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import type { App } from './apiCreateApp'
import { Comment, Fragment, Static, Text } from './vnode'
import type { ComponentInternalInstance } from './component'
interface AppRecord {
id: number
app: App
version: string
types: Record<string, string | Symbol>
}
enum DevtoolsHooks {
APP_INIT = 'app:init',
APP_UNMOUNT = 'app:unmount',
COMPONENT_UPDATED = 'component:updated',
COMPONENT_ADDED = 'component:added',
COMPONENT_REMOVED = 'component:removed',
COMPONENT_EMIT = 'component:emit',
PERFORMANCE_START = 'perf:start',
PERFORMANCE_END = 'perf:end',
}
export interface DevtoolsHook {
enabled?: boolean
emit: (event: string, ...payload: any[]) => void
on: (event: string, handler: Function) => void
once: (event: string, handler: Function) => void
off: (event: string, handler: Function) => void
appRecords: AppRecord[]
/**
* Added at https://github.com/vuejs/devtools/commit/f2ad51eea789006ab66942e5a27c0f0986a257f9
* Returns whether the arg was buffered or not
*/
cleanupBuffer?: (matchArg: unknown) => boolean
}
export let devtools: DevtoolsHook
let buffer: { event: string; args: any[] }[] = []
let devtoolsNotInstalled = false
function emit(event: string, ...args: any[]) {
if (devtools) {
devtools.emit(event, ...args)
} else if (!devtoolsNotInstalled) {
buffer.push({ event, args })
}
}
export function setDevtoolsHook(hook: DevtoolsHook, target: any): void {
devtools = hook
if (devtools) {
devtools.enabled = true
buffer.forEach(({ event, args }) => devtools.emit(event, ...args))
buffer = []
} else if (
// handle late devtools injection - only do this if we are in an actual
// browser environment to avoid the timer handle stalling test runner exit
// (#4815)
typeof window !== 'undefined' &&
// some envs mock window but not fully
window.HTMLElement &&
// also exclude jsdom
// eslint-disable-next-line no-restricted-syntax
!window.navigator?.userAgent?.includes('jsdom')
) {
const replay = (target.__VUE_DEVTOOLS_HOOK_REPLAY__ =
target.__VUE_DEVTOOLS_HOOK_REPLAY__ || [])
replay.push((newHook: DevtoolsHook) => {
setDevtoolsHook(newHook, target)
})
// clear buffer after 3s - the user probably doesn't have devtools installed
// at all, and keeping the buffer will cause memory leaks (#4738)
setTimeout(() => {
if (!devtools) {
target.__VUE_DEVTOOLS_HOOK_REPLAY__ = null
devtoolsNotInstalled = true
buffer = []
}
}, 3000)
} else {
// non-browser env, assume not installed
devtoolsNotInstalled = true
buffer = []
}
}
export function devtoolsInitApp(app: App, version: string): void {
emit(DevtoolsHooks.APP_INIT, app, version, {
Fragment,
Text,
Comment,
Static,
})
}
export function devtoolsUnmountApp(app: App): void {
emit(DevtoolsHooks.APP_UNMOUNT, app)
}
export const devtoolsComponentAdded: DevtoolsComponentHook =
/*@__PURE__*/ createDevtoolsComponentHook(DevtoolsHooks.COMPONENT_ADDED)
export const devtoolsComponentUpdated: DevtoolsComponentHook =
/*@__PURE__*/ createDevtoolsComponentHook(DevtoolsHooks.COMPONENT_UPDATED)
const _devtoolsComponentRemoved = /*@__PURE__*/ createDevtoolsComponentHook(
DevtoolsHooks.COMPONENT_REMOVED,
)
export const devtoolsComponentRemoved = (
component: ComponentInternalInstance,
): void => {
if (
devtools &&
typeof devtools.cleanupBuffer === 'function' &&
// remove the component if it wasn't buffered
!devtools.cleanupBuffer(component)
) {
_devtoolsComponentRemoved(component)
}
}
type DevtoolsComponentHook = (component: ComponentInternalInstance) => void
/*@__NO_SIDE_EFFECTS__*/
function createDevtoolsComponentHook(
hook: DevtoolsHooks,
): DevtoolsComponentHook {
return (component: ComponentInternalInstance) => {
emit(
hook,
component.appContext.app,
component.uid,
component.parent ? component.parent.uid : undefined,
component,
)
}
}
export const devtoolsPerfStart: DevtoolsPerformanceHook =
/*@__PURE__*/ createDevtoolsPerformanceHook(DevtoolsHooks.PERFORMANCE_START)
export const devtoolsPerfEnd: DevtoolsPerformanceHook =
/*@__PURE__*/ createDevtoolsPerformanceHook(DevtoolsHooks.PERFORMANCE_END)
type DevtoolsPerformanceHook = (
component: ComponentInternalInstance,
type: string,
time: number,
) => void
function createDevtoolsPerformanceHook(
hook: DevtoolsHooks,
): DevtoolsPerformanceHook {
return (component: ComponentInternalInstance, type: string, time: number) => {
emit(hook, component.appContext.app, component.uid, component, type, time)
}
}
export function devtoolsComponentEmit(
component: ComponentInternalInstance,
event: string,
params: any[],
): void {
emit(
DevtoolsHooks.COMPONENT_EMIT,
component.appContext.app,
component,
event,
params,
)
}
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