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use-async-modal

Show promised based modal imperatively using hook for React.js.

npm NPM Test Libraries.io dependency status for GitHub repo npm bundle size npm peer dependency version

Table of Contents

  1. Installation
  2. Usage
  3. Demos
  4. Contributing
  5. License

Installation

You can install package using npm or yarn:

npm i use-async-modal

yarn add use-async-modal

Usage

First, we will need a component modal to show:

export const Dialog = ({ onResolve }) => {
  return (
    <div>
      <button onClick={() => onResolve({ accepted: true })}>Accept</button>
      <button onClick={() => onResolve({ accepted: false })}>Cancel</button>
    </div>
  );
};

Then in the component we want to open a modal, we need to use useModal hook from use-async-modal package. It is necessary to add only once the ModalContainer component from use-async-modal package as high as possible in your app.

import { useModal, ModalContainer } from "use-async-modal";
import { Dialog } from "./Dialog";

export const App = () => {
    const showModal = useModal({
    Component: Dialog,

    /*
        Type: Function
        Desc: It will be invoked when the window is closed.
        Options:
          - resolved: value passed to onResolve.
    */
    onClose: ({ resolved }) => {},

    /*
        Type: Function
        Desc: It will be invoked when the window is opened.
        Options:
          - containerId: string containing attribute id for overlay in DOM,
          - containerRef: HTMLDivElement ref to overlay.
    */
    onOpen: ({ containerId, containerRef }) => {},

    /*
        Type: Object
        Desc: Inline styles applied to overlay.
    */
    overlayStyles: {
      backgroundColor: "red",
      margin: "1px"
    },

    /*
        Type: String
        Desc: Classes to be applied to overlay.
        Accept multiple classes names separated
        by space ex. "px-1 mx-2 bg-green".
    */
    overlayClassName: "px-1",

    /*
        Type: Bool
        Desc: If set to true, dialog will close
        after escape key down.
        Default value: false
    */
    closeOnEsc: true,

    /*
        Type: Bool
        Desc: If set to true, the dialog will
        close when the overlay was clicked.
        Default value: false
    */
    closeOnOverlayClick: true,

    /*
        Type: same as onResolve
        Desc: The value passed to the onResolve
        function when the dialog was closed with
        the Escape key or an overlay click.
    */
    defaultResolved: { accepted: false },

    /*
        Type: String
        Desc: Classes to be applied to overlay
        after closing. Accept multiple classes
        names separated by space.
    */
    overlayClassNameOnClose: "fade-out",

    /*
        Type: same as onResolve
        Desc: Classes to be applied to overlay
        when open. Accept multiple classes names
        separated by space.
    */
    overlayClassNameOnOpen: "fade-in",

    /*
        Type: Number (unit: ms)
        Desc: Delayed closing time expressed
        in milliseconds.
    */
    closeTimeoutMs: 1000,

    /*
        Type: Bool (default: true)
        Desc: Locking the scrollbar on the page
        when the model is open.
    */
    blockBodyScroll: true,
  });

  async function handleClick() {
    const status = await showModal();
    // { accepted: true } or { accepted: false }
  }

  /*
        necessary to add <ModalContainer /> once at the top of app
  */
  return (
    <>
      <ModalContainer />
      <button onClick={handleClick}>Open dialog</button>
    </>
  );
};

As a hook argument we pass an object with properties Component which is our modal component. showModal is a function that return promise with our value passed to function onResolve in Dialog component.

More examples of usage.

Demos

Confirm dialog

Information dialog

Dialog with input

Animated dialog

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT