Create Modal Component with React Hooks
Tags: react, javascript, reacthooks, tutorial
Published: 2022-12-10 15:53:53

For this tutorial we're going to make Modal with React Hooks.

## 1. Create a button
First, let's create a button inside our `Modal.js` file

```javascript
{/* Modal.js */}

import React from 'react';

export default function Modal() {
  return (
    <div>
      <button className="btn btn-toggle btn-primary">
        Click Me!
      </button>
    </div>
  );
}
```

```css
/* style.css */

/* base */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

* {
  font-family: 'Poppins', sans-serif;
}
body {
  padding: 0;
  margin: 0;
}

/* button */
.btn {
  border: none;
  padding: 9px 18px;
  border-radius: 8px;
}
.btn-toggle {
  font-weight: 600;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%);
}
.btn-primary {
  background-color: #0085ff;
  color: #ffffff;
}
```

## 2. Create Modal
Then, add our modal code just below the button
```javascript
{/* Modal.js */}

import React from 'react';

export default function Modal() {
  return (
    <div>
      <button className="btn btn-toggle btn-primary">
        Click Me!
      </button>

      <div className="modal-container"></div>

      <div className="modal-dialog">
	      <div className="modal-content">
	        <div className="modal-header">
	          <h3>Modal Header</h3>
	          <button className="modal-close">
	            <svg
	              xmlns="http://www.w3.org/2000/svg"
	              width="25"
	              height="25"
	              preserveAspectRatio="xMidYMid meet"
	              viewBox="0 0 24 24"
	            >
	              <path
	                fill="currentColor"
	                d="M6.4 19L5 17.6l5.6-5.6L5 6.4L6.4 5l5.6 5.6L17.6 5L19 6.4L13.4 12l5.6 5.6l-1.4 1.4l-5.6-5.6Z"
	              />
	            </svg>
	          </button>
	        </div>
	        <div className="modal-body">
	          <p>
	            Lorem ipsum dolor sit amet consectetur adipisicing elit. Vitae
	            culpa, inventore alias ab atque similique quod ea reprehenderit.
	          </p>
	        </div>
	        <div className="modal-footer">
	          <button className="btn">
	            Close
	          </button>
	          <button className="btn btn-primary">Okay</button>
	        </div>
	      </div>
      </div>
    </div>
  );
}
```

```css
/* style.css */

/* modal */
.modal-container {
  width: 100%;
  min-height: 100vh;
  position: absolute;
  top: 0;
  background-color: #0000007d;
}
.modal-dialog {
  max-width: 500px;
  margin-right: auto;
  margin-left: auto;
  display: flex;
  align-items: center;
  min-height: calc(100vh - 2.1rem * 2);
  max-height: calc(100vh - 2.1rem * 2);
}
.modal-content {
  border: 1px solid #e0dcda;
  border-radius: 12px;
  background-color: #ffffff;
  position: relative;
}
.modal-header {
  border-bottom: 1px solid #e0dcda;
  padding: 14px 16px;
  border-radius: 12px 12px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header .modal-close {
  background: transparent;
  border: none;
  display: flex;
  justify-content: center;
  align-items: center;
}
.modal-header h3 {
  margin-bottom: 0;
  margin-top: 0;
  font-size: 16px;
  font-weight: 600;
}
.modal-body {
  padding: 16px;
  overflow-y: auto;
  max-height: calc(100vh - 7rem * 2);
}
.modal-footer {
  border-top: 1px solid #e0dcda;
  padding: 14px 16px;
  border-radius: 0 0 12px 12px;
  display: flex;
}
.modal-footer .btn:first-child {
  margin-right: 8px;
  margin-left: auto;
}
```

## 3. Add onClick handler

So the logic is when the `btn-toggle` is clicked, it will set state `show` to `true` and then add class `show` to `modal-dialog` and when the `modal-container` or `modal-close` button is clicked, it will set state `show` to `false` and then add class `hide` to `modal-dialog`.

```javascript
{/* Modal.js */}

import React, { useState } from 'react';

export default function Modal() {
  const [show, setShow] = useState(false);

  const handleShow = () => {
    setShow((current) => !current);
  };

  return (
    <div>
      <button className="btn btn-toggle btn-primary" onClick={handleShow}>
        Default Modal
      </button>
      <div
        className={`modal-container ${show === true ? 'show' : 'hide'}`}
        onClick={handleShow}
      ></div>
      <div className={`modal-dialog ${show === true ? 'show' : 'hide'}`}>
        <div className="modal-content">
          <div className="modal-header">
            <h3>Default Modal</h3>
            <button className="modal-close" onClick={handleShow}>
              <svg
                xmlns="http://www.w3.org/2000/svg"
                width="25"
                height="25"
                preserveAspectRatio="xMidYMid meet"
                viewBox="0 0 24 24"
              >
                <path
                  fill="currentColor"
                  d="M6.4 19L5 17.6l5.6-5.6L5 6.4L6.4 5l5.6 5.6L17.6 5L19 6.4L13.4 12l5.6 5.6l-1.4 1.4l-5.6-5.6Z"
                />
              </svg>
            </button>
          </div>
          <div className="modal-body">
            <p>
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Vitae
              culpa, inventore alias ab atque similique quod ea reprehenderit.
            </p>
          </div>
          <div className="modal-footer">
            <button className="btn" onClick={handleShow}>
              Close
            </button>
            <button className="btn btn-primary">Okay</button>
          </div>
        </div>
      </div>
    </div>
  );
}
```

```css
/* style.css */

/* important part */
.hide {
  display: none;
}
.show {
  display: flex;
}
```

## Static Modal
For static modal, simply remove the function `handleShow` in `modal-container`

```javascript
{/* Modal.js */}

{/* ... */}

{/* remove the onClick in modal-container */}
<div className={`modal-container ${show === true ? 'show' : 'hide'}`}></div>

{/* ... */}
```

## Scrollable Modal
You can also make a scrollable modal. 
Simply add `overflow-y: auto;` and `max-height` to our `modal-body` in our CSS file.

```css
/* style.css */

.modal-body {
  padding: 16px;
  overflow-y: auto;
  max-height: calc(100vh - 7rem * 2);
}
```

## With Image Inside Modal
Image can also be included inside our modal. 
Just don't forget to set our image's width to `100%` so it will fit inside our `modal-body`

```javascript
{/* Modal.js */}

{/* ... */}

{/* remove the onClick in modal-container */}
<div className="modal-body">
  <img
    className="modal-img"
    src="https://asset.kompas.com/crops/NsA-H96AvvPUMjunfBGSqylkSUI=/0x0:1000x667/750x500/data/photo/2022/07/29/62e36ad288459.jpg"
    alt="Dobberman"
  />
  <br />
  <br />
  <p>This is an image of a black dobberman</p>
</div>

{/* ... */}
```
```css
/* style.css */

.modal-img {
  width: 100%;
}
```

And just like that, you have created your own react hooks modal without any additional library. You can check the repo [here](https://github.com/NabillaTrisnani/react-hooks-modal).

Thanks for coming by and Peace ✌

---

## Author
- Github: [@NabillaTrisnani](https://github.com/NabillaTrisnani)
- LinkendIn: [Nabilla Trisnani](https://www.linkedin.com/in/nabilla-trisnani/)
- Twitter: [@NabillaTrisnani](https://twitter.com/NabillaTrisnani)