Function DevTools

packages/devtools/src/devtools.tsx:24–231

()

import { SourceInspector } from './components/source-inspector'

export default function DevTools() {
  const { settings } = createDevtoolsSettings()
  const { setHeight } = createHeight()
  const { persistOpen, setPersistOpen } = createPersistOpen()
  const [rootEl, setRootEl] = createSignal<HTMLDivElement>()
  const [isOpen, setIsOpen] = createSignal(
    settings().defaultOpen || persistOpen(),
  )
  const pip = createPiPWindow()
  let panelRef: HTMLDivElement | undefined = undefined
  const [isResizing, setIsResizing] = createSignal(false)

  const toggleOpen = () => {
    if (pip().pipWindow) {
      return
    }
    const open = isOpen()
    const newState = !open
    setIsOpen(newState)
    setPersistOpen(newState)

    // Emit event when user toggles devtools
    devtoolsEventClient.emit('trigger-toggled', { isOpen: newState })
  }

  // Listen for trigger-toggled events to control devtools
  createEffect(() => {
    const unsubscribe = devtoolsEventClient.on('trigger-toggled', (event) => {
      if (pip().pipWindow) {
        return
      }
      const payload = event.payload as unknown as { isOpen: boolean }
      const shouldBeOpen = payload.isOpen
      if (shouldBeOpen !== isOpen()) {
        setIsOpen(shouldBeOpen)
        setPersistOpen(shouldBeOpen)
      }
    })

    onCleanup(unsubscribe)
  })
  // Used to resize the panel
  const handleDragStart = (
    panelElement: HTMLDivElement | undefined,
    startEvent: MouseEvent,
  ) => {
    if (startEvent.button !== 0) return // Only allow left click for drag
    if (!panelElement) return
    setIsResizing(true)

    const dragInfo = {
      originalHeight: panelElement.getBoundingClientRect().height,
      pageY: startEvent.pageY,
    }

    const run = (moveEvent: MouseEvent) => {
      const delta = dragInfo.pageY - moveEvent.pageY
      const newHeight =