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react-code-dataset / slate /packages /slate-dom /src /utils /environment.ts
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export const IS_IOS =
typeof navigator !== 'undefined' &&
typeof window !== 'undefined' &&
/iPad|iPhone|iPod/.test(navigator.userAgent) &&
!window.MSStream
export const IS_APPLE =
typeof navigator !== 'undefined' && /Mac OS X/.test(navigator.userAgent)
export const IS_ANDROID =
typeof navigator !== 'undefined' && /Android/.test(navigator.userAgent)
export const IS_FIREFOX =
typeof navigator !== 'undefined' &&
/^(?!.*Seamonkey)(?=.*Firefox).*/i.test(navigator.userAgent)
export const IS_WEBKIT =
typeof navigator !== 'undefined' &&
/AppleWebKit(?!.*Chrome)/i.test(navigator.userAgent)
// "modern" Edge was released at 79.x
export const IS_EDGE_LEGACY =
typeof navigator !== 'undefined' &&
/Edge?\/(?:[0-6][0-9]|[0-7][0-8])(?:\.)/i.test(navigator.userAgent)
export const IS_CHROME =
typeof navigator !== 'undefined' && /Chrome/i.test(navigator.userAgent)
// Native `beforeInput` events don't work well with react on Chrome 75
// and older, Chrome 76+ can use `beforeInput` though.
export const IS_CHROME_LEGACY =
typeof navigator !== 'undefined' &&
/Chrome?\/(?:[0-7][0-5]|[0-6][0-9])(?:\.)/i.test(navigator.userAgent)
export const IS_ANDROID_CHROME_LEGACY =
IS_ANDROID &&
typeof navigator !== 'undefined' &&
/Chrome?\/(?:[0-5]?\d)(?:\.)/i.test(navigator.userAgent)
// Firefox did not support `beforeInput` until `v87`.
export const IS_FIREFOX_LEGACY =
typeof navigator !== 'undefined' &&
/^(?!.*Seamonkey)(?=.*Firefox\/(?:[0-7][0-9]|[0-8][0-6])(?:\.)).*/i.test(
navigator.userAgent
)
// UC mobile browser
export const IS_UC_MOBILE =
typeof navigator !== 'undefined' && /.*UCBrowser/.test(navigator.userAgent)
// Wechat browser (not including mac wechat)
export const IS_WECHATBROWSER =
typeof navigator !== 'undefined' &&
/.*Wechat/.test(navigator.userAgent) &&
!/.*MacWechat/.test(navigator.userAgent) && // avoid lookbehind (buggy in safari < 16.4)
(!IS_CHROME || IS_CHROME_LEGACY) // wechat and low chrome is real wechat
// Check if DOM is available as React does internally.
// https://github.com/facebook/react/blob/master/packages/shared/ExecutionEnvironment.js
export const CAN_USE_DOM = !!(
typeof window !== 'undefined' &&
typeof window.document !== 'undefined' &&
typeof window.document.createElement !== 'undefined'
)
// Check if the browser is Safari and older than 17
export const IS_SAFARI_LEGACY =
typeof navigator !== 'undefined' &&
/Safari/.test(navigator.userAgent) &&
/Version\/(\d+)/.test(navigator.userAgent) &&
(navigator.userAgent.match(/Version\/(\d+)/)?.[1]
? parseInt(navigator.userAgent.match(/Version\/(\d+)/)?.[1]!, 10) < 17
: false)
// COMPAT: Firefox/Edge Legacy don't support the `beforeinput` event
// Chrome Legacy doesn't support `beforeinput` correctly
export const HAS_BEFORE_INPUT_SUPPORT =
(!IS_CHROME_LEGACY || !IS_ANDROID_CHROME_LEGACY) &&
!IS_EDGE_LEGACY &&
// globalThis is undefined in older browsers
typeof globalThis !== 'undefined' &&
globalThis.InputEvent &&
// @ts-ignore The `getTargetRanges` property isn't recognized.
typeof globalThis.InputEvent.prototype.getTargetRanges === 'function'