Components for applying animations when children elements enter or leave the DOM. Influenced by React Transition Group and Vue Transitions for the SolidJS library.
npm install solid-transition-group
# or
yarn add solid-transition-group
# or
pnpm add solid-transition-group<Transition> serve as transition effects for single element/component. The <Transition> only applies the transition behavior to the wrapped content inside; it doesn't render an extra DOM element, or show up in the inspected component hierarchy.
All props besides children are optional.
Usage with CSS is straightforward. Just add the name prop and the CSS classes will be automatically generated for you. The name prop is used as a prefix for the generated CSS classes. For example, if you use name="slide-fade", the generated CSS classes will be .slide-fade-enter, .slide-fade-enter-active, etc.
The exitting element will be removed from the DOM when the first transition ends. You can override this behavior by providing a done callback to the onExit prop.
import { Transition } from "solid-transition-group"
const [isVisible, setVisible] = createSignal(true)
<Transition name="slide-fade">
<Show when={isVisible()}>
<div>Hello</div>
</Show>
</Transition>
setVisible(false) // triggers exit transitionExample CSS transition:
.slide-fade-enter-active,
.slide-fade-exit-active {
transition: opacity 0.3s, transform 0.3s;
}
.slide-fade-enter,
.slide-fade-exit-to {
transform: translateX(10px);
opacity: 0;
}
.slide-fade-enter {
transform: translateX(-10px);
}Props for customizing the CSS classes applied by <Transition>:
| Name | Description |
|---|---|
name |
Used to automatically generate transition CSS class names. e.g. name: 'fade' will auto expand to .fade-enter, .fade-enter-active, etc. Defaults to "s". |
enterClass |
CSS class applied to the entering element at the start of the enter transition, and removed the frame after. Defaults to "s-enter". |
enterToClass |
CSS class applied to the entering element after the enter transition starts. Defaults to "s-enter-to". |
enterActiveClass |
CSS class applied to the entering element for the entire duration of the enter transition. Defaults to "s-enter-active". |
exitClass |
CSS class applied to the exiting element at the start of the exit transition, and removed the frame after. Defaults to "s-exit". |
exitToClass |
CSS class applied to the exiting element after the exit transition starts. Defaults to "s-exit-to". |
exitActiveClass |
CSS class applied to the exiting element for the entire duration of the exit transition. Defaults to "s-exit-active". |
You can also use JavaScript to animate the transition. The <Transition> component provides several events that you can use to hook into the transition lifecycle. The onEnter and onExit events are called when the transition starts, and the onBeforeEnter and onBeforeExit events are called before the transition starts. The onAfterEnter and onAfterExit events are called after the transition ends.
<Transition
onEnter={(el, done) => {
const a = el.animate([{ opacity: 0 }, { opacity: 1 }], {
duration: 600
});
a.finished.then(done);
}}
onExit={(el, done) => {
const a = el.animate([{ opacity: 1 }, { opacity: 0 }], {
duration: 600
});
a.finished.then(done);
}}
>
{show() && <div>Hello</div>}
</Transition>Events proved by <Transition> for animating elements with JavaScript:
| Name | Parameters | Description |
|---|---|---|
onBeforeEnter |
element: Element |
Function called before the enter transition starts. The element is not yet rendered. |
onEnter |
element: Element, done: () => void |
Function called when the enter transition starts. The element is rendered to the DOM. Call done to end the transition - removes the enter classes, and calls onAfterEnter. If the parameter for done is not provided, it will be called on transitionend or animationend. |
onAfterEnter |
element: Element |
Function called after the enter transition ends. The element is removed from the DOM. |
onBeforeExit |
element: Element |
Function called before the exit transition starts. The element is still rendered, exit classes are not yet applied. |
onExit |
element: Element, done: () => void |
Function called when the exit transition starts, after the exit classes are applied (enterToClass and exitActiveClass). The element is still rendered. Call done to end the transition - removes exit classes, calls onAfterExit and removes the element from the DOM. If the parameter for done is not provided, it will be called on transitionend or animationend. |
onAfterExit |
element: Element |
Function called after the exit transition ends. The element is removed from the DOM. |
By default, <Transition> will apply the transition effect to both entering and exiting elements simultaneously. You can change this behavior by setting the mode prop to "outin" or "inout". The "outin" mode will wait for the exiting element to finish before applying the transition to the entering element. The "inout" mode will wait for the entering element to finish before applying the transition to the exiting element.
By default the transition won't be applied on initial render. You can change this behavior by setting the appear prop to true.
Warning: When using
appearwith SSR, the initial transition will be applied on the client-side, which might cause a flash of unstyled content. You need to handle applying the initial transition on the server-side yourself.
moveClass- CSS class applied to the moving elements for the entire duration of the move transition. Defaults to"s-move".- exposes the same props as
<Transition>exceptmode.
<TransitionGroup> serve as transition effects for multiple elements/components.
<TransitionGroup> supports moving transitions via CSS transform. When a child's position on screen has changed after an update, it will get applied a moving CSS class (auto generated from the name attribute or configured with the move-class attribute). If the CSS transform property is "transition-able" when the moving class is applied, the element will be smoothly animated to its destination using the FLIP technique.
<ul>
<TransitionGroup name="slide">
<For each={state.items}>{item => <li>{item.text}</li>}</For>
</TransitionGroup>
</ul>Kitchen sink demo: https://solid-transition-group.netlify.app/
Source code: https://github.com/solidjs-community/solid-transition-group/blob/main/dev/src/pages/kitchen-sink.tsx
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