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May 27, 2022 15:48
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Collaborative Drawing App files as of article 2
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| <html> | |
| <head> | |
| <title>Collaborative Drawing App</title> | |
| <style type="text/css"> | |
| canvas { | |
| border: 1px solid black; | |
| } | |
| .palette { | |
| border: 1px solid black; | |
| display: inline-block; | |
| margin: 2px; | |
| height: 25px; | |
| width: 25px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Collaborative Drawing App</h1> | |
| <div> | |
| <canvas id="canvas" height="500px" width="500px"></canvas><br /> | |
| </div> | |
| <div id="palette"> | |
| <div id="row-1"> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| </div> | |
| <div id="row-2"> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| <div class="palette"></div> | |
| </div> | |
| </div> | |
| <script type="text/javascript" src="./script.js"></script> | |
| <script type="text/javascript"> | |
| const canvas = new Canvas(); | |
| const palette = new Palette(); | |
| palette.draw(); | |
| </script> | |
| </body> | |
| </html> |
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| const express = require('express'); | |
| const bodyParser = require('body-parser'); | |
| const path = require('path'); | |
| const PORT = 3000; | |
| const app = express(); | |
| app.use(bodyParser.json()); | |
| app.use(express.static(path.join(__dirname + '/../client'))); | |
| app.get('/script.js', (req, res) => { | |
| res.sendFile(path.join(__dirname + '/../client/script.js')); | |
| }); | |
| app.get('/api/test', (req, res) => { | |
| res.end('Test works!'); | |
| }); | |
| app.listen(PORT, () => { | |
| console.log(`App is live on port ${PORT}`); | |
| }); |
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| class Canvas { | |
| constructor() { | |
| this.canvas = document.querySelector('#canvas'); | |
| this.ctx = this.canvas.getContext('2d'); | |
| } | |
| } | |
| class Palette { | |
| constructor() { | |
| this.colors = [ | |
| ['#000000', '#FFFFFF', '#7F7F7F', '#C3C3C3', '#880015', '#B97A57', '#ED1C24', '#FFAEC9', '#FF7F27', '#FFC90E'], | |
| ['#FFF200', '#EFE4B0', '#22B14C', '#B5E61D', '#00A2E8', '#99D9EA', '#3F48CC', '#7092BE', '#A349A4', '#C8BFE7'] | |
| ]; | |
| } | |
| draw() { | |
| const row1 = document.querySelectorAll('#row-1 .palette'); | |
| const row2 = document.querySelectorAll('#row-2 .palette'); | |
| row1.forEach((div, idx) => { | |
| div.style.backgroundColor = this.colors[0][idx]; | |
| }); | |
| row2.forEach((div, idx) => { | |
| div.style.backgroundColor = this.colors[1][idx]; | |
| }); | |
| } | |
| } |
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