telegram-tt/dist/941.a1bb68030d234cd6f825.js.map

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generateIdFor from './generateIdFor';\n\nexport interface CancellableCallback {\n  (\n    ...args: any[]\n  ): void;\n\n  isCanceled?: boolean;\n  acceptsBuffer?: boolean;\n}\n\ntype CallMethodData = {\n  type: 'callMethod';\n  messageId?: string;\n  name: string;\n  args: any;\n};\n\ntype OriginMessageData = CallMethodData | {\n  type: 'cancelProgress';\n  messageId: string;\n};\n\nexport interface OriginMessageEvent {\n  data: OriginMessageData;\n}\n\nexport type WorkerMessageData = {\n  type: 'methodResponse';\n  messageId: string;\n  response?: any;\n  error?: { message: string };\n} | {\n  type: 'methodCallback';\n  messageId: string;\n  callbackArgs: any[];\n} | {\n  type: 'unhandledError';\n  error?: { message: string };\n};\n\nexport interface WorkerMessageEvent {\n  data: WorkerMessageData;\n}\n\ninterface RequestStates {\n  messageId: string;\n  resolve: Function;\n  reject: Function;\n  callback: AnyToVoidFunction;\n}\n\n// TODO Replace `any` with proper generics\nexport default class WorkerConnector {\n  private requestStates = new Map<string, RequestStates>();\n\n  private requestStatesByCallback = new Map<AnyToVoidFunction, RequestStates>();\n\n  constructor(private worker: Worker) {\n    this.subscribe();\n  }\n\n  request(messageData: { name: string; args: any }) {\n    const { worker, requestStates, requestStatesByCallback } = this;\n\n    const messageId = generateIdFor(requestStates);\n    const payload: CallMethodData = {\n      type: 'callMethod',\n      messageId,\n      ...messageData,\n    };\n\n    const requestState = { messageId } as RequestStates;\n\n    // Re-wrap type because of `postMessage`\n    const promise: Promise<any> = new Promise((resolve, reject) => {\n      Object.assign(requestState, { resolve, reject });\n    });\n\n    if (typeof payload.args[payload.args.length - 1] === 'function') {\n      const callback = payload.args.pop() as AnyToVoidFunction;\n      requestState.callback = callback;\n      requestStatesByCallback.set(callback, requestState);\n    }\n\n    requestStates.set(messageId, requestState);\n    promise\n      .catch(() => undefined)\n      .finally(() => {\n        requestStates.delete(messageId);\n\n        if (requestState.callback) {\n          requestStatesByCallback.delete(requestState.callback);\n        }\n      });\n\n    worker.postMessage(payload);\n\n    return promise;\n  }\n\n  cancelCallback(progressCallback: CancellableCallback) {\n    progressCallback.isCanceled = true;\n\n    const { messageId } = this.requestStatesByCallback.get(progressCallback) || {};\n    if (!messageId) {\n      return;\n    }\n\n    this.worker.postMessage({\n      type: 'cancelProgress',\n      messageId,\n    });\n  }\n\n  private subscribe() {\n    const { worker, requestStates } = this;\n\n    worker.addEventListener('message', ({ data }: WorkerMessageEvent) => {\n      if (data.type === 'methodResponse') {\n        const requestState = requestStates.get(data.messageId);\n        if (requestState) {\n          if (data.error) {\n            requestState.reject(data.error);\n          } else {\n            requestState.resolve(data.response);\n          }\n        }\n      } else if (data.type === 'methodCallback') {\n        const requestState = requestStates.get(data.messageId);\n        requestState?.callback?.(...data.callbackArgs);\n      } else if (data.type === 'unhandledError') {\n        throw data.error;\n      }\n    });\n  }\n}\n","import {\n  DPR,\n  IS_SINGLE_COLUMN_LAYOUT,\n  IS_SAFARI,\n} from '../../util/environment';\nimport WorkerConnector from '../../util/WorkerConnector';\nimport { animate } from '../../util/animation';\nimport cycleRestrict from '../../util/cycleRestrict';\n\ninterface Params {\n  noLoop?: boolean;\n  size?: number;\n  quality?: number;\n  isLowPriority?: boolean;\n}\n\ntype Frames = ArrayBuffer[];\ntype Chunks = (Frames | undefined)[];\n\n// TODO Consider removing chunks\nconst CHUNK_SIZE = 1;\nconst MAX_WORKERS = 4;\nconst HIGH_PRIORITY_QUALITY = IS_SINGLE_COLUMN_LAYOUT ? 0.75 : 1;\nconst LOW_PRIORITY_QUALITY = 0.75;\nconst HIGH_PRIORITY_MAX_FPS = 60;\nconst LOW_PRIORITY_MAX_FPS = 30;\nconst HIGH_PRIORITY_CACHE_MODULO = IS_SAFARI ? 2 : 4;\nconst LOW_PRIORITY_CACHE_MODULO = 0;\n\nconst workers = new Array(MAX_WORKERS).fill(undefined).map(\n  () => new WorkerConnector(new Worker(new URL('./rlottie.worker.ts', import.meta.url))),\n);\nlet lastWorkerIndex = -1;\n\nclass RLottie {\n  // Config\n\n  private imgSize!: number;\n\n  private key!: string;\n\n  private msPerFrame!: number;\n\n  private reduceFactor!: number;\n\n  private cacheModulo!: number;\n\n  private chunkSize!: number;\n\n  private workerIndex!: number;\n\n  private chunks: Chunks = [];\n\n  private framesCount?: number;\n\n  private chunksCount?: number;\n\n  // Container\n\n  private canvas = document.createElement('canvas');\n\n  private ctx = this.canvas.getContext('2d')!;\n\n  // State\n\n  private isAnimating = false;\n\n  private isWaiting = true;\n\n  private isOnLoadFired = false;\n\n  private isDestroyed = false;\n\n  private approxFrameIndex = 0;\n\n  private prevFrameIndex = -1;\n\n  private stopFrameIndex? = 0;\n\n  private speed = 1;\n\n  private direction: 1 | -1 = 1;\n\n  private lastRenderAt?: number;\n\n  constructor(\n    private id: string,\n    private container: HTMLDivElement,\n    private animationData: AnyLiteral,\n    private params: Params = {},\n    private onLoad?: () => void,\n  ) {\n    this.initContainer();\n    this.initConfig();\n    this.initRenderer();\n  }\n\n  isPlaying() {\n    return this.isAnimating || this.isWaiting;\n  }\n\n  play() {\n    this.stopFrameIndex = undefined;\n    this.direction = 1;\n    this.doPlay();\n  }\n\n  pause() {\n    if (this.isWaiting) {\n      this.stopFrameIndex = this.approxFrameIndex;\n    } else {\n      this.isAnimating = false;\n    }\n\n    const currentChunkIndex = this.getChunkIndex(this.approxFrameIndex);\n    this.chunks = this.chunks.map((chunk, i) => (i === currentChunkIndex ? chunk : undefined));\n  }\n\n  goToAndPlay(frameIndex: number) {\n    this.approxFrameIndex = Math.floor(frameIndex / this.reduceFactor);\n    this.stopFrameIndex = undefined;\n    this.direction = 1;\n    this.doPlay();\n  }\n\n  goToAndStop(frameIndex: number) {\n    this.approxFrameIndex = Math.floor(frameIndex / this.reduceFactor);\n    this.stopFrameIndex = Math.floor(frameIndex / this.reduceFactor);\n    this.direction = 1;\n    this.doPlay();\n  }\n\n  playSegment([startFrameIndex, stopFrameIndex]: [number, number]) {\n    this.approxFrameIndex = Math.floor(startFrameIndex / this.reduceFactor);\n    this.stopFrameIndex = Math.floor(stopFrameIndex / this.reduceFactor);\n    this.direction = startFrameIndex < stopFrameIndex ? 1 : -1;\n    this.doPlay();\n  }\n\n  setSpeed(speed: number) {\n    this.speed = speed;\n  }\n\n  destroy() {\n    this.isDestroyed = true;\n    this.pause();\n    this.destroyRenderer();\n    this.destroyContainer();\n  }\n\n  private initContainer() {\n    if (!(this.container.parentNode instanceof HTMLElement)) {\n      throw new Error('[RLottie] Container is not mounted');\n    }\n\n    let { size } = this.params;\n\n    if (!size) {\n      size = (\n        this.container.offsetWidth\n        || parseInt(this.container.style.width, 10)\n        || this.container.parentNode.offsetWidth\n      );\n\n      if (!size) {\n        throw new Error('[RLottie] Failed to detect width from container');\n      }\n    }\n\n    this.canvas.style.width = `${size}px`;\n    this.canvas.style.height = `${size}px`;\n\n    const { isLowPriority, quality = isLowPriority ? LOW_PRIORITY_QUALITY : HIGH_PRIORITY_QUALITY } = this.params;\n    // Reduced quality only looks acceptable on high DPR screens\n    const imgSize = Math.round(size * Math.max(DPR * quality, 1));\n\n    this.canvas.width = imgSize;\n    this.canvas.height = imgSize;\n\n    this.container.appendChild(this.canvas);\n\n    this.imgSize = imgSize;\n  }\n\n  private initConfig() {\n    this.key = `${this.id}_${this.imgSize}`;\n\n    const { isLowPriority } = this.params;\n\n    const maxFps = isLowPriority ? LOW_PRIORITY_MAX_FPS : HIGH_PRIORITY_MAX_FPS;\n    const sourceFps = this.animationData.fr || maxFps;\n    this.reduceFactor = sourceFps % maxFps === 0 ? sourceFps / maxFps : 1;\n    this.msPerFrame = 1000 / (sourceFps / this.reduceFactor);\n    this.cacheModulo = isLowPriority ? LOW_PRIORITY_CACHE_MODULO : HIGH_PRIORITY_CACHE_MODULO;\n    this.chunkSize = CHUNK_SIZE;\n  }\n\n  private destroyContainer() {\n    this.canvas.remove();\n  }\n\n  private initRenderer() {\n    this.workerIndex = cycleRestrict(MAX_WORKERS, ++lastWorkerIndex);\n\n    workers[this.workerIndex].request({\n      name: 'init',\n      args: [\n        this.key,\n        this.animationData,\n        this.imgSize,\n        this.params.isLowPriority,\n        this.reduceFactor,\n        this.onRendererInit.bind(this),\n      ],\n    });\n  }\n\n  private destroyRenderer() {\n    workers[this.workerIndex].request({\n      name: 'destroy',\n      args: [this.key],\n    });\n  }\n\n  private onRendererInit(framesCount: number) {\n    this.framesCount = framesCount;\n    this.chunksCount = Math.ceil(framesCount / this.chunkSize);\n\n    if (this.isWaiting) {\n      this.doPlay();\n    }\n  }\n\n  private doPlay() {\n    if (!this.framesCount) {\n      return;\n    }\n\n    if (this.isDestroyed) {\n      return;\n    }\n\n    if (this.isAnimating) {\n      return;\n    }\n\n    if (!this.isWaiting) {\n      this.lastRenderAt = undefined;\n    }\n\n    this.isAnimating = true;\n    this.isWaiting = false;\n\n    animate(() => {\n      if (this.isDestroyed) {\n        return false;\n      }\n\n      // Paused from outside\n      if (!this.isAnimating && this.isOnLoadFired) {\n        return false;\n      }\n\n      const frameIndex = Math.round(this.approxFrameIndex);\n      const chunkIndex = this.getChunkIndex(frameIndex);\n      const chunk = this.chunks[chunkIndex];\n      if (!chunk) {\n        this.requestChunk(chunkIndex);\n        this.isAnimating = false;\n        this.isWaiting = true;\n        return false;\n      }\n\n      if (this.cacheModulo && chunkIndex % this.cacheModulo === 0) {\n        this.cleanupPrevChunk(chunkIndex);\n      }\n\n      this.requestNextChunk(chunkIndex);\n\n      if (frameIndex !== this.prevFrameIndex) {\n        const frame = this.getFrame(frameIndex);\n        if (!frame) {\n          this.isAnimating = false;\n          this.isWaiting = true;\n          return false;\n        }\n\n        const imageData = new ImageData(new Uint8ClampedArray(frame), this.imgSize, this.imgSize);\n        this.ctx.putImageData(imageData, 0, 0);\n\n        if (this.onLoad && !this.isOnLoadFired) {\n          this.isOnLoadFired = true;\n          this.onLoad();\n        }\n\n        this.prevFrameIndex = frameIndex;\n      }\n\n      const now = Date.now();\n      const currentSpeed = this.lastRenderAt ? this.msPerFrame / (now - this.lastRenderAt) : 1;\n      const delta = Math.min(1, (this.direction * this.speed) / currentSpeed);\n      const expectedNextFrameIndex = Math.round(this.approxFrameIndex + delta);\n\n      this.lastRenderAt = now;\n\n      // Forward animation finished\n      if (delta > 0 && (frameIndex === this.framesCount! - 1 || expectedNextFrameIndex > this.framesCount! - 1)) {\n        if (this.params.noLoop) {\n          this.isAnimating = false;\n          return false;\n        }\n\n        this.approxFrameIndex = 0;\n\n        // Backward animation finished\n      } else if (delta < 0 && (frameIndex === 0 || expectedNextFrameIndex < 0)) {\n        if (this.params.noLoop) {\n          this.isAnimating = false;\n          return false;\n        }\n\n        this.approxFrameIndex = this.framesCount! - 1;\n\n        // Stop frame reached\n      } else if (\n        this.stopFrameIndex !== undefined\n        && (frameIndex === this.stopFrameIndex\n        || (\n          (delta > 0 && expectedNextFrameIndex > this.stopFrameIndex)\n          || (delta < 0 && expectedNextFrameIndex < this.stopFrameIndex)\n        ))\n      ) {\n        this.stopFrameIndex = undefined;\n        this.isAnimating = false;\n        return false;\n\n        // Preparing next frame\n      } else {\n        this.approxFrameIndex += delta;\n      }\n\n      const nextFrameIndex = Math.round(this.approxFrameIndex);\n\n      if (!this.getFrame(nextFrameIndex)) {\n        this.requestChunk(this.getChunkIndex(nextFrameIndex));\n        this.isWaiting = true;\n        this.isAnimating = false;\n        return false;\n      }\n\n      return true;\n    });\n  }\n\n  private getFrame(frameIndex: number) {\n    const chunkIndex = this.getChunkIndex(frameIndex);\n    const indexInChunk = this.getFrameIndexInChunk(frameIndex);\n    const chunk = this.chunks[chunkIndex];\n    if (!chunk) {\n      return undefined;\n    }\n\n    return chunk[indexInChunk];\n  }\n\n  private getFrameIndexInChunk(frameIndex: number) {\n    const chunkIndex = this.getChunkIndex(frameIndex);\n    return frameIndex - chunkIndex * this.chunkSize;\n  }\n\n  private getChunkIndex(frameIndex: number) {\n    return Math.floor(frameIndex / this.chunkSize);\n  }\n\n  private requestChunk(chunkIndex: number) {\n    if (this.chunks[chunkIndex]) {\n      return;\n    }\n\n    this.chunks[chunkIndex] = [];\n\n    const fromIndex = chunkIndex * this.chunkSize;\n    const toIndex = Math.min(fromIndex + this.chunkSize - 1, this.framesCount! - 1);\n\n    workers[this.workerIndex].request({\n      name: 'renderFrames',\n      args: [this.key, fromIndex, toIndex, this.onFrameLoad.bind(this)],\n    });\n  }\n\n  private cleanupPrevChunk(chunkIndex: number) {\n    if (this.chunksCount! < 3) {\n      return;\n    }\n\n    const prevChunkIndex = cycleRestrict(this.chunksCount!, chunkIndex - 1);\n    this.chunks[prevChunkIndex] = undefined;\n  }\n\n  private requestNextChunk(chunkIndex: number) {\n    if (this.chunksCount === 1) {\n      return;\n    }\n\n    const nextChunkIndex = cycleRestrict(this.chunksCount!, chunkIndex + 1);\n\n    if (!this.chunks[nextChunkIndex]) {\n      this.requestChunk(nextChunkIndex);\n    }\n  }\n\n  private onFrameLoad(frameIndex: number, arrayBuffer: ArrayBuffer) {\n    const chunkIndex = this.getChunkIndex(frameIndex);\n    const chunk = this.chunks[chunkIndex];\n    // Frame can be skipped and chunk can be already cleaned up\n    if (!chunk) {\n      return;\n    }\n\n    chunk[this.getFrameIndexInChunk(frameIndex)] = arrayBuffer;\n\n    if (this.isWaiting) {\n      this.doPlay();\n    }\n  }\n}\n\nexport default RLottie;\n","export default function cycleRestrict(length: number, index: number) {\n  return index - Math.floor(index / length) * length;\n}\n"],"names":["WorkerConnector","constructor","worker","Map","this","subscribe","request","messageData","requestStates","requestStatesByCallback","messageId","generateIdFor","payload","type","requestState","promise","Promise","resolve","reject","Object","assign","args","length","callback","pop","set","catch","finally","delete","postMessage","cancelCallback","progressCallback","isCanceled","get","addEventListener","data","error","response","callbackArgs","HIGH_PRIORITY_QUALITY","IS_SINGLE_COLUMN_LAYOUT","LOW_PRIORITY_QUALITY","HIGH_PRIORITY_CACHE_MODULO","IS_SAFARI","workers","Array","fill","undefined","map","Worker","URL","lastWorkerIndex","id","container","animationData","params","onLoad","document","createElement","canvas","getContext","initContainer","initConfig","initRenderer","isPlaying","isAnimating","isWaiting","play","stopFrameIndex","direction","doPlay","pause","approxFrameIndex","currentChunkIndex","getChunkIndex","chunks","chunk","i","goToAndPlay","frameIndex","Math","floor","reduceFactor","goToAndStop","playSegment","startFrameIndex","setSpeed","speed","destroy","isDestroyed","destroyRenderer","destroyContainer","parentNode","HTMLElement","Error","size","offsetWidth","parseInt","style","width","height","isLowPriority","quality","imgSize","round","max","DPR","appendChild","key","maxFps","sourceFps","fr","msPerFrame","cacheModulo","chunkSize","remove","workerIndex","cycleRestrict","name","onRendererInit","bind","framesCount","chunksCount","ceil","lastRenderAt","animate","isOnLoadFired","chunkIndex","requestChunk","cleanupPrevChunk","requestNextChunk","prevFrameIndex","frame","getFrame","imageData","ImageData","Uint8ClampedArray","ctx","putImageData","now","Date","currentSpeed","delta","min","expectedNextFrameIndex","noLoop","nextFrameIndex","indexInChunk","getFrameIndexInChunk","fromIndex","toIndex","onFrameLoad","prevChunkIndex","nextChunkIndex","arrayBuffer","index"],"sourceRoot":""}