pdf-transform/pdfjs-dist/web/pdf_viewer.js

Transforms PDF to png or html files

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2020 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/web/pdf_viewer", [], factory);
	else if(typeof exports === 'object')
		exports["pdfjs-dist/web/pdf_viewer"] = factory();
	else
		root["pdfjs-dist/web/pdf_viewer"] = root.pdfjsViewer = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __w_pdfjs_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// 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;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__w_pdfjs_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__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 });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__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);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__w_pdfjs_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__w_pdfjs_require__.p = "";
/******/
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/******/ 	// Load entry module and return exports
/******/ 	return __w_pdfjs_require__(__w_pdfjs_require__.s = 0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
Object.defineProperty(exports, "AnnotationLayerBuilder", {
  enumerable: true,
  get: function () {
    return _annotation_layer_builder.AnnotationLayerBuilder;
  }
});
Object.defineProperty(exports, "DefaultAnnotationLayerFactory", {
  enumerable: true,
  get: function () {
    return _annotation_layer_builder.DefaultAnnotationLayerFactory;
  }
});
Object.defineProperty(exports, "DefaultTextLayerFactory", {
  enumerable: true,
  get: function () {
    return _text_layer_builder.DefaultTextLayerFactory;
  }
});
Object.defineProperty(exports, "TextLayerBuilder", {
  enumerable: true,
  get: function () {
    return _text_layer_builder.TextLayerBuilder;
  }
});
Object.defineProperty(exports, "EventBus", {
  enumerable: true,
  get: function () {
    return _ui_utils.EventBus;
  }
});
Object.defineProperty(exports, "NullL10n", {
  enumerable: true,
  get: function () {
    return _ui_utils.NullL10n;
  }
});
Object.defineProperty(exports, "ProgressBar", {
  enumerable: true,
  get: function () {
    return _ui_utils.ProgressBar;
  }
});
Object.defineProperty(exports, "PDFLinkService", {
  enumerable: true,
  get: function () {
    return _pdf_link_service.PDFLinkService;
  }
});
Object.defineProperty(exports, "SimpleLinkService", {
  enumerable: true,
  get: function () {
    return _pdf_link_service.SimpleLinkService;
  }
});
Object.defineProperty(exports, "DownloadManager", {
  enumerable: true,
  get: function () {
    return _download_manager.DownloadManager;
  }
});
Object.defineProperty(exports, "GenericL10n", {
  enumerable: true,
  get: function () {
    return _genericl10n.GenericL10n;
  }
});
Object.defineProperty(exports, "PDFFindController", {
  enumerable: true,
  get: function () {
    return _pdf_find_controller.PDFFindController;
  }
});
Object.defineProperty(exports, "PDFHistory", {
  enumerable: true,
  get: function () {
    return _pdf_history.PDFHistory;
  }
});
Object.defineProperty(exports, "PDFPageView", {
  enumerable: true,
  get: function () {
    return _pdf_page_view.PDFPageView;
  }
});
Object.defineProperty(exports, "PDFSinglePageViewer", {
  enumerable: true,
  get: function () {
    return _pdf_single_page_viewer.PDFSinglePageViewer;
  }
});
Object.defineProperty(exports, "PDFViewer", {
  enumerable: true,
  get: function () {
    return _pdf_viewer.PDFViewer;
  }
});

var _annotation_layer_builder = __w_pdfjs_require__(1);

var _text_layer_builder = __w_pdfjs_require__(5);

var _ui_utils = __w_pdfjs_require__(3);

var _pdf_link_service = __w_pdfjs_require__(4);

var _download_manager = __w_pdfjs_require__(6);

var _genericl10n = __w_pdfjs_require__(7);

var _pdf_find_controller = __w_pdfjs_require__(9);

var _pdf_history = __w_pdfjs_require__(11);

var _pdf_page_view = __w_pdfjs_require__(12);

var _pdf_single_page_viewer = __w_pdfjs_require__(15);

var _pdf_viewer = __w_pdfjs_require__(17);

const pdfjsVersion = '2.5.78';
const pdfjsBuild = '9da32087';

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

"use strict";


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

var _pdfjsLib = __w_pdfjs_require__(2);

var _ui_utils = __w_pdfjs_require__(3);

var _pdf_link_service = __w_pdfjs_require__(4);

class AnnotationLayerBuilder {
  constructor({
    pageDiv,
    pdfPage,
    linkService,
    downloadManager,
    imageResourcesPath = "",
    renderInteractiveForms = false,
    l10n = _ui_utils.NullL10n
  }) {
    this.pageDiv = pageDiv;
    this.pdfPage = pdfPage;
    this.linkService = linkService;
    this.downloadManager = downloadManager;
    this.imageResourcesPath = imageResourcesPath;
    this.renderInteractiveForms = renderInteractiveForms;
    this.l10n = l10n;
    this.div = null;
    this._cancelled = false;
  }

  render(viewport, intent = "display") {
    this.pdfPage.getAnnotations({
      intent
    }).then(annotations => {
      if (this._cancelled) {
        return;
      }

      const parameters = {
        viewport: viewport.clone({
          dontFlip: true
        }),
        div: this.div,
        annotations,
        page: this.pdfPage,
        imageResourcesPath: this.imageResourcesPath,
        renderInteractiveForms: this.renderInteractiveForms,
        linkService: this.linkService,
        downloadManager: this.downloadManager
      };

      if (this.div) {
        _pdfjsLib.AnnotationLayer.update(parameters);
      } else {
        if (annotations.length === 0) {
          return;
        }

        this.div = document.createElement("div");
        this.div.className = "annotationLayer";
        this.pageDiv.appendChild(this.div);
        parameters.div = this.div;

        _pdfjsLib.AnnotationLayer.render(parameters);

        this.l10n.translate(this.div);
      }
    });
  }

  cancel() {
    this._cancelled = true;
  }

  hide() {
    if (!this.div) {
      return;
    }

    this.div.setAttribute("hidden", "true");
  }

}

exports.AnnotationLayerBuilder = AnnotationLayerBuilder;

class DefaultAnnotationLayerFactory {
  createAnnotationLayerBuilder(pageDiv, pdfPage, imageResourcesPath = "", renderInteractiveForms = false, l10n = _ui_utils.NullL10n) {
    return new AnnotationLayerBuilder({
      pageDiv,
      pdfPage,
      imageResourcesPath,
      renderInteractiveForms,
      linkService: new _pdf_link_service.SimpleLinkService(),
      l10n
    });
  }

}

exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory;

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

"use strict";


let pdfjsLib;

if (typeof window !== "undefined" && window["pdfjs-dist/build/pdf"]) {
  pdfjsLib = window["pdfjs-dist/build/pdf"];
} else {
  pdfjsLib = require("../build/pdf.js");
}

module.exports = pdfjsLib;

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

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isValidRotation = isValidRotation;
exports.isValidScrollMode = isValidScrollMode;
exports.isValidSpreadMode = isValidSpreadMode;
exports.isPortraitOrientation = isPortraitOrientation;
exports.clamp = clamp;
exports.getPDFFileNameFromURL = getPDFFileNameFromURL;
exports.noContextMenuHandler = noContextMenuHandler;
exports.parseQueryString = parseQueryString;
exports.backtrackBeforeAllVisibleElements = backtrackBeforeAllVisibleElements;
exports.getVisibleElements = getVisibleElements;
exports.roundToDivide = roundToDivide;
exports.getPageSizeInches = getPageSizeInches;
exports.approximateFraction = approximateFraction;
exports.getOutputScale = getOutputScale;
exports.scrollIntoView = scrollIntoView;
exports.watchScroll = watchScroll;
exports.binarySearchFirstItem = binarySearchFirstItem;
exports.normalizeWheelEventDelta = normalizeWheelEventDelta;
exports.waitOnEventOrTimeout = waitOnEventOrTimeout;
exports.moveToEndOfArray = moveToEndOfArray;
exports.WaitOnType = exports.animationStarted = exports.ProgressBar = exports.EventBus = exports.NullL10n = exports.SpreadMode = exports.ScrollMode = exports.TextLayerMode = exports.RendererType = exports.PresentationModeState = exports.VERTICAL_PADDING = exports.SCROLLBAR_PADDING = exports.MAX_AUTO_SCALE = exports.UNKNOWN_SCALE = exports.MAX_SCALE = exports.MIN_SCALE = exports.DEFAULT_SCALE = exports.DEFAULT_SCALE_VALUE = exports.CSS_UNITS = exports.AutoPrintRegExp = void 0;
const CSS_UNITS = 96.0 / 72.0;
exports.CSS_UNITS = CSS_UNITS;
const DEFAULT_SCALE_VALUE = "auto";
exports.DEFAULT_SCALE_VALUE = DEFAULT_SCALE_VALUE;
const DEFAULT_SCALE = 1.0;
exports.DEFAULT_SCALE = DEFAULT_SCALE;
const MIN_SCALE = 0.1;
exports.MIN_SCALE = MIN_SCALE;
const MAX_SCALE = 10.0;
exports.MAX_SCALE = MAX_SCALE;
const UNKNOWN_SCALE = 0;
exports.UNKNOWN_SCALE = UNKNOWN_SCALE;
const MAX_AUTO_SCALE = 1.25;
exports.MAX_AUTO_SCALE = MAX_AUTO_SCALE;
const SCROLLBAR_PADDING = 40;
exports.SCROLLBAR_PADDING = SCROLLBAR_PADDING;
const VERTICAL_PADDING = 5;
exports.VERTICAL_PADDING = VERTICAL_PADDING;
const PresentationModeState = {
  UNKNOWN: 0,
  NORMAL: 1,
  CHANGING: 2,
  FULLSCREEN: 3
};
exports.PresentationModeState = PresentationModeState;
const RendererType = {
  CANVAS: "canvas",
  SVG: "svg"
};
exports.RendererType = RendererType;
const TextLayerMode = {
  DISABLE: 0,
  ENABLE: 1,
  ENABLE_ENHANCE: 2
};
exports.TextLayerMode = TextLayerMode;
const ScrollMode = {
  UNKNOWN: -1,
  VERTICAL: 0,
  HORIZONTAL: 1,
  WRAPPED: 2
};
exports.ScrollMode = ScrollMode;
const SpreadMode = {
  UNKNOWN: -1,
  NONE: 0,
  ODD: 1,
  EVEN: 2
};
exports.SpreadMode = SpreadMode;
const AutoPrintRegExp = /\bprint\s*\(/;
exports.AutoPrintRegExp = AutoPrintRegExp;

function formatL10nValue(text, args) {
  if (!args) {
    return text;
  }

  return text.replace(/\{\{\s*(\w+)\s*\}\}/g, (all, name) => {
    return name in args ? args[name] : "{{" + name + "}}";
  });
}

const NullL10n = {
  async getLanguage() {
    return "en-us";
  },

  async getDirection() {
    return "ltr";
  },

  async get(property, args, fallback) {
    return formatL10nValue(fallback, args);
  },

  async translate(element) {}

};
exports.NullL10n = NullL10n;

function getOutputScale(ctx) {
  const devicePixelRatio = window.devicePixelRatio || 1;
  const backingStoreRatio = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;
  const pixelRatio = devicePixelRatio / backingStoreRatio;
  return {
    sx: pixelRatio,
    sy: pixelRatio,
    scaled: pixelRatio !== 1
  };
}

function scrollIntoView(element, spot, skipOverflowHiddenElements = false) {
  let parent = element.offsetParent;

  if (!parent) {
    console.error("offsetParent is not set -- cannot scroll");
    return;
  }

  let offsetY = element.offsetTop + element.clientTop;
  let offsetX = element.offsetLeft + element.clientLeft;

  while (parent.clientHeight === parent.scrollHeight && parent.clientWidth === parent.scrollWidth || skipOverflowHiddenElements && getComputedStyle(parent).overflow === "hidden") {
    if (parent.dataset._scaleY) {
      offsetY /= parent.dataset._scaleY;
      offsetX /= parent.dataset._scaleX;
    }

    offsetY += parent.offsetTop;
    offsetX += parent.offsetLeft;
    parent = parent.offsetParent;

    if (!parent) {
      return;
    }
  }

  if (spot) {
    if (spot.top !== undefined) {
      offsetY += spot.top;
    }

    if (spot.left !== undefined) {
      offsetX += spot.left;
      parent.scrollLeft = offsetX;
    }
  }

  parent.scrollTop = offsetY;
}

function watchScroll(viewAreaElement, callback) {
  const debounceScroll = function (evt) {
    if (rAF) {
      return;
    }

    rAF = window.requestAnimationFrame(function viewAreaElementScrolled() {
      rAF = null;
      const currentX = viewAreaElement.scrollLeft;
      const lastX = state.lastX;

      if (currentX !== lastX) {
        state.right = currentX > lastX;
      }

      state.lastX = currentX;
      const currentY = viewAreaElement.scrollTop;
      const lastY = state.lastY;

      if (currentY !== lastY) {
        state.down = currentY > lastY;
      }

      state.lastY = currentY;
      callback(state);
    });
  };

  const state = {
    right: true,
    down: true,
    lastX: viewAreaElement.scrollLeft,
    lastY: viewAreaElement.scrollTop,
    _eventHandler: debounceScroll
  };
  let rAF = null;
  viewAreaElement.addEventListener("scroll", debounceScroll, true);
  return state;
}

function parseQueryString(query) {
  const parts = query.split("&");
  const params = Object.create(null);

  for (let i = 0, ii = parts.length; i < ii; ++i) {
    const param = parts[i].split("=");
    const key = param[0].toLowerCase();
    const value = param.length > 1 ? param[1] : null;
    params[decodeURIComponent(key)] = decodeURIComponent(value);
  }

  return params;
}

function binarySearchFirstItem(items, condition) {
  let minIndex = 0;
  let maxIndex = items.length - 1;

  if (maxIndex < 0 || !condition(items[maxIndex])) {
    return items.length;
  }

  if (condition(items[minIndex])) {
    return minIndex;
  }

  while (minIndex < maxIndex) {
    const currentIndex = minIndex + maxIndex >> 1;
    const currentItem = items[currentIndex];

    if (condition(currentItem)) {
      maxIndex = currentIndex;
    } else {
      minIndex = currentIndex + 1;
    }
  }

  return minIndex;
}

function approximateFraction(x) {
  if (Math.floor(x) === x) {
    return [x, 1];
  }

  const xinv = 1 / x;
  const limit = 8;

  if (xinv > limit) {
    return [1, limit];
  } else if (Math.floor(xinv) === xinv) {
    return [1, xinv];
  }

  const x_ = x > 1 ? xinv : x;
  let a = 0,
      b = 1,
      c = 1,
      d = 1;

  while (true) {
    const p = a + c,
          q = b + d;

    if (q > limit) {
      break;
    }

    if (x_ <= p / q) {
      c = p;
      d = q;
    } else {
      a = p;
      b = q;
    }
  }

  let result;

  if (x_ - a / b < c / d - x_) {
    result = x_ === x ? [a, b] : [b, a];
  } else {
    result = x_ === x ? [c, d] : [d, c];
  }

  return result;
}

function roundToDivide(x, div) {
  const r = x % div;
  return r === 0 ? x : Math.round(x - r + div);
}

function getPageSizeInches({
  view,
  userUnit,
  rotate
}) {
  const [x1, y1, x2, y2] = view;
  const changeOrientation = rotate % 180 !== 0;
  const width = (x2 - x1) / 72 * userUnit;
  const height = (y2 - y1) / 72 * userUnit;
  return {
    width: changeOrientation ? height : width,
    height: changeOrientation ? width : height
  };
}

function backtrackBeforeAllVisibleElements(index, views, top) {
  if (index < 2) {
    return index;
  }

  let elt = views[index].div;
  let pageTop = elt.offsetTop + elt.clientTop;

  if (pageTop >= top) {
    elt = views[index - 1].div;
    pageTop = elt.offsetTop + elt.clientTop;
  }

  for (let i = index - 2; i >= 0; --i) {
    elt = views[i].div;

    if (elt.offsetTop + elt.clientTop + elt.clientHeight <= pageTop) {
      break;
    }

    index = i;
  }

  return index;
}

function getVisibleElements(scrollEl, views, sortByVisibility = false, horizontal = false) {
  const top = scrollEl.scrollTop,
        bottom = top + scrollEl.clientHeight;
  const left = scrollEl.scrollLeft,
        right = left + scrollEl.clientWidth;

  function isElementBottomAfterViewTop(view) {
    const element = view.div;
    const elementBottom = element.offsetTop + element.clientTop + element.clientHeight;
    return elementBottom > top;
  }

  function isElementRightAfterViewLeft(view) {
    const element = view.div;
    const elementRight = element.offsetLeft + element.clientLeft + element.clientWidth;
    return elementRight > left;
  }

  const visible = [],
        numViews = views.length;
  let firstVisibleElementInd = numViews === 0 ? 0 : binarySearchFirstItem(views, horizontal ? isElementRightAfterViewLeft : isElementBottomAfterViewTop);

  if (firstVisibleElementInd > 0 && firstVisibleElementInd < numViews && !horizontal) {
    firstVisibleElementInd = backtrackBeforeAllVisibleElements(firstVisibleElementInd, views, top);
  }

  let lastEdge = horizontal ? right : -1;

  for (let i = firstVisibleElementInd; i < numViews; i++) {
    const view = views[i],
          element = view.div;
    const currentWidth = element.offsetLeft + element.clientLeft;
    const currentHeight = element.offsetTop + element.clientTop;
    const viewWidth = element.clientWidth,
          viewHeight = element.clientHeight;
    const viewRight = currentWidth + viewWidth;
    const viewBottom = currentHeight + viewHeight;

    if (lastEdge === -1) {
      if (viewBottom >= bottom) {
        lastEdge = viewBottom;
      }
    } else if ((horizontal ? currentWidth : currentHeight) > lastEdge) {
      break;
    }

    if (viewBottom <= top || currentHeight >= bottom || viewRight <= left || currentWidth >= right) {
      continue;
    }

    const hiddenHeight = Math.max(0, top - currentHeight) + Math.max(0, viewBottom - bottom);
    const hiddenWidth = Math.max(0, left - currentWidth) + Math.max(0, viewRight - right);
    const percent = (viewHeight - hiddenHeight) * (viewWidth - hiddenWidth) * 100 / viewHeight / viewWidth | 0;
    visible.push({
      id: view.id,
      x: currentWidth,
      y: currentHeight,
      view,
      percent
    });
  }

  const first = visible[0],
        last = visible[visible.length - 1];

  if (sortByVisibility) {
    visible.sort(function (a, b) {
      const pc = a.percent - b.percent;

      if (Math.abs(pc) > 0.001) {
        return -pc;
      }

      return a.id - b.id;
    });
  }

  return {
    first,
    last,
    views: visible
  };
}

function noContextMenuHandler(evt) {
  evt.preventDefault();
}

function isDataSchema(url) {
  let i = 0;
  const ii = url.length;

  while (i < ii && url[i].trim() === "") {
    i++;
  }

  return url.substring(i, i + 5).toLowerCase() === "data:";
}

function getPDFFileNameFromURL(url, defaultFilename = "document.pdf") {
  if (typeof url !== "string") {
    return defaultFilename;
  }

  if (isDataSchema(url)) {
    console.warn("getPDFFileNameFromURL: " + 'ignoring "data:" URL for performance reasons.');
    return defaultFilename;
  }

  const reURI = /^(?:(?:[^:]+:)?\/\/[^\/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/;
  const reFilename = /[^\/?#=]+\.pdf\b(?!.*\.pdf\b)/i;
  const splitURI = reURI.exec(url);
  let suggestedFilename = reFilename.exec(splitURI[1]) || reFilename.exec(splitURI[2]) || reFilename.exec(splitURI[3]);

  if (suggestedFilename) {
    suggestedFilename = suggestedFilename[0];

    if (suggestedFilename.includes("%")) {
      try {
        suggestedFilename = reFilename.exec(decodeURIComponent(suggestedFilename))[0];
      } catch (ex) {}
    }
  }

  return suggestedFilename || defaultFilename;
}

function normalizeWheelEventDelta(evt) {
  let delta = Math.sqrt(evt.deltaX * evt.deltaX + evt.deltaY * evt.deltaY);
  const angle = Math.atan2(evt.deltaY, evt.deltaX);

  if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
    delta = -delta;
  }

  const MOUSE_DOM_DELTA_PIXEL_MODE = 0;
  const MOUSE_DOM_DELTA_LINE_MODE = 1;
  const MOUSE_PIXELS_PER_LINE = 30;
  const MOUSE_LINES_PER_PAGE = 30;

  if (evt.deltaMode === MOUSE_DOM_DELTA_PIXEL_MODE) {
    delta /= MOUSE_PIXELS_PER_LINE * MOUSE_LINES_PER_PAGE;
  } else if (evt.deltaMode === MOUSE_DOM_DELTA_LINE_MODE) {
    delta /= MOUSE_LINES_PER_PAGE;
  }

  return delta;
}

function isValidRotation(angle) {
  return Number.isInteger(angle) && angle % 90 === 0;
}

function isValidScrollMode(mode) {
  return Number.isInteger(mode) && Object.values(ScrollMode).includes(mode) && mode !== ScrollMode.UNKNOWN;
}

function isValidSpreadMode(mode) {
  return Number.isInteger(mode) && Object.values(SpreadMode).includes(mode) && mode !== SpreadMode.UNKNOWN;
}

function isPortraitOrientation(size) {
  return size.width <= size.height;
}

const WaitOnType = {
  EVENT: "event",
  TIMEOUT: "timeout"
};
exports.WaitOnType = WaitOnType;

function waitOnEventOrTimeout({
  target,
  name,
  delay = 0
}) {
  return new Promise(function (resolve, reject) {
    if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
      throw new Error("waitOnEventOrTimeout - invalid parameters.");
    }

    function handler(type) {
      if (target instanceof EventBus) {
        target._off(name, eventHandler);
      } else {
        target.removeEventListener(name, eventHandler);
      }

      if (timeout) {
        clearTimeout(timeout);
      }

      resolve(type);
    }

    const eventHandler = handler.bind(null, WaitOnType.EVENT);

    if (target instanceof EventBus) {
      target._on(name, eventHandler);
    } else {
      target.addEventListener(name, eventHandler);
    }

    const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
    const timeout = setTimeout(timeoutHandler, delay);
  });
}

const animationStarted = new Promise(function (resolve) {
  window.requestAnimationFrame(resolve);
});
exports.animationStarted = animationStarted;

function dispatchDOMEvent(eventName, args = null) {
  throw new Error("Not implemented: dispatchDOMEvent");
}

class EventBus {
  constructor(options) {
    this._listeners = Object.create(null);
  }

  on(eventName, listener) {
    this._on(eventName, listener, {
      external: true
    });
  }

  off(eventName, listener) {
    this._off(eventName, listener, {
      external: true
    });
  }

  dispatch(eventName) {
    const eventListeners = this._listeners[eventName];

    if (!eventListeners || eventListeners.length === 0) {
      return;
    }

    const args = Array.prototype.slice.call(arguments, 1);
    let externalListeners;
    eventListeners.slice(0).forEach(function ({
      listener,
      external
    }) {
      if (external) {
        if (!externalListeners) {
          externalListeners = [];
        }

        externalListeners.push(listener);
        return;
      }

      listener.apply(null, args);
    });

    if (externalListeners) {
      externalListeners.forEach(function (listener) {
        listener.apply(null, args);
      });
      externalListeners = null;
    }
  }

  _on(eventName, listener, options = null) {
    let eventListeners = this._listeners[eventName];

    if (!eventListeners) {
      this._listeners[eventName] = eventListeners = [];
    }

    eventListeners.push({
      listener,
      external: (options && options.external) === true
    });
  }

  _off(eventName, listener, options = null) {
    const eventListeners = this._listeners[eventName];

    if (!eventListeners) {
      return;
    }

    for (let i = 0, ii = eventListeners.length; i < ii; i++) {
      if (eventListeners[i].listener === listener) {
        eventListeners.splice(i, 1);
        return;
      }
    }
  }

}

exports.EventBus = EventBus;

function clamp(v, min, max) {
  return Math.min(Math.max(v, min), max);
}

class ProgressBar {
  constructor(id, {
    height,
    width,
    units
  } = {}) {
    this.visible = true;
    this.div = document.querySelector(id + " .progress");
    this.bar = this.div.parentNode;
    this.height = height || 100;
    this.width = width || 100;
    this.units = units || "%";
    this.div.style.height = this.height + this.units;
    this.percent = 0;
  }

  _updateBar() {
    if (this._indeterminate) {
      this.div.classList.add("indeterminate");
      this.div.style.width = this.width + this.units;
      return;
    }

    this.div.classList.remove("indeterminate");
    const progressSize = this.width * this._percent / 100;
    this.div.style.width = progressSize + this.units;
  }

  get percent() {
    return this._percent;
  }

  set percent(val) {
    this._indeterminate = isNaN(val);
    this._percent = clamp(val, 0, 100);

    this._updateBar();
  }

  setWidth(viewer) {
    if (!viewer) {
      return;
    }

    const container = viewer.parentNode;
    const scrollbarWidth = container.offsetWidth - viewer.offsetWidth;

    if (scrollbarWidth > 0) {
      this.bar.style.width = `calc(100% - ${scrollbarWidth}px)`;
    }
  }

  hide() {
    if (!this.visible) {
      return;
    }

    this.visible = false;
    this.bar.classList.add("hidden");
    document.body.classList.remove("loadingInProgress");
  }

  show() {
    if (this.visible) {
      return;
    }

    this.visible = true;
    document.body.classList.add("loadingInProgress");
    this.bar.classList.remove("hidden");
  }

}

exports.ProgressBar = ProgressBar;

function moveToEndOfArray(arr, condition) {
  const moved = [],
        len = arr.length;
  let write = 0;

  for (let read = 0; read < len; ++read) {
    if (condition(arr[read])) {
      moved.push(arr[read]);
    } else {
      arr[write] = arr[read];
      ++write;
    }
  }

  for (let read = 0; write < len; ++read, ++write) {
    arr[write] = moved[read];
  }
}

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

"use strict";


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

var _ui_utils = __w_pdfjs_require__(3);

class PDFLinkService {
  constructor({
    eventBus,
    externalLinkTarget = null,
    externalLinkRel = null,
    externalLinkEnabled = true,
    ignoreDestinationZoom = false
  } = {}) {
    this.eventBus = eventBus;
    this.externalLinkTarget = externalLinkTarget;
    this.externalLinkRel = externalLinkRel;
    this.externalLinkEnabled = externalLinkEnabled;
    this._ignoreDestinationZoom = ignoreDestinationZoom;
    this.baseUrl = null;
    this.pdfDocument = null;
    this.pdfViewer = null;
    this.pdfHistory = null;
    this._pagesRefCache = null;
  }

  setDocument(pdfDocument, baseUrl = null) {
    this.baseUrl = baseUrl;
    this.pdfDocument = pdfDocument;
    this._pagesRefCache = Object.create(null);
  }

  setViewer(pdfViewer) {
    this.pdfViewer = pdfViewer;
  }

  setHistory(pdfHistory) {
    this.pdfHistory = pdfHistory;
  }

  get pagesCount() {
    return this.pdfDocument ? this.pdfDocument.numPages : 0;
  }

  get page() {
    return this.pdfViewer.currentPageNumber;
  }

  set page(value) {
    this.pdfViewer.currentPageNumber = value;
  }

  get rotation() {
    return this.pdfViewer.pagesRotation;
  }

  set rotation(value) {
    this.pdfViewer.pagesRotation = value;
  }

  navigateTo(dest) {
    const goToDestination = ({
      namedDest,
      explicitDest
    }) => {
      const destRef = explicitDest[0];
      let pageNumber;

      if (destRef instanceof Object) {
        pageNumber = this._cachedPageNumber(destRef);

        if (pageNumber === null) {
          this.pdfDocument.getPageIndex(destRef).then(pageIndex => {
            this.cachePageRef(pageIndex + 1, destRef);
            goToDestination({
              namedDest,
              explicitDest
            });
          }).catch(() => {
            console.error(`PDFLinkService.navigateTo: "${destRef}" is not ` + `a valid page reference, for dest="${dest}".`);
          });
          return;
        }
      } else if (Number.isInteger(destRef)) {
        pageNumber = destRef + 1;
      } else {
        console.error(`PDFLinkService.navigateTo: "${destRef}" is not ` + `a valid destination reference, for dest="${dest}".`);
        return;
      }

      if (!pageNumber || pageNumber < 1 || pageNumber > this.pagesCount) {
        console.error(`PDFLinkService.navigateTo: "${pageNumber}" is not ` + `a valid page number, for dest="${dest}".`);
        return;
      }

      if (this.pdfHistory) {
        this.pdfHistory.pushCurrentPosition();
        this.pdfHistory.push({
          namedDest,
          explicitDest,
          pageNumber
        });
      }

      this.pdfViewer.scrollPageIntoView({
        pageNumber,
        destArray: explicitDest,
        ignoreDestinationZoom: this._ignoreDestinationZoom
      });
    };

    new Promise((resolve, reject) => {
      if (typeof dest === "string") {
        this.pdfDocument.getDestination(dest).then(destArray => {
          resolve({
            namedDest: dest,
            explicitDest: destArray
          });
        });
        return;
      }

      resolve({
        namedDest: "",
        explicitDest: dest
      });
    }).then(data => {
      if (!Array.isArray(data.explicitDest)) {
        console.error(`PDFLinkService.navigateTo: "${data.explicitDest}" is` + ` not a valid destination array, for dest="${dest}".`);
        return;
      }

      goToDestination(data);
    });
  }

  getDestinationHash(dest) {
    if (typeof dest === "string") {
      return this.getAnchorUrl("#" + escape(dest));
    }

    if (Array.isArray(dest)) {
      const str = JSON.stringify(dest);
      return this.getAnchorUrl("#" + escape(str));
    }

    return this.getAnchorUrl("");
  }

  getAnchorUrl(anchor) {
    return (this.baseUrl || "") + anchor;
  }

  setHash(hash) {
    let pageNumber, dest;

    if (hash.includes("=")) {
      const params = (0, _ui_utils.parseQueryString)(hash);

      if ("search" in params) {
        this.eventBus.dispatch("findfromurlhash", {
          source: this,
          query: params["search"].replace(/"/g, ""),
          phraseSearch: params["phrase"] === "true"
        });
      }

      if ("nameddest" in params) {
        this.navigateTo(params.nameddest);
        return;
      }

      if ("page" in params) {
        pageNumber = params.page | 0 || 1;
      }

      if ("zoom" in params) {
        const zoomArgs = params.zoom.split(",");
        const zoomArg = zoomArgs[0];
        const zoomArgNumber = parseFloat(zoomArg);

        if (!zoomArg.includes("Fit")) {
          dest = [null, {
            name: "XYZ"
          }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null, zoomArgs.length > 2 ? zoomArgs[2] | 0 : null, zoomArgNumber ? zoomArgNumber / 100 : zoomArg];
        } else {
          if (zoomArg === "Fit" || zoomArg === "FitB") {
            dest = [null, {
              name: zoomArg
            }];
          } else if (zoomArg === "FitH" || zoomArg === "FitBH" || zoomArg === "FitV" || zoomArg === "FitBV") {
            dest = [null, {
              name: zoomArg
            }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null];
          } else if (zoomArg === "FitR") {
            if (zoomArgs.length !== 5) {
              console.error('PDFLinkService.setHash: Not enough parameters for "FitR".');
            } else {
              dest = [null, {
                name: zoomArg
              }, zoomArgs[1] | 0, zoomArgs[2] | 0, zoomArgs[3] | 0, zoomArgs[4] | 0];
            }
          } else {
            console.error(`PDFLinkService.setHash: "${zoomArg}" is not ` + "a valid zoom value.");
          }
        }
      }

      if (dest) {
        this.pdfViewer.scrollPageIntoView({
          pageNumber: pageNumber || this.page,
          destArray: dest,
          allowNegativeOffset: true
        });
      } else if (pageNumber) {
        this.page = pageNumber;
      }

      if ("pagemode" in params) {
        this.eventBus.dispatch("pagemode", {
          source: this,
          mode: params.pagemode
        });
      }
    } else {
      dest = unescape(hash);

      try {
        dest = JSON.parse(dest);

        if (!Array.isArray(dest)) {
          dest = dest.toString();
        }
      } catch (ex) {}

      if (typeof dest === "string" || isValidExplicitDestination(dest)) {
        this.navigateTo(dest);
        return;
      }

      console.error(`PDFLinkService.setHash: "${unescape(hash)}" is not ` + "a valid destination.");
    }
  }

  executeNamedAction(action) {
    switch (action) {
      case "GoBack":
        if (this.pdfHistory) {
          this.pdfHistory.back();
        }

        break;

      case "GoForward":
        if (this.pdfHistory) {
          this.pdfHistory.forward();
        }

        break;

      case "NextPage":
        if (this.page < this.pagesCount) {
          this.page++;
        }

        break;

      case "PrevPage":
        if (this.page > 1) {
          this.page--;
        }

        break;

      case "LastPage":
        this.page = this.pagesCount;
        break;

      case "FirstPage":
        this.page = 1;
        break;

      default:
        break;
    }

    this.eventBus.dispatch("namedaction", {
      source: this,
      action
    });
  }

  cachePageRef(pageNum, pageRef) {
    if (!pageRef) {
      return;
    }

    const refStr = pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`;
    this._pagesRefCache[refStr] = pageNum;
  }

  _cachedPageNumber(pageRef) {
    const refStr = pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`;
    return this._pagesRefCache && this._pagesRefCache[refStr] || null;
  }

  isPageVisible(pageNumber) {
    return this.pdfViewer.isPageVisible(pageNumber);
  }

}

exports.PDFLinkService = PDFLinkService;

function isValidExplicitDestination(dest) {
  if (!Array.isArray(dest)) {
    return false;
  }

  const destLength = dest.length;

  if (destLength < 2) {
    return false;
  }

  const page = dest[0];

  if (!(typeof page === "object" && Number.isInteger(page.num) && Number.isInteger(page.gen)) && !(Number.isInteger(page) && page >= 0)) {
    return false;
  }

  const zoom = dest[1];

  if (!(typeof zoom === "object" && typeof zoom.name === "string")) {
    return false;
  }

  let allowNull = true;

  switch (zoom.name) {
    case "XYZ":
      if (destLength !== 5) {
        return false;
      }

      break;

    case "Fit":
    case "FitB":
      return destLength === 2;

    case "FitH":
    case "FitBH":
    case "FitV":
    case "FitBV":
      if (destLength !== 3) {
        return false;
      }

      break;

    case "FitR":
      if (destLength !== 6) {
        return false;
      }

      allowNull = false;
      break;

    default:
      return false;
  }

  for (let i = 2; i < destLength; i++) {
    const param = dest[i];

    if (!(typeof param === "number" || allowNull && param === null)) {
      return false;
    }
  }

  return true;
}

class SimpleLinkService {
  constructor() {
    this.externalLinkTarget = null;
    this.externalLinkRel = null;
    this.externalLinkEnabled = true;
    this._ignoreDestinationZoom = false;
  }

  get pagesCount() {
    return 0;
  }

  get page() {
    return 0;
  }

  set page(value) {}

  get rotation() {
    return 0;
  }

  set rotation(value) {}

  navigateTo(dest) {}

  getDestinationHash(dest) {
    return "#";
  }

  getAnchorUrl(hash) {
    return "#";
  }

  setHash(hash) {}

  executeNamedAction(action) {}

  cachePageRef(pageNum, pageRef) {}

  isPageVisible(pageNumber) {
    return true;
  }

}

exports.SimpleLinkService = SimpleLinkService;

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

"use strict";


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

var _pdfjsLib = __w_pdfjs_require__(2);

const EXPAND_DIVS_TIMEOUT = 300;

class TextLayerBuilder {
  constructor({
    textLayerDiv,
    eventBus,
    pageIndex,
    viewport,
    findController = null,
    enhanceTextSelection = false
  }) {
    this.textLayerDiv = textLayerDiv;
    this.eventBus = eventBus;
    this.textContent = null;
    this.textContentItemsStr = [];
    this.textContentStream = null;
    this.renderingDone = false;
    this.pageIdx = pageIndex;
    this.pageNumber = this.pageIdx + 1;
    this.matches = [];
    this.viewport = viewport;
    this.textDivs = [];
    this.findController = findController;
    this.textLayerRenderTask = null;
    this.enhanceTextSelection = enhanceTextSelection;
    this._onUpdateTextLayerMatches = null;

    this._bindMouse();
  }

  _finishRendering() {
    this.renderingDone = true;

    if (!this.enhanceTextSelection) {
      const endOfContent = document.createElement("div");
      endOfContent.className = "endOfContent";
      this.textLayerDiv.appendChild(endOfContent);
    }

    this.eventBus.dispatch("textlayerrendered", {
      source: this,
      pageNumber: this.pageNumber,
      numTextDivs: this.textDivs.length
    });
  }

  render(timeout = 0) {
    if (!(this.textContent || this.textContentStream) || this.renderingDone) {
      return;
    }

    this.cancel();
    this.textDivs = [];
    const textLayerFrag = document.createDocumentFragment();
    this.textLayerRenderTask = (0, _pdfjsLib.renderTextLayer)({
      textContent: this.textContent,
      textContentStream: this.textContentStream,
      container: textLayerFrag,
      viewport: this.viewport,
      textDivs: this.textDivs,
      textContentItemsStr: this.textContentItemsStr,
      timeout,
      enhanceTextSelection: this.enhanceTextSelection
    });
    this.textLayerRenderTask.promise.then(() => {
      this.textLayerDiv.appendChild(textLayerFrag);

      this._finishRendering();

      this._updateMatches();
    }, function (reason) {});

    if (!this._onUpdateTextLayerMatches) {
      this._onUpdateTextLayerMatches = evt => {
        if (evt.pageIndex === this.pageIdx || evt.pageIndex === -1) {
          this._updateMatches();
        }
      };

      this.eventBus._on("updatetextlayermatches", this._onUpdateTextLayerMatches);
    }
  }

  cancel() {
    if (this.textLayerRenderTask) {
      this.textLayerRenderTask.cancel();
      this.textLayerRenderTask = null;
    }

    if (this._onUpdateTextLayerMatches) {
      this.eventBus._off("updatetextlayermatches", this._onUpdateTextLayerMatches);

      this._onUpdateTextLayerMatches = null;
    }
  }

  setTextContentStream(readableStream) {
    this.cancel();
    this.textContentStream = readableStream;
  }

  setTextContent(textContent) {
    this.cancel();
    this.textContent = textContent;
  }

  _convertMatches(matches, matchesLength) {
    if (!matches) {
      return [];
    }

    const {
      findController,
      textContentItemsStr
    } = this;
    let i = 0,
        iIndex = 0;
    const end = textContentItemsStr.length - 1;
    const queryLen = findController.state.query.length;
    const result = [];

    for (let m = 0, mm = matches.length; m < mm; m++) {
      let matchIdx = matches[m];

      while (i !== end && matchIdx >= iIndex + textContentItemsStr[i].length) {
        iIndex += textContentItemsStr[i].length;
        i++;
      }

      if (i === textContentItemsStr.length) {
        console.error("Could not find a matching mapping");
      }

      const match = {
        begin: {
          divIdx: i,
          offset: matchIdx - iIndex
        }
      };

      if (matchesLength) {
        matchIdx += matchesLength[m];
      } else {
        matchIdx += queryLen;
      }

      while (i !== end && matchIdx > iIndex + textContentItemsStr[i].length) {
        iIndex += textContentItemsStr[i].length;
        i++;
      }

      match.end = {
        divIdx: i,
        offset: matchIdx - iIndex
      };
      result.push(match);
    }

    return result;
  }

  _renderMatches(matches) {
    if (matches.length === 0) {
      return;
    }

    const {
      findController,
      pageIdx,
      textContentItemsStr,
      textDivs
    } = this;
    const isSelectedPage = pageIdx === findController.selected.pageIdx;
    const selectedMatchIdx = findController.selected.matchIdx;
    const highlightAll = findController.state.highlightAll;
    let prevEnd = null;
    const infinity = {
      divIdx: -1,
      offset: undefined
    };

    function beginText(begin, className) {
      const divIdx = begin.divIdx;
      textDivs[divIdx].textContent = "";
      appendTextToDiv(divIdx, 0, begin.offset, className);
    }

    function appendTextToDiv(divIdx, fromOffset, toOffset, className) {
      const div = textDivs[divIdx];
      const content = textContentItemsStr[divIdx].substring(fromOffset, toOffset);
      const node = document.createTextNode(content);

      if (className) {
        const span = document.createElement("span");
        span.className = className;
        span.appendChild(node);
        div.appendChild(span);
        return;
      }

      div.appendChild(node);
    }

    let i0 = selectedMatchIdx,
        i1 = i0 + 1;

    if (highlightAll) {
      i0 = 0;
      i1 = matches.length;
    } else if (!isSelectedPage) {
      return;
    }

    for (let i = i0; i < i1; i++) {
      const match = matches[i];
      const begin = match.begin;
      const end = match.end;
      const isSelected = isSelectedPage && i === selectedMatchIdx;
      const highlightSuffix = isSelected ? " selected" : "";

      if (isSelected) {
        findController.scrollMatchIntoView({
          element: textDivs[begin.divIdx],
          pageIndex: pageIdx,
          matchIndex: selectedMatchIdx
        });
      }

      if (!prevEnd || begin.divIdx !== prevEnd.divIdx) {
        if (prevEnd !== null) {
          appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset);
        }

        beginText(begin);
      } else {
        appendTextToDiv(prevEnd.divIdx, prevEnd.offset, begin.offset);
      }

      if (begin.divIdx === end.divIdx) {
        appendTextToDiv(begin.divIdx, begin.offset, end.offset, "highlight" + highlightSuffix);
      } else {
        appendTextToDiv(begin.divIdx, begin.offset, infinity.offset, "highlight begin" + highlightSuffix);

        for (let n0 = begin.divIdx + 1, n1 = end.divIdx; n0 < n1; n0++) {
          textDivs[n0].className = "highlight middle" + highlightSuffix;
        }

        beginText(end, "highlight end" + highlightSuffix);
      }

      prevEnd = end;
    }

    if (prevEnd) {
      appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset);
    }
  }

  _updateMatches() {
    if (!this.renderingDone) {
      return;
    }

    const {
      findController,
      matches,
      pageIdx,
      textContentItemsStr,
      textDivs
    } = this;
    let clearedUntilDivIdx = -1;

    for (let i = 0, ii = matches.length; i < ii; i++) {
      const match = matches[i];
      const begin = Math.max(clearedUntilDivIdx, match.begin.divIdx);

      for (let n = begin, end = match.end.divIdx; n <= end; n++) {
        const div = textDivs[n];
        div.textContent = textContentItemsStr[n];
        div.className = "";
      }

      clearedUntilDivIdx = match.end.divIdx + 1;
    }

    if (!findController || !findController.highlightMatches) {
      return;
    }

    const pageMatches = findController.pageMatches[pageIdx] || null;
    const pageMatchesLength = findController.pageMatchesLength[pageIdx] || null;
    this.matches = this._convertMatches(pageMatches, pageMatchesLength);

    this._renderMatches(this.matches);
  }

  _bindMouse() {
    const div = this.textLayerDiv;
    let expandDivsTimer = null;
    div.addEventListener("mousedown", evt => {
      if (this.enhanceTextSelection && this.textLayerRenderTask) {
        this.textLayerRenderTask.expandTextDivs(true);

        if (expandDivsTimer) {
          clearTimeout(expandDivsTimer);
          expandDivsTimer = null;
        }

        return;
      }

      const end = div.querySelector(".endOfContent");

      if (!end) {
        return;
      }

      let adjustTop = evt.target !== div;
      adjustTop = adjustTop && window.getComputedStyle(end).getPropertyValue("-moz-user-select") !== "none";

      if (adjustTop) {
        const divBounds = div.getBoundingClientRect();
        const r = Math.max(0, (evt.pageY - divBounds.top) / divBounds.height);
        end.style.top = (r * 100).toFixed(2) + "%";
      }

      end.classList.add("active");
    });
    div.addEventListener("mouseup", () => {
      if (this.enhanceTextSelection && this.textLayerRenderTask) {
        expandDivsTimer = setTimeout(() => {
          if (this.textLayerRenderTask) {
            this.textLayerRenderTask.expandTextDivs(false);
          }

          expandDivsTimer = null;
        }, EXPAND_DIVS_TIMEOUT);
        return;
      }

      const end = div.querySelector(".endOfContent");

      if (!end) {
        return;
      }

      end.style.top = "";
      end.classList.remove("active");
    });
  }

}

exports.TextLayerBuilder = TextLayerBuilder;

class DefaultTextLayerFactory {
  createTextLayerBuilder(textLayerDiv, pageIndex, viewport, enhanceTextSelection = false, eventBus) {
    return new TextLayerBuilder({
      textLayerDiv,
      pageIndex,
      viewport,
      enhanceTextSelection,
      eventBus
    });
  }

}

exports.DefaultTextLayerFactory = DefaultTextLayerFactory;

/***/ }),
/* 6 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


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

var _pdfjsLib = __w_pdfjs_require__(2);

;
const DISABLE_CREATE_OBJECT_URL = _pdfjsLib.apiCompatibilityParams.disableCreateObjectURL || false;

function download(blobUrl, filename) {
  const a = document.createElement("a");

  if (!a.click) {
    throw new Error('DownloadManager: "a.click()" is not supported.');
  }

  a.href = blobUrl;
  a.target = "_parent";

  if ("download" in a) {
    a.download = filename;
  }

  (document.body || document.documentElement).appendChild(a);
  a.click();
  a.remove();
}

class DownloadManager {
  constructor({
    disableCreateObjectURL = DISABLE_CREATE_OBJECT_URL
  }) {
    this.disableCreateObjectURL = disableCreateObjectURL;
  }

  downloadUrl(url, filename) {
    if (!(0, _pdfjsLib.createValidAbsoluteUrl)(url, "http://example.com")) {
      return;
    }

    download(url + "#pdfjs.action=download", filename);
  }

  downloadData(data, filename, contentType) {
    if (navigator.msSaveBlob) {
      navigator.msSaveBlob(new Blob([data], {
        type: contentType
      }), filename);
      return;
    }

    const blobUrl = (0, _pdfjsLib.createObjectURL)(data, contentType, this.disableCreateObjectURL);
    download(blobUrl, filename);
  }

  download(blob, url, filename) {
    if (navigator.msSaveBlob) {
      if (!navigator.msSaveBlob(blob, filena