- /* Copyright 2012 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.
- */
-
-import './compatibility';
-import { ReadableStream } from '../../external/streams/streams-lib';
-
-var globalScope =
- (typeof window !== 'undefined' && window.Math === Math) ? window :
- // eslint-disable-next-line no-undef
- (typeof global !== 'undefined' && global.Math === Math) ? global :
- (typeof self !== 'undefined' && self.Math === Math) ? self : this;
-
-var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
-
-const NativeImageDecoding = {
- NONE: 'none',
- DECODE: 'decode',
- DISPLAY: 'display',
-};
-
-var TextRenderingMode = {
- FILL: 0,
- STROKE: 1,
- FILL_STROKE: 2,
- INVISIBLE: 3,
- FILL_ADD_TO_PATH: 4,
- STROKE_ADD_TO_PATH: 5,
- FILL_STROKE_ADD_TO_PATH: 6,
- ADD_TO_PATH: 7,
- FILL_STROKE_MASK: 3,
- ADD_TO_PATH_FLAG: 4,
-};
-
-var ImageKind = {
- GRAYSCALE_1BPP: 1,
- RGB_24BPP: 2,
- RGBA_32BPP: 3,
-};
-
-var AnnotationType = {
- TEXT: 1,
- LINK: 2,
- FREETEXT: 3,
- LINE: 4,
- SQUARE: 5,
- CIRCLE: 6,
- POLYGON: 7,
- POLYLINE: 8,
- HIGHLIGHT: 9,
- UNDERLINE: 10,
- SQUIGGLY: 11,
- STRIKEOUT: 12,
- STAMP: 13,
- CARET: 14,
- INK: 15,
- POPUP: 16,
- FILEATTACHMENT: 17,
- SOUND: 18,
- MOVIE: 19,
- WIDGET: 20,
- SCREEN: 21,
- PRINTERMARK: 22,
- TRAPNET: 23,
- WATERMARK: 24,
- THREED: 25,
- REDACT: 26,
-};
-
-var AnnotationFlag = {
- INVISIBLE: 0x01,
- HIDDEN: 0x02,
- PRINT: 0x04,
- NOZOOM: 0x08,
- NOROTATE: 0x10,
- NOVIEW: 0x20,
- READONLY: 0x40,
- LOCKED: 0x80,
- TOGGLENOVIEW: 0x100,
- LOCKEDCONTENTS: 0x200,
-};
-
-var AnnotationFieldFlag = {
- READONLY: 0x0000001,
- REQUIRED: 0x0000002,
- NOEXPORT: 0x0000004,
- MULTILINE: 0x0001000,
- PASSWORD: 0x0002000,
- NOTOGGLETOOFF: 0x0004000,
- RADIO: 0x0008000,
- PUSHBUTTON: 0x0010000,
- COMBO: 0x0020000,
- EDIT: 0x0040000,
- SORT: 0x0080000,
- FILESELECT: 0x0100000,
- MULTISELECT: 0x0200000,
- DONOTSPELLCHECK: 0x0400000,
- DONOTSCROLL: 0x0800000,
- COMB: 0x1000000,
- RICHTEXT: 0x2000000,
- RADIOSINUNISON: 0x2000000,
- COMMITONSELCHANGE: 0x4000000,
-};
-
-var AnnotationBorderStyleType = {
- SOLID: 1,
- DASHED: 2,
- BEVELED: 3,
- INSET: 4,
- UNDERLINE: 5,
-};
-
-var StreamType = {
- UNKNOWN: 0,
- FLATE: 1,
- LZW: 2,
- DCT: 3,
- JPX: 4,
- JBIG: 5,
- A85: 6,
- AHX: 7,
- CCF: 8,
- RL: 9,
-};
-
-var FontType = {
- UNKNOWN: 0,
- TYPE1: 1,
- TYPE1C: 2,
- CIDFONTTYPE0: 3,
- CIDFONTTYPE0C: 4,
- TRUETYPE: 5,
- CIDFONTTYPE2: 6,
- TYPE3: 7,
- OPENTYPE: 8,
- TYPE0: 9,
- MMTYPE1: 10,
-};
-
-var VERBOSITY_LEVELS = {
- errors: 0,
- warnings: 1,
- infos: 5,
-};
-
-var CMapCompressionType = {
- NONE: 0,
- BINARY: 1,
- STREAM: 2,
-};
-
-// All the possible operations for an operator list.
-var OPS = {
- // Intentionally start from 1 so it is easy to spot bad operators that will be
- // 0's.
- dependency: 1,
- setLineWidth: 2,
- setLineCap: 3,
- setLineJoin: 4,
- setMiterLimit: 5,
- setDash: 6,
- setRenderingIntent: 7,
- setFlatness: 8,
- setGState: 9,
- save: 10,
- restore: 11,
- transform: 12,
- moveTo: 13,
- lineTo: 14,
- curveTo: 15,
- curveTo2: 16,
- curveTo3: 17,
- closePath: 18,
- rectangle: 19,
- stroke: 20,
- closeStroke: 21,
- fill: 22,
- eoFill: 23,
- fillStroke: 24,
- eoFillStroke: 25,
- closeFillStroke: 26,
- closeEOFillStroke: 27,
- endPath: 28,
- clip: 29,
- eoClip: 30,
- beginText: 31,
- endText: 32,
- setCharSpacing: 33,
- setWordSpacing: 34,
- setHScale: 35,
- setLeading: 36,
- setFont: 37,
- setTextRenderingMode: 38,
- setTextRise: 39,
- moveText: 40,
- setLeadingMoveText: 41,
- setTextMatrix: 42,
- nextLine: 43,
- showText: 44,
- showSpacedText: 45,
- nextLineShowText: 46,
- nextLineSetSpacingShowText: 47,
- setCharWidth: 48,
- setCharWidthAndBounds: 49,
- setStrokeColorSpace: 50,
- setFillColorSpace: 51,
- setStrokeColor: 52,
- setStrokeColorN: 53,
- setFillColor: 54,
- setFillColorN: 55,
- setStrokeGray: 56,
- setFillGray: 57,
- setStrokeRGBColor: 58,
- setFillRGBColor: 59,
- setStrokeCMYKColor: 60,
- setFillCMYKColor: 61,
- shadingFill: 62,
- beginInlineImage: 63,
- beginImageData: 64,
- endInlineImage: 65,
- paintXObject: 66,
- markPoint: 67,
- markPointProps: 68,
- beginMarkedContent: 69,
- beginMarkedContentProps: 70,
- endMarkedContent: 71,
- beginCompat: 72,
- endCompat: 73,
- paintFormXObjectBegin: 74,
- paintFormXObjectEnd: 75,
- beginGroup: 76,
- endGroup: 77,
- beginAnnotations: 78,
- endAnnotations: 79,
- beginAnnotation: 80,
- endAnnotation: 81,
- paintJpegXObject: 82,
- paintImageMaskXObject: 83,
- paintImageMaskXObjectGroup: 84,
- paintImageXObject: 85,
- paintInlineImageXObject: 86,
- paintInlineImageXObjectGroup: 87,
- paintImageXObjectRepeat: 88,
- paintImageMaskXObjectRepeat: 89,
- paintSolidColorImageMask: 90,
- constructPath: 91,
-};
-
-var verbosity = VERBOSITY_LEVELS.warnings;
-
-function setVerbosityLevel(level) {
- verbosity = level;
-}
-
-function getVerbosityLevel() {
- return verbosity;
-}
-
-// A notice for devs. These are good for things that are helpful to devs, such
-// as warning that Workers were disabled, which is important to devs but not
-// end users.
-function info(msg) {
- if (verbosity >= VERBOSITY_LEVELS.infos) {
- console.log('Info: ' + msg);
- }
-}
-
-// Non-fatal warnings.
-function warn(msg) {
- if (verbosity >= VERBOSITY_LEVELS.warnings) {
- console.log('Warning: ' + msg);
- }
-}
-
-// Deprecated API function -- display regardless of the PDFJS.verbosity setting.
-function deprecated(details) {
- console.log('Deprecated API usage: ' + details);
-}
-
-function unreachable(msg) {
- throw new Error(msg);
-}
-
-function assert(cond, msg) {
- if (!cond) {
- unreachable(msg);
- }
-}
-
-var UNSUPPORTED_FEATURES = {
- unknown: 'unknown',
- forms: 'forms',
- javaScript: 'javaScript',
- smask: 'smask',
- shadingPattern: 'shadingPattern',
- font: 'font',
-};
-
-// Checks if URLs have the same origin. For non-HTTP based URLs, returns false.
-function isSameOrigin(baseUrl, otherUrl) {
- try {
- var base = new URL(baseUrl);
- if (!base.origin || base.origin === 'null') {
- return false; // non-HTTP url
- }
- } catch (e) {
- return false;
- }
-
- var other = new URL(otherUrl, base);
- return base.origin === other.origin;
-}
-
-// Checks if URLs use one of the whitelisted protocols, e.g. to avoid XSS.
-function isValidProtocol(url) {
- if (!url) {
- return false;
- }
- switch (url.protocol) {
- case 'http:':
- case 'https:':
- case 'ftp:':
- case 'mailto:':
- case 'tel:':
- return true;
- default:
- return false;
- }
-}
-
-/**
- * Attempts to create a valid absolute URL (utilizing `isValidProtocol`).
- * @param {URL|string} url - An absolute, or relative, URL.
- * @param {URL|string} baseUrl - An absolute URL.
- * @returns Either a valid {URL}, or `null` otherwise.
- */
-function createValidAbsoluteUrl(url, baseUrl) {
- if (!url) {
- return null;
- }
- try {
- var absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);
- if (isValidProtocol(absoluteUrl)) {
- return absoluteUrl;
- }
- } catch (ex) { /* `new URL()` will throw on incorrect data. */ }
- return null;
-}
-
-function shadow(obj, prop, value) {
- Object.defineProperty(obj, prop, { value,
- enumerable: true,
- configurable: true,
- writable: false, });
- return value;
-}
-
-function getLookupTableFactory(initializer) {
- var lookup;
- return function () {
- if (initializer) {
- lookup = Object.create(null);
- initializer(lookup);
- initializer = null;
- }
- return lookup;
- };
-}
-
-var PasswordResponses = {
- NEED_PASSWORD: 1,
- INCORRECT_PASSWORD: 2,
-};
-
-var PasswordException = (function PasswordExceptionClosure() {
- function PasswordException(msg, code) {
- this.name = 'PasswordException';
- this.message = msg;
- this.code = code;
- }
-
- PasswordException.prototype = new Error();
- PasswordException.constructor = PasswordException;
-
- return PasswordException;
-})();
-
-var UnknownErrorException = (function UnknownErrorExceptionClosure() {
- function UnknownErrorException(msg, details) {
- this.name = 'UnknownErrorException';
- this.message = msg;
- this.details = details;
- }
-
- UnknownErrorException.prototype = new Error();
- UnknownErrorException.constructor = UnknownErrorException;
-
- return UnknownErrorException;
-})();
-
-var InvalidPDFException = (function InvalidPDFExceptionClosure() {
- function InvalidPDFException(msg) {
- this.name = 'InvalidPDFException';
- this.message = msg;
- }
-
- InvalidPDFException.prototype = new Error();
- InvalidPDFException.constructor = InvalidPDFException;
-
- return InvalidPDFException;
-})();
-
-var MissingPDFException = (function MissingPDFExceptionClosure() {
- function MissingPDFException(msg) {
- this.name = 'MissingPDFException';
- this.message = msg;
- }
-
- MissingPDFException.prototype = new Error();
- MissingPDFException.constructor = MissingPDFException;
-
- return MissingPDFException;
-})();
-
-var UnexpectedResponseException =
- (function UnexpectedResponseExceptionClosure() {
- function UnexpectedResponseException(msg, status) {
- this.name = 'UnexpectedResponseException';
- this.message = msg;
- this.status = status;
- }
-
- UnexpectedResponseException.prototype = new Error();
- UnexpectedResponseException.constructor = UnexpectedResponseException;
-
- return UnexpectedResponseException;
-})();
-
-var NotImplementedException = (function NotImplementedExceptionClosure() {
- function NotImplementedException(msg) {
- this.message = msg;
- }
-
- NotImplementedException.prototype = new Error();
- NotImplementedException.prototype.name = 'NotImplementedException';
- NotImplementedException.constructor = NotImplementedException;
-
- return NotImplementedException;
-})();
-
-var MissingDataException = (function MissingDataExceptionClosure() {
- function MissingDataException(begin, end) {
- this.begin = begin;
- this.end = end;
- this.message = 'Missing data [' + begin + ', ' + end + ')';
- }
-
- MissingDataException.prototype = new Error();
- MissingDataException.prototype.name = 'MissingDataException';
- MissingDataException.constructor = MissingDataException;
-
- return MissingDataException;
-})();
-
-var XRefParseException = (function XRefParseExceptionClosure() {
- function XRefParseException(msg) {
- this.message = msg;
- }
-
- XRefParseException.prototype = new Error();
- XRefParseException.prototype.name = 'XRefParseException';
- XRefParseException.constructor = XRefParseException;
-
- return XRefParseException;
-})();
-
-/**
- * Error caused during parsing PDF data.
- */
-let FormatError = (function FormatErrorClosure() {
- function FormatError(msg) {
- this.message = msg;
- }
-
- FormatError.prototype = new Error();
- FormatError.prototype.name = 'FormatError';
- FormatError.constructor = FormatError;
-
- return FormatError;
-})();
-
-var NullCharactersRegExp = /\x00/g;
-
-function removeNullCharacters(str) {
- if (typeof str !== 'string') {
- warn('The argument for removeNullCharacters must be a string.');
- return str;
- }
- return str.replace(NullCharactersRegExp, '');
-}
-
-function bytesToString(bytes) {
- assert(bytes !== null && typeof bytes === 'object' &&
- bytes.length !== undefined, 'Invalid argument for bytesToString');
- var length = bytes.length;
- var MAX_ARGUMENT_COUNT = 8192;
- if (length < MAX_ARGUMENT_COUNT) {
- return String.fromCharCode.apply(null, bytes);
- }
- var strBuf = [];
- for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
- var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
- var chunk = bytes.subarray(i, chunkEnd);
- strBuf.push(String.fromCharCode.apply(null, chunk));
- }
- return strBuf.join('');
-}
-
-function stringToBytes(str) {
- assert(typeof str === 'string', 'Invalid argument for stringToBytes');
- var length = str.length;
- var bytes = new Uint8Array(length);
- for (var i = 0; i < length; ++i) {
- bytes[i] = str.charCodeAt(i) & 0xFF;
- }
- return bytes;
-}
-
-/**
- * Gets length of the array (Array, Uint8Array, or string) in bytes.
- * @param {Array|Uint8Array|string} arr
- * @returns {number}
- */
-function arrayByteLength(arr) {
- if (arr.length !== undefined) {
- return arr.length;
- }
- assert(arr.byteLength !== undefined);
- return arr.byteLength;
-}
-
-/**
- * Combines array items (arrays) into single Uint8Array object.
- * @param {Array} arr - the array of the arrays (Array, Uint8Array, or string).
- * @returns {Uint8Array}
- */
-function arraysToBytes(arr) {
- // Shortcut: if first and only item is Uint8Array, return it.
- if (arr.length === 1 && (arr[0] instanceof Uint8Array)) {
- return arr[0];
- }
- var resultLength = 0;
- var i, ii = arr.length;
- var item, itemLength;
- for (i = 0; i < ii; i++) {
- item = arr[i];
- itemLength = arrayByteLength(item);
- resultLength += itemLength;
- }
- var pos = 0;
- var data = new Uint8Array(resultLength);
- for (i = 0; i < ii; i++) {
- item = arr[i];
- if (!(item instanceof Uint8Array)) {
- if (typeof item === 'string') {
- item = stringToBytes(item);
- } else {
- item = new Uint8Array(item);
- }
- }
- itemLength = item.byteLength;
- data.set(item, pos);
- pos += itemLength;
- }
- return data;
-}
-
-function string32(value) {
- return String.fromCharCode((value >> 24) & 0xff, (value >> 16) & 0xff,
- (value >> 8) & 0xff, value & 0xff);
-}
-
-function log2(x) {
- var n = 1, i = 0;
- while (x > n) {
- n <<= 1;
- i++;
- }
- return i;
-}
-
-function readInt8(data, start) {
- return (data[start] << 24) >> 24;
-}
-
-function readUint16(data, offset) {
- return (data[offset] << 8) | data[offset + 1];
-}
-
-function readUint32(data, offset) {
- return ((data[offset] << 24) | (data[offset + 1] << 16) |
- (data[offset + 2] << 8) | data[offset + 3]) >>> 0;
-}
-
-// Lazy test the endianness of the platform
-// NOTE: This will be 'true' for simulated TypedArrays
-function isLittleEndian() {
- var buffer8 = new Uint8Array(4);
- buffer8[0] = 1;
- var view32 = new Uint32Array(buffer8.buffer, 0, 1);
- return (view32[0] === 1);
-}
-
-// Checks if it's possible to eval JS expressions.
-function isEvalSupported() {
- try {
- new Function(''); // eslint-disable-line no-new, no-new-func
- return true;
- } catch (e) {
- return false;
- }
-}
-
-var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
-
-var Util = (function UtilClosure() {
- function Util() {}
-
- var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];
-
- // makeCssRgb() can be called thousands of times. Using |rgbBuf| avoids
- // creating many intermediate strings.
- Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
- rgbBuf[1] = r;
- rgbBuf[3] = g;
- rgbBuf[5] = b;
- return rgbBuf.join('');
- };
-
- // Concatenates two transformation matrices together and returns the result.
- Util.transform = function Util_transform(m1, m2) {
- return [
- m1[0] * m2[0] + m1[2] * m2[1],
- m1[1] * m2[0] + m1[3] * m2[1],
- m1[0] * m2[2] + m1[2] * m2[3],
- m1[1] * m2[2] + m1[3] * m2[3],
- m1[0] * m2[4] + m1[2] * m2[5] + m1[4],
- m1[1] * m2[4] + m1[3] * m2[5] + m1[5]
- ];
- };
-
- // For 2d affine transforms
- Util.applyTransform = function Util_applyTransform(p, m) {
- var xt = p[0] * m[0] + p[1] * m[2] + m[4];
- var yt = p[0] * m[1] + p[1] * m[3] + m[5];
- return [xt, yt];
- };
-
- Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
- var d = m[0] * m[3] - m[1] * m[2];
- var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
- var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
- return [xt, yt];
- };
-
- // Applies the transform to the rectangle and finds the minimum axially
- // aligned bounding box.
- Util.getAxialAlignedBoundingBox =
- function Util_getAxialAlignedBoundingBox(r, m) {
-
- var p1 = Util.applyTransform(r, m);
- var p2 = Util.applyTransform(r.slice(2, 4), m);
- var p3 = Util.applyTransform([r[0], r[3]], m);
- var p4 = Util.applyTransform([r[2], r[1]], m);
- return [
- Math.min(p1[0], p2[0], p3[0], p4[0]),
- Math.min(p1[1], p2[1], p3[1], p4[1]),
- Math.max(p1[0], p2[0], p3[0], p4[0]),
- Math.max(p1[1], p2[1], p3[1], p4[1])
- ];
- };
-
- Util.inverseTransform = function Util_inverseTransform(m) {
- var d = m[0] * m[3] - m[1] * m[2];
- return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d,
- (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
- };
-
- // Apply a generic 3d matrix M on a 3-vector v:
- // | a b c | | X |
- // | d e f | x | Y |
- // | g h i | | Z |
- // M is assumed to be serialized as [a,b,c,d,e,f,g,h,i],
- // with v as [X,Y,Z]
- Util.apply3dTransform = function Util_apply3dTransform(m, v) {
- return [
- m[0] * v[0] + m[1] * v[1] + m[2] * v[2],
- m[3] * v[0] + m[4] * v[1] + m[5] * v[2],
- m[6] * v[0] + m[7] * v[1] + m[8] * v[2]
- ];
- };
-
- // This calculation uses Singular Value Decomposition.
- // The SVD can be represented with formula A = USV. We are interested in the
- // matrix S here because it represents the scale values.
- Util.singularValueDecompose2dScale =
- function Util_singularValueDecompose2dScale(m) {
-
- var transpose = [m[0], m[2], m[1], m[3]];
-
- // Multiply matrix m with its transpose.
- var a = m[0] * transpose[0] + m[1] * transpose[2];
- var b = m[0] * transpose[1] + m[1] * transpose[3];
- var c = m[2] * transpose[0] + m[3] * transpose[2];
- var d = m[2] * transpose[1] + m[3] * transpose[3];
-
- // Solve the second degree polynomial to get roots.
- var first = (a + d) / 2;
- var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
- var sx = first + second || 1;
- var sy = first - second || 1;
-
- // Scale values are the square roots of the eigenvalues.
- return [Math.sqrt(sx), Math.sqrt(sy)];
- };
-
- // Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)
- // For coordinate systems whose origin lies in the bottom-left, this
- // means normalization to (BL,TR) ordering. For systems with origin in the
- // top-left, this means (TL,BR) ordering.
- Util.normalizeRect = function Util_normalizeRect(rect) {
- var r = rect.slice(0); // clone rect
- if (rect[0] > rect[2]) {
- r[0] = rect[2];
- r[2] = rect[0];
- }
- if (rect[1] > rect[3]) {
- r[1] = rect[3];
- r[3] = rect[1];
- }
- return r;
- };
-
- // Returns a rectangle [x1, y1, x2, y2] corresponding to the
- // intersection of rect1 and rect2. If no intersection, returns 'false'
- // The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]
- Util.intersect = function Util_intersect(rect1, rect2) {
- function compare(a, b) {
- return a - b;
- }
-
- // Order points along the axes
- var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
- orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
- result = [];
-
- rect1 = Util.normalizeRect(rect1);
- rect2 = Util.normalizeRect(rect2);
-
- // X: first and second points belong to different rectangles?
- if ((orderedX[0] === rect1[0] && orderedX[1] === rect2[0]) ||
- (orderedX[0] === rect2[0] && orderedX[1] === rect1[0])) {
- // Intersection must be between second and third points
- result[0] = orderedX[1];
- result[2] = orderedX[2];
- } else {
- return false;
- }
-
- // Y: first and second points belong to different rectangles?
- if ((orderedY[0] === rect1[1] && orderedY[1] === rect2[1]) ||
- (orderedY[0] === rect2[1] && orderedY[1] === rect1[1])) {
- // Intersection must be between second and third points
- result[1] = orderedY[1];
- result[3] = orderedY[2];
- } else {
- return false;
- }
-
- return result;
- };
-
- Util.sign = function Util_sign(num) {
- return num < 0 ? -1 : 1;
- };
-
- var ROMAN_NUMBER_MAP = [
- '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM',
- '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC',
- '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'
- ];
- /**
- * Converts positive integers to (upper case) Roman numerals.
- * @param {integer} number - The number that should be converted.
- * @param {boolean} lowerCase - Indicates if the result should be converted
- * to lower case letters. The default is false.
- * @return {string} The resulting Roman number.
- */
- Util.toRoman = function Util_toRoman(number, lowerCase) {
- assert(isInt(number) && number > 0,
- 'The number should be a positive integer.');
- var pos, romanBuf = [];
- // Thousands
- while (number >= 1000) {
- number -= 1000;
- romanBuf.push('M');
- }
- // Hundreds
- pos = (number / 100) | 0;
- number %= 100;
- romanBuf.push(ROMAN_NUMBER_MAP[pos]);
- // Tens
- pos = (number / 10) | 0;
- number %= 10;
- romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
- // Ones
- romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
-
- var romanStr = romanBuf.join('');
- return (lowerCase ? romanStr.toLowerCase() : romanStr);
- };
-
- Util.appendToArray = function Util_appendToArray(arr1, arr2) {
- Array.prototype.push.apply(arr1, arr2);
- };
-
- Util.prependToArray = function Util_prependToArray(arr1, arr2) {
- Array.prototype.unshift.apply(arr1, arr2);
- };
-
- Util.extendObj = function extendObj(obj1, obj2) {
- for (var key in obj2) {
- obj1[key] = obj2[key];
- }
- };
-
- Util.getInheritableProperty =
- function Util_getInheritableProperty(dict, name, getArray) {
- while (dict && !dict.has(name)) {
- dict = dict.get('Parent');
- }
- if (!dict) {
- return null;
- }
- return getArray ? dict.getArray(name) : dict.get(name);
- };
-
- Util.inherit = function Util_inherit(sub, base, prototype) {
- sub.prototype = Object.create(base.prototype);
- sub.prototype.constructor = sub;
- for (var prop in prototype) {
- sub.prototype[prop] = prototype[prop];
- }
- };
-
- Util.loadScript = function Util_loadScript(src, callback) {
- var script = document.createElement('script');
- var loaded = false;
- script.setAttribute('src', src);
- if (callback) {
- script.onload = function() {
- if (!loaded) {
- callback();
- }
- loaded = true;
- };
- }
- document.getElementsByTagName('head')[0].appendChild(script);
- };
-
- return Util;
-})();
-
-/**
- * PDF page viewport created based on scale, rotation and offset.
- * @class
- * @alias PageViewport
- */
-var PageViewport = (function PageViewportClosure() {
- /**
- * @constructor
- * @private
- * @param viewBox {Array} xMin, yMin, xMax and yMax coordinates.
- * @param scale {number} scale of the viewport.
- * @param rotation {number} rotations of the viewport in degrees.
- * @param offsetX {number} offset X
- * @param offsetY {number} offset Y
- * @param dontFlip {boolean} if true, axis Y will not be flipped.
- */
- function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {
- this.viewBox = viewBox;
- this.scale = scale;
- this.rotation = rotation;
- this.offsetX = offsetX;
- this.offsetY = offsetY;
-
- // creating transform to convert pdf coordinate system to the normal
- // canvas like coordinates taking in account scale and rotation
- var centerX = (viewBox[2] + viewBox[0]) / 2;
- var centerY = (viewBox[3] + viewBox[1]) / 2;
- var rotateA, rotateB, rotateC, rotateD;
- rotation = rotation % 360;
- rotation = rotation < 0 ? rotation + 360 : rotation;
- switch (rotation) {
- case 180:
- rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;
- break;
- case 90:
- rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;
- break;
- case 270:
- rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;
- break;
- // case 0:
- default:
- rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;
- break;
- }
-
- if (dontFlip) {
- rotateC = -rotateC; rotateD = -rotateD;
- }
-
- var offsetCanvasX, offsetCanvasY;
- var width, height;
- if (rotateA === 0) {
- offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
- offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
- width = Math.abs(viewBox[3] - viewBox[1]) * scale;
- height = Math.abs(viewBox[2] - viewBox[0]) * scale;
- } else {
- offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
- offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
- width = Math.abs(viewBox[2] - viewBox[0]) * scale;
- height = Math.abs(viewBox[3] - viewBox[1]) * scale;
- }
- // creating transform for the following operations:
- // translate(-centerX, -centerY), rotate and flip vertically,
- // scale, and translate(offsetCanvasX, offsetCanvasY)
- this.transform = [
- rotateA * scale,
- rotateB * scale,
- rotateC * scale,
- rotateD * scale,
- offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY,
- offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY
- ];
-
- this.width = width;
- this.height = height;
- this.fontScale = scale;
- }
- PageViewport.prototype = /** @lends PageViewport.prototype */ {
- /**
- * Clones viewport with additional properties.
- * @param args {Object} (optional) If specified, may contain the 'scale' or
- * 'rotation' properties to override the corresponding properties in
- * the cloned viewport.
- * @returns {PageViewport} Cloned viewport.
- */
- clone: function PageViewPort_clone(args) {
- args = args || {};
- var scale = 'scale' in args ? args.scale : this.scale;
- var rotation = 'rotation' in args ? args.rotation : this.rotation;
- return new PageViewport(this.viewBox.slice(), scale, rotation,
- this.offsetX, this.offsetY, args.dontFlip);
- },
- /**
- * Converts PDF point to the viewport coordinates. For examples, useful for
- * converting PDF location into canvas pixel coordinates.
- * @param x {number} X coordinate.
- * @param y {number} Y coordinate.
- * @returns {Object} Object that contains 'x' and 'y' properties of the
- * point in the viewport coordinate space.
- * @see {@link convertToPdfPoint}
- * @see {@link convertToViewportRectangle}
- */
- convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
- return Util.applyTransform([x, y], this.transform);
- },
- /**
- * Converts PDF rectangle to the viewport coordinates.
- * @param rect {Array} xMin, yMin, xMax and yMax coordinates.
- * @returns {Array} Contains corresponding coordinates of the rectangle
- * in the viewport coordinate space.
- * @see {@link convertToViewportPoint}
- */
- convertToViewportRectangle:
- function PageViewport_convertToViewportRectangle(rect) {
- var tl = Util.applyTransform([rect[0], rect[1]], this.transform);
- var br = Util.applyTransform([rect[2], rect[3]], this.transform);
- return [tl[0], tl[1], br[0], br[1]];
- },
- /**
- * Converts viewport coordinates to the PDF location. For examples, useful
- * for converting canvas pixel location into PDF one.
- * @param x {number} X coordinate.
- * @param y {number} Y coordinate.
- * @returns {Object} Object that contains 'x' and 'y' properties of the
- * point in the PDF coordinate space.
- * @see {@link convertToViewportPoint}
- */
- convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {
- return Util.applyInverseTransform([x, y], this.transform);
- },
- };
- return PageViewport;
-})();
-
-var PDFStringTranslateTable = [
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014,
- 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C,
- 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160,
- 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC
-];
-
-function stringToPDFString(str) {
- var i, n = str.length, strBuf = [];
- if (str[0] === '\xFE' && str[1] === '\xFF') {
- // UTF16BE BOM
- for (i = 2; i < n; i += 2) {
- strBuf.push(String.fromCharCode(
- (str.charCodeAt(i) << 8) | str.charCodeAt(i + 1)));
- }
- } else {
- for (i = 0; i < n; ++i) {
- var code = PDFStringTranslateTable[str.charCodeAt(i)];
- strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
- }
- }
- return strBuf.join('');
-}
-
-function stringToUTF8String(str) {
- return decodeURIComponent(escape(str));
-}
-
-function utf8StringToString(str) {
- return unescape(encodeURIComponent(str));
-}
-
-function isEmptyObj(obj) {
- for (var key in obj) {
- return false;
- }
- return true;
-}
-
-function isBool(v) {
- return typeof v === 'boolean';
-}
-
-function isInt(v) {
- return typeof v === 'number' && ((v | 0) === v);
-}
-
-function isNum(v) {
- return typeof v === 'number';
-}
-
-function isString(v) {
- return typeof v === 'string';
-}
-
-function isArray(v) {
- return v instanceof Array;
-}
-
-function isArrayBuffer(v) {
- return typeof v === 'object' && v !== null && v.byteLength !== undefined;
-}
-
-// Checks if ch is one of the following characters: SPACE, TAB, CR or LF.
-function isSpace(ch) {
- return (ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A);
-}
-
-function isNodeJS() {
- // eslint-disable-next-line no-undef
- return typeof process === 'object' && process + '' === '[object process]';
-}
-
-/**
- * Promise Capability object.
- *
- * @typedef {Object} PromiseCapability
- * @property {Promise} promise - A promise object.
- * @property {function} resolve - Fulfills the promise.
- * @property {function} reject - Rejects the promise.
- */
-
-/**
- * Creates a promise capability object.
- * @alias createPromiseCapability
- *
- * @return {PromiseCapability} A capability object contains:
- * - a Promise, resolve and reject methods.
- */
-function createPromiseCapability() {
- var capability = {};
- capability.promise = new Promise(function (resolve, reject) {
- capability.resolve = resolve;
- capability.reject = reject;
- });
- return capability;
-}
-
-var StatTimer = (function StatTimerClosure() {
- function rpad(str, pad, length) {
- while (str.length < length) {
- str += pad;
- }
- return str;
- }
- function StatTimer() {
- this.started = Object.create(null);
- this.times = [];
- this.enabled = true;
- }
- StatTimer.prototype = {
- time: function StatTimer_time(name) {
- if (!this.enabled) {
- return;
- }
- if (name in this.started) {
- warn('Timer is already running for ' + name);
- }
- this.started[name] = Date.now();
- },
- timeEnd: function StatTimer_timeEnd(name) {
- if (!this.enabled) {
- return;
- }
- if (!(name in this.started)) {
- warn('Timer has not been started for ' + name);
- }
- this.times.push({
- 'name': name,
- 'start': this.started[name],
- 'end': Date.now(),
- });
- // Remove timer from started so it can be called again.
- delete this.started[name];
- },
- toString: function StatTimer_toString() {
- var i, ii;
- var times = this.times;
- var out = '';
- // Find the longest name for padding purposes.
- var longest = 0;
- for (i = 0, ii = times.length; i < ii; ++i) {
- var name = times[i]['name'];
- if (name.length > longest) {
- longest = name.length;
- }
- }
- for (i = 0, ii = times.length; i < ii; ++i) {
- var span = times[i];
- var duration = span.end - span.start;
- out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\n';
- }
- return out;
- },
- };
- return StatTimer;
-})();
-
-var createBlob = function createBlob(data, contentType) {
- if (typeof Blob !== 'undefined') {
- return new Blob([data], { type: contentType, });
- }
- throw new Error('The "Blob" constructor is not supported.');
-};
-
-var createObjectURL = (function createObjectURLClosure() {
- // Blob/createObjectURL is not available, falling back to data schema.
- var digits =
- 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
-
- return function createObjectURL(data, contentType, forceDataSchema = false) {
- if (!forceDataSchema && URL.createObjectURL) {
- var blob = createBlob(data, contentType);
- return URL.createObjectURL(blob);
- }
-
- var buffer = 'data:' + contentType + ';base64,';
- for (var i = 0, ii = data.length; i < ii; i += 3) {
- var b1 = data[i] & 0xFF;
- var b2 = data[i + 1] & 0xFF;
- var b3 = data[i + 2] & 0xFF;
- var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
- var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
- var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;
- buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
- }
- return buffer;
- };
-})();
-
-function resolveCall(fn, args, thisArg = null) {
- if (!fn) {
- return Promise.resolve(undefined);
- }
- return new Promise((resolve, reject) => {
- resolve(fn.apply(thisArg, args));
- });
-}
-
-function resolveOrReject(capability, success, reason) {
- if (success) {
- capability.resolve();
- } else {
- capability.reject(reason);
- }
-}
-
-function finalize(promise) {
- return Promise.resolve(promise).catch(() => {});
-}
-
-function MessageHandler(sourceName, targetName, comObj) {
- this.sourceName = sourceName;
- this.targetName = targetName;
- this.comObj = comObj;
- this.callbackId = 1;
- this.streamId = 1;
- this.postMessageTransfers = true;
- this.streamSinks = Object.create(null);
- this.streamControllers = Object.create(null);
- let callbacksCapabilities = this.callbacksCapabilities = Object.create(null);
- let ah = this.actionHandler = Object.create(null);
-
- this._onComObjOnMessage = (event) => {
- let data = event.data;
- if (data.targetName !== this.sourceName) {
- return;
- }
- if (data.stream) {
- this._processStreamMessage(data);
- } else if (data.isReply) {
- let callbackId = data.callbackId;
- if (data.callbackId in callbacksCapabilities) {
- let callback = callbacksCapabilities[callbackId];
- delete callbacksCapabilities[callbackId];
- if ('error' in data) {
- callback.reject(data.error);
- } else {
- callback.resolve(data.data);
- }
- } else {
- throw new Error(`Cannot resolve callback ${callbackId}`);
- }
- } else if (data.action in ah) {
- let action = ah[data.action];
- if (data.callbackId) {
- let sourceName = this.sourceName;
- let targetName = data.sourceName;
- Promise.resolve().then(function () {
- return action[0].call(action[1], data.data);
- }).then((result) => {
- comObj.postMessage({
- sourceName,
- targetName,
- isReply: true,
- callbackId: data.callbackId,
- data: result,
- });
- }, (reason) => {
- if (reason instanceof Error) {
- // Serialize error to avoid "DataCloneError"
- reason = reason + '';
- }
- comObj.postMessage({
- sourceName,
- targetName,
- isReply: true,
- callbackId: data.callbackId,
- error: reason,
- });
- });
- } else if (data.streamId) {
- this._createStreamSink(data);
- } else {
- action[0].call(action[1], data.data);
- }
- } else {
- throw new Error(`Unknown action from worker: ${data.action}`);
- }
- };
- comObj.addEventListener('message', this._onComObjOnMessage);
-}
-
-MessageHandler.prototype = {
- on(actionName, handler, scope) {
- var ah = this.actionHandler;
- if (ah[actionName]) {
- throw new Error(`There is already an actionName called "${actionName}"`);
- }
- ah[actionName] = [handler, scope];
- },
- /**
- * Sends a message to the comObj to invoke the action with the supplied data.
- * @param {String} actionName - Action to call.
- * @param {JSON} data - JSON data to send.
- * @param {Array} [transfers] - Optional list of transfers/ArrayBuffers
- */
- send(actionName, data, transfers) {
- var message = {
- sourceName: this.sourceName,
- targetName: this.targetName,
- action: actionName,
- data,
- };
- this.postMessage(message, transfers);
- },
- /**
- * Sends a message to the comObj to invoke the action with the supplied data.
- * Expects that the other side will callback with the response.
- * @param {String} actionName - Action to call.
- * @param {JSON} data - JSON data to send.
- * @param {Array} [transfers] - Optional list of transfers/ArrayBuffers.
- * @returns {Promise} Promise to be resolved with response data.
- */
- sendWithPromise(actionName, data, transfers) {
- var callbackId = this.callbackId++;
- var message = {
- sourceName: this.sourceName,
- targetName: this.targetName,
- action: actionName,
- data,
- callbackId,
- };
- var capability = createPromiseCapability();
- this.callbacksCapabilities[callbackId] = capability;
- try {
- this.postMessage(message, transfers);
- } catch (e) {
- capability.reject(e);
- }
- return capability.promise;
- },
- /**
- * Sends a message to the comObj to invoke the action with the supplied data.
- * Expect that the other side will callback to signal 'start_complete'.
- * @param {String} actionName - Action to call.
- * @param {JSON} data - JSON data to send.
- * @param {Object} queueingStrategy - strategy to signal backpressure based on
- * internal queue.
- * @param {Array} [transfers] - Optional list of transfers/ArrayBuffers.
- * @return {ReadableStream} ReadableStream to read data in chunks.
- */
- sendWithStream(actionName, data, queueingStrategy, transfers) {
- let streamId = this.streamId++;
- let sourceName = this.sourceName;
- let targetName = this.targetName;
-
- return new ReadableStream({
- start: (controller) => {
- let startCapability = createPromiseCapability();
- this.streamControllers[streamId] = {
- controller,
- startCall: startCapability,
- isClosed: false,
- };
- this.postMessage({
- sourceName,
- targetName,
- action: actionName,
- streamId,
- data,
- desiredSize: controller.desiredSize,
- });
- // Return Promise for Async process, to signal success/failure.
- return startCapability.promise;
- },
-
- pull: (controller) => {
- let pullCapability = createPromiseCapability();
- this.streamControllers[streamId].pullCall = pullCapability;
- this.postMessage({
- sourceName,
- targetName,
- stream: 'pull',
- streamId,
- desiredSize: controller.desiredSize,
- });
- // Returning Promise will not call "pull"
- // again until current pull is resolved.
- return pullCapability.promise;
- },
-
- cancel: (reason) => {
- let cancelCapability = createPromiseCapability();
- this.streamControllers[streamId].cancelCall = cancelCapability;
- this.streamControllers[streamId].isClosed = true;
- this.postMessage({
- sourceName,
- targetName,
- stream: 'cancel',
- reason,
- streamId,
- });
- // Return Promise to signal success or failure.
- return cancelCapability.promise;
- },
- }, queueingStrategy);
- },
-
- _createStreamSink(data) {
- let self = this;
- let action = this.actionHandler[data.action];
- let streamId = data.streamId;
- let desiredSize = data.desiredSize;
- let sourceName = this.sourceName;
- let targetName = data.sourceName;
- let capability = createPromiseCapability();
-
- let sendStreamRequest = ({ stream, chunk, success, reason, }) => {
- this.comObj.postMessage({ sourceName, targetName, stream, streamId,
- chunk, success, reason, });
- };
-
- let streamSink = {
- enqueue(chunk, size = 1) {
- let lastDesiredSize = this.desiredSize;
- this.desiredSize -= size;
- // Enqueue decreases the desiredSize property of sink,
- // so when it changes from positive to negative,
- // set ready as unresolved promise.
- if (lastDesiredSize > 0 && this.desiredSize <= 0) {
- this.sinkCapability = createPromiseCapability();
- this.ready = this.sinkCapability.promise;
- }
- sendStreamRequest({ stream: 'enqueue', chunk, });
- },
-
- close() {
- sendStreamRequest({ stream: 'close', });
- delete self.streamSinks[streamId];
- },
-
- error(reason) {
- sendStreamRequest({ stream: 'error', reason, });
- },
-
- sinkCapability: capability,
- onPull: null,
- onCancel: null,
- desiredSize,
- ready: null,
- };
-
- streamSink.sinkCapability.resolve();
- streamSink.ready = streamSink.sinkCapability.promise;
- this.streamSinks[streamId] = streamSink;
- resolveCall(action[0], [data.data, streamSink], action[1]).then(() => {
- sendStreamRequest({ stream: 'start_complete', success: true, });
- }, (reason) => {
- sendStreamRequest({ stream: 'start_complete', success: false, reason, });
- });
- },
-
- _processStreamMessage(data) {
- let sourceName = this.sourceName;
- let targetName = data.sourceName;
- let streamId = data.streamId;
-
- let sendStreamResponse = ({ stream, success, reason, }) => {
- this.comObj.postMessage({ sourceName, targetName, stream,
- success, streamId, reason, });
- };
-
- let deleteStreamController = () => {
- // Delete streamController only when start, pull and
- // cancel callbacks are resolved, to avoid "TypeError".
- Promise.all([
- this.streamControllers[data.streamId].startCall,
- this.streamControllers[data.streamId].pullCall,
- this.streamControllers[data.streamId].cancelCall
- ].map(function(capability) {
- return capability && finalize(capability.promise);
- })).then(() => {
- delete this.streamControllers[data.streamId];
- });
- };
-
- switch (data.stream) {
- case 'start_complete':
- resolveOrReject(this.streamControllers[data.streamId].startCall,
- data.success, data.reason);
- break;
- case 'pull_complete':
- resolveOrReject(this.streamControllers[data.streamId].pullCall,
- data.success, data.reason);
- break;
- case 'pull':
- // Ignore any pull after close is called.
- if (!this.streamSinks[data.streamId]) {
- sendStreamResponse({ stream: 'pull_complete', success: true, });
- break;
- }
- // Pull increases the desiredSize property of sink,
- // so when it changes from negative to positive,
- // set ready property as resolved promise.
- if (this.streamSinks[data.streamId].desiredSize <= 0 &&
- data.desiredSize > 0) {
- this.streamSinks[data.streamId].sinkCapability.resolve();
- }
- // Reset desiredSize property of sink on every pull.
- this.streamSinks[data.streamId].desiredSize = data.desiredSize;
- resolveCall(this.streamSinks[data.streamId].onPull).then(() => {
- sendStreamResponse({ stream: 'pull_complete', success: true, });
- }, (reason) => {
- sendStreamResponse({ stream: 'pull_complete',
- success: false, reason, });
- });
- break;
- case 'enqueue':
- if (!this.streamControllers[data.streamId].isClosed) {
- this.streamControllers[data.streamId].controller.enqueue(data.chunk);
- }
- break;
- case 'close':
- if (this.streamControllers[data.streamId].isClosed) {
- break;
- }
- this.streamControllers[data.streamId].isClosed = true;
- this.streamControllers[data.streamId].controller.close();
- deleteStreamController();
- break;
- case 'error':
- this.streamControllers[data.streamId].controller.error(data.reason);
- deleteStreamController();
- break;
- case 'cancel_complete':
- resolveOrReject(this.streamControllers[data.streamId].cancelCall,
- data.success, data.reason);
- deleteStreamController();
- break;
- case 'cancel':
- if (!this.streamSinks[data.streamId]) {
- break;
- }
- resolveCall(this.streamSinks[data.streamId].onCancel,
- [data.reason]).then(() => {
- sendStreamResponse({ stream: 'cancel_complete', success: true, });
- }, (reason) => {
- sendStreamResponse({ stream: 'cancel_complete',
- success: false, reason, });
- });
- delete this.streamSinks[data.streamId];
- break;
- default:
- throw new Error('Unexpected stream case');
- }
- },
-
- /**
- * Sends raw message to the comObj.
- * @private
- * @param {Object} message - Raw message.
- * @param transfers List of transfers/ArrayBuffers, or undefined.
- */
- postMessage(message, transfers) {
- if (transfers && this.postMessageTransfers) {
- this.comObj.postMessage(message, transfers);
- } else {
- this.comObj.postMessage(message);
- }
- },
-
- destroy() {
- this.comObj.removeEventListener('message', this._onComObjOnMessage);
- },
-};
-
-function loadJpegStream(id, imageUrl, objs) {
- var img = new Image();
- img.onload = (function loadJpegStream_onloadClosure() {
- objs.resolve(id, img);
- });
- img.onerror = (function loadJpegStream_onerrorClosure() {
- objs.resolve(id, null);
- warn('Error during JPEG image loading');
- });
- img.src = imageUrl;
-}
-
-export {
- FONT_IDENTITY_MATRIX,
- IDENTITY_MATRIX,
- OPS,
- VERBOSITY_LEVELS,
- UNSUPPORTED_FEATURES,
- AnnotationBorderStyleType,
- AnnotationFieldFlag,
- AnnotationFlag,
- AnnotationType,
- FontType,
- ImageKind,
- CMapCompressionType,
- InvalidPDFException,
- MessageHandler,
- MissingDataException,
- MissingPDFException,
- NativeImageDecoding,
- NotImplementedException,
- PageViewport,
- PasswordException,
- PasswordResponses,
- StatTimer,
- StreamType,
- TextRenderingMode,
- UnexpectedResponseException,
- UnknownErrorException,
- Util,
- XRefParseException,
- FormatError,
- arrayByteLength,
- arraysToBytes,
- assert,
- bytesToString,
- createBlob,
- createPromiseCapability,
- createObjectURL,
- deprecated,
- getLookupTableFactory,
- getVerbosityLevel,
- globalScope,
- info,
- isArray,
- isArrayBuffer,
- isBool,
- isEmptyObj,
- isInt,
- isNum,
- isString,
- isSpace,
- isNodeJS,
- isSameOrigin,
- createValidAbsoluteUrl,
- isLittleEndian,
- isEvalSupported,
- loadJpegStream,
- log2,
- readInt8,
- readUint16,
- readUint32,
- removeNullCharacters,
- ReadableStream,
- setVerbosityLevel,
- shadow,
- string32,
- stringToBytes,
- stringToPDFString,
- stringToUTF8String,
- utf8StringToString,
- warn,
- unreachable,
-};
-
-
- 
