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getCurrentInstance,
DeprecationTypes,
LegacyConfig,
compatUtils,
ComponentInternalInstance
} from '@vue/runtime-core'
import { hyphenate, isArray } from '@vue/shared'
const systemModifiers = ['ctrl', 'shift', 'alt', 'meta']
type KeyedEvent = KeyboardEvent | MouseEvent | TouchEvent
const modifierGuards: Record<
string,
(e: Event, modifiers: string[]) => void | boolean
> = {
stop: e => e.stopPropagation(),
prevent: e => e.preventDefault(),
self: e => e.target !== e.currentTarget,
ctrl: e => !(e as KeyedEvent).ctrlKey,
shift: e => !(e as KeyedEvent).shiftKey,
alt: e => !(e as KeyedEvent).altKey,
meta: e => !(e as KeyedEvent).metaKey,
left: e => 'button' in e && (e as MouseEvent).button !== 0,
middle: e => 'button' in e && (e as MouseEvent).button !== 1,
right: e => 'button' in e && (e as MouseEvent).button !== 2,
exact: (e, modifiers) =>
systemModifiers.some(m => (e as any)[`${m}Key`] && !modifiers.includes(m))
}
/**
* @private
*/
export const withModifiers = (fn: Function, modifiers: string[]) => {
return (event: Event, ...args: unknown[]) => {
for (let i = 0; i < modifiers.length; i++) {
const guard = modifierGuards[modifiers[i]]
if (guard && guard(event, modifiers)) return
}
return fn(event, ...args)
}
}
// Kept for 2.x compat.
// Note: IE11 compat for `spacebar` and `del` is removed for now.
const keyNames: Record<string, string | string[]> = {
esc: 'escape',
space: ' ',
up: 'arrow-up',
left: 'arrow-left',
right: 'arrow-right',
down: 'arrow-down',
delete: 'backspace'
}
/**
* @private
*/
export const withKeys = (fn: Function, modifiers: string[]) => {
let globalKeyCodes: LegacyConfig['keyCodes']
let instance: ComponentInternalInstance | null = null
if (__COMPAT__) {
instance = getCurrentInstance()
if (
compatUtils.isCompatEnabled(DeprecationTypes.CONFIG_KEY_CODES, instance)
) {
if (instance) {
globalKeyCodes = (instance.appContext.config as LegacyConfig).keyCodes
}
}
if (__DEV__ && modifiers.some(m => /^\d+$/.test(m))) {
compatUtils.warnDeprecation(
DeprecationTypes.V_ON_KEYCODE_MODIFIER,
instance
)
}
}
return (event: KeyboardEvent) => {
Iif (!('key' in event)) {
return
}
const eventKey = hyphenate(event.key)
if (modifiers.some(k => k === eventKey || keyNames[k] === eventKey)) {
return fn(event)
}
if (__COMPAT__) {
const keyCode = String(event.keyCode)
if (
compatUtils.isCompatEnabled(
DeprecationTypes.V_ON_KEYCODE_MODIFIER,
instance
) &&
modifiers.some(mod => mod == keyCode)
) {
return fn(event)
}
if (globalKeyCodes) {
for (const mod of modifiers) {
const codes = globalKeyCodes[mod]
if (codes) {
const matches = isArray(codes)
? codes.some(code => String(code) === keyCode)
: String(codes) === keyCode
if (matches) {
return fn(event)
}
}
}
}
}
}
}
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