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Upload user avatar with a custom upload button

Upload user avatar with a custom upload button

I recently wrote on how to customize the default upload button but I want to explore more into this topic and try other options.

I designed an interface to upload a user avatar

final look

How to

We'll start with our HTML

<main> <input type="file" name="image" id="image" accept="image/*" /> <div id="preview-wrapper"> <div id="preview"></div> <button id="upload-button" aria-label="upload image" aria-describedby="image" > 🙂 </button> </div> </main>

Styling

We give some style for our user avatar.

#avatar { background-color: antiquewhite; height: 200px; width: 200px; border: 3px solid #0af; border-radius: 50%; transition: background ease-out 200ms; } #preview { position: relative; }

We then hide our input

input[type="file"] { display: none; }

Then our custom upload button

button { padding: 18px; border-radius: 50%; border: none; cursor: pointer; background-color: #08f; box-shadow: 0px 3px 5px -1px rgba(0, 0, 0, 0.2), 0px 6px 10px 0px rgba(0, 0, 0, 0.14), 0px 1px 18px 0px rgba(0, 0, 0, 0.12); transition: background-color ease-out 120ms; position: absolute; right: -5%; bottom: 0%; } button:hover { background-color: #45a; }

We've reached our design goal 🙌, but we aren't done yet.

Some JavaScript

Our initialization

const UPLOAD_BUTTON = document.getElementById("upload-button"); const FILE_INPUT = document.querySelector("input[type=file]"); const AVATAR = document.getElementById("avatar");

When our custom button is clicked, we have to programmatically click the input element

UPLOAD_BUTTON.addEventListener("click", () => FILE_INPUT.click());

To render our image

FILE_INPUT.addEventListener("change", event => { const file = event.target.files[0]; const reader = new FileReader(); reader.readAsDataURL(file); reader.onloadend = () => { AVATAR.setAttribute("aria-label", file.name); AVATAR.style.background = `url(${reader.result}) center center/cover`; }; });

WE ARE DONE!!! 🥳🥳🥳

Source code available at codepen.io and github