Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More

How to use PDFNodeStreamRangeReader method in wpt

Best JavaScript code snippet using wpt

node_stream.js

Source:node_stream.js

...55    }56  }, {57    key: 'getRangeReader',58    value: function getRangeReader(start, end) {59      var rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);60      this._rangeRequestReaders.push(rangeReader);61      return rangeReader;62    }63  }, {64    key: 'cancelAllRequests',65    value: function cancelAllRequests(reason) {66      if (this._fullRequest) {67        this._fullRequest.cancel(reason);68      }69      var readers = this._rangeRequestReaders.slice(0);70      readers.forEach(function (reader) {71        reader.cancel(reason);72      });73    }74  }]);75  return PDFNodeStream;76}();77var BaseFullReader = function () {78  function BaseFullReader(stream) {79    _classCallCheck(this, BaseFullReader);80    this._url = stream.url;81    this._done = false;82    this._errored = false;83    this._reason = null;84    this.onProgress = null;85    var source = stream.source;86    this._contentLength = source.length;87    this._loaded = 0;88    this._filename = null;89    this._disableRange = source.disableRange || false;90    this._rangeChunkSize = source.rangeChunkSize;91    if (!this._rangeChunkSize && !this._disableRange) {92      this._disableRange = true;93    }94    this._isStreamingSupported = !source.disableStream;95    this._isRangeSupported = !source.disableRange;96    this._readableStream = null;97    this._readCapability = (0, _util.createPromiseCapability)();98    this._headersCapability = (0, _util.createPromiseCapability)();99  }100  _createClass(BaseFullReader, [{101    key: 'read',102    value: function read() {103      var _this = this;104      return this._readCapability.promise.then(function () {105        if (_this._done) {106          return Promise.resolve({107            value: undefined,108            done: true109          });110        }111        if (_this._errored) {112          return Promise.reject(_this._reason);113        }114        var chunk = _this._readableStream.read();115        if (chunk === null) {116          _this._readCapability = (0, _util.createPromiseCapability)();117          return _this.read();118        }119        _this._loaded += chunk.length;120        if (_this.onProgress) {121          _this.onProgress({122            loaded: _this._loaded,123            total: _this._contentLength124          });125        }126        var buffer = new Uint8Array(chunk).buffer;127        return Promise.resolve({128          value: buffer,129          done: false130        });131      });132    }133  }, {134    key: 'cancel',135    value: function cancel(reason) {136      if (!this._readableStream) {137        this._error(reason);138        return;139      }140      this._readableStream.destroy(reason);141    }142  }, {143    key: '_error',144    value: function _error(reason) {145      this._errored = true;146      this._reason = reason;147      this._readCapability.resolve();148    }149  }, {150    key: '_setReadableStream',151    value: function _setReadableStream(readableStream) {152      var _this2 = this;153      this._readableStream = readableStream;154      readableStream.on('readable', function () {155        _this2._readCapability.resolve();156      });157      readableStream.on('end', function () {158        readableStream.destroy();159        _this2._done = true;160        _this2._readCapability.resolve();161      });162      readableStream.on('error', function (reason) {163        _this2._error(reason);164      });165      if (!this._isStreamingSupported && this._isRangeSupported) {166        this._error(new _util.AbortException('streaming is disabled'));167      }168      if (this._errored) {169        this._readableStream.destroy(this._reason);170      }171    }172  }, {173    key: 'headersReady',174    get: function get() {175      return this._headersCapability.promise;176    }177  }, {178    key: 'filename',179    get: function get() {180      return this._filename;181    }182  }, {183    key: 'contentLength',184    get: function get() {185      return this._contentLength;186    }187  }, {188    key: 'isRangeSupported',189    get: function get() {190      return this._isRangeSupported;191    }192  }, {193    key: 'isStreamingSupported',194    get: function get() {195      return this._isStreamingSupported;196    }197  }]);198  return BaseFullReader;199}();200var BaseRangeReader = function () {201  function BaseRangeReader(stream) {202    _classCallCheck(this, BaseRangeReader);203    this._url = stream.url;204    this._done = false;205    this._errored = false;206    this._reason = null;207    this.onProgress = null;208    this._loaded = 0;209    this._readableStream = null;210    this._readCapability = (0, _util.createPromiseCapability)();211    var source = stream.source;212    this._isStreamingSupported = !source.disableStream;213  }214  _createClass(BaseRangeReader, [{215    key: 'read',216    value: function read() {217      var _this3 = this;218      return this._readCapability.promise.then(function () {219        if (_this3._done) {220          return Promise.resolve({221            value: undefined,222            done: true223          });224        }225        if (_this3._errored) {226          return Promise.reject(_this3._reason);227        }228        var chunk = _this3._readableStream.read();229        if (chunk === null) {230          _this3._readCapability = (0, _util.createPromiseCapability)();231          return _this3.read();232        }233        _this3._loaded += chunk.length;234        if (_this3.onProgress) {235          _this3.onProgress({ loaded: _this3._loaded });236        }237        var buffer = new Uint8Array(chunk).buffer;238        return Promise.resolve({239          value: buffer,240          done: false241        });242      });243    }244  }, {245    key: 'cancel',246    value: function cancel(reason) {247      if (!this._readableStream) {248        this._error(reason);249        return;250      }251      this._readableStream.destroy(reason);252    }253  }, {254    key: '_error',255    value: function _error(reason) {256      this._errored = true;257      this._reason = reason;258      this._readCapability.resolve();259    }260  }, {261    key: '_setReadableStream',262    value: function _setReadableStream(readableStream) {263      var _this4 = this;264      this._readableStream = readableStream;265      readableStream.on('readable', function () {266        _this4._readCapability.resolve();267      });268      readableStream.on('end', function () {269        readableStream.destroy();270        _this4._done = true;271        _this4._readCapability.resolve();272      });273      readableStream.on('error', function (reason) {274        _this4._error(reason);275      });276      if (this._errored) {277        this._readableStream.destroy(this._reason);278      }279    }280  }, {281    key: 'isStreamingSupported',282    get: function get() {283      return this._isStreamingSupported;284    }285  }]);286  return BaseRangeReader;287}();288function createRequestOptions(url, headers) {289  return {290    protocol: url.protocol,291    auth: url.auth,292    host: url.hostname,293    port: url.port,294    path: url.path,295    method: 'GET',296    headers: headers297  };298}299var PDFNodeStreamFullReader = function (_BaseFullReader) {300  _inherits(PDFNodeStreamFullReader, _BaseFullReader);301  function PDFNodeStreamFullReader(stream) {302    _classCallCheck(this, PDFNodeStreamFullReader);303    var _this5 = _possibleConstructorReturn(this, (PDFNodeStreamFullReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamFullReader)).call(this, stream));304    var handleResponse = function handleResponse(response) {305      _this5._headersCapability.resolve();306      _this5._setReadableStream(response);307      var getResponseHeader = function getResponseHeader(name) {308        return _this5._readableStream.headers[name.toLowerCase()];309      };310      var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({311        getResponseHeader: getResponseHeader,312        isHttp: stream.isHttp,313        rangeChunkSize: _this5._rangeChunkSize,314        disableRange: _this5._disableRange315      }),316          allowRangeRequests = _validateRangeRequest.allowRangeRequests,317          suggestedLength = _validateRangeRequest.suggestedLength;318      _this5._isRangeSupported = allowRangeRequests;319      _this5._contentLength = suggestedLength || _this5._contentLength;320      _this5._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);321    };322    _this5._request = null;323    if (_this5._url.protocol === 'http:') {324      _this5._request = http.request(createRequestOptions(_this5._url, stream.httpHeaders), handleResponse);325    } else {326      _this5._request = https.request(createRequestOptions(_this5._url, stream.httpHeaders), handleResponse);327    }328    _this5._request.on('error', function (reason) {329      _this5._errored = true;330      _this5._reason = reason;331      _this5._headersCapability.reject(reason);332    });333    _this5._request.end();334    return _this5;335  }336  return PDFNodeStreamFullReader;337}(BaseFullReader);338var PDFNodeStreamRangeReader = function (_BaseRangeReader) {339  _inherits(PDFNodeStreamRangeReader, _BaseRangeReader);340  function PDFNodeStreamRangeReader(stream, start, end) {341    _classCallCheck(this, PDFNodeStreamRangeReader);342    var _this6 = _possibleConstructorReturn(this, (PDFNodeStreamRangeReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamRangeReader)).call(this, stream));343    _this6._httpHeaders = {};344    for (var property in stream.httpHeaders) {345      var value = stream.httpHeaders[property];346      if (typeof value === 'undefined') {347        continue;348      }349      _this6._httpHeaders[property] = value;350    }351    _this6._httpHeaders['Range'] = 'bytes=' + start + '-' + (end - 1);352    _this6._request = null;353    if (_this6._url.protocol === 'http:') {354      _this6._request = http.request(createRequestOptions(_this6._url, _this6._httpHeaders), function (response) {...

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;2var PDFTextExtractor = require('wptextextractor').PDFTextExtractor;3var pdfTextExtractor = new PDFTextExtractor();4pdfTextExtractor.extract('test.pdf', new PDFNodeStreamRangeReader(), function(err, text) {5    console.log(text);6});7I'm not sure if I understand your question correctly. You are trying to use the PDFNodeStreamRangeReader in a project that is not a node project? Or are you trying to use it in a node project that is not using node package manager (npm)?

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;2var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');3pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {4    console.log(data);5});6var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;7var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');8pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {9    console.log(data);10});11var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;12var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');13pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {14    console.log(data);15});16var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;17var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');18pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {19    console.log(data);20});21var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;22var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');23pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {24    console.log(data);25});26var PDFNodeStreamRangeReader = require('wptextextractor').PDFNodeStreamRangeReader;27var pdfNodeStreamRangeReader = new PDFNodeStreamRangeReader('test.pdf');28pdfNodeStreamRangeReader.readRange(0, 100, function(err, data) {29    console.log(data);30});

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('pdfjs-dist/lib/display/node_stream_range_reader.js').PDFNodeStreamRangeReader;2var PDFJS = require('pdfjs-dist');3PDFJS.PDFJS.disableWorker = true;4var fs = require('fs');5var pdf = fs.readFileSync('test.pdf');6var pdfStream = new PDFNodeStreamRangeReader({7});8PDFJS.getDocument(pdfStream).then(function (pdf) {9  console.log('PDF loaded');10  pdf.getPage(1).then(function (page) {11    console.log('Page loaded');12    var scale = 1.5;13    var viewport = page.getViewport(scale);14    console.log('Page width: ' + viewport.width);15    console.log('Page height: ' + viewport.height);16  });17});

Using AI Code Generation

1var PDFNodeStreamRangeReader = require('pdfjs-dist/lib/display/node_stream_range_reader.js');2var PDFJS = require('pdfjs-dist');3var pdf = null;4var loadingTask = PDFJS.getDocument(url);5loadingTask.promise.then(function (pdfDocument) {6  pdf = pdfDocument;7  return pdf.getPage(1);8}).then(function (page) {9  var viewport = page.getViewport(1.0);10  var canvas = document.createElement('canvas');11  var context = canvas.getContext('2d');12  canvas.height = viewport.height;13  canvas.width = viewport.width;14  var renderContext = {15  };16  var renderTask = page.render(renderContext);17  return renderTask.promise;18}).then(function () {19  console.log('Page rendered');20});21PDFJS.GlobalWorkerOptions.workerSrc = 'node_modules/pdfjs-dist/build/pdf.worker.js';22'use strict';23var _util = require('../shared/util');24var _network_utils = require('./network_utils');25var _stream = require('./stream');26var _display_utils = require('./display_utils');27var PDFNodeStreamRangeReader = function () {28  function PDFNodeStreamRangeReader(_ref) {29        rangeChunkSize = _ref.rangeChunkSize;30    (0, _util.assert)(url instanceof _network_utils.URL, 'PDFNodeStreamRangeReader can only read from network URLs.');31    this._url = url;32    this._rangeChunkSize = rangeChunkSize;33    this._fullRequestReader = null;34    this._rangeRequestReaders = [];35  }36  PDFNodeStreamRangeReader.prototype = {37    _onRangeRequestReaderClosed: function PDFNodeStreamRangeReader_onRangeRequestReaderClosed(reader) {38      var i = this._rangeRequestReaders.indexOf(reader);39      if (i >= 0) {40        this._rangeRequestReaders.splice(i, 1);41      }42    },43    get headersReady() {44      return this._fullRequestReader ? this._fullRequestReader.headersReady : Promise.reject(new Error('Reader is not initialized yet.'));45    },46    get contentLength() {

Using AI Code Generation

1var fs = require('fs');2var PDFNodeStreamRangeReader = require('wptext').PDFNodeStreamRangeReader;3var PDFParser = require('wptext').PDFParser;4var PDFText = require('wptext').PDFText;5var PDFTextStream = require('wptext').PDFTextStream;6var PDFTextItem = require('wptext').PDFTextItem;7var PDFTextChar = require('wptext').PDFTextChar;8var PDFTextWord = require('wptext').PDFTextWord;9var PDFTextLine = require('wptext').PDFTextLine;10var PDFTextBlock = require('wptext').PDFTextBlock;11var PDFTextParagraph = require('wptext').PDFTextParagraph;12var PDFTextPage = require('wptext').PDFTextPage;13var PDFTextDocument = require('wptext').PDFTextDocument;14var PDFTextStripper = require('wptext').PDFTextStripper;15var PDFTextStripperByArea = require('wptext').PDFTextStripperByArea;16var PDFText2XML = require('wptext').PDFText2XML;17var PDFText2HTML = require('wptext').PDFText2HTML;18var PDFText2SVG = require('wptext').PDFText2SVG;19var PDFText2XHTML = require('wptext').PDFText2XHTML;20var PDFText2XHTMLImageHandler = require('wptext').PDFText2XHTMLImageHandler;21var PDFText2XHTMLImageHandlerBase64 = require('wptext').PDFText2XHTMLImageHandlerBase64;22var PDFText2XHTMLImageHandlerURI = require('wptext').PDFText2XHTMLImageHandlerURI;23var textStripper = new PDFTextStripper();24var text2xml = new PDFText2XML();25var text2html = new PDFText2HTML();26var text2xhtml = new PDFText2XHTML();27var text2svg = new PDFText2SVG();28var pdfParser = new PDFParser();29pdfParser.on("pdfParser_dataError", errData => console.error(errData.parserError) );30pdfParser.on("pdfParser_dataReady", pdfData => {31    var pdfText = new PDFText();32    pdfText.loadPDF(pdfData);

Using AI Code Generation

1var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";2var textExtractor = require("wptextextractor");3textExtractor.pdfToText(pdfPath, function(err, text) {4    console.log(text);5});6var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";7var textExtractor = require("wptextextractor");8textExtractor.pdfToText(pdfPath, function(err, text) {9    console.log(text);10}, {11});12var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";13var textExtractor = require("wptextextractor");14textExtractor.pdfToText(pdfPath, function(err, text) {15    console.log(text);16}, {17    imageProcessFunction: function(image, callback) {18        callback(null, image);19    }20});21var pdfPath = "C:/Users/.../Desktop/.../sample.pdf";22var textExtractor = require("wptextextractor");23textExtractor.pdfToText(pdfPath, function(err, text) {24    console.log(text);25}, {26    imageProcessFunction: function(image, callback) {27        callback(null, image);28    },29    imageProcessFunction: function(image, callback) {30        callback(null, image);31    }32});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.