LottiePalette

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Intro

LottiePalette is a runtime util which can change the color of Lottie ani in single frame, for now it only support SVG renderer.

Demo：LottiePaletteViewer

Install

npm install lottie-palette
# or 
yarn add lottie-palette

or just include the compiled file to your page:

<script src="./lottie-palette.js"></script>

Usage

⚠️ PS：LottiePalette is not include Lottie, please import Lottie additionally.

import Lottie from 'lottie-web/build/player/lottie_svg'
import LottiePalette from 'lottie-palette'
 
let lp = null
 
const lottie = Lottie.loadAnimation({
  container: document.getElementById('#lottie-wrapper'),
  renderer: 'svg',
  loop: true,
  autoplay: true,
  path,
  rendererSettings: {
    progressiveLoad: false // 2 make sure paths were loaded after DOMLoaded event
  }
})
 
lottie.addEventListener('DOMLoaded', () => {
  lp = new LottiePalette(document.getElementById('#lottie-wrapper'))
  // Instance will generate a color map
})
 
// You can change the black color paths 2 white via this：
lp.updateColor('rgb(0, 0, 0)', '#fff', true)
// or
lp.updateColor('#000', 'rgb(255, 255, 255)', true)

⚠️ PS：

1. If you want 2 update the color of the same elements (which have same color) multiple times, make sure that the first parameter of updateColor() is the inital color (when LottiePalette is instantiated or update map), if you want to refresh the color map, execute the updateMaps() function.
2. Instantiating LottiePalette in DOMLoaded event perform well at most cases. In case the color is missing, (for example, the color of the ani is dynamical), please manage the initialization of LottiePalette or just use updateMaps().

Methods

Method	Description	Arguments	Returns
[[Constructor]]	the Constructor of LottiePalette	$element:Element SVG Element 2 init
updateColor	update single color	key:String initial color（accept rgb, hex format) value:String new color value isUpdateGrad: Boolean update gradient or not
updateLinearGrads	update linear gradient（recommand 2 use updateColor)	key:String initial gradient lottie-palette-id value:String new gradient lottie-palette-id
updateLinearGradColor	update single color of linear gradient	key:String initial color（accept rgb, hex format) value:String new color value
getInitColors	get all initial colors		:Array, foramt: rgb
getInitLinearGrads	get all initial linear gradient	type:String the format of array's item ('css'	'id') , default: 'css'
updateMaps	update color map