Created
August 25, 2016 07:47
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Sample page of overlay scrolling with "locked" body
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <style> | |
| .noscroll { | |
| overflow: hidden; | |
| } | |
| .content { | |
| background: linear-gradient(red, green); | |
| height: 600vh; | |
| overflow: hidden; | |
| } | |
| .overlay-wrapper { | |
| display: none; | |
| position: fixed; | |
| top: 0; | |
| left: 0; | |
| right: 0; | |
| bottom: 0; | |
| overflow-y: auto; | |
| -webkit-overflow-scrolling: touch; | |
| } | |
| .overlay-wrapper .shim { | |
| width: 1px; | |
| height: 101vh; | |
| } | |
| .overlay-wrapper .overlay-content { | |
| position: absolute; | |
| top: 100px; | |
| left: 40px; | |
| right: 40px; | |
| bottom: 80px; | |
| text-align: center; | |
| background-color: rgba(255, 255, 255, 0.75); | |
| } | |
| </style> | |
| </head> | |
| <body class=""> | |
| <div class="content"></div> | |
| <div class="overlay-wrapper"> | |
| <div class="overlay-content"> | |
| <h2>Menu Item</h2> | |
| <h2>Menu Item</h2> | |
| <h2>Menu Item</h2> | |
| <h2>Menu Item</h2> | |
| <button onclick="closeMenu();">Close Menu</button> | |
| </div> | |
| </div> | |
| <script> | |
| var content = document.getElementsByClassName('content')[0]; | |
| for (var i = 0; i < 9000; i++) { | |
| var node = document.createElement('h1'); | |
| node.innerHTML = i + ' LOREM IPSUM'; | |
| content.appendChild(node) | |
| if (!(i % 10)) { | |
| var btn = document.createElement('button'); | |
| btn.innerHTML = 'OPEN MENU'; | |
| btn.onclick = openMenu; | |
| content.appendChild(btn) | |
| } | |
| } | |
| function openMenu() { | |
| document.body.className += ' noscroll'; | |
| var overlay = document.getElementsByClassName('overlay-wrapper')[0]; | |
| var shim = document.createElement('div'); | |
| shim.setAttribute('class', 'shim'); | |
| overlay.appendChild(shim); | |
| overlay.setAttribute('style', 'display: block;'); | |
| } | |
| function closeMenu() { | |
| console.log('hi'); | |
| document.body.className = document.body.className.replace(' noscroll', ''); | |
| var overlay = document.getElementsByClassName('overlay-wrapper')[0]; | |
| overlay.setAttribute('style', ''); | |
| var shim = document.getElementsByClassName('shim')[0]; | |
| shim.parentNode.removeChild(shim); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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