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| 1 | +/* eslint-disable promise/prefer-await-to-then */ |
| 2 | + |
| 3 | +const methodMap = [ |
| 4 | + [ |
| 5 | + 'requestFullscreen', |
| 6 | + 'exitFullscreen', |
| 7 | + 'fullscreenElement', |
| 8 | + 'fullscreenEnabled', |
| 9 | + 'fullscreenchange', |
| 10 | + 'fullscreenerror', |
| 11 | + ], |
| 12 | + // New WebKit |
| 13 | + [ |
| 14 | + 'webkitRequestFullscreen', |
| 15 | + 'webkitExitFullscreen', |
| 16 | + 'webkitFullscreenElement', |
| 17 | + 'webkitFullscreenEnabled', |
| 18 | + 'webkitfullscreenchange', |
| 19 | + 'webkitfullscreenerror', |
| 20 | + |
| 21 | + ], |
| 22 | + // Old WebKit |
| 23 | + [ |
| 24 | + 'webkitRequestFullScreen', |
| 25 | + 'webkitCancelFullScreen', |
| 26 | + 'webkitCurrentFullScreenElement', |
| 27 | + 'webkitCancelFullScreen', |
| 28 | + 'webkitfullscreenchange', |
| 29 | + 'webkitfullscreenerror', |
| 30 | + |
| 31 | + ], |
| 32 | + [ |
| 33 | + 'mozRequestFullScreen', |
| 34 | + 'mozCancelFullScreen', |
| 35 | + 'mozFullScreenElement', |
| 36 | + 'mozFullScreenEnabled', |
| 37 | + 'mozfullscreenchange', |
| 38 | + 'mozfullscreenerror', |
| 39 | + ], |
| 40 | + [ |
| 41 | + 'msRequestFullscreen', |
| 42 | + 'msExitFullscreen', |
| 43 | + 'msFullscreenElement', |
| 44 | + 'msFullscreenEnabled', |
| 45 | + 'MSFullscreenChange', |
| 46 | + 'MSFullscreenError', |
| 47 | + ], |
| 48 | +]; |
| 49 | + |
| 50 | +const nativeAPI = (() => { |
| 51 | + if (typeof document === 'undefined') { |
| 52 | + return false; |
| 53 | + } |
| 54 | + |
| 55 | + const unprefixedMethods = methodMap[0]; |
| 56 | + const returnValue = {}; |
| 57 | + |
| 58 | + for (const methodList of methodMap) { |
| 59 | + const exitFullscreenMethod = methodList?.[1]; |
| 60 | + if (exitFullscreenMethod in document) { |
| 61 | + for (const [index, method] of methodList.entries()) { |
| 62 | + returnValue[unprefixedMethods[index]] = method; |
| 63 | + } |
| 64 | + |
| 65 | + return returnValue; |
| 66 | + } |
| 67 | + } |
| 68 | + |
| 69 | + return false; |
| 70 | +})(); |
| 71 | + |
| 72 | +const eventNameMap = { |
| 73 | + change: nativeAPI.fullscreenchange, |
| 74 | + error: nativeAPI.fullscreenerror, |
| 75 | +}; |
| 76 | + |
| 77 | +// eslint-disable-next-line import/no-mutable-exports |
| 78 | +let screenfull = { |
| 79 | + // eslint-disable-next-line default-param-last |
| 80 | + request(element = document.documentElement, options) { |
| 81 | + return new Promise((resolve, reject) => { |
| 82 | + const onFullScreenEntered = () => { |
| 83 | + screenfull.off('change', onFullScreenEntered); |
| 84 | + resolve(); |
| 85 | + }; |
| 86 | + |
| 87 | + screenfull.on('change', onFullScreenEntered); |
| 88 | + |
| 89 | + const returnPromise = element[nativeAPI.requestFullscreen](options); |
| 90 | + |
| 91 | + if (returnPromise instanceof Promise) { |
| 92 | + returnPromise.then(onFullScreenEntered).catch(reject); |
| 93 | + } |
| 94 | + }); |
| 95 | + }, |
| 96 | + exit() { |
| 97 | + return new Promise((resolve, reject) => { |
| 98 | + if (!screenfull.isFullscreen) { |
| 99 | + resolve(); |
| 100 | + return; |
| 101 | + } |
| 102 | + |
| 103 | + const onFullScreenExit = () => { |
| 104 | + screenfull.off('change', onFullScreenExit); |
| 105 | + resolve(); |
| 106 | + }; |
| 107 | + |
| 108 | + screenfull.on('change', onFullScreenExit); |
| 109 | + |
| 110 | + const returnPromise = document[nativeAPI.exitFullscreen](); |
| 111 | + |
| 112 | + if (returnPromise instanceof Promise) { |
| 113 | + returnPromise.then(onFullScreenExit).catch(reject); |
| 114 | + } |
| 115 | + }); |
| 116 | + }, |
| 117 | + toggle(element, options) { |
| 118 | + return screenfull.isFullscreen ? screenfull.exit() : screenfull.request(element, options); |
| 119 | + }, |
| 120 | + onchange(callback) { |
| 121 | + screenfull.on('change', callback); |
| 122 | + }, |
| 123 | + onerror(callback) { |
| 124 | + screenfull.on('error', callback); |
| 125 | + }, |
| 126 | + on(event, callback) { |
| 127 | + const eventName = eventNameMap[event]; |
| 128 | + if (eventName) { |
| 129 | + document.addEventListener(eventName, callback, false); |
| 130 | + } |
| 131 | + }, |
| 132 | + off(event, callback) { |
| 133 | + const eventName = eventNameMap[event]; |
| 134 | + if (eventName) { |
| 135 | + document.removeEventListener(eventName, callback, false); |
| 136 | + } |
| 137 | + }, |
| 138 | + raw: nativeAPI, |
| 139 | +}; |
| 140 | + |
| 141 | +Object.defineProperties(screenfull, { |
| 142 | + isFullscreen: { |
| 143 | + get: () => Boolean(document[nativeAPI.fullscreenElement]), |
| 144 | + }, |
| 145 | + element: { |
| 146 | + enumerable: true, |
| 147 | + get: () => document[nativeAPI.fullscreenElement] ?? undefined, |
| 148 | + }, |
| 149 | + isEnabled: { |
| 150 | + enumerable: true, |
| 151 | + // Coerce to boolean in case of old WebKit. |
| 152 | + get: () => Boolean(document[nativeAPI.fullscreenEnabled]), |
| 153 | + }, |
| 154 | +}); |
| 155 | + |
| 156 | +if (!nativeAPI) { |
| 157 | + screenfull = {isEnabled: false}; |
| 158 | +} |
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