/* @flow */
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import type Router from '../index'
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import { History } from './base'
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import { NavigationFailureType, isNavigationFailure } from '../util/errors'
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export class AbstractHistory extends History {
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index: number
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stack: Array<Route>
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constructor (router: Router, base: ?string) {
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super(router, base)
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this.stack = []
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this.index = -1
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}
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push (location: RawLocation, onComplete?: Function, onAbort?: Function) {
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this.transitionTo(
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location,
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route => {
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this.stack = this.stack.slice(0, this.index + 1).concat(route)
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this.index++
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onComplete && onComplete(route)
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},
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onAbort
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)
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}
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replace (location: RawLocation, onComplete?: Function, onAbort?: Function) {
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this.transitionTo(
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location,
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route => {
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this.stack = this.stack.slice(0, this.index).concat(route)
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onComplete && onComplete(route)
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},
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onAbort
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)
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}
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go (n: number) {
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const targetIndex = this.index + n
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if (targetIndex < 0 || targetIndex >= this.stack.length) {
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return
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}
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const route = this.stack[targetIndex]
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this.confirmTransition(
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route,
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() => {
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const prev = this.current
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this.index = targetIndex
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this.updateRoute(route)
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this.router.afterHooks.forEach(hook => {
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hook && hook(route, prev)
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})
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},
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err => {
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if (isNavigationFailure(err, NavigationFailureType.duplicated)) {
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this.index = targetIndex
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}
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}
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)
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}
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getCurrentLocation () {
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const current = this.stack[this.stack.length - 1]
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return current ? current.fullPath : '/'
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}
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ensureURL () {
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// noop
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}
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}
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