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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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | 84x 84x 84x 84x 84x 84x 84x 84x 11x 2x 84x 175x 175x 175x 175x 175x 176x 176x 2x 176x 5x 176x 175x 84x 371x 371x 371x 377x 377x 242x 377x 377x 76x 377x 304x 304x 304x | /**
Runtime helper for applying directives to a vnode. Example usage:
const comp = resolveComponent('comp')
const foo = resolveDirective('foo')
const bar = resolveDirective('bar')
return withDirectives(h(comp), [
[foo, this.x],
[bar, this.y]
])
*/
import { VNode } from './vnode'
import { isFunction, EMPTY_OBJ, isBuiltInDirective } from '@vue/shared'
import { warn } from './warning'
import { ComponentInternalInstance, Data } from './component'
import { currentRenderingInstance } from './componentRenderContext'
import { callWithAsyncErrorHandling, ErrorCodes } from './errorHandling'
import { ComponentPublicInstance } from './componentPublicInstance'
import { mapCompatDirectiveHook } from './compat/customDirective'
import { pauseTracking, resetTracking } from '@vue/reactivity'
import { traverse } from './apiWatch'
export interface DirectiveBinding<V = any> {
instance: ComponentPublicInstance | null
value: V
oldValue: V | null
arg?: string
modifiers: DirectiveModifiers
dir: ObjectDirective<any, V>
}
export type DirectiveHook<T = any, Prev = VNode<any, T> | null, V = any> = (
el: T,
binding: DirectiveBinding<V>,
vnode: VNode<any, T>,
prevVNode: Prev
) => void
export type SSRDirectiveHook = (
binding: DirectiveBinding,
vnode: VNode
) => Data | undefined
export interface ObjectDirective<T = any, V = any> {
created?: DirectiveHook<T, null, V>
beforeMount?: DirectiveHook<T, null, V>
mounted?: DirectiveHook<T, null, V>
beforeUpdate?: DirectiveHook<T, VNode<any, T>, V>
updated?: DirectiveHook<T, VNode<any, T>, V>
beforeUnmount?: DirectiveHook<T, null, V>
unmounted?: DirectiveHook<T, null, V>
getSSRProps?: SSRDirectiveHook
deep?: boolean
}
export type FunctionDirective<T = any, V = any> = DirectiveHook<T, any, V>
export type Directive<T = any, V = any> =
| ObjectDirective<T, V>
| FunctionDirective<T, V>
export type DirectiveModifiers = Record<string, boolean>
export function validateDirectiveName(name: string) {
if (isBuiltInDirective(name)) {
warn('Do not use built-in directive ids as custom directive id: ' + name)
}
}
// Directive, value, argument, modifiers
export type DirectiveArguments = Array<
| [Directive]
| [Directive, any]
| [Directive, any, string]
| [Directive, any, string, DirectiveModifiers]
>
/**
* Adds directives to a VNode.
*/
export function withDirectives<T extends VNode>(
vnode: T,
directives: DirectiveArguments
): T {
const internalInstance = currentRenderingInstance
Iif (internalInstance === null) {
__DEV__ && warn(`withDirectives can only be used inside render functions.`)
return vnode
}
const instance = internalInstance.proxy
const bindings: DirectiveBinding[] = vnode.dirs || (vnode.dirs = [])
for (let i = 0; i < directives.length; i++) {
let [dir, value, arg, modifiers = EMPTY_OBJ] = directives[i]
if (isFunction(dir)) {
dir = {
mounted: dir,
updated: dir
} as ObjectDirective
}
if (dir.deep) {
traverse(value)
}
bindings.push({
dir,
instance,
value,
oldValue: void 0,
arg,
modifiers
})
}
return vnode
}
export function invokeDirectiveHook(
vnode: VNode,
prevVNode: VNode | null,
instance: ComponentInternalInstance | null,
name: keyof ObjectDirective
) {
const bindings = vnode.dirs!
const oldBindings = prevVNode && prevVNode.dirs!
for (let i = 0; i < bindings.length; i++) {
const binding = bindings[i]
if (oldBindings) {
binding.oldValue = oldBindings[i].value
}
let hook = binding.dir[name] as DirectiveHook | DirectiveHook[] | undefined
if (__COMPAT__ && !hook) {
hook = mapCompatDirectiveHook(name, binding.dir, instance)
}
if (hook) {
// disable tracking inside all lifecycle hooks
// since they can potentially be called inside effects.
pauseTracking()
callWithAsyncErrorHandling(hook, instance, ErrorCodes.DIRECTIVE_HOOK, [
vnode.el,
binding,
vnode,
prevVNode
])
resetTracking()
}
}
}
|