react-inlinesvg/dist/provider.mjs.map

An SVG loader for React

{"version":3,"sources":["../src/provider.tsx","../src/config.ts","../src/modules/helpers.ts","../src/modules/cache.ts"],"sourcesContent":["import React, { createContext, ReactNode, useContext, useState } from 'react';\n\nimport CacheStore from './modules/cache';\n\nconst CacheContext = createContext<CacheStore | null>(null);\n\ninterface Props {\n  children: ReactNode;\n  name?: string;\n}\n\nexport default function CacheProvider({ children, name }: Props) {\n  const [store] = useState(() => new CacheStore({ name, persistent: true }));\n\n  return <CacheContext.Provider value={store}>{children}</CacheContext.Provider>;\n}\n\nexport function useCacheStore(): CacheStore | null {\n  return useContext(CacheContext);\n}\n","export const CACHE_NAME = 'react-inlinesvg';\nexport const CACHE_MAX_RETRIES = 10;\n\nexport const STATUS = {\n  IDLE: 'idle',\n  LOADING: 'loading',\n  LOADED: 'loaded',\n  FAILED: 'failed',\n  READY: 'ready',\n  UNSUPPORTED: 'unsupported',\n} as const;\n","function randomCharacter(character: string) {\n  return character[Math.floor(Math.random() * character.length)];\n}\n\nexport function canUseDOM(): boolean {\n  return !!(typeof window !== 'undefined' && window.document?.createElement);\n}\n\nexport function isSupportedEnvironment(): boolean {\n  return supportsInlineSVG() && typeof window !== 'undefined' && window !== null;\n}\n\n/**\n *  Remove properties from an object\n */\nexport function omit<T extends Record<string, unknown>, K extends keyof T>(\n  input: T,\n  ...filter: K[]\n): Omit<T, K> {\n  const output: any = {};\n\n  for (const key in input) {\n    if ({}.hasOwnProperty.call(input, key)) {\n      if (!filter.includes(key as unknown as K)) {\n        output[key] = input[key];\n      }\n    }\n  }\n\n  return output as Omit<T, K>;\n}\n\nexport function randomString(length: number): string {\n  const letters = 'abcdefghijklmnopqrstuvwxyz';\n  const numbers = '1234567890';\n  const charset = `${letters}${letters.toUpperCase()}${numbers}`;\n\n  let R = '';\n\n  for (let index = 0; index < length; index++) {\n    R += randomCharacter(charset);\n  }\n\n  return R;\n}\n\nexport async function request(url: string, options?: RequestInit) {\n  const response = await fetch(url, options);\n  const contentType = response.headers.get('content-type');\n  const [fileType] = (contentType ?? '').split(/ ?; ?/);\n\n  if (response.status > 299) {\n    throw new Error('Not found');\n  }\n\n  if (!['image/svg+xml', 'text/plain'].some(d => fileType.includes(d))) {\n    throw new Error(`Content type isn't valid: ${fileType}`);\n  }\n\n  return response.text();\n}\n\nexport function supportsInlineSVG(): boolean {\n  /* c8 ignore next 3 */\n  if (!document) {\n    return false;\n  }\n\n  const div = document.createElement('div');\n\n  div.innerHTML = '<svg />';\n  const svg = div.firstChild as SVGSVGElement;\n\n  return !!svg && svg.namespaceURI === 'http://www.w3.org/2000/svg';\n}\n","import { CACHE_MAX_RETRIES, CACHE_NAME, STATUS } from '../config';\nimport { StorageItem } from '../types';\n\nimport { canUseDOM, request } from './helpers';\n\nexport interface CacheStoreOptions {\n  name?: string;\n  persistent?: boolean;\n}\n\nexport default class CacheStore {\n  private cacheApi: Cache | undefined;\n  private readonly cacheStore: Map<string, StorageItem>;\n  private readonly subscribers: Array<() => void> = [];\n  public isReady = false;\n\n  constructor(options: CacheStoreOptions = {}) {\n    const { name = CACHE_NAME, persistent = false } = options;\n\n    this.cacheStore = new Map<string, StorageItem>();\n\n    const usePersistentCache = persistent && canUseDOM() && 'caches' in window;\n\n    if (usePersistentCache) {\n      // eslint-disable-next-line promise/catch-or-return\n      caches\n        .open(name)\n        .then(cache => {\n          this.cacheApi = cache;\n        })\n        .catch(error => {\n          // eslint-disable-next-line no-console\n          console.error(`Failed to open cache: ${error.message}`);\n          this.cacheApi = undefined;\n        })\n        .finally(() => {\n          this.isReady = true;\n          // Copy to avoid mutation issues\n          const callbacks = [...this.subscribers];\n\n          // Clear array efficiently\n          this.subscribers.length = 0;\n\n          callbacks.forEach(callback => {\n            try {\n              callback();\n            } catch (error: any) {\n              // eslint-disable-next-line no-console\n              console.error(`Error in CacheStore subscriber callback: ${error.message}`);\n            }\n          });\n        });\n    } else {\n      this.isReady = true;\n    }\n  }\n\n  public onReady(callback: () => void): () => void {\n    if (this.isReady) {\n      callback();\n\n      return () => {};\n    }\n\n    this.subscribers.push(callback);\n\n    return () => {\n      const index = this.subscribers.indexOf(callback);\n\n      if (index >= 0) {\n        this.subscribers.splice(index, 1);\n      }\n    };\n  }\n\n  private waitForReady(): Promise<void> {\n    if (this.isReady) {\n      return Promise.resolve();\n    }\n\n    return new Promise(resolve => {\n      this.onReady(resolve);\n    });\n  }\n\n  public async get(url: string, fetchOptions?: RequestInit) {\n    await this.fetchAndCache(url, fetchOptions);\n\n    return this.cacheStore.get(url)?.content ?? '';\n  }\n\n  public getContent(url: string): string {\n    return this.cacheStore.get(url)?.content ?? '';\n  }\n\n  public set(url: string, data: StorageItem) {\n    this.cacheStore.set(url, data);\n  }\n\n  public isCached(url: string) {\n    return this.cacheStore.get(url)?.status === STATUS.LOADED;\n  }\n\n  private async fetchAndCache(url: string, fetchOptions?: RequestInit) {\n    if (!this.isReady) {\n      await this.waitForReady();\n    }\n\n    const cache = this.cacheStore.get(url);\n\n    if (cache?.status === STATUS.LOADED) {\n      return;\n    }\n\n    if (cache?.status === STATUS.LOADING) {\n      await this.handleLoading(url, fetchOptions?.signal || undefined, async () => {\n        this.cacheStore.set(url, { content: '', status: STATUS.IDLE });\n        await this.fetchAndCache(url, fetchOptions);\n      });\n\n      return;\n    }\n\n    this.cacheStore.set(url, { content: '', status: STATUS.LOADING });\n\n    try {\n      const content = this.cacheApi\n        ? await this.fetchFromPersistentCache(url, fetchOptions)\n        : await request(url, fetchOptions);\n\n      this.cacheStore.set(url, { content, status: STATUS.LOADED });\n    } catch (error: any) {\n      this.cacheStore.set(url, { content: '', status: STATUS.FAILED });\n      throw error;\n    }\n  }\n\n  private async fetchFromPersistentCache(url: string, fetchOptions?: RequestInit): Promise<string> {\n    const data = await this.cacheApi?.match(url);\n\n    if (data) {\n      return data.text();\n    }\n\n    await this.cacheApi?.add(new Request(url, fetchOptions));\n\n    const response = await this.cacheApi?.match(url);\n\n    return (await response?.text()) ?? '';\n  }\n\n  private async handleLoading(\n    url: string,\n    signal: AbortSignal | undefined,\n    callback: () => Promise<void>,\n  ) {\n    for (let retryCount = 0; retryCount < CACHE_MAX_RETRIES; retryCount++) {\n      if (signal?.aborted) {\n        throw signal.reason instanceof Error\n          ? signal.reason\n          : new DOMException('The operation was aborted.', 'AbortError');\n      }\n\n      if (this.cacheStore.get(url)?.status !== STATUS.LOADING) {\n        return;\n      }\n\n      await sleep(0.1);\n    }\n\n    await callback();\n  }\n\n  public keys(): Array<string> {\n    return [...this.cacheStore.keys()];\n  }\n\n  public data(): Array<Record<string, StorageItem>> {\n    return [...this.cacheStore.entries()].map(([key, value]) => ({ [key]: value }));\n  }\n\n  public async delete(url: string) {\n    if (this.cacheApi) {\n      await this.cacheApi.delete(url);\n    }\n\n    this.cacheStore.delete(url);\n  }\n\n  public async clear() {\n    if (this.cacheApi) 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