eewing
8 lines
6.6 KiB
Plaintext
8 lines
6.6 KiB
Plaintext
{
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"version": 3,
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"sources": ["../../svelte/src/reactivity/window/index.js"],
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"sourcesContent": ["import { BROWSER, DEV } from 'esm-env';\nimport { on } from '../../events/index.js';\nimport { ReactiveValue } from '../reactive-value.js';\nimport { get } from '../../internal/client/index.js';\nimport { set, source } from '../../internal/client/reactivity/sources.js';\nimport { tag } from '../../internal/client/dev/tracing.js';\n\n/**\n * `scrollX.current` is a reactive view of `window.scrollX`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const scrollX = new ReactiveValue(\n\tBROWSER ? () => window.scrollX : () => undefined,\n\t(update) => on(window, 'scroll', update)\n);\n\n/**\n * `scrollY.current` is a reactive view of `window.scrollY`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const scrollY = new ReactiveValue(\n\tBROWSER ? () => window.scrollY : () => undefined,\n\t(update) => on(window, 'scroll', update)\n);\n\n/**\n * `innerWidth.current` is a reactive view of `window.innerWidth`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const innerWidth = new ReactiveValue(\n\tBROWSER ? () => window.innerWidth : () => undefined,\n\t(update) => on(window, 'resize', update)\n);\n\n/**\n * `innerHeight.current` is a reactive view of `window.innerHeight`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const innerHeight = new ReactiveValue(\n\tBROWSER ? () => window.innerHeight : () => undefined,\n\t(update) => on(window, 'resize', update)\n);\n\n/**\n * `outerWidth.current` is a reactive view of `window.outerWidth`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const outerWidth = new ReactiveValue(\n\tBROWSER ? () => window.outerWidth : () => undefined,\n\t(update) => on(window, 'resize', update)\n);\n\n/**\n * `outerHeight.current` is a reactive view of `window.outerHeight`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const outerHeight = new ReactiveValue(\n\tBROWSER ? () => window.outerHeight : () => undefined,\n\t(update) => on(window, 'resize', update)\n);\n\n/**\n * `screenLeft.current` is a reactive view of `window.screenLeft`. It is updated inside a `requestAnimationFrame` callback. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const screenLeft = new ReactiveValue(\n\tBROWSER ? () => window.screenLeft : () => undefined,\n\t(update) => {\n\t\tlet value = window.screenLeft;\n\n\t\tlet frame = requestAnimationFrame(function check() {\n\t\t\tframe = requestAnimationFrame(check);\n\n\t\t\tif (value !== (value = window.screenLeft)) {\n\t\t\t\tupdate();\n\t\t\t}\n\t\t});\n\n\t\treturn () => {\n\t\t\tcancelAnimationFrame(frame);\n\t\t};\n\t}\n);\n\n/**\n * `screenTop.current` is a reactive view of `window.screenTop`. It is updated inside a `requestAnimationFrame` callback. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const screenTop = new ReactiveValue(\n\tBROWSER ? () => window.screenTop : () => undefined,\n\t(update) => {\n\t\tlet value = window.screenTop;\n\n\t\tlet frame = requestAnimationFrame(function check() {\n\t\t\tframe = requestAnimationFrame(check);\n\n\t\t\tif (value !== (value = window.screenTop)) {\n\t\t\t\tupdate();\n\t\t\t}\n\t\t});\n\n\t\treturn () => {\n\t\t\tcancelAnimationFrame(frame);\n\t\t};\n\t}\n);\n\n/**\n * `online.current` is a reactive view of `navigator.onLine`. On the server it is `undefined`.\n * @since 5.11.0\n */\nexport const online = new ReactiveValue(\n\tBROWSER ? () => navigator.onLine : () => undefined,\n\t(update) => {\n\t\tconst unsub_online = on(window, 'online', update);\n\t\tconst unsub_offline = on(window, 'offline', update);\n\t\treturn () => {\n\t\t\tunsub_online();\n\t\t\tunsub_offline();\n\t\t};\n\t}\n);\n\n/**\n * `devicePixelRatio.current` is a reactive view of `window.devicePixelRatio`. On the server it is `undefined`.\n * Note that behaviour differs between browsers — on Chrome it will respond to the current zoom level,\n * on Firefox and Safari it won't.\n * @type {{ get current(): number | undefined }}\n * @since 5.11.0\n */\nexport const devicePixelRatio = /* @__PURE__ */ new (class DevicePixelRatio {\n\t#dpr = source(BROWSER ? window.devicePixelRatio : undefined);\n\n\t#update() {\n\t\tconst off = on(\n\t\t\twindow.matchMedia(`(resolution: ${window.devicePixelRatio}dppx)`),\n\t\t\t'change',\n\t\t\t() => {\n\t\t\t\tset(this.#dpr, window.devicePixelRatio);\n\n\t\t\t\toff();\n\t\t\t\tthis.#update();\n\t\t\t}\n\t\t);\n\t}\n\n\tconstructor() {\n\t\tif (BROWSER) {\n\t\t\tthis.#update();\n\t\t}\n\n\t\tif (DEV) {\n\t\t\ttag(this.#dpr, 'window.devicePixelRatio');\n\t\t}\n\t}\n\n\tget current() {\n\t\tget(this.#dpr);\n\t\treturn BROWSER ? window.devicePixelRatio : undefined;\n\t}\n})();\n"],
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"names": []
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}
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