waruneeauy
354f528651
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57 lines
1.6 KiB
TypeScript
57 lines
1.6 KiB
TypeScript
const EXTERNAL_BROWSER_QUERY_KEY = 'openExternalBrowser'
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const isLineBrowser = (userAgent: string) => /Line/i.test(userAgent)
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const isAndroid = (userAgent: string) => /Android/i.test(userAgent)
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const isIOS = (userAgent: string) => /iPhone|iPad|iPod/i.test(userAgent)
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const hasExternalRedirectFlag = () => {
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const params = new URLSearchParams(window.location.search)
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return params.get(EXTERNAL_BROWSER_QUERY_KEY) === '1'
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}
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const buildIOSUrlWithFlag = () => {
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const url = new URL(window.location.href)
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url.searchParams.set(EXTERNAL_BROWSER_QUERY_KEY, '1')
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return url.toString()
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}
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const buildUrlWithoutFlag = () => {
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const url = new URL(window.location.href)
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url.searchParams.delete(EXTERNAL_BROWSER_QUERY_KEY)
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return url.toString()
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}
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const buildAndroidIntentUrl = () => {
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const currentUrl = window.location.href
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const strippedUrl = currentUrl.replace(/^https?:\/\//i, '')
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return `intent://${strippedUrl}#Intent;scheme=https;package=com.android.chrome;end`
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}
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export const forceOpenInExternalBrowser = () => {
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const userAgent = navigator.userAgent || ''
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// Prevent redirect loops and only run in LINE browser.
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if (!isLineBrowser(userAgent) || hasExternalRedirectFlag()) {
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return
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}
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if (isAndroid(userAgent)) {
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window.location.replace(buildAndroidIntentUrl())
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return
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}
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if (isIOS(userAgent)) {
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window.location.replace(buildIOSUrlWithFlag())
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}
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}
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export const shouldShowIOSLineFallback = () => {
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const userAgent = navigator.userAgent || ''
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return (
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isLineBrowser(userAgent) && isIOS(userAgent) && hasExternalRedirectFlag()
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)
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}
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export const getExternalBrowserUrl = () => buildUrlWithoutFlag()
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