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Merge pull request #11534 from Snuffleupagus/prefer-const

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Enable the ESLint `prefer-const` rule globally (PR 11450 follow-up)
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Tim van der Meij 2020-01-25 00:25:36 +01:00 committed by GitHub
commit 794744c3fa
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57 changed files with 752 additions and 770 deletions
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2
.eslintrc
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@ -161,7 +161,7 @@
"object-shorthand": ["error", "always", { "object-shorthand": ["error", "always", {
"avoidQuotes": true, "avoidQuotes": true,
}], }],
"prefer-const": "off", "prefer-const": "error",
"sort-imports": ["error", { "sort-imports": ["error", {
"ignoreCase": true, "ignoreCase": true,
}], }],

4
src/core/annotation.js
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@ -1058,8 +1058,8 @@ class ChoiceWidgetAnnotation extends WidgetAnnotation {
if (Array.isArray(options)) { if (Array.isArray(options)) {
const xref = params.xref; const xref = params.xref;
for (let i = 0, ii = options.length; i < ii; i++) { for (let i = 0, ii = options.length; i < ii; i++) {
let option = xref.fetchIfRef(options[i]); const option = xref.fetchIfRef(options[i]);
let isOptionArray = Array.isArray(option); const isOptionArray = Array.isArray(option);
this.data.options[i] = { this.data.options[i] = {
exportValue: isOptionArray ? xref.fetchIfRef(option[0]) : option, exportValue: isOptionArray ? xref.fetchIfRef(option[0]) : option,

18
src/core/ccitt.js
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@ -27,7 +27,7 @@
import { info } from "../shared/util.js"; import { info } from "../shared/util.js";
let CCITTFaxDecoder = (function CCITTFaxDecoder() { const CCITTFaxDecoder = (function CCITTFaxDecoder() {
const ccittEOL = -2; const ccittEOL = -2;
const ccittEOF = -1; const ccittEOF = -1;
const twoDimPass = 0; const twoDimPass = 0;
@ -515,9 +515,9 @@ let CCITTFaxDecoder = (function CCITTFaxDecoder() {
if (this.eof) { if (this.eof) {
return -1; return -1;
} }
let refLine = this.refLine; const refLine = this.refLine;
let codingLine = this.codingLine; const codingLine = this.codingLine;
let columns = this.columns; const columns = this.columns;
let refPos, blackPixels, bits, i; let refPos, blackPixels, bits, i;
@ -850,7 +850,7 @@ let CCITTFaxDecoder = (function CCITTFaxDecoder() {
* @private * @private
*/ */
_addPixels(a1, blackPixels) { _addPixels(a1, blackPixels) {
let codingLine = this.codingLine; const codingLine = this.codingLine;
let codingPos = this.codingPos; let codingPos = this.codingPos;
if (a1 > codingLine[codingPos]) { if (a1 > codingLine[codingPos]) {
@ -872,7 +872,7 @@ let CCITTFaxDecoder = (function CCITTFaxDecoder() {
* @private * @private
*/ */
_addPixelsNeg(a1, blackPixels) { _addPixelsNeg(a1, blackPixels) {
let codingLine = this.codingLine; const codingLine = this.codingLine;
let codingPos = this.codingPos; let codingPos = this.codingPos;
if (a1 > codingLine[codingPos]) { if (a1 > codingLine[codingPos]) {
@ -911,7 +911,7 @@ let CCITTFaxDecoder = (function CCITTFaxDecoder() {
* @private * @private
*/ */
_findTableCode(start, end, table, limit) { _findTableCode(start, end, table, limit) {
let limitValue = limit || 0; const limitValue = limit || 0;
for (let i = start; i <= end; ++i) { for (let i = start; i <= end; ++i) {
let code = this._lookBits(i); let code = this._lookBits(i);
if (code === ccittEOF) { if (code === ccittEOF) {
@ -921,7 +921,7 @@ let CCITTFaxDecoder = (function CCITTFaxDecoder() {
code <<= end - i; code <<= end - i;
} }
if (!limitValue || code >= limitValue) { if (!limitValue || code >= limitValue) {
let p = table[code - limitValue]; const p = table[code - limitValue];
if (p[0] === i) { if (p[0] === i) {
this._eatBits(i); this._eatBits(i);
return [true, p[1], true]; return [true, p[1], true];
@ -945,7 +945,7 @@ let CCITTFaxDecoder = (function CCITTFaxDecoder() {
return p[1]; return p[1];
} }
} else { } else {
let result = this._findTableCode(1, 7, twoDimTable); const result = this._findTableCode(1, 7, twoDimTable);
if (result[0] && result[2]) { if (result[0] && result[2]) {
return result[1]; return result[1];
} }

2
src/core/ccitt_stream.js
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@ -48,7 +48,7 @@ var CCITTFaxStream = (function CCITTFaxStreamClosure() {
CCITTFaxStream.prototype.readBlock = function() { CCITTFaxStream.prototype.readBlock = function() {
while (!this.eof) { while (!this.eof) {
let c = this.ccittFaxDecoder.readNextChar(); const c = this.ccittFaxDecoder.readNextChar();
if (c === -1) { if (c === -1) {
this.eof = true; this.eof = true;
return; return;

18
src/core/cff_parser.js
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@ -1730,7 +1730,7 @@ var CFFCompiler = (function CFFCompilerClosure() {
// Freetype requires the number of charset strings be correct and MacOS // Freetype requires the number of charset strings be correct and MacOS
// requires a valid mapping for printing. // requires a valid mapping for printing.
let out; let out;
let numGlyphsLessNotDef = numGlyphs - 1; const numGlyphsLessNotDef = numGlyphs - 1;
if (isCIDFont) { if (isCIDFont) {
// In a CID font, the charset is a mapping of CIDs not SIDs so just // In a CID font, the charset is a mapping of CIDs not SIDs so just
// create an identity mapping. // create an identity mapping.
@ -1742,16 +1742,16 @@ var CFFCompiler = (function CFFCompilerClosure() {
numGlyphsLessNotDef & 0xff, numGlyphsLessNotDef & 0xff,
]); ]);
} else { } else {
let length = 1 + numGlyphsLessNotDef * 2; const length = 1 + numGlyphsLessNotDef * 2;
out = new Uint8Array(length); out = new Uint8Array(length);
out[0] = 0; // format 0 out[0] = 0; // format 0
let charsetIndex = 0; let charsetIndex = 0;
let numCharsets = charset.charset.length; const numCharsets = charset.charset.length;
let warned = false; let warned = false;
for (let i = 1; i < out.length; i += 2) { for (let i = 1; i < out.length; i += 2) {
let sid = 0; let sid = 0;
if (charsetIndex < numCharsets) { if (charsetIndex < numCharsets) {
let name = charset.charset[charsetIndex++]; const name = charset.charset[charsetIndex++];
sid = strings.getSID(name); sid = strings.getSID(name);
if (sid === -1) { if (sid === -1) {
sid = 0; sid = 0;
@ -1771,7 +1771,7 @@ var CFFCompiler = (function CFFCompilerClosure() {
return this.compileTypedArray(encoding.raw); return this.compileTypedArray(encoding.raw);
}, },
compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) { compileFDSelect: function CFFCompiler_compileFDSelect(fdSelect) {
let format = fdSelect.format; const format = fdSelect.format;
let out, i; let out, i;
switch (format) { switch (format) {
case 0: case 0:
@ -1782,9 +1782,9 @@ var CFFCompiler = (function CFFCompilerClosure() {
} }
break; break;
case 3: case 3:
let start = 0; const start = 0;
let lastFD = fdSelect.fdSelect[0]; let lastFD = fdSelect.fdSelect[0];
let ranges = [ const ranges = [
format, format,
0, // nRanges place holder 0, // nRanges place holder
0, // nRanges place holder 0, // nRanges place holder
@ -1793,14 +1793,14 @@ var CFFCompiler = (function CFFCompilerClosure() {
lastFD, lastFD,
]; ];
for (i = 1; i < fdSelect.fdSelect.length; i++) { for (i = 1; i < fdSelect.fdSelect.length; i++) {
let currentFD = fdSelect.fdSelect[i]; const currentFD = fdSelect.fdSelect[i];
if (currentFD !== lastFD) { if (currentFD !== lastFD) {
ranges.push((i >> 8) & 0xff, i & 0xff, currentFD); ranges.push((i >> 8) & 0xff, i & 0xff, currentFD);
lastFD = currentFD; lastFD = currentFD;
} }
} }
// 3 bytes are pushed for every range and there are 3 header bytes. // 3 bytes are pushed for every range and there are 3 header bytes.
let numRanges = (ranges.length - 3) / 3; const numRanges = (ranges.length - 3) / 3;
ranges[1] = (numRanges >> 8) & 0xff; ranges[1] = (numRanges >> 8) & 0xff;
ranges[2] = numRanges & 0xff; ranges[2] = numRanges & 0xff;
// sentinel // sentinel

2
src/core/chunked_stream.js
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@ -496,7 +496,7 @@ class ChunkedStreamManager {
} }
onReceiveData(args) { onReceiveData(args) {
let chunk = args.chunk; const chunk = args.chunk;
const isProgressive = args.begin === undefined; const isProgressive = args.begin === undefined;
const begin = isProgressive ? this.progressiveDataLength : args.begin; const begin = isProgressive ? this.progressiveDataLength : args.begin;
const end = begin + chunk.byteLength; const end = begin + chunk.byteLength;

12
src/core/cmap.js
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@ -240,8 +240,8 @@ class CMap {
} }
mapBfRangeToArray(low, high, array) { mapBfRangeToArray(low, high, array) {
let i = 0, const ii = array.length;
ii = array.length; let i = 0;
while (low <= high && i < ii) { while (low <= high && i < ii) {
this._map[low] = array[i++]; this._map[low] = array[i++];
++low; ++low;
@ -267,8 +267,8 @@ class CMap {
// indices in the *billions*. For such tables we use for..in, which isn't // indices in the *billions*. For such tables we use for..in, which isn't
// ideal because it stringifies the indices for all present elements, but // ideal because it stringifies the indices for all present elements, but
// it does avoid iterating over every undefined entry. // it does avoid iterating over every undefined entry.
let map = this._map; const map = this._map;
let length = map.length; const length = map.length;
if (length <= 0x10000) { if (length <= 0x10000) {
for (let i = 0; i < length; i++) { for (let i = 0; i < length; i++) {
if (map[i] !== undefined) { if (map[i] !== undefined) {
@ -276,7 +276,7 @@ class CMap {
} }
} }
} else { } else {
for (let i in map) { for (const i in map) {
callback(i, map[i]); callback(i, map[i]);
} }
} }
@ -289,7 +289,7 @@ class CMap {
if (map.length <= 0x10000) { if (map.length <= 0x10000) {
return map.indexOf(value); return map.indexOf(value);
} }
for (let charCode in map) { for (const charCode in map) {
if (map[charCode] === value) { if (map[charCode] === value) {
return charCode | 0; return charCode | 0;
} }

232
src/core/colorspace.js
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@ -37,12 +37,12 @@ import { isDict, isName, isStream } from "./primitives.js";
function resizeRgbImage(src, dest, w1, h1, w2, h2, alpha01) { function resizeRgbImage(src, dest, w1, h1, w2, h2, alpha01) {
const COMPONENTS = 3; const COMPONENTS = 3;
alpha01 = alpha01 !== 1 ? 0 : alpha01; alpha01 = alpha01 !== 1 ? 0 : alpha01;
let xRatio = w1 / w2; const xRatio = w1 / w2;
let yRatio = h1 / h2; const yRatio = h1 / h2;
let newIndex = 0, let newIndex = 0,
oldIndex; oldIndex;
let xScaled = new Uint16Array(w2); const xScaled = new Uint16Array(w2);
let w1Scanline = w1 * COMPONENTS; const w1Scanline = w1 * COMPONENTS;
for (let i = 0; i < w2; i++) { for (let i = 0; i < w2; i++) {
xScaled[i] = Math.floor(i * xRatio) * COMPONENTS; xScaled[i] = Math.floor(i * xRatio) * COMPONENTS;
@ -74,7 +74,7 @@ class ColorSpace {
* of the rgb components, each value ranging from [0,255]. * of the rgb components, each value ranging from [0,255].
*/ */
getRgb(src, srcOffset) { getRgb(src, srcOffset) {
let rgb = new Uint8ClampedArray(3); const rgb = new Uint8ClampedArray(3);
this.getRgbItem(src, srcOffset, rgb, 0); this.getRgbItem(src, srcOffset, rgb, 0);
return rgb; return rgb;
} }
@ -148,10 +148,10 @@ class ColorSpace {
'ColorSpace.fillRgb: Unsupported "dest" type.' 'ColorSpace.fillRgb: Unsupported "dest" type.'
); );
} }
let count = originalWidth * originalHeight; const count = originalWidth * originalHeight;
let rgbBuf = null; let rgbBuf = null;
let numComponentColors = 1 << bpc; const numComponentColors = 1 << bpc;
let needsResizing = originalHeight !== height || originalWidth !== width; const needsResizing = originalHeight !== height || originalWidth !== width;
if (this.isPassthrough(bpc)) { if (this.isPassthrough(bpc)) {
rgbBuf = comps; rgbBuf = comps;
@ -170,14 +170,14 @@ class ColorSpace {
// TODO it may be worth while to cache the color map. While running // TODO it may be worth while to cache the color map. While running
// testing I never hit a cache so I will leave that out for now (perhaps // testing I never hit a cache so I will leave that out for now (perhaps
// we are reparsing colorspaces too much?). // we are reparsing colorspaces too much?).
let allColors = const allColors =
bpc <= 8 bpc <= 8
? new Uint8Array(numComponentColors) ? new Uint8Array(numComponentColors)
: new Uint16Array(numComponentColors); : new Uint16Array(numComponentColors);
for (let i = 0; i < numComponentColors; i++) { for (let i = 0; i < numComponentColors; i++) {
allColors[i] = i; allColors[i] = i;
} }
let colorMap = new Uint8ClampedArray(numComponentColors * 3); const colorMap = new Uint8ClampedArray(numComponentColors * 3);
this.getRgbBuffer( this.getRgbBuffer(
allColors, allColors,
0, 0,
@ -260,12 +260,12 @@ class ColorSpace {
} }
static parse(cs, xref, res, pdfFunctionFactory) { static parse(cs, xref, res, pdfFunctionFactory) {
let IR = this.parseToIR(cs, xref, res, pdfFunctionFactory); const IR = this.parseToIR(cs, xref, res, pdfFunctionFactory);
return this.fromIR(IR); return this.fromIR(IR);
} }
static fromIR(IR) { static fromIR(IR) {
let name = Array.isArray(IR) ? IR[0] : IR; const name = Array.isArray(IR) ? IR[0] : IR;
let whitePoint, blackPoint, gamma; let whitePoint, blackPoint, gamma;
switch (name) { switch (name) {
@ -284,7 +284,7 @@ class ColorSpace {
whitePoint = IR[1]; whitePoint = IR[1];
blackPoint = IR[2]; blackPoint = IR[2];
gamma = IR[3]; gamma = IR[3];
let matrix = IR[4]; const matrix = IR[4];
return new CalRGBCS(whitePoint, blackPoint, gamma, matrix); return new CalRGBCS(whitePoint, blackPoint, gamma, matrix);
case "PatternCS": case "PatternCS":
let basePatternCS = IR[1]; let basePatternCS = IR[1];
@ -293,19 +293,19 @@ class ColorSpace {
} }
return new PatternCS(basePatternCS); return new PatternCS(basePatternCS);
case "IndexedCS": case "IndexedCS":
let baseIndexedCS = IR[1]; const baseIndexedCS = IR[1];
let hiVal = IR[2]; const hiVal = IR[2];
let lookup = IR[3]; const lookup = IR[3];
return new IndexedCS(this.fromIR(baseIndexedCS), hiVal, lookup); return new IndexedCS(this.fromIR(baseIndexedCS), hiVal, lookup);
case "AlternateCS": case "AlternateCS":
let numComps = IR[1]; const numComps = IR[1];
let alt = IR[2]; const alt = IR[2];
let tintFn = IR[3]; const tintFn = IR[3];
return new AlternateCS(numComps, this.fromIR(alt), tintFn); return new AlternateCS(numComps, this.fromIR(alt), tintFn);
case "LabCS": case "LabCS":
whitePoint = IR[1]; whitePoint = IR[1];
blackPoint = IR[2]; blackPoint = IR[2];
let range = IR[3]; const range = IR[3];
return new LabCS(whitePoint, blackPoint, range); return new LabCS(whitePoint, blackPoint, range);
default: default:
throw new FormatError(`Unknown colorspace name: ${name}`); throw new FormatError(`Unknown colorspace name: ${name}`);
@ -329,9 +329,9 @@ class ColorSpace {
return ["PatternCS", null]; return ["PatternCS", null];
default: default:
if (isDict(res)) { if (isDict(res)) {
let colorSpaces = res.get("ColorSpace"); const colorSpaces = res.get("ColorSpace");
if (isDict(colorSpaces)) { if (isDict(colorSpaces)) {
let resCS = colorSpaces.get(cs.name); const resCS = colorSpaces.get(cs.name);
if (resCS) { if (resCS) {
if (isName(resCS)) { if (isName(resCS)) {
return this.parseToIR(resCS, xref, res, pdfFunctionFactory); return this.parseToIR(resCS, xref, res, pdfFunctionFactory);
@ -345,7 +345,7 @@ class ColorSpace {
} }
} }
if (Array.isArray(cs)) { if (Array.isArray(cs)) {
let mode = xref.fetchIfRef(cs[0]).name; const mode = xref.fetchIfRef(cs[0]).name;
let numComps, params, alt, whitePoint, blackPoint, gamma; let numComps, params, alt, whitePoint, blackPoint, gamma;
switch (mode) { switch (mode) {
@ -369,18 +369,18 @@ class ColorSpace {
whitePoint = params.getArray("WhitePoint"); whitePoint = params.getArray("WhitePoint");
blackPoint = params.getArray("BlackPoint"); blackPoint = params.getArray("BlackPoint");
gamma = params.getArray("Gamma"); gamma = params.getArray("Gamma");
let matrix = params.getArray("Matrix"); const matrix = params.getArray("Matrix");
return ["CalRGBCS", whitePoint, blackPoint, gamma, matrix]; return ["CalRGBCS", whitePoint, blackPoint, gamma, matrix];
case "ICCBased": case "ICCBased":
let stream = xref.fetchIfRef(cs[1]); const stream = xref.fetchIfRef(cs[1]);
let dict = stream.dict; const dict = stream.dict;
numComps = dict.get("N"); numComps = dict.get("N");
alt = dict.get("Alternate"); alt = dict.get("Alternate");
if (alt) { if (alt) {
let altIR = this.parseToIR(alt, xref, res, pdfFunctionFactory); const altIR = this.parseToIR(alt, xref, res, pdfFunctionFactory);
// Parse the /Alternate CS to ensure that the number of components // Parse the /Alternate CS to ensure that the number of components
// are correct, and also (indirectly) that it is not a PatternCS. // are correct, and also (indirectly) that it is not a PatternCS.
let altCS = this.fromIR(altIR, pdfFunctionFactory); const altCS = this.fromIR(altIR, pdfFunctionFactory);
if (altCS.numComps === numComps) { if (altCS.numComps === numComps) {
return altIR; return altIR;
} }
@ -407,13 +407,13 @@ class ColorSpace {
return ["PatternCS", basePatternCS]; return ["PatternCS", basePatternCS];
case "Indexed": case "Indexed":
case "I": case "I":
let baseIndexedCS = this.parseToIR( const baseIndexedCS = this.parseToIR(
cs[1], cs[1],
xref, xref,
res, res,
pdfFunctionFactory pdfFunctionFactory
); );
let hiVal = xref.fetchIfRef(cs[2]) + 1; const hiVal = xref.fetchIfRef(cs[2]) + 1;
let lookup = xref.fetchIfRef(cs[3]); let lookup = xref.fetchIfRef(cs[3]);
if (isStream(lookup)) { if (isStream(lookup)) {
lookup = lookup.getBytes(); lookup = lookup.getBytes();
@ -421,16 +421,16 @@ class ColorSpace {
return ["IndexedCS", baseIndexedCS, hiVal, lookup]; return ["IndexedCS", baseIndexedCS, hiVal, lookup];
case "Separation": case "Separation":
case "DeviceN": case "DeviceN":
let name = xref.fetchIfRef(cs[1]); const name = xref.fetchIfRef(cs[1]);
numComps = Array.isArray(name) ? name.length : 1; numComps = Array.isArray(name) ? name.length : 1;
alt = this.parseToIR(cs[2], xref, res, pdfFunctionFactory); alt = this.parseToIR(cs[2], xref, res, pdfFunctionFactory);
let tintFn = pdfFunctionFactory.create(xref.fetchIfRef(cs[3])); const tintFn = pdfFunctionFactory.create(xref.fetchIfRef(cs[3]));
return ["AlternateCS", numComps, alt, tintFn]; return ["AlternateCS", numComps, alt, tintFn];
case "Lab": case "Lab":
params = xref.fetchIfRef(cs[1]); params = xref.fetchIfRef(cs[1]);
whitePoint = params.getArray("WhitePoint"); whitePoint = params.getArray("WhitePoint");
blackPoint = params.getArray("BlackPoint"); blackPoint = params.getArray("BlackPoint");
let range = params.getArray("Range"); const range = params.getArray("Range");
return ["LabCS", whitePoint, blackPoint, range]; return ["LabCS", whitePoint, blackPoint, range];
default: default:
throw new FormatError(`unimplemented color space object "${mode}"`); throw new FormatError(`unimplemented color space object "${mode}"`);
@ -505,7 +505,7 @@ class AlternateCS extends ColorSpace {
'AlternateCS.getRgbItem: Unsupported "dest" type.' 'AlternateCS.getRgbItem: Unsupported "dest" type.'
); );
} }
let tmpBuf = this.tmpBuf; const tmpBuf = this.tmpBuf;
this.tintFn(src, srcOffset, tmpBuf, 0); this.tintFn(src, srcOffset, tmpBuf, 0);
this.base.getRgbItem(tmpBuf, 0, dest, destOffset); this.base.getRgbItem(tmpBuf, 0, dest, destOffset);
} }
@ -520,21 +520,21 @@ class AlternateCS extends ColorSpace {
'AlternateCS.getRgbBuffer: Unsupported "dest" type.' 'AlternateCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let tintFn = this.tintFn; const tintFn = this.tintFn;
let base = this.base; const base = this.base;
let scale = 1 / ((1 << bits) - 1); const scale = 1 / ((1 << bits) - 1);
let baseNumComps = base.numComps; const baseNumComps = base.numComps;
let usesZeroToOneRange = base.usesZeroToOneRange; const usesZeroToOneRange = base.usesZeroToOneRange;
let isPassthrough = const isPassthrough =
(base.isPassthrough(8) || !usesZeroToOneRange) && alpha01 === 0; (base.isPassthrough(8) || !usesZeroToOneRange) && alpha01 === 0;
let pos = isPassthrough ? destOffset : 0; let pos = isPassthrough ? destOffset : 0;
let baseBuf = isPassthrough const baseBuf = isPassthrough
? dest ? dest
: new Uint8ClampedArray(baseNumComps * count); : new Uint8ClampedArray(baseNumComps * count);
let numComps = this.numComps; const numComps = this.numComps;
let scaled = new Float32Array(numComps); const scaled = new Float32Array(numComps);
let tinted = new Float32Array(baseNumComps); const tinted = new Float32Array(baseNumComps);
let i, j; let i, j;
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
@ -585,12 +585,12 @@ class IndexedCS extends ColorSpace {
this.base = base; this.base = base;
this.highVal = highVal; this.highVal = highVal;
let baseNumComps = base.numComps; const baseNumComps = base.numComps;
let length = baseNumComps * highVal; const length = baseNumComps * highVal;
if (isStream(lookup)) { if (isStream(lookup)) {
this.lookup = new Uint8Array(length); this.lookup = new Uint8Array(length);
let bytes = lookup.getBytes(length); const bytes = lookup.getBytes(length);
this.lookup.set(bytes); this.lookup.set(bytes);
} else if (isString(lookup)) { } else if (isString(lookup)) {
this.lookup = new Uint8Array(length); this.lookup = new Uint8Array(length);
@ -614,8 +614,8 @@ class IndexedCS extends ColorSpace {
'IndexedCS.getRgbItem: Unsupported "dest" type.' 'IndexedCS.getRgbItem: Unsupported "dest" type.'
); );
} }
let numComps = this.base.numComps; const numComps = this.base.numComps;
let start = src[srcOffset] * numComps; const start = src[srcOffset] * numComps;
this.base.getRgbBuffer(this.lookup, start, 1, dest, destOffset, 8, 0); this.base.getRgbBuffer(this.lookup, start, 1, dest, destOffset, 8, 0);
} }
@ -629,13 +629,13 @@ class IndexedCS extends ColorSpace {
'IndexedCS.getRgbBuffer: Unsupported "dest" type.' 'IndexedCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let base = this.base; const base = this.base;
let numComps = base.numComps; const numComps = base.numComps;
let outputDelta = base.getOutputLength(numComps, alpha01); const outputDelta = base.getOutputLength(numComps, alpha01);
let lookup = this.lookup; const lookup = this.lookup;
for (let i = 0; i < count; ++i) { for (let i = 0; i < count; ++i) {
let lookupPos = src[srcOffset++] * numComps; const lookupPos = src[srcOffset++] * numComps;
base.getRgbBuffer(lookup, lookupPos, 1, dest, destOffset, 8, alpha01); base.getRgbBuffer(lookup, lookupPos, 1, dest, destOffset, 8, alpha01);
destOffset += outputDelta; destOffset += outputDelta;
} }
@ -679,7 +679,7 @@ class DeviceGrayCS extends ColorSpace {
'DeviceGrayCS.getRgbItem: Unsupported "dest" type.' 'DeviceGrayCS.getRgbItem: Unsupported "dest" type.'
); );
} }
let c = src[srcOffset] * 255; const c = src[srcOffset] * 255;
dest[destOffset] = dest[destOffset + 1] = dest[destOffset + 2] = c; dest[destOffset] = dest[destOffset + 1] = dest[destOffset + 2] = c;
} }
@ -693,11 +693,11 @@ class DeviceGrayCS extends ColorSpace {
'DeviceGrayCS.getRgbBuffer: Unsupported "dest" type.' 'DeviceGrayCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let scale = 255 / ((1 << bits) - 1); const scale = 255 / ((1 << bits) - 1);
let j = srcOffset, let j = srcOffset,
q = destOffset; q = destOffset;
for (let i = 0; i < count; ++i) { for (let i = 0; i < count; ++i) {
let c = scale * src[j++]; const c = scale * src[j++];
dest[q++] = c; dest[q++] = c;
dest[q++] = c; dest[q++] = c;
dest[q++] = c; dest[q++] = c;
@ -747,7 +747,7 @@ class DeviceRgbCS extends ColorSpace {
dest.set(src.subarray(srcOffset, srcOffset + count * 3), destOffset); dest.set(src.subarray(srcOffset, srcOffset + count * 3), destOffset);
return; return;
} }
let scale = 255 / ((1 << bits) - 1); const scale = 255 / ((1 << bits) - 1);
let j = srcOffset, let j = srcOffset,
q = destOffset; q = destOffset;
for (let i = 0; i < count; ++i) { for (let i = 0; i < count; ++i) {
@ -778,10 +778,10 @@ const DeviceCmykCS = (function DeviceCmykCSClosure() {
// CMYK color conversion using the estimation below: // CMYK color conversion using the estimation below:
// f(A, B,.. N) = Acc+Bcm+Ccy+Dck+c+Fmm+Gmy+Hmk+Im+Jyy+Kyk+Ly+Mkk+Nk+255 // f(A, B,.. N) = Acc+Bcm+Ccy+Dck+c+Fmm+Gmy+Hmk+Im+Jyy+Kyk+Ly+Mkk+Nk+255
function convertToRgb(src, srcOffset, srcScale, dest, destOffset) { function convertToRgb(src, srcOffset, srcScale, dest, destOffset) {
let c = src[srcOffset] * srcScale; const c = src[srcOffset] * srcScale;
let m = src[srcOffset + 1] * srcScale; const m = src[srcOffset + 1] * srcScale;
let y = src[srcOffset + 2] * srcScale; const y = src[srcOffset + 2] * srcScale;
let k = src[srcOffset + 3] * srcScale; const k = src[srcOffset + 3] * srcScale;
dest[destOffset] = dest[destOffset] =
255 + 255 +
@ -864,7 +864,7 @@ const DeviceCmykCS = (function DeviceCmykCSClosure() {
'DeviceCmykCS.getRgbBuffer: Unsupported "dest" type.' 'DeviceCmykCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let scale = 1 / ((1 << bits) - 1); const scale = 1 / ((1 << bits) - 1);
for (let i = 0; i < count; i++) { for (let i = 0; i < count; i++) {
convertToRgb(src, srcOffset, scale, dest, destOffset); convertToRgb(src, srcOffset, scale, dest, destOffset);
srcOffset += 4; srcOffset += 4;
@ -888,15 +888,15 @@ const CalGrayCS = (function CalGrayCSClosure() {
function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) { function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) {
// A represents a gray component of a calibrated gray space. // A represents a gray component of a calibrated gray space.
// A <---> AG in the spec // A <---> AG in the spec
let A = src[srcOffset] * scale; const A = src[srcOffset] * scale;
let AG = Math.pow(A, cs.G); const AG = Math.pow(A, cs.G);
// Computes L as per spec. ( = cs.YW * AG ) // Computes L as per spec. ( = cs.YW * AG )
// Except if other than default BlackPoint values are used. // Except if other than default BlackPoint values are used.
let L = cs.YW * AG; const L = cs.YW * AG;
// http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html, Ch 4. // http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html, Ch 4.
// Convert values to rgb range [0, 255]. // Convert values to rgb range [0, 255].
let val = Math.max(295.8 * Math.pow(L, 0.333333333333333333) - 40.8, 0); const val = Math.max(295.8 * Math.pow(L, 0.333333333333333333) - 40.8, 0);
dest[destOffset] = val; dest[destOffset] = val;
dest[destOffset + 1] = val; dest[destOffset + 1] = val;
dest[destOffset + 2] = val; dest[destOffset + 2] = val;
@ -977,7 +977,7 @@ const CalGrayCS = (function CalGrayCSClosure() {
'CalGrayCS.getRgbBuffer: Unsupported "dest" type.' 'CalGrayCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let scale = 1 / ((1 << bits) - 1); const scale = 1 / ((1 << bits) - 1);
for (let i = 0; i < count; ++i) { for (let i = 0; i < count; ++i) {
convertToRgb(this, src, srcOffset, dest, destOffset, scale); convertToRgb(this, src, srcOffset, dest, destOffset, scale);
@ -1022,9 +1022,9 @@ const CalRGBCS = (function CalRGBCSClosure() {
const FLAT_WHITEPOINT_MATRIX = new Float32Array([1, 1, 1]); const FLAT_WHITEPOINT_MATRIX = new Float32Array([1, 1, 1]);
let tempNormalizeMatrix = new Float32Array(3); const tempNormalizeMatrix = new Float32Array(3);
let tempConvertMatrix1 = new Float32Array(3); const tempConvertMatrix1 = new Float32Array(3);
let tempConvertMatrix2 = new Float32Array(3); const tempConvertMatrix2 = new Float32Array(3);
const DECODE_L_CONSTANT = Math.pow((8 + 16) / 116, 3) / 8.0; const DECODE_L_CONSTANT = Math.pow((8 + 16) / 116, 3) / 8.0;
@ -1090,25 +1090,25 @@ const CalRGBCS = (function CalRGBCSClosure() {
// http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/ // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/
// AdobeBPC.pdf. // AdobeBPC.pdf.
// The destination blackPoint is the default blackPoint [0, 0, 0]. // The destination blackPoint is the default blackPoint [0, 0, 0].
let zeroDecodeL = decodeL(0); const zeroDecodeL = decodeL(0);
let X_DST = zeroDecodeL; const X_DST = zeroDecodeL;
let X_SRC = decodeL(sourceBlackPoint[0]); const X_SRC = decodeL(sourceBlackPoint[0]);
let Y_DST = zeroDecodeL; const Y_DST = zeroDecodeL;
let Y_SRC = decodeL(sourceBlackPoint[1]); const Y_SRC = decodeL(sourceBlackPoint[1]);
let Z_DST = zeroDecodeL; const Z_DST = zeroDecodeL;
let Z_SRC = decodeL(sourceBlackPoint[2]); const Z_SRC = decodeL(sourceBlackPoint[2]);
let X_Scale = (1 - X_DST) / (1 - X_SRC); const X_Scale = (1 - X_DST) / (1 - X_SRC);
let X_Offset = 1 - X_Scale; const X_Offset = 1 - X_Scale;
let Y_Scale = (1 - Y_DST) / (1 - Y_SRC); const Y_Scale = (1 - Y_DST) / (1 - Y_SRC);
let Y_Offset = 1 - Y_Scale; const Y_Offset = 1 - Y_Scale;
let Z_Scale = (1 - Z_DST) / (1 - Z_SRC); const Z_Scale = (1 - Z_DST) / (1 - Z_SRC);
let Z_Offset = 1 - Z_Scale; const Z_Offset = 1 - Z_Scale;
result[0] = XYZ_Flat[0] * X_Scale + X_Offset; result[0] = XYZ_Flat[0] * X_Scale + X_Offset;
result[1] = XYZ_Flat[1] * Y_Scale + Y_Offset; result[1] = XYZ_Flat[1] * Y_Scale + Y_Offset;
@ -1125,20 +1125,20 @@ const CalRGBCS = (function CalRGBCSClosure() {
return; return;
} }
let LMS = result; const LMS = result;
matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS); matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS);
let LMS_Flat = tempNormalizeMatrix; const LMS_Flat = tempNormalizeMatrix;
convertToFlat(sourceWhitePoint, LMS, LMS_Flat); convertToFlat(sourceWhitePoint, LMS, LMS_Flat);
matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_Flat, result); matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_Flat, result);
} }
function normalizeWhitePointToD65(sourceWhitePoint, XYZ_In, result) { function normalizeWhitePointToD65(sourceWhitePoint, XYZ_In, result) {
let LMS = result; const LMS = result;
matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS); matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS);
let LMS_D65 = tempNormalizeMatrix; const LMS_D65 = tempNormalizeMatrix;
convertToD65(sourceWhitePoint, LMS, LMS_D65); convertToD65(sourceWhitePoint, LMS, LMS_D65);
matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_D65, result); matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_D65, result);
@ -1147,41 +1147,41 @@ const CalRGBCS = (function CalRGBCSClosure() {
function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) { function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) {
// A, B and C represent a red, green and blue components of a calibrated // A, B and C represent a red, green and blue components of a calibrated
// rgb space. // rgb space.
let A = adjustToRange(0, 1, src[srcOffset] * scale); const A = adjustToRange(0, 1, src[srcOffset] * scale);
let B = adjustToRange(0, 1, src[srcOffset + 1] * scale); const B = adjustToRange(0, 1, src[srcOffset + 1] * scale);
let C = adjustToRange(0, 1, src[srcOffset + 2] * scale); const C = adjustToRange(0, 1, src[srcOffset + 2] * scale);
// A <---> AGR in the spec // A <---> AGR in the spec
// B <---> BGG in the spec // B <---> BGG in the spec
// C <---> CGB in the spec // C <---> CGB in the spec
let AGR = Math.pow(A, cs.GR); const AGR = Math.pow(A, cs.GR);
let BGG = Math.pow(B, cs.GG); const BGG = Math.pow(B, cs.GG);
let CGB = Math.pow(C, cs.GB); const CGB = Math.pow(C, cs.GB);
// Computes intermediate variables L, M, N as per spec. // Computes intermediate variables L, M, N as per spec.
// To decode X, Y, Z values map L, M, N directly to them. // To decode X, Y, Z values map L, M, N directly to them.
let X = cs.MXA * AGR + cs.MXB * BGG + cs.MXC * CGB; const X = cs.MXA * AGR + cs.MXB * BGG + cs.MXC * CGB;
let Y = cs.MYA * AGR + cs.MYB * BGG + cs.MYC * CGB; const Y = cs.MYA * AGR + cs.MYB * BGG + cs.MYC * CGB;
let Z = cs.MZA * AGR + cs.MZB * BGG + cs.MZC * CGB; const Z = cs.MZA * AGR + cs.MZB * BGG + cs.MZC * CGB;
// The following calculations are based on this document: // The following calculations are based on this document:
// http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/ // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/
// AdobeBPC.pdf. // AdobeBPC.pdf.
let XYZ = tempConvertMatrix1; const XYZ = tempConvertMatrix1;
XYZ[0] = X; XYZ[0] = X;
XYZ[1] = Y; XYZ[1] = Y;
XYZ[2] = Z; XYZ[2] = Z;
let XYZ_Flat = tempConvertMatrix2; const XYZ_Flat = tempConvertMatrix2;
normalizeWhitePointToFlat(cs.whitePoint, XYZ, XYZ_Flat); normalizeWhitePointToFlat(cs.whitePoint, XYZ, XYZ_Flat);
let XYZ_Black = tempConvertMatrix1; const XYZ_Black = tempConvertMatrix1;
compensateBlackPoint(cs.blackPoint, XYZ_Flat, XYZ_Black); compensateBlackPoint(cs.blackPoint, XYZ_Flat, XYZ_Black);
let XYZ_D65 = tempConvertMatrix2; const XYZ_D65 = tempConvertMatrix2;
normalizeWhitePointToD65(FLAT_WHITEPOINT_MATRIX, XYZ_Black, XYZ_D65); normalizeWhitePointToD65(FLAT_WHITEPOINT_MATRIX, XYZ_Black, XYZ_D65);
let SRGB = tempConvertMatrix1; const SRGB = tempConvertMatrix1;
matrixProduct(SRGB_D65_XYZ_TO_RGB_MATRIX, XYZ_D65, SRGB); matrixProduct(SRGB_D65_XYZ_TO_RGB_MATRIX, XYZ_D65, SRGB);
// Convert the values to rgb range [0, 255]. // Convert the values to rgb range [0, 255].
@ -1204,14 +1204,14 @@ const CalRGBCS = (function CalRGBCSClosure() {
matrix = matrix || new Float32Array([1, 0, 0, 0, 1, 0, 0, 0, 1]); matrix = matrix || new Float32Array([1, 0, 0, 0, 1, 0, 0, 0, 1]);
// Translate arguments to spec variables. // Translate arguments to spec variables.
let XW = whitePoint[0]; const XW = whitePoint[0];
let YW = whitePoint[1]; const YW = whitePoint[1];
let ZW = whitePoint[2]; const ZW = whitePoint[2];
this.whitePoint = whitePoint; this.whitePoint = whitePoint;
let XB = blackPoint[0]; const XB = blackPoint[0];
let YB = blackPoint[1]; const YB = blackPoint[1];
let ZB = blackPoint[2]; const ZB = blackPoint[2];
this.blackPoint = blackPoint; this.blackPoint = blackPoint;
this.GR = gamma[0]; this.GR = gamma[0];
@ -1276,7 +1276,7 @@ const CalRGBCS = (function CalRGBCSClosure() {
'CalRGBCS.getRgbBuffer: Unsupported "dest" type.' 'CalRGBCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let scale = 1 / ((1 << bits) - 1); const scale = 1 / ((1 << bits) - 1);
for (let i = 0; i < count; ++i) { for (let i = 0; i < count; ++i) {
convertToRgb(this, src, srcOffset, dest, destOffset, scale); convertToRgb(this, src, srcOffset, dest, destOffset, scale);
@ -1343,13 +1343,13 @@ const LabCS = (function LabCSClosure() {
} }
// Computes intermediate variables X,Y,Z as per spec // Computes intermediate variables X,Y,Z as per spec
let M = (Ls + 16) / 116; const M = (Ls + 16) / 116;
let L = M + as / 500; const L = M + as / 500;
let N = M - bs / 200; const N = M - bs / 200;
let X = cs.XW * fn_g(L); const X = cs.XW * fn_g(L);
let Y = cs.YW * fn_g(M); const Y = cs.YW * fn_g(M);
let Z = cs.ZW * fn_g(N); const Z = cs.ZW * fn_g(N);
let r, g, b; let r, g, b;
// Using different conversions for D50 and D65 white points, // Using different conversions for D50 and D65 white points,
@ -1442,7 +1442,7 @@ const LabCS = (function LabCSClosure() {
'LabCS.getRgbBuffer: Unsupported "dest" type.' 'LabCS.getRgbBuffer: Unsupported "dest" type.'
); );
} }
let maxVal = (1 << bits) - 1; const maxVal = (1 << bits) - 1;
for (let i = 0; i < count; i++) { for (let i = 0; i < count; i++) {
convertToRgb(this, src, srcOffset, maxVal, dest, destOffset); convertToRgb(this, src, srcOffset, maxVal, dest, destOffset);
srcOffset += 3; srcOffset += 3;

4
src/core/core_utils.js
View File

@ -110,8 +110,8 @@ function toRomanNumerals(number, lowerCase = false) {
Number.isInteger(number) && number > 0, Number.isInteger(number) && number > 0,
"The number should be a positive integer." "The number should be a positive integer."
); );
let pos, const romanBuf = [];
romanBuf = []; let pos;
// Thousands // Thousands
while (number >= 1000) { while (number >= 1000) {
number -= 1000; number -= 1000;

52
src/core/crypto.js
View File

@ -825,7 +825,7 @@ class AESBaseCipher {
_decrypt(input, key) { _decrypt(input, key) {
let t, u, v; let t, u, v;
let state = new Uint8Array(16); const state = new Uint8Array(16);
state.set(input); state.set(input);
// AddRoundKey // AddRoundKey
@ -862,10 +862,10 @@ class AESBaseCipher {
} }
// InvMixColumns // InvMixColumns
for (let j = 0; j < 16; j += 4) { for (let j = 0; j < 16; j += 4) {
let s0 = this._mix[state[j]]; const s0 = this._mix[state[j]];
let s1 = this._mix[state[j + 1]]; const s1 = this._mix[state[j + 1]];
let s2 = this._mix[state[j + 2]]; const s2 = this._mix[state[j + 2]];
let s3 = this._mix[state[j + 3]]; const s3 = this._mix[state[j + 3]];
t = t =
s0 ^ s0 ^
(s1 >>> 8) ^ (s1 >>> 8) ^
@ -912,7 +912,7 @@ class AESBaseCipher {
const s = this._s; const s = this._s;
let t, u, v; let t, u, v;
let state = new Uint8Array(16); const state = new Uint8Array(16);
state.set(input); state.set(input);
for (let j = 0; j < 16; ++j) { for (let j = 0; j < 16; ++j) {
@ -946,10 +946,10 @@ class AESBaseCipher {
state[15] = t; state[15] = t;
// MixColumns // MixColumns
for (let j = 0; j < 16; j += 4) { for (let j = 0; j < 16; j += 4) {
let s0 = state[j + 0]; const s0 = state[j + 0];
let s1 = state[j + 1]; const s1 = state[j + 1];
let s2 = state[j + 2]; const s2 = state[j + 2];
let s3 = state[j + 3]; const s3 = state[j + 3];
t = s0 ^ s1 ^ s2 ^ s3; t = s0 ^ s1 ^ s2 ^ s3;
state[j + 0] ^= t ^ this._mixCol[s0 ^ s1]; state[j + 0] ^= t ^ this._mixCol[s0 ^ s1];
state[j + 1] ^= t ^ this._mixCol[s1 ^ s2]; state[j + 1] ^= t ^ this._mixCol[s1 ^ s2];
@ -993,11 +993,11 @@ class AESBaseCipher {
} }
_decryptBlock2(data, finalize) { _decryptBlock2(data, finalize) {
let sourceLength = data.length; const sourceLength = data.length;
let buffer = this.buffer, let buffer = this.buffer,
bufferLength = this.bufferPosition; bufferLength = this.bufferPosition;
let result = [], const result = [];
iv = this.iv; let iv = this.iv;
for (let i = 0; i < sourceLength; ++i) { for (let i = 0; i < sourceLength; ++i) {
buffer[bufferLength] = data[i]; buffer[bufferLength] = data[i];
@ -1006,7 +1006,7 @@ class AESBaseCipher {
continue; continue;
} }
// buffer is full, decrypting // buffer is full, decrypting
let plain = this._decrypt(buffer, this._key); const plain = this._decrypt(buffer, this._key);
// xor-ing the IV vector to get plain text // xor-ing the IV vector to get plain text
for (let j = 0; j < 16; ++j) { for (let j = 0; j < 16; ++j) {
plain[j] ^= iv[j]; plain[j] ^= iv[j];
@ -1027,7 +1027,7 @@ class AESBaseCipher {
let outputLength = 16 * result.length; let outputLength = 16 * result.length;
if (finalize) { if (finalize) {
// undo a padding that is described in RFC 2898 // undo a padding that is described in RFC 2898
let lastBlock = result[result.length - 1]; const lastBlock = result[result.length - 1];
let psLen = lastBlock[15]; let psLen = lastBlock[15];
if (psLen <= 16) { if (psLen <= 16) {
for (let i = 15, ii = 16 - psLen; i >= ii; --i) { for (let i = 15, ii = 16 - psLen; i >= ii; --i) {
@ -1041,7 +1041,7 @@ class AESBaseCipher {
result[result.length - 1] = lastBlock.subarray(0, 16 - psLen); result[result.length - 1] = lastBlock.subarray(0, 16 - psLen);
} }
} }
let output = new Uint8Array(outputLength); const output = new Uint8Array(outputLength);
for (let i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) { for (let i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) {
output.set(result[i], j); output.set(result[i], j);
} }
@ -1049,9 +1049,9 @@ class AESBaseCipher {
} }
decryptBlock(data, finalize, iv = null) { decryptBlock(data, finalize, iv = null) {
let sourceLength = data.length; const sourceLength = data.length;
let buffer = this.buffer, const buffer = this.buffer;
bufferLength = this.bufferPosition; let bufferLength = this.bufferPosition;
// If an IV is not supplied, wait for IV values. They are at the start // If an IV is not supplied, wait for IV values. They are at the start
// of the stream. // of the stream.
if (iv) { if (iv) {
@ -1080,10 +1080,10 @@ class AESBaseCipher {
} }
encrypt(data, iv) { encrypt(data, iv) {
let sourceLength = data.length; const sourceLength = data.length;
let buffer = this.buffer, let buffer = this.buffer,
bufferLength = this.bufferPosition; bufferLength = this.bufferPosition;
let result = []; const result = [];
if (!iv) { if (!iv) {
iv = new Uint8Array(16); iv = new Uint8Array(16);
@ -1099,7 +1099,7 @@ class AESBaseCipher {
} }
// buffer is full, encrypting // buffer is full, encrypting
let cipher = this._encrypt(buffer, this._key); const cipher = this._encrypt(buffer, this._key);
iv = cipher; iv = cipher;
result.push(cipher); result.push(cipher);
buffer = new Uint8Array(16); buffer = new Uint8Array(16);
@ -1113,8 +1113,8 @@ class AESBaseCipher {
return new Uint8Array(0); return new Uint8Array(0);
} }
// combining plain text blocks into one // combining plain text blocks into one
let outputLength = 16 * result.length; const outputLength = 16 * result.length;
let output = new Uint8Array(outputLength); const output = new Uint8Array(outputLength);
for (let i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) { for (let i = 0, j = 0, ii = result.length; i < ii; ++i, j += 16) {
output.set(result[i], j); output.set(result[i], j);
} }
@ -1163,7 +1163,7 @@ class AES128Cipher extends AESBaseCipher {
const s = this._s; const s = this._s;
const rcon = this._rcon; const rcon = this._rcon;
let result = new Uint8Array(b); const result = new Uint8Array(b);
result.set(cipherKey); result.set(cipherKey);
for (let j = 16, i = 1; j < b; ++i) { for (let j = 16, i = 1; j < b; ++i) {
@ -1208,7 +1208,7 @@ class AES256Cipher extends AESBaseCipher {
const b = 240; const b = 240;
const s = this._s; const s = this._s;
let result = new Uint8Array(b); const result = new Uint8Array(b);
result.set(cipherKey); result.set(cipherKey);
let r = 1; let r = 1;

78
src/core/evaluator.js
View File

@ -472,7 +472,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
!(image instanceof JpegStream) && !(image instanceof JpegStream) &&
w + h < SMALL_IMAGE_DIMENSIONS w + h < SMALL_IMAGE_DIMENSIONS
) { ) {
let imageObj = new PDFImage({ const imageObj = new PDFImage({
xref: this.xref, xref: this.xref,
res: resources, res: resources,
image, image,
@ -652,7 +652,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// we will build a map of integer values in range 0..255 to be fast. // we will build a map of integer values in range 0..255 to be fast.
var transferObj = smask.get("TR"); var transferObj = smask.get("TR");
if (isPDFFunction(transferObj)) { if (isPDFFunction(transferObj)) {
let transferFn = this.pdfFunctionFactory.create(transferObj); const transferFn = this.pdfFunctionFactory.create(transferObj);
var transferMap = new Uint8Array(256); var transferMap = new Uint8Array(256);
var tmp = new Float32Array(1); var tmp = new Float32Array(1);
for (var i = 0; i < 256; i++) { for (var i = 0; i < 256; i++) {
@ -683,11 +683,11 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
task task
) { ) {
// Create an IR of the pattern code. // Create an IR of the pattern code.
let tilingOpList = new OperatorList(); const tilingOpList = new OperatorList();
// Merge the available resources, to prevent issues when the patternDict // Merge the available resources, to prevent issues when the patternDict
// is missing some /Resources entries (fixes issue6541.pdf). // is missing some /Resources entries (fixes issue6541.pdf).
let resourcesArray = [patternDict.get("Resources"), resources]; const resourcesArray = [patternDict.get("Resources"), resources];
let patternResources = Dict.merge(this.xref, resourcesArray); const patternResources = Dict.merge(this.xref, resourcesArray);
return this.getOperatorList({ return this.getOperatorList({
stream: pattern, stream: pattern,
@ -807,8 +807,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var gStateKeys = gState.getKeys(); var gStateKeys = gState.getKeys();
var promise = Promise.resolve(); var promise = Promise.resolve();
for (var i = 0, ii = gStateKeys.length; i < ii; i++) { for (var i = 0, ii = gStateKeys.length; i < ii; i++) {
let key = gStateKeys[i]; const key = gStateKeys[i];
let value = gState.get(key); const value = gState.get(key);
switch (key) { switch (key) {
case "Type": case "Type":
break; break;
@ -1206,7 +1206,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
} }
return new Promise(function promiseBody(resolve, reject) { return new Promise(function promiseBody(resolve, reject) {
let next = function(promise) { const next = function(promise) {
Promise.all([promise, operatorList.ready]).then(function() { Promise.all([promise, operatorList.ready]).then(function() {
try { try {
promiseBody(resolve, reject); promiseBody(resolve, reject);
@ -1252,7 +1252,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
); );
} }
let xobj = xobjs.get(name); const xobj = xobjs.get(name);
if (!xobj) { if (!xobj) {
operatorList.addOp(fn, args); operatorList.addOp(fn, args);
resolveXObject(); resolveXObject();
@ -1262,7 +1262,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
throw new FormatError("XObject should be a stream"); throw new FormatError("XObject should be a stream");
} }
let type = xobj.dict.get("Subtype"); const type = xobj.dict.get("Subtype");
if (!isName(type)) { if (!isName(type)) {
throw new FormatError("XObject should have a Name subtype"); throw new FormatError("XObject should have a Name subtype");
} }
@ -1887,7 +1887,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
} }
function enqueueChunk() { function enqueueChunk() {
let length = textContent.items.length; const length = textContent.items.length;
if (length > 0) { if (length > 0) {
sink.enqueue(textContent, length); sink.enqueue(textContent, length);
textContent.items = []; textContent.items = [];
@ -1898,7 +1898,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var timeSlotManager = new TimeSlotManager(); var timeSlotManager = new TimeSlotManager();
return new Promise(function promiseBody(resolve, reject) { return new Promise(function promiseBody(resolve, reject) {
let next = function(promise) { const next = function(promise) {
enqueueChunk(); enqueueChunk();
Promise.all([promise, sink.ready]).then(function() { Promise.all([promise, sink.ready]).then(function() {
try { try {
@ -2142,7 +2142,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
); );
} }
let xobj = xobjs.get(name); const xobj = xobjs.get(name);
if (!xobj) { if (!xobj) {
resolveXObject(); resolveXObject();
return; return;
@ -2151,7 +2151,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
throw new FormatError("XObject should be a stream"); throw new FormatError("XObject should be a stream");
} }
let type = xobj.dict.get("Subtype"); const type = xobj.dict.get("Subtype");
if (!isName(type)) { if (!isName(type)) {
throw new FormatError("XObject should have a Name subtype"); throw new FormatError("XObject should have a Name subtype");
} }
@ -2167,10 +2167,10 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// data can otherwise prevent `restore` operators from // data can otherwise prevent `restore` operators from
// executing. // executing.
// NOTE: Only an issue when `options.ignoreErrors === true`. // NOTE: Only an issue when `options.ignoreErrors === true`.
let currentState = stateManager.state.clone(); const currentState = stateManager.state.clone();
let xObjStateManager = new StateManager(currentState); const xObjStateManager = new StateManager(currentState);
let matrix = xobj.dict.getArray("Matrix"); const matrix = xobj.dict.getArray("Matrix");
if (Array.isArray(matrix) && matrix.length === 6) { if (Array.isArray(matrix) && matrix.length === 6) {
xObjStateManager.transform(matrix); xObjStateManager.transform(matrix);
} }
@ -2178,7 +2178,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// Enqueue the `textContent` chunk before parsing the /Form // Enqueue the `textContent` chunk before parsing the /Form
// XObject. // XObject.
enqueueChunk(); enqueueChunk();
let sinkWrapper = { const sinkWrapper = {
enqueueInvoked: false, enqueueInvoked: false,
enqueue(chunk, size) { enqueue(chunk, size) {
@ -2284,8 +2284,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
baseDict, baseDict,
properties properties
) { ) {
let xref = this.xref, const xref = this.xref;
cidToGidBytes; let cidToGidBytes;
// 9.10.2 // 9.10.2
var toUnicode = dict.get("ToUnicode") || baseDict.get("ToUnicode"); var toUnicode = dict.get("ToUnicode") || baseDict.get("ToUnicode");
var toUnicodePromise = toUnicode var toUnicodePromise = toUnicode
@ -2413,15 +2413,13 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
_buildSimpleFontToUnicode(properties, forceGlyphs = false) { _buildSimpleFontToUnicode(properties, forceGlyphs = false) {
assert(!properties.composite, "Must be a simple font."); assert(!properties.composite, "Must be a simple font.");
let toUnicode = [], const toUnicode = [];
charcode, const encoding = properties.defaultEncoding.slice();
glyphName; const baseEncodingName = properties.baseEncodingName;
let encoding = properties.defaultEncoding.slice();
let baseEncodingName = properties.baseEncodingName;
// Merge in the differences array. // Merge in the differences array.
let differences = properties.differences; const differences = properties.differences;
for (charcode in differences) { for (const charcode in differences) {
glyphName = differences[charcode]; const glyphName = differences[charcode];
if (glyphName === ".notdef") { if (glyphName === ".notdef") {
// Skip .notdef to prevent rendering errors, e.g. boxes appearing // Skip .notdef to prevent rendering errors, e.g. boxes appearing
// where there should be spaces (fixes issue5256.pdf). // where there should be spaces (fixes issue5256.pdf).
@ -2429,10 +2427,10 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
} }
encoding[charcode] = glyphName; encoding[charcode] = glyphName;
} }
let glyphsUnicodeMap = getGlyphsUnicode(); const glyphsUnicodeMap = getGlyphsUnicode();
for (charcode in encoding) { for (const charcode in encoding) {
// a) Map the character code to a character name. // a) Map the character code to a character name.
glyphName = encoding[charcode]; let glyphName = encoding[charcode];
// b) Look up the character name in the Adobe Glyph List (see the // b) Look up the character name in the Adobe Glyph List (see the
// Bibliography) to obtain the corresponding Unicode value. // Bibliography) to obtain the corresponding Unicode value.
if (glyphName === "") { if (glyphName === "") {
@ -2482,7 +2480,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
break; break;
default: default:
// 'uniXXXX'/'uXXXX{XX}' glyphs // 'uniXXXX'/'uXXXX{XX}' glyphs
let unicode = getUnicodeForGlyph(glyphName, glyphsUnicodeMap); const unicode = getUnicodeForGlyph(glyphName, glyphsUnicodeMap);
if (unicode !== -1) { if (unicode !== -1) {
code = unicode; code = unicode;
} }
@ -2492,7 +2490,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// equals `charcode`, using the glyph defined in the baseEncoding // equals `charcode`, using the glyph defined in the baseEncoding
// seems to yield a better `toUnicode` mapping (fixes issue 5070). // seems to yield a better `toUnicode` mapping (fixes issue 5070).
if (baseEncodingName && code === +charcode) { if (baseEncodingName && code === +charcode) {
let baseEncoding = getEncoding(baseEncodingName); const baseEncoding = getEncoding(baseEncodingName);
if (baseEncoding && (glyphName = baseEncoding[charcode])) { if (baseEncoding && (glyphName = baseEncoding[charcode])) {
toUnicode[charcode] = String.fromCharCode( toUnicode[charcode] = String.fromCharCode(
glyphsUnicodeMap[glyphName] glyphsUnicodeMap[glyphName]
@ -2562,12 +2560,12 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// b) Obtain the registry and ordering of the character collection used // b) Obtain the registry and ordering of the character collection used
// by the font’s CMap (for example, Adobe and Japan1) from its // by the font’s CMap (for example, Adobe and Japan1) from its
// CIDSystemInfo dictionary. // CIDSystemInfo dictionary.
let registry = properties.cidSystemInfo.registry; const registry = properties.cidSystemInfo.registry;
let ordering = properties.cidSystemInfo.ordering; const ordering = properties.cidSystemInfo.ordering;
// c) Construct a second CMap name by concatenating the registry and // c) Construct a second CMap name by concatenating the registry and
// ordering obtained in step (b) in the format registry–ordering–UCS2 // ordering obtained in step (b) in the format registry–ordering–UCS2
// (for example, Adobe–Japan1–UCS2). // (for example, Adobe–Japan1–UCS2).
let ucs2CMapName = Name.get(registry + "-" + ordering + "-UCS2"); const ucs2CMapName = Name.get(registry + "-" + ordering + "-UCS2");
// d) Obtain the CMap with the name constructed in step (c) (available // d) Obtain the CMap with the name constructed in step (c) (available
// from the ASN Web site; see the Bibliography). // from the ASN Web site; see the Bibliography).
return CMapFactory.create({ return CMapFactory.create({
@ -2575,15 +2573,15 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
fetchBuiltInCMap: this.fetchBuiltInCMap, fetchBuiltInCMap: this.fetchBuiltInCMap,
useCMap: null, useCMap: null,
}).then(function(ucs2CMap) { }).then(function(ucs2CMap) {
let cMap = properties.cMap; const cMap = properties.cMap;
let toUnicode = []; const toUnicode = [];
cMap.forEach(function(charcode, cid) { cMap.forEach(function(charcode, cid) {
if (cid > 0xffff) { if (cid > 0xffff) {
throw new FormatError("Max size of CID is 65,535"); throw new FormatError("Max size of CID is 65,535");
} }
// e) Map the CID obtained in step (a) according to the CMap // e) Map the CID obtained in step (a) according to the CMap
// obtained in step (d), producing a Unicode value. // obtained in step (d), producing a Unicode value.
let ucs2 = ucs2CMap.lookup(cid); const ucs2 = ucs2CMap.lookup(cid);
if (ucs2) { if (ucs2) {
toUnicode[charcode] = String.fromCharCode( toUnicode[charcode] = String.fromCharCode(
(ucs2.charCodeAt(0) << 8) + ucs2.charCodeAt(1) (ucs2.charCodeAt(0) << 8) + ucs2.charCodeAt(1)
@ -3204,7 +3202,7 @@ var TranslatedFont = (function TranslatedFontClosure() {
var charProcOperatorList = Object.create(null); var charProcOperatorList = Object.create(null);
for (var i = 0, n = charProcKeys.length; i < n; ++i) { for (var i = 0, n = charProcKeys.length; i < n; ++i) {
let key = charProcKeys[i]; const key = charProcKeys[i];
loadCharProcsPromise = loadCharProcsPromise.then(function() { loadCharProcsPromise = loadCharProcsPromise.then(function() {
var glyphStream = charProcs.get(key); var glyphStream = charProcs.get(key);
var operatorList = new OperatorList(); var operatorList = new OperatorList();

10
src/core/font_renderer.js
View File

@ -425,10 +425,10 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
n = stack.pop(); n = stack.pop();
subrCode = null; subrCode = null;
if (font.isCFFCIDFont) { if (font.isCFFCIDFont) {
let fdIndex = font.fdSelect.getFDIndex(glyphId); const fdIndex = font.fdSelect.getFDIndex(glyphId);
if (fdIndex >= 0 && fdIndex < font.fdArray.length) { if (fdIndex >= 0 && fdIndex < font.fdArray.length) {
let fontDict = font.fdArray[fdIndex], const fontDict = font.fdArray[fdIndex];
subrs; let subrs;
if (fontDict.privateDict && fontDict.privateDict.subrsIndex) { if (fontDict.privateDict && fontDict.privateDict.subrsIndex) {
subrs = fontDict.privateDict.subrsIndex.objects; subrs = fontDict.privateDict.subrsIndex.objects;
} }
@ -757,9 +757,9 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
if (this.isCFFCIDFont) { if (this.isCFFCIDFont) {
// Top DICT's FontMatrix can be ignored because CFFCompiler always // Top DICT's FontMatrix can be ignored because CFFCompiler always
// removes it and copies to FDArray DICTs. // removes it and copies to FDArray DICTs.
let fdIndex = this.fdSelect.getFDIndex(glyphId); const fdIndex = this.fdSelect.getFDIndex(glyphId);
if (fdIndex >= 0 && fdIndex < this.fdArray.length) { if (fdIndex >= 0 && fdIndex < this.fdArray.length) {
let fontDict = this.fdArray[fdIndex]; const fontDict = this.fdArray[fdIndex];
fontMatrix = fontDict.getByName("FontMatrix") || FONT_IDENTITY_MATRIX; fontMatrix = fontDict.getByName("FontMatrix") || FONT_IDENTITY_MATRIX;
} else { } else {
warn("Invalid fd index for glyph index."); warn("Invalid fd index for glyph index.");

42
src/core/fonts.js
View File

@ -294,11 +294,11 @@ var ToUnicodeMap = (function ToUnicodeMapClosure() {
charCodeOf(value) { charCodeOf(value) {
// `Array.prototype.indexOf` is *extremely* inefficient for arrays which // `Array.prototype.indexOf` is *extremely* inefficient for arrays which
// are both very sparse and very large (see issue8372.pdf). // are both very sparse and very large (see issue8372.pdf).
let map = this._map; const map = this._map;
if (map.length <= 0x10000) { if (map.length <= 0x10000) {
return map.indexOf(value); return map.indexOf(value);
} }
for (let charCode in map) { for (const charCode in map) {
if (map[charCode] === value) { if (map[charCode] === value) {
return charCode | 0; return charCode | 0;
} }
@ -697,7 +697,7 @@ var Font = (function FontClosure() {
} }
function isTrueTypeCollectionFile(file) { function isTrueTypeCollectionFile(file) {
let header = file.peekBytes(4); const header = file.peekBytes(4);
return bytesToString(header) === "ttcf"; return bytesToString(header) === "ttcf";
} }
@ -1311,7 +1311,7 @@ var Font = (function FontClosure() {
map[+charCode] = SupplementalGlyphMapForArialBlack[charCode]; map[+charCode] = SupplementalGlyphMapForArialBlack[charCode];
} }
} else if (/Calibri/i.test(name)) { } else if (/Calibri/i.test(name)) {
let SupplementalGlyphMapForCalibri = getSupplementalGlyphMapForCalibri(); const SupplementalGlyphMapForCalibri = getSupplementalGlyphMapForCalibri();
for (charCode in SupplementalGlyphMapForCalibri) { for (charCode in SupplementalGlyphMapForCalibri) {
map[+charCode] = SupplementalGlyphMapForCalibri[charCode]; map[+charCode] = SupplementalGlyphMapForCalibri[charCode];
} }
@ -1397,7 +1397,7 @@ var Font = (function FontClosure() {
]; ];
function readTables(file, numTables) { function readTables(file, numTables) {
let tables = Object.create(null); const tables = Object.create(null);
tables["OS/2"] = null; tables["OS/2"] = null;
tables["cmap"] = null; tables["cmap"] = null;
tables["head"] = null; tables["head"] = null;
@ -1408,7 +1408,7 @@ var Font = (function FontClosure() {
tables["post"] = null; tables["post"] = null;
for (let i = 0; i < numTables; i++) { for (let i = 0; i < numTables; i++) {
let table = readTableEntry(font); const table = readTableEntry(font);
if (!VALID_TABLES.includes(table.tag)) { if (!VALID_TABLES.includes(table.tag)) {
continue; // skipping table if it's not a required or optional table continue; // skipping table if it's not a required or optional table
} }
@ -1460,18 +1460,18 @@ var Font = (function FontClosure() {
} }
function readTrueTypeCollectionHeader(ttc) { function readTrueTypeCollectionHeader(ttc) {
let ttcTag = bytesToString(ttc.getBytes(4)); const ttcTag = bytesToString(ttc.getBytes(4));
assert(ttcTag === "ttcf", "Must be a TrueType Collection font."); assert(ttcTag === "ttcf", "Must be a TrueType Collection font.");
let majorVersion = ttc.getUint16(); const majorVersion = ttc.getUint16();
let minorVersion = ttc.getUint16(); const minorVersion = ttc.getUint16();
let numFonts = ttc.getInt32() >>> 0; const numFonts = ttc.getInt32() >>> 0;
let offsetTable = []; const offsetTable = [];
for (let i = 0; i < numFonts; i++) { for (let i = 0; i < numFonts; i++) {
offsetTable.push(ttc.getInt32() >>> 0); offsetTable.push(ttc.getInt32() >>> 0);
} }
let header = { const header = {
ttcTag, ttcTag,
majorVersion, majorVersion,
minorVersion, minorVersion,
@ -1493,23 +1493,23 @@ var Font = (function FontClosure() {
} }
function readTrueTypeCollectionData(ttc, fontName) { function readTrueTypeCollectionData(ttc, fontName) {
let { numFonts, offsetTable } = readTrueTypeCollectionHeader(ttc); const { numFonts, offsetTable } = readTrueTypeCollectionHeader(ttc);
for (let i = 0; i < numFonts; i++) { for (let i = 0; i < numFonts; i++) {
ttc.pos = (ttc.start || 0) + offsetTable[i]; ttc.pos = (ttc.start || 0) + offsetTable[i];
let potentialHeader = readOpenTypeHeader(ttc); const potentialHeader = readOpenTypeHeader(ttc);
let potentialTables = readTables(ttc, potentialHeader.numTables); const potentialTables = readTables(ttc, potentialHeader.numTables);
if (!potentialTables["name"]) { if (!potentialTables["name"]) {
throw new FormatError( throw new FormatError(
'TrueType Collection font must contain a "name" table.' 'TrueType Collection font must contain a "name" table.'
); );
} }
let nameTable = readNameTable(potentialTables["name"]); const nameTable = readNameTable(potentialTables["name"]);
for (let j = 0, jj = nameTable.length; j < jj; j++) { for (let j = 0, jj = nameTable.length; j < jj; j++) {
for (let k = 0, kk = nameTable[j].length; k < kk; k++) { for (let k = 0, kk = nameTable[j].length; k < kk; k++) {
let nameEntry = nameTable[j][k]; const nameEntry = nameTable[j][k];
if (nameEntry && nameEntry.replace(/\s/g, "") === fontName) { if (nameEntry && nameEntry.replace(/\s/g, "") === fontName) {
return { return {
header: potentialHeader, header: potentialHeader,
@ -2327,7 +2327,7 @@ var Font = (function FontClosure() {
} else { } else {
ttContext.functionsUsed[funcId] = true; ttContext.functionsUsed[funcId] = true;
if (funcId in ttContext.functionsStackDeltas) { if (funcId in ttContext.functionsStackDeltas) {
let newStackLength = const newStackLength =
stack.length + ttContext.functionsStackDeltas[funcId]; stack.length + ttContext.functionsStackDeltas[funcId];
if (newStackLength < 0) { if (newStackLength < 0) {
warn("TT: CALL invalid functions stack delta."); warn("TT: CALL invalid functions stack delta.");
@ -2525,7 +2525,7 @@ var Font = (function FontClosure() {
let header, tables; let header, tables;
if (isTrueTypeCollectionFile(font)) { if (isTrueTypeCollectionFile(font)) {
let ttcData = readTrueTypeCollectionData(font, this.name); const ttcData = readTrueTypeCollectionData(font, this.name);
header = ttcData.header; header = ttcData.header;
tables = ttcData.tables; tables = ttcData.tables;
} else { } else {
@ -3709,8 +3709,8 @@ var Type1Font = (function Type1FontClosure() {
var charsetArray = [".notdef"]; var charsetArray = [".notdef"];
var i, ii; var i, ii;
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
let glyphName = charstrings[i].glyphName; const glyphName = charstrings[i].glyphName;
let index = CFFStandardStrings.indexOf(glyphName); const index = CFFStandardStrings.indexOf(glyphName);
if (index === -1) { if (index === -1) {
strings.add(glyphName); strings.add(glyphName);
} }

6
src/core/function.js
View File

@ -24,7 +24,7 @@ import {
import { isDict, isStream } from "./primitives.js"; import { isDict, isStream } from "./primitives.js";
import { PostScriptLexer, PostScriptParser } from "./ps_parser.js"; import { PostScriptLexer, PostScriptParser } from "./ps_parser.js";
let IsEvalSupportedCached = { const IsEvalSupportedCached = {
get value() { get value() {
return shadow(this, "value", isEvalSupported()); return shadow(this, "value", isEvalSupported());
}, },
@ -150,7 +150,7 @@ var PDFFunction = (function PDFFunctionClosure() {
}, },
parse({ xref, isEvalSupported, fn }) { parse({ xref, isEvalSupported, fn }) {
let IR = this.getIR({ xref, isEvalSupported, fn }); const IR = this.getIR({ xref, isEvalSupported, fn });
return this.fromIR({ xref, isEvalSupported, IR }); return this.fromIR({ xref, isEvalSupported, IR });
}, },
@ -480,7 +480,7 @@ var PDFFunction = (function PDFFunctionClosure() {
var code = IR[3]; var code = IR[3];
if (isEvalSupported && IsEvalSupportedCached.value) { if (isEvalSupported && IsEvalSupportedCached.value) {
let compiled = new PostScriptCompiler().compile(code, domain, range); const compiled = new PostScriptCompiler().compile(code, domain, range);
if (compiled) { if (compiled) {
// Compiled function consists of simple expressions such as addition, // Compiled function consists of simple expressions such as addition,
// subtraction, Math.max, and also contains 'var' and 'return' // subtraction, Math.max, and also contains 'var' and 'return'

2
src/core/image.js
View File

@ -195,7 +195,7 @@ var PDFImage = (function PDFImageClosure() {
); );
} }
} }
let resources = isInline ? res : null; const resources = isInline ? res : null;
this.colorSpace = ColorSpace.parse( this.colorSpace = ColorSpace.parse(
colorSpace, colorSpace,
xref, xref,

191
src/core/jbig2.js
View File

@ -345,7 +345,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
decodingContext decodingContext
) { ) {
if (mmr) { if (mmr) {
let input = new Reader( const input = new Reader(
decodingContext.data, decodingContext.data,
decodingContext.start, decodingContext.start,
decodingContext.end decodingContext.end
@ -625,7 +625,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
currentHeight += deltaHeight; currentHeight += deltaHeight;
let currentWidth = 0, let currentWidth = 0,
totalWidth = 0; totalWidth = 0;
let firstSymbol = huffman ? symbolWidths.length : 0; const firstSymbol = huffman ? symbolWidths.length : 0;
while (true) { while (true) {
var deltaWidth = huffman var deltaWidth = huffman
? huffmanTables.tableDeltaWidth.decode(huffmanInput) ? huffmanTables.tableDeltaWidth.decode(huffmanInput)
@ -703,7 +703,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
if (huffman && !refinement) { if (huffman && !refinement) {
// 6.5.9 Height class collective bitmap // 6.5.9 Height class collective bitmap
let bitmapSize = huffmanTables.tableBitmapSize.decode(huffmanInput); const bitmapSize = huffmanTables.tableBitmapSize.decode(huffmanInput);
huffmanInput.byteAlign(); huffmanInput.byteAlign();
let collectiveBitmap; let collectiveBitmap;
if (bitmapSize === 0) { if (bitmapSize === 0) {
@ -715,8 +715,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
); );
} else { } else {
// MMR collective bitmap // MMR collective bitmap
let originalEnd = huffmanInput.end; const originalEnd = huffmanInput.end;
let bitmapEnd = huffmanInput.position + bitmapSize; const bitmapEnd = huffmanInput.position + bitmapSize;
huffmanInput.end = bitmapEnd; huffmanInput.end = bitmapEnd;
collectiveBitmap = decodeMMRBitmap( collectiveBitmap = decodeMMRBitmap(
huffmanInput, huffmanInput,
@ -727,7 +727,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
huffmanInput.end = originalEnd; huffmanInput.end = originalEnd;
huffmanInput.position = bitmapEnd; huffmanInput.position = bitmapEnd;
} }
let numberOfSymbolsDecoded = symbolWidths.length; const numberOfSymbolsDecoded = symbolWidths.length;
if (firstSymbol === numberOfSymbolsDecoded - 1) { if (firstSymbol === numberOfSymbolsDecoded - 1) {
// collectiveBitmap is a single symbol. // collectiveBitmap is a single symbol.
newSymbols.push(collectiveBitmap); newSymbols.push(collectiveBitmap);
@ -954,7 +954,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
template, template,
decodingContext decodingContext
) { ) {
let at = []; const at = [];
if (!mmr) { if (!mmr) {
at.push({ at.push({
x: -patternWidth, x: -patternWidth,
@ -975,8 +975,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
}); });
} }
} }
let collectiveWidth = (maxPatternIndex + 1) * patternWidth; const collectiveWidth = (maxPatternIndex + 1) * patternWidth;
let collectiveBitmap = decodeBitmap( const collectiveBitmap = decodeBitmap(
mmr, mmr,
collectiveWidth, collectiveWidth,
patternHeight, patternHeight,
@ -987,21 +987,15 @@ var Jbig2Image = (function Jbig2ImageClosure() {
decodingContext decodingContext
); );
// Divide collective bitmap into patterns. // Divide collective bitmap into patterns.
let patterns = [], const patterns = [];
i = 0, for (let i = 0; i <= maxPatternIndex; i++) {
patternBitmap, const patternBitmap = [];
xMin, const xMin = patternWidth * i;
xMax, const xMax = xMin + patternWidth;
y; for (let y = 0; y < patternHeight; y++) {
while (i <= maxPatternIndex) {
patternBitmap = [];
xMin = patternWidth * i;
xMax = xMin + patternWidth;
for (y = 0; y < patternHeight; y++) {
patternBitmap.push(collectiveBitmap[y].subarray(xMin, xMax)); patternBitmap.push(collectiveBitmap[y].subarray(xMin, xMax));
} }
patterns.push(patternBitmap); patterns.push(patternBitmap);
i++;
} }
return patterns; return patterns;
} }
@ -1023,7 +1017,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
gridVectorY, gridVectorY,
decodingContext decodingContext
) { ) {
let skip = null; const skip = null;
if (enableSkip) { if (enableSkip) {
throw new Jbig2Error("skip is not supported"); throw new Jbig2Error("skip is not supported");
} }
@ -1036,7 +1030,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
// Prepare bitmap. // Prepare bitmap.
let regionBitmap = []; const regionBitmap = [];
let i, j, row; let i, j, row;
for (i = 0; i < regionHeight; i++) { for (i = 0; i < regionHeight; i++) {
row = new Uint8Array(regionWidth); row = new Uint8Array(regionWidth);
@ -1048,12 +1042,12 @@ var Jbig2Image = (function Jbig2ImageClosure() {
regionBitmap.push(row); regionBitmap.push(row);
} }
let numberOfPatterns = patterns.length; const numberOfPatterns = patterns.length;
let pattern0 = patterns[0]; const pattern0 = patterns[0];
let patternWidth = pattern0[0].length, const patternWidth = pattern0[0].length,
patternHeight = pattern0.length; patternHeight = pattern0.length;
let bitsPerValue = log2(numberOfPatterns); const bitsPerValue = log2(numberOfPatterns);
let at = []; const at = [];
if (!mmr) { if (!mmr) {
at.push({ at.push({
x: template <= 1 ? 3 : 2, x: template <= 1 ? 3 : 2,
@ -1075,9 +1069,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
} }
// Annex C. Gray-scale Image Decoding Procedure. // Annex C. Gray-scale Image Decoding Procedure.
let grayScaleBitPlanes = [], const grayScaleBitPlanes = [];
mmrInput, let mmrInput, bitmap;
bitmap;
if (mmr) { if (mmr) {
// MMR bit planes are in one continuous stream. Only EOFB codes indicate // MMR bit planes are in one continuous stream. Only EOFB codes indicate
// the end of each bitmap, so EOFBs must be decoded. // the end of each bitmap, so EOFBs must be decoded.
@ -1403,8 +1396,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
break; break;
case 16: // PatternDictionary case 16: // PatternDictionary
// 7.4.4. Pattern dictionary segment syntax // 7.4.4. Pattern dictionary segment syntax
let patternDictionary = {}; const patternDictionary = {};
let patternDictionaryFlags = data[position++]; const patternDictionaryFlags = data[position++];
patternDictionary.mmr = !!(patternDictionaryFlags & 1); patternDictionary.mmr = !!(patternDictionaryFlags & 1);
patternDictionary.template = (patternDictionaryFlags >> 1) & 3; patternDictionary.template = (patternDictionaryFlags >> 1) & 3;
patternDictionary.patternWidth = data[position++]; patternDictionary.patternWidth = data[position++];
@ -1416,10 +1409,10 @@ var Jbig2Image = (function Jbig2ImageClosure() {
case 22: // ImmediateHalftoneRegion case 22: // ImmediateHalftoneRegion
case 23: // ImmediateLosslessHalftoneRegion case 23: // ImmediateLosslessHalftoneRegion
// 7.4.5 Halftone region segment syntax // 7.4.5 Halftone region segment syntax
let halftoneRegion = {}; const halftoneRegion = {};
halftoneRegion.info = readRegionSegmentInformation(data, position); halftoneRegion.info = readRegionSegmentInformation(data, position);
position += RegionSegmentInformationFieldLength; position += RegionSegmentInformationFieldLength;
let halftoneRegionFlags = data[position++]; const halftoneRegionFlags = data[position++];
halftoneRegion.mmr = !!(halftoneRegionFlags & 1); halftoneRegion.mmr = !!(halftoneRegionFlags & 1);
halftoneRegion.template = (halftoneRegionFlags >> 1) & 3; halftoneRegion.template = (halftoneRegionFlags >> 1) & 3;
halftoneRegion.enableSkip = !!(halftoneRegionFlags & 8); halftoneRegion.enableSkip = !!(halftoneRegionFlags & 8);
@ -1523,8 +1516,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
function parseJbig2(data) { function parseJbig2(data) {
let position = 0, const end = data.length;
end = data.length; let position = 0;
if ( if (
data[position] !== 0x97 || data[position] !== 0x97 ||
@ -1539,7 +1532,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
throw new Jbig2Error("parseJbig2 - invalid header."); throw new Jbig2Error("parseJbig2 - invalid header.");
} }
let header = Object.create(null); const header = Object.create(null);
position += 8; position += 8;
const flags = data[position++]; const flags = data[position++];
header.randomAccess = !(flags & 1); header.randomAccess = !(flags & 1);
@ -1548,13 +1541,13 @@ var Jbig2Image = (function Jbig2ImageClosure() {
position += 4; position += 4;
} }
let segments = readSegments(header, data, position, end); const segments = readSegments(header, data, position, end);
let visitor = new SimpleSegmentVisitor(); const visitor = new SimpleSegmentVisitor();
processSegments(segments, visitor); processSegments(segments, visitor);
const { width, height } = visitor.currentPageInfo; const { width, height } = visitor.currentPageInfo;
const bitPacked = visitor.buffer; const bitPacked = visitor.buffer;
let imgData = new Uint8ClampedArray(width * height); const imgData = new Uint8ClampedArray(width * height);
let q = 0, let q = 0,
k = 0; k = 0;
for (let i = 0; i < height; i++) { for (let i = 0; i < height; i++) {
@ -1691,7 +1684,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
var inputSymbols = []; var inputSymbols = [];
for (var i = 0, ii = referredSegments.length; i < ii; i++) { for (var i = 0, ii = referredSegments.length; i < ii; i++) {
let referredSymbols = symbols[referredSegments[i]]; const referredSymbols = symbols[referredSegments[i]];
// referredSymbols is undefined when we have a reference to a Tables // referredSymbols is undefined when we have a reference to a Tables
// segment instead of a SymbolDictionary. // segment instead of a SymbolDictionary.
if (referredSymbols) { if (referredSymbols) {
@ -1729,7 +1722,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
var symbols = this.symbols; var symbols = this.symbols;
var inputSymbols = []; var inputSymbols = [];
for (var i = 0, ii = referredSegments.length; i < ii; i++) { for (var i = 0, ii = referredSegments.length; i < ii; i++) {
let referredSymbols = symbols[referredSegments[i]]; const referredSymbols = symbols[referredSegments[i]];
// referredSymbols is undefined when we have a reference to a Tables // referredSymbols is undefined when we have a reference to a Tables
// segment instead of a SymbolDictionary. // segment instead of a SymbolDictionary.
if (referredSymbols) { if (referredSymbols) {
@ -1780,7 +1773,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
if (!patterns) { if (!patterns) {
this.patterns = patterns = {}; this.patterns = patterns = {};
} }
let decodingContext = new DecodingContext(data, start, end); const decodingContext = new DecodingContext(data, start, end);
patterns[currentSegment] = decodePatternDictionary( patterns[currentSegment] = decodePatternDictionary(
dictionary.mmr, dictionary.mmr,
dictionary.patternWidth, dictionary.patternWidth,
@ -1792,10 +1785,10 @@ var Jbig2Image = (function Jbig2ImageClosure() {
}, },
onImmediateHalftoneRegion(region, referredSegments, data, start, end) { onImmediateHalftoneRegion(region, referredSegments, data, start, end) {
// HalftoneRegion refers to exactly one PatternDictionary. // HalftoneRegion refers to exactly one PatternDictionary.
let patterns = this.patterns[referredSegments[0]]; const patterns = this.patterns[referredSegments[0]];
let regionInfo = region.info; const regionInfo = region.info;
let decodingContext = new DecodingContext(data, start, end); const decodingContext = new DecodingContext(data, start, end);
let bitmap = decodeHalftoneRegion( const bitmap = decodeHalftoneRegion(
region.mmr, region.mmr,
patterns, patterns,
region.template, region.template,
@ -1864,7 +1857,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
HuffmanTreeNode.prototype = { HuffmanTreeNode.prototype = {
buildTree(line, shift) { buildTree(line, shift) {
let bit = (line.prefixCode >> shift) & 1; const bit = (line.prefixCode >> shift) & 1;
if (shift <= 0) { if (shift <= 0) {
// Create a leaf node. // Create a leaf node.
this.children[bit] = new HuffmanTreeNode(line); this.children[bit] = new HuffmanTreeNode(line);
@ -1882,10 +1875,10 @@ var Jbig2Image = (function Jbig2ImageClosure() {
if (this.isOOB) { if (this.isOOB) {
return null; return null;
} }
let htOffset = reader.readBits(this.rangeLength); const htOffset = reader.readBits(this.rangeLength);
return this.rangeLow + (this.isLowerRange ? -htOffset : htOffset); return this.rangeLow + (this.isLowerRange ? -htOffset : htOffset);
} }
let node = this.children[reader.readBit()]; const node = this.children[reader.readBit()];
if (!node) { if (!node) {
throw new Jbig2Error("invalid Huffman data"); throw new Jbig2Error("invalid Huffman data");
} }
@ -1899,11 +1892,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
// Create Huffman tree. // Create Huffman tree.
this.rootNode = new HuffmanTreeNode(null); this.rootNode = new HuffmanTreeNode(null);
let i, for (let i = 0, ii = lines.length; i < ii; i++) {
ii = lines.length, const line = lines[i];
line;
for (i = 0; i < ii; i++) {
line = lines[i];
if (line.prefixLength > 0) { if (line.prefixLength > 0) {
this.rootNode.buildTree(line, line.prefixLength - 1); this.rootNode.buildTree(line, line.prefixLength - 1);
} }
@ -1916,15 +1906,14 @@ var Jbig2Image = (function Jbig2ImageClosure() {
}, },
assignPrefixCodes(lines) { assignPrefixCodes(lines) {
// Annex B.3 Assigning the prefix codes. // Annex B.3 Assigning the prefix codes.
let linesLength = lines.length, const linesLength = lines.length;
prefixLengthMax = 0, let prefixLengthMax = 0;
i; for (let i = 0; i < linesLength; i++) {
for (i = 0; i < linesLength; i++) {
prefixLengthMax = Math.max(prefixLengthMax, lines[i].prefixLength); prefixLengthMax = Math.max(prefixLengthMax, lines[i].prefixLength);
} }
let histogram = new Uint32Array(prefixLengthMax + 1); const histogram = new Uint32Array(prefixLengthMax + 1);
for (i = 0; i < linesLength; i++) { for (let i = 0; i < linesLength; i++) {
histogram[lines[i].prefixLength]++; histogram[lines[i].prefixLength]++;
} }
let currentLength = 1, let currentLength = 1,
@ -1954,14 +1943,14 @@ var Jbig2Image = (function Jbig2ImageClosure() {
function decodeTablesSegment(data, start, end) { function decodeTablesSegment(data, start, end) {
// Decodes a Tables segment, i.e., a custom Huffman table. // Decodes a Tables segment, i.e., a custom Huffman table.
// Annex B.2 Code table structure. // Annex B.2 Code table structure.
let flags = data[start]; const flags = data[start];
let lowestValue = readUint32(data, start + 1) & 0xffffffff; const lowestValue = readUint32(data, start + 1) & 0xffffffff;
let highestValue = readUint32(data, start + 5) & 0xffffffff; const highestValue = readUint32(data, start + 5) & 0xffffffff;
let reader = new Reader(data, start + 9, end); const reader = new Reader(data, start + 9, end);
let prefixSizeBits = ((flags >> 1) & 7) + 1; const prefixSizeBits = ((flags >> 1) & 7) + 1;
let rangeSizeBits = ((flags >> 4) & 7) + 1; const rangeSizeBits = ((flags >> 4) & 7) + 1;
let lines = []; const lines = [];
let prefixLength, let prefixLength,
rangeLength, rangeLength,
currentRangeLow = lowestValue; currentRangeLow = lowestValue;
@ -1995,7 +1984,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
return new HuffmanTable(lines, false); return new HuffmanTable(lines, false);
} }
let standardTablesCache = {}; const standardTablesCache = {};
function getStandardTable(number) { function getStandardTable(number) {
// Annex B.5 Standard Huffman tables. // Annex B.5 Standard Huffman tables.
@ -2253,9 +2242,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
throw new Jbig2Error(`standard table B.${number} does not exist`); throw new Jbig2Error(`standard table B.${number} does not exist`);
} }
let length = lines.length, for (let i = 0, ii = lines.length; i < ii; i++) {
i;
for (i = 0; i < length; i++) {
lines[i] = new HuffmanLine(lines[i]); lines[i] = new HuffmanLine(lines[i]);
} }
table = new HuffmanTable(lines, true); table = new HuffmanTable(lines, true);
@ -2281,7 +2268,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
this.currentByte = this.data[this.position++]; this.currentByte = this.data[this.position++];
this.shift = 7; this.shift = 7;
} }
let bit = (this.currentByte >> this.shift) & 1; const bit = (this.currentByte >> this.shift) & 1;
this.shift--; this.shift--;
return bit; return bit;
}, },
@ -2310,12 +2297,9 @@ var Jbig2Image = (function Jbig2ImageClosure() {
function getCustomHuffmanTable(index, referredTo, customTables) { function getCustomHuffmanTable(index, referredTo, customTables) {
// Returns a Tables segment that has been earlier decoded. // Returns a Tables segment that has been earlier decoded.
// See 7.4.2.1.6 (symbol dictionary) or 7.4.3.1.6 (text region). // See 7.4.2.1.6 (symbol dictionary) or 7.4.3.1.6 (text region).
let currentIndex = 0, let currentIndex = 0;
i, for (let i = 0, ii = referredTo.length; i < ii; i++) {
ii = referredTo.length, const table = customTables[referredTo[i]];
table;
for (i = 0; i < ii; i++) {
table = customTables[referredTo[i]];
if (table) { if (table) {
if (index === currentIndex) { if (index === currentIndex) {
return table; return table;
@ -2336,21 +2320,19 @@ var Jbig2Image = (function Jbig2ImageClosure() {
// 7.4.3.1.7 Symbol ID Huffman table decoding // 7.4.3.1.7 Symbol ID Huffman table decoding
// Read code lengths for RUNCODEs 0...34. // Read code lengths for RUNCODEs 0...34.
let codes = [], const codes = [];
i, for (let i = 0; i <= 34; i++) {
codeLength; const codeLength = reader.readBits(4);
for (i = 0; i <= 34; i++) {
codeLength = reader.readBits(4);
codes.push(new HuffmanLine([i, codeLength, 0, 0])); codes.push(new HuffmanLine([i, codeLength, 0, 0]));
} }
// Assign Huffman codes for RUNCODEs. // Assign Huffman codes for RUNCODEs.
let runCodesTable = new HuffmanTable(codes, false); const runCodesTable = new HuffmanTable(codes, false);
// Read a Huffman code using the assignment above. // Read a Huffman code using the assignment above.
// Interpret the RUNCODE codes and the additional bits (if any). // Interpret the RUNCODE codes and the additional bits (if any).
codes.length = 0; codes.length = 0;
for (i = 0; i < numberOfSymbols; ) { for (let i = 0; i < numberOfSymbols; ) {
codeLength = runCodesTable.decode(reader); const codeLength = runCodesTable.decode(reader);
if (codeLength >= 32) { if (codeLength >= 32) {
let repeatedLength, numberOfRepeats, j; let repeatedLength, numberOfRepeats, j;
switch (codeLength) { switch (codeLength) {
@ -2382,7 +2364,7 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
} }
reader.byteAlign(); reader.byteAlign();
let symbolIDTable = new HuffmanTable(codes, false); const symbolIDTable = new HuffmanTable(codes, false);
// 7.4.3.1.6 Text region segment Huffman table selection // 7.4.3.1.6 Text region segment Huffman table selection
@ -2532,14 +2514,11 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
function readUncompressedBitmap(reader, width, height) { function readUncompressedBitmap(reader, width, height) {
let bitmap = [], const bitmap = [];
x, for (let y = 0; y < height; y++) {
y, const row = new Uint8Array(width);
row;
for (y = 0; y < height; y++) {
row = new Uint8Array(width);
bitmap.push(row); bitmap.push(row);
for (x = 0; x < width; x++) { for (let x = 0; x < width; x++) {
row[x] = reader.readBit(); row[x] = reader.readBit();
} }
reader.byteAlign(); reader.byteAlign();
@ -2550,27 +2529,23 @@ var Jbig2Image = (function Jbig2ImageClosure() {
function decodeMMRBitmap(input, width, height, endOfBlock) { function decodeMMRBitmap(input, width, height, endOfBlock) {
// MMR is the same compression algorithm as the PDF filter // MMR is the same compression algorithm as the PDF filter
// CCITTFaxDecode with /K -1. // CCITTFaxDecode with /K -1.
let params = { const params = {
K: -1, K: -1,
Columns: width, Columns: width,
Rows: height, Rows: height,
BlackIs1: true, BlackIs1: true,
EndOfBlock: endOfBlock, EndOfBlock: endOfBlock,
}; };
let decoder = new CCITTFaxDecoder(input, params); const decoder = new CCITTFaxDecoder(input, params);
let bitmap = [], const bitmap = [];
x, let currentByte,
y,
row,
currentByte,
shift,
eof = false; eof = false;
for (y = 0; y < height; y++) { for (let y = 0; y < height; y++) {
row = new Uint8Array(width); const row = new Uint8Array(width);
bitmap.push(row); bitmap.push(row);
shift = -1; let shift = -1;
for (x = 0; x < width; x++) { for (let x = 0; x < width; x++) {
if (shift < 0) { if (shift < 0) {
currentByte = decoder.readNextChar(); currentByte = decoder.readNextChar();
if (currentByte === -1) { if (currentByte === -1) {

14
src/core/jbig2_stream.js
View File

@ -22,7 +22,7 @@ import { shadow } from "../shared/util.js";
* For JBIG2's we use a library to decode these images and * For JBIG2's we use a library to decode these images and
* the stream behaves like all the other DecodeStreams. * the stream behaves like all the other DecodeStreams.
*/ */
let Jbig2Stream = (function Jbig2StreamClosure() { const Jbig2Stream = (function Jbig2StreamClosure() {
function Jbig2Stream(stream, maybeLength, dict, params) { function Jbig2Stream(stream, maybeLength, dict, params) {
this.stream = stream; this.stream = stream;
this.maybeLength = maybeLength; this.maybeLength = maybeLength;
@ -51,19 +51,19 @@ let Jbig2Stream = (function Jbig2StreamClosure() {
if (this.eof) { if (this.eof) {
return; return;
} }
let jbig2Image = new Jbig2Image(); const jbig2Image = new Jbig2Image();
let chunks = []; const chunks = [];
if (isDict(this.params)) { if (isDict(this.params)) {
let globalsStream = this.params.get("JBIG2Globals"); const globalsStream = this.params.get("JBIG2Globals");
if (isStream(globalsStream)) { if (isStream(globalsStream)) {
let globals = globalsStream.getBytes(); const globals = globalsStream.getBytes();
chunks.push({ data: globals, start: 0, end: globals.length }); chunks.push({ data: globals, start: 0, end: globals.length });
} }
} }
chunks.push({ data: this.bytes, start: 0, end: this.bytes.length }); chunks.push({ data: this.bytes, start: 0, end: this.bytes.length });
let data = jbig2Image.parseChunks(chunks); const data = jbig2Image.parseChunks(chunks);
let dataLength = data.length; const dataLength = data.length;
// JBIG2 had black as 1 and white as 0, inverting the colors // JBIG2 had black as 1 and white as 0, inverting the colors
for (let i = 0; i < dataLength; i++) { for (let i = 0; i < dataLength; i++) {

18
src/core/jpeg_stream.js
View File

@ -25,7 +25,7 @@ import { JpegImage } from "./jpg.js";
* a library to decode these images and the stream behaves like all the other * a library to decode these images and the stream behaves like all the other
* DecodeStreams. * DecodeStreams.
*/ */
let JpegStream = (function JpegStreamClosure() { const JpegStream = (function JpegStreamClosure() {
function JpegStream(stream, maybeLength, dict, params) { function JpegStream(stream, maybeLength, dict, params) {
// Some images may contain 'junk' before the SOI (start-of-image) marker. // Some images may contain 'junk' before the SOI (start-of-image) marker.
// Note: this seems to mainly affect inline images. // Note: this seems to mainly affect inline images.
@ -64,19 +64,19 @@ let JpegStream = (function JpegStreamClosure() {
if (this.eof) { if (this.eof) {
return; return;
} }
let jpegOptions = { const jpegOptions = {
decodeTransform: undefined, decodeTransform: undefined,
colorTransform: undefined, colorTransform: undefined,
}; };
// Checking if values need to be transformed before conversion. // Checking if values need to be transformed before conversion.
let decodeArr = this.dict.getArray("Decode", "D"); const decodeArr = this.dict.getArray("Decode", "D");
if (this.forceRGB && Array.isArray(decodeArr)) { if (this.forceRGB && Array.isArray(decodeArr)) {
let bitsPerComponent = this.dict.get("BitsPerComponent") || 8; const bitsPerComponent = this.dict.get("BitsPerComponent") || 8;
let decodeArrLength = decodeArr.length; const decodeArrLength = decodeArr.length;
let transform = new Int32Array(decodeArrLength); const transform = new Int32Array(decodeArrLength);
let transformNeeded = false; let transformNeeded = false;
let maxValue = (1 << bitsPerComponent) - 1; const maxValue = (1 << bitsPerComponent) - 1;
for (let i = 0; i < decodeArrLength; i += 2) { for (let i = 0; i < decodeArrLength; i += 2) {
transform[i] = ((decodeArr[i + 1] - decodeArr[i]) * 256) | 0; transform[i] = ((decodeArr[i + 1] - decodeArr[i]) * 256) | 0;
transform[i + 1] = (decodeArr[i] * maxValue) | 0; transform[i + 1] = (decodeArr[i] * maxValue) | 0;
@ -90,7 +90,7 @@ let JpegStream = (function JpegStreamClosure() {
} }
// Fetching the 'ColorTransform' entry, if it exists. // Fetching the 'ColorTransform' entry, if it exists.
if (isDict(this.params)) { if (isDict(this.params)) {
let colorTransform = this.params.get("ColorTransform"); const colorTransform = this.params.get("ColorTransform");
if (Number.isInteger(colorTransform)) { if (Number.isInteger(colorTransform)) {
jpegOptions.colorTransform = colorTransform; jpegOptions.colorTransform = colorTransform;
} }
@ -98,7 +98,7 @@ let JpegStream = (function JpegStreamClosure() {
const jpegImage = new JpegImage(jpegOptions); const jpegImage = new JpegImage(jpegOptions);
jpegImage.parse(this.bytes); jpegImage.parse(this.bytes);
let data = jpegImage.getData({ const data = jpegImage.getData({
width: this.drawWidth, width: this.drawWidth,
height: this.drawHeight, height: this.drawHeight,
forceRGB: this.forceRGB, forceRGB: this.forceRGB,

6
src/core/jpg.js
View File

@ -274,8 +274,8 @@ var JpegImage = (function JpegImageClosure() {
var s; var s;
var rs; var rs;
while (k <= e) { while (k <= e) {
let offsetZ = offset + dctZigZag[k]; const offsetZ = offset + dctZigZag[k];
let sign = component.blockData[offsetZ] < 0 ? -1 : 1; const sign = component.blockData[offsetZ] < 0 ? -1 : 1;
switch (successiveACState) { switch (successiveACState) {
case 0: // initial state case 0: // initial state
rs = decodeHuffman(component.huffmanTableAC); rs = decodeHuffman(component.huffmanTableAC);
@ -1035,7 +1035,7 @@ var JpegImage = (function JpegImageClosure() {
offset -= 3; offset -= 3;
break; break;
} }
let nextFileMarker = findNextFileMarker(data, offset - 2); const nextFileMarker = findNextFileMarker(data, offset - 2);
if (nextFileMarker && nextFileMarker.invalid) { if (nextFileMarker && nextFileMarker.invalid) {
warn( warn(
"JpegImage.parse - unexpected data, current marker is: " + "JpegImage.parse - unexpected data, current marker is: " +

2
src/core/jpx.js
View File

@ -1541,7 +1541,7 @@ var JpxImage = (function JpxImageClosure() {
y0 = y0items[j] + offset; y0 = y0items[j] + offset;
y1 = y1items[j]; y1 = y1items[j];
y2 = y2items[j]; y2 = y2items[j];
let g = y0 - ((y2 + y1) >> 2); const g = y0 - ((y2 + y1) >> 2);
out[pos++] = (g + y2) >> shift; out[pos++] = (g + y2) >> shift;
out[pos++] = g >> shift; out[pos++] = g >> shift;

32
src/core/jpx_stream.js
View File

@ -21,7 +21,7 @@ import { shadow } from "../shared/util.js";
* For JPEG 2000's we use a library to decode these images and * For JPEG 2000's we use a library to decode these images and
* the stream behaves like all the other DecodeStreams. * the stream behaves like all the other DecodeStreams.
*/ */
let JpxStream = (function JpxStreamClosure() { const JpxStream = (function JpxStreamClosure() {
function JpxStream(stream, maybeLength, dict, params) { function JpxStream(stream, maybeLength, dict, params) {
this.stream = stream; this.stream = stream;
this.maybeLength = maybeLength; this.maybeLength = maybeLength;
@ -50,33 +50,33 @@ let JpxStream = (function JpxStreamClosure() {
if (this.eof) { if (this.eof) {
return; return;
} }
let jpxImage = new JpxImage(); const jpxImage = new JpxImage();
jpxImage.parse(this.bytes); jpxImage.parse(this.bytes);
let width = jpxImage.width; const width = jpxImage.width;
let height = jpxImage.height; const height = jpxImage.height;
let componentsCount = jpxImage.componentsCount; const componentsCount = jpxImage.componentsCount;
let tileCount = jpxImage.tiles.length; const tileCount = jpxImage.tiles.length;
if (tileCount === 1) { if (tileCount === 1) {
this.buffer = jpxImage.tiles[0].items; this.buffer = jpxImage.tiles[0].items;
} else { } else {
let data = new Uint8ClampedArray(width * height * componentsCount); const data = new Uint8ClampedArray(width * height * componentsCount);
for (let k = 0; k < tileCount; k++) { for (let k = 0; k < tileCount; k++) {
let tileComponents = jpxImage.tiles[k]; const tileComponents = jpxImage.tiles[k];
let tileWidth = tileComponents.width; const tileWidth = tileComponents.width;
let tileHeight = tileComponents.height; const tileHeight = tileComponents.height;
let tileLeft = tileComponents.left; const tileLeft = tileComponents.left;
let tileTop = tileComponents.top; const tileTop = tileComponents.top;
let src = tileComponents.items; const src = tileComponents.items;
let srcPosition = 0; let srcPosition = 0;
let dataPosition = (width * tileTop + tileLeft) * componentsCount; let dataPosition = (width * tileTop + tileLeft) * componentsCount;
let imgRowSize = width * componentsCount; const imgRowSize = width * componentsCount;
let tileRowSize = tileWidth * componentsCount; const tileRowSize = tileWidth * componentsCount;
for (let j = 0; j < tileHeight; j++) { for (let j = 0; j < tileHeight; j++) {
let rowBytes = src.subarray(srcPosition, srcPosition + tileRowSize); const rowBytes = src.subarray(srcPosition, srcPosition + tileRowSize);
data.set(rowBytes, dataPosition); data.set(rowBytes, dataPosition);
srcPosition += tileRowSize; srcPosition += tileRowSize;
dataPosition += imgRowSize; dataPosition += imgRowSize;

42
src/core/obj.js
View File

@ -267,7 +267,7 @@ class Catalog {
dests = Object.create(null); dests = Object.create(null);
if (obj instanceof NameTree) { if (obj instanceof NameTree) {
const names = obj.getAll(); const names = obj.getAll();
for (let name in names) { for (const name in names) {
dests[name] = fetchDestination(names[name]); dests[name] = fetchDestination(names[name]);
} }
} else if (obj instanceof Dict) { } else if (obj instanceof Dict) {
@ -1527,11 +1527,11 @@ var XRef = (function XRefClosure() {
// we won't skip over a new 'obj' operator in corrupt files where // we won't skip over a new 'obj' operator in corrupt files where
// 'endobj' operators are missing (fixes issue9105_reduced.pdf). // 'endobj' operators are missing (fixes issue9105_reduced.pdf).
while (startPos < buffer.length) { while (startPos < buffer.length) {
let endPos = startPos + skipUntil(buffer, startPos, objBytes) + 4; const endPos = startPos + skipUntil(buffer, startPos, objBytes) + 4;
contentLength = endPos - position; contentLength = endPos - position;
let checkPos = Math.max(endPos - CHECK_CONTENT_LENGTH, startPos); const checkPos = Math.max(endPos - CHECK_CONTENT_LENGTH, startPos);
let tokenStr = bytesToString(buffer.subarray(checkPos, endPos)); const tokenStr = bytesToString(buffer.subarray(checkPos, endPos));
// Check if the current object ends with an 'endobj' operator. // Check if the current object ends with an 'endobj' operator.
if (endobjRegExp.test(tokenStr)) { if (endobjRegExp.test(tokenStr)) {
@ -1539,7 +1539,7 @@ var XRef = (function XRefClosure() {
} else { } else {
// Check if an "obj" occurrence is actually a new object, // Check if an "obj" occurrence is actually a new object,
// i.e. the current object is missing the 'endobj' operator. // i.e. the current object is missing the 'endobj' operator.
let objToken = nestedObjRegExp.exec(tokenStr); const objToken = nestedObjRegExp.exec(tokenStr);
if (objToken && objToken[1]) { if (objToken && objToken[1]) {
warn( warn(
@ -1552,7 +1552,7 @@ var XRef = (function XRefClosure() {
} }
startPos = endPos; startPos = endPos;
} }
let content = buffer.subarray(position, position + contentLength); const content = buffer.subarray(position, position + contentLength);
// checking XRef stream suspect // checking XRef stream suspect
// (it shall have '/XRef' and next char is not a letter) // (it shall have '/XRef' and next char is not a letter)
@ -1597,7 +1597,7 @@ var XRef = (function XRefClosure() {
continue; continue;
} }
// read the trailer dictionary // read the trailer dictionary
let dict = parser.getObj(); const dict = parser.getObj();
if (!isDict(dict)) { if (!isDict(dict)) {
continue; continue;
} }
@ -1634,7 +1634,7 @@ var XRef = (function XRefClosure() {
// Keep track of already parsed XRef tables, to prevent an infinite loop // Keep track of already parsed XRef tables, to prevent an infinite loop
// when parsing corrupt PDF files where e.g. the /Prev entries create a // when parsing corrupt PDF files where e.g. the /Prev entries create a
// circular dependency between tables (fixes bug1393476.pdf). // circular dependency between tables (fixes bug1393476.pdf).
let startXRefParsedCache = Object.create(null); const startXRefParsedCache = Object.create(null);
try { try {
while (this.startXRefQueue.length) { while (this.startXRefQueue.length) {
@ -2178,7 +2178,7 @@ var FileSpec = (function FileSpecClosure() {
* that have references to the catalog or other pages since that will cause the * that have references to the catalog or other pages since that will cause the
* entire PDF document object graph to be traversed. * entire PDF document object graph to be traversed.
*/ */
let ObjectLoader = (function() { const ObjectLoader = (function() {
function mayHaveChildren(value) { function mayHaveChildren(value) {
return ( return (
value instanceof Ref || value instanceof Ref ||
@ -2190,17 +2190,17 @@ let ObjectLoader = (function() {
function addChildren(node, nodesToVisit) { function addChildren(node, nodesToVisit) {
if (node instanceof Dict || isStream(node)) { if (node instanceof Dict || isStream(node)) {
let dict = node instanceof Dict ? node : node.dict; const dict = node instanceof Dict ? node : node.dict;
let dictKeys = dict.getKeys(); const dictKeys = dict.getKeys();
for (let i = 0, ii = dictKeys.length; i < ii; i++) { for (let i = 0, ii = dictKeys.length; i < ii; i++) {
let rawValue = dict.getRaw(dictKeys[i]); const rawValue = dict.getRaw(dictKeys[i]);
if (mayHaveChildren(rawValue)) { if (mayHaveChildren(rawValue)) {
nodesToVisit.push(rawValue); nodesToVisit.push(rawValue);
} }
} }
} else if (Array.isArray(node)) { } else if (Array.isArray(node)) {
for (let i = 0, ii = node.length; i < ii; i++) { for (let i = 0, ii = node.length; i < ii; i++) {
let value = node[i]; const value = node[i];
if (mayHaveChildren(value)) { if (mayHaveChildren(value)) {
nodesToVisit.push(value); nodesToVisit.push(value);
} }
@ -2226,12 +2226,12 @@ let ObjectLoader = (function() {
return undefined; return undefined;
} }
let { keys, dict } = this; const { keys, dict } = this;
this.refSet = new RefSet(); this.refSet = new RefSet();
// Setup the initial nodes to visit. // Setup the initial nodes to visit.
let nodesToVisit = []; const nodesToVisit = [];
for (let i = 0, ii = keys.length; i < ii; i++) { for (let i = 0, ii = keys.length; i < ii; i++) {
let rawValue = dict.getRaw(keys[i]); const rawValue = dict.getRaw(keys[i]);
// Skip nodes that are guaranteed to be empty. // Skip nodes that are guaranteed to be empty.
if (rawValue !== undefined) { if (rawValue !== undefined) {
nodesToVisit.push(rawValue); nodesToVisit.push(rawValue);
@ -2241,8 +2241,8 @@ let ObjectLoader = (function() {
}, },
async _walk(nodesToVisit) { async _walk(nodesToVisit) {
let nodesToRevisit = []; const nodesToRevisit = [];
let pendingRequests = []; const pendingRequests = [];
// DFS walk of the object graph. // DFS walk of the object graph.
while (nodesToVisit.length) { while (nodesToVisit.length) {
let currentNode = nodesToVisit.pop(); let currentNode = nodesToVisit.pop();
@ -2265,10 +2265,10 @@ let ObjectLoader = (function() {
} }
} }
if (currentNode && currentNode.getBaseStreams) { if (currentNode && currentNode.getBaseStreams) {
let baseStreams = currentNode.getBaseStreams(); const baseStreams = currentNode.getBaseStreams();
let foundMissingData = false; let foundMissingData = false;
for (let i = 0, ii = baseStreams.length; i < ii; i++) { for (let i = 0, ii = baseStreams.length; i < ii; i++) {
let stream = baseStreams[i]; const stream = baseStreams[i];
if (stream.allChunksLoaded && !stream.allChunksLoaded()) { if (stream.allChunksLoaded && !stream.allChunksLoaded()) {
foundMissingData = true; foundMissingData = true;
pendingRequests.push({ begin: stream.start, end: stream.end }); pendingRequests.push({ begin: stream.start, end: stream.end });
@ -2286,7 +2286,7 @@ let ObjectLoader = (function() {
await this.xref.stream.manager.requestRanges(pendingRequests); await this.xref.stream.manager.requestRanges(pendingRequests);
for (let i = 0, ii = nodesToRevisit.length; i < ii; i++) { for (let i = 0, ii = nodesToRevisit.length; i < ii; i++) {
let node = nodesToRevisit[i]; const node = nodesToRevisit[i];
// Remove any reference nodes from the current `RefSet` so they // Remove any reference nodes from the current `RefSet` so they
// aren't skipped when we revist them. // aren't skipped when we revist them.
if (node instanceof Ref) { if (node instanceof Ref) {

31
src/core/parser.js
View File

@ -207,8 +207,8 @@ class Parser {
CR = 0xd; CR = 0xd;
const n = 10, const n = 10,
NUL = 0x0; NUL = 0x0;
let startPos = stream.pos, const startPos = stream.pos;
state = 0, let state = 0,
ch, ch,
maybeEIPos; maybeEIPos;
while ((ch = stream.getByte()) !== -1) { while ((ch = stream.getByte()) !== -1) {
@ -282,11 +282,10 @@ class Parser {
* @returns {number} The inline stream length. * @returns {number} The inline stream length.
*/ */
findDCTDecodeInlineStreamEnd(stream) { findDCTDecodeInlineStreamEnd(stream) {
let startPos = stream.pos, const startPos = stream.pos;
foundEOI = false, let foundEOI = false,
b, b,
markerLength, markerLength;
length;
while ((b = stream.getByte()) !== -1) { while ((b = stream.getByte()) !== -1) {
if (b !== 0xff) { if (b !== 0xff) {
// Not a valid marker. // Not a valid marker.
@ -367,7 +366,7 @@ class Parser {
break; break;
} }
} }
length = stream.pos - startPos; const length = stream.pos - startPos;
if (b === -1) { if (b === -1) {
warn( warn(
"Inline DCTDecode image stream: " + "Inline DCTDecode image stream: " +
@ -387,9 +386,8 @@ class Parser {
findASCII85DecodeInlineStreamEnd(stream) { findASCII85DecodeInlineStreamEnd(stream) {
const TILDE = 0x7e, const TILDE = 0x7e,
GT = 0x3e; GT = 0x3e;
let startPos = stream.pos, const startPos = stream.pos;
ch, let ch;
length;
while ((ch = stream.getByte()) !== -1) { while ((ch = stream.getByte()) !== -1) {
if (ch === TILDE) { if (ch === TILDE) {
const tildePos = stream.pos; const tildePos = stream.pos;
@ -415,7 +413,7 @@ class Parser {
} }
} }
} }
length = stream.pos - startPos; const length = stream.pos - startPos;
if (ch === -1) { if (ch === -1) {
warn( warn(
"Inline ASCII85Decode image stream: " + "Inline ASCII85Decode image stream: " +
@ -434,15 +432,14 @@ class Parser {
*/ */
findASCIIHexDecodeInlineStreamEnd(stream) { findASCIIHexDecodeInlineStreamEnd(stream) {
const GT = 0x3e; const GT = 0x3e;
let startPos = stream.pos, const startPos = stream.pos;
ch, let ch;
length;
while ((ch = stream.getByte()) !== -1) { while ((ch = stream.getByte()) !== -1) {
if (ch === GT) { if (ch === GT) {
break; break;
} }
} }
length = stream.pos - startPos; const length = stream.pos - startPos;
if (ch === -1) { if (ch === -1) {
warn( warn(
"Inline ASCIIHexDecode image stream: " + "Inline ASCIIHexDecode image stream: " +
@ -693,8 +690,8 @@ class Parser {
let maybeLength = length; let maybeLength = length;
if (Array.isArray(filter)) { if (Array.isArray(filter)) {
let filterArray = filter; const filterArray = filter;
let paramsArray = params; const paramsArray = params;
for (let i = 0, ii = filterArray.length; i < ii; ++i) { for (let i = 0, ii = filterArray.length; i < ii; ++i) {
filter = this.xref.fetchIfRef(filterArray[i]); filter = this.xref.fetchIfRef(filterArray[i]);
if (!isName(filter)) { if (!isName(filter)) {

12
src/core/pattern.js
View File

@ -937,12 +937,12 @@ Shadings.Dummy = (function DummyClosure() {
})(); })();
function getTilingPatternIR(operatorList, dict, args) { function getTilingPatternIR(operatorList, dict, args) {
let matrix = dict.getArray("Matrix"); const matrix = dict.getArray("Matrix");
let bbox = Util.normalizeRect(dict.getArray("BBox")); const bbox = Util.normalizeRect(dict.getArray("BBox"));
let xstep = dict.get("XStep"); const xstep = dict.get("XStep");
let ystep = dict.get("YStep"); const ystep = dict.get("YStep");
let paintType = dict.get("PaintType"); const paintType = dict.get("PaintType");
let tilingType = dict.get("TilingType"); const tilingType = dict.get("TilingType");
// Ensure that the pattern has a non-zero width and height, to prevent errors // Ensure that the pattern has a non-zero width and height, to prevent errors
// in `pattern_helper.js` (fixes issue8330.pdf). // in `pattern_helper.js` (fixes issue8330.pdf).

6
src/core/primitives.js
View File

@ -153,14 +153,14 @@ var Dict = (function DictClosure() {
Dict.empty = new Dict(null); Dict.empty = new Dict(null);
Dict.merge = function(xref, dictArray) { Dict.merge = function(xref, dictArray) {
let mergedDict = new Dict(xref); const mergedDict = new Dict(xref);
for (let i = 0, ii = dictArray.length; i < ii; i++) { for (let i = 0, ii = dictArray.length; i < ii; i++) {
let dict = dictArray[i]; const dict = dictArray[i];
if (!isDict(dict)) { if (!isDict(dict)) {
continue; continue;
} }
for (let keyName in dict._map) { for (const keyName in dict._map) {
if (mergedDict._map[keyName] !== undefined) { if (mergedDict._map[keyName] !== undefined) {
continue; continue;
} }

8
src/core/stream.js
View File

@ -76,7 +76,7 @@ var Stream = (function StreamClosure() {
var strEnd = this.end; var strEnd = this.end;
if (!length) { if (!length) {
let subarray = bytes.subarray(pos, strEnd); const subarray = bytes.subarray(pos, strEnd);
// `this.bytes` is always a `Uint8Array` here. // `this.bytes` is always a `Uint8Array` here.
return forceClamped ? new Uint8ClampedArray(subarray) : subarray; return forceClamped ? new Uint8ClampedArray(subarray) : subarray;
} }
@ -85,7 +85,7 @@ var Stream = (function StreamClosure() {
end = strEnd; end = strEnd;
} }
this.pos = end; this.pos = end;
let subarray = bytes.subarray(pos, end); const subarray = bytes.subarray(pos, end);
// `this.bytes` is always a `Uint8Array` here. // `this.bytes` is always a `Uint8Array` here.
return forceClamped ? new Uint8ClampedArray(subarray) : subarray; return forceClamped ? new Uint8ClampedArray(subarray) : subarray;
}, },
@ -134,7 +134,7 @@ var Stream = (function StreamClosure() {
var StringStream = (function StringStreamClosure() { var StringStream = (function StringStreamClosure() {
function StringStream(str) { function StringStream(str) {
let bytes = stringToBytes(str); const bytes = stringToBytes(str);
Stream.call(this, bytes); Stream.call(this, bytes);
} }
@ -235,7 +235,7 @@ var DecodeStream = (function DecodeStreamClosure() {
} }
this.pos = end; this.pos = end;
let subarray = this.buffer.subarray(pos, end); const subarray = this.buffer.subarray(pos, end);
// `this.buffer` is either a `Uint8Array` or `Uint8ClampedArray` here. // `this.buffer` is either a `Uint8Array` or `Uint8ClampedArray` here.
return forceClamped && !(subarray instanceof Uint8ClampedArray) return forceClamped && !(subarray instanceof Uint8ClampedArray)
? new Uint8ClampedArray(subarray) ? new Uint8ClampedArray(subarray)

4
src/display/api.js
View File

@ -1828,7 +1828,9 @@ const PDFWorker = (function PDFWorkerClosure() {
}); });
const sendTest = () => { const sendTest = () => {
let testObj = new Uint8Array([this.postMessageTransfers ? 255 : 0]); const testObj = new Uint8Array([
this.postMessageTransfers ? 255 : 0,
]);
// Some versions of Opera throw a DATA_CLONE_ERR on serializing the // Some versions of Opera throw a DATA_CLONE_ERR on serializing the
// typed array. Also, checking if we can use transfers. // typed array. Also, checking if we can use transfers.
try { try {

2
src/display/api_compatibility.js
View File

@ -13,7 +13,7 @@
* limitations under the License. * limitations under the License.
*/ */
let compatibilityParams = Object.create(null); const compatibilityParams = Object.create(null);
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) { if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
const { isNodeJS } = require("../shared/is_node.js"); const { isNodeJS } = require("../shared/is_node.js");

8
src/display/canvas.js
View File

@ -769,7 +769,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var backdrop = smask.backdrop || null; var backdrop = smask.backdrop || null;
if (!smask.transferMap && webGLContext.isEnabled) { if (!smask.transferMap && webGLContext.isEnabled) {
let composed = webGLContext.composeSMask({ const composed = webGLContext.composeSMask({
layer: layerCtx.canvas, layer: layerCtx.canvas,
mask, mask,
properties: { properties: {
@ -1274,7 +1274,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
// but the line width needs to be adjusted by the current transform, so // but the line width needs to be adjusted by the current transform, so
// we must scale it. To properly fix this we should be using a pattern // we must scale it. To properly fix this we should be using a pattern
// transform instead (see #10955). // transform instead (see #10955).
let transform = ctx.mozCurrentTransform; const transform = ctx.mozCurrentTransform;
const scale = Util.singularValueDecompose2dScale(transform)[0]; const scale = Util.singularValueDecompose2dScale(transform)[0];
ctx.strokeStyle = strokeColor.getPattern(ctx, this); ctx.strokeStyle = strokeColor.getPattern(ctx, this);
ctx.lineWidth = Math.max( ctx.lineWidth = Math.max(
@ -1501,7 +1501,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var isAddToPathSet = !!( var isAddToPathSet = !!(
textRenderingMode & TextRenderingMode.ADD_TO_PATH_FLAG textRenderingMode & TextRenderingMode.ADD_TO_PATH_FLAG
); );
let patternFill = current.patternFill && font.data; const patternFill = current.patternFill && font.data;
var addToPath; var addToPath;
if (font.disableFontFace || isAddToPathSet || patternFill) { if (font.disableFontFace || isAddToPathSet || patternFill) {
@ -1612,7 +1612,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
// TODO: Patterns are not applied correctly to text if a non-embedded // TODO: Patterns are not applied correctly to text if a non-embedded
// font is used. E.g. issue 8111 and ShowText-ShadingPattern.pdf. // font is used. E.g. issue 8111 and ShowText-ShadingPattern.pdf.
ctx.save(); ctx.save();
let pattern = current.fillColor.getPattern(ctx, this); const pattern = current.fillColor.getPattern(ctx, this);
patternTransform = ctx.mozCurrentTransform; patternTransform = ctx.mozCurrentTransform;
ctx.restore(); ctx.restore();
ctx.fillStyle = pattern; ctx.fillStyle = pattern;

30
src/display/content_disposition.js
View File

@ -47,7 +47,7 @@ function getFilenameFromContentDispositionHeader(contentDisposition) {
tmp = rfc2231getparam(contentDisposition); tmp = rfc2231getparam(contentDisposition);
if (tmp) { if (tmp) {
// RFC 2047, section // RFC 2047, section
let filename = rfc2047decode(tmp); const filename = rfc2047decode(tmp);
return fixupEncoding(filename); return fixupEncoding(filename);
} }
@ -84,8 +84,8 @@ function getFilenameFromContentDispositionHeader(contentDisposition) {
return value; return value;
} }
try { try {
let decoder = new TextDecoder(encoding, { fatal: true }); const decoder = new TextDecoder(encoding, { fatal: true });
let bytes = Array.from(value, function(ch) { const bytes = Array.from(value, function(ch) {
return ch.charCodeAt(0) & 0xff; return ch.charCodeAt(0) & 0xff;
}); });
value = decoder.decode(new Uint8Array(bytes)); value = decoder.decode(new Uint8Array(bytes));
@ -116,13 +116,13 @@ function getFilenameFromContentDispositionHeader(contentDisposition) {
return value; return value;
} }
function rfc2231getparam(contentDisposition) { function rfc2231getparam(contentDisposition) {
let matches = [], const matches = [];
match; let match;
// Iterate over all filename*n= and filename*n*= with n being an integer // Iterate over all filename*n= and filename*n*= with n being an integer
// of at least zero. Any non-zero number must not start with '0'. // of at least zero. Any non-zero number must not start with '0'.
let iter = toParamRegExp("filename\\*((?!0\\d)\\d+)(\\*?)", "ig"); const iter = toParamRegExp("filename\\*((?!0\\d)\\d+)(\\*?)", "ig");
while ((match = iter.exec(contentDisposition)) !== null) { while ((match = iter.exec(contentDisposition)) !== null) {
let [, n, quot, part] = match; let [, n, quot, part] = match; // eslint-disable-line prefer-const
n = parseInt(n, 10); n = parseInt(n, 10);
if (n in matches) { if (n in matches) {
// Ignore anything after the invalid second filename*0. // Ignore anything after the invalid second filename*0.
@ -133,13 +133,13 @@ function getFilenameFromContentDispositionHeader(contentDisposition) {
} }
matches[n] = [quot, part]; matches[n] = [quot, part];
} }
let parts = []; const parts = [];
for (let n = 0; n < matches.length; ++n) { for (let n = 0; n < matches.length; ++n) {
if (!(n in matches)) { if (!(n in matches)) {
// Numbers must be consecutive. Truncate when there is a hole. // Numbers must be consecutive. Truncate when there is a hole.
break; break;
} }
let [quot, part] = matches[n]; let [quot, part] = matches[n]; // eslint-disable-line prefer-const
part = rfc2616unquote(part); part = rfc2616unquote(part);
if (quot) { if (quot) {
part = unescape(part); part = unescape(part);
@ -153,10 +153,10 @@ function getFilenameFromContentDispositionHeader(contentDisposition) {
} }
function rfc2616unquote(value) { function rfc2616unquote(value) {
if (value.startsWith('"')) { if (value.startsWith('"')) {
let parts = value.slice(1).split('\\"'); const parts = value.slice(1).split('\\"');
// Find the first unescaped " and terminate there. // Find the first unescaped " and terminate there.
for (let i = 0; i < parts.length; ++i) { for (let i = 0; i < parts.length; ++i) {
let quotindex = parts[i].indexOf('"'); const quotindex = parts[i].indexOf('"');
if (quotindex !== -1) { if (quotindex !== -1) {
parts[i] = parts[i].slice(0, quotindex); parts[i] = parts[i].slice(0, quotindex);
parts.length = i + 1; // Truncates and stop the iteration. parts.length = i + 1; // Truncates and stop the iteration.
@ -169,17 +169,17 @@ function getFilenameFromContentDispositionHeader(contentDisposition) {
} }
function rfc5987decode(extvalue) { function rfc5987decode(extvalue) {
// Decodes "ext-value" from RFC 5987. // Decodes "ext-value" from RFC 5987.
let encodingend = extvalue.indexOf("'"); const encodingend = extvalue.indexOf("'");
if (encodingend === -1) { if (encodingend === -1) {
// Some servers send "filename*=" without encoding 'language' prefix, // Some servers send "filename*=" without encoding 'language' prefix,
// e.g. in https://github.com/Rob--W/open-in-browser/issues/26 // e.g. in https://github.com/Rob--W/open-in-browser/issues/26
// Let's accept the value like Firefox (57) (Chrome 62 rejects it). // Let's accept the value like Firefox (57) (Chrome 62 rejects it).
return extvalue; return extvalue;
} }
let encoding = extvalue.slice(0, encodingend); const encoding = extvalue.slice(0, encodingend);
let langvalue = extvalue.slice(encodingend + 1); const langvalue = extvalue.slice(encodingend + 1);
// Ignore language (RFC 5987 section 3.2.1, and RFC 6266 section 4.1 ). // Ignore language (RFC 5987 section 3.2.1, and RFC 6266 section 4.1 ).
let value = langvalue.replace(/^[^']*'/, ""); const value = langvalue.replace(/^[^']*'/, "");
return textdecode(encoding, value); return textdecode(encoding, value);
} }
function rfc2047decode(value) { function rfc2047decode(value) {

4
src/display/display_utils.js
View File

@ -461,8 +461,8 @@ class StatTimer {
toString() { toString() {
// Find the longest name for padding purposes. // Find the longest name for padding purposes.
let outBuf = [], const outBuf = [];
longest = 0; let longest = 0;
for (const time of this.times) { for (const time of this.times) {
const name = time.name; const name = time.name;
if (name.length > longest) { if (name.length > longest) {

24
src/display/font_loader.js
View File

@ -271,17 +271,17 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
); );
} }
function spliceString(s, offset, remove, insert) { function spliceString(s, offset, remove, insert) {
let chunk1 = s.substring(0, offset); const chunk1 = s.substring(0, offset);
let chunk2 = s.substring(offset + remove); const chunk2 = s.substring(offset + remove);
return chunk1 + insert + chunk2; return chunk1 + insert + chunk2;
} }
let i, ii; let i, ii;
// The temporary canvas is used to determine if fonts are loaded. // The temporary canvas is used to determine if fonts are loaded.
let canvas = document.createElement("canvas"); const canvas = document.createElement("canvas");
canvas.width = 1; canvas.width = 1;
canvas.height = 1; canvas.height = 1;
let ctx = canvas.getContext("2d"); const ctx = canvas.getContext("2d");
let called = 0; let called = 0;
function isFontReady(name, callback) { function isFontReady(name, callback) {
@ -294,7 +294,7 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
} }
ctx.font = "30px " + name; ctx.font = "30px " + name;
ctx.fillText(".", 0, 20); ctx.fillText(".", 0, 20);
let imageData = ctx.getImageData(0, 0, 1, 1); const imageData = ctx.getImageData(0, 0, 1, 1);
if (imageData.data[3] > 0) { if (imageData.data[3] > 0) {
callback(); callback();
return; return;
@ -309,7 +309,7 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
// TODO: This could maybe be made faster by avoiding the btoa of the full // TODO: This could maybe be made faster by avoiding the btoa of the full
// font by splitting it in chunks before hand and padding the font id. // font by splitting it in chunks before hand and padding the font id.
let data = this._loadTestFont; let data = this._loadTestFont;
let COMMENT_OFFSET = 976; // has to be on 4 byte boundary (for checksum) const COMMENT_OFFSET = 976; // has to be on 4 byte boundary (for checksum)
data = spliceString( data = spliceString(
data, data,
COMMENT_OFFSET, COMMENT_OFFSET,
@ -317,8 +317,8 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
loadTestFontId loadTestFontId
); );
// CFF checksum is important for IE, adjusting it // CFF checksum is important for IE, adjusting it
let CFF_CHECKSUM_OFFSET = 16; const CFF_CHECKSUM_OFFSET = 16;
let XXXX_VALUE = 0x58585858; // the "comment" filled with 'X' const XXXX_VALUE = 0x58585858; // the "comment" filled with 'X'
let checksum = int32(data, CFF_CHECKSUM_OFFSET); let checksum = int32(data, CFF_CHECKSUM_OFFSET);
for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) { for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
checksum = (checksum - XXXX_VALUE + int32(loadTestFontId, i)) | 0; checksum = (checksum - XXXX_VALUE + int32(loadTestFontId, i)) | 0;
@ -334,13 +334,13 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
const rule = `@font-face {font-family:"${loadTestFontId}";src:${url}}`; const rule = `@font-face {font-family:"${loadTestFontId}";src:${url}}`;
this.insertRule(rule); this.insertRule(rule);
let names = []; const names = [];
for (i = 0, ii = fonts.length; i < ii; i++) { for (i = 0, ii = fonts.length; i < ii; i++) {
names.push(fonts[i].loadedName); names.push(fonts[i].loadedName);
} }
names.push(loadTestFontId); names.push(loadTestFontId);
let div = document.createElement("div"); const div = document.createElement("div");
div.setAttribute( div.setAttribute(
"style", "style",
"visibility: hidden;" + "visibility: hidden;" +
@ -348,7 +348,7 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
"position: absolute; top: 0px; left: 0px;" "position: absolute; top: 0px; left: 0px;"
); );
for (i = 0, ii = names.length; i < ii; ++i) { for (i = 0, ii = names.length; i < ii; ++i) {
let span = document.createElement("span"); const span = document.createElement("span");
span.textContent = "Hi"; span.textContent = "Hi";
span.style.fontFamily = names[i]; span.style.fontFamily = names[i];
div.appendChild(span); div.appendChild(span);
@ -383,7 +383,7 @@ class FontFaceObject {
) { ) {
this.compiledGlyphs = Object.create(null); this.compiledGlyphs = Object.create(null);
// importing translated data // importing translated data
for (let i in translatedData) { for (const i in translatedData) {
this[i] = translatedData[i]; this[i] = translatedData[i];
} }
this.isEvalSupported = isEvalSupported !== false; this.isEvalSupported = isEvalSupported !== false;

16
src/display/metadata.js
View File

@ -24,7 +24,7 @@ class Metadata {
data = this._repair(data); data = this._repair(data);
// Convert the string to an XML document. // Convert the string to an XML document.
let parser = new SimpleXMLParser(); const parser = new SimpleXMLParser();
const xmlDocument = parser.parseFromString(data); const xmlDocument = parser.parseFromString(data);
this._metadata = Object.create(null); this._metadata = Object.create(null);
@ -39,7 +39,7 @@ class Metadata {
return data return data
.replace(/^([^<]+)/, "") .replace(/^([^<]+)/, "")
.replace(/>\\376\\377([^<]+)/g, function(all, codes) { .replace(/>\\376\\377([^<]+)/g, function(all, codes) {
let bytes = codes const bytes = codes
.replace(/\\([0-3])([0-7])([0-7])/g, function(code, d1, d2, d3) { .replace(/\\([0-3])([0-7])([0-7])/g, function(code, d1, d2, d3) {
return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1); return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
}) })
@ -61,7 +61,7 @@ class Metadata {
let chars = ""; let chars = "";
for (let i = 0, ii = bytes.length; i < ii; i += 2) { for (let i = 0, ii = bytes.length; i < ii; i += 2) {
let code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1); const code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);
if ( if (
code >= 32 && code >= 32 &&
code < 127 && code < 127 &&
@ -90,22 +90,22 @@ class Metadata {
} }
} }
let nodeName = rdf ? rdf.nodeName.toLowerCase() : null; const nodeName = rdf ? rdf.nodeName.toLowerCase() : null;
if (!rdf || nodeName !== "rdf:rdf" || !rdf.hasChildNodes()) { if (!rdf || nodeName !== "rdf:rdf" || !rdf.hasChildNodes()) {
return; return;
} }
let children = rdf.childNodes; const children = rdf.childNodes;
for (let i = 0, ii = children.length; i < ii; i++) { for (let i = 0, ii = children.length; i < ii; i++) {
let desc = children[i]; const desc = children[i];
if (desc.nodeName.toLowerCase() !== "rdf:description") { if (desc.nodeName.toLowerCase() !== "rdf:description") {
continue; continue;
} }
for (let j = 0, jj = desc.childNodes.length; j < jj; j++) { for (let j = 0, jj = desc.childNodes.length; j < jj; j++) {
if (desc.childNodes[j].nodeName.toLowerCase() !== "#text") { if (desc.childNodes[j].nodeName.toLowerCase() !== "#text") {
let entry = desc.childNodes[j]; const entry = desc.childNodes[j];
let name = entry.nodeName.toLowerCase(); const name = entry.nodeName.toLowerCase();
this._metadata[name] = entry.textContent.trim(); this._metadata[name] = entry.textContent.trim();
} }

6
src/display/network_utils.js
View File

@ -27,12 +27,12 @@ function validateRangeRequestCapabilities({
disableRange, disableRange,
}) { }) {
assert(rangeChunkSize > 0, "Range chunk size must be larger than zero"); assert(rangeChunkSize > 0, "Range chunk size must be larger than zero");
let returnValues = { const returnValues = {
allowRangeRequests: false, allowRangeRequests: false,
suggestedLength: undefined, suggestedLength: undefined,
}; };
let length = parseInt(getResponseHeader("Content-Length"), 10); const length = parseInt(getResponseHeader("Content-Length"), 10);
if (!Number.isInteger(length)) { if (!Number.isInteger(length)) {
return returnValues; return returnValues;
} }
@ -52,7 +52,7 @@ function validateRangeRequestCapabilities({
return returnValues; return returnValues;
} }
let contentEncoding = getResponseHeader("Content-Encoding") || "identity"; const contentEncoding = getResponseHeader("Content-Encoding") || "identity";
if (contentEncoding !== "identity") { if (contentEncoding !== "identity") {
return returnValues; return returnValues;
} }

36
src/display/node_stream.js
View File

@ -14,10 +14,10 @@
*/ */
/* globals __non_webpack_require__ */ /* globals __non_webpack_require__ */
let fs = __non_webpack_require__("fs"); const fs = __non_webpack_require__("fs");
let http = __non_webpack_require__("http"); const http = __non_webpack_require__("http");
let https = __non_webpack_require__("https"); const https = __non_webpack_require__("https");
let url = __non_webpack_require__("url"); const url = __non_webpack_require__("url");
import { import {
AbortException, AbortException,
@ -33,7 +33,7 @@ import {
const fileUriRegex = /^file:\/\/\/[a-zA-Z]:\//; const fileUriRegex = /^file:\/\/\/[a-zA-Z]:\//;
function parseUrl(sourceUrl) { function parseUrl(sourceUrl) {
let parsedUrl = url.parse(sourceUrl); const parsedUrl = url.parse(sourceUrl);
if (parsedUrl.protocol === "file:" || parsedUrl.host) { if (parsedUrl.protocol === "file:" || parsedUrl.host) {
return parsedUrl; return parsedUrl;
} }
@ -78,7 +78,7 @@ class PDFNodeStream {
if (end <= this._progressiveDataLength) { if (end <= this._progressiveDataLength) {
return null; return null;
} }
let rangeReader = this.isFsUrl const rangeReader = this.isFsUrl
? new PDFNodeStreamFsRangeReader(this, start, end) ? new PDFNodeStreamFsRangeReader(this, start, end)
: new PDFNodeStreamRangeReader(this, start, end); : new PDFNodeStreamRangeReader(this, start, end);
this._rangeRequestReaders.push(rangeReader); this._rangeRequestReaders.push(rangeReader);
@ -90,7 +90,7 @@ class PDFNodeStream {
this._fullRequestReader.cancel(reason); this._fullRequestReader.cancel(reason);
} }
let readers = this._rangeRequestReaders.slice(0); const readers = this._rangeRequestReaders.slice(0);
readers.forEach(function(reader) { readers.forEach(function(reader) {
reader.cancel(reason); reader.cancel(reason);
}); });
@ -103,7 +103,7 @@ class BaseFullReader {
this._done = false; this._done = false;
this._storedError = null; this._storedError = null;
this.onProgress = null; this.onProgress = null;
let source = stream.source; const source = stream.source;
this._contentLength = source.length; // optional this._contentLength = source.length; // optional
this._loaded = 0; this._loaded = 0;
this._filename = null; this._filename = null;
@ -151,7 +151,7 @@ class BaseFullReader {
throw this._storedError; throw this._storedError;
} }
let chunk = this._readableStream.read(); const chunk = this._readableStream.read();
if (chunk === null) { if (chunk === null) {
this._readCapability = createPromiseCapability(); this._readCapability = createPromiseCapability();
return this.read(); return this.read();
@ -164,7 +164,7 @@ class BaseFullReader {
}); });
} }
// Ensure that `read()` method returns ArrayBuffer. // Ensure that `read()` method returns ArrayBuffer.
let buffer = new Uint8Array(chunk).buffer; const buffer = new Uint8Array(chunk).buffer;
return { value: buffer, done: false }; return { value: buffer, done: false };
} }
@ -222,7 +222,7 @@ class BaseRangeReader {
this._loaded = 0; this._loaded = 0;
this._readableStream = null; this._readableStream = null;
this._readCapability = createPromiseCapability(); this._readCapability = createPromiseCapability();
let source = stream.source; const source = stream.source;
this._isStreamingSupported = !source.disableStream; this._isStreamingSupported = !source.disableStream;
} }
@ -239,7 +239,7 @@ class BaseRangeReader {
throw this._storedError; throw this._storedError;
} }
let chunk = this._readableStream.read(); const chunk = this._readableStream.read();
if (chunk === null) { if (chunk === null) {
this._readCapability = createPromiseCapability(); this._readCapability = createPromiseCapability();
return this.read(); return this.read();
@ -249,7 +249,7 @@ class BaseRangeReader {
this.onProgress({ loaded: this._loaded }); this.onProgress({ loaded: this._loaded });
} }
// Ensure that `read()` method returns ArrayBuffer. // Ensure that `read()` method returns ArrayBuffer.
let buffer = new Uint8Array(chunk).buffer; const buffer = new Uint8Array(chunk).buffer;
return { value: buffer, done: false }; return { value: buffer, done: false };
} }
@ -308,7 +308,7 @@ class PDFNodeStreamFullReader extends BaseFullReader {
constructor(stream) { constructor(stream) {
super(stream); super(stream);
let handleResponse = response => { const handleResponse = response => {
if (response.statusCode === 404) { if (response.statusCode === 404) {
const error = new MissingPDFException(`Missing PDF "${this._url}".`); const error = new MissingPDFException(`Missing PDF "${this._url}".`);
this._storedError = error; this._storedError = error;
@ -323,7 +323,7 @@ class PDFNodeStreamFullReader extends BaseFullReader {
// here: https://nodejs.org/api/http.html#http_message_headers. // here: https://nodejs.org/api/http.html#http_message_headers.
return this._readableStream.headers[name.toLowerCase()]; return this._readableStream.headers[name.toLowerCase()];
}; };
let { const {
allowRangeRequests, allowRangeRequests,
suggestedLength, suggestedLength,
} = validateRangeRequestCapabilities({ } = validateRangeRequestCapabilities({
@ -369,8 +369,8 @@ class PDFNodeStreamRangeReader extends BaseRangeReader {
super(stream); super(stream);
this._httpHeaders = {}; this._httpHeaders = {};
for (let property in stream.httpHeaders) { for (const property in stream.httpHeaders) {
let value = stream.httpHeaders[property]; const value = stream.httpHeaders[property];
if (typeof value === "undefined") { if (typeof value === "undefined") {
continue; continue;
} }
@ -378,7 +378,7 @@ class PDFNodeStreamRangeReader extends BaseRangeReader {
} }
this._httpHeaders["Range"] = `bytes=${start}-${end - 1}`; this._httpHeaders["Range"] = `bytes=${start}-${end - 1}`;
let handleResponse = response => { const handleResponse = response => {
if (response.statusCode === 404) { if (response.statusCode === 404) {
const error = new MissingPDFException(`Missing PDF "${this._url}".`); const error = new MissingPDFException(`Missing PDF "${this._url}".`);
this._storedError = error; this._storedError = error;

2
src/display/pattern_helper.js
View File

@ -555,7 +555,7 @@ var TilingPattern = (function TilingPatternClosure() {
paintType, paintType,
color color
) { ) {
let context = graphics.ctx, const context = graphics.ctx,
current = graphics.current; current = graphics.current;
switch (paintType) { switch (paintType) {
case PaintType.COLORED: case PaintType.COLORED:

10
src/display/text_layer.js
View File

@ -594,11 +594,11 @@ var renderTextLayer = (function renderTextLayerClosure() {
}, },
_render: function TextLayer_render(timeout) { _render: function TextLayer_render(timeout) {
let capability = createPromiseCapability(); const capability = createPromiseCapability();
let styleCache = Object.create(null); let styleCache = Object.create(null);
// The temporary canvas is used to measure text length in the DOM. // The temporary canvas is used to measure text length in the DOM.
let canvas = document.createElement("canvas"); const canvas = document.createElement("canvas");
if ( if (
typeof PDFJSDev === "undefined" || typeof PDFJSDev === "undefined" ||
PDFJSDev.test("MOZCENTRAL || GENERIC") PDFJSDev.test("MOZCENTRAL || GENERIC")
@ -608,12 +608,12 @@ var renderTextLayer = (function renderTextLayerClosure() {
this._layoutTextCtx = canvas.getContext("2d", { alpha: false }); this._layoutTextCtx = canvas.getContext("2d", { alpha: false });
if (this._textContent) { if (this._textContent) {
let textItems = this._textContent.items; const textItems = this._textContent.items;
let textStyles = this._textContent.styles; const textStyles = this._textContent.styles;
this._processItems(textItems, textStyles); this._processItems(textItems, textStyles);
capability.resolve(); capability.resolve();
} else if (this._textContentStream) { } else if (this._textContentStream) {
let pump = () => { const pump = () => {
this._reader.read().then(({ value, done }) => { this._reader.read().then(({ value, done }) => {
if (done) { if (done) {
capability.resolve(); capability.resolve();

15
src/display/xml_parser.js
View File

@ -67,9 +67,8 @@ class XMLParserBase {
} }
_parseContent(s, start) { _parseContent(s, start) {
let pos = start, const attributes = [];
name, let pos = start;
attributes = [];
function skipWs() { function skipWs() {
while (pos < s.length && isWhitespace(s, pos)) { while (pos < s.length && isWhitespace(s, pos)) {
@ -85,7 +84,7 @@ class XMLParserBase {
) { ) {
++pos; ++pos;
} }
name = s.substring(start, pos); const name = s.substring(start, pos);
skipWs(); skipWs();
while ( while (
pos < s.length && pos < s.length &&
@ -130,9 +129,7 @@ class XMLParserBase {
} }
_parseProcessingInstruction(s, start) { _parseProcessingInstruction(s, start) {
let pos = start, let pos = start;
name,
value;
function skipWs() { function skipWs() {
while (pos < s.length && isWhitespace(s, pos)) { while (pos < s.length && isWhitespace(s, pos)) {
@ -148,13 +145,13 @@ class XMLParserBase {
) { ) {
++pos; ++pos;
} }
name = s.substring(start, pos); const name = s.substring(start, pos);
skipWs(); skipWs();
const attrStart = pos; const attrStart = pos;
while (pos < s.length && (s[pos] !== "?" || s[pos + 1] !== ">")) { while (pos < s.length && (s[pos] !== "?" || s[pos + 1] !== ">")) {
++pos; ++pos;
} }
value = s.substring(attrStart, pos); const value = s.substring(attrStart, pos);
return { return {
name, name,
value, value,

12
src/pdf.js
View File

@ -27,18 +27,18 @@ var pdfjsDisplayTextLayer = require("./display/text_layer.js");
var pdfjsDisplayAnnotationLayer = require("./display/annotation_layer.js"); var pdfjsDisplayAnnotationLayer = require("./display/annotation_layer.js");
var pdfjsDisplayDisplayUtils = require("./display/display_utils.js"); var pdfjsDisplayDisplayUtils = require("./display/display_utils.js");
var pdfjsDisplaySVG = require("./display/svg.js"); var pdfjsDisplaySVG = require("./display/svg.js");
let pdfjsDisplayWorkerOptions = require("./display/worker_options.js"); const pdfjsDisplayWorkerOptions = require("./display/worker_options.js");
let pdfjsDisplayAPICompatibility = require("./display/api_compatibility.js"); const pdfjsDisplayAPICompatibility = require("./display/api_compatibility.js");
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) { if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
const { isNodeJS } = require("./shared/is_node.js"); const { isNodeJS } = require("./shared/is_node.js");
if (isNodeJS) { if (isNodeJS) {
let PDFNodeStream = require("./display/node_stream.js").PDFNodeStream; const PDFNodeStream = require("./display/node_stream.js").PDFNodeStream;
pdfjsDisplayAPI.setPDFNetworkStreamFactory(params => { pdfjsDisplayAPI.setPDFNetworkStreamFactory(params => {
return new PDFNodeStream(params); return new PDFNodeStream(params);
}); });
} else { } else {
let PDFNetworkStream = require("./display/network.js").PDFNetworkStream; const PDFNetworkStream = require("./display/network.js").PDFNetworkStream;
let PDFFetchStream; let PDFFetchStream;
if (pdfjsDisplayDisplayUtils.isFetchSupported()) { if (pdfjsDisplayDisplayUtils.isFetchSupported()) {
PDFFetchStream = require("./display/fetch_stream.js").PDFFetchStream; PDFFetchStream = require("./display/fetch_stream.js").PDFFetchStream;
@ -54,9 +54,9 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
}); });
} }
} else if (PDFJSDev.test("CHROME")) { } else if (PDFJSDev.test("CHROME")) {
let PDFNetworkStream = require("./display/network.js").PDFNetworkStream; const PDFNetworkStream = require("./display/network.js").PDFNetworkStream;
let PDFFetchStream; let PDFFetchStream;
let isChromeWithFetchCredentials = function() { const isChromeWithFetchCredentials = function() {
// fetch does not include credentials until Chrome 61.0.3138.0 and later. // fetch does not include credentials until Chrome 61.0.3138.0 and later.
// https://chromium.googlesource.com/chromium/src/+/2e231cf052ca5e68e22baf0008ac9e5e29121707 // https://chromium.googlesource.com/chromium/src/+/2e231cf052ca5e68e22baf0008ac9e5e29121707
try { try {

7
src/shared/compatibility.js
View File

@ -93,12 +93,12 @@ if (
const OriginalDOMTokenListRemove = DOMTokenList.prototype.remove; const OriginalDOMTokenListRemove = DOMTokenList.prototype.remove;
DOMTokenList.prototype.add = function(...tokens) { DOMTokenList.prototype.add = function(...tokens) {
for (let token of tokens) { for (const token of tokens) {
OriginalDOMTokenListAdd.call(this, token); OriginalDOMTokenListAdd.call(this, token);
} }
}; };
DOMTokenList.prototype.remove = function(...tokens) { DOMTokenList.prototype.remove = function(...tokens) {
for (let token of tokens) { for (const token of tokens) {
OriginalDOMTokenListRemove.call(this, token); OriginalDOMTokenListRemove.call(this, token);
} }
}; };
@ -117,7 +117,8 @@ if (
} }
DOMTokenList.prototype.toggle = function(token) { DOMTokenList.prototype.toggle = function(token) {
let force = arguments.length > 1 ? !!arguments[1] : !this.contains(token); const force =
arguments.length > 1 ? !!arguments[1] : !this.contains(token);
return this[force ? "add" : "remove"](token), force; return this[force ? "add" : "remove"](token), force;
}; };
})(); })();

2
src/shared/util.js
View File

@ -804,7 +804,7 @@ function utf8StringToString(str) {
} }
function isEmptyObj(obj) { function isEmptyObj(obj) {
for (let key in obj) { for (const key in obj) {
return false; return false;
} }
return true; return true;

12
test/add_test.js
View File

@ -14,7 +14,7 @@ if (process.argv.length < 3) {
process.exit(1); process.exit(1);
} }
let file = process.argv[2]; const file = process.argv[2];
if (!file.startsWith(pdfFolder)) { if (!file.startsWith(pdfFolder)) {
throw new Error(`PDF file must be in '${pdfFolder}' directory.`); throw new Error(`PDF file must be in '${pdfFolder}' directory.`);
} }
@ -46,7 +46,7 @@ calculateMD5(file, (err, md5) => {
throw new Error(err); throw new Error(err);
} }
let contents = fs.readFileSync(gitIgnore, "utf8").split("\n"); let contents = fs.readFileSync(gitIgnore, "utf8").split("\n");
let randomLine = getRandomArbitrary(10, contents.length - 2); const randomLine = getRandomArbitrary(10, contents.length - 2);
contents.splice( contents.splice(
randomLine, randomLine,
0, 0,
@ -55,10 +55,10 @@ calculateMD5(file, (err, md5) => {
fs.writeFileSync("test/pdfs/.gitignore", contents.join("\n")); fs.writeFileSync("test/pdfs/.gitignore", contents.join("\n"));
contents = fs.readFileSync(testManifest, "utf8"); contents = fs.readFileSync(testManifest, "utf8");
let pdf = file.substring(file.lastIndexOf("/") + 1, file.length - 4); const pdf = file.substring(file.lastIndexOf("/") + 1, file.length - 4);
let randomPoint = getRandomArbitrary(100, contents.length - 20); const randomPoint = getRandomArbitrary(100, contents.length - 20);
let bracket = contents.indexOf("},\n", randomPoint); const bracket = contents.indexOf("},\n", randomPoint);
let out = const out =
contents.substring(0, bracket) + contents.substring(0, bracket) +
"},\n" + "},\n" +
` { "id": "${pdf}",\n` + ` { "id": "${pdf}",\n` +

16
test/driver.js
View File

@ -119,7 +119,7 @@ var rasterizeAnnotationLayer = (function rasterizeAnnotationLayerClosure() {
* the overrides file because the browser does not resolve that when the * the overrides file because the browser does not resolve that when the
* styles are inserted via XHR. Therefore, we load and combine them here. * styles are inserted via XHR. Therefore, we load and combine them here.
*/ */
let styles = { const styles = {
common: { common: {
file: "../web/annotation_layer_builder.css", file: "../web/annotation_layer_builder.css",
promise: null, promise: null,
@ -137,9 +137,9 @@ var rasterizeAnnotationLayer = (function rasterizeAnnotationLayerClosure() {
} }
// Load the style files and cache the results. // Load the style files and cache the results.
for (let key in styles) { for (const key in styles) {
styles[key].promise = new Promise(function(resolve, reject) { styles[key].promise = new Promise(function(resolve, reject) {
let xhr = new XMLHttpRequest(); const xhr = new XMLHttpRequest();
xhr.open("GET", styles[key].file); xhr.open("GET", styles[key].file);
xhr.onload = function() { xhr.onload = function() {
resolve(xhr.responseText); resolve(xhr.responseText);
@ -379,14 +379,14 @@ var Driver = (function DriverClosure() {
this._done(); this._done();
return; return;
} }
let task = this.manifest[this.currentTask]; const task = this.manifest[this.currentTask];
task.round = 0; task.round = 0;
task.pageNum = task.firstPage || 1; task.pageNum = task.firstPage || 1;
task.stats = { times: [] }; task.stats = { times: [] };
this._log('Loading file "' + task.file + '"\n'); this._log('Loading file "' + task.file + '"\n');
let absoluteUrl = new URL(task.file, window.location).href; const absoluteUrl = new URL(task.file, window.location).href;
try { try {
const loadingTask = pdfjsLib.getDocument({ const loadingTask = pdfjsLib.getDocument({
url: absoluteUrl, url: absoluteUrl,
@ -419,18 +419,18 @@ var Driver = (function DriverClosure() {
_cleanup() { _cleanup() {
// Clear out all the stylesheets since a new one is created for each font. // Clear out all the stylesheets since a new one is created for each font.
while (document.styleSheets.length > 0) { while (document.styleSheets.length > 0) {
let styleSheet = document.styleSheets[0]; const styleSheet = document.styleSheets[0];
while (styleSheet.cssRules.length > 0) { while (styleSheet.cssRules.length > 0) {
styleSheet.deleteRule(0); styleSheet.deleteRule(0);
} }
styleSheet.ownerNode.remove(); styleSheet.ownerNode.remove();
} }
let body = document.body; const body = document.body;
while (body.lastChild !== this.end) { while (body.lastChild !== this.end) {
body.removeChild(body.lastChild); body.removeChild(body.lastChild);
} }
let destroyedPromises = []; const destroyedPromises = [];
// Wipe out the link to the pdfdoc so it can be GC'ed. // Wipe out the link to the pdfdoc so it can be GC'ed.
for (let i = 0; i < this.manifest.length; i++) { for (let i = 0; i < this.manifest.length; i++) {
if (this.manifest[i].pdfDoc) { if (this.manifest[i].pdfDoc) {

12
test/unit/annotation_spec.js
View File

@ -1174,20 +1174,22 @@ describe("annotation", function() {
"should correctly parse a Dest, which violates the specification " + "should correctly parse a Dest, which violates the specification " +
"by containing a dictionary", "by containing a dictionary",
function(done) { function(done) {
let destDict = new Dict(); const destDict = new Dict();
destDict.set("Type", Name.get("Action")); destDict.set("Type", Name.get("Action"));
destDict.set("S", Name.get("GoTo")); destDict.set("S", Name.get("GoTo"));
destDict.set("D", "page.157"); destDict.set("D", "page.157");
let annotationDict = new Dict(); const annotationDict = new Dict();
annotationDict.set("Type", Name.get("Annot")); annotationDict.set("Type", Name.get("Annot"));
annotationDict.set("Subtype", Name.get("Link")); annotationDict.set("Subtype", Name.get("Link"));
// The /Dest must be a Name or an Array, refer to ISO 32000-1:2008 // The /Dest must be a Name or an Array, refer to ISO 32000-1:2008
// section 12.3.3, but there are PDF files where it's a dictionary. // section 12.3.3, but there are PDF files where it's a dictionary.
annotationDict.set("Dest", destDict); annotationDict.set("Dest", destDict);
let annotationRef = Ref.get(798, 0); const annotationRef = Ref.get(798, 0);
let xref = new XRefMock([{ ref: annotationRef, data: annotationDict }]); const xref = new XRefMock([
{ ref: annotationRef, data: annotationDict },
]);
AnnotationFactory.create( AnnotationFactory.create(
xref, xref,
@ -1479,7 +1481,7 @@ describe("annotation", function() {
}); });
it("should only accept comb fields when the flags are valid", function(done) { it("should only accept comb fields when the flags are valid", function(done) {
let invalidFieldFlags = [ const invalidFieldFlags = [
AnnotationFieldFlag.MULTILINE, AnnotationFieldFlag.MULTILINE,
AnnotationFieldFlag.PASSWORD, AnnotationFieldFlag.PASSWORD,
AnnotationFieldFlag.FILESELECT, AnnotationFieldFlag.FILESELECT,

45
test/unit/api_spec.js
View File

@ -50,9 +50,9 @@ import { isNodeJS } from "../../src/shared/is_node.js";
import { Metadata } from "../../src/display/metadata.js"; import { Metadata } from "../../src/display/metadata.js";
describe("api", function() { describe("api", function() {
let basicApiFileName = "basicapi.pdf"; const basicApiFileName = "basicapi.pdf";
let basicApiFileLength = 105779; // bytes const basicApiFileLength = 105779; // bytes
let basicApiGetDocumentParams = buildGetDocumentParams(basicApiFileName); const basicApiGetDocumentParams = buildGetDocumentParams(basicApiFileName);
let CanvasFactory; let CanvasFactory;
@ -102,7 +102,7 @@ describe("api", function() {
}); });
it("creates pdf doc from URL and aborts before worker initialized", function(done) { it("creates pdf doc from URL and aborts before worker initialized", function(done) {
var loadingTask = getDocument(basicApiGetDocumentParams); var loadingTask = getDocument(basicApiGetDocumentParams);
let destroyed = loadingTask.destroy(); const destroyed = loadingTask.destroy();
loadingTask.promise loadingTask.promise
.then(function(reason) { .then(function(reason) {
@ -473,7 +473,7 @@ describe("api", function() {
pending("Worker is not supported in Node.js."); pending("Worker is not supported in Node.js.");
} }
let workerSrc = PDFWorker.getWorkerSrc(); const workerSrc = PDFWorker.getWorkerSrc();
expect(typeof workerSrc).toEqual("string"); expect(typeof workerSrc).toEqual("string");
expect(workerSrc).toEqual(GlobalWorkerOptions.workerSrc); expect(workerSrc).toEqual(GlobalWorkerOptions.workerSrc);
}); });
@ -1339,8 +1339,8 @@ describe("api", function() {
it('gets viewport respecting "dontFlip" argument', function() { it('gets viewport respecting "dontFlip" argument', function() {
const scale = 1, const scale = 1,
rotation = 0; rotation = 0;
let viewport = page.getViewport({ scale, rotation }); const viewport = page.getViewport({ scale, rotation });
let dontFlipViewport = page.getViewport({ const dontFlipViewport = page.getViewport({
scale, scale,
rotation, rotation,
dontFlip: true, dontFlip: true,
@ -1511,15 +1511,15 @@ describe("api", function() {
}); });
it("gets operatorList with JPEG image (issue 4888)", function(done) { it("gets operatorList with JPEG image (issue 4888)", function(done) {
let loadingTask = getDocument(buildGetDocumentParams("cmykjpeg.pdf")); const loadingTask = getDocument(buildGetDocumentParams("cmykjpeg.pdf"));
loadingTask.promise loadingTask.promise
.then(pdfDoc => { .then(pdfDoc => {
pdfDoc.getPage(1).then(pdfPage => { pdfDoc.getPage(1).then(pdfPage => {
pdfPage.getOperatorList().then(opList => { pdfPage.getOperatorList().then(opList => {
let imgIndex = opList.fnArray.indexOf(OPS.paintImageXObject); const imgIndex = opList.fnArray.indexOf(OPS.paintImageXObject);
let imgArgs = opList.argsArray[imgIndex]; const imgArgs = opList.argsArray[imgIndex];
let { data } = pdfPage.objs.get(imgArgs[0]); const { data } = pdfPage.objs.get(imgArgs[0]);
expect(data instanceof Uint8ClampedArray).toEqual(true); expect(data instanceof Uint8ClampedArray).toEqual(true);
expect(data.length).toEqual(90000); expect(data.length).toEqual(90000);
@ -1607,7 +1607,7 @@ describe("api", function() {
}, done.fail); }, done.fail);
}); });
it("gets page stats after parsing page, with `pdfBug` set", function(done) { it("gets page stats after parsing page, with `pdfBug` set", function(done) {
let loadingTask = getDocument( const loadingTask = getDocument(
buildGetDocumentParams(basicApiFileName, { pdfBug: true }) buildGetDocumentParams(basicApiFileName, { pdfBug: true })
); );
@ -1623,7 +1623,7 @@ describe("api", function() {
expect(stats instanceof StatTimer).toEqual(true); expect(stats instanceof StatTimer).toEqual(true);
expect(stats.times.length).toEqual(1); expect(stats.times.length).toEqual(1);
let [statEntry] = stats.times; const [statEntry] = stats.times;
expect(statEntry.name).toEqual("Page Request"); expect(statEntry.name).toEqual("Page Request");
expect(statEntry.end - statEntry.start).toBeGreaterThanOrEqual(0); expect(statEntry.end - statEntry.start).toBeGreaterThanOrEqual(0);
@ -1631,7 +1631,7 @@ describe("api", function() {
}, done.fail); }, done.fail);
}); });
it("gets page stats after rendering page, with `pdfBug` set", function(done) { it("gets page stats after rendering page, with `pdfBug` set", function(done) {
let loadingTask = getDocument( const loadingTask = getDocument(
buildGetDocumentParams(basicApiFileName, { pdfBug: true }) buildGetDocumentParams(basicApiFileName, { pdfBug: true })
); );
let canvasAndCtx; let canvasAndCtx;
@ -1639,13 +1639,13 @@ describe("api", function() {
loadingTask.promise loadingTask.promise
.then(pdfDoc => { .then(pdfDoc => {
return pdfDoc.getPage(1).then(pdfPage => { return pdfDoc.getPage(1).then(pdfPage => {
let viewport = pdfPage.getViewport({ scale: 1 }); const viewport = pdfPage.getViewport({ scale: 1 });
canvasAndCtx = CanvasFactory.create( canvasAndCtx = CanvasFactory.create(
viewport.width, viewport.width,
viewport.height viewport.height
); );
let renderTask = pdfPage.render({ const renderTask = pdfPage.render({
canvasContext: canvasAndCtx.context, canvasContext: canvasAndCtx.context,
canvasFactory: CanvasFactory, canvasFactory: CanvasFactory,
viewport, viewport,
@ -1659,7 +1659,7 @@ describe("api", function() {
expect(stats instanceof StatTimer).toEqual(true); expect(stats instanceof StatTimer).toEqual(true);
expect(stats.times.length).toEqual(3); expect(stats.times.length).toEqual(3);
let [statEntryOne, statEntryTwo, statEntryThree] = stats.times; const [statEntryOne, statEntryTwo, statEntryThree] = stats.times;
expect(statEntryOne.name).toEqual("Page Request"); expect(statEntryOne.name).toEqual("Page Request");
expect(statEntryOne.end - statEntryOne.start).toBeGreaterThanOrEqual( expect(statEntryOne.end - statEntryOne.start).toBeGreaterThanOrEqual(
0 0
@ -1700,10 +1700,13 @@ describe("api", function() {
}); });
it("re-render page, using the same canvas, after cancelling rendering", function(done) { it("re-render page, using the same canvas, after cancelling rendering", function(done) {
let viewport = page.getViewport({ scale: 1 }); const viewport = page.getViewport({ scale: 1 });
let canvasAndCtx = CanvasFactory.create(viewport.width, viewport.height); const canvasAndCtx = CanvasFactory.create(
viewport.width,
viewport.height
);
let renderTask = page.render({ const renderTask = page.render({
canvasContext: canvasAndCtx.context, canvasContext: canvasAndCtx.context,
canvasFactory: CanvasFactory, canvasFactory: CanvasFactory,
viewport, viewport,
@ -1720,7 +1723,7 @@ describe("api", function() {
} }
) )
.then(() => { .then(() => {
let reRenderTask = page.render({ const reRenderTask = page.render({
canvasContext: canvasAndCtx.context, canvasContext: canvasAndCtx.context,
canvasFactory: CanvasFactory, canvasFactory: CanvasFactory,
viewport, viewport,

4
test/unit/cmap_spec.js
View File

@ -345,7 +345,7 @@ describe("cmap", function() {
}); });
} }
let cmapPromise = CMapFactory.create({ const cmapPromise = CMapFactory.create({
encoding: Name.get("Adobe-Japan1-1"), encoding: Name.get("Adobe-Japan1-1"),
fetchBuiltInCMap: tmpFetchBuiltInCMap, fetchBuiltInCMap: tmpFetchBuiltInCMap,
useCMap: null, useCMap: null,
@ -356,7 +356,7 @@ describe("cmap", function() {
}, },
function(reason) { function(reason) {
expect(reason instanceof Error).toEqual(true); expect(reason instanceof Error).toEqual(true);
let message = reason.message; const message = reason.message;
expect(message.startsWith("Unable to load CMap at: ")).toEqual(true); expect(message.startsWith("Unable to load CMap at: ")).toEqual(true);
expect(message.endsWith("/external/bcmaps/Adobe-Japan1-1")).toEqual( expect(message.endsWith("/external/bcmaps/Adobe-Japan1-1")).toEqual(
true true

188
test/unit/colorspace_spec.js
View File

@ -48,24 +48,24 @@ describe("colorspace", function() {
describe("DeviceGrayCS", function() { describe("DeviceGrayCS", function() {
it("should handle the case when cs is a Name object", function() { it("should handle the case when cs is a Name object", function() {
let cs = Name.get("DeviceGray"); const cs = Name.get("DeviceGray");
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
let testSrc = new Uint8Array([27, 125, 250, 131]); const testSrc = new Uint8Array([27, 125, 250, 131]);
let testDest = new Uint8ClampedArray(4 * 4 * 3); const testDest = new Uint8ClampedArray(4 * 4 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
27, 27, 27, 27, 27, 27,
27, 27, 27, 27, 27, 27,
125, 125, 125, 125, 125, 125,
@ -93,24 +93,24 @@ describe("colorspace", function() {
expect(testDest).toEqual(expectedDest); expect(testDest).toEqual(expectedDest);
}); });
it("should handle the case when cs is an indirect object", function() { it("should handle the case when cs is an indirect object", function() {
let cs = Ref.get(10, 0); const cs = Ref.get(10, 0);
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: cs, ref: cs,
data: Name.get("DeviceGray"), data: Name.get("DeviceGray"),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
let testSrc = new Uint8Array([27, 125, 250, 131]); const testSrc = new Uint8Array([27, 125, 250, 131]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
27, 27, 27, 27, 27, 27,
27, 27, 27, 27, 27, 27,
125, 125, 125, 125, 125, 125,
@ -134,30 +134,30 @@ describe("colorspace", function() {
describe("DeviceRgbCS", function() { describe("DeviceRgbCS", function() {
it("should handle the case when cs is a Name object", function() { it("should handle the case when cs is a Name object", function() {
let cs = Name.get("DeviceRGB"); const cs = Name.get("DeviceRGB");
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
// prettier-ignore // prettier-ignore
let testSrc = new Uint8Array([ const testSrc = new Uint8Array([
27, 125, 250, 27, 125, 250,
131, 139, 140, 131, 139, 140,
111, 25, 198, 111, 25, 198,
21, 147, 255 21, 147, 255
]); ]);
let testDest = new Uint8ClampedArray(4 * 4 * 3); const testDest = new Uint8ClampedArray(4 * 4 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
27, 125, 250, 27, 125, 250,
27, 125, 250, 27, 125, 250,
131, 139, 140, 131, 139, 140,
@ -185,30 +185,30 @@ describe("colorspace", function() {
expect(testDest).toEqual(expectedDest); expect(testDest).toEqual(expectedDest);
}); });
it("should handle the case when cs is an indirect object", function() { it("should handle the case when cs is an indirect object", function() {
let cs = Ref.get(10, 0); const cs = Ref.get(10, 0);
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: cs, ref: cs,
data: Name.get("DeviceRGB"), data: Name.get("DeviceRGB"),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
// prettier-ignore // prettier-ignore
let testSrc = new Uint8Array([ const testSrc = new Uint8Array([
27, 125, 250, 27, 125, 250,
131, 139, 140, 131, 139, 140,
111, 25, 198, 111, 25, 198,
21, 147, 255 21, 147, 255
]); ]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
27, 125, 250, 27, 125, 250,
27, 125, 250, 27, 125, 250,
131, 139, 140, 131, 139, 140,
@ -232,30 +232,30 @@ describe("colorspace", function() {
describe("DeviceCmykCS", function() { describe("DeviceCmykCS", function() {
it("should handle the case when cs is a Name object", function() { it("should handle the case when cs is a Name object", function() {
let cs = Name.get("DeviceCMYK"); const cs = Name.get("DeviceCMYK");
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
// prettier-ignore // prettier-ignore
let testSrc = new Uint8Array([ const testSrc = new Uint8Array([
27, 125, 250, 128, 27, 125, 250, 128,
131, 139, 140, 45, 131, 139, 140, 45,
111, 25, 198, 78, 111, 25, 198, 78,
21, 147, 255, 69 21, 147, 255, 69
]); ]);
let testDest = new Uint8ClampedArray(4 * 4 * 3); const testDest = new Uint8ClampedArray(4 * 4 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
135, 81, 18, 135, 81, 18,
135, 81, 18, 135, 81, 18,
114, 102, 97, 114, 102, 97,
@ -283,30 +283,30 @@ describe("colorspace", function() {
expect(testDest).toEqual(expectedDest); expect(testDest).toEqual(expectedDest);
}); });
it("should handle the case when cs is an indirect object", function() { it("should handle the case when cs is an indirect object", function() {
let cs = Ref.get(10, 0); const cs = Ref.get(10, 0);
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: cs, ref: cs,
data: Name.get("DeviceCMYK"), data: Name.get("DeviceCMYK"),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
// prettier-ignore // prettier-ignore
let testSrc = new Uint8Array([ const testSrc = new Uint8Array([
27, 125, 250, 128, 27, 125, 250, 128,
131, 139, 140, 45, 131, 139, 140, 45,
111, 25, 198, 78, 111, 25, 198, 78,
21, 147, 255, 69 21, 147, 255, 69
]); ]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
135, 81, 18, 135, 81, 18,
135, 81, 18, 135, 81, 18,
114, 102, 97, 114, 102, 97,
@ -330,29 +330,29 @@ describe("colorspace", function() {
describe("CalGrayCS", function() { describe("CalGrayCS", function() {
it("should handle the case when cs is an array", function() { it("should handle the case when cs is an array", function() {
let params = new Dict(); const params = new Dict();
params.set("WhitePoint", [1, 1, 1]); params.set("WhitePoint", [1, 1, 1]);
params.set("BlackPoint", [0, 0, 0]); params.set("BlackPoint", [0, 0, 0]);
params.set("Gamma", 2.0); params.set("Gamma", 2.0);
let cs = [Name.get("CalGray"), params]; const cs = [Name.get("CalGray"), params];
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
let testSrc = new Uint8Array([27, 125, 250, 131]); const testSrc = new Uint8Array([27, 125, 250, 131]);
let testDest = new Uint8ClampedArray(4 * 4 * 3); const testDest = new Uint8ClampedArray(4 * 4 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
25, 25, 25, 25, 25, 25,
25, 25, 25, 25, 25, 25,
143, 143, 143, 143, 143, 143,
@ -383,36 +383,36 @@ describe("colorspace", function() {
describe("CalRGBCS", function() { describe("CalRGBCS", function() {
it("should handle the case when cs is an array", function() { it("should handle the case when cs is an array", function() {
let params = new Dict(); const params = new Dict();
params.set("WhitePoint", [1, 1, 1]); params.set("WhitePoint", [1, 1, 1]);
params.set("BlackPoint", [0, 0, 0]); params.set("BlackPoint", [0, 0, 0]);
params.set("Gamma", [1, 1, 1]); params.set("Gamma", [1, 1, 1]);
params.set("Matrix", [1, 0, 0, 0, 1, 0, 0, 0, 1]); params.set("Matrix", [1, 0, 0, 0, 1, 0, 0, 0, 1]);
let cs = [Name.get("CalRGB"), params]; const cs = [Name.get("CalRGB"), params];
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
// prettier-ignore // prettier-ignore
let testSrc = new Uint8Array([ const testSrc = new Uint8Array([
27, 125, 250, 27, 125, 250,
131, 139, 140, 131, 139, 140,
111, 25, 198, 111, 25, 198,
21, 147, 255 21, 147, 255
]); ]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
0, 238, 255, 0, 238, 255,
0, 238, 255, 0, 238, 255,
185, 196, 195, 185, 196, 195,
@ -436,35 +436,35 @@ describe("colorspace", function() {
describe("LabCS", function() { describe("LabCS", function() {
it("should handle the case when cs is an array", function() { it("should handle the case when cs is an array", function() {
let params = new Dict(); const params = new Dict();
params.set("WhitePoint", [1, 1, 1]); params.set("WhitePoint", [1, 1, 1]);
params.set("BlackPoint", [0, 0, 0]); params.set("BlackPoint", [0, 0, 0]);
params.set("Range", [-100, 100, -100, 100]); params.set("Range", [-100, 100, -100, 100]);
let cs = [Name.get("Lab"), params]; const cs = [Name.get("Lab"), params];
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
// prettier-ignore // prettier-ignore
let testSrc = new Uint8Array([ const testSrc = new Uint8Array([
27, 25, 50, 27, 25, 50,
31, 19, 40, 31, 19, 40,
11, 25, 98, 11, 25, 98,
21, 47, 55 21, 47, 55
]); ]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
0, 49, 101, 0, 49, 101,
0, 49, 101, 0, 49, 101,
0, 53, 117, 0, 53, 117,
@ -490,29 +490,29 @@ describe("colorspace", function() {
describe("IndexedCS", function() { describe("IndexedCS", function() {
it("should handle the case when cs is an array", function() { it("should handle the case when cs is an array", function() {
// prettier-ignore // prettier-ignore
let lookup = new Uint8Array([ const lookup = new Uint8Array([
23, 155, 35, 23, 155, 35,
147, 69, 93, 147, 69, 93,
255, 109, 70 255, 109, 70
]); ]);
let cs = [Name.get("Indexed"), Name.get("DeviceRGB"), 2, lookup]; const cs = [Name.get("Indexed"), Name.get("DeviceRGB"), 2, lookup];
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: Ref.get(10, 0), ref: Ref.get(10, 0),
data: new Dict(), data: new Dict(),
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
let testSrc = new Uint8Array([2, 2, 0, 1]); const testSrc = new Uint8Array([2, 2, 0, 1]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
255, 109, 70, 255, 109, 70,
255, 109, 70, 255, 109, 70,
255, 109, 70, 255, 109, 70,
@ -536,7 +536,7 @@ describe("colorspace", function() {
describe("AlternateCS", function() { describe("AlternateCS", function() {
it("should handle the case when cs is an array", function() { it("should handle the case when cs is an array", function() {
let fnDict = new Dict(); const fnDict = new Dict();
fnDict.set("FunctionType", 4); fnDict.set("FunctionType", 4);
fnDict.set("Domain", [0.0, 1.0]); fnDict.set("Domain", [0.0, 1.0]);
fnDict.set("Range", [0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0]); fnDict.set("Range", [0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0]);
@ -550,31 +550,31 @@ describe("colorspace", function() {
); );
fn = new Stream(fn.bytes, 0, 58, fnDict); fn = new Stream(fn.bytes, 0, 58, fnDict);
let fnRef = Ref.get(10, 0); const fnRef = Ref.get(10, 0);
let cs = [ const cs = [
Name.get("Separation"), Name.get("Separation"),
Name.get("LogoGreen"), Name.get("LogoGreen"),
Name.get("DeviceCMYK"), Name.get("DeviceCMYK"),
fnRef, fnRef,
]; ];
let xref = new XRefMock([ const xref = new XRefMock([
{ {
ref: fnRef, ref: fnRef,
data: fn, data: fn,
}, },
]); ]);
let res = new Dict(); const res = new Dict();
let pdfFunctionFactory = new PDFFunctionFactory({ const pdfFunctionFactory = new PDFFunctionFactory({
xref, xref,
}); });
let colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory); const colorSpace = ColorSpace.parse(cs, xref, res, pdfFunctionFactory);
let testSrc = new Uint8Array([27, 25, 50, 31]); const testSrc = new Uint8Array([27, 25, 50, 31]);
let testDest = new Uint8ClampedArray(3 * 3 * 3); const testDest = new Uint8ClampedArray(3 * 3 * 3);
// prettier-ignore // prettier-ignore
let expectedDest = new Uint8ClampedArray([ const expectedDest = new Uint8ClampedArray([
226, 242, 241, 226, 242, 241,
226, 242, 241, 226, 242, 241,
229, 244, 242, 229, 244, 242,

6
test/unit/custom_spec.js
View File

@ -19,7 +19,7 @@ import { getDocument } from "../../src/display/api.js";
import { isNodeJS } from "../../src/shared/is_node.js"; import { isNodeJS } from "../../src/shared/is_node.js";
function getTopLeftPixel(canvasContext) { function getTopLeftPixel(canvasContext) {
let imgData = canvasContext.getImageData(0, 0, 1, 1); const imgData = canvasContext.getImageData(0, 0, 1, 1);
return { return {
r: imgData.data[0], r: imgData.data[0],
g: imgData.data[1], g: imgData.data[1],
@ -29,7 +29,9 @@ function getTopLeftPixel(canvasContext) {
} }
describe("custom canvas rendering", function() { describe("custom canvas rendering", function() {
let transparentGetDocumentParams = buildGetDocumentParams("transparent.pdf"); const transparentGetDocumentParams = buildGetDocumentParams(
"transparent.pdf"
);
let CanvasFactory; let CanvasFactory;
let loadingTask; let loadingTask;

2
test/unit/fetch_stream_spec.js
View File

@ -86,7 +86,7 @@ describe("fetch_stream", function() {
); );
const rangeReader2 = stream.getRangeReader(pdfLength - tailSize, pdfLength); const rangeReader2 = stream.getRangeReader(pdfLength - tailSize, pdfLength);
let result1 = { value: 0 }, const result1 = { value: 0 },
result2 = { value: 0 }; result2 = { value: 0 };
const read = function(reader, lenResult) { const read = function(reader, lenResult) {
return reader.read().then(function(result) { return reader.read().then(function(result) {

68
test/unit/message_handler_spec.js
View File

@ -31,9 +31,9 @@ describe("message_handler", function() {
describe("sendWithStream", function() { describe("sendWithStream", function() {
it("should return a ReadableStream", function() { it("should return a ReadableStream", function() {
let port = new LoopbackPort(); const port = new LoopbackPort();
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let readable = messageHandler1.sendWithStream("fakeHandler"); const readable = messageHandler1.sendWithStream("fakeHandler");
// Check if readable is an instance of ReadableStream. // Check if readable is an instance of ReadableStream.
expect(typeof readable).toEqual("object"); expect(typeof readable).toEqual("object");
expect(typeof readable.getReader).toEqual("function"); expect(typeof readable.getReader).toEqual("function");
@ -41,9 +41,9 @@ describe("message_handler", function() {
it("should read using a reader", function(done) { it("should read using a reader", function(done) {
let log = ""; let log = "";
let port = new LoopbackPort(); const port = new LoopbackPort();
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let messageHandler2 = new MessageHandler("worker", "main", port); const messageHandler2 = new MessageHandler("worker", "main", port);
messageHandler2.on("fakeHandler", (data, sink) => { messageHandler2.on("fakeHandler", (data, sink) => {
sink.onPull = function() { sink.onPull = function() {
log += "p"; log += "p";
@ -61,7 +61,7 @@ describe("message_handler", function() {
}); });
return sleep(5); return sleep(5);
}); });
let readable = messageHandler1.sendWithStream( const readable = messageHandler1.sendWithStream(
"fakeHandler", "fakeHandler",
{}, {},
{ {
@ -71,7 +71,7 @@ describe("message_handler", function() {
}, },
} }
); );
let reader = readable.getReader(); const reader = readable.getReader();
sleep(10) sleep(10)
.then(() => { .then(() => {
expect(log).toEqual(""); expect(log).toEqual("");
@ -95,8 +95,8 @@ describe("message_handler", function() {
it("should not read any data when cancelled", function(done) { it("should not read any data when cancelled", function(done) {
let log = ""; let log = "";
let port = new LoopbackPort(); const port = new LoopbackPort();
let messageHandler2 = new MessageHandler("worker", "main", port); const messageHandler2 = new MessageHandler("worker", "main", port);
messageHandler2.on("fakeHandler", (data, sink) => { messageHandler2.on("fakeHandler", (data, sink) => {
sink.onPull = function() { sink.onPull = function() {
log += "p"; log += "p";
@ -126,8 +126,8 @@ describe("message_handler", function() {
} }
); );
}); });
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let readable = messageHandler1.sendWithStream( const readable = messageHandler1.sendWithStream(
"fakeHandler", "fakeHandler",
{}, {},
{ {
@ -138,7 +138,7 @@ describe("message_handler", function() {
} }
); );
let reader = readable.getReader(); const reader = readable.getReader();
sleep(10) sleep(10)
.then(() => { .then(() => {
expect(log).toEqual("01"); expect(log).toEqual("01");
@ -161,8 +161,8 @@ describe("message_handler", function() {
it("should not read when errored", function(done) { it("should not read when errored", function(done) {
let log = ""; let log = "";
let port = new LoopbackPort(); const port = new LoopbackPort();
let messageHandler2 = new MessageHandler("worker", "main", port); const messageHandler2 = new MessageHandler("worker", "main", port);
messageHandler2.on("fakeHandler", (data, sink) => { messageHandler2.on("fakeHandler", (data, sink) => {
sink.onPull = function() { sink.onPull = function() {
log += "p"; log += "p";
@ -182,8 +182,8 @@ describe("message_handler", function() {
sink.error(new Error("should not read when errored")); sink.error(new Error("should not read when errored"));
}); });
}); });
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let readable = messageHandler1.sendWithStream( const readable = messageHandler1.sendWithStream(
"fakeHandler", "fakeHandler",
{}, {},
{ {
@ -194,7 +194,7 @@ describe("message_handler", function() {
} }
); );
let reader = readable.getReader(); const reader = readable.getReader();
sleep(10) sleep(10)
.then(() => { .then(() => {
@ -216,8 +216,8 @@ describe("message_handler", function() {
it("should read data with blocking promise", function(done) { it("should read data with blocking promise", function(done) {
let log = ""; let log = "";
let port = new LoopbackPort(); const port = new LoopbackPort();
let messageHandler2 = new MessageHandler("worker", "main", port); const messageHandler2 = new MessageHandler("worker", "main", port);
messageHandler2.on("fakeHandler", (data, sink) => { messageHandler2.on("fakeHandler", (data, sink) => {
sink.onPull = function() { sink.onPull = function() {
log += "p"; log += "p";
@ -242,8 +242,8 @@ describe("message_handler", function() {
}); });
}); });
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let readable = messageHandler1.sendWithStream( const readable = messageHandler1.sendWithStream(
"fakeHandler", "fakeHandler",
{}, {},
{ {
@ -254,7 +254,7 @@ describe("message_handler", function() {
} }
); );
let reader = readable.getReader(); const reader = readable.getReader();
// Sleep for 10ms, so that read() is not unblocking the ready promise. // Sleep for 10ms, so that read() is not unblocking the ready promise.
// Chain all read() to stream in sequence. // Chain all read() to stream in sequence.
sleep(10) sleep(10)
@ -292,8 +292,8 @@ describe("message_handler", function() {
" into stream", " into stream",
function(done) { function(done) {
let log = ""; let log = "";
let port = new LoopbackPort(); const port = new LoopbackPort();
let messageHandler2 = new MessageHandler("worker", "main", port); const messageHandler2 = new MessageHandler("worker", "main", port);
messageHandler2.on("fakeHandler", (data, sink) => { messageHandler2.on("fakeHandler", (data, sink) => {
sink.onPull = function() { sink.onPull = function() {
log += "p"; log += "p";
@ -319,8 +319,8 @@ describe("message_handler", function() {
return sleep(10); return sleep(10);
}); });
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let readable = messageHandler1.sendWithStream( const readable = messageHandler1.sendWithStream(
"fakeHandler", "fakeHandler",
{}, {},
{ {
@ -331,7 +331,7 @@ describe("message_handler", function() {
} }
); );
let reader = readable.getReader(); const reader = readable.getReader();
sleep(10) sleep(10)
.then(() => { .then(() => {
@ -366,9 +366,9 @@ describe("message_handler", function() {
it("should ignore any pull after close is called", function(done) { it("should ignore any pull after close is called", function(done) {
let log = ""; let log = "";
let port = new LoopbackPort(); const port = new LoopbackPort();
let capability = createPromiseCapability(); const capability = createPromiseCapability();
let messageHandler2 = new MessageHandler("worker", "main", port); const messageHandler2 = new MessageHandler("worker", "main", port);
messageHandler2.on("fakeHandler", (data, sink) => { messageHandler2.on("fakeHandler", (data, sink) => {
sink.onPull = function() { sink.onPull = function() {
log += "p"; log += "p";
@ -386,8 +386,8 @@ describe("message_handler", function() {
}); });
}); });
let messageHandler1 = new MessageHandler("main", "worker", port); const messageHandler1 = new MessageHandler("main", "worker", port);
let readable = messageHandler1.sendWithStream( const readable = messageHandler1.sendWithStream(
"fakeHandler", "fakeHandler",
{}, {},
{ {
@ -398,7 +398,7 @@ describe("message_handler", function() {
} }
); );
let reader = readable.getReader(); const reader = readable.getReader();
sleep(10) sleep(10)
.then(() => { .then(() => {

78
test/unit/node_stream_spec.js
View File

@ -21,26 +21,26 @@ import { PDFNodeStream } from "../../src/display/node_stream.js";
// Make sure that we only running this script is Node.js environments. // Make sure that we only running this script is Node.js environments.
assert(isNodeJS); assert(isNodeJS);
let path = __non_webpack_require__("path"); const path = __non_webpack_require__("path");
let url = __non_webpack_require__("url"); const url = __non_webpack_require__("url");
let http = __non_webpack_require__("http"); const http = __non_webpack_require__("http");
let fs = __non_webpack_require__("fs"); const fs = __non_webpack_require__("fs");
describe("node_stream", function() { describe("node_stream", function() {
let server = null; let server = null;
let port = null; let port = null;
let pdf = url.parse( const pdf = url.parse(
encodeURI( encodeURI(
"file://" + path.join(process.cwd(), "./test/pdfs/tracemonkey.pdf") "file://" + path.join(process.cwd(), "./test/pdfs/tracemonkey.pdf")
) )
).href; ).href;
let pdfLength = 1016315; const pdfLength = 1016315;
beforeAll(done => { beforeAll(done => {
// Create http server to serve pdf data for tests. // Create http server to serve pdf data for tests.
server = http server = http
.createServer((request, response) => { .createServer((request, response) => {
let filePath = process.cwd() + "/test/pdfs" + request.url; const filePath = process.cwd() + "/test/pdfs" + request.url;
fs.lstat(filePath, (error, stat) => { fs.lstat(filePath, (error, stat) => {
if (error) { if (error) {
response.writeHead(404); response.writeHead(404);
@ -48,8 +48,8 @@ describe("node_stream", function() {
return; return;
} }
if (!request.headers["range"]) { if (!request.headers["range"]) {
let contentLength = stat.size; const contentLength = stat.size;
let stream = fs.createReadStream(filePath); const stream = fs.createReadStream(filePath);
response.writeHead(200, { response.writeHead(200, {
"Content-Type": "application/pdf", "Content-Type": "application/pdf",
"Content-Length": contentLength, "Content-Length": contentLength,
@ -57,13 +57,13 @@ describe("node_stream", function() {
}); });
stream.pipe(response); stream.pipe(response);
} else { } else {
let [start, end] = request.headers["range"] const [start, end] = request.headers["range"]
.split("=")[1] .split("=")[1]
.split("-") .split("-")
.map(x => { .map(x => {
return Number(x); return Number(x);
}); });
let stream = fs.createReadStream(filePath, { start, end }); const stream = fs.createReadStream(filePath, { start, end });
response.writeHead(206, { response.writeHead(206, {
"Content-Type": "application/pdf", "Content-Type": "application/pdf",
}); });
@ -83,38 +83,38 @@ describe("node_stream", function() {
}); });
it("read both http(s) and filesystem pdf files", function(done) { it("read both http(s) and filesystem pdf files", function(done) {
let stream1 = new PDFNodeStream({ const stream1 = new PDFNodeStream({
url: `http://127.0.0.1:${port}/tracemonkey.pdf`, url: `http://127.0.0.1:${port}/tracemonkey.pdf`,
rangeChunkSize: 65536, rangeChunkSize: 65536,
disableStream: true, disableStream: true,
disableRange: true, disableRange: true,
}); });
let stream2 = new PDFNodeStream({ const stream2 = new PDFNodeStream({
url: pdf, url: pdf,
rangeChunkSize: 65536, rangeChunkSize: 65536,
disableStream: true, disableStream: true,
disableRange: true, disableRange: true,
}); });
let fullReader1 = stream1.getFullReader(); const fullReader1 = stream1.getFullReader();
let fullReader2 = stream2.getFullReader(); const fullReader2 = stream2.getFullReader();
let isStreamingSupported1, isRangeSupported1; let isStreamingSupported1, isRangeSupported1;
let promise1 = fullReader1.headersReady.then(() => { const promise1 = fullReader1.headersReady.then(() => {
isStreamingSupported1 = fullReader1.isStreamingSupported; isStreamingSupported1 = fullReader1.isStreamingSupported;
isRangeSupported1 = fullReader1.isRangeSupported; isRangeSupported1 = fullReader1.isRangeSupported;
}); });
let isStreamingSupported2, isRangeSupported2; let isStreamingSupported2, isRangeSupported2;
let promise2 = fullReader2.headersReady.then(() => { const promise2 = fullReader2.headersReady.then(() => {
isStreamingSupported2 = fullReader2.isStreamingSupported; isStreamingSupported2 = fullReader2.isStreamingSupported;
isRangeSupported2 = fullReader2.isRangeSupported; isRangeSupported2 = fullReader2.isRangeSupported;
}); });
let len1 = 0, let len1 = 0,
len2 = 0; len2 = 0;
let read1 = function() { const read1 = function() {
return fullReader1.read().then(function(result) { return fullReader1.read().then(function(result) {
if (result.done) { if (result.done) {
return undefined; return undefined;
@ -123,7 +123,7 @@ describe("node_stream", function() {
return read1(); return read1();
}); });
}; };
let read2 = function() { const read2 = function() {
return fullReader2.read().then(function(result) { return fullReader2.read().then(function(result) {
if (result.done) { if (result.done) {
return undefined; return undefined;
@ -133,7 +133,7 @@ describe("node_stream", function() {
}); });
}; };
let readPromise = Promise.all([read1(), read2(), promise1, promise2]); const readPromise = Promise.all([read1(), read2(), promise1, promise2]);
readPromise readPromise
.then(result => { .then(result => {
expect(isStreamingSupported1).toEqual(false); expect(isStreamingSupported1).toEqual(false);
@ -150,15 +150,15 @@ describe("node_stream", function() {
}); });
it("read custom ranges for both http(s) and filesystem urls", function(done) { it("read custom ranges for both http(s) and filesystem urls", function(done) {
let rangeSize = 32768; const rangeSize = 32768;
let stream1 = new PDFNodeStream({ const stream1 = new PDFNodeStream({
url: `http://127.0.0.1:${port}/tracemonkey.pdf`, url: `http://127.0.0.1:${port}/tracemonkey.pdf`,
length: pdfLength, length: pdfLength,
rangeChunkSize: rangeSize, rangeChunkSize: rangeSize,
disableStream: true, disableStream: true,
disableRange: false, disableRange: false,
}); });
let stream2 = new PDFNodeStream({ const stream2 = new PDFNodeStream({
url: pdf, url: pdf,
length: pdfLength, length: pdfLength,
rangeChunkSize: rangeSize, rangeChunkSize: rangeSize,
@ -166,13 +166,13 @@ describe("node_stream", function() {
disableRange: false, disableRange: false,
}); });
let fullReader1 = stream1.getFullReader(); const fullReader1 = stream1.getFullReader();
let fullReader2 = stream2.getFullReader(); const fullReader2 = stream2.getFullReader();
let isStreamingSupported1, isRangeSupported1, fullReaderCancelled1; let isStreamingSupported1, isRangeSupported1, fullReaderCancelled1;
let isStreamingSupported2, isRangeSupported2, fullReaderCancelled2; let isStreamingSupported2, isRangeSupported2, fullReaderCancelled2;
let promise1 = fullReader1.headersReady.then(function() { const promise1 = fullReader1.headersReady.then(function() {
isStreamingSupported1 = fullReader1.isStreamingSupported; isStreamingSupported1 = fullReader1.isStreamingSupported;
isRangeSupported1 = fullReader1.isRangeSupported; isRangeSupported1 = fullReader1.isRangeSupported;
// we shall be able to close the full reader without issues // we shall be able to close the full reader without issues
@ -180,7 +180,7 @@ describe("node_stream", function() {
fullReaderCancelled1 = true; fullReaderCancelled1 = true;
}); });
let promise2 = fullReader2.headersReady.then(function() { const promise2 = fullReader2.headersReady.then(function() {
isStreamingSupported2 = fullReader2.isStreamingSupported; isStreamingSupported2 = fullReader2.isStreamingSupported;
isRangeSupported2 = fullReader2.isRangeSupported; isRangeSupported2 = fullReader2.isRangeSupported;
fullReader2.cancel(new AbortException("Don't need fullReader2.")); fullReader2.cancel(new AbortException("Don't need fullReader2."));
@ -188,26 +188,32 @@ describe("node_stream", function() {
}); });
// Skipping fullReader results, requesting something from the PDF end. // Skipping fullReader results, requesting something from the PDF end.
let tailSize = pdfLength % rangeSize || rangeSize; const tailSize = pdfLength % rangeSize || rangeSize;
let range11Reader = stream1.getRangeReader( const range11Reader = stream1.getRangeReader(
pdfLength - tailSize - rangeSize, pdfLength - tailSize - rangeSize,
pdfLength - tailSize pdfLength - tailSize
); );
let range12Reader = stream1.getRangeReader(pdfLength - tailSize, pdfLength); const range12Reader = stream1.getRangeReader(
pdfLength - tailSize,
pdfLength
);
let range21Reader = stream2.getRangeReader( const range21Reader = stream2.getRangeReader(
pdfLength - tailSize - rangeSize, pdfLength - tailSize - rangeSize,
pdfLength - tailSize pdfLength - tailSize
); );
let range22Reader = stream2.getRangeReader(pdfLength - tailSize, pdfLength); const range22Reader = stream2.getRangeReader(
pdfLength - tailSize,
pdfLength
);
let result11 = { value: 0 }, const result11 = { value: 0 },
result12 = { value: 0 }; result12 = { value: 0 };
let result21 = { value: 0 }, const result21 = { value: 0 },
result22 = { value: 0 }; result22 = { value: 0 };
let read = function(reader, lenResult) { const read = function(reader, lenResult) {
return reader.read().then(function(result) { return reader.read().then(function(result) {
if (result.done) { if (result.done) {
return undefined; return undefined;
@ -217,7 +223,7 @@ describe("node_stream", function() {
}); });
}; };
let readPromises = Promise.all([ const readPromises = Promise.all([
read(range11Reader, result11), read(range11Reader, result11),
read(range12Reader, result12), read(range12Reader, result12),
read(range21Reader, result21), read(range21Reader, result21),

14
test/unit/pdf_history_spec.js
View File

@ -29,7 +29,7 @@ describe("pdf_history", function() {
false false
); );
let destArrayString = JSON.stringify([ const destArrayString = JSON.stringify([
{ num: 3757, gen: 0 }, { num: 3757, gen: 0 },
{ name: "XYZ" }, { name: "XYZ" },
92.918, 92.918,
@ -51,11 +51,11 @@ describe("pdf_history", function() {
}); });
describe("isDestArraysEqual", function() { describe("isDestArraysEqual", function() {
let firstDest = [{ num: 1, gen: 0 }, { name: "XYZ" }, 0, 375, null]; const firstDest = [{ num: 1, gen: 0 }, { name: "XYZ" }, 0, 375, null];
let secondDest = [{ num: 5, gen: 0 }, { name: "XYZ" }, 0, 375, null]; const secondDest = [{ num: 5, gen: 0 }, { name: "XYZ" }, 0, 375, null];
let thirdDest = [{ num: 1, gen: 0 }, { name: "XYZ" }, 750, 0, null]; const thirdDest = [{ num: 1, gen: 0 }, { name: "XYZ" }, 750, 0, null];
let fourthDest = [{ num: 1, gen: 0 }, { name: "XYZ" }, 0, 375, 1.0]; const fourthDest = [{ num: 1, gen: 0 }, { name: "XYZ" }, 0, 375, 1.0];
let fifthDest = [{ gen: 0, num: 1 }, { name: "XYZ" }, 0, 375, null]; const fifthDest = [{ gen: 0, num: 1 }, { name: "XYZ" }, 0, 375, null];
it("should reject non-equal destination arrays", function() { it("should reject non-equal destination arrays", function() {
expect(isDestArraysEqual(firstDest, undefined)).toEqual(false); expect(isDestArraysEqual(firstDest, undefined)).toEqual(false);
@ -70,7 +70,7 @@ describe("pdf_history", function() {
expect(isDestArraysEqual(firstDest, firstDest)).toEqual(true); expect(isDestArraysEqual(firstDest, firstDest)).toEqual(true);
expect(isDestArraysEqual(firstDest, fifthDest)).toEqual(true); expect(isDestArraysEqual(firstDest, fifthDest)).toEqual(true);
let firstDestCopy = firstDest.slice(); const firstDestCopy = firstDest.slice();
expect(firstDest).not.toBe(firstDestCopy); expect(firstDest).not.toBe(firstDestCopy);
expect(isDestArraysEqual(firstDest, firstDestCopy)).toEqual(true); expect(isDestArraysEqual(firstDest, firstDestCopy)).toEqual(true);

2
test/unit/stream_spec.js
View File

@ -69,7 +69,7 @@ describe("stream", function() {
); );
predictor.reset(); predictor.reset();
let clampedResult = predictor.getBytes(6, /* forceClamped = */ true); const clampedResult = predictor.getBytes(6, /* forceClamped = */ true);
expect(clampedResult).toEqual( expect(clampedResult).toEqual(
new Uint8ClampedArray([100, 3, 101, 2, 102, 1]) new Uint8ClampedArray([100, 3, 101, 2, 102, 1])
); );

8
test/unit/test_utils.js
View File

@ -50,13 +50,13 @@ const TEST_PDFS_PATH = {
}; };
function buildGetDocumentParams(filename, options) { function buildGetDocumentParams(filename, options) {
let params = Object.create(null); const params = Object.create(null);
if (isNodeJS) { if (isNodeJS) {
params.url = TEST_PDFS_PATH.node + filename; params.url = TEST_PDFS_PATH.node + filename;
} else { } else {
params.url = new URL(TEST_PDFS_PATH.dom + filename, window.location).href; params.url = new URL(TEST_PDFS_PATH.dom + filename, window.location).href;
} }
for (let option in options) { for (const option in options) {
params[option] = options[option]; params[option] = options[option];
} }
return params; return params;
@ -137,8 +137,8 @@ class XRefMock {
constructor(array) { constructor(array) {
this._map = Object.create(null); this._map = Object.create(null);
for (let key in array) { for (const key in array) {
let obj = array[key]; const obj = array[key];
this._map[obj.ref.toString()] = obj.data; this._map[obj.ref.toString()] = obj.data;
} }
} }

18
test/unit/ui_utils_spec.js
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@ -449,7 +449,7 @@ describe("ui_utils", function() {
}); });
it("should reject invalid parameters", function(done) { it("should reject invalid parameters", function(done) {
let invalidTarget = waitOnEventOrTimeout({ const invalidTarget = waitOnEventOrTimeout({
target: "window", target: "window",
name: "DOMContentLoaded", name: "DOMContentLoaded",
}).then( }).then(
@ -461,7 +461,7 @@ describe("ui_utils", function() {
} }
); );
let invalidName = waitOnEventOrTimeout({ const invalidName = waitOnEventOrTimeout({
target: eventBus, target: eventBus,
name: "", name: "",
}).then( }).then(
@ -473,7 +473,7 @@ describe("ui_utils", function() {
} }
); );
let invalidDelay = waitOnEventOrTimeout({ const invalidDelay = waitOnEventOrTimeout({
target: eventBus, target: eventBus,
name: "pagerendered", name: "pagerendered",
delay: -1000, delay: -1000,
@ -496,9 +496,9 @@ describe("ui_utils", function() {
if (isNodeJS) { if (isNodeJS) {
pending("Document in not supported in Node.js."); pending("Document in not supported in Node.js.");
} }
let button = document.createElement("button"); const button = document.createElement("button");
let buttonClicked = waitOnEventOrTimeout({ const buttonClicked = waitOnEventOrTimeout({
target: button, target: button,
name: "click", name: "click",
delay: 10000, delay: 10000,
@ -516,9 +516,9 @@ describe("ui_utils", function() {
if (isNodeJS) { if (isNodeJS) {
pending("Document in not supported in Node.js."); pending("Document in not supported in Node.js.");
} }
let button = document.createElement("button"); const button = document.createElement("button");
let buttonClicked = waitOnEventOrTimeout({ const buttonClicked = waitOnEventOrTimeout({
target: button, target: button,
name: "click", name: "click",
delay: 10, delay: 10,
@ -532,7 +532,7 @@ describe("ui_utils", function() {
}); });
it("should resolve on event, using the EventBus", function(done) { it("should resolve on event, using the EventBus", function(done) {
let pageRendered = waitOnEventOrTimeout({ const pageRendered = waitOnEventOrTimeout({
target: eventBus, target: eventBus,
name: "pagerendered", name: "pagerendered",
delay: 10000, delay: 10000,
@ -547,7 +547,7 @@ describe("ui_utils", function() {
}); });
it("should resolve on timeout, using the EventBus", function(done) { it("should resolve on timeout, using the EventBus", function(done) {
let pageRendered = waitOnEventOrTimeout({ const pageRendered = waitOnEventOrTimeout({
target: eventBus, target: eventBus,
name: "pagerendered", name: "pagerendered",
delay: 10, delay: 10,

24
test/unit/util_spec.js
View File

@ -48,14 +48,14 @@ describe("util", function() {
const length = 10000; // Larger than MAX_ARGUMENT_COUNT = 8192. const length = 10000; // Larger than MAX_ARGUMENT_COUNT = 8192.
// Create an array with `length` 'a' character codes. // Create an array with `length` 'a' character codes.
let bytes = new Uint8Array(length); const bytes = new Uint8Array(length);
for (let i = 0; i < length; i++) { for (let i = 0; i < length; i++) {
bytes[i] = "a".charCodeAt(0); bytes[i] = "a".charCodeAt(0);
} }
// Create a string with `length` 'a' characters. We need an array of size // Create a string with `length` 'a' characters. We need an array of size
// `length + 1` since `join` puts the argument between the array elements. // `length + 1` since `join` puts the argument between the array elements.
let string = Array(length + 1).join("a"); const string = Array(length + 1).join("a");
expect(bytesToString(bytes)).toEqual(string); expect(bytesToString(bytes)).toEqual(string);
}); });
@ -184,55 +184,55 @@ describe("util", function() {
describe("stringToPDFString", function() { describe("stringToPDFString", function() {
it("handles ISO Latin 1 strings", function() { it("handles ISO Latin 1 strings", function() {
let str = "\x8Dstring\x8E"; const str = "\x8Dstring\x8E";
expect(stringToPDFString(str)).toEqual("\u201Cstring\u201D"); expect(stringToPDFString(str)).toEqual("\u201Cstring\u201D");
}); });
it("handles UTF-16 big-endian strings", function() { it("handles UTF-16 big-endian strings", function() {
let str = "\xFE\xFF\x00\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67"; const str = "\xFE\xFF\x00\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67";
expect(stringToPDFString(str)).toEqual("string"); expect(stringToPDFString(str)).toEqual("string");
}); });
it("handles UTF-16 little-endian strings", function() { it("handles UTF-16 little-endian strings", function() {
let str = "\xFF\xFE\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67\x00"; const str = "\xFF\xFE\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67\x00";
expect(stringToPDFString(str)).toEqual("string"); expect(stringToPDFString(str)).toEqual("string");
}); });
it("handles empty strings", function() { it("handles empty strings", function() {
// ISO Latin 1 // ISO Latin 1
let str1 = ""; const str1 = "";
expect(stringToPDFString(str1)).toEqual(""); expect(stringToPDFString(str1)).toEqual("");
// UTF-16BE // UTF-16BE
let str2 = "\xFE\xFF"; const str2 = "\xFE\xFF";
expect(stringToPDFString(str2)).toEqual(""); expect(stringToPDFString(str2)).toEqual("");
// UTF-16LE // UTF-16LE
let str3 = "\xFF\xFE"; const str3 = "\xFF\xFE";
expect(stringToPDFString(str3)).toEqual(""); expect(stringToPDFString(str3)).toEqual("");
}); });
}); });
describe("removeNullCharacters", function() { describe("removeNullCharacters", function() {
it("should not modify string without null characters", function() { it("should not modify string without null characters", function() {
let str = "string without null chars"; const str = "string without null chars";
expect(removeNullCharacters(str)).toEqual("string without null chars"); expect(removeNullCharacters(str)).toEqual("string without null chars");
}); });
it("should modify string with null characters", function() { it("should modify string with null characters", function() {
let str = "string\x00With\x00Null\x00Chars"; const str = "string\x00With\x00Null\x00Chars";
expect(removeNullCharacters(str)).toEqual("stringWithNullChars"); expect(removeNullCharacters(str)).toEqual("stringWithNullChars");
}); });
}); });
describe("ReadableStream", function() { describe("ReadableStream", function() {
it("should return an Object", function() { it("should return an Object", function() {
let readable = new ReadableStream(); const readable = new ReadableStream();
expect(typeof readable).toEqual("object"); expect(typeof readable).toEqual("object");
}); });
it("should have property getReader", function() { it("should have property getReader", function() {
let readable = new ReadableStream(); const readable = new ReadableStream();
expect(typeof readable.getReader).toEqual("function"); expect(typeof readable.getReader).toEqual("function");
}); });
}); });

1
web/.eslintrc
View File

@ -9,6 +9,5 @@
// ECMAScript 6 // ECMAScript 6
"no-var": "error", "no-var": "error",
"prefer-const": "error",
}, },
} }