Jeremy Keith adactio
adactio
/ beforeInstallPrompt.js
Created
August 3, 2018 09:31
Show a dismissable option to add The Session to the home screen (only shown to logged in users).
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| (function (win, doc) { | |
| win.addEventListener('beforeinstallprompt', function (e) { | |
| e.preventDefault(); | |
| var deferredPrompt = e; | |
| var insertionPoint = doc.querySelector('main .contents'); | |
| insertionPoint.insertAdjacentHTML('afterbegin',` | |
| <div class="feedback" role="dialog" aria-labelledby="homescreen"> | |
| <h2 id="homescreen">Install The Session</h2> | |
| <p>Would you like to add The Session to your home screen?</p> | |
| <button class="back">No, thanks</button> |
adactio
/ trimCache.js
Last active
May 2, 2025 12:59
A recursive function to limit the number of items in a specified cache.
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| // Limit the number of items in a specified cache. | |
| function trimCache(cacheName, maxItems) { | |
| caches.open(cacheName) | |
| .then( cache => { | |
| cache.keys() | |
| .then(keys => { | |
| if (keys.length > maxItems) { | |
| cache.delete(keys[0]) | |
| .then( () => { | |
| trimCache(cacheName, maxItems) |
adactio
/ minimal-serviceworker.js
Last active
August 18, 2023 09:15
An attempt at a minimal viable service worker.
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| // Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication | |
| // http://creativecommons.org/publicdomain/zero/1.0/ | |
| // HTML files: try the network first, then the cache. | |
| // Other files: try the cache first, then the network. | |
| // Both: cache a fresh version if possible. | |
| // (beware: the cache will grow and grow; there's no cleanup) | |
| const cacheName = 'files'; |
adactio
/ playSparkline.js
Last active
June 11, 2023 21:17
A function to convert numbers into sound.
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| // Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication | |
| // http://creativecommons.org/publicdomain/zero/1.0/ | |
| // Pass in an array of numbers ranging from 0 to 20. | |
| function playSparkline(notes) { | |
| if (!window.AudioContext && !window.webkitAudioContext) { | |
| return; | |
| } | |
| var playing = null; |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title></title> | |
| </head> | |
| <body> | |
| </body> |
adactio
/ monthmap.php
Last active
December 27, 2018 07:21
Display a heat calendar for a month of data.
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| <?php | |
| // Create an array of timestamps for posts | |
| // and put them into an array called $timestamps. | |
| foreach ($timestamps as $timestamp) { | |
| $day = date("j", $timestamp); | |
| $hour = date("G", $timestamp); | |
| if (isset($heatcalendar['posts'][$day][$hour])) { | |
| $heatcalendar['posts'][$day][$hour]++; |
adactio
/ linkTwitterProfiles.php
Created
February 2, 2017 23:45
A regular expression for turning a word beginning with @ into a link to a Twitter profile.
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| <?php | |
| $string = preg_replace( | |
| '/(?<=^|\s)@([a-z0-9_]+)/i', | |
| '<a href="https://twitter.com/$1">@$1</a>', | |
| $string | |
| ); | |
| ?> |
adactio
/ yourdomain.com.conf
Last active
December 13, 2016 13:48
HTTPS domain settings on Apache 2.4.7: https://adactio.com/journal/10727
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| <VirtualHost *:80> | |
| ServerAdmin [email protected] | |
| ServerName yourdomain.com | |
| ServerAlias www.yourdomain.com | |
| DocumentRoot /path/to/yourdomain | |
| Redirect / https://yourdomain.com/ | |
| </VirtualHost> | |
| <VirtualHost *:443> | |
| ServerAdmin [email protected] |
adactio
/ formProgress.js
Created
May 29, 2016 15:27
Show a progress bar with every form that has a method of POST. Particularly nice if there's a file upload involved.
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| // Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication | |
| // http://creativecommons.org/publicdomain/zero/1.0/ | |
| (function (win, doc) { | |
| 'use strict'; | |
| if (!win.XMLHttpRequest || !win.FormData || !win.addEventListener || !doc.querySelectorAll) { | |
| // doesn't cut the mustard. | |
| return; | |
| } | |
| function hijaxForm (formElement) { | |
| var progressBar; |
adactio
/ aria-controls.js
Last active
March 8, 2024 07:07
Show and hide content with "aria-controls" buttons.
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| // Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication | |
| // http://creativecommons.org/publicdomain/zero/1.0/ | |
| (function (win, doc) { | |
| 'use strict'; | |
| if (!doc.querySelectorAll || !win.addEventListener) { | |
| // doesn't cut the mustard. | |
| return; | |
| } | |
| var toggles = doc.querySelectorAll('[aria-controls]'); | |
| var togglecount = toggles.length; |