Small corrections to pdf.js.
Also fix some lint errors.
This commit is contained in:
Kalervo Kujala
parent
2f1a018e72
commit
0f4b243752
72
pdf.js
72
pdf.js
@ -1,4 +1,4 @@
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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'use strict';
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@ -18,6 +18,16 @@ function warn(msg) {
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log('Warning: ' + msg);
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}
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function backtrace() {
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var stackStr;
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try {
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throw new Error();
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} catch (e) {
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stackStr = e.stack;
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}
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return stackStr.split('\n').slice(1).join('\n');
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}
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function error(msg) {
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log(backtrace());
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throw new Error(msg);
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@ -44,23 +54,13 @@ function assertWellFormed(cond, msg) {
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malformed(msg);
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}
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function backtrace() {
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var stackStr;
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try {
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throw new Error();
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} catch (e) {
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stackStr = e.stack;
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}
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return stackStr.split('\n').slice(1).join('\n');
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}
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function shadow(obj, prop, value) {
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try {
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Object.defineProperty(obj, prop, { value: value,
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enumerable: true,
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configurable: true,
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writable: false });
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} catch(e) {
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} catch (e) {
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obj.__defineGetter__(prop, function() {
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return value;
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});
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@ -185,7 +185,7 @@ var DecodeStream = (function() {
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var buffer2 = new Uint8Array(size);
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for (var i = 0; i < current; ++i)
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buffer2[i] = buffer[i];
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return this.buffer = buffer2;
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return (this.buffer = buffer2);
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},
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getByte: function decodestream_getByte() {
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var pos = this.pos;
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@ -197,11 +197,11 @@ var DecodeStream = (function() {
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return this.buffer[this.pos++];
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},
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getBytes: function decodestream_getBytes(length) {
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var pos = this.pos;
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var end, pos = this.pos;
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if (length) {
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this.ensureBuffer(pos + length);
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var end = pos + length;
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end = pos + length;
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while (!this.eof && this.bufferLength < end)
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this.readBlock();
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@ -213,7 +213,7 @@ var DecodeStream = (function() {
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while (!this.eof)
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this.readBlock();
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var end = this.bufferLength;
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end = this.bufferLength;
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// checking if bufferLength is still 0 then
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// the buffer has to be initialized
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@ -265,7 +265,7 @@ var FakeStream = (function() {
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function constructor(stream) {
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this.dict = stream.dict;
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DecodeStream.call(this);
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};
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}
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constructor.prototype = Object.create(DecodeStream.prototype);
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constructor.prototype.readBlock = function() {
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@ -532,8 +532,8 @@ var FlateStream = (function() {
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constructor.prototype.readBlock = function() {
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function repeat(stream, array, len, offset, what) {
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var repeat = stream.getBits(len) + offset;
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while (repeat-- > 0)
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var repeatLength = stream.getBits(len) + offset;
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while (repeatLength-- > 0)
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array[i++] = what;
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}
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@ -821,8 +821,8 @@ var PredictorStream = (function() {
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currentRow[i] = up + c;
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else
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currentRow[i] = upLeft + c;
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break;
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}
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break;
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default:
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error('Unsupported predictor: ' + predictor);
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break;
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@ -1621,6 +1621,7 @@ var CCITTFaxStream = (function() {
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this.err = false;
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var code1, code2, code3;
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if (this.nextLine2D) {
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for (var i = 0; codingLine[i] < columns; ++i)
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refLine[i] = codingLine[i];
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@ -1633,7 +1634,7 @@ var CCITTFaxStream = (function() {
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blackPixels = 0;
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while (codingLine[this.codingPos] < columns) {
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var code1 = this.getTwoDimCode();
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code1 = this.getTwoDimCode();
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switch (code1) {
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case twoDimPass:
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this.addPixels(refLine[refPos + 1], blackPixels);
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@ -1641,9 +1642,8 @@ var CCITTFaxStream = (function() {
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refPos += 2;
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break;
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case twoDimHoriz:
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var code1 = 0, code2 = 0;
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code1 = code2 = 0;
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if (blackPixels) {
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var code3;
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do {
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code1 += (code3 = this.getBlackCode());
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} while (code3 >= 64);
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@ -1651,7 +1651,6 @@ var CCITTFaxStream = (function() {
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code2 += (code3 = this.getWhiteCode());
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} while (code3 >= 64);
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} else {
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var code3;
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do {
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code1 += (code3 = this.getWhiteCode());
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} while (code3 >= 64);
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@ -1831,7 +1830,6 @@ var CCITTFaxStream = (function() {
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this.eof = true;
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}
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} else if (this.err && this.eoline) {
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var code1;
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while (true) {
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code1 = this.lookBits(13);
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if (code1 == EOF) {
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@ -2403,7 +2401,7 @@ var Lexer = (function() {
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var floating = false;
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var str = ch;
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var stream = this.stream;
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do {
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for (;;) {
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ch = stream.lookChar();
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if (ch == '.' && !floating) {
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str += ch;
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@ -2421,7 +2419,7 @@ var Lexer = (function() {
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break;
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}
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stream.skip();
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} while (true);
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}
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var value = parseFloat(str);
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if (isNaN(value))
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error('Invalid floating point number: ' + value);
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@ -2541,7 +2539,7 @@ var Lexer = (function() {
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getHexString: function(ch) {
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var str = '';
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var stream = this.stream;
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while (1) {
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for (;;) {
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ch = stream.getChar();
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if (ch == '>') {
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break;
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@ -3378,15 +3376,15 @@ var Page = (function() {
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rotatePoint: function(x, y) {
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var rotate = this.rotate;
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switch (rotate) {
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default:
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case 0:
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return {x: x, y: this.height - y};
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case 180:
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return {x: this.width - x, y: y};
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case 90:
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return {x: this.width - y, y: this.height - x};
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case 270:
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return {x: y, y: x};
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case 0:
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default:
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return {x: x, y: this.height - y};
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}
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},
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getLinks: function() {
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@ -4268,11 +4266,11 @@ var PartialEvaluator = (function() {
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} else if (IsName(encoding)) {
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baseEncoding = Encodings[encoding.name].slice();
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} else {
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error("Encoding is not a Name nor a Dict");
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error('Encoding is not a Name nor a Dict');
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}
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}
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var fontType = subType.name;
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var fontType = subType.name;
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if (!baseEncoding) {
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switch (fontType) {
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case 'TrueType':
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@ -4307,11 +4305,11 @@ var PartialEvaluator = (function() {
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var kCmapGlyphOffset = 0xE000;
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if (index <= 0x1f || (index >= 127 && index <= 255))
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glyphsMap[glyph] = encodingMap[i] += kCmapGlyphOffset;
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}
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}
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if (fontType == 'TrueType' && fontDict.has('ToUnicode') && differences) {
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if (fontType == 'TrueType' && fontDict.has('ToUnicode') &&
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differences) {
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var cmapObj = xref.fetchIfRef(fontDict.get('ToUnicode'));
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if (IsName(cmapObj)) {
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error('ToUnicode file cmap translation not implemented');
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@ -4810,8 +4808,8 @@ var CanvasGraphics = (function() {
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size = (size <= kRasterizerMin) ? size * kScalePrecision : size;
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var bold = fontObj.black ? (fontObj.bold ? 'bolder' : 'bold')
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: (fontObj.bold ? 'bold' : 'normal');
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var bold = fontObj.black ? (fontObj.bold ? 'bolder' : 'bold') :
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(fontObj.bold ? 'bold' : 'normal');
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var italic = fontObj.italic ? 'italic' : 'normal';
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var rule = italic + ' ' + bold + ' ' + size + 'px "' + name + '"';
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