'use strict' everywhere

Makefile

@@ -45,7 +45,7 @@ test: pdfjs shell-test browser-test
 # Create production output (pdf.js, and corresponding changes to web files)
 #
 production: | bundle
-	@echo "Preparing production viewer..."; \
+	@echo "Preparing viewer-production.html..."; \
 	cd web; \
 	sed '/PDFJSSCRIPT_REMOVE/d' viewer.html > viewer-1.tmp; \
 	sed '/PDFJSSCRIPT_INCLUDE_BUILD/ r viewer-snippet.html' viewer-1.tmp > viewer-production.html; \

src/canvas.js

@@ -1,5 +1,8 @@
 // <canvas> contexts store most of the state we need natively.
 // However, PDF needs a bit more state, which we store here.
+
+'use strict';
+
 var CanvasExtraState = (function canvasExtraState() {
   function constructor(old) {
     // Are soft masks and alpha values shapes or opacities?

src/charsets.js

@@ -1,6 +1,8 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 var ISOAdobeCharset = [
   '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar',
   'percent', 'ampersand', 'quoteright', 'parenleft', 'parenright',

src/cidmaps.js

@@ -1,6 +1,8 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 var CIDToUnicodeMaps = {
   'Adobe-Japan1': [[32, 160], {f: 12, c: 33}, [45, 8209], {f: 46, c: 46}, 165,
     {f: 2, c: 93}, [95, 818], [96, 768], {f: 27, c: 97}, 166, 125, [732, 771],

src/colorspace.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var ColorSpace = (function colorSpaceColorSpace() {
   // Constructor should define this.numComps, this.defaultColor, this.name
   function constructor() {

src/core.js

@@ -1,16 +1,19 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
+var globalScope = (typeof window === 'undefined') ? this : window;
+
 var ERRORS = 0, WARNINGS = 1, TODOS = 5;
 var verbosity = WARNINGS;
-
 var useWorker = false;
 
 // The global PDF object exposes the API
 // In production, it will be declared outside a global wrapper
 // In development, it will be declared here
-if (typeof PDF === 'undefined') {
+if (!globalScope.PDF) {
-  PDF = {};
+  globalScope.PDF = {};
 }
 
 // getPdf()
@@ -46,7 +49,7 @@ function getPdf(arg, callback) {
   };
   xhr.send(null);
 }
-PDF.getPdf = getPdf;
+globalScope.PDF.getPdf = getPdf;
 
 var Page = (function pagePage() {
   function constructor(xref, pageNumber, pageDict, ref) {
@@ -605,4 +608,4 @@ var PDFDoc = (function() {
 
   return constructor;
 })();
-PDF.PDFDoc = PDFDoc;
+globalScope.PDF.PDFDoc = PDFDoc;

src/crypto.js

@@ -1,6 +1,8 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 var ARCFourCipher = (function arcFourCipher() {
   function constructor(key) {
     this.a = 0;

src/evaluator.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var PartialEvaluator = (function partialEvaluator() {
   function constructor(xref, handler, uniquePrefix) {
     this.state = new EvalState();

src/fonts.js

@@ -1,6 +1,8 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 var isWorker = (typeof window == 'undefined');
 
 /**

src/function.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var PDFFunction = (function() {
   var CONSTRUCT_SAMPLED = 0;
   var CONSTRUCT_INTERPOLATED = 2;

src/glyphlist.js

@@ -1,6 +1,8 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 var GlyphsUnicode = {
   A: 0x0041,
   AE: 0x00C6,

src/image.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var PDFImage = (function pdfImage() {
   function constructor(xref, res, image, inline) {
     this.image = image;

src/metrics.js

@@ -1,6 +1,8 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 var Metrics = {
   'Courier': 600,
   'Courier-Bold': 600,

src/obj.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var Name = (function nameName() {
   function constructor(name) {
     this.name = name;

src/parser.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var EOF = {};
 
 function isEOF(v) {

src/pattern.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var Pattern = (function patternPattern() {
   // Constructor should define this.getPattern
   function constructor() {

src/stream.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 var Stream = (function streamStream() {
   function constructor(arrayBuffer, start, length, dict) {
     this.bytes = new Uint8Array(arrayBuffer);

src/util.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 function log(msg) {
   if (console && console.log)
     console.log(msg);

src/worker.js

@@ -1,6 +1,8 @@
-/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+'use strict';
+
 function MessageHandler(name, comObj) {
   this.name = name;
   this.comObj = comObj;
@@ -172,9 +174,9 @@ var workerConsole = {
 
 // Worker thread?
 if (typeof window === 'undefined') {
-  console = workerConsole;
+  globalScope.console = workerConsole;
 
   // Listen for messages from the main thread.
-  var handler = new MessageHandler('worker_processor', this);
+  var handler = new MessageHandler('worker_processor', globalScope);
   WorkerProcessorHandler.setup(handler);
 }

src/worker_loader.js

@@ -1,3 +1,8 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 importScripts('../src/core.js');
 importScripts('../src/util.js');
 importScripts('../src/canvas.js');