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| 1 | +export const _registerEvent = (target, eventType, callback) => { |
| 2 | + if (target.addEventListener) { |
| 3 | + target.addEventListener(eventType, callback) |
| 4 | + return { |
| 5 | + remove: () => { |
| 6 | + target.removeEventListener(eventType, callback) |
| 7 | + } |
| 8 | + } |
| 9 | + } else { |
| 10 | + target.attachEvent(eventType, callback) |
| 11 | + return { |
| 12 | + remove: () => { |
| 13 | + target.detachEvent(eventType, callback) |
| 14 | + } |
| 15 | + } |
| 16 | + } |
| 17 | +} |
| 18 | + |
| 19 | +const _createHiddenIFrame = (target, url: string) => { |
| 20 | + const iframe = document.createElement('iframe') |
| 21 | + iframe.src = url |
| 22 | + iframe.id = 'hiddenIFrameVeryHiddenHaha' |
| 23 | + iframe.style.display = 'none' |
| 24 | + |
| 25 | + target.appendChild(iframe) |
| 26 | + return iframe |
| 27 | +} |
| 28 | + |
| 29 | +const openUriWithHiddenFrame = (uri, failCb, successCb) => { |
| 30 | + const timeout = setTimeout(function () { |
| 31 | + failCb() |
| 32 | + handler.remove() |
| 33 | + }, 500) |
| 34 | + |
| 35 | + let iframe: HTMLIFrameElement = document.querySelector('#hiddenIFrameVeryHiddenHaha') |
| 36 | + if (!iframe) { |
| 37 | + iframe = _createHiddenIFrame(document.body, 'about:blank') |
| 38 | + } |
| 39 | + |
| 40 | + const handler = _registerEvent(window, 'blur', onBlur) |
| 41 | + function onBlur() { |
| 42 | + clearTimeout(timeout) |
| 43 | + handler.remove() |
| 44 | + successCb() |
| 45 | + } |
| 46 | + |
| 47 | + iframe.contentWindow.location.href = uri |
| 48 | +} |
| 49 | + |
| 50 | +const openUriWithTimeoutHack = (uri, failCb, successCb) => { |
| 51 | + const timeout = setTimeout(function () { |
| 52 | + failCb() |
| 53 | + handler.remove() |
| 54 | + }, 500) |
| 55 | + |
| 56 | + //handle page running in an iframe (blur must be registered with top level window) |
| 57 | + let target: any = window |
| 58 | + while (target !== target.parent) { |
| 59 | + target = target.parent |
| 60 | + } |
| 61 | + |
| 62 | + const handler = _registerEvent(target, 'blur', onBlur) |
| 63 | + |
| 64 | + function onBlur() { |
| 65 | + clearTimeout(timeout) |
| 66 | + handler.remove() |
| 67 | + successCb() |
| 68 | + } |
| 69 | + |
| 70 | + window.location = uri |
| 71 | +} |
| 72 | + |
| 73 | +const openUriUsingFirefox = (uri, failCb, successCb) => { |
| 74 | + let iframe: HTMLIFrameElement = document.querySelector('#hiddenIFrameVeryHiddenHaha') |
| 75 | + |
| 76 | + if (!iframe) { |
| 77 | + iframe = _createHiddenIFrame(document.body, 'about:blank') |
| 78 | + } |
| 79 | + |
| 80 | + try { |
| 81 | + iframe.contentWindow.location.href = uri |
| 82 | + successCb() |
| 83 | + } catch (e) { |
| 84 | + if (e.name === 'NS_ERROR_UNKNOWN_PROTOCOL') { |
| 85 | + failCb() |
| 86 | + } |
| 87 | + } |
| 88 | +} |
| 89 | + |
| 90 | +const checkBrowser = () => { |
| 91 | + // eslint-disable-next-line |
| 92 | + // @ts-ignore |
| 93 | + const isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0 |
| 94 | + const ua = navigator.userAgent.toLowerCase() |
| 95 | + |
| 96 | + return { |
| 97 | + isOpera: isOpera, |
| 98 | + // eslint-disable-next-line |
| 99 | + // @ts-ignore |
| 100 | + isFirefox: typeof InstallTrigger !== 'undefined', |
| 101 | + isSafari: |
| 102 | + (~ua.indexOf('safari') && !~ua.indexOf('chrome')) || |
| 103 | + Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0, |
| 104 | + // eslint-disable-next-line |
| 105 | + // @ts-ignore |
| 106 | + isIOS: /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream, |
| 107 | + // eslint-disable-next-line |
| 108 | + // @ts-ignore |
| 109 | + |
| 110 | + isChrome: !!window.chrome && !isOpera |
| 111 | + } |
| 112 | +} |
| 113 | + |
| 114 | +export const checkCustomProtocolHandler = (url, fallbackCallback, successCallback) => { |
| 115 | + const browser = checkBrowser() |
| 116 | + if (browser.isFirefox) { |
| 117 | + openUriUsingFirefox(url, fallbackCallback, successCallback) |
| 118 | + } else if (browser.isChrome || browser.isIOS) { |
| 119 | + openUriWithTimeoutHack(url, fallbackCallback, successCallback) |
| 120 | + } else if (browser.isSafari) { |
| 121 | + openUriWithHiddenFrame(url, fallbackCallback, successCallback) |
| 122 | + } |
| 123 | +} |
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