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How to use PDFDataTransportStreamRangeReader method in wpt

Best JavaScript code snippet using wpt

transport_stream.js

Source:transport_stream.js

...144    value: function getRangeReader(begin, end) {145      if (end <= this._progressiveDataLength) {146        return null;147      }148      var reader = new PDFDataTransportStreamRangeReader(this, begin, end);149      this._pdfDataRangeTransport.requestDataRange(begin, end);150      this._rangeReaders.push(reader);151      return reader;152    }153  }, {154    key: "cancelAllRequests",155    value: function cancelAllRequests(reason) {156      if (this._fullRequestReader) {157        this._fullRequestReader.cancel(reason);158      }159      var readers = this._rangeReaders.slice(0);160      readers.forEach(function (rangeReader) {161        rangeReader.cancel(reason);162      });163      this._pdfDataRangeTransport.abort();164    }165  }, {166    key: "_progressiveDataLength",167    get: function get() {168      return this._fullRequestReader ? this._fullRequestReader._loaded : 0;169    }170  }]);171  return PDFDataTransportStream;172}();173exports.PDFDataTransportStream = PDFDataTransportStream;174var PDFDataTransportStreamReader =175/*#__PURE__*/176function () {177  function PDFDataTransportStreamReader(stream, queuedChunks) {178    var progressiveDone = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;179    _classCallCheck(this, PDFDataTransportStreamReader);180    this._stream = stream;181    this._done = progressiveDone || false;182    this._filename = null;183    this._queuedChunks = queuedChunks || [];184    this._loaded = 0;185    var _iteratorNormalCompletion = true;186    var _didIteratorError = false;187    var _iteratorError = undefined;188    try {189      for (var _iterator = this._queuedChunks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {190        var chunk = _step.value;191        this._loaded += chunk.byteLength;192      }193    } catch (err) {194      _didIteratorError = true;195      _iteratorError = err;196    } finally {197      try {198        if (!_iteratorNormalCompletion && _iterator["return"] != null) {199          _iterator["return"]();200        }201      } finally {202        if (_didIteratorError) {203          throw _iteratorError;204        }205      }206    }207    this._requests = [];208    this._headersReady = Promise.resolve();209    stream._fullRequestReader = this;210    this.onProgress = null;211  }212  _createClass(PDFDataTransportStreamReader, [{213    key: "_enqueue",214    value: function _enqueue(chunk) {215      if (this._done) {216        return;217      }218      if (this._requests.length > 0) {219        var requestCapability = this._requests.shift();220        requestCapability.resolve({221          value: chunk,222          done: false223        });224      } else {225        this._queuedChunks.push(chunk);226      }227      this._loaded += chunk.byteLength;228    }229  }, {230    key: "read",231    value: function () {232      var _read = _asyncToGenerator(233      /*#__PURE__*/234      _regenerator["default"].mark(function _callee() {235        var chunk, requestCapability;236        return _regenerator["default"].wrap(function _callee$(_context) {237          while (1) {238            switch (_context.prev = _context.next) {239              case 0:240                if (!(this._queuedChunks.length > 0)) {241                  _context.next = 3;242                  break;243                }244                chunk = this._queuedChunks.shift();245                return _context.abrupt("return", {246                  value: chunk,247                  done: false248                });249              case 3:250                if (!this._done) {251                  _context.next = 5;252                  break;253                }254                return _context.abrupt("return", {255                  value: undefined,256                  done: true257                });258              case 5:259                requestCapability = (0, _util.createPromiseCapability)();260                this._requests.push(requestCapability);261                return _context.abrupt("return", requestCapability.promise);262              case 8:263              case "end":264                return _context.stop();265            }266          }267        }, _callee, this);268      }));269      function read() {270        return _read.apply(this, arguments);271      }272      return read;273    }()274  }, {275    key: "cancel",276    value: function cancel(reason) {277      this._done = true;278      this._requests.forEach(function (requestCapability) {279        requestCapability.resolve({280          value: undefined,281          done: true282        });283      });284      this._requests = [];285    }286  }, {287    key: "progressiveDone",288    value: function progressiveDone() {289      if (this._done) {290        return;291      }292      this._done = true;293    }294  }, {295    key: "headersReady",296    get: function get() {297      return this._headersReady;298    }299  }, {300    key: "filename",301    get: function get() {302      return this._filename;303    }304  }, {305    key: "isRangeSupported",306    get: function get() {307      return this._stream._isRangeSupported;308    }309  }, {310    key: "isStreamingSupported",311    get: function get() {312      return this._stream._isStreamingSupported;313    }314  }, {315    key: "contentLength",316    get: function get() {317      return this._stream._contentLength;318    }319  }]);320  return PDFDataTransportStreamReader;321}();322var PDFDataTransportStreamRangeReader =323/*#__PURE__*/324function () {325  function PDFDataTransportStreamRangeReader(stream, begin, end) {326    _classCallCheck(this, PDFDataTransportStreamRangeReader);327    this._stream = stream;328    this._begin = begin;329    this._end = end;330    this._queuedChunk = null;331    this._requests = [];332    this._done = false;333    this.onProgress = null;334  }335  _createClass(PDFDataTransportStreamRangeReader, [{336    key: "_enqueue",337    value: function _enqueue(chunk) {338      if (this._done) {339        return;...

transport_stream.d.ts

Source:transport_stream.d.ts

1/** @implements {IPDFStream} */2export class PDFDataTransportStream implements IPDFStream {3    constructor(params: any, pdfDataRangeTransport: any);4    _queuedChunks: ArrayBuffer[];5    _progressiveDone: any;6    _contentDispositionFilename: any;7    _pdfDataRangeTransport: any;8    _isStreamingSupported: boolean;9    _isRangeSupported: boolean;10    _contentLength: any;11    _fullRequestReader: any;12    _rangeReaders: any[];13    _onReceiveData(args: any): void;14    get _progressiveDataLength(): any;15    _onProgress(evt: any): void;16    _onProgressiveDone(): void;17    _removeRangeReader(reader: any): void;18    getFullReader(): PDFDataTransportStreamReader;19    getRangeReader(begin: any, end: any): PDFDataTransportStreamRangeReader | null;20    cancelAllRequests(reason: any): void;21}22/** @implements {IPDFStreamReader} */23declare class PDFDataTransportStreamReader implements IPDFStreamReader {24    constructor(stream: any, queuedChunks: any, progressiveDone?: boolean, contentDispositionFilename?: null);25    _stream: any;26    _done: boolean;27    _filename: any;28    _queuedChunks: any;29    _loaded: number;30    _requests: any[];31    _headersReady: Promise<void>;32    onProgress: any;33    _enqueue(chunk: any): void;34    get headersReady(): Promise<void>;35    get filename(): any;36    get isRangeSupported(): any;37    get isStreamingSupported(): any;38    get contentLength(): any;39    read(): Promise<any>;40    cancel(reason: any): void;41    progressiveDone(): void;42}43/** @implements {IPDFStreamRangeReader} */44declare class PDFDataTransportStreamRangeReader implements IPDFStreamRangeReader {45    constructor(stream: any, begin: any, end: any);46    _stream: any;47    _begin: any;48    _end: any;49    _queuedChunk: any;50    _requests: any[];51    _done: boolean;52    onProgress: any;53    _enqueue(chunk: any): void;54    get isStreamingSupported(): boolean;55    read(): Promise<any>;56    cancel(reason: any): void;57}...

Using AI Code Generation

1var wptools = require('wptools');2reader.readRange(0, 1000, function(data) {3    console.log(data);4});5var wptools = require('wptools');6reader.readRange(0, 1000, function(data) {7    console.log(data);8});

Using AI Code Generation

1var wptools = require('wptools');2var PDFDataTransportStreamRangeReader = wptools.PDFDataTransportStreamRangeReader;3var PDFJS = require('pdfjs-dist');4var pdfData = new Uint8Array(fs.readFileSync('test.pdf'));5var pdfDataRangeTransport = new PDFDataTransportStreamRangeReader(pdfData);6PDFJS.getDocument(pdfDataRangeTransport).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);12        var canvas = document.createElement('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).then(function () {19            console.log('Page rendered');20        });21    });22});

Using AI Code Generation

1var wptextselection = require('wptextselection');2var fs = require('fs');3var PDFDataTransportStreamRangeReader = wptextselection.PDFDataTransportStreamRangeReader;4var data = fs.readFileSync('test.pdf');5var reader = new PDFDataTransportStreamRangeReader(data);6var text = reader.getText();7console.log(text);

Using AI Code Generation

1var wptextextractor = require('wptextextractor');2var fs = require('fs');3var pdfFile = fs.readFileSync('test.pdf');4var pdfData = new Uint8Array(pdfFile);5var pdfDataTransportStreamRangeReader = new wptextextractor.PDFDataTransportStreamRangeReader(pdfData);6var pdf = new wptextextractor.PDFDocument(pdfDataTransportStreamRangeReader);7var pageNumber = 1;8var page = pdf.getPage(pageNumber);9var text = page.getTextContent();10console.log(text);11var wptextextractor = require('wptextextractor');12var fs = require('fs');13var pdfFile = fs.readFileSync('test.pdf');14var pdfData = new Uint8Array(pdfFile);15var pdfDataTransportStreamRangeReader = new wptextextractor.PDFDataTransportStreamRangeReader(pdfData);16var pdf = new wptextextractor.PDFDocument(pdfDataTransportStreamRangeReader);17var pageNumber = 1;18var page = pdf.getPage(pageNumber);19var text = page.getTextContent();20console.log(text);

Using AI Code Generation

1var PDFDataTransportStreamRangeReader = require('wptools').PDFDataTransportStreamRangeReader;2var fs = require('fs');3var filePath = 'C:\\Users\\Public\\Documents\\test.pdf';4var start = 10;5var end = 20;6var reader = new PDFDataTransportStreamRangeReader(filePath, start, end);7reader.read(function(err, buffer) {8	if(err) {9		console.log(err);10		return;11	}12	console.log(buffer);13});

Using AI Code Generation

1var streamRangeReader = new PDFDataTransportStreamRangeReader();2var stream = new PDFDataTransportStream();3stream.open("sample.pdf");4streamRangeReader.read(stream, 0, 1000);5var rangeBytes = streamRangeReader.getRangeBytes();6stream.close();7for (var i = 0; i < rangeBytes.length; i++)8{9    console.println(rangeBytes[i]);10}11streamRangeReader.close();12streamRangeReader.close();13stream.close();14streamRangeReader.close();15var streamRangeReader = new PDFDataTransportStreamRangeReader();16var stream = new PDFDataTransportStream();17stream.open("sample.pdf");18streamRangeReader.read(stream, 0, 1000);19var rangeBytes = streamRangeReader.getRangeBytes();

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