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# @thorvg/lottie-player
A Lottie Player which uses [ThorVG](https://github.com/thorvg/thorvg) as a renderer, provides a web component for easily embedding and playing [Lottie](https://airbnb.io/lottie) animations.
# Installation
- Import from CDN
```html
<script src="https://unpkg.com/@thorvg/lottie-player@latest/dist/lottie-player.js"></script>
```
- Install from NPM
```sh
npm install @thorvg/lottie-player
```
# Usage
### With HTML (Basic Usage)
Once you import from CDN, you can access `<lottie-player/>`
```html
<lottie-player
autoPlay
loop
mode="normal"
src="https://lottie.host/6d7dd6e2-ab92-4e98-826a-2f8430768886/NGnHQ6brWA.json"
style="width: 500px; height: 500px;"
>
</lottie-player>
```
### With NPM (JS/TS)
Import the library and please follow Basic Usage, you can use library on any NPM-based project such as React, Vue and Svelte.
```ts
import '@thorvg/lottie-player';
```
### With ReactJS + TypeScript
Add `declarations.d.ts` on the root of project and make sure following declaration.
```js
declare namespace JSX {
interface IntrinsicElements {
"lottie-player": any;
}
}
```
Then you will be able to use this as same as above
```js
import '@thorvg/lottie-player';
<lottie-player
autoPlay
loop
mode="normal"
src="https://lottie.host/6d7dd6e2-ab92-4e98-826a-2f8430768886/NGnHQ6brWA.json"
style="width: 500px; height: 500px;"
>
</lottie-player>
```
### With SSR Framework
We should be careful when using on SSR frameworks such as NextJS, NuxtJS and Svelte, as it means the library must to be rendered on browser/client side.
- NextJS
```ts
import { useEffect } from "react";
export default function Home() {
// ...
useEffect(() => {
import("@thorvg/lottie-player");
});
// ...
}
```
- NuxtJS
```html
<template>
{/* ... */}
</template>
<script>
export default {
mounted() {
import("@thorvg/lottie-player");
}
}
</script>
```
- Svelte
```html
<script>
import { onMount } from 'svelte';
onMount(async () => {
await import('@thorvg/lottie-player');
});
</script>
```
# API
## Properties
| Property | Description | Type | Default Value | Required |
| --- | --- | --- | --- | --- |
| src | A graphic resource to play. It could be an internal/external URL or JSON string for Lottie. | string | undefined | Y |
| speed | Animation speed (for Lottie) | number | 1 | N |
| autoplay | When set to true, automatically plays the animation on loading it (for Lottie) | boolean | false | N |
| count | Number of times to loop the animation | number | undefined | N |
| loop | When set to true, loops the animation. The count property defines the number of times to loop the animation. Setting the count property to 0 and setting the loop to true, loops the animation indefinitely. | boolean | false | N |
| direction | Direction of the animation. Set to 1 to play the animation forward or set to -1 to play it backward. | number (1 or -1) | 1 | N |
| mode | Play mode. Setting the mode to PlayMode.Bounce plays the animation in an indefinite cycle, forwards and then backwards. | PlayMode | PlayMode.Normal | N |
| intermission | Duration (in milliseconds) to pause before playing each cycle in a looped animation. Set this parameter to 0 (no pause) or any positive number. | number | 1 | N |
## Events
You can adapt the event with the following code example
```jsx
const player = document.querySelector('lottie-player');
player.addEventListener('load', () => {
// TODO: implements
});
```
| Name | Description |
| --- | --- |
| load | A graphic resource is loaded |
| error | An animation data cant be parsed. |
| ready | Animation data is loaded and player is ready |
| play | Animation starts playing |
| pause | Animation is paused |
| stop | Animation is stopped |
| freeze | Animation is paused due to player being invisible |
| loop | An animation loop is completed |
| complete | Animation is complete (all loops completed) |
| frame | A new frame is entered |
## Methods
**Method** : `load(src: string | object)`
**Purpose** : Load and play Lottie animation
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| src | `string` or `object` | URL, or a JSON string or object representing a Lottie animation to play.
**Return Type** : `Promise<void>`
---
**Method** : `play()`
**Purpose** : Play loaded animation
**Return Type** : `void`
---
**Method** : `pause()`
**Purpose** : Pause playing animation
**Return Type** : `void`
---
**Method** : `stop()`
**Purpose** : Stop current animation
**Return Type** : `void`
---
**Method** : `seek(frame: number)`
**Purpose** : Move to a given frame
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| src | `number` | The frame number to move, shouldn't be less than 0 and greater than `totalFrame`
**Return Type** : `void`
> [!TIP]
> You can easily check total frame of animation, use `player.totalFrame`
---
**Method** : `destory()`
**Purpose** : Destroy animation and lottie-player element
**Return Type** : `void`
---
**Method** : `setLooping(value: boolean)`
**Purpose** : Enable animation loop
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| value | `boolean` | `true` enables looping, while `false` disables looping.
**Return Type** : `void`
---
**Method** : `setDirection(value: number)`
**Purpose** : Set animation direction
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| value | `number` | Direction values. `1` to play the animation forward, `-1` to play it backward.
**Return Type** : `void`
---
**Method** : `setSpeed(value: number)`
**Purpose** : Set speed of animation
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| value | `number` | Playback speed. The value must be any positive integer.
**Return Type** : `void`
---
**Method** : `setBgColor(value: string)`
**Purpose** : Set a backgroud color
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| value | `string` | Color values. Hex(#fff) or string('red') to set background color
**Return Type** : `void`
---
**Method** : `save(target: ExportableType)`
**Purpose** : Export current animation to other file type
**Parameters**
| Name | Type | Description
| --- | --- | --- |
| value | `ExportableType` | File type to export
**Return Type** : `void`
---
**Method** : `getVersion()`
**Purpose** : Return current ThorVG version
**Return Type** : `LibraryVersion`
# Examples
Please check these examples in various environments.
- [VanillaJS Usage](https://codesandbox.io/p/sandbox/thorvg-lottieplayer-vanillajs-t737qm)
- [React Usage](https://codesandbox.io/p/devbox/thorvg-lottieplayer-react-hkkrq3)
- [VueJS Usage](https://codesandbox.io/p/devbox/thorvg-lottieplayer-vue-758h3l)
- [Svelte Usage](https://codesandbox.io/p/devbox/thorvg-lottieplayer-svelte-xd4zp6)