first commit

services/web/frontend/js/main/account-upgrade.ts

@@ -0,0 +1,29 @@
+import * as eventTracking from '../infrastructure/event-tracking'
+
+export function startFreeTrial(source: string, variant?: string) {
+  const eventSegmentation: Record<string, string> = { 'paywall-type': source }
+  if (variant) {
+    eventSegmentation.variant = variant
+  }
+
+  eventTracking.send('subscription-funnel', 'upgraded-free-trial', source)
+  eventTracking.sendMB('paywall-click', eventSegmentation)
+
+  const searchParams = new URLSearchParams({
+    itm_campaign: source,
+  })
+
+  window.open(`/user/subscription/choose-your-plan?${searchParams.toString()}`)
+}
+
+export function upgradePlan(source: string) {
+  const openedWindow = window.open()
+
+  if (typeof window.ga === 'function') {
+    window.ga('send', 'event', 'subscription-funnel', 'upgraded-plan', source)
+  }
+
+  if (openedWindow) {
+    openedWindow.location = '/user/subscription'
+  }
+}

services/web/frontend/js/main/is-valid-tex-file.ts

@@ -0,0 +1,10 @@
+import getMeta from '@/utils/meta'
+
+export const isValidTeXFile = (filename: string) => {
+  const validTeXFileRegExp = new RegExp(
+    `\\.(${getMeta('ol-ExposedSettings').validRootDocExtensions.join('|')})$`,
+    'i'
+  )
+
+  return validTeXFileRegExp.test(filename)
+}