-container">
    <div class="panel">
        <header>Panel 1</header>
        <ul>
            <li>one</li>
            <li>two</li>
            <li>three</li>
            <li>four</li>
            <li>five</li>
        </ul>
    </div>
    <div class="panel">
        <header>Panel 2</header>
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    </div>
</div>

CSS

body {
    color: #303030;
    font: 14px Helvetica;
}
header {
    background-color: #f1f1f1;
    text-align: center;
    padding: 10px;
}
.panel {
    position: absolute;
    background-color: #fff;
    opacity: 0;
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
.panel.active {
    opacity: 1;
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
.panel-container {
    position: relative;
    overflow: hidden;
    -webkit-transition: height .25s ease;
    -moz-transition: height .25s ease;
    -ms-transition: height .25s ease;
    -o-transition: height .25s ease;
    transition: height .25s ease;
    
    border: 1px solid #ccc;
    border-radius: 6px;
}
p {
    padding: 10px;
}
#switch {
    
    cursor: pointer;
    padding: 10px;
    background-color: #f9f9f9;
    display: inline-block;
    margin: 50px 0px 20px 150px;
    z-index: 1;
}
ul {
    list-style: none;
    padding: 0px;
    margin: 0;
}
li {
    border-bottom: 1px solid #ccc;
    padding: 10px;
}
li:last-child {
    border-bottom: none;
}

JavaScript

var container = $('#container');
var btn = $('#switch');

var ua = navigator.userAgent;
var isiPad = /iPad/i.test(ua) || /iPhone OS 3_1_2/i.test(ua) || /iPhone OS 3_2_2/i.test(ua);

var panels = $(".panel");

var current = 0;

function updatePosition() {
    var width = container.innerWidth();
    panels.removeClass('active');
    $.each(panels, function (index) {
        
        var targetPosition = 0;
        if (index === current) {
            $(this).addClass('active');
            targetPosition = width * -(index - current)
        } else {
            targetPosition = width * (index - current)
        }
        $(this).css({
            width: width,
            top: 0,
            left: targetPosition
        });
    });
    container.css({
        height: $(panels[current]).innerHeight()
    });
}

updatePosition();

var eventName = isiPad ? 'touchstart' : 'click';

btn.on(eventName, function () {
    if (current < panels.length - 1) {
        current++;
    } else {
        current = 0;
    }
    updatePosition();
});