react-colorpicker

LiveDemo

Install

$ yarn add @caohenghu/react-colorpicker

Example

import ColorPicker from '@caohenghu/react-colorpicker'
export default class App extends React.Component {
    constructor(props) {
        super(props)
        this.changeColor = this.changeColor.bind(this)
        this.openSucker = this.openSucker.bind(this)
        this.state = {
            color: '#59c7f9',
            suckerCanvas: null,
            suckerArea: []
        }
    }
    render() {
        return (
            <div style={background: color}>
                <ColorPicker
                    theme="light"
                    color={this.state.color}
                    suckerHide={false}
                    suckerCanvas={this.state.suckerCanvas}
                    suckerArea={this.state.suckerArea}
                    changeColor={this.changeColor}
                    openSucker={this.openSucker}
                />
            </div>
        )
    }
    changeColor(color) {
        const { r, g, b, a } = color.rgba
        this.setState({
            color: `rgba(${r},${g},${b},${a})`
        })
    }
    openSucker(isOpen) {
        if (isOpen) {
            // ... canvas be created, and get the area of canvas
            // this.setState({
            //     suckerCanvas: canvas,
            //     suckerArea:  [x1, y1, x2, y2]
            // })
        } else {
            // this.state.suckerCanvas && this.state.suckerCanvas.remove()
        }
    }
}

Options

Events

if you want use sucker, then openSucker, sucker-hide, sucker-canvas, sucker-area is necessary. when you click sucker button, you can click it again or press key of esc to exit.