How to use PDFNodeStreamFsFullReader method in wpt

Best JavaScript code snippet using wpt

node_stream.js

Source:node_stream.js Github

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...49 _createClass(PDFNodeStream, [{50 key: 'getFullReader',51 value: function getFullReader() {52 (0, _util.assert)(!this._fullRequest);53 this._fullRequest = this.isFsUrl ? new PDFNodeStreamFsFullReader(this) : new PDFNodeStreamFullReader(this);54 return this._fullRequest;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) {355 _this6._setReadableStream(response);356 });357 } else {358 _this6._request = https.request(createRequestOptions(_this6._url, _this6._httpHeaders), function (response) {359 _this6._setReadableStream(response);360 });361 }362 _this6._request.on('error', function (reason) {363 _this6._errored = true;364 _this6._reason = reason;365 });366 _this6._request.end();367 return _this6;368 }369 return PDFNodeStreamRangeReader;370}(BaseRangeReader);371var PDFNodeStreamFsFullReader = function (_BaseFullReader2) {372 _inherits(PDFNodeStreamFsFullReader, _BaseFullReader2);373 function PDFNodeStreamFsFullReader(stream) {374 _classCallCheck(this, PDFNodeStreamFsFullReader);375 var _this7 = _possibleConstructorReturn(this, (PDFNodeStreamFsFullReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamFsFullReader)).call(this, stream));376 var path = decodeURIComponent(_this7._url.path);377 if (fileUriRegex.test(_this7._url.href)) {378 path = path.replace(/^\//, '');379 }380 fs.lstat(path, function (error, stat) {381 if (error) {382 _this7._errored = true;383 _this7._reason = error;384 _this7._headersCapability.reject(error);385 return;386 }387 _this7._contentLength = stat.size;...

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node_stream.d.ts

Source:node_stream.d.ts Github

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1export class PDFNodeStream {2 constructor(source: any);3 source: any;4 url: any;5 isHttp: boolean;6 isFsUrl: boolean;7 httpHeaders: any;8 _fullRequestReader: PDFNodeStreamFsFullReader | PDFNodeStreamFullReader | null;9 _rangeRequestReaders: any[];10 get _progressiveDataLength(): number;11 getFullReader(): PDFNodeStreamFsFullReader | PDFNodeStreamFullReader;12 getRangeReader(start: any, end: any): PDFNodeStreamFsRangeReader | PDFNodeStreamRangeReader | null;13 cancelAllRequests(reason: any): void;14}15declare class PDFNodeStreamFsFullReader extends BaseFullReader {16}17declare class PDFNodeStreamFullReader extends BaseFullReader {18 _request: any;19}20declare class PDFNodeStreamFsRangeReader extends BaseRangeReader {21 constructor(stream: any, start: any, end: any);22}23declare class PDFNodeStreamRangeReader extends BaseRangeReader {24 constructor(stream: any, start: any, end: any);25 _httpHeaders: {};26 _request: any;27}28declare class BaseFullReader {29 constructor(stream: any);30 _url: any;31 _done: boolean;32 _storedError: any;33 onProgress: any;34 _contentLength: any;35 _loaded: number;36 _filename: any;37 _disableRange: any;38 _rangeChunkSize: any;39 _isStreamingSupported: boolean;40 _isRangeSupported: boolean;41 _readableStream: any;42 _readCapability: import("../shared/util.d.ts").PromiseCapability;43 _headersCapability: import("../shared/util.d.ts").PromiseCapability;44 get headersReady(): Promise<any>;45 get filename(): any;46 get contentLength(): any;47 get isRangeSupported(): boolean;48 get isStreamingSupported(): boolean;49 read(): any;50 cancel(reason: any): void;51 _error(reason: any): void;52 _setReadableStream(readableStream: any): void;53}54declare class BaseRangeReader {55 constructor(stream: any);56 _url: any;57 _done: boolean;58 _storedError: any;59 onProgress: any;60 _loaded: number;61 _readableStream: any;62 _readCapability: import("../shared/util.d.ts").PromiseCapability;63 _isStreamingSupported: boolean;64 get isStreamingSupported(): boolean;65 read(): any;66 cancel(reason: any): void;67 _error(reason: any): void;68 _setReadableStream(readableStream: any): void;69}...

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Using AI Code Generation

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1var fs = require('fs');2var PDFNodeStreamFsFullReader = require('pdf2json/PDFNodeStreamFsFullReader');3var pdfParser = new PDFNodeStreamFsFullReader();4pdfParser.on("pdfParser_dataError", errData => console.error(errData.parserError) );5pdfParser.on("pdfParser_dataReady", pdfData => {6 fs.writeFile("./pdf2json/test/F1040EZ.json", JSON.stringify(pdfData));7});8pdfParser.loadPDF("./pdf2json/test/F1040EZ.pdf");9var fs = require('fs');10var PDFNodeStreamFullReader = require('pdf2json/PDFNodeStreamFullReader');11var pdfParser = new PDFNodeStreamFullReader();12pdfParser.on("pdfParser_dataError", errData => console.error(errData.parserError) );13pdfParser.on("pdfParser_dataReady", pdfData => {14 fs.writeFile("./pdf2json/test/F1040EZ.json", JSON.stringify(pdfData));15});16pdfParser.loadPDF("./pdf2json/test/F1040EZ.pdf");17var fs = require('fs');18var PDFNodeStreamSimpleReader = require('pdf2json/PDFNodeStreamSimpleReader');19var pdfParser = new PDFNodeStreamSimpleReader();20pdfParser.on("pdfParser_dataError", errData => console.error(errData.parserError) );21pdfParser.on("pdfParser_dataReady", pdfData => {22 fs.writeFile("./pdf2json/test/F1040EZ.json", JSON.stringify(pdfData));23});24pdfParser.loadPDF("./pdf2json/test/F1040EZ.pdf");25var fs = require('fs');26var PDFParser = require('pdf2json/PDFParser');27var pdfParser = new PDFParser();28pdfParser.on("pdfParser_dataError", errData => console.error(errData.parserError) );29pdfParser.on("pdfParser_dataReady", pdfData => {30 fs.writeFile("./pdf2json/test/F1040EZ.json", JSON.stringify(pdfData));31});32pdfParser.loadPDF("./pdf2json/test/F1040EZ.pdf");

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Using AI Code Generation

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1var fs = require('fs');2var PDFNodeStreamFsFullReader = require('pdf.js-dist/lib/display/api').PDFNodeStreamFsFullReader;3var PDFJS = require('pdf.js-dist');4var pdfPath = 'test.pdf';5var pdfDoc = null;6var pageNum = 1;7var pageRendering = false;8var pageNumPending = null;9var scale = 1.5;10var canvas = document.getElementById('the-canvas');11var ctx = canvas.getContext('2d');12function renderPage(num) {13 pageRendering = true;14 pdfDoc.getPage(num).then(function(page) {15 var viewport = page.getViewport(scale);16 canvas.height = viewport.height;17 canvas.width = viewport.width;18 var renderContext = {19 };20 var renderTask = page.render(renderContext);21 renderTask.promise.then(function() {22 pageRendering = false;23 if (pageNumPending !== null) {24 renderPage(pageNumPending);25 pageNumPending = null;26 }27 });28 });29 document.getElementById('page_num').textContent = num;30}31function queueRenderPage(num) {32 if (pageRendering) {33 pageNumPending = num;34 } else {35 renderPage(num);36 }37}38function onPrevPage() {39 if (pageNum <= 1) {40 return;41 }42 pageNum--;43 queueRenderPage(pageNum);44}45function onNextPage() {46 if (pageNum >= pdfDoc.numPages) {47 return;48 }49 pageNum++;50 queueRenderPage(pageNum);51}52function onZoomIn() {53 scale += 0.5;54 renderPage(pageNum);55}56function onZoomOut() {57 scale -= 0.5;58 renderPage(pageNum);59}60PDFJS.getDocument(pdfPath).then(function(pdfDoc_) {61 pdfDoc = pdfDoc_;62 document.getElementById('page_count').textContent = pdfDoc.numPages;63 renderPage(pageNum);64});65document.getElementById('prev').addEventListener('click', onPrevPage);66document.getElementById('next').addEventListener('click', onNextPage);67document.getElementById('zoomin').addEventListener('click', onZoomIn);

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Using AI Code Generation

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1const PDFNodeStreamFsFullReader = require('pdfjs-dist/lib/display/api').PDFNodeStreamFsFullReader;2const PDFJS = require('pdfjs-dist');3const fs = require('fs');4const pdfPath = './test.pdf';5const pdfDoc = null;6const pageNum = 1;7let page = null;8const scale = 1.5;9let viewport = null;10let pdfPage = null;11let canvas = null;12let canvasContext = null;13let renderContext = null;14let renderTask = null;15let pdf = null;16pdf = PDFJS.getDocument(pdfPath);17pdf.then(function(pdf) {18 pdf.getPage(pageNum).then(function(page) {19 viewport = page.getViewport(scale);20 canvas = document.getElementById('the-canvas');21 canvas.height = viewport.height;22 canvas.width = viewport.width;23 canvasContext = canvas.getContext('2d');24 renderContext = {25 };26 renderTask = page.render(renderContext);27 renderTask.promise.then(function() {28 console.log('Page rendered');29 });30 });31});32const PDFNodeStreamFsFullReader = require('pdfjs-dist/lib/display/api').PDFNodeStreamFsFullReader;33const PDFJS = require('pdfjs-dist');34const fs = require('fs');35const pdfPath = './test.pdf';36const pdfDoc = null;37const pageNum = 1;38let page = null;39const scale = 1.5;40let viewport = null;41let pdfPage = null;42let canvas = null;43let canvasContext = null;44let renderContext = null;45let renderTask = null;46let pdf = null;47pdf = PDFJS.getDocument(pdfPath);48pdf.then(function(pdf) {49 pdf.getPage(pageNum).then(function(page) {50 viewport = page.getViewport(scale);51 canvas = document.getElementById('the-canvas');

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Using AI Code Generation

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1var wptools = require('wptools');2var pdf = require('pdf-parse');3var fs = require('fs');4var options = {5};6 console.log(doc);7});

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Using AI Code Generation

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1var fs = require('fs');2var PDFNodeStreamFsFullReader = require('pdf.js-dist/lib/core/document.js').PDFNodeStreamFsFullReader;3var PDFJS = require('pdf.js-dist');4var file = fs.readFileSync('test.pdf');5PDFJS.getDocument(new PDFNodeStreamFsFullReader(file)).then(function(doc) {6 var numPages = doc.numPages;7 console.log('# Document Loaded');8 console.log('Number of Pages: ' + numPages);9 console.log();10 return doc.getPage(1).then(function(page) {11 console.log('# Page 1');12 var viewport = page.getViewport(1.0);13 console.log('Size: ' + viewport.width + 'x' + viewport.height);14 console.log();15 return page.getTextContent().then(function(content) {16 var strings = content.items.map(function (item) {17 return item.str;18 });19 console.log('## Text Content');20 console.log(strings.join(''));21 });22 });23});

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