ng2-pdfjs-viewer/pdfjs/build/pdf.worker.js

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/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2019 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * Javascript code in this page
 */

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define("pdfjs-dist/build/pdf.worker", [], factory);
	else if(typeof exports === 'object')
		exports["pdfjs-dist/build/pdf.worker"] = factory();
	else
		root["pdfjs-dist/build/pdf.worker"] = root.pdfjsWorker = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __w_pdfjs_require__(moduleId) {
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/******/ 			return installedModules[moduleId].exports;
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/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
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/******/ 	__w_pdfjs_require__.m = modules;
/******/
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/******/ 	__w_pdfjs_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__w_pdfjs_require__.d = function(exports, name, getter) {
/******/ 		if(!__w_pdfjs_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
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/******/ 	__w_pdfjs_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__w_pdfjs_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __w_pdfjs_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__w_pdfjs_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __w_pdfjs_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__w_pdfjs_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__w_pdfjs_require__.d(getter, 'a', getter);
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/* 0 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var pdfjsVersion = '2.2.171';
var pdfjsBuild = 'c8c937c2';

var pdfjsCoreWorker = __w_pdfjs_require__(1);

exports.WorkerMessageHandler = pdfjsCoreWorker.WorkerMessageHandler;

/***/ }),
/* 1 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.WorkerMessageHandler = exports.WorkerTask = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(2));

var _util = __w_pdfjs_require__(5);

var _pdf_manager = __w_pdfjs_require__(151);

var _is_node = _interopRequireDefault(__w_pdfjs_require__(8));

var _message_handler = __w_pdfjs_require__(191);

var _primitives = __w_pdfjs_require__(156);

var _core_utils = __w_pdfjs_require__(153);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

var WorkerTask = function WorkerTaskClosure() {
  function WorkerTask(name) {
    this.name = name;
    this.terminated = false;
    this._capability = (0, _util.createPromiseCapability)();
  }

  WorkerTask.prototype = {
    get finished() {
      return this._capability.promise;
    },

    finish: function finish() {
      this._capability.resolve();
    },
    terminate: function terminate() {
      this.terminated = true;
    },
    ensureNotTerminated: function ensureNotTerminated() {
      if (this.terminated) {
        throw new Error('Worker task was terminated');
      }
    }
  };
  return WorkerTask;
}();

exports.WorkerTask = WorkerTask;

var PDFWorkerStream = function PDFWorkerStreamClosure() {
  function PDFWorkerStream(msgHandler) {
    this._msgHandler = msgHandler;
    this._contentLength = null;
    this._fullRequestReader = null;
    this._rangeRequestReaders = [];
  }

  PDFWorkerStream.prototype = {
    getFullReader: function getFullReader() {
      (0, _util.assert)(!this._fullRequestReader);
      this._fullRequestReader = new PDFWorkerStreamReader(this._msgHandler);
      return this._fullRequestReader;
    },
    getRangeReader: function getRangeReader(begin, end) {
      var reader = new PDFWorkerStreamRangeReader(begin, end, this._msgHandler);

      this._rangeRequestReaders.push(reader);

      return reader;
    },
    cancelAllRequests: function cancelAllRequests(reason) {
      if (this._fullRequestReader) {
        this._fullRequestReader.cancel(reason);
      }

      var readers = this._rangeRequestReaders.slice(0);

      readers.forEach(function (reader) {
        reader.cancel(reason);
      });
    }
  };

  function PDFWorkerStreamReader(msgHandler) {
    var _this = this;

    this._msgHandler = msgHandler;
    this._contentLength = null;
    this._isRangeSupported = false;
    this._isStreamingSupported = false;

    var readableStream = this._msgHandler.sendWithStream('GetReader');

    this._reader = readableStream.getReader();
    this._headersReady = this._msgHandler.sendWithPromise('ReaderHeadersReady').then(function (data) {
      _this._isStreamingSupported = data.isStreamingSupported;
      _this._isRangeSupported = data.isRangeSupported;
      _this._contentLength = data.contentLength;
    });
  }

  PDFWorkerStreamReader.prototype = {
    get headersReady() {
      return this._headersReady;
    },

    get contentLength() {
      return this._contentLength;
    },

    get isStreamingSupported() {
      return this._isStreamingSupported;
    },

    get isRangeSupported() {
      return this._isRangeSupported;
    },

    read: function read() {
      return this._reader.read().then(function (_ref) {
        var value = _ref.value,
            done = _ref.done;

        if (done) {
          return {
            value: undefined,
            done: true
          };
        }

        return {
          value: value.buffer,
          done: false
        };
      });
    },
    cancel: function cancel(reason) {
      this._reader.cancel(reason);
    }
  };

  function PDFWorkerStreamRangeReader(begin, end, msgHandler) {
    this._msgHandler = msgHandler;
    this.onProgress = null;

    var readableStream = this._msgHandler.sendWithStream('GetRangeReader', {
      begin: begin,
      end: end
    });

    this._reader = readableStream.getReader();
  }

  PDFWorkerStreamRangeReader.prototype = {
    get isStreamingSupported() {
      return false;
    },

    read: function read() {
      return this._reader.read().then(function (_ref2) {
        var value = _ref2.value,
            done = _ref2.done;

        if (done) {
          return {
            value: undefined,
            done: true
          };
        }

        return {
          value: value.buffer,
          done: false
        };
      });
    },
    cancel: function cancel(reason) {
      this._reader.cancel(reason);
    }
  };
  return PDFWorkerStream;
}();

var WorkerMessageHandler = {
  setup: function setup(handler, port) {
    var testMessageProcessed = false;
    handler.on('test', function wphSetupTest(data) {
      if (testMessageProcessed) {
        return;
      }

      testMessageProcessed = true;

      if (!(data instanceof Uint8Array)) {
        handler.send('test', false);
        return;
      }

      var supportTransfers = data[0] === 255;
      handler.postMessageTransfers = supportTransfers;
      var xhr = new XMLHttpRequest();
      var responseExists = 'response' in xhr;

      try {
        xhr.responseType;
      } catch (e) {
        responseExists = false;
      }

      if (!responseExists) {
        handler.send('test', false);
        return;
      }

      handler.send('test', {
        supportTypedArray: true,
        supportTransfers: supportTransfers
      });
    });
    handler.on('configure', function wphConfigure(data) {
      (0, _util.setVerbosityLevel)(data.verbosity);
    });
    handler.on('GetDocRequest', function wphSetupDoc(data) {
      return WorkerMessageHandler.createDocumentHandler(data, port);
    });
  },
  createDocumentHandler: function createDocumentHandler(docParams, port) {
    var pdfManager;
    var terminated = false;
    var cancelXHRs = null;
    var WorkerTasks = [];
    var verbosity = (0, _util.getVerbosityLevel)();
    var apiVersion = docParams.apiVersion;
    var workerVersion = '2.2.171';

    if (apiVersion !== workerVersion) {
      throw new Error("The API version \"".concat(apiVersion, "\" does not match ") + "the Worker version \"".concat(workerVersion, "\"."));
    }

    var docId = docParams.docId;
    var docBaseUrl = docParams.docBaseUrl;
    var workerHandlerName = docParams.docId + '_worker';
    var handler = new _message_handler.MessageHandler(workerHandlerName, docId, port);
    handler.postMessageTransfers = docParams.postMessageTransfers;

    function ensureNotTerminated() {
      if (terminated) {
        throw new Error('Worker was terminated');
      }
    }

    function startWorkerTask(task) {
      WorkerTasks.push(task);
    }

    function finishWorkerTask(task) {
      task.finish();
      var i = WorkerTasks.indexOf(task);
      WorkerTasks.splice(i, 1);
    }

    function loadDocument(_x) {
      return _loadDocument.apply(this, arguments);
    }

    function _loadDocument() {
      _loadDocument = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee(recoveryMode) {
        var _ref6, _ref7, numPages, fingerprint;

        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _context.next = 2;
                return pdfManager.ensureDoc('checkHeader');

              case 2:
                _context.next = 4;
                return pdfManager.ensureDoc('parseStartXRef');

              case 4:
                _context.next = 6;
                return pdfManager.ensureDoc('parse', [recoveryMode]);

              case 6:
                if (recoveryMode) {
                  _context.next = 9;
                  break;
                }

                _context.next = 9;
                return pdfManager.ensureDoc('checkFirstPage');

              case 9:
                _context.next = 11;
                return Promise.all([pdfManager.ensureDoc('numPages'), pdfManager.ensureDoc('fingerprint')]);

              case 11:
                _ref6 = _context.sent;
                _ref7 = _slicedToArray(_ref6, 2);
                numPages = _ref7[0];
                fingerprint = _ref7[1];
                return _context.abrupt("return", {
                  numPages: numPages,
                  fingerprint: fingerprint
                });

              case 16:
              case "end":
                return _context.stop();
            }
          }
        }, _callee);
      }));
      return _loadDocument.apply(this, arguments);
    }

    function getPdfManager(data, evaluatorOptions) {
      var pdfManagerCapability = (0, _util.createPromiseCapability)();
      var pdfManager;
      var source = data.source;

      if (source.data) {
        try {
          pdfManager = new _pdf_manager.LocalPdfManager(docId, source.data, source.password, evaluatorOptions, docBaseUrl);
          pdfManagerCapability.resolve(pdfManager);
        } catch (ex) {
          pdfManagerCapability.reject(ex);
        }

        return pdfManagerCapability.promise;
      }

      var pdfStream,
          cachedChunks = [];

      try {
        pdfStream = new PDFWorkerStream(handler);
      } catch (ex) {
        pdfManagerCapability.reject(ex);
        return pdfManagerCapability.promise;
      }

      var fullRequest = pdfStream.getFullReader();
      fullRequest.headersReady.then(function () {
        if (!fullRequest.isRangeSupported) {
          return;
        }

        var disableAutoFetch = source.disableAutoFetch || fullRequest.isStreamingSupported;
        pdfManager = new _pdf_manager.NetworkPdfManager(docId, pdfStream, {
          msgHandler: handler,
          password: source.password,
          length: fullRequest.contentLength,
          disableAutoFetch: disableAutoFetch,
          rangeChunkSize: source.rangeChunkSize
        }, evaluatorOptions, docBaseUrl);

        for (var i = 0; i < cachedChunks.length; i++) {
          pdfManager.sendProgressiveData(cachedChunks[i]);
        }

        cachedChunks = [];
        pdfManagerCapability.resolve(pdfManager);
        cancelXHRs = null;
      })["catch"](function (reason) {
        pdfManagerCapability.reject(reason);
        cancelXHRs = null;
      });
      var loaded = 0;

      var flushChunks = function flushChunks() {
        var pdfFile = (0, _util.arraysToBytes)(cachedChunks);

        if (source.length && pdfFile.length !== source.length) {
          (0, _util.warn)('reported HTTP length is different from actual');
        }

        try {
          pdfManager = new _pdf_manager.LocalPdfManager(docId, pdfFile, source.password, evaluatorOptions, docBaseUrl);
          pdfManagerCapability.resolve(pdfManager);
        } catch (ex) {
          pdfManagerCapability.reject(ex);
        }

        cachedChunks = [];
      };

      var readPromise = new Promise(function (resolve, reject) {
        var readChunk = function readChunk(chunk) {
          try {
            ensureNotTerminated();

            if (chunk.done) {
              if (!pdfManager) {
                flushChunks();
              }

              cancelXHRs = null;
              return;
            }

            var data = chunk.value;
            loaded += (0, _util.arrayByteLength)(data);

            if (!fullRequest.isStreamingSupported) {
              handler.send('DocProgress', {
                loaded: loaded,
                total: Math.max(loaded, fullRequest.contentLength || 0)
              });
            }

            if (pdfManager) {
              pdfManager.sendProgressiveData(data);
            } else {
              cachedChunks.push(data);
            }

            fullRequest.read().then(readChunk, reject);
          } catch (e) {
            reject(e);
          }
        };

        fullRequest.read().then(readChunk, reject);
      });
      readPromise["catch"](function (e) {
        pdfManagerCapability.reject(e);
        cancelXHRs = null;
      });

      cancelXHRs = function cancelXHRs() {
        pdfStream.cancelAllRequests('abort');
      };

      return pdfManagerCapability.promise;
    }

    function setupDoc(data) {
      function onSuccess(doc) {
        ensureNotTerminated();
        handler.send('GetDoc', {
          pdfInfo: doc
        });
      }

      function onFailure(e) {
        ensureNotTerminated();

        if (e instanceof _util.PasswordException) {
          var task = new WorkerTask('PasswordException: response ' + e.code);
          startWorkerTask(task);
          handler.sendWithPromise('PasswordRequest', e).then(function (data) {
            finishWorkerTask(task);
            pdfManager.updatePassword(data.password);
            pdfManagerReady();
          })["catch"](function (boundException) {
            finishWorkerTask(task);
            handler.send('PasswordException', boundException);
          }.bind(null, e));
        } else if (e instanceof _util.InvalidPDFException) {
          handler.send('InvalidPDF', e);
        } else if (e instanceof _util.MissingPDFException) {
          handler.send('MissingPDF', e);
        } else if (e instanceof _util.UnexpectedResponseException) {
          handler.send('UnexpectedResponse', e);
        } else {
          handler.send('UnknownError', new _util.UnknownErrorException(e.message, e.toString()));
        }
      }

      function pdfManagerReady() {
        ensureNotTerminated();
        loadDocument(false).then(onSuccess, function loadFailure(ex) {
          ensureNotTerminated();

          if (!(ex instanceof _core_utils.XRefParseException)) {
            onFailure(ex);
            return;
          }

          pdfManager.requestLoadedStream();
          pdfManager.onLoadedStream().then(function () {
            ensureNotTerminated();
            loadDocument(true).then(onSuccess, onFailure);
          });
        }, onFailure);
      }

      ensureNotTerminated();
      var evaluatorOptions = {
        forceDataSchema: data.disableCreateObjectURL,
        maxImageSize: data.maxImageSize,
        disableFontFace: data.disableFontFace,
        nativeImageDecoderSupport: data.nativeImageDecoderSupport,
        ignoreErrors: data.ignoreErrors,
        isEvalSupported: data.isEvalSupported
      };
      getPdfManager(data, evaluatorOptions).then(function (newPdfManager) {
        if (terminated) {
          newPdfManager.terminate();
          throw new Error('Worker was terminated');
        }

        pdfManager = newPdfManager;
        pdfManager.onLoadedStream().then(function (stream) {
          handler.send('DataLoaded', {
            length: stream.bytes.byteLength
          });
        });
      }).then(pdfManagerReady, onFailure);
    }

    handler.on('GetPage', function wphSetupGetPage(data) {
      return pdfManager.getPage(data.pageIndex).then(function (page) {
        return Promise.all([pdfManager.ensure(page, 'rotate'), pdfManager.ensure(page, 'ref'), pdfManager.ensure(page, 'userUnit'), pdfManager.ensure(page, 'view')]).then(function (_ref3) {
          var _ref4 = _slicedToArray(_ref3, 4),
              rotate = _ref4[0],
              ref = _ref4[1],
              userUnit = _ref4[2],
              view = _ref4[3];

          return {
            rotate: rotate,
            ref: ref,
            userUnit: userUnit,
            view: view
          };
        });
      });
    });
    handler.on('GetPageIndex', function wphSetupGetPageIndex(data) {
      var ref = new _primitives.Ref(data.ref.num, data.ref.gen);
      var catalog = pdfManager.pdfDocument.catalog;
      return catalog.getPageIndex(ref);
    });
    handler.on('GetDestinations', function wphSetupGetDestinations(data) {
      return pdfManager.ensureCatalog('destinations');
    });
    handler.on('GetDestination', function wphSetupGetDestination(data) {
      return pdfManager.ensureCatalog('getDestination', [data.id]);
    });
    handler.on('GetPageLabels', function wphSetupGetPageLabels(data) {
      return pdfManager.ensureCatalog('pageLabels');
    });
    handler.on('GetPageLayout', function wphSetupGetPageLayout(data) {
      return pdfManager.ensureCatalog('pageLayout');
    });
    handler.on('GetPageMode', function wphSetupGetPageMode(data) {
      return pdfManager.ensureCatalog('pageMode');
    });
    handler.on('GetViewerPreferences', function (data) {
      return pdfManager.ensureCatalog('viewerPreferences');
    });
    handler.on('GetOpenActionDestination', function (data) {
      return pdfManager.ensureCatalog('openActionDestination');
    });
    handler.on('GetAttachments', function wphSetupGetAttachments(data) {
      return pdfManager.ensureCatalog('attachments');
    });
    handler.on('GetJavaScript', function wphSetupGetJavaScript(data) {
      return pdfManager.ensureCatalog('javaScript');
    });
    handler.on('GetOutline', function wphSetupGetOutline(data) {
      return pdfManager.ensureCatalog('documentOutline');
    });
    handler.on('GetPermissions', function (data) {
      return pdfManager.ensureCatalog('permissions');
    });
    handler.on('GetMetadata', function wphSetupGetMetadata(data) {
      return Promise.all([pdfManager.ensureDoc('documentInfo'), pdfManager.ensureCatalog('metadata')]);
    });
    handler.on('GetData', function wphSetupGetData(data) {
      pdfManager.requestLoadedStream();
      return pdfManager.onLoadedStream().then(function (stream) {
        return stream.bytes;
      });
    });
    handler.on('GetStats', function wphSetupGetStats(data) {
      return pdfManager.pdfDocument.xref.stats;
    });
    handler.on('GetAnnotations', function (_ref5) {
      var pageIndex = _ref5.pageIndex,
          intent = _ref5.intent;
      return pdfManager.getPage(pageIndex).then(function (page) {
        return page.getAnnotationsData(intent);
      });
    });
    handler.on('RenderPageRequest', function wphSetupRenderPage(data) {
      var pageIndex = data.pageIndex;
      pdfManager.getPage(pageIndex).then(function (page) {
        var task = new WorkerTask('RenderPageRequest: page ' + pageIndex);
        startWorkerTask(task);
        var start = verbosity >= _util.VerbosityLevel.INFOS ? Date.now() : 0;
        page.getOperatorList({
          handler: handler,
          task: task,
          intent: data.intent,
          renderInteractiveForms: data.renderInteractiveForms
        }).then(function (operatorList) {
          finishWorkerTask(task);

          if (start) {
            (0, _util.info)("page=".concat(pageIndex + 1, " - getOperatorList: time=") + "".concat(Date.now() - start, "ms, len=").concat(operatorList.totalLength));
          }
        }, function (e) {
          finishWorkerTask(task);

          if (task.terminated) {
            return;
          }

          handler.send('UnsupportedFeature', {
            featureId: _util.UNSUPPORTED_FEATURES.unknown
          });
          var minimumStackMessage = 'worker.js: while trying to getPage() and getOperatorList()';
          var wrappedException;

          if (typeof e === 'string') {
            wrappedException = {
              message: e,
              stack: minimumStackMessage
            };
          } else if (_typeof(e) === 'object') {
            wrappedException = {
              message: e.message || e.toString(),
              stack: e.stack || minimumStackMessage
            };
          } else {
            wrappedException = {
              message: 'Unknown exception type: ' + _typeof(e),
              stack: minimumStackMessage
            };
          }

          handler.send('PageError', {
            pageIndex: pageIndex,
            error: wrappedException,
            intent: data.intent
          });
        });
      });
    }, this);
    handler.on('GetTextContent', function wphExtractText(data, sink) {
      var pageIndex = data.pageIndex;

      sink.onPull = function (desiredSize) {};

      sink.onCancel = function (reason) {};

      pdfManager.getPage(pageIndex).then(function (page) {
        var task = new WorkerTask('GetTextContent: page ' + pageIndex);
        startWorkerTask(task);
        var start = verbosity >= _util.VerbosityLevel.INFOS ? Date.now() : 0;
        page.extractTextContent({
          handler: handler,
          task: task,
          sink: sink,
          normalizeWhitespace: data.normalizeWhitespace,
          combineTextItems: data.combineTextItems
        }).then(function () {
          finishWorkerTask(task);

          if (start) {
            (0, _util.info)("page=".concat(pageIndex + 1, " - getTextContent: time=") + "".concat(Date.now() - start, "ms"));
          }

          sink.close();
        }, function (reason) {
          finishWorkerTask(task);

          if (task.terminated) {
            return;
          }

          sink.error(reason);
          throw reason;
        });
      });
    });
    handler.on('FontFallback', function (data) {
      return pdfManager.fontFallback(data.id, handler);
    });
    handler.on('Cleanup', function wphCleanup(data) {
      return pdfManager.cleanup();
    });
    handler.on('Terminate', function wphTerminate(data) {
      terminated = true;

      if (pdfManager) {
        pdfManager.terminate();
        pdfManager = null;
      }

      if (cancelXHRs) {
        cancelXHRs();
      }

      var waitOn = [];
      WorkerTasks.forEach(function (task) {
        waitOn.push(task.finished);
        task.terminate();
      });
      return Promise.all(waitOn).then(function () {
        handler.destroy();
        handler = null;
      });
    });
    handler.on('Ready', function wphReady(data) {
      setupDoc(docParams);
      docParams = null;
    });
    return workerHandlerName;
  },
  initializeFromPort: function initializeFromPort(port) {
    var handler = new _message_handler.MessageHandler('worker', 'main', port);
    WorkerMessageHandler.setup(handler, port);
    handler.send('ready', null);
  }
};
exports.WorkerMessageHandler = WorkerMessageHandler;

function isMessagePort(maybePort) {
  return typeof maybePort.postMessage === 'function' && 'onmessage' in maybePort;
}

if (typeof window === 'undefined' && !(0, _is_node["default"])() && typeof self !== 'undefined' && isMessagePort(self)) {
  WorkerMessageHandler.initializeFromPort(self);
}

/***/ }),
/* 2 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = __w_pdfjs_require__(3);

/***/ }),
/* 3 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(module) {

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var runtime = function (exports) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined;
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  function wrap(innerFn, outerFn, self, tryLocsList) {
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);
    generator._invoke = makeInvokeMethod(innerFn, self, context);
    return generator;
  }

  exports.wrap = wrap;

  function tryCatch(fn, obj, arg) {
    try {
      return {
        type: "normal",
        arg: fn.call(obj, arg)
      };
    } catch (err) {
      return {
        type: "throw",
        arg: err
      };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";
  var ContinueSentinel = {};

  function Generator() {}

  function GeneratorFunction() {}

  function GeneratorFunctionPrototype() {}

  var IteratorPrototype = {};

  IteratorPrototype[iteratorSymbol] = function () {
    return this;
  };

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

  if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
  GeneratorFunctionPrototype.constructor = GeneratorFunction;
  GeneratorFunctionPrototype[toStringTagSymbol] = GeneratorFunction.displayName = "GeneratorFunction";

  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function (method) {
      prototype[method] = function (arg) {
        return this._invoke(method, arg);
      };
    });
  }

  exports.isGeneratorFunction = function (genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor ? ctor === GeneratorFunction || (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
  };

  exports.mark = function (genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;

      if (!(toStringTagSymbol in genFun)) {
        genFun[toStringTagSymbol] = "GeneratorFunction";
      }
    }

    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  exports.awrap = function (arg) {
    return {
      __await: arg
    };
  };

  function AsyncIterator(generator) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);

      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;

        if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
          return Promise.resolve(value.__await).then(function (value) {
            invoke("next", value, resolve, reject);
          }, function (err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return Promise.resolve(value).then(function (unwrapped) {
          result.value = unwrapped;
          resolve(result);
        }, function (error) {
          return invoke("throw", error, resolve, reject);
        });
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new Promise(function (resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
    }

    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);

  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };

  exports.AsyncIterator = AsyncIterator;

  exports.async = function (innerFn, outerFn, self, tryLocsList) {
    var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList));
    return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
      return result.done ? result.value : iter.next();
    });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;
    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;

        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);

          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          context.sent = context._sent = context.arg;
        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);
        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;
        var record = tryCatch(innerFn, self, context);

        if (record.type === "normal") {
          state = context.done ? GenStateCompleted : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };
        } else if (record.type === "throw") {
          state = GenStateCompleted;
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];

    if (method === undefined) {
      context.delegate = null;

      if (context.method === "throw") {
        if (delegate.iterator["return"]) {
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError("The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (!info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      context[delegate.resultName] = info.value;
      context.next = delegate.nextLoc;

      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }
    } else {
      return info;
    }

    context.delegate = null;
    return ContinueSentinel;
  }

  defineIteratorMethods(Gp);
  Gp[toStringTagSymbol] = "Generator";

  Gp[iteratorSymbol] = function () {
    return this;
  };

  Gp.toString = function () {
    return "[object Generator]";
  };

  function pushTryEntry(locs) {
    var entry = {
      tryLoc: locs[0]
    };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    this.tryEntries = [{
      tryLoc: "root"
    }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  exports.keys = function (object) {
    var keys = [];

    for (var key in object) {
      keys.push(key);
    }

    keys.reverse();
    return function next() {
      while (keys.length) {
        var key = keys.pop();

        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];

      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1,
            next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;
          return next;
        };

        return next.next = next;
      }
    }

    return {
      next: doneResult
    };
  }

  exports.values = values;

  function doneResult() {
    return {
      value: undefined,
      done: true
    };
  }

  Context.prototype = {
    constructor: Context,
    reset: function reset(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;
      this.method = "next";
      this.arg = undefined;
      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },
    stop: function stop() {
      this.done = true;
      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;

      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },
    dispatchException: function dispatchException(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;

      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          context.method = "next";
          context.arg = undefined;
        }

        return !!caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }
          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }
          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }
          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },
    abrupt: function abrupt(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },
    complete: function complete(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" || record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },
    finish: function finish(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },
    "catch": function _catch(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;

          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }

          return thrown;
        }
      }

      throw new Error("illegal catch attempt");
    },
    delegateYield: function delegateYield(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };
  return exports;
}(( false ? undefined : _typeof(module)) === "object" ? module.exports : {});

try {
  regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
  Function("r", "regeneratorRuntime = r")(runtime);
}
/* WEBPACK VAR INJECTION */}.call(this, __w_pdfjs_require__(4)(module)))

/***/ }),
/* 4 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (module) {
  if (!module.webpackPolyfill) {
    module.deprecate = function () {};

    module.paths = [];
    if (!module.children) module.children = [];
    Object.defineProperty(module, "loaded", {
      enumerable: true,
      get: function get() {
        return module.l;
      }
    });
    Object.defineProperty(module, "id", {
      enumerable: true,
      get: function get() {
        return module.i;
      }
    });
    module.webpackPolyfill = 1;
  }

  return module;
};

/***/ }),
/* 5 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.arrayByteLength = arrayByteLength;
exports.arraysToBytes = arraysToBytes;
exports.assert = assert;
exports.bytesToString = bytesToString;
exports.createPromiseCapability = createPromiseCapability;
exports.getVerbosityLevel = getVerbosityLevel;
exports.info = info;
exports.isArrayBuffer = isArrayBuffer;
exports.isArrayEqual = isArrayEqual;
exports.isBool = isBool;
exports.isEmptyObj = isEmptyObj;
exports.isNum = isNum;
exports.isString = isString;
exports.isSpace = isSpace;
exports.isSameOrigin = isSameOrigin;
exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
exports.isLittleEndian = isLittleEndian;
exports.isEvalSupported = isEvalSupported;
exports.log2 = log2;
exports.readInt8 = readInt8;
exports.readUint16 = readUint16;
exports.readUint32 = readUint32;
exports.removeNullCharacters = removeNullCharacters;
exports.setVerbosityLevel = setVerbosityLevel;
exports.shadow = shadow;
exports.string32 = string32;
exports.stringToBytes = stringToBytes;
exports.stringToPDFString = stringToPDFString;
exports.stringToUTF8String = stringToUTF8String;
exports.utf8StringToString = utf8StringToString;
exports.warn = warn;
exports.unreachable = unreachable;
Object.defineProperty(exports, "ReadableStream", {
  enumerable: true,
  get: function get() {
    return _streams_polyfill.ReadableStream;
  }
});
Object.defineProperty(exports, "URL", {
  enumerable: true,
  get: function get() {
    return _url_polyfill.URL;
  }
});
exports.createObjectURL = exports.FormatError = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.NativeImageDecoding = exports.MissingPDFException = exports.InvalidPDFException = exports.AbortException = exports.CMapCompressionType = exports.ImageKind = exports.FontType = exports.AnnotationType = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.UNSUPPORTED_FEATURES = exports.VerbosityLevel = exports.OPS = exports.IDENTITY_MATRIX = exports.FONT_IDENTITY_MATRIX = void 0;

__w_pdfjs_require__(6);

var _streams_polyfill = __w_pdfjs_require__(147);

var _url_polyfill = __w_pdfjs_require__(149);

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
var NativeImageDecoding = {
  NO