101 lines
2.4 KiB
JavaScript
101 lines
2.4 KiB
JavaScript
/**
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* H5 上 uni.navigateBack 偶发既不成功也不进 fail；离开 OA web-view 时做兜底。
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* @param {{ fallbackUrl?: string, onStuck?: () => void }} [opts]
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*/
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export function isOaHostWebviewRoute(route) {
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const value = String(route || '')
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return (
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value.indexOf('oa/start/webview') !== -1 ||
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value.indexOf('oa/webview/') !== -1 ||
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value.indexOf('market/webview/') !== -1
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)
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}
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export function navigateBackFromOaHost(opts) {
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const onStuck = opts && opts.onStuck
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const pageRoute = (page) => {
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return String(
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(page && (page.route || (page.$page && page.$page.fullPath))) || ''
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)
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}
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const samePageStillOnTop = (start) => {
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try {
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const pages = getCurrentPages()
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const current = pages && pages[pages.length - 1]
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return (
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!!current &&
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pages.length === start.depth &&
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current === start.page &&
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pageRoute(current) === start.route &&
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isOaHostWebviewRoute(start.route)
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)
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} catch (_) {
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return false
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}
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}
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const resolveFallbackUrl = () => {
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const explicit = String((opts && opts.fallbackUrl) || '').trim()
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if (explicit) return explicit
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try {
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const pages = getCurrentPages()
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if (pages && pages.length >= 2) {
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const prev = pages[pages.length - 2]
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const route = prev && prev.route
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if (route) return '/' + String(route).replace(/^\//, '')
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}
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} catch (_) {
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/* ignore */
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}
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return '/pages/oa/start/index'
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}
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let fallbackStarted = false
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const fallback = () => {
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if (fallbackStarted) return
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fallbackStarted = true
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const fallbackUrl = resolveFallbackUrl()
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if (!fallbackUrl) {
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if (onStuck) onStuck()
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return
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}
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uni.redirectTo({
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url: fallbackUrl,
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fail: () => {
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uni.reLaunch({
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url: fallbackUrl,
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fail: () => {
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if (onStuck) onStuck()
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}
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})
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}
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})
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}
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try {
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const pages = getCurrentPages()
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if (pages && pages.length > 1) {
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const startPage = pages[pages.length - 1]
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const start = {
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page: startPage,
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route: pageRoute(startPage),
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depth: pages.length
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}
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uni.navigateBack({
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delta: 1,
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fail: () => fallback()
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})
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// H5：navigateBack 偶发静默失败
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setTimeout(() => {
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if (samePageStillOnTop(start)) fallback()
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}, 280)
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return
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}
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} catch (_) {
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/* fall through */
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}
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fallback()
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}
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