Homework

Flexbox keyboard

Style this HTML keyboard using flexboxes.

Ensure the following:

  • the keys are square

  • the keys shrink as the width of the browser window is changed

  • the spacebar is long

  • the rows roughly line up with a real keyboard (e.g., the Q is leftmost, the A is slightly to the right, the Z is slightly more to the right)

Optional extensions (pick and choose your favourites):

  • style the keyboard to look like your keyboard

  • add in a number row

  • generate the key HTML dynamically using JavaScript

    • show your own custom keyboard layout

  • add in shift keys

    • make them work

  • highlight keys (e.g., make them green) which have not appeared in the output textarea yet

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Flexbox Keyboard</title>
    <link rel="stylesheet" href="keyboard.css">
</head>
<body>
    <textarea id="output"></textarea>
    <div class="keyboard">
        <div class="row" id="row-0">
            <button class="key">q</button>
            <button class="key">w</button>
            <button class="key">e</button>
            <button class="key">r</button>
            <button class="key">t</button>
            <button class="key">y</button>
            <button class="key">u</button>
            <button class="key">i</button>
            <button class="key">o</button>
            <button class="key">p</button>
        </div>
        <div class="row" id="row-1">
            <button class="key">a</button>
            <button class="key">s</button>
            <button class="key">d</button>
            <button class="key">f</button>
            <button class="key">g</button>
            <button class="key">h</button>
            <button class="key">j</button>
            <button class="key">k</button>
            <button class="key">l</button>
        </div>
        <div class="row" id="row-2">
            <button class="key">z</button>
            <button class="key">x</button>
            <button class="key">c</button>
            <button class="key">v</button>
            <button class="key">b</button>
            <button class="key">n</button>
            <button class="key">m</button>
        </div>
        <div class="row" id="row-3">
            <button class="key">&#9249;</button>
            <button class="key" id="spacebar"> </button>
            <button class="key">&#9249; all</button>
        </div>
    </div>

    <script>
        let output = document.getElementById('output');
        let keys = document.getElementsByClassName('key');
        for (let keyElement of keys) {
            let key = keyElement.textContent;
            keyElement.addEventListener('click', function() {
                switch (key) {
                    case '␡':
                        output.textContent = output.textContent.slice(0, output.textContent.length-1);
                        break;
                    case '␡ all':
                        output.textContent = '';
                        break;
                    default:
                        output.textContent += key;
                }
            });
        }
    </script>
</body>
</html>
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