comty/packages/app/src/layout/header/index.jsx

import React from "react"
import * as antd from "antd"
import { Icons } from "components/Icons"
import { AppSearcher } from "components"
import classnames from "classnames"

import "./index.less"

export default class Header extends React.Component {
	controller = window.app["HeaderController"] = {
		toggleVisibility: (to) => {
			if (window.isMobile) {
				to = true
			}

			this.setState({ visible: to ?? !this.state.visible })
		},
		isVisible: () => this.state.visible,
	}

	state = {
		visible: false, // set by default to create an animation
	}

	componentDidMount = async () => {
		setTimeout(() => {
			this.controller.toggleVisibility(true)
		}, 100)
	}

	render() {
		return (
			<antd.Layout.Header className={classnames(`app_header`, { ["hidden"]: !window.isMobile && !this.state.visible })}>
				<div>
					<antd.Button
						onClick={window.app.openCreateNew}
						type="primary"
						shape="circle"
						icon={<Icons.Plus style={{ margin: 0 }} />}
					/>
				</div>
				{!window.isMobile &&
					<div>
						<AppSearcher />
					</div>}
			</antd.Layout.Header>
		)
	}
}