panelsnap
Version:
A JavaScript plugin that provides snapping functionality to a set of panels within your interface.
106 lines (89 loc) • 2.6 kB
HTML
<html lang="en-us">
<head>
<meta charset="utf-8">
<title>PanelSnap - menu demo</title>
<meta name="viewport" content="width=device-width, initial-scale=1, minimal-ui">
<link href="https://fonts.googleapis.com/css?family=Lato:100,300" rel="stylesheet">
<link href="../../style.css" rel="stylesheet">
<script src="../../panelsnap.js" defer></script>
<script>
var menu, menuItems, panelSnapInstance;
document.addEventListener("DOMContentLoaded", function () {
menu = document.querySelector('.menu');
menuItems = menu.querySelectorAll('button');
panelSnapInstance = new PanelSnap();
panelSnapInstance.on('activatePanel', activateMenuItem);
menuItems.forEach(function (menuItem) {
menuItem.addEventListener('click', onButtonClick);
})
});
function activateMenuItem(panel) {
menuItems.forEach(function (menuItem) {
menuItem.classList.remove('active');
});
var panelName = panel.getAttribute('data-panel')
var menuItem = menu.querySelector('button[data-panel="' + panelName + '"]');
menuItem.classList.add('active');
}
function onButtonClick(e) {
var panelName = e.target.getAttribute('data-panel')
var panel = document.querySelector('section[data-panel="' + panelName + '"]');
panelSnapInstance.snapToPanel(panel);
}
</script>
<style>
section:nth-child(2) {
min-height: calc(100vh + 200px);
}
.menu {
position: fixed;
bottom: 0;
left: 0;
right: 0;
padding: 10px;
text-align: center;
z-index: 1;
display: flex;
list-style: none;
justify-content: center;
}
.menu li+li button {
margin-left: 10px;
}
button {
background: white;
font: inherit;
border: none;
padding: 4px 10px;
cursor: pointer;
}
button.active {
background: black;
color: white;
}
</style>
</head>
<body>
<section data-panel="first">
<h1>First</h1>
</section>
<section data-panel="second">
<h1>Second</h1>
</section>
<section data-panel="third">
<h1>Third</h1>
</section>
<ul class="menu">
<li>
<button data-panel="first">First</button>
</li>
<li>
<button data-panel="second">Second</button>
</li>
<li>
<button data-panel="third">Third</button>
</li>
</ul>
</body>
</html>