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编辑当前文件:/home/qrafawbu/www/vendor/livewire/livewire/js/component/LoadingStates.js

import store from '@/Store'
import { wireDirectives } from '@/util'

export default function () {
    store.registerHook('component.initialized', component => {
        component.targetedLoadingElsByAction = {}
        component.genericLoadingEls = []
        component.currentlyActiveLoadingEls = []
        component.currentlyActiveUploadLoadingEls = []
    })

store.registerHook('element.initialized', (el, component) => {
        let directives = wireDirectives(el)

if (directives.missing('loading')) return

const loadingDirectives = directives.directives.filter(
            i => i.type === 'loading'
        )

loadingDirectives.forEach(directive => {
            processLoadingDirective(component, el, directive)
        })
    })

store.registerHook('message.sent', (message, component) => {
        const actions = message.updateQueue
            .filter(action => {
                return action.type === 'callMethod'
            })
            .map(action => action.payload.method)

const actionsWithParams = message.updateQueue
            .filter(action => {
                return action.type === 'callMethod'
            })
            .map(action =>
                generateSignatureFromMethodAndParams(
                    action.payload.method,
                    action.payload.params
                )
            )

const models = message.updateQueue
            .filter(action => {
                return action.type === 'syncInput'
            })
            .map(action => action.payload.name)

setLoading(component, actions.concat(actionsWithParams).concat(models))
    })

store.registerHook('message.failed', (message, component) => {
        unsetLoading(component)
    })

store.registerHook('message.received', (message, component) => {
        unsetLoading(component)
    })

store.registerHook('element.removed', (el, component) => {
        removeLoadingEl(component, el)
    })
}

function processLoadingDirective(component, el, directive) {
    // If this element is going to be dealing with loading states.
    // We will initialize an "undo" stack upfront, so we don't
    // have to deal with isset() type conditionals later.
    el.__livewire_on_finish_loading = []

var actionNames = false

let directives = wireDirectives(el)

if (directives.get('target')) {
        let target = directives.get('target')
        if (target.params.length > 0) {
            actionNames = [
                generateSignatureFromMethodAndParams(
                    target.method,
                    target.params
                ),
            ]
        } else {
            // wire:target overrides any automatic loading scoping we do.
            actionNames = target.value.split(',').map(s => s.trim())
        }
    } else {
        // If there is no wire:target, let's check for the existance of a wire:click="foo" or something,
        // and automatically scope this loading directive to that action.
        const nonActionOrModelLivewireDirectives = [
            'init',
            'dirty',
            'offline',
            'target',
            'loading',
            'poll',
            'ignore',
            'key',
            'id',
        ]

actionNames = directives
            .all()
            .filter(i => !nonActionOrModelLivewireDirectives.includes(i.type))
            .map(i => i.method)

// If we found nothing, just set the loading directive to the global component. (run on every request)
        if (actionNames.length < 1) actionNames = false
    }

addLoadingEl(component, el, directive, actionNames)
}

function addLoadingEl(component, el, directive, actionsNames) {
    if (actionsNames) {
        actionsNames.forEach(actionsName => {
            if (component.targetedLoadingElsByAction[actionsName]) {
                component.targetedLoadingElsByAction[actionsName].push({
                    el,
                    directive,
                })
            } else {
                component.targetedLoadingElsByAction[actionsName] = [
                    { el, directive },
                ]
            }
        })
    } else {
        component.genericLoadingEls.push({ el, directive })
    }
}

function removeLoadingEl(component, el) {
    // Look through the global/generic elements for the element to remove.
    component.genericLoadingEls.forEach((element, index) => {
        if (element.el.isSameNode(el)) {
            component.genericLoadingEls.splice(index, 1)
        }
    })

// Look through the targeted elements to remove.
    Object.keys(component.targetedLoadingElsByAction).forEach(key => {
        component.targetedLoadingElsByAction[
            key
        ] = component.targetedLoadingElsByAction[key].filter(element => {
            return ! element.el.isSameNode(el)
        })
    })
}

function setLoading(component, actions) {
    const actionTargetedEls = actions
        .map(action => component.targetedLoadingElsByAction[action])
        .filter(el => el)
        .flat()

const allEls = component.genericLoadingEls.concat(actionTargetedEls)

startLoading(allEls)

component.currentlyActiveLoadingEls = allEls
}

export function setUploadLoading(component, modelName) {
    const actionTargetedEls =
        component.targetedLoadingElsByAction[modelName] || []

const allEls = component.genericLoadingEls.concat(actionTargetedEls)

startLoading(allEls)

component.currentlyActiveUploadLoadingEls = allEls
}

export function unsetUploadLoading(component) {
    endLoading(component.currentlyActiveUploadLoadingEls)

component.currentlyActiveUploadLoadingEls = []
}

function unsetLoading(component) {
    endLoading(component.currentlyActiveLoadingEls)

component.currentlyActiveLoadingEls = []
}

function startLoading(els) {
    els.forEach(({ el, directive }) => {
        if (directive.modifiers.includes('class')) {
            let classes = directive.value.split(' ').filter(Boolean)

doAndSetCallbackOnElToUndo(
                el,
                directive,
                () => el.classList.add(...classes),
                () => el.classList.remove(...classes)
            )
        } else if (directive.modifiers.includes('attr')) {
            doAndSetCallbackOnElToUndo(
                el,
                directive,
                () => el.setAttribute(directive.value, true),
                () => el.removeAttribute(directive.value)
            )
        } else {
            let cache = window
                .getComputedStyle(el, null)
                .getPropertyValue('display')

doAndSetCallbackOnElToUndo(
                el,
                directive,
                () => {
                    el.style.display = directive.modifiers.includes('remove')
                        ? cache
                        : getDisplayProperty(directive)
                },
                () => {
                    el.style.display = 'none'
                }
            )
        }
    })
}

function getDisplayProperty(directive) {
    return (['inline', 'block', 'table', 'flex', 'grid']
        .filter(i => directive.modifiers.includes(i))[0] || 'inline-block')
}

function doAndSetCallbackOnElToUndo(el, directive, doCallback, undoCallback) {
    if (directive.modifiers.includes('remove'))
        [doCallback, undoCallback] = [undoCallback, doCallback]

if (directive.modifiers.includes('delay')) {
        let timeout = setTimeout(() => {
            doCallback()
            el.__livewire_on_finish_loading.push(() => undoCallback())
        }, 200)

el.__livewire_on_finish_loading.push(() => clearTimeout(timeout))
    } else {
        doCallback()
        el.__livewire_on_finish_loading.push(() => undoCallback())
    }
}

function endLoading(els) {
    els.forEach(({ el }) => {
        while (el.__livewire_on_finish_loading.length > 0) {
            el.__livewire_on_finish_loading.shift()()
        }
    })
}

function generateSignatureFromMethodAndParams(method, params) {
    return method + btoa(encodeURIComponent(params.toString()))
}