Only one worker file, bundled in pdf.js

Makefile

@@ -1,5 +1,6 @@
 REPO = git@github.com:andreasgal/pdf.js.git
 BUILD_DIR := build
+PDFJS_TARGET := $(BUILD_DIR)/pdf.js
 DEFAULT_BROWSERS := resources/browser_manifests/browser_manifest.json
 DEFAULT_TESTS := test_manifest.json
 
@@ -10,7 +11,6 @@ EXTENSION_NAME := pdf.js.xpi
 -include local.mk
 
 # JS files needed for pdf.js.
-# This list doesn't account for the 'worker' directory.
 PDF_JS_FILES = \
   core.js \
   util.js \
@@ -30,17 +30,9 @@ PDF_JS_FILES = \
   parser.js \
   pattern.js \
   stream.js \
-  worker/message_handler.js \
-  worker/processor_handler.js \
+  worker.js \
 	$(NULL)
 
-PDF_WORKER_FILES = \
-	worker/console.js \
-	worker/message_handler.js \
-	worker/pdf_worker_loader.js \
-	worker/processor_handler.js \
-	$(NULL)	
-
 # make server
 #
 # This target starts a local web server at localhost:8888. This can be
@@ -55,10 +47,10 @@ test: pdfjs shell-test browser-test
 #
 pdfjs:
 	@echo "Bundling source files..."
-	@mkdir -p build
+	@mkdir -p $(BUILD_DIR)
 	@cd src; \
 	cat $(PDF_JS_FILES) > all_files.tmp; \
-	sed -E '/INSERT_POINT/ r all_files.tmp' pdf.js > ../build/pdf.js; \
+	sed -E '/INSERT_POINT/ r all_files.tmp' pdf.js > ../$(PDFJS_TARGET); \
 	rm -f all_files.tmp; \
 	cd ..
 
@@ -121,7 +113,7 @@ browser-test:
 # To install gjslint, see:
 #
 # <http://code.google.com/closure/utilities/docs/linter_howto.html>
-SRC_DIRS := . utils worker web test examples/helloworld extensions/firefox \
+SRC_DIRS := . utils web test examples/helloworld extensions/firefox \
             extensions/firefox/components
 GJSLINT_FILES = $(foreach DIR,$(SRC_DIRS),$(wildcard $(DIR)/*.js))
 lint:
@@ -138,7 +130,6 @@ lint:
 GH_PAGES = $(BUILD_DIR)/gh-pages
 web: | extension compiler pages-repo \
 	$(addprefix $(GH_PAGES)/, $(PDF_JS_FILES)) \
-	$(addprefix $(GH_PAGES)/, $(PDF_WORKER_FILES)) \
 	$(addprefix $(GH_PAGES)/, $(wildcard web/*.*)) \
 	$(addprefix $(GH_PAGES)/, $(wildcard web/images/*.*)) \
 	$(addprefix $(GH_PAGES)/, $(wildcard $(EXTENSION_SRC)/*.xpi))
@@ -161,7 +152,6 @@ pages-repo: | $(BUILD_DIR)
 	git clone -b gh-pages $(REPO) $(GH_PAGES); \
 	rm -rf $(GH_PAGES)/*; \
 	fi;
-	@mkdir -p $(GH_PAGES)/worker;
 	@mkdir -p $(GH_PAGES)/web;
 	@mkdir -p $(GH_PAGES)/web/images;
 	@mkdir -p $(GH_PAGES)/$(EXTENSION_SRC);
@@ -169,9 +159,6 @@ pages-repo: | $(BUILD_DIR)
 $(GH_PAGES)/%.js: %.js
 	@cp $< $@
 
-$(GH_PAGES)/worker/%: worker/%
-	@cp $< $@
-
 $(GH_PAGES)/web/%: web/%
 	@cp $< $@
 
@@ -206,14 +193,12 @@ PDF_WEB_FILES = \
 	web/viewer.js \
 	web/viewer.html \
 	$(NULL)
-extension:
+extension: | pdfjs
 	# Copy a standalone version of pdf.js inside the content directory
 	@rm -Rf $(EXTENSION_SRC)/$(CONTENT_DIR)/
 	@mkdir -p $(EXTENSION_SRC)/$(CONTENT_DIR)/web
-	@mkdir -p $(EXTENSION_SRC)/$(CONTENT_DIR)/worker
-	@cp $(PDF_JS_FILES) $(EXTENSION_SRC)/$(CONTENT_DIR)/ 
+	@cp $(PDFJS_TARGET) $(EXTENSION_SRC)/$(CONTENT_DIR)/ 
 	@cp -r $(PDF_WEB_FILES) $(EXTENSION_SRC)/$(CONTENT_DIR)/web/
-	@cp -r $(PDF_WORKER_FILES) $(EXTENSION_SRC)/$(CONTENT_DIR)/worker/
 
 	# Create the xpi
 	@cd $(EXTENSION_SRC); zip -r $(EXTENSION_NAME) *

src/core.js

@@ -4,9 +4,6 @@
 var ERRORS = 0, WARNINGS = 1, TODOS = 5;
 var verbosity = WARNINGS;
 
-// Set this to true if you want to use workers.
-var useWorker = false;
-
 //
 // getPdf()
 // Convenience function to perform binary Ajax GET
@@ -463,7 +460,7 @@ var PDFDoc = (function() {
     this.pageCache = [];
 
     if (useWorker) {
-      var worker = new Worker('../worker/pdf_worker_loader.js');
+      var worker = new Worker('../build/pdf.js');
     } else {
       // If we don't use a worker, just post/sendMessage to the main thread.
       var worker = {

src/pdf.js

@@ -1,18 +1,32 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
-// // TODO: Global namespace
-// var PDF = {};
+var PDF = {};
 
-(function(){
+(function(globalScope){
   // Use strict in our context only - users might not want it
   'use strict';
 
+  // Set this to true if you want to use workers.
+  var useWorker = false;
+  var console;
+
   // Files are inserted below - see Makefile  
   /* INSERT_POINT */
 
-  // Expose API in global object
-  window.PDFDoc = PDFDoc;
-  window.getPdf = getPdf;
+  // Worker-specific
+  if (typeof window !== 'undefined') {
+    console = window.console;
+  } else {
+    var consoleTimer = {};
+    console = workerConsole;
+  
+    // Listen for messages from the main thread.
+    var handler = new MessageHandler('worker_processor', globalScope);
+    WorkerProcessorHandler.setup(handler);
+  }
 
-})();
+  // Expose API in global object
+  PDF.PDFDoc = PDFDoc;
+  PDF.getPdf = getPdf;
+})(this);

src/worker.js

@@ -1,6 +1,49 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
+function MessageHandler(name, comObj) {
+  this.name = name;
+  this.comObj = comObj;
+  var ah = this.actionHandler = {};
+
+  ah['console_log'] = [function(data) {
+      console.log.apply(console, data);
+  }];
+  ah['console_error'] = [function(data) {
+      console.error.apply(console, data);
+  }];
+
+  comObj.onmessage = function(event) {
+    var data = event.data;
+    if (data.action in ah) {
+      var action = ah[data.action];
+      action[0].call(action[1], data.data);
+    } else {
+      throw 'Unkown action from worker: ' + data.action;
+    }
+  };
+}
+
+MessageHandler.prototype = {
+  on: function(actionName, handler, scope) {
+    var ah = this.actionHandler;
+    if (ah[actionName]) {
+      throw "There is already an actionName called '" + actionName + "'";
+    }
+    ah[actionName] = [handler, scope];
+  },
+
+  send: function(actionName, data) {
+    this.comObj.postMessage({
+      action: actionName,
+      data: data
+    });
+  }
+};
+
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
 var WorkerProcessorHandler = {
   setup: function(handler) {
     var pdfDoc = null;
@@ -97,3 +140,33 @@ var WorkerProcessorHandler = {
     });
   }
 };
+
+var workerConsole = {
+  log: function log() {
+    var args = Array.prototype.slice.call(arguments);
+    postMessage({
+      action: 'console_log',
+      data: args
+    });
+  },
+
+  error: function error() {
+    var args = Array.prototype.slice.call(arguments);
+    postMessage({
+      action: 'console_error',
+      data: args
+    });
+  },
+
+  time: function(name) {
+    consoleTimer[name] = Date.now();
+  },
+
+  timeEnd: function(name) {
+    var time = consoleTimer[name];
+    if (time == null) {
+      throw 'Unkown timer name ' + name;
+    }
+    this.log('Timer:', name, Date.now() - time);
+  }
+};    

src/worker/console.js

@@ -1,34 +0,0 @@
-/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
-
-var consoleTimer = {};
-var console = {
-  log: function log() {
-    var args = Array.prototype.slice.call(arguments);
-    postMessage({
-      action: 'console_log',
-      data: args
-    });
-  },
-
-  error: function error() {
-    var args = Array.prototype.slice.call(arguments);
-    postMessage({
-      action: 'console_error',
-      data: args
-    });
-  },
-
-  time: function(name) {
-    consoleTimer[name] = Date.now();
-  },
-
-  timeEnd: function(name) {
-    var time = consoleTimer[name];
-    if (time == null) {
-      throw 'Unkown timer name ' + name;
-    }
-    this.log('Timer:', name, Date.now() - time);
-  }
-};
-

src/worker/message_handler.js

@@ -1,43 +0,0 @@
-/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
-/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
-
-function MessageHandler(name, comObj) {
-  this.name = name;
-  this.comObj = comObj;
-  var ah = this.actionHandler = {};
-
-  ah['console_log'] = [function(data) {
-      console.log.apply(console, data);
-  }];
-  ah['console_error'] = [function(data) {
-      console.error.apply(console, data);
-  }];
-
-  comObj.onmessage = function(event) {
-    var data = event.data;
-    if (data.action in ah) {
-      var action = ah[data.action];
-      action[0].call(action[1], data.data);
-    } else {
-      throw 'Unkown action from worker: ' + data.action;
-    }
-  };
-}
-
-MessageHandler.prototype = {
-  on: function(actionName, handler, scope) {
-    var ah = this.actionHandler;
-    if (ah[actionName]) {
-      throw "There is already an actionName called '" + actionName + "'";
-    }
-    ah[actionName] = [handler, scope];
-  },
-
-  send: function(actionName, data) {
-    this.comObj.postMessage({
-      action: actionName,
-      data: data
-    });
-  }
-};
-

src/worker/pdf_worker_loader.js

@@ -1,19 +0,0 @@
-/* -*- 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('console.js');
-importScripts('message_handler.js');
-importScripts('../pdf.js');
-importScripts('../fonts.js');
-importScripts('../crypto.js');
-importScripts('../glyphlist.js');
-importScripts('../metrics.js');
-importScripts('processor_handler.js');
-
-// Listen for messages from the main thread.
-var pdfDoc = null;
-
-var handler = new MessageHandler('worker_processor', this);
-WorkerProcessorHandler.setup(handler);

web/viewer.js

@@ -122,7 +122,7 @@ var PDFView = {
     document.title = this.url = url;
 
     var self = this;
-    getPdf(
+    PDF.getPdf(
       {
         url: url,
         progress: function getPdfProgress(evt) {
@@ -209,7 +209,7 @@ var PDFView = {
     while (container.hasChildNodes())
       container.removeChild(container.lastChild);
 
-    var pdf = new PDFDoc(data);
+    var pdf = new PDF.PDFDoc(data);
     var pagesCount = pdf.numPages;
     document.getElementById('numPages').innerHTML = pagesCount;
     document.getElementById('pageNumber').max = pagesCount;