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Add some more lazy loading for smaller bundle size #4750

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Jan 7, 2025
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56 changes: 14 additions & 42 deletions packages/core/ui/Snackbar.tsx
Original file line number Diff line number Diff line change
@@ -1,15 +1,12 @@
import CloseIcon from '@mui/icons-material/Close'
import {
Alert,
Button,
IconButton,
Snackbar as MUISnackbar,
} from '@mui/material'
import { Suspense, lazy } from 'react'

import { observer } from 'mobx-react'

import type { AbstractSessionModel } from '../util'
import type { SnackbarMessage } from './SnackbarModel'

const SnackbarContents = lazy(() => import('./SnackbarContents'))

interface SnackbarSession extends AbstractSessionModel {
snackbarMessages: SnackbarMessage[]
popSnackbarMessage: () => void
Expand All @@ -19,42 +16,17 @@ const Snackbar = observer(function ({ session }: { session: SnackbarSession }) {
const { snackbarMessages } = session
const latestMessage = snackbarMessages.at(-1)

const handleClose = (_event: unknown, reason?: string) => {
if (reason !== 'clickaway') {
session.popSnackbarMessage()
}
}
return latestMessage ? (
<MUISnackbar
open
onClose={handleClose}
anchorOrigin={{ vertical: 'bottom', horizontal: 'center' }}
>
<Alert
onClose={handleClose}
action={
latestMessage.action ? (
<>
<Button
color="inherit"
onClick={e => {
latestMessage.action?.onClick()
handleClose(e)
}}
>
{latestMessage.action.name}
</Button>
<IconButton color="inherit" onClick={handleClose}>
<CloseIcon />
</IconButton>
</>
) : null
}
severity={latestMessage.level || 'warning'}
>
{latestMessage.message}
</Alert>
</MUISnackbar>
<Suspense fallback={null}>
<SnackbarContents
onClose={(_event, reason) => {
if (reason !== 'clickaway') {
session.popSnackbarMessage()
}
}}
contents={latestMessage}
/>
</Suspense>
) : null
})

Expand Down
50 changes: 50 additions & 0 deletions packages/core/ui/SnackbarContents.tsx
Original file line number Diff line number Diff line change
@@ -0,0 +1,50 @@
import CloseIcon from '@mui/icons-material/Close'
import {
Alert,
Button,
IconButton,
Snackbar as MUISnackbar,
} from '@mui/material'

import type { SnackbarMessage } from './SnackbarModel'

export default function SnackbarContents({
onClose,
contents,
}: {
onClose: (_event: unknown, reason?: string) => void
contents: SnackbarMessage
}) {
return (
<MUISnackbar
open
onClose={onClose}
anchorOrigin={{ vertical: 'bottom', horizontal: 'center' }}
>
<Alert
onClose={onClose}
action={
contents.action ? (
<>
<Button
color="inherit"
onClick={e => {
contents.action?.onClick()
onClose(e)
}}
>
{contents.action.name}
</Button>
<IconButton color="inherit" onClick={onClose}>
<CloseIcon />
</IconButton>
</>
) : null
}
severity={contents.level || 'warning'}
>
{contents.message}
</Alert>
</MUISnackbar>
)
}
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