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* Bundled by jsDelivr using Rollup v4.62.2 and esbuild v0.28.1.\n * Original file: /npm/@rails/activestorage@7.1.3-4/app/assets/javascripts/activestorage.esm.js\n *\n * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files\n */\n","var sparkMd5 = {\n  exports: {}\n};\n\n(function(module, exports) {\n  (function(factory) {\n    {\n      module.exports = factory();\n    }\n  })((function(undefined$1) {\n    var hex_chr = [ \"0\", \"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\", \"a\", \"b\", \"c\", \"d\", \"e\", \"f\" ];\n    function md5cycle(x, k) {\n      var a = x[0], b = x[1], c = x[2], d = x[3];\n      a += (b & c | ~b & d) + k[0] - 680876936 | 0;\n      a = (a << 7 | a >>> 25) + b | 0;\n      d += (a & b | ~a & c) + k[1] - 389564586 | 0;\n      d = (d << 12 | d >>> 20) + a | 0;\n      c += (d & a | ~d & b) + k[2] + 606105819 | 0;\n      c = (c << 17 | c >>> 15) + d | 0;\n      b += (c & d | ~c & a) + k[3] - 1044525330 | 0;\n      b = (b << 22 | b >>> 10) + c | 0;\n      a += (b & c | ~b & d) + k[4] - 176418897 | 0;\n      a = (a << 7 | a >>> 25) + b | 0;\n      d += (a & b | ~a & c) + k[5] + 1200080426 | 0;\n      d = (d << 12 | d >>> 20) + a | 0;\n      c += (d & a | ~d & b) + k[6] - 1473231341 | 0;\n      c = (c << 17 | c >>> 15) + d | 0;\n      b += (c & d | ~c & a) + k[7] - 45705983 | 0;\n      b = (b << 22 | b >>> 10) + c | 0;\n      a += (b & c | ~b & d) + k[8] + 1770035416 | 0;\n      a = (a << 7 | a >>> 25) + b | 0;\n      d += (a & b | ~a & c) + k[9] - 1958414417 | 0;\n      d = (d << 12 | d >>> 20) + a | 0;\n      c += (d & a | ~d & b) + k[10] - 42063 | 0;\n      c = (c << 17 | c >>> 15) + d | 0;\n      b += (c & d | ~c & a) + k[11] - 1990404162 | 0;\n      b = (b << 22 | b >>> 10) + c | 0;\n      a += (b & c | ~b & d) + k[12] + 1804603682 | 0;\n      a = (a << 7 | a >>> 25) + b | 0;\n      d += (a & b | ~a & c) + k[13] - 40341101 | 0;\n      d = (d << 12 | d >>> 20) + a | 0;\n      c += (d & a | ~d & b) + k[14] - 1502002290 | 0;\n      c = (c << 17 | c >>> 15) + d | 0;\n      b += (c & d | ~c & a) + k[15] + 1236535329 | 0;\n      b = (b << 22 | b >>> 10) + c | 0;\n      a += (b & d | c & ~d) + k[1] - 165796510 | 0;\n      a = (a << 5 | a >>> 27) + b | 0;\n      d += (a & c | b & ~c) + k[6] - 1069501632 | 0;\n      d = (d << 9 | d >>> 23) + a | 0;\n      c += (d & b | a & ~b) + k[11] + 643717713 | 0;\n      c = (c << 14 | c >>> 18) + d | 0;\n      b += (c & a | d & ~a) + k[0] - 373897302 | 0;\n      b = (b << 20 | b >>> 12) + c | 0;\n      a += (b & d | c & ~d) + k[5] - 701558691 | 0;\n      a = (a << 5 | a >>> 27) + b | 0;\n      d += (a & c | b & ~c) + k[10] + 38016083 | 0;\n      d = (d << 9 | d >>> 23) + a | 0;\n      c += (d & b | a & ~b) + k[15] - 660478335 | 0;\n      c = (c << 14 | c >>> 18) + d | 0;\n      b += (c & a | d & ~a) + k[4] - 405537848 | 0;\n      b = (b << 20 | b >>> 12) + c | 0;\n      a += (b & d | c & ~d) + k[9] + 568446438 | 0;\n      a = (a << 5 | a >>> 27) + b | 0;\n      d += (a & c | b & ~c) + k[14] - 1019803690 | 0;\n      d = (d << 9 | d >>> 23) + a | 0;\n      c += (d & b | a & ~b) + k[3] - 187363961 | 0;\n      c = (c << 14 | c >>> 18) + d | 0;\n      b += (c & a | d & ~a) + k[8] + 1163531501 | 0;\n      b = (b << 20 | b >>> 12) + c | 0;\n      a += (b & d | c & ~d) + k[13] - 1444681467 | 0;\n      a = (a << 5 | a >>> 27) + b | 0;\n      d += (a & c | b & ~c) + k[2] - 51403784 | 0;\n      d = (d << 9 | d >>> 23) + a | 0;\n      c += (d & b | a & ~b) + k[7] + 1735328473 | 0;\n      c = (c << 14 | c >>> 18) + d | 0;\n      b += (c & a | d & ~a) + k[12] - 1926607734 | 0;\n      b = (b << 20 | b >>> 12) + c | 0;\n      a += (b ^ c ^ d) + k[5] - 378558 | 0;\n      a = (a << 4 | a >>> 28) + b | 0;\n      d += (a ^ b ^ c) + k[8] - 2022574463 | 0;\n      d = (d << 11 | d >>> 21) + a | 0;\n      c += (d ^ a ^ b) + k[11] + 1839030562 | 0;\n      c = (c << 16 | c >>> 16) + d | 0;\n      b += (c ^ d ^ a) + k[14] - 35309556 | 0;\n      b = (b << 23 | b >>> 9) + c | 0;\n      a += (b ^ c ^ d) + k[1] - 1530992060 | 0;\n      a = (a << 4 | a >>> 28) + b | 0;\n      d += (a ^ b ^ c) + k[4] + 1272893353 | 0;\n      d = (d << 11 | d >>> 21) + a | 0;\n      c += (d ^ a ^ b) + k[7] - 155497632 | 0;\n      c = (c << 16 | c >>> 16) + d | 0;\n      b += (c ^ d ^ a) + k[10] - 1094730640 | 0;\n      b = (b << 23 | b >>> 9) + c | 0;\n      a += (b ^ c ^ d) + k[13] + 681279174 | 0;\n      a = (a << 4 | a >>> 28) + b | 0;\n      d += (a ^ b ^ c) + k[0] - 358537222 | 0;\n      d = (d << 11 | d >>> 21) + a | 0;\n      c += (d ^ a ^ b) + k[3] - 722521979 | 0;\n      c = (c << 16 | c >>> 16) + d | 0;\n      b += (c ^ d ^ a) + k[6] + 76029189 | 0;\n      b = (b << 23 | b >>> 9) + c | 0;\n      a += (b ^ c ^ d) + k[9] - 640364487 | 0;\n      a = (a << 4 | a >>> 28) + b | 0;\n      d += (a ^ b ^ c) + k[12] - 421815835 | 0;\n      d = (d << 11 | d >>> 21) + a | 0;\n      c += (d ^ a ^ b) + k[15] + 530742520 | 0;\n      c = (c << 16 | c >>> 16) + d | 0;\n      b += (c ^ d ^ a) + k[2] - 995338651 | 0;\n      b = (b << 23 | b >>> 9) + c | 0;\n      a += (c ^ (b | ~d)) + k[0] - 198630844 | 0;\n      a = (a << 6 | a >>> 26) + b | 0;\n      d += (b ^ (a | ~c)) + k[7] + 1126891415 | 0;\n      d = (d << 10 | d >>> 22) + a | 0;\n      c += (a ^ (d | ~b)) + k[14] - 1416354905 | 0;\n      c = (c << 15 | c >>> 17) + d | 0;\n      b += (d ^ (c | ~a)) + k[5] - 57434055 | 0;\n      b = (b << 21 | b >>> 11) + c | 0;\n      a += (c ^ (b | ~d)) + k[12] + 1700485571 | 0;\n      a = (a << 6 | a >>> 26) + b | 0;\n      d += (b ^ (a | ~c)) + k[3] - 1894986606 | 0;\n      d = (d << 10 | d >>> 22) + a | 0;\n      c += (a ^ (d | ~b)) + k[10] - 1051523 | 0;\n      c = (c << 15 | c >>> 17) + d | 0;\n      b += (d ^ (c | ~a)) + k[1] - 2054922799 | 0;\n      b = (b << 21 | b >>> 11) + c | 0;\n      a += (c ^ (b | ~d)) + k[8] + 1873313359 | 0;\n      a = (a << 6 | a >>> 26) + b | 0;\n      d += (b ^ (a | ~c)) + k[15] - 30611744 | 0;\n      d = (d << 10 | d >>> 22) + a | 0;\n      c += (a ^ (d | ~b)) + k[6] - 1560198380 | 0;\n      c = (c << 15 | c >>> 17) + d | 0;\n      b += (d ^ (c | ~a)) + k[13] + 1309151649 | 0;\n      b = (b << 21 | b >>> 11) + c | 0;\n      a += (c ^ (b | ~d)) + k[4] - 145523070 | 0;\n      a = (a << 6 | a >>> 26) + b | 0;\n      d += (b ^ (a | ~c)) + k[11] - 1120210379 | 0;\n      d = (d << 10 | d >>> 22) + a | 0;\n      c += (a ^ (d | ~b)) + k[2] + 718787259 | 0;\n      c = (c << 15 | c >>> 17) + d | 0;\n      b += (d ^ (c | ~a)) + k[9] - 343485551 | 0;\n      b = (b << 21 | b >>> 11) + c | 0;\n      x[0] = a + x[0] | 0;\n      x[1] = b + x[1] | 0;\n      x[2] = c + x[2] | 0;\n      x[3] = d + x[3] | 0;\n    }\n    function md5blk(s) {\n      var md5blks = [], i;\n      for (i = 0; i < 64; i += 4) {\n        md5blks[i >> 2] = s.charCodeAt(i) + (s.charCodeAt(i + 1) << 8) + (s.charCodeAt(i + 2) << 16) + (s.charCodeAt(i + 3) << 24);\n      }\n      return md5blks;\n    }\n    function md5blk_array(a) {\n      var md5blks = [], i;\n      for (i = 0; i < 64; i += 4) {\n        md5blks[i >> 2] = a[i] + (a[i + 1] << 8) + (a[i + 2] << 16) + (a[i + 3] << 24);\n      }\n      return md5blks;\n    }\n    function md51(s) {\n      var n = s.length, state = [ 1732584193, -271733879, -1732584194, 271733878 ], i, length, tail, tmp, lo, hi;\n      for (i = 64; i <= n; i += 64) {\n        md5cycle(state, md5blk(s.substring(i - 64, i)));\n      }\n      s = s.substring(i - 64);\n      length = s.length;\n      tail = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];\n      for (i = 0; i < length; i += 1) {\n        tail[i >> 2] |= s.charCodeAt(i) << (i % 4 << 3);\n      }\n      tail[i >> 2] |= 128 << (i % 4 << 3);\n      if (i > 55) {\n        md5cycle(state, tail);\n        for (i = 0; i < 16; i += 1) {\n          tail[i] = 0;\n        }\n      }\n      tmp = n * 8;\n      tmp = tmp.toString(16).match(/(.*?)(.{0,8})$/);\n      lo = parseInt(tmp[2], 16);\n      hi = parseInt(tmp[1], 16) || 0;\n      tail[14] = lo;\n      tail[15] = hi;\n      md5cycle(state, tail);\n      return state;\n    }\n    function md51_array(a) {\n      var n = a.length, state = [ 1732584193, -271733879, -1732584194, 271733878 ], i, length, tail, tmp, lo, hi;\n      for (i = 64; i <= n; i += 64) {\n        md5cycle(state, md5blk_array(a.subarray(i - 64, i)));\n      }\n      a = i - 64 < n ? a.subarray(i - 64) : new Uint8Array(0);\n      length = a.length;\n      tail = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];\n      for (i = 0; i < length; i += 1) {\n        tail[i >> 2] |= a[i] << (i % 4 << 3);\n      }\n      tail[i >> 2] |= 128 << (i % 4 << 3);\n      if (i > 55) {\n        md5cycle(state, tail);\n        for (i = 0; i < 16; i += 1) {\n          tail[i] = 0;\n        }\n      }\n      tmp = n * 8;\n      tmp = tmp.toString(16).match(/(.*?)(.{0,8})$/);\n      lo = parseInt(tmp[2], 16);\n      hi = parseInt(tmp[1], 16) || 0;\n      tail[14] = lo;\n      tail[15] = hi;\n      md5cycle(state, tail);\n      return state;\n    }\n    function rhex(n) {\n      var s = \"\", j;\n      for (j = 0; j < 4; j += 1) {\n        s += hex_chr[n >> j * 8 + 4 & 15] + hex_chr[n >> j * 8 & 15];\n      }\n      return s;\n    }\n    function hex(x) {\n      var i;\n      for (i = 0; i < x.length; i += 1) {\n        x[i] = rhex(x[i]);\n      }\n      return x.join(\"\");\n    }\n    if (hex(md51(\"hello\")) !== \"5d41402abc4b2a76b9719d911017c592\") ;\n    if (typeof ArrayBuffer !== \"undefined\" && !ArrayBuffer.prototype.slice) {\n      (function() {\n        function clamp(val, length) {\n          val = val | 0 || 0;\n          if (val < 0) {\n            return Math.max(val + length, 0);\n          }\n          return Math.min(val, length);\n        }\n        ArrayBuffer.prototype.slice = function(from, to) {\n          var length = this.byteLength, begin = clamp(from, length), end = length, num, target, targetArray, sourceArray;\n          if (to !== undefined$1) {\n            end = clamp(to, length);\n          }\n          if (begin > end) {\n            return new ArrayBuffer(0);\n          }\n          num = end - begin;\n          target = new ArrayBuffer(num);\n          targetArray = new Uint8Array(target);\n          sourceArray = new Uint8Array(this, begin, num);\n          targetArray.set(sourceArray);\n          return target;\n        };\n      })();\n    }\n    function toUtf8(str) {\n      if (/[\\u0080-\\uFFFF]/.test(str)) {\n        str = unescape(encodeURIComponent(str));\n      }\n      return str;\n    }\n    function utf8Str2ArrayBuffer(str, returnUInt8Array) {\n      var length = str.length, buff = new ArrayBuffer(length), arr = new Uint8Array(buff), i;\n      for (i = 0; i < length; i += 1) {\n        arr[i] = str.charCodeAt(i);\n      }\n      return returnUInt8Array ? arr : buff;\n    }\n    function arrayBuffer2Utf8Str(buff) {\n      return String.fromCharCode.apply(null, new Uint8Array(buff));\n    }\n    function concatenateArrayBuffers(first, second, returnUInt8Array) {\n      var result = new Uint8Array(first.byteLength + second.byteLength);\n      result.set(new Uint8Array(first));\n      result.set(new Uint8Array(second), first.byteLength);\n      return returnUInt8Array ? result : result.buffer;\n    }\n    function hexToBinaryString(hex) {\n      var bytes = [], length = hex.length, x;\n      for (x = 0; x < length - 1; x += 2) {\n        bytes.push(parseInt(hex.substr(x, 2), 16));\n      }\n      return String.fromCharCode.apply(String, bytes);\n    }\n    function SparkMD5() {\n      this.reset();\n    }\n    SparkMD5.prototype.append = function(str) {\n      this.appendBinary(toUtf8(str));\n      return this;\n    };\n    SparkMD5.prototype.appendBinary = function(contents) {\n      this._buff += contents;\n      this._length += contents.length;\n      var length = this._buff.length, i;\n      for (i = 64; i <= length; i += 64) {\n        md5cycle(this._hash, md5blk(this._buff.substring(i - 64, i)));\n      }\n      this._buff = this._buff.substring(i - 64);\n      return this;\n    };\n    SparkMD5.prototype.end = function(raw) {\n      var buff = this._buff, length = buff.length, i, tail = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], ret;\n      for (i = 0; i < length; i += 1) {\n        tail[i >> 2] |= buff.charCodeAt(i) << (i % 4 << 3);\n      }\n      this._finish(tail, length);\n      ret = hex(this._hash);\n      if (raw) {\n        ret = hexToBinaryString(ret);\n      }\n      this.reset();\n      return ret;\n    };\n    SparkMD5.prototype.reset = function() {\n      this._buff = \"\";\n      this._length = 0;\n      this._hash = [ 1732584193, -271733879, -1732584194, 271733878 ];\n      return this;\n    };\n    SparkMD5.prototype.getState = function() {\n      return {\n        buff: this._buff,\n        length: this._length,\n        hash: this._hash.slice()\n      };\n    };\n    SparkMD5.prototype.setState = function(state) {\n      this._buff = state.buff;\n      this._length = state.length;\n      this._hash = state.hash;\n      return this;\n    };\n    SparkMD5.prototype.destroy = function() {\n      delete this._hash;\n      delete this._buff;\n      delete this._length;\n    };\n    SparkMD5.prototype._finish = function(tail, length) {\n      var i = length, tmp, lo, hi;\n      tail[i >> 2] |= 128 << (i % 4 << 3);\n      if (i > 55) {\n        md5cycle(this._hash, tail);\n        for (i = 0; i < 16; i += 1) {\n          tail[i] = 0;\n        }\n      }\n      tmp = this._length * 8;\n      tmp = tmp.toString(16).match(/(.*?)(.{0,8})$/);\n      lo = parseInt(tmp[2], 16);\n      hi = parseInt(tmp[1], 16) || 0;\n      tail[14] = lo;\n      tail[15] = hi;\n      md5cycle(this._hash, tail);\n    };\n    SparkMD5.hash = function(str, raw) {\n      return SparkMD5.hashBinary(toUtf8(str), raw);\n    };\n    SparkMD5.hashBinary = function(content, raw) {\n      var hash = md51(content), ret = hex(hash);\n      return raw ? hexToBinaryString(ret) : ret;\n    };\n    SparkMD5.ArrayBuffer = function() {\n      this.reset();\n    };\n    SparkMD5.ArrayBuffer.prototype.append = function(arr) {\n      var buff = concatenateArrayBuffers(this._buff.buffer, arr, true), length = buff.length, i;\n      this._length += arr.byteLength;\n      for (i = 64; i <= length; i += 64) {\n        md5cycle(this._hash, md5blk_array(buff.subarray(i - 64, i)));\n      }\n      this._buff = i - 64 < length ? new Uint8Array(buff.buffer.slice(i - 64)) : new Uint8Array(0);\n      return this;\n    };\n    SparkMD5.ArrayBuffer.prototype.end = function(raw) {\n      var buff = this._buff, length = buff.length, tail = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], i, ret;\n      for (i = 0; i < length; i += 1) {\n        tail[i >> 2] |= buff[i] << (i % 4 << 3);\n      }\n      this._finish(tail, length);\n      ret = hex(this._hash);\n      if (raw) {\n        ret = hexToBinaryString(ret);\n      }\n      this.reset();\n      return ret;\n    };\n    SparkMD5.ArrayBuffer.prototype.reset = function() {\n      this._buff = new Uint8Array(0);\n      this._length = 0;\n      this._hash = [ 1732584193, -271733879, -1732584194, 271733878 ];\n      return this;\n    };\n    SparkMD5.ArrayBuffer.prototype.getState = function() {\n      var state = SparkMD5.prototype.getState.call(this);\n      state.buff = arrayBuffer2Utf8Str(state.buff);\n      return state;\n    };\n    SparkMD5.ArrayBuffer.prototype.setState = function(state) {\n      state.buff = utf8Str2ArrayBuffer(state.buff, true);\n      return SparkMD5.prototype.setState.call(this, state);\n    };\n    SparkMD5.ArrayBuffer.prototype.destroy = SparkMD5.prototype.destroy;\n    SparkMD5.ArrayBuffer.prototype._finish = SparkMD5.prototype._finish;\n    SparkMD5.ArrayBuffer.hash = function(arr, raw) {\n      var hash = md51_array(new Uint8Array(arr)), ret = hex(hash);\n      return raw ? hexToBinaryString(ret) : ret;\n    };\n    return SparkMD5;\n  }));\n})(sparkMd5);\n\nvar SparkMD5 = sparkMd5.exports;\n\nconst fileSlice = File.prototype.slice || File.prototype.mozSlice || File.prototype.webkitSlice;\n\nclass FileChecksum {\n  static create(file, callback) {\n    const instance = new FileChecksum(file);\n    instance.create(callback);\n  }\n  constructor(file) {\n    this.file = file;\n    this.chunkSize = 2097152;\n    this.chunkCount = Math.ceil(this.file.size / this.chunkSize);\n    this.chunkIndex = 0;\n  }\n  create(callback) {\n    this.callback = callback;\n    this.md5Buffer = new SparkMD5.ArrayBuffer;\n    this.fileReader = new FileReader;\n    this.fileReader.addEventListener(\"load\", (event => this.fileReaderDidLoad(event)));\n    this.fileReader.addEventListener(\"error\", (event => this.fileReaderDidError(event)));\n    this.readNextChunk();\n  }\n  fileReaderDidLoad(event) {\n    this.md5Buffer.append(event.target.result);\n    if (!this.readNextChunk()) {\n      const binaryDigest = this.md5Buffer.end(true);\n      const base64digest = btoa(binaryDigest);\n      this.callback(null, base64digest);\n    }\n  }\n  fileReaderDidError(event) {\n    this.callback(`Error reading ${this.file.name}`);\n  }\n  readNextChunk() {\n    if (this.chunkIndex < this.chunkCount || this.chunkIndex == 0 && this.chunkCount == 0) {\n      const start = this.chunkIndex * this.chunkSize;\n      const end = Math.min(start + this.chunkSize, this.file.size);\n      const bytes = fileSlice.call(this.file, start, end);\n      this.fileReader.readAsArrayBuffer(bytes);\n      this.chunkIndex++;\n      return true;\n    } else {\n      return false;\n    }\n  }\n}\n\nfunction getMetaValue(name) {\n  const element = findElement(document.head, `meta[name=\"${name}\"]`);\n  if (element) {\n    return element.getAttribute(\"content\");\n  }\n}\n\nfunction findElements(root, selector) {\n  if (typeof root == \"string\") {\n    selector = root;\n    root = document;\n  }\n  const elements = root.querySelectorAll(selector);\n  return toArray(elements);\n}\n\nfunction findElement(root, selector) {\n  if (typeof root == \"string\") {\n    selector = root;\n    root = document;\n  }\n  return root.querySelector(selector);\n}\n\nfunction dispatchEvent(element, type, eventInit = {}) {\n  const {disabled: disabled} = element;\n  const {bubbles: bubbles, cancelable: cancelable, detail: detail} = eventInit;\n  const event = document.createEvent(\"Event\");\n  event.initEvent(type, bubbles || true, cancelable || true);\n  event.detail = detail || {};\n  try {\n    element.disabled = false;\n    element.dispatchEvent(event);\n  } finally {\n    element.disabled = disabled;\n  }\n  return event;\n}\n\nfunction toArray(value) {\n  if (Array.isArray(value)) {\n    return value;\n  } else if (Array.from) {\n    return Array.from(value);\n  } else {\n    return [].slice.call(value);\n  }\n}\n\nclass BlobRecord {\n  constructor(file, checksum, url, customHeaders = {}) {\n    this.file = file;\n    this.attributes = {\n      filename: file.name,\n      content_type: file.type || \"application/octet-stream\",\n      byte_size: file.size,\n      checksum: checksum\n    };\n    this.xhr = new XMLHttpRequest;\n    this.xhr.open(\"POST\", url, true);\n    this.xhr.responseType = \"json\";\n    this.xhr.setRequestHeader(\"Content-Type\", \"application/json\");\n    this.xhr.setRequestHeader(\"Accept\", \"application/json\");\n    this.xhr.setRequestHeader(\"X-Requested-With\", \"XMLHttpRequest\");\n    Object.keys(customHeaders).forEach((headerKey => {\n      this.xhr.setRequestHeader(headerKey, customHeaders[headerKey]);\n    }));\n    const csrfToken = getMetaValue(\"csrf-token\");\n    if (csrfToken != undefined) {\n      this.xhr.setRequestHeader(\"X-CSRF-Token\", csrfToken);\n    }\n    this.xhr.addEventListener(\"load\", (event => this.requestDidLoad(event)));\n    this.xhr.addEventListener(\"error\", (event => this.requestDidError(event)));\n  }\n  get status() {\n    return this.xhr.status;\n  }\n  get response() {\n    const {responseType: responseType, response: response} = this.xhr;\n    if (responseType == \"json\") {\n      return response;\n    } else {\n      return JSON.parse(response);\n    }\n  }\n  create(callback) {\n    this.callback = callback;\n    this.xhr.send(JSON.stringify({\n      blob: this.attributes\n    }));\n  }\n  requestDidLoad(event) {\n    if (this.status >= 200 && this.status < 300) {\n      const {response: response} = this;\n      const {direct_upload: direct_upload} = response;\n      delete response.direct_upload;\n      this.attributes = response;\n      this.directUploadData = direct_upload;\n      this.callback(null, this.toJSON());\n    } else {\n      this.requestDidError(event);\n    }\n  }\n  requestDidError(event) {\n    this.callback(`Error creating Blob for \"${this.file.name}\". Status: ${this.status}`);\n  }\n  toJSON() {\n    const result = {};\n    for (const key in this.attributes) {\n      result[key] = this.attributes[key];\n    }\n    return result;\n  }\n}\n\nclass BlobUpload {\n  constructor(blob) {\n    this.blob = blob;\n    this.file = blob.file;\n    const {url: url, headers: headers} = blob.directUploadData;\n    this.xhr = new XMLHttpRequest;\n    this.xhr.open(\"PUT\", url, true);\n    this.xhr.responseType = \"text\";\n    for (const key in headers) {\n      this.xhr.setRequestHeader(key, headers[key]);\n    }\n    this.xhr.addEventListener(\"load\", (event => this.requestDidLoad(event)));\n    this.xhr.addEventListener(\"error\", (event => this.requestDidError(event)));\n  }\n  create(callback) {\n    this.callback = callback;\n    this.xhr.send(this.file.slice());\n  }\n  requestDidLoad(event) {\n    const {status: status, response: response} = this.xhr;\n    if (status >= 200 && status < 300) {\n      this.callback(null, response);\n    } else {\n      this.requestDidError(event);\n    }\n  }\n  requestDidError(event) {\n    this.callback(`Error storing \"${this.file.name}\". Status: ${this.xhr.status}`);\n  }\n}\n\nlet id = 0;\n\nclass DirectUpload {\n  constructor(file, url, delegate, customHeaders = {}) {\n    this.id = ++id;\n    this.file = file;\n    this.url = url;\n    this.delegate = delegate;\n    this.customHeaders = customHeaders;\n  }\n  create(callback) {\n    FileChecksum.create(this.file, ((error, checksum) => {\n      if (error) {\n        callback(error);\n        return;\n      }\n      const blob = new BlobRecord(this.file, checksum, this.url, this.customHeaders);\n      notify(this.delegate, \"directUploadWillCreateBlobWithXHR\", blob.xhr);\n      blob.create((error => {\n        if (error) {\n          callback(error);\n        } else {\n          const upload = new BlobUpload(blob);\n          notify(this.delegate, \"directUploadWillStoreFileWithXHR\", upload.xhr);\n          upload.create((error => {\n            if (error) {\n              callback(error);\n            } else {\n              callback(null, blob.toJSON());\n            }\n          }));\n        }\n      }));\n    }));\n  }\n}\n\nfunction notify(object, methodName, ...messages) {\n  if (object && typeof object[methodName] == \"function\") {\n    return object[methodName](...messages);\n  }\n}\n\nclass DirectUploadController {\n  constructor(input, file) {\n    this.input = input;\n    this.file = file;\n    this.directUpload = new DirectUpload(this.file, this.url, this);\n    this.dispatch(\"initialize\");\n  }\n  start(callback) {\n    const hiddenInput = document.createElement(\"input\");\n    hiddenInput.type = \"hidden\";\n    hiddenInput.name = this.input.name;\n    this.input.insertAdjacentElement(\"beforebegin\", hiddenInput);\n    this.dispatch(\"start\");\n    this.directUpload.create(((error, attributes) => {\n      if (error) {\n        hiddenInput.parentNode.removeChild(hiddenInput);\n        this.dispatchError(error);\n      } else {\n        hiddenInput.value = attributes.signed_id;\n      }\n      this.dispatch(\"end\");\n      callback(error);\n    }));\n  }\n  uploadRequestDidProgress(event) {\n    const progress = event.loaded / event.total * 100;\n    if (progress) {\n      this.dispatch(\"progress\", {\n        progress: progress\n      });\n    }\n  }\n  get url() {\n    return this.input.getAttribute(\"data-direct-upload-url\");\n  }\n  dispatch(name, detail = {}) {\n    detail.file = this.file;\n    detail.id = this.directUpload.id;\n    return dispatchEvent(this.input, `direct-upload:${name}`, {\n      detail: detail\n    });\n  }\n  dispatchError(error) {\n    const event = this.dispatch(\"error\", {\n      error: error\n    });\n    if (!event.defaultPrevented) {\n      alert(error);\n    }\n  }\n  directUploadWillCreateBlobWithXHR(xhr) {\n    this.dispatch(\"before-blob-request\", {\n      xhr: xhr\n    });\n  }\n  directUploadWillStoreFileWithXHR(xhr) {\n    this.dispatch(\"before-storage-request\", {\n      xhr: xhr\n    });\n    xhr.upload.addEventListener(\"progress\", (event => this.uploadRequestDidProgress(event)));\n  }\n}\n\nconst inputSelector = \"input[type=file][data-direct-upload-url]:not([disabled])\";\n\nclass DirectUploadsController {\n  constructor(form) {\n    this.form = form;\n    this.inputs = findElements(form, inputSelector).filter((input => input.files.length));\n  }\n  start(callback) {\n    const controllers = this.createDirectUploadControllers();\n    const startNextController = () => {\n      const controller = controllers.shift();\n      if (controller) {\n        controller.start((error => {\n          if (error) {\n            callback(error);\n            this.dispatch(\"end\");\n          } else {\n            startNextController();\n          }\n        }));\n      } else {\n        callback();\n        this.dispatch(\"end\");\n      }\n    };\n    this.dispatch(\"start\");\n    startNextController();\n  }\n  createDirectUploadControllers() {\n    const controllers = [];\n    this.inputs.forEach((input => {\n      toArray(input.files).forEach((file => {\n        const controller = new DirectUploadController(input, file);\n        controllers.push(controller);\n      }));\n    }));\n    return controllers;\n  }\n  dispatch(name, detail = {}) {\n    return dispatchEvent(this.form, `direct-uploads:${name}`, {\n      detail: detail\n    });\n  }\n}\n\nconst processingAttribute = \"data-direct-uploads-processing\";\n\nconst submitButtonsByForm = new WeakMap;\n\nlet started = false;\n\nfunction start() {\n  if (!started) {\n    started = true;\n    document.addEventListener(\"click\", didClick, true);\n    document.addEventListener(\"submit\", didSubmitForm, true);\n    document.addEventListener(\"ajax:before\", didSubmitRemoteElement);\n  }\n}\n\nfunction didClick(event) {\n  const button = event.target.closest(\"button, input\");\n  if (button && button.type === \"submit\" && button.form) {\n    submitButtonsByForm.set(button.form, button);\n  }\n}\n\nfunction didSubmitForm(event) {\n  handleFormSubmissionEvent(event);\n}\n\nfunction didSubmitRemoteElement(event) {\n  if (event.target.tagName == \"FORM\") {\n    handleFormSubmissionEvent(event);\n  }\n}\n\nfunction handleFormSubmissionEvent(event) {\n  const form = event.target;\n  if (form.hasAttribute(processingAttribute)) {\n    event.preventDefault();\n    return;\n  }\n  const controller = new DirectUploadsController(form);\n  const {inputs: inputs} = controller;\n  if (inputs.length) {\n    event.preventDefault();\n    form.setAttribute(processingAttribute, \"\");\n    inputs.forEach(disable);\n    controller.start((error => {\n      form.removeAttribute(processingAttribute);\n      if (error) {\n        inputs.forEach(enable);\n      } else {\n        submitForm(form);\n      }\n    }));\n  }\n}\n\nfunction submitForm(form) {\n  let button = submitButtonsByForm.get(form) || findElement(form, \"input[type=submit], button[type=submit]\");\n  if (button) {\n    const {disabled: disabled} = button;\n    button.disabled = false;\n    button.focus();\n    button.click();\n    button.disabled = disabled;\n  } else {\n    button = document.createElement(\"input\");\n    button.type = \"submit\";\n    button.style.display = \"none\";\n    form.appendChild(button);\n    button.click();\n    form.removeChild(button);\n  }\n  submitButtonsByForm.delete(form);\n}\n\nfunction disable(input) {\n  input.disabled = true;\n}\n\nfunction enable(input) {\n  input.disabled = false;\n}\n\nfunction autostart() {\n  if (window.ActiveStorage) {\n    start();\n  }\n}\n\nsetTimeout(autostart, 1);\n\nexport { DirectUpload, DirectUploadController, DirectUploadsController, start };\n"]}