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@storybook/addon-designs

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Storybook addon for embedding your design preview in addon panel

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@jsx jsx */\nimport { FC, ReactNode, useEffect, useState } from \"react\";\nimport { css, jsx } from \"@storybook/theming\";\n\nimport { Placeholder } from \"@storybook/components\";\n\nimport { IFrameConfigBase } from \"../../config\";\n\ninterface Props {\n config: IFrameConfigBase;\n\n /**\n * Whether to defer loading iframe contents\n * @default false\n */\n defer?: boolean;\n}\n\nexport const IFrame: FC<Props> = ({ config, defer = false }) => {\n const [url, setUrl] = useState(defer ? undefined : config.url);\n const [loaded, setLoaded] = useState(false);\n\n // Defer loading iframe URL.\n // Some sites (e.g. Figma) detects Fullscreen API capability on\n // initial load. This is quite common implementation. But in our usage,\n // it seems that React hold the created <iframe> element when update,\n // and it causes \"outdated Fullscreen capability\" problem.\n // This might be a browser bug that \"`fullscreenEnabled` property does not\n // updated\" but I'm not sure what the correct behavior (I couldn't see the\n // statement in the Fulscreen API spec).\n // This side-effect delays the loading of an iframe contents by one frame to\n // make sure the contents gets updated attributes.\n // https://github.com/storybookjs/addon-designs/issues/77\n useEffect(() => {\n if (!defer) {\n return;\n }\n\n const handle = requestAnimationFrame(() => {\n setUrl(config.url);\n });\n\n return () => cancelAnimationFrame(handle);\n }, [defer, config.url]);\n\n useEffect(() => {\n setLoaded(false);\n }, [url]);\n\n return (\n <div css={$container}>\n {!loaded && (\n // @ts-expect-error: @types resolution is completely broken probably due to migration to npm workspace\n <Placeholder css={$loading}>Loading...</Placeholder>\n )}\n <iframe\n css={$iframe}\n src={url}\n allowFullScreen={config.allowFullscreen}\n onLoad={() => setLoaded(true)}\n />\n </div>\n );\n};\n\nexport default IFrame;\n\nconst $container = css`\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n\n overflow: hidden;\n`;\n\nconst $loading = css`\n position: absolute;\n top: 50%;\n left: 50%;\n\n transform: translate(-50%, -50%);\n`;\n\nconst $iframe = css`\n position: relative;\n width: 100%;\n height: 100%;\n border: none;\n\n z-index: 1;\n`;\n","/** @jsx jsx */\nimport { FC, useMemo } from \"react\";\nimport { jsx } from \"@storybook/theming\";\n\nimport { IFrame } from \"./IFrame\";\n\nimport { FigmaConfig, IFrameConfigBase } from \"../../config\";\n\nexport const figmaURLPattern =\n /https:\\/\\/[\\w.-]+\\.?figma.com\\/([\\w-]+)\\/([0-9a-zA-Z]{22,128})(?:\\/.*)?$/;\n\nexport const isFigmaURL = (url: string) => figmaURLPattern.test(url);\n\ninterface Props {\n config: FigmaConfig;\n}\n\nexport const Figma: FC<Props> = ({ config }) => {\n const iframeConfig = useMemo<IFrameConfigBase>(() => {\n const isValid = isFigmaURL(config.url);\n\n if (!isValid) {\n console.warn(\n \"[storybook-addon-designs] \" +\n \"The URL you specified is not valid Figma URL.\\n\" +\n \"The addon fallbacks to normal iframe mode.\" +\n \"For more detail, please check <https://www.figma.com/developers/embed>.\",\n );\n return config;\n }\n\n const embedHost = config.embedHost || location.hostname;\n const url = `https://www.figma.com/embed?embed_host=${embedHost}&url=${config.url}`;\n\n return {\n url,\n allowFullscreen: config.allowFullscreen,\n };\n }, [config.url, config.allowFullscreen, config.embedHost]);\n\n return <IFrame defer config={iframeConfig} />;\n};\n","/** @jsx jsx */\nimport type {\n FileResponse,\n FileNodesResponse,\n FileImageResponse,\n Node,\n} from \"figma-js\";\nimport { FC, Fragment, useEffect, useMemo, useState } from \"react\";\nimport {\n FigspecFileViewer,\n FigspecFileViewerProps,\n FigspecFrameViewer,\n FigspecFrameViewerProps,\n} from \"@figspec/react\";\nimport { Placeholder } from \"@storybook/components\";\nimport { css, jsx } from \"@storybook/theming\";\n\nimport { FigspecConfig } from \"../../config\";\n\nimport { figmaURLPattern } from \"./Figma\";\n\nconst fullscreen = css`\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n`;\n\ntype RenderItem =\n | {\n type: \"file\";\n props: Pick<\n FigspecFileViewerProps,\n \"documentNode\" | \"renderedImages\" | \"link\"\n >;\n }\n | {\n type: \"frame\";\n props: Pick<FigspecFrameViewerProps, \"nodes\" | \"renderedImage\" | \"link\">;\n };\n\ntype Remote<T, E = Error> =\n | {\n state: \"fetched\";\n value: T;\n }\n | {\n state: \"failed\";\n error: E;\n }\n | {\n state: \"loading\";\n };\n\nfunction unwrapJson<T>(res: Response): Promise<T> {\n return res.status !== 200\n ? Promise.reject(res.statusText)\n : (res.json() as Promise<T>);\n}\n\n/**\n * Safely get Figma API access token.\n */\nfunction getAccessToken(cfg: FigspecConfig): string | null {\n if (cfg.accessToken) {\n return cfg.accessToken;\n }\n\n try {\n return process.env.STORYBOOK_FIGMA_ACCESS_TOKEN ?? null;\n } catch (err) {\n // The only case here is no DefinePlugin entry for `process.env` nor\n // `process.env.STORYBOOK_FIGMA_ACCESS_TOKEN`. We can safely ignore this.\n return null;\n }\n}\n\ninterface Props {\n config: FigspecConfig;\n}\n\nexport const Figspec: FC<Props> = ({ config }) => {\n const [state, setState] = useState<Remote<RenderItem, string>>({\n state: \"loading\",\n });\n\n const fetchDetails = async (signal: AbortSignal) => {\n setState({ state: \"loading\" });\n\n try {\n const match = config.url.match(figmaURLPattern);\n\n if (!match) {\n throw new Error(config.url + \" is not a valid Figma URL.\");\n }\n\n const [, , fileKey] = match;\n\n const url = new URL(config.url);\n\n const nodeId = url.searchParams.get(\"node-id\");\n\n const accessToken = getAccessToken(config);\n\n if (!accessToken) {\n throw new Error(\"Personal Access Token is required.\");\n }\n\n const headers = {\n \"X-FIGMA-TOKEN\": accessToken,\n };\n\n const nodeUrl = new URL(`https://api.figma.com/v1/files/${fileKey}`);\n const imageUrl = new URL(`https://api.figma.com/v1/images/${fileKey}`);\n\n imageUrl.searchParams.set(\"format\", \"svg\");\n\n if (!nodeId) {\n const documentNode = await fetch(nodeUrl.href, {\n headers,\n signal,\n }).then((resp) => unwrapJson<FileResponse>(resp));\n\n const frames = listAllFrames(documentNode.document);\n\n imageUrl.searchParams.set(\n \"ids\",\n frames.map((frame) => frame.id).join(\",\"),\n );\n\n const images = await fetch(imageUrl.href, {\n headers,\n signal,\n }).then((resp) => unwrapJson<FileImageResponse>(resp));\n\n setState({\n state: \"fetched\",\n value: {\n type: \"file\",\n props: {\n documentNode,\n renderedImages: images.images,\n link: config.url,\n },\n },\n });\n return;\n }\n\n nodeUrl.pathname += \"/nodes\";\n\n nodeUrl.searchParams.set(\"ids\", nodeId);\n imageUrl.searchParams.set(\"ids\", nodeId);\n\n const [nodes, images] = await Promise.all([\n fetch(nodeUrl.href, {\n headers,\n signal,\n }).then((resp) => unwrapJson<FileNodesResponse>(resp)),\n fetch(imageUrl.href, { headers, signal }).then((resp) =>\n unwrapJson<FileImageResponse>(resp),\n ),\n ]);\n\n setState({\n state: \"fetched\",\n value: {\n type: \"frame\",\n props: {\n nodes,\n renderedImage: Object.values<string>(images.images)[0],\n link: config.url,\n },\n },\n });\n } catch (err) {\n if (err instanceof DOMException && err.code === DOMException.ABORT_ERR) {\n return;\n }\n\n console.error(err);\n\n setState({\n state: \"failed\",\n error: err instanceof Error ? err.message : String(err),\n });\n }\n };\n\n useEffect(() => {\n let fulfilled = false;\n const fulfil = () => {\n fulfilled = true;\n };\n\n const ac = new AbortController();\n\n fetchDetails(ac.signal).then(fulfil, fulfil);\n\n return () => {\n if (!fulfilled) {\n ac.abort();\n }\n };\n }, [config.url]);\n\n switch (state.state) {\n case \"loading\":\n return (\n <Placeholder>\n <Fragment>Loading Figma file...</Fragment>\n </Placeholder>\n );\n case \"failed\":\n return (\n <Placeholder>\n <Fragment>Failed to load Figma file</Fragment>\n <Fragment>{state.error}</Fragment>\n </Placeholder>\n );\n case \"fetched\":\n return state.value.type === \"file\" ? (\n <FigspecFileViewer css={fullscreen} {...state.value.props} />\n ) : (\n <FigspecFrameViewer css={fullscreen} {...state.value.props} />\n );\n }\n};\n\nexport default Figspec;\n\nfunction listAllFrames(node: Node): Node[] {\n if (\"absoluteBoundingBox\" in node) {\n return [node];\n }\n\n if (!node.children || node.children.length === 0) {\n return [];\n }\n\n return node.children.map(listAllFrames).reduce((a, b) => a.concat(b), []);\n}\n","/** @jsx jsx */\nimport { addons, types, useParameter } from \"@storybook/manager-api\";\nimport { AddonPanel } from \"@storybook/components\";\nimport { jsx } from \"@storybook/theming\";\n\nimport { AddonName, PanelName, ParameterName } from \"../constants\";\nimport { ErrorBoundary } from \"./components/ErrorBoundary\";\nimport type { Config } from \"../config\";\n\nimport { Wrapper } from \"./containers/Wrapper\";\n\nconst DEFAULT_TAB_NAME = \"Design\";\n\nexport function register(renderTarget: \"panel\" | \"tab\") {\n addons.register(AddonName, (api) => {\n const title = function () {\n const param = useParameter<Config | Config[] | undefined>(ParameterName);\n\n if (!param) {\n return DEFAULT_TAB_NAME;\n }\n\n // As the addon shows an additional tab panel, it's better not to\n // use any of items' name.\n if (Array.isArray(param)) {\n return param.length > 0\n ? `${DEFAULT_TAB_NAME} (${param.length})`\n : DEFAULT_TAB_NAME;\n }\n\n return (param.name || DEFAULT_TAB_NAME) + \" (1)\";\n };\n\n if (renderTarget === \"tab\") {\n addons.add(PanelName, {\n title: DEFAULT_TAB_NAME,\n render({ active }) {\n if (!active) {\n // NOTE: Return type of render is `ReactElement`, hence returning `null` causes\n // type error. I'm using `<noscript>` in place of `null`.\n return <noscript />;\n }\n\n return (\n <ErrorBoundary>\n <Wrapper active />\n </ErrorBoundary>\n );\n },\n type: types.TAB,\n paramKey: ParameterName,\n });\n } else {\n addons.add(PanelName, {\n type: types.PANEL,\n title,\n paramKey: ParameterName,\n render({ active }) {\n return (\n <AddonPanel active={!!active}>\n <ErrorBoundary>\n <Wrapper active={!!active} />\n </ErrorBoundary>\n </AddonPanel>\n );\n },\n });\n }\n });\n}\n","/**\n * The identifier of the addon.\n */\nexport const AddonName = \"STORYBOOK_ADDON_DESIGNS\";\n\n/**\n * The name of the panel.\n */\nexport const PanelName = AddonName + \"/panel\";\n\n/**\n * Addon events.\n */\nexport const Events = {\n UpdateConfig: AddonName + \"/update_config\",\n};\n\n/**\n * A key of story parameters.\n */\nexport const ParameterName = \"design\";\n","/** @jsx jsx */\nimport { Component, ErrorInfo, Fragment } from \"react\";\nimport { Link, Placeholder } from \"@storybook/components\";\nimport { jsx } from \"@storybook/theming\";\n\ntype State =\n | {\n hasError: false;\n }\n | {\n hasError: true;\n error: unknown;\n };\n\nexport class ErrorBoundary extends Component<{ children: React.ReactNode }> {\n public state: State = { hasError: false };\n\n static getDerivedStateFromError(error: unknown): State {\n return {\n hasError: true,\n error,\n };\n }\n\n override componentDidCatch(error: unknown, info: ErrorInfo): void {\n console.group(\n \"An error occurred during rendering Addon panel of storybook-addon-designs\",\n );\n console.log(\"--- Error ---\");\n console.error(error);\n console.log(\"--- React Component Stack ---\");\n console.error(info.componentStack);\n console.groupEnd();\n }\n\n override render() {\n if (this.state.hasError) {\n return (\n <Placeholder>\n <Fragment>Failed to render addon UI</Fragment>\n <Fragment>\n <p>\n Sorry, this addon has crashed due to the below error has thrown\n during rendering the addon UI.\n </p>\n <pre>{String(this.state.error)}</pre>\n <p>\n See console log for more details. To clear the error state, please\n reload the page.{\" \"}\n <Link\n href=\"https://github.com/storybookjs/addon-designs/issues/new?assignees=&labels=category%3A+bug&template=bug_report.yml\"\n target=\"_blank\"\n rel=\"noopener\"\n withArrow\n cancel={false}\n >\n Bug report\n </Link>\n </p>\n </Fragment>\n </Placeholder>\n );\n }\n\n return this.props.children;\n }\n}\n","/** @jsx jsx */\nimport { FC, useEffect, useState } from \"react\";\nimport { jsx } from \"@storybook/theming\";\nimport { useParameter, useStorybookState } from \"@storybook/manager-api\";\n\nimport { Config } from \"../../config\";\nimport { ParameterName } from \"../../constants\";\n\nimport { Wrapper as Pure } from \"../components/Wrapper\";\n\ninterface Props {\n active: boolean;\n}\n\nexport const Wrapper: FC<Props> = ({ active }) => {\n const state = useStorybookState();\n const config = useParameter(ParameterName) as Config;\n\n // Whether the addon panel has been visible to a user with the config.\n const [onceRevealed, setOnceRevealed] = useState(active);\n\n // When a user navigates to another story or updates a story parameter,\n // sync `onceRevealed` to `active`.\n useEffect(() => {\n setOnceRevealed(active);\n }, [config]);\n\n // When a user enters the \"Design\" tab, mark the addon panel \"once revealed\".\n useEffect(() => {\n if (active) {\n setOnceRevealed(true);\n }\n }, [active]);\n\n // If a user has not entered the \"Design\" tab for the current story yet,\n // do not render panel contents. This makes loading embeds explicit and\n // prevents embedded sites from obtaining viewport (iframe) size behind,\n // which often leads to incorrect measurements.\n if (!onceRevealed) {\n return null;\n }\n\n return <Pure key={state.storyId} config={config} />;\n};\n\nexport default Wrapper;\n","/** @jsx jsx */\nimport { Fragment, lazy, Suspense, FC } from \"react\";\nimport { jsx } from \"@storybook/theming\";\n\nimport { Link, Placeholder } from \"@storybook/components\";\n\nimport { Config } from \"../../config\";\n\nimport { Figma } from \"./Figma\";\nimport { IFrame } from \"./IFrame\";\nimport { ImagePreview } from \"./Image\";\nimport { LinkPanel } from \"./LinkPanel\";\nimport { Sketch } from \"./Sketch\";\nimport { Tab, Tabs } from \"./Tabs\";\n\nconst Figspec = lazy(() => import(\"./Figspec\"));\n\ninterface Props {\n config?: Config | Config[];\n}\n\nexport const Wrapper: FC<Props> = ({ config }) => {\n if (!config || (\"length\" in config && config.length === 0)) {\n return (\n <Placeholder>\n <Fragment>No designs found</Fragment>\n <Fragment>\n Learn how to{\" \"}\n <Link\n href=\"https://github.com/storybookjs/addon-designs#3-add-it-to-story\"\n target=\"_blank\"\n rel=\"noopener\"\n withArrow\n cancel={false}\n >\n display design preview for the story\n </Link>\n </Fragment>\n </Placeholder>\n );\n }\n\n const tabs = [...(config instanceof Array ? config : [config])].map<Tab>(\n (cfg) => {\n const meta: Omit<Tab, \"content\"> = {\n id: JSON.stringify(cfg),\n name:\n cfg.name ||\n (cfg.type as Config[\"type\"] | undefined)?.toUpperCase() ||\n \"ERROR\",\n offscreen: cfg.offscreen ?? true,\n };\n\n switch (cfg.type) {\n case \"iframe\":\n return {\n ...meta,\n content: <IFrame config={cfg} />,\n };\n case \"figma\":\n return {\n ...meta,\n content: <Figma config={cfg} />,\n offscreen: false,\n };\n case \"sketch\":\n return {\n ...meta,\n content: <Sketch config={cfg} />,\n };\n case \"figspec\":\n case \"experimental-figspec\":\n if (cfg.type === \"experimental-figspec\") {\n console.warn(\n \"[storybook-addon-designs] `experimental-figspec` is deprecated. We will remove it in v7.0. Please replace it to `figspec` type.\",\n );\n }\n\n return {\n ...meta,\n content: (\n <Suspense fallback=\"Preparing Figspec viewer...\">\n <Figspec config={cfg} />\n </Suspense>\n ),\n offscreen: false,\n };\n case \"image\":\n return {\n ...meta,\n content: <ImagePreview config={cfg} />,\n };\n case \"link\":\n return {\n ...meta,\n content: <LinkPanel config={cfg} />,\n };\n }\n\n // FIXME: Link is temporarily set to source code due to \"Available config types\" section\n // had been removed from README. We need to add a list to README or docs site.\n // This is very much user-unfriendly, especially for whom not familier with TypeScript.\n return {\n ...meta,\n content: (\n <Placeholder>\n <Fragment>Invalid config type</Fragment>\n <Fragment>\n Config type you set is not supported. Please choose one from{\" \"}\n <Link\n href=\"https://github.com/storybookjs/addon-designs/blob/master/packages/storybook-addon-designs/src/config.ts\"\n target=\"_blank\"\n rel=\"noopener\"\n withArrow\n cancel={false}\n >\n available config types\n </Link>\n </Fragment>\n </Placeholder>\n ),\n };\n },\n );\n\n if (tabs.length === 1) {\n return <div>{tabs[0].content}</div>;\n }\n\n return <Tabs tabs={tabs} deps={[config]} />;\n};\n\nexport default Wrapper;\n","/** @jsx jsx */\nimport { Fragment, useMemo, CSSProperties, FC } from \"react\";\nimport { css, jsx } from \"@storybook/theming\";\n\nimport { FlexBar, Separator } from \"@storybook/components\";\n\nimport { Pan } from \"./Pan\";\nimport { ZoomButtons } from \"./ZoomButtons\";\n\nimport { ImageConfig } from \"../../config\";\n\nimport { useZoom } from \"./hooks/useZoom\";\n\ninterface Props {\n config: ImageConfig;\n}\n\nexport const ImagePreview: FC<Props> = ({ config }) => {\n const zoom = useZoom(config.scale || 1, [config.scale]);\n\n const imageStyles = useMemo<CSSProperties>(\n () => ({\n transform: `scale(${zoom.scale})`,\n }),\n [zoom.scale],\n );\n\n return (\n <div css={$container}>\n <FlexBar border>\n <Fragment key=\"left\">\n <p>\n <b>Image</b>\n </p>\n <Separator />\n <ZoomButtons\n onReset={zoom.resetZoom}\n onZoomIn={zoom.zoomIn}\n onZoomOut={zoom.zoomOut}\n />\n </Fragment>\n </FlexBar>\n <Pan css={$preview} defaultValue={config.offset}>\n <img css={$image} src={config.url} style={imageStyles} />\n </Pan>\n </div>\n );\n};\n\nexport default ImagePreview;\n\nconst $container = css`\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n display: flex;\n flex-direction: column;\n align-items: stretch;\n`;\n\nconst $preview = css`\n flex-grow: 1;\n`;\n\nconst $image = css`\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n margin: auto;\n\n pointer-events: none;\n border-radius: 1px;\n box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.15);\n`;\n","/** @jsx jsx */\nimport {\n useEffect,\n useMemo,\n useState,\n CSSProperties,\n FC,\n ReactNode,\n} from \"react\";\nimport { css, jsx } from \"@storybook/theming\";\n\nimport { usePan, Point2D } from \"./hooks/usePan\";\n\ninterface Props {\n children: ReactNode;\n\n className?: string;\n style?: CSSProperties;\n\n defaultValue?: Point2D;\n\n value?: Point2D;\n\n onChange?(delta: Point2D): any;\n}\n\nexport const Pan: FC<Props> = ({\n children,\n className,\n style,\n defaultValue,\n value,\n onChange,\n}) => {\n const [offset, move] = useState<Point2D>([0, 0]);\n\n useEffect(() => {\n if (defaultValue) {\n move(defaultValue);\n } else {\n move(value || [0, 0]);\n }\n }, [defaultValue]);\n\n const panHandlers = usePan(\n (delta) => {\n if (onChange) {\n onChange(delta);\n }\n\n move((prev) => [prev[0] + delta[0], prev[1] + delta[1]]);\n },\n [move, onChange],\n );\n\n const transform = useMemo<CSSProperties>(() => {\n const vec = value || offset;\n\n return {\n transform: `translate(${vec[0]}px, ${vec[1]}px)`,\n };\n }, [value, offset]);\n\n return (\n <div css={$container} className={className} style={style} {...panHandlers}>\n <div css={$transformLayer} style={transform}>\n {children}\n </div>\n </div>\n );\n};\n\nexport default Pan;\n\nconst $container = css`\n position: relative;\n overflow: hidden;\n\n &:active {\n cursor: move;\n }\n`;\n\nconst $transformLayer = css`\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n`;\n","import {\n useCallback,\n useState,\n DependencyList,\n MouseEventHandler,\n TouchEventHandler,\n} from \"react\";\n\nexport type Point2D = [number, number];\n\ninterface PanController {\n onMouseDown: MouseEventHandler;\n onMouseMove: MouseEventHandler;\n onMouseUp: MouseEventHandler;\n onMouseLeave: MouseEventHandler;\n onTouchStart: TouchEventHandler;\n onTouchMove: TouchEventHandler;\n onTouchCancel: TouchEventHandler;\n onTouchEnd: TouchEventHandler;\n}\n\n/**\n * Emulate MouseEvent.movementX and MouseEvent.movementY(Candidate Recommendation)\n * Needed due to lack of support in Safari\n */\ntype UsePan = (\n cb: (movement: Point2D) => any,\n deps: DependencyList,\n) => PanController;\n\nexport const usePan: UsePan = (cb, deps) => {\n const [lastPosition, savePosition] = useState<Point2D>([0, 0]);\n const [isPanning, setPanState] = useState<boolean>(false);\n\n const onMouseDown = useCallback<PanController[\"onMouseDown\"]>(\n (ev) => {\n // Ensure to turn on pan mode only for main button down\n if (ev.button !== 0) {\n return;\n }\n\n savePosition([ev.screenX, ev.screenY]);\n setPanState(true);\n },\n [setPanState, savePosition],\n );\n\n const onTouchStart = useCallback<PanController[\"onTouchStart\"]>(\n (ev) => {\n const touch = ev.touches[0];\n\n savePosition([touch.screenX, touch.screenY]);\n setPanState(true);\n },\n [setPanState, savePosition],\n );\n\n const move = useCallback(\n (p: Point2D) => {\n if (!isPanning) {\n return;\n }\n\n savePosition((prev) => {\n cb([p[0] - prev[0], p[1] - prev[1]]);\n\n return p;\n });\n },\n [savePosition, isPanning, ...deps],\n );\n\n const onMouseMove = useCallback<PanController[\"onMouseMove\"]>(\n (ev) => {\n const { screenX, screenY } = ev;\n\n move([screenX, screenY]);\n },\n [move],\n );\n\n const onTouchMove = useCallback<PanController[\"onTouchMove\"]>(\n (ev) => {\n const { screenX, screenY } = ev.touches[0];\n\n move([screenX, screenY]);\n },\n [savePosition, isPanning, ...deps],\n );\n\n const clear = useCallback(() => {\n savePosition([0, 0]);\n setPanState(false);\n }, [setPanState, savePosition]);\n\n return {\n onMouseDown,\n onMouseMove,\n onMouseUp: clear,\n onMouseLeave: clear,\n onTouchStart,\n onTouchMove,\n onTouchCancel: clear,\n onTouchEnd: clear,\n };\n};\n","/** @jsx jsx */\nimport { Fragment, FC } from \"react\";\nimport { jsx } from \"@storybook/theming\";\n\nimport { IconButton, Icons } from \"@storybook/components\";\n\ninterface Props {\n onZoomIn?(): any;\n onZoomOut?(): any;\n onReset?(): any;\n}\n\nexport const ZoomButtons: FC<Props> = ({ onZoomIn, onZoomOut, onReset }) => (\n <Fragment>\n <IconButton onClick={onZoomIn}>\n <Icons icon=\"zoom\" />\n </IconButton>\n <IconButton onClick={onZoomOut}>\n <Icons icon=\"zoomout\" />\n </IconButton>\n <IconButton onClick={onReset}>\n <Icons icon=\"zoomreset\" />\n </IconButton>\n </Fragment>\n);\n\nexport default ZoomButtons;\n","import { useCallback, useEffect, useState, DependencyList } from \"react\";\n\ntype UseZoom = (\n initialValue: number,\n deps: DependencyList,\n) => {\n /**\n * Current scale factor.\n * 0.0 < n < Infinity\n */\n scale: number;\n\n /**\n * Zoom in\n */\n zoomIn(): void;\n\n /**\n * Zoom out\n */\n zoomOut(): void;\n\n /**\n * Reset scale factor to 1.\n */\n resetZoom(): void;\n};\n\nexport const useZoom: UseZoom = (initialValue, deps) => {\n const [scale, setScale] = useState<number>(1);\n\n useEffect(() => {\n setScale(initialValue);\n }, deps);\n\n const zoomIn = useCallback(() => {\n setScale((prevScale) => prevScale + 0.1);\n }, [setScale]);\n\n const zoomOut = useCallback(() => {\n setScale((prevScale) => Math.max(prevScale - 0.1, 0.1));\n }, [setScale]);\n\n const resetZoom = useCallback(() => {\n setScale(1);\n }, [setScale]);\n\n return { scale, zoomIn, zoomOut, resetZoom };\n};\n","/** @jsx jsx */\nimport { FC } from \"react\";\nimport { css, jsx } from \"@storybook/theming\";\n\nimport { Link } from \"@storybook/components\";\n\nimport { LinkConfig } from \"../../config\";\n\ninterface Props {\n config: LinkConfig;\n}\n\nexport const LinkPanel: FC<Props> = ({ config }) => (\n <div css={$container}>\n <Link\n cancel={false}\n href={config.url}\n target={config.target ?? \"_blank\"}\n rel={config.rel ?? \"noopener\"}\n withArrow={config.showArrow ?? true}\n >\n {config.label || config.url}\n </Link>\n </div>\n);\n\nexport default LinkPanel;\n\nconst $container = css`\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n display: flex;\n justify-content: center;\n align-items: center;\n`;\n","/** @jsx jsx */\nimport { Link, Placeholder } from \"@storybook/components\";\nimport { jsx } from \"@storybook/theming\";\nimport { FC, Fragment, ReactNode, useMemo } from \"react\";\n\nimport { SketchConfig, IFrameConfigBase } from \"../../config\";\n\nimport { IFrame } from \"./IFrame\";\n\ninterface ParseSucceeded<T> {\n valid: true;\n\n data: T;\n}\n\ninterface ParseFailed {\n valid: false;\n\n error: ReactNode;\n}\n\ntype Parser<T> = (url: URL) => ParseSucceeded<T> | ParseFailed;\n\nexport const v1UrlParser: Parser<IFrameConfigBase> = (url) => {\n if (url.protocol !== \"https:\") {\n return {\n valid: false,\n error: (\n <Fragment>\n Expected HTTPS link, received <code>{url.protocol}</code>.\n </Fragment>\n ),\n };\n }\n\n if (url.hostname !== \"www.sketch.com\") {\n return {\n valid: false,\n error: (\n <Fragment>\n Expected a hostname <code>www.sketch.com</code>, received{\" \"}\n <code>{url.hostname}</code>\n </Fragment>\n ),\n };\n }\n\n const malformedUrlErrorMessage = (\n <Fragment>\n Expected pathname <code>{\"/s/<string>/a/<string>\"}</code>, received{\" \"}\n <code>{url.pathname}</code>.\n </Fragment>\n );\n\n const pathSegments = url.pathname.split(\"/\").slice(1);\n if (pathSegments.length < 4) {\n return {\n valid: false,\n error: malformedUrlErrorMessage,\n };\n }\n\n if (pathSegments[0] === \"embed\") {\n return {\n valid: true,\n data: {\n url: url.href,\n offscreen: false,\n },\n };\n }\n\n const [s, sid, a, aid] = pathSegments;\n if (s !== \"s\" || !sid || a !== \"a\" || !aid) {\n return {\n valid: false,\n error: malformedUrlErrorMessage,\n };\n }\n\n return {\n valid: true,\n data: {\n url: `https://www.sketch.com/embed/s/${sid}/a/${aid}`,\n offscreen: false,\n },\n };\n};\n\ninterface Props {\n config: SketchConfig;\n}\n\nexport const Sketch: FC<Props> = ({ config }) => {\n const result = useMemo(() => {\n const parsed = v1UrlParser(new URL(config.url));\n if (!parsed.valid) {\n return parsed;\n }\n\n return {\n ...parsed,\n data: {\n ...config,\n ...parsed.data,\n },\n };\n }, [config]);\n\n if (!result.valid) {\n return (\n <Placeholder>\n <Fragment>Invalid Sketch URL</Fragment>\n <Fragment>{result.error}</Fragment>\n </Placeholder>\n );\n }\n\n return <IFrame defer config={result.data} />;\n};\n","/** @jsx jsx */\nimport { DependencyList, FC, ReactNode, useEffect, useState } from \"react\";\nimport { jsx } from \"@storybook/theming\";\n\nimport { Tabs as SbTabs } from \"@storybook/components\";\n\nexport interface Tab {\n id: string;\n name: string;\n content: ReactNode;\n offscreen: boolean;\n}\n\nexport interface TabsProps {\n tabs: readonly Tab[];\n\n /**\n * Effect trigger for tab initialization. Everytime this dependency list is\n * updated, the selection goes to the first tab.\n */\n deps?: DependencyList;\n}\n\nexport const Tabs: FC<TabsProps> = ({ tabs, deps = [] }) => {\n const [selected, setSelected] = useState(tabs[0].id);\n\n useEffect(() => {\n setSelected(tabs[0].id);\n }, deps);\n\n return (\n <SbTabs absolute selected={selected} actions={{ onSelect: setSelected }}>\n {tabs.map((tab) => (\n <div key={tab.id} id={tab.id} title={tab.name}>\n {tab.offscreen || selected === tab.id ? tab.content : null}\n </div>\n ))}\n </SbTabs>\n );\n};\n","import { register } from \"./manager/register\";\n\nregister(\"tab\");\n"]}