58 lines
2.4 KiB
JavaScript
58 lines
2.4 KiB
JavaScript
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// For perf reasons, this script is run inline to quickly set certain styles.
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// To allow CSP to work correctly, we also calculate a sha256 hash during
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// the build process and write it to checksum.js.
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import { testHasLocalStorageOnce } from '../routes/_utils/testStorage'
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import { switchToTheme } from '../routes/_utils/themeEngine'
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import { basename } from '../routes/_api/utils'
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import { onUserIsLoggedOut } from '../routes/_actions/onUserIsLoggedOut'
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window.__themeColors = process.env.THEME_COLORS
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const safeParse = str => (typeof str === 'undefined' || str === 'undefined') ? undefined : JSON.parse(str)
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const hasLocalStorage = testHasLocalStorageOnce()
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const currentInstance = hasLocalStorage && safeParse(localStorage.store_currentInstance)
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if (currentInstance) {
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// Do prefetch if we're logged in, so we can connect faster to the other origin.
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// Note that /api/v1/instance is basically the only URL that doesn't require credentials,
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// which is why we can do this. Also we do end up calling this on loading the home page,
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// so it's not a wasted request.
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let link = document.createElement('link')
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link.setAttribute('rel', 'prefetch')
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link.setAttribute('href', `${basename(currentInstance)}/api/v1/instance`)
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link.setAttribute('crossorigin', 'anonymous')
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document.head.appendChild(link)
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}
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if (currentInstance && localStorage.store_instanceThemes) {
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// switch theme ASAP to minimize flash of default theme
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let theme = safeParse(localStorage.store_instanceThemes)[safeParse(localStorage.store_currentInstance)]
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if (theme && theme !== 'default') {
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switchToTheme(theme)
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}
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}
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if (!hasLocalStorage || !currentInstance) {
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// if not logged in, show all these 'hidden-from-ssr' elements
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onUserIsLoggedOut()
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}
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if (hasLocalStorage && localStorage.store_disableCustomScrollbars === 'true') {
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// if user has disabled custom scrollbars, remove this style
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let theScrollbarStyle = document.getElementById('theScrollbarStyle')
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theScrollbarStyle.setAttribute('media', 'only x') // disables the style
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}
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// hack to make the scrollbars rounded only on macOS
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if (/mac/i.test(navigator.platform)) {
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document.documentElement.style.setProperty('--scrollbar-border-radius', '50px')
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}
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// TODO: remove this hack when Safari works with cross-origin window.open()
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// in a PWA: https://github.com/nolanlawson/pinafore/issues/45
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if (/iP(?:hone|ad|od)/.test(navigator.userAgent)) {
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document.head.removeChild(document.getElementById('theManifest'))
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}
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