79 lines
1.9 KiB
JavaScript
79 lines
1.9 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 navigateBackFromOaHost(opts) {
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const onStuck = opts && opts.onStuck
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const currentRoute = () => {
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try {
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const pages = getCurrentPages()
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const cur = pages && pages[pages.length - 1]
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return String((cur && (cur.route || (cur.$page && cur.$page.fullPath))) || '')
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} catch (_) {
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return ''
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}
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}
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const stillOnWebview = () => {
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const route = currentRoute()
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return (
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route.indexOf('oa/start/webview') !== -1 ||
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route.indexOf('oa/webview/') !== -1
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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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const fallback = () => {
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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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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 (stillOnWebview()) 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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