{
  "version": 3,
  "sources": ["../../../src/lib/globals/environment.ts"],
  "sourcesContent": ["import { atom } from '@tldraw/state'\n\n/**\n * An object that contains information about the current device and environment.\n * This object is not reactive and will not update automatically when the environment changes,\n * so only include values that are fixed, such as the user's browser and operating system.\n *\n * @public\n */\nconst tlenv = {\n\tisSafari: false,\n\tisIos: false,\n\tisChromeForIos: false,\n\tisFirefox: false,\n\tisAndroid: false,\n\tisWebview: false,\n\tisDarwin: false,\n\thasCanvasSupport: false,\n}\n\nlet isForcedFinePointer = false\n\nif (typeof window !== 'undefined') {\n\tif ('navigator' in window) {\n\t\ttlenv.isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent)\n\t\ttlenv.isIos = !!navigator.userAgent.match(/iPad/i) || !!navigator.userAgent.match(/iPhone/i)\n\t\ttlenv.isChromeForIos = /crios.*safari/i.test(navigator.userAgent)\n\t\ttlenv.isFirefox = /firefox/i.test(navigator.userAgent)\n\t\ttlenv.isAndroid = /android/i.test(navigator.userAgent)\n\t\ttlenv.isDarwin = window.navigator.userAgent.toLowerCase().indexOf('mac') > -1\n\t}\n\ttlenv.hasCanvasSupport = 'Promise' in window && 'HTMLCanvasElement' in window\n\tisForcedFinePointer = tlenv.isFirefox && !tlenv.isAndroid && !tlenv.isIos\n}\n\n/**\n * An atom that contains information about the current device and environment.\n * This object is reactive and will update automatically when the environment changes.\n * Use it for values that may change over time, such as the pointer type.\n *\n * @public\n */\nconst tlenvReactive = atom('tlenvReactive', {\n\t// Whether the user's device has a coarse pointer. This is dynamic on many systems, especially\n\t// on touch-screen laptops, which will become \"coarse\" if the user touches the screen.\n\t// See https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules/@media/pointer#coarse\n\tisCoarsePointer: false,\n})\n\nif (typeof window !== 'undefined' && !isForcedFinePointer) {\n\tconst mql = window.matchMedia && window.matchMedia('(any-pointer: coarse)')\n\n\tconst isCurrentCoarsePointer = () => tlenvReactive.__unsafe__getWithoutCapture().isCoarsePointer\n\n\tif (mql) {\n\t\t// 1. Update the coarse pointer automatically when the media query changes\n\t\tconst updateIsCoarsePointer = () => {\n\t\t\tconst isCoarsePointer = mql.matches\n\t\t\tif (isCoarsePointer !== isCurrentCoarsePointer()) {\n\t\t\t\ttlenvReactive.update((prev) => ({ ...prev, isCoarsePointer: isCoarsePointer }))\n\t\t\t}\n\t\t}\n\t\tupdateIsCoarsePointer()\n\t\tmql.addEventListener('change', updateIsCoarsePointer)\n\t}\n\n\t// 2. Also update the coarse pointer state when a pointer down event occurs. We need `capture: true`\n\t// here because the tldraw component itself stops propagation on pointer events it receives.\n\twindow.addEventListener(\n\t\t'pointerdown',\n\t\t(e: PointerEvent) => {\n\t\t\t// when the user interacts with a mouse, we assume they have a fine pointer.\n\t\t\t// otherwise, we assume they have a coarse pointer.\n\t\t\tconst isCoarseEvent = e.pointerType !== 'mouse'\n\t\t\tif (isCoarseEvent !== isCurrentCoarsePointer()) {\n\t\t\t\ttlenvReactive.update((prev) => ({ ...prev, isCoarsePointer: isCoarseEvent }))\n\t\t\t}\n\t\t},\n\t\t{ capture: true }\n\t)\n}\n\nexport { tlenv, tlenvReactive }\n"],
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