react-modal-global

React Modal Global

Introduction

This is a package that provides modal dialogs which does similar to react-modal except that it is accessed from anywhere.

Motivation

It is often to happen that in the function context, for example fetchMyLovelyData, after some, probably async, actions, you need to open a Modal. In react-modal you add Modal component to your components tree and this approach requires doing so each time you want a modal to exist, it may cause some unwanted overlaping, is a bit of boilerplate code and inflicts a holder of this Modal to control the isOpen state and other parameters. Also, use of different types of modal with same controller.

Likely to create a package that would solve these problems while still covering most of use cases.

How it works

• The package uses only react as a dependency.
• Relies on react context to transfer information between ModalContainer and modal components.

The main idea

There is a ModalContainer which is a container for modal components (it usually appears in #root element) and modal components will appear there as you open them.

Show `ModalContainer` usage example

import React from "react"
import ReactDOM from "react-dom"
import { ModalContainer } from "react-modal-global"

function App() {
  return (
    <>
      {/* ... Other components ... */}
      <ModalContainer />
    </>
  )
}

ReactDOM.render(<App />, document.getElementById("root"))

There are other features upon this idea.

Usage

Usage may seem a bit complicated, please, be patient and read all the thing throughout.

Create new Modal component

All it needs for creating such is a valid JSX.Element:

Plain component

// Arrow function
const ModalComponent = () => <>:3</>
// Plain function
function ModalComponent() {
  return <>:3</>
}

Using modal context

function ModalComponent() {
  const modal = useModalContext() // Getting modal context of current component

  return (
    <>
      <h2>Title</h2>
      <p>Content text</p>
      
      <button type="button" onClick={() => modal.close()}>My custom button to close modal</button>
    </>
  )
}

Modal component usage

Note that PopupLogin should have its own styles to look like a popup, it is advised to use custom PopupLayout (Learn below).

import "react-modal-global/styles/modal.scss" // import default styles if should

import { Modal } from "react-modal-global"

import PopupLogin from "./PopupLogin"

function HomeView() {
  function showLoginPopup() {
    // Recommended naming is [Popup, Dialog or Modal] then [Name of a modal] i.e. DialogMyName
    Modal.open(PopupLogin, { /* Probably your options? */ })
  }
  return (
    <>
      <h2>Title</h2>
      <p>Content text</p>

      <button type="button" onClick={showLoginPopup}>Show login popup</button>
    </>
  )
}

Modal options

You can use options when opening a modal. Available options

Option	Description
id	Specifies id of a modal (default: Date.now()). In react it's used as a key. May be used to find and close specific modal or else.
closable	Specifies if a modal closing is controlled itself
weak	By default, a last closed modal will not be removed and if same modal will be request to open, it will restore previous modal but with weak: true it will not happen.
fork	Creates a new layer for a single modal

Modal layouts

To use various modal types (Dialog, Popup, Drawer), you create your own layout for each one, advised naming is [Type][Name] => DrawerLayout.

See example here

To create your first Popup modal try this

import { FormEvent } from "react"
import { useModalContext } from "react-modal-global"

import PopupLayout from "modal-layouts/PopupLayout/PopupLayout"

function PopupMyFirst() {
  const modal = useModalContext()

  function onSubmit(event: FormEvent<HTMLFormElement>) {
    event.preventDefault()

    const target = event.currentTarget
    const ageInput = target.elements.namedItem("age")

    alert(ageInput) // Show age
    modal.close() // Then close `this modal`
  }
  return (
    <PopupLayout>
      <form onSubmit={onSubmit}>
        <h2>My first popup modal</h2>
        <input name="age" placeholder="Enter your `first popup modal` age" />
        <button type="submit">See my age</button>
      </form>
    </PopupLayout>
  )
}

export default PopupMyFirst

The end.