Add verbosity as an api setting.

src/core/worker.js

@@ -230,6 +230,7 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
       PDFJS.maxImageSize = data.maxImageSize === undefined ?
                            -1 : data.maxImageSize;
       PDFJS.disableFontFace = data.disableFontFace;
+      PDFJS.verbosity = data.verbosity;
 
       getPdfManager(data).then(function pdfManagerReady() {
         loadDocument(false).then(onSuccess, function loadFailure(ex) {

src/display/api.js

@@ -93,6 +93,18 @@ PDFJS.pdfBug = PDFJS.pdfBug === undefined ? false : PDFJS.pdfBug;
  */
 PDFJS.postMessageTransfers = PDFJS.postMessageTransfers === undefined ?
                              true : PDFJS.postMessageTransfers;
+
+/**
+ * Controls the logging level.
+ * The constants from PDFJS.VERBOSITY_LEVELS should be used:
+ * - errors
+ * - warnings [default]
+ * - infos
+ * @var {Number}
+ */
+PDFJS.verbosity = PDFJS.verbosity === undefined ?
+                  PDFJS.VERBOSITY_LEVELS.warnings : PDFJS.verbosity;
+
 /**
  * This is the main entry point for loading a PDF and interacting with it.
  * NOTE: If a URL is used to fetch the PDF data a standard XMLHttpRequest(XHR)
@@ -864,7 +876,8 @@ var WorkerTransport = (function WorkerTransportClosure() {
         source: source,
         disableRange: PDFJS.disableRange,
         maxImageSize: PDFJS.maxImageSize,
-        disableFontFace: PDFJS.disableFontFace
+        disableFontFace: PDFJS.disableFontFace,
+        verbosity: PDFJS.verbosity
       });
     },
 

src/shared/util.js

@@ -22,9 +22,6 @@ var globalScope = (typeof window === 'undefined') ? this : window;
 
 var isWorker = (typeof window == 'undefined');
 
-var ERRORS = 0, WARNINGS = 1, INFOS = 5;
-var verbosity = WARNINGS;
-
 var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
 
 var TextRenderingMode = {
@@ -49,6 +46,12 @@ if (!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
@@ -157,7 +160,7 @@ var log = (function() {
 // 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 (verbosity >= INFOS) {
+  if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.infos) {
     log('Info: ' + msg);
     PDFJS.LogManager.notify('info', msg);
   }
@@ -165,7 +168,7 @@ function info(msg) {
 
 // Non-fatal warnings that should trigger the fallback UI.
 function warn(msg) {
-  if (verbosity >= WARNINGS) {
+  if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.warnings) {
     log('Warning: ' + msg);
     PDFJS.LogManager.notify('warn', msg);
   }

web/viewer.js

@@ -1603,6 +1603,10 @@ document.addEventListener('DOMContentLoaded', function webViewerLoad(evt) {
     USE_ONLY_CSS_ZOOM = (hashParams['useOnlyCssZoom'] === 'true');
   }
 
+  if ('verbosity' in hashParams) {
+    PDFJS.verbosity = hashParams['verbosity'] | 0;
+  }
+
 //#if !(FIREFOX || MOZCENTRAL)
   var locale = navigator.language;
   if ('locale' in hashParams)