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Hex editor clock
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="content-type" content="text/html; charset=utf-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"/> | |
| <link rel="stylesheet" href="style.css" type="text/css" media="all" charset="utf-8"> | |
| <script src="script.js" type="text/javascript"></script> | |
| <title>Hex editor</title> | |
| </head> | |
| <body> | |
| <section class="fixedwidth"> | |
| <section class="fake"><!-- | |
| --><span class="address"></span><!-- | |
| --><span class="hex"><!-- | |
| --><span class="dummy"></span><!-- | |
| --><span class="dummy"></span><!-- | |
| --></span><!-- | |
| --><span class="str"></span><!-- | |
| --></section> | |
| <section class="current"><!-- | |
| --><span class="address"></span><!-- | |
| --><span class="hex"><!-- | |
| --><span class="selected"></span><!-- | |
| --></span><!-- | |
| --><span class="str"></span><!-- | |
| --></section> | |
| </section> | |
| </body> | |
| </html> | |
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| function getTime() { | |
| var dateObj = new Date(); | |
| var year = dateObj.getFullYear(); | |
| var month = dateObj.getMonth() + 1; | |
| var date = dateObj.getDate(); | |
| var hours = dateObj.getHours(); | |
| var minutes = dateObj.getMinutes(); | |
| var dateString = ('0000' + year).slice(-4) + | |
| ('00' + month).slice(-2) + | |
| ('00' + date).slice(-2); | |
| var timeString = ('00' + hours).slice(-2) + | |
| ('00' + minutes).slice(-2); | |
| return { | |
| date: dateString, | |
| time: timeString, | |
| }; | |
| } | |
| function makeRandomHex(length) { | |
| return ('00000000' + (Math.random()*0xff).toString(16)).slice(-length); | |
| } | |
| function getHexChar(str) { | |
| var result = ''; | |
| str = str.replace(/\s/gi, ''); | |
| for (var i = 0; i < str.length; i += 2) { | |
| var hex = str.slice(i, i + 2); | |
| var number = parseInt(hex, 16); | |
| var ch = String.fromCharCode(number); | |
| if (/[ -~]/.test(ch)) { | |
| result += ch; | |
| } else { | |
| result += '.'; | |
| } | |
| } | |
| return result; | |
| } | |
| function shuffleClock() { | |
| var sections = document.querySelector('.fixedwidth'); | |
| var currentHex = document.querySelector('.current .hex'); | |
| for (var i = sections.children.length; i > 1; i -= 1) { | |
| sections.appendChild( | |
| sections.children[Math.floor(Math.random() * i)]); | |
| } | |
| for (var i = currentHex.children.length; i > 1; i -= 1) { | |
| currentHex.appendChild( | |
| currentHex.children[Math.floor(Math.random() * i)]); | |
| } | |
| } | |
| function updateClock() { | |
| var times = getTime(); | |
| shuffleClock(); | |
| var rows = document.querySelectorAll('.fixedwidth section'); | |
| var dummys = document.querySelectorAll('.dummy'); | |
| var current = document.querySelector('.current'); | |
| var offset = 0; | |
| while ((current = current.previousSibling) != null) { | |
| if (current instanceof Element) { | |
| offset -= 1; | |
| } | |
| } | |
| document.querySelector('.current .selected').textContent = times.time + ' '; | |
| for (var i = 0; i < dummys.length; i += 1) { | |
| dummys[i].textContent = makeRandomHex(4) + ' '; | |
| } | |
| for (var i = 0; i < rows.length; i += 1) { | |
| var row = rows[i]; | |
| var address = ('00000000' + (parseInt(times.date, 16) + offset + i).toString(16)).slice(-8); | |
| var hexElement = row.querySelector('.hex'); | |
| row.querySelector('.address').textContent = address + ' '; | |
| row.querySelector('.str').textContent = getHexChar(hexElement.textContent); | |
| } | |
| setTimeout(updateClock, 60000 - Date.now() % 60000); | |
| } | |
| function initialise() { | |
| var current = document.querySelector('.current'); | |
| var currentHex = document.querySelector('.current .hex'); | |
| var fake = document.querySelector('.fake'); | |
| var dummy = document.querySelector('.dummy'); | |
| var tester = document.createElement('span'); | |
| var fontWidth; | |
| var fontHeight; | |
| tester.textContent = 'm'; | |
| tester.classList.add('dummy'); | |
| document.querySelector('.fixedwidth .fake').appendChild(tester); | |
| fontWidth = tester.offsetWidth; | |
| fontHeight = tester.offsetHeight; | |
| console.log(fontWidth, fontHeight); | |
| tester.remove(); | |
| console.log(((document.body.offsetWidth / (fontWidth)) - 8) / 6); | |
| for (var i = 2; i < ((document.body.offsetWidth / (fontWidth)) - 10) / 7; i += 1) { | |
| dummy.parentElement.appendChild(dummy.cloneNode(true)); | |
| currentHex.appendChild(dummy.cloneNode(true)); | |
| } | |
| dummy.remove(); | |
| for (var i = 2; i < (window.innerHeight / fontHeight); i += 1) { | |
| fake.parentElement.appendChild(fake.cloneNode(true)); | |
| } | |
| fake.remove(); | |
| setTimeout(updateClock, 0); | |
| } | |
| window.addEventListener('load', initialise); |
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| html { | |
| background: black; | |
| text-align: center; | |
| font-size: 20px; | |
| } | |
| .fixedwidth { | |
| display: inline-block; | |
| font-family: 'ubuntu mono', monospace; | |
| text-align: left; | |
| color: grey; | |
| white-space: nowrap; | |
| letter-spacing: 0em; | |
| } | |
| .current .address, .selected { | |
| color: red; | |
| font-weight: bold; | |
| border-radius: 4px; | |
| } |
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