pdf.js+pdfobject.js

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ /* Copyright 2012 Mozilla Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /*jshint globalstrict: false */ /* globals PDFJS */ // Initializing PDFJS global object (if still undefined) if (typeof PDFJS === 'undefined') { (typeof window !== 'undefined' ? window : this).PDFJS = {}; } PDFJS.version = '1.1.159'; PDFJS.build = '82536f8'; (function pdfjsWrapper() { // Use strict in our context only - users might not want it 'use strict'; /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ /* Copyright 2012 Mozilla Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* globals Cmd, ColorSpace, Dict, MozBlobBuilder, Name, PDFJS, Ref, URL, Promise */ 'use strict'; var globalScope = (typeof window === 'undefined') ? this : window; var isWorker = (typeof window === 'undefined'); var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0]; var TextRenderingMode = { FILL: 0, STROKE: 1, FILL_STROKE: 2, INVISIBLE: 3, FILL_ADD_TO_PATH: 4, STROKE_ADD_TO_PATH: 5, FILL_STROKE_ADD_TO_PATH: 6, ADD_TO_PATH: 7, FILL_STROKE_MASK: 3, ADD_TO_PATH_FLAG: 4 }; var ImageKind = { GRAYSCALE_1BPP: 1, RGB_24BPP: 2, RGBA_32BPP: 3 }; var AnnotationType = { WIDGET: 1, TEXT: 2, LINK: 3 }; var StreamType = { UNKNOWN: 0, FLATE: 1, LZW: 2, DCT: 3, JPX: 4, JBIG: 5, A85: 6, AHX: 7, CCF: 8, RL: 9 }; var FontType = { UNKNOWN: 0, TYPE1: 1, TYPE1C: 2, CIDFONTTYPE0: 3, CIDFONTTYPE0C: 4, TRUETYPE: 5, CIDFONTTYPE2: 6, TYPE3: 7, OPENTYPE: 8, TYPE0: 9, MMTYPE1: 10 }; // The global PDFJS object exposes the API // In production, it will be declared outside a global wrapper // In development, it will be declared here if (!globalScope.PDFJS) { globalScope.PDFJS = {}; } globalScope.PDFJS.pdfBug = false; PDFJS.VERBOSITY_LEVELS = { errors: 0, warnings: 1, infos: 5 }; // All the possible operations for an operator list. var OPS = PDFJS.OPS = { // Intentionally start from 1 so it is easy to spot bad operators that will be // 0's. dependency: 1, setLineWidth: 2, setLineCap: 3, setLineJoin: 4, setMiterLimit: 5, setDash: 6, setRenderingIntent: 7, setFlatness: 8, setGState: 9, save: 10, restore: 11, transform: 12, moveTo: 13, lineTo: 14, curveTo: 15, curveTo2: 16, curveTo3: 17, closePath: 18, rectangle: 19, stroke: 20, closeStroke: 21, fill: 22, eoFill: 23, fillStroke: 24, eoFillStroke: 25, closeFillStroke: 26, closeEOFillStroke: 27, endPath: 28, clip: 29, eoClip: 30, beginText: 31, endText: 32, setCharSpacing: 33, setWordSpacing: 34, setHScale: 35, setLeading: 36, setFont: 37, setTextRenderingMode: 38, setTextRise: 39, moveText: 40, setLeadingMoveText: 41, setTextMatrix: 42, nextLine: 43, showText: 44, showSpacedText: 45, nextLineShowText: 46, nextLineSetSpacingShowText: 47, setCharWidth: 48, setCharWidthAndBounds: 49, setStrokeColorSpace: 50, setFillColorSpace: 51, setStrokeColor: 52, setStrokeColorN: 53, setFillColor: 54, setFillColorN: 55, setStrokeGray: 56, setFillGray: 57, setStrokeRGBColor: 58, setFillRGBColor: 59, setStrokeCMYKColor: 60, setFillCMYKColor: 61, shadingFill: 62, beginInlineImage: 63, beginImageData: 64, endInlineImage: 65, paintXObject: 66, markPoint: 67, markPointProps: 68, beginMarkedContent: 69, beginMarkedContentProps: 70, endMarkedContent: 71, beginCompat: 72, endCompat: 73, paintFormXObjectBegin: 74, paintFormXObjectEnd: 75, beginGroup: 76, endGroup: 77, beginAnnotations: 78, endAnnotations: 79, beginAnnotation: 80, endAnnotation: 81, paintJpegXObject: 82, paintImageMaskXObject: 83, paintImageMaskXObjectGroup: 84, paintImageXObject: 85, paintInlineImageXObject: 86, paintInlineImageXObjectGroup: 87, paintImageXObjectRepeat: 88, paintImageMaskXObjectRepeat: 89, paintSolidColorImageMask: 90, constructPath: 91 }; // A notice for devs. These are good for things that are helpful to devs, such // as warning that Workers were disabled, which is important to devs but not // end users. function info(msg) { if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.infos) { console.log('Info: ' + msg); } } // Non-fatal warnings. function warn(msg) { if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.warnings) { console.log('Warning: ' + msg); } } // Fatal errors that should trigger the fallback UI and halt execution by // throwing an exception. function error(msg) { if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.errors) { console.log('Error: ' + msg); console.log(backtrace()); } UnsupportedManager.notify(UNSUPPORTED_FEATURES.unknown); throw new Error(msg); } function backtrace() { try { throw new Error(); } catch (e) { return e.stack ? e.stack.split('\n').slice(2).join('\n') : ''; } } function assert(cond, msg) { if (!cond) { error(msg); } } var UNSUPPORTED_FEATURES = PDFJS.UNSUPPORTED_FEATURES = { unknown: 'unknown', forms: 'forms', javaScript: 'javaScript', smask: 'smask', shadingPattern: 'shadingPattern', font: 'font' }; var UnsupportedManager = PDFJS.UnsupportedManager = (function UnsupportedManagerClosure() { var listeners = []; return { listen: function (cb) { listeners.push(cb); }, notify: function (featureId) { warn('Unsupported feature "' + featureId + '"'); for (var i = 0, ii = listeners.length; i < ii; i++) { listeners[i](featureId); } } }; })(); // Combines two URLs. The baseUrl shall be absolute URL. If the url is an // absolute URL, it will be returned as is. function combineUrl(baseUrl, url) { if (!url) { return baseUrl; } if (/^[a-z][a-z0-9+\-.]*:/i.test(url)) { return url; } var i; if (url.charAt(0) === '/') { // absolute path i = baseUrl.indexOf('://'); if (url.charAt(1) === '/') { ++i; } else { i = baseUrl.indexOf('/', i + 3); } return baseUrl.substring(0, i) + url; } else { // relative path var pathLength = baseUrl.length; i = baseUrl.lastIndexOf('#'); pathLength = i >= 0 ? i : pathLength; i = baseUrl.lastIndexOf('?', pathLength); pathLength = i >= 0 ? i : pathLength; var prefixLength = baseUrl.lastIndexOf('/', pathLength); return baseUrl.substring(0, prefixLength + 1) + url; } } // Validates if URL is safe and allowed, e.g. to avoid XSS. function isValidUrl(url, allowRelative) { if (!url) { return false; } // RFC 3986 (http://tools.ietf.org/html/rfc3986#section-3.1) // scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) var protocol = /^[a-z][a-z0-9+\-.]*(?=:)/i.exec(url); if (!protocol) { return allo