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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | 87x 87x 87x 87x 87x 87x 87x 5301x 5301x 5301x 12x 6x 6x 2x 2x 2x 2x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 87x 304x 36x 268x 268x 268x 2x | import { extend, ShapeFlags } from '@vue/shared'
import { ComponentInternalInstance, ComponentOptions } from '../component'
import { callWithErrorHandling, ErrorCodes } from '../errorHandling'
import { VNode } from '../vnode'
import { popWarningContext, pushWarningContext } from '../warning'
import {
DeprecationTypes,
warnDeprecation,
isCompatEnabled
} from './compatConfig'
export const compatModelEventPrefix = `onModelCompat:`
const warnedTypes = new WeakSet()
export function convertLegacyVModelProps(vnode: VNode) {
const { type, shapeFlag, props, dynamicProps } = vnode
const comp = type as ComponentOptions
if (shapeFlag & ShapeFlags.COMPONENT && props && 'modelValue' in props) {
if (
!isCompatEnabled(
DeprecationTypes.COMPONENT_V_MODEL,
// this is a special case where we want to use the vnode component's
// compat config instead of the current rendering instance (which is the
// parent of the component that exposes v-model)
{ type } as any
)
) {
return
}
if (__DEV__ && !warnedTypes.has(comp)) {
pushWarningContext(vnode)
warnDeprecation(DeprecationTypes.COMPONENT_V_MODEL, { type } as any, comp)
popWarningContext()
warnedTypes.add(comp)
}
// v3 compiled model code -> v2 compat props
// modelValue -> value
// onUpdate:modelValue -> onModelCompat:input
const model = comp.model || {}
applyModelFromMixins(model, comp.mixins)
const { prop = 'value', event = 'input' } = model
if (prop !== 'modelValue') {
props[prop] = props.modelValue
delete props.modelValue
}
// important: update dynamic props
if (dynamicProps) {
dynamicProps[dynamicProps.indexOf('modelValue')] = prop
}
props[compatModelEventPrefix + event] = props['onUpdate:modelValue']
delete props['onUpdate:modelValue']
}
}
function applyModelFromMixins(model: any, mixins?: ComponentOptions[]) {
Iif (mixins) {
mixins.forEach(m => {
Iif (m.model) extend(model, m.model)
Iif (m.mixins) applyModelFromMixins(model, m.mixins)
})
}
}
export function compatModelEmit(
instance: ComponentInternalInstance,
event: string,
args: any[]
) {
if (!isCompatEnabled(DeprecationTypes.COMPONENT_V_MODEL, instance)) {
return
}
const props = instance.vnode.props
const modelHandler = props && props[compatModelEventPrefix + event]
if (modelHandler) {
callWithErrorHandling(
modelHandler,
instance,
ErrorCodes.COMPONENT_EVENT_HANDLER,
args
)
}
}
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