A collection of composable behaviors for your Stimulus Controllers
- New lifecycle behaviors: adds new standard behaviors to your Stimulus controllers.
- Composable: compose at will different behaviors in a single controller with mixins.
- Modular: built as ES6 modules, just import what you need and tree shaking will remove the rest.
- Typescript: Types available, better autocompletion.
- Tiny: 3k gzip + tree shaking 🌳🌳🌳
yarn add stimulus-use@beta. All contribution to Stimulus 3 features are now on the stimulus-3 branch
npm
npm i stimulus-useyarn
yarn add stimulus-useWe got you covered 👉 stimulus-use.github.io/stimulus-use
This set of mixins is built around the Observer APIs and custom events to enhance your controllers with new behaviors.
| Mixin | Description | NEW Callbacks |
|---|---|---|
useClickOutside | Tracks the clicks outside of the element and adds a new lifecycle callback clickOutside. | clickOutside |
useHotkeys | Registers hotkeys using the hotkeys-js library and binds them to handler methods | |
useHover | Tracks the user's mouse movements over an element and adds mouseEnter and mouseLeave callbacks to your controller. | mouseEnter mouseLeave |
useIdle | Tracks if the user is idle on your page and adds away and back callbacks to your controller. | awayback |
useIntersection | Tracks the element's intersection and adds appear, disappear callbacks to your controller. | appeardisappear |
useMatchMedia | Tracks if the window matches a media query string. | is[Name], not[Name] and [name]Changed |
useMutation | Tracks mutations on an element, its attributes and/or subtree. Adds a mutate callback to your controller. | mutate |
useResize | Tracks the element's size and adds a new lifecycle callback resize. | resize |
useTargetMutation | Tracks when targets are added or removed from the controller's scope, or their contents changed. Adds [target]TargetAdded , [target]TargetRemoved and [target]TargetChanged callback to your controller for each specified target. | [target]TargetAdded [target]TargetRemoved [target]TargetChanged |
useVisibility | Tracks the page visibility and adds visible, invisible callbacks to your controller. | visibleinvisible |
useWindowFocus | Tracks the window focus and adds focus, unfocs callbacks to your controller. | focusunfocus |
useWindowResize | Tracks the size of the window object and adds a new lifecycle callback windowResize. | windowResize |
A set of mixin to optimize performances.
| Mixin | Description |
|---|---|
useDebounce | Adds the ability to specify an array "debounces" of functions to debounce. |
useMemo | Memoize expensive getters by mixing in useMemo and adding a static memos array. |
useThrottle | Adds the ability to specify an array "throttles" of functions to throttle. |
A set of mixin and controllers to build animations.
| Mixin | Description |
|---|---|
useTransition | Mixin or controller to apply classes to various stages of an element's transition. |
| Mixin | Description |
|---|---|
useApplication, ApplicationController | supercharged controller for your application. |
useDispatch | Adds a dispatch helper function to emit custom events. Useful to communicate between different controllers. |
useMeta | Adds getters to easily access meta values. |
Stimulus-use can be used in two ways: composing with mixins or extending built-in controllers
Composing with mixins
This is the prefered approach as it bring the most flexibility. Simply import a mixin and apply it in the connect or initialize to adds new behaviors to you controller. You can combine several mixins within the same controller.
import { Controller } from 'stimulus' import { useIntersection, useResize } from 'stimulus-use' export default class extends Controller { connect() { useIntersection(this) useResize(this) } appear(entry) { // triggered when the element appears within the viewport } resize({ height, width }) { // trigered when the element is resized } }Extending built-in controllers
You can create your Stimulus controller from a pre-built Stimulus-use controller which offers the new behavior you're looking for. This method works perfectly when you only need a single behavior for your controller.
import { IntersectionController } from 'stimulus-use' export default class extends IntersectionController { appear(entry) { // triggered when the element appears within the viewport } }Made with ❤️ by @adrienpoly and all these wonderful contributors (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!
Continuous integration and cross browser testing is generously provided Sauce Labs.
