How To Communicate Between Components

suppose this setup i got here

    <div>
        <DrawToolsMenu />
        <PixelArtCanvas />
    </div>

    <div>
        <DrawToolsMenu />
        <PixelArtCanvas />
    </div>

I want to PixelArtCanvas have a reference to DrawToolsMenu. How can i achieve that?

10 Replies

McBrincie212OP•4mo ago

(oops accidentally added suggestions) the reason as to why is so i can call a function that is hosted in DrawToolsMenu from PixelArtCanvas

REEEEE•4mo ago

I would use a context https://docs.solidjs.com/concepts/context

McBrincie212OP•4mo ago

ok im a bit confused on contexts how do i use them exactly, what do they serve?

REEEEE•4mo ago

You define a Provider that wraps the children that you want to have access to shared functions. In this case, you can define a Provider around DrawToolsMenu and PixelArtCanvas and place functions you want both to have access to in there. You can then access them with

const myContext = useContext(WhateverTheContextIs)

myContext.function()

const myContext = useContext(WhateverTheContextIs)

myContext.function()

McBrincie212OP•4mo ago

tbh i don't really get em im trying to watch a tutorial to learn

Grahf•4mo ago

They are generally used for global state. Like if you wanted a signal to be able to be read and set by any component in your app you'd use a context provider. You can limit them to just a group of components instead of all components too

McBrincie212OP•4mo ago

is it a good practice if i may expose a export function in the tsx?

Grahf•4mo ago

That's what I like to do......if you're doing what I think you're doing. Export a function to set and get a signal in the provider

Madaxen86•4mo ago

You can have a look at kobalte.dev's Dialog component. There's a Root which provides a context for all the components inside it https://github.com/kobaltedev/kobalte/blob/main/packages/core/src/dialog/dialog-root.tsx

GitHub

kobalte/packages/core/src/dialog/dialog-root.tsx at main · kobalted...

A UI toolkit for building accessible web apps and design systems with SolidJS. - kobaltedev/kobalte

McBrincie212OP•4mo ago

i don't like adding unnecessary bloat to my application

Gaming

Programming

How To Communicate Between Components