tldraw/components/status-bar.tsx
2021-05-12 22:11:17 +01:00

61 lines
1.3 KiB
TypeScript

import { useStateDesigner } from "@state-designer/react"
import state from "state"
import styled from "styles"
import { useRef } from "react"
export default function StatusBar() {
const local = useStateDesigner(state)
const { count, time } = useRenderCount()
const active = local.active.slice(1).map((s) => s.split("root.")[1])
const log = local.log[0]
return (
<StatusBarContainer>
<Section>{active.join(" | ")}</Section>
<Section>| {log}</Section>
<Section title="Renders | Time">
{count} | {time.toString().padStart(3, "0")}
</Section>
</StatusBarContainer>
)
}
const StatusBarContainer = styled("div", {
position: "absolute",
bottom: 0,
left: 0,
width: "100%",
height: 40,
userSelect: "none",
borderTop: "1px solid black",
gridArea: "status",
display: "grid",
gridTemplateColumns: "auto 1fr auto",
alignItems: "center",
backgroundColor: "white",
gap: 8,
fontSize: "$1",
padding: "0 16px",
zIndex: 200,
})
const Section = styled("div", {
whiteSpace: "nowrap",
overflow: "hidden",
})
function useRenderCount() {
const rTime = useRef(Date.now())
const rCounter = useRef(0)
rCounter.current++
const now = Date.now()
let time = now - rTime.current
if (time > 100) {
time = 0
}
rTime.current = now
return { count: rCounter.current, time }
}