npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@taito/react-sheltr

v1.0.2

Published

Shared element transition helper for React

Downloads

4

Readme

React Sheltr

Shared Element Transitions (Sh El Tr -> Sheltr) for your React applications.

Installation

npm install @taito/react-sheltr

Table of Contents

What is it?

A shared element transition is a transition between two views where some element common for both views is used to smoothly bridge the transition. In practice there can be two (or more) different elements that are transformed (scaled and translated) so that it looks like one element that morphs from one state to the other.

Under the hood React Sheltr uses the FLIP technique to do the heavy lifting for calculating and animating the shared elements.

Usage

A word of caution!

React Sheltr uses the official Context API introduced in React v16.3.0 so if you are using an older version of React than that then this module won't work 😕

Quickstart

Firstly add Sheltr provider somewhere up in the view hierarchy tree just like you would add your redux Provider or styled-components ThemeProvider. Note that it doesn't really need to be at the root level but somewhere above the SharedElement components that are used later.

import Sheltr from '@taito/react-sheltr';

<Sheltr>
  {/* other components go here */}
</Sheltr>

Then you can use SharedElement component to define and wire up your shared elements. This component use the render-prop / children as a function pattern to expose necessary props to the actual components that should be shared for the transition.

Here we have two related image components: Component A that starts the transition flow when it is clicked, which is the default behaviour, and Component B when it's unmounted.

import { SharedElement } from '@taito/react-sheltr';

// Component A
<SharedElement sharedId={id}>
  {sheltrProps => (
    <ImageA {...sheltrProps} />
  )}
</SharedElement>

// Component B
<SharedElement sharedId={id} startOnUnmount>
  {sheltrProps => (
    <ImageB {...sheltrProps} />
  )}
</SharedElement>

In some cases you might need to apply the individual sheltrProps to separate components or maybe compose them with some existing logic you have.

For this use case you can destruct the provided props and pick the ones you want. However, remember that you need to spread rest of the props to the component that should be shared.

<SharedElement sharedId={id}>
  {({ onClick, ...rest }) => (
    <Wrapper onClick={onClick}>
      <Image {...rest} />
    </Wrapper>
  )}
</SharedElement>

// Or

<SharedElement sharedId={id}>
  {({ onClick, ...rest }) => (
    <Wrapper onClick={() => {
      this.handleClick(someData);
      onClick();
    }}>
      <Image {...rest} />
    </Wrapper>
  )}
</SharedElement>

The HOC way

If you don't fancy the render-prop / children as a function pattern you can use withSheltr Higher Order Component to gain access to the underlying API and manually handle things that ShareElement would do for you.

import { withSheltr } from '@taito/react-sheltr';

class ComponentA extends Component {
  componentDidMount() {
    this.props.sheltr.transition();
  }

  handleClick = id => {
    this.props.sheltr.start(id);
  };

  render() {
    const { items, sheltr } = this.props;
    return (
      <Wrapper>
        {items.map(item => {
          return (
            <Item onClick={() => this.handleClick(item.id)}>
              <Thumbnail src={item.image} {...sheltr.getProps(item.id)} />
              {/* other things... */}
            </Item>
          );
        })}
      </Wrapper>
    );
  }
}

export default withSheltr(ComponentA);
import { withSheltr } from '@taito/react-sheltr';

class ComponentB extends Component {
  componentDidMount() {
    this.props.sheltr.transition();
  }

  componentWillUnmount() {
    this.props.sheltr.start(this.props.image.id);
  }

  render() {
    const { image, sheltr } = this.props;
    return (
      <Wrapper>
        <Img src={image.src} {...sheltr.getProps(image.id)} />
        {/* other things... */}
      </Wrapper>
    );
  }
}

export default withSheltr(ComponentB);

API Reference

* = required.

<Sheltr /> (default export)

| Prop | Type | Default | Note | |----------|----------|-------------|----------| | delay | number | 0ms | The delay for all transition animations inside Sheltr provider. | duration | number | 400ms | The duration for all transition animations inside Sheltr provider. | easing | string | "cubic-bezier(0.075, 0.82, 0.165, 1)" | Any valid css transition timing function.

<SharedElement />

| Prop | Type | Default | Note | |----------|----------|-------------|----------| | children* | func | none | | sharedId* | string | none | A unique id between two shared elements. | startOnClick | bool | true | A flag telling SharedElement to provide a click handler to start the transition flow. | startOnUnmount | bool | false | A flag telling SharedElement to start the transition flow when the component unmounts. | completeOnUnmount | bool | false | A flag telling SharedElement to complete transition flow when the component unmounts (after handling startOnUnmount related actions.

Examples

To see more real-world-like examples that use react-router and styled-components check the examples folder for two quite common use cases for shared element transitions:

  • List view with thumbnail images that morph into the header of the clicked item's detail view.
  • Simple mosaic image gallery