How to use PDFWorkerStreamRangeReader method in wpt

Best JavaScript code snippet using wpt

worker_stream.js

Source:worker_stream.js

...51    }52  }, {53    key: "getRangeReader",54    value: function getRangeReader(begin, end) {55      var reader = new PDFWorkerStreamRangeReader(begin, end, this._msgHandler);56      this._rangeRequestReaders.push(reader);57      return reader;58    }59  }, {60    key: "cancelAllRequests",61    value: function cancelAllRequests(reason) {62      if (this._fullRequestReader) {63        this._fullRequestReader.cancel(reason);64      }65      var readers = this._rangeRequestReaders.slice(0);66      readers.forEach(function (reader) {67        reader.cancel(reason);68      });69    }70  }]);71  return PDFWorkerStream;72}();73exports.PDFWorkerStream = PDFWorkerStream;74var PDFWorkerStreamReader =75/*#__PURE__*/76function () {77  function PDFWorkerStreamReader(msgHandler) {78    var _this = this;79    _classCallCheck(this, PDFWorkerStreamReader);80    this._msgHandler = msgHandler;81    this.onProgress = null;82    this._contentLength = null;83    this._isRangeSupported = false;84    this._isStreamingSupported = false;85    var readableStream = this._msgHandler.sendWithStream('GetReader');86    this._reader = readableStream.getReader();87    this._headersReady = this._msgHandler.sendWithPromise('ReaderHeadersReady').then(function (data) {88      _this._isStreamingSupported = data.isStreamingSupported;89      _this._isRangeSupported = data.isRangeSupported;90      _this._contentLength = data.contentLength;91    });92  }93  _createClass(PDFWorkerStreamReader, [{94    key: "read",95    value: function () {96      var _read = _asyncToGenerator(97      /*#__PURE__*/98      _regenerator["default"].mark(function _callee() {99        var _ref, value, done;100        return _regenerator["default"].wrap(function _callee$(_context) {101          while (1) {102            switch (_context.prev = _context.next) {103              case 0:104                _context.next = 2;105                return this._reader.read();106              case 2:107                _ref = _context.sent;108                value = _ref.value;109                done = _ref.done;110                if (!done) {111                  _context.next = 7;112                  break;113                }114                return _context.abrupt("return", {115                  value: undefined,116                  done: true117                });118              case 7:119                return _context.abrupt("return", {120                  value: value.buffer,121                  done: false122                });123              case 8:124              case "end":125                return _context.stop();126            }127          }128        }, _callee, this);129      }));130      function read() {131        return _read.apply(this, arguments);132      }133      return read;134    }()135  }, {136    key: "cancel",137    value: function cancel(reason) {138      this._reader.cancel(reason);139    }140  }, {141    key: "headersReady",142    get: function get() {143      return this._headersReady;144    }145  }, {146    key: "contentLength",147    get: function get() {148      return this._contentLength;149    }150  }, {151    key: "isStreamingSupported",152    get: function get() {153      return this._isStreamingSupported;154    }155  }, {156    key: "isRangeSupported",157    get: function get() {158      return this._isRangeSupported;159    }160  }]);161  return PDFWorkerStreamReader;162}();163var PDFWorkerStreamRangeReader =164/*#__PURE__*/165function () {166  function PDFWorkerStreamRangeReader(begin, end, msgHandler) {167    _classCallCheck(this, PDFWorkerStreamRangeReader);168    this._msgHandler = msgHandler;169    this.onProgress = null;170    var readableStream = this._msgHandler.sendWithStream('GetRangeReader', {171      begin: begin,172      end: end173    });174    this._reader = readableStream.getReader();175  }176  _createClass(PDFWorkerStreamRangeReader, [{177    key: "read",178    value: function () {179      var _read2 = _asyncToGenerator(180      /*#__PURE__*/...

Using AI Code Generation

1var PDFWorkerStreamRangeReader = require('wptextextractor').PDFWorkerStreamRangeReader;2var pdf = new PDFWorkerStreamRangeReader('test.pdf', { start: 0, end: 100 });3pdf.getText().then(function (text) {4    console.log(text);5});6var PDFJSStreamRangeReader = require('wptextextractor').PDFJSStreamRangeReader;7var pdf = new PDFJSStreamRangeReader('test.pdf', { start: 0, end: 100 });8pdf.getText().then(function (text) {9    console.log(text);10});11var PDFJSStreamFullReader = require('wptextextractor').PDFJSStreamFullReader;12var pdf = new PDFJSStreamFullReader('test.pdf');13pdf.getText().then(function (text) {14    console.log(text);15});16var PDFJSBufferRangeReader = require('wptextextractor').PDFJSBufferRangeReader;17var fs = require('fs');18var pdf = new PDFJSBufferRangeReader(fs.readFileSync('test.pdf'), { start: 0, end: 100 });19pdf.getText().then(function (text) {20    console.log(text);21});22var PDFJSBufferFullReader = require('wptextextractor').PDFJSBufferFullReader;23var fs = require('fs');24var pdf = new PDFJSBufferFullReader(fs.readFileSync('test.pdf'));25pdf.getText().then(function (text) {26    console.log(text);27});28var PDFJSBufferRangeReader = require('wptextextractor').PDFJSBufferRangeReader;

Using AI Code Generation

1function test() {2  var worker = new Worker('pdf.worker.js');3  var pdfDoc = null;4  var pageNum = 1;5  var pageRendering = false;6  var pageNumPending = null;7  var scale = 1.5;8  var canvas = document.getElementById('the-canvas');9  var ctx = canvas.getContext('2d');10  var pdfjsLib = window['pdfjs-dist/build/pdf'];11  pdfjsLib.GlobalWorkerOptions.workerPort = worker;12  pdfjsLib.GlobalWorkerOptions.workerSrc = 'pdf.worker.js';13  function renderPage(num) {14    pageRendering = true;15    pdfDoc.getPage(num).then(function(page) {16      var viewport = page.getViewport(scale);17      canvas.height = viewport.height;18      canvas.width = viewport.width;19      var renderContext = {20      };21      var renderTask = page.render(renderContext);22      renderTask.promise.then(function() {23        pageRendering = false;24        if (pageNumPending !== null) {25          renderPage(pageNumPending);26          pageNumPending = null;27        }28      });29    });30  }31  function queueRenderPage(num) {32    if (pageRendering) {33      pageNumPending = num;34    } else {35      renderPage(num);36    }37  }38  function onPrevPage() {39    if (pageNum <= 1) {40      return;41    }42    pageNum--;43    queueRenderPage(pageNum);44  }45  function onNextPage() {46    if (pageNum >= pdfDoc.numPages) {47      return;48    }49    pageNum++;50    queueRenderPage(pageNum);51  }52  document.getElementById('prev').addEventListener('click', onPrevPage);53  document.getElementById('next').addEventListener('click', onNextPage);54  pdfjsLib.getDocument(pdfPath, null, null, null, {rangeChunkSize: 65536}).promise.then(function(pdfDoc_) {55    pdfDoc = pdfDoc_;56    document.getElementById('page_count').textContent = pdfDoc.numPages;57    renderPage(pageNum);58  });59}60test();

Using AI Code Generation

1var pdfWorkerStreamRangeReader = require('./wptextextractor').pdfWorkerStreamRangeReader;2var pdfPath = 'test.pdf';3var startByte = 0;4var endByte = 100000;5pdfWorkerStreamRangeReader(pdfPath, startByte, endByte, function(err, text) {6    if (err) {7        console.log(err);8    } else {9        console.log(text);10    }11});12var pdfWorkerStream = require('./wptextextractor').pdfWorkerStream;13var pdfPath = 'test.pdf';14pdfWorkerStream(pdfPath, function(err, text) {15    if (err) {16        console.log(err);17    } else {18        console.log(text);19    }20});21var pdfWorker = require('./wptextextractor').pdfWorker;22var pdfPath = 'test.pdf';23pdfWorker(pdfPath, function(err, text) {24    if (err) {25        console.log(err);26    } else {27        console.log(text);28    }29});30var pdfjs = require('./wptextextractor').pdfjs;31var pdfPath = 'test.pdf';32pdfjs(pdfPath, function(err, text) {33    if (err) {34        console.log(err);35    } else {36        console.log(text);37    }38});39var pdfjsRangeReader = require('./wptextextractor').pdfjsRangeReader;40var pdfPath = 'test.pdf';41var startByte = 0;42var endByte = 100000;43pdfjsRangeReader(pdfPath, startByte, endByte, function(err, text) {44    if (err) {45        console.log(err);46    } else {47        console.log(text);48    }49});

Using AI Code Generation

1import pdfjsLib from 'pdfjs-dist';2import PDFWorkerStreamRangeReader from 'pdfjs-dist/lib/display/api';3import { PDFJS } from 'pdfjs-dist';4import { PDFDocument } from 'pdf-lib';5const pdfWorker = new PDFWorkerStreamRangeReader();6  .then(function(pdf) {7    console.log('PDF loaded');8    pdf.getPage(1).then(function(page) {9      console.log('Page loaded');10      var scale = 1.5;11      var viewport = page.getViewport({ scale: scale, });12      var canvas = document.getElementById('the-canvas');13      var context = canvas.getContext('2d');14      canvas.height = viewport.height;15      canvas.width = viewport.width;16      var renderContext = {17      };18      page.render(renderContext).promise.then(function() {19        console.log('Page rendered');20      });21    });22  }, function (reason) {23    console.error(reason);24  });

Using AI Code Generation

1var fs = require('fs');2var wptextextractor = require('wptextextractor');3var PDFWorkerStreamRangeReader = wptextextractor.PDFWorkerStreamRangeReader;4var PDF_FILE = 'test.pdf';5var OUTPUT_FILE = 'output.txt';6var pdfReader = new PDFWorkerStreamRangeReader(PDF_FILE, MAX_CHUNK_SIZE);7var outputStream = fs.createWriteStream(OUTPUT_FILE);8pdfReader.on('data', function (data) {9    console.log('data', data);10    outputStream.write(data);11});12pdfReader.on('end', function () {13    outputStream.end();14    console.log('end');15});16pdfReader.on('error', function (err) {17    console.log('error', err);18});19pdfReader.start();

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