PDF.js version 1.1.551 - See mozilla/pdf.js@2a5616c2aa2388e65669f5f99481b35e7422bc5e

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.1.546",
+  "version": "1.1.551",
   "main": [
     "build/pdf.js",
     "build/pdf.worker.js"

build/pdf.js

@@ -22,8 +22,8 @@ if (typeof PDFJS === 'undefined') {
   (typeof window !== 'undefined' ? window : this).PDFJS = {};
 }
 
-PDFJS.version = '1.1.546';
-PDFJS.build = 'b3a9a0d';
+PDFJS.version = '1.1.551';
+PDFJS.build = '2a5616c';
 
 (function pdfjsWrapper() {
   // Use strict in our context only - users might not want it
@@ -225,6 +225,11 @@ function warn(msg) {
   }
 }
 
+// Deprecated API function -- treated as warnings.
+function deprecated(details) {
+  warn('Deprecated API usage: ' + details);
+}
+
 // Fatal errors that should trigger the fallback UI and halt execution by
 // throwing an exception.
 function error(msg) {
@@ -1878,12 +1883,19 @@ PDFJS.getDocument = function getDocument(src,
   var task = new PDFDocumentLoadingTask();
 
   // Support of the obsolete arguments (for compatibility with API v1.0)
+  if (arguments.length > 1) {
+    deprecated('getDocument is called with pdfDataRangeTransport, ' +
+               'passwordCallback or progressCallback argument');
+  }
   if (pdfDataRangeTransport) {
     if (!(pdfDataRangeTransport instanceof PDFDataRangeTransport)) {
       // Not a PDFDataRangeTransport instance, trying to add missing properties.
       pdfDataRangeTransport = Object.create(pdfDataRangeTransport);
       pdfDataRangeTransport.length = src.length;
       pdfDataRangeTransport.initialData = src.initialData;
+      if (!pdfDataRangeTransport.abort) {
+        pdfDataRangeTransport.abort = function () {};
+      }
     }
     src = Object.create(src);
     src.range = pdfDataRangeTransport;
@@ -1943,6 +1955,7 @@ PDFJS.getDocument = function getDocument(src,
   workerInitializedCapability.promise.then(function transportInitialized() {
     transport.fetchDocument(task, params);
   });
+  task._transport = transport;
 
   return task;
 };
@@ -1955,6 +1968,7 @@ var PDFDocumentLoadingTask = (function PDFDocumentLoadingTaskClosure() {
   /** @constructs PDFDocumentLoadingTask */
   function PDFDocumentLoadingTask() {
     this._capability = createPromiseCapability();
+    this._transport = null;
 
     /**
      * Callback to request a password if wrong or no password was provided.
@@ -1980,7 +1994,14 @@ var PDFDocumentLoadingTask = (function PDFDocumentLoadingTaskClosure() {
       return this._capability.promise;
     },
 
-    // TODO add cancel or abort method
+    /**
+     * Aborts all network requests and destroys worker.
+     * @return {Promise} A promise that is resolved after destruction activity
+     *                   is completed.
+     */
+    destroy: function () {
+      return this._transport.destroy();
+    },
 
     /**
      * Registers callbacks to indicate the document loading completion.
@@ -2067,6 +2088,9 @@ var PDFDataRangeTransport = (function pdfDataRangeTransportClosure() {
     requestDataRange:
         function PDFDataRangeTransport_requestDataRange(begin, end) {
       throw new Error('Abstract method PDFDataRangeTransport.requestDataRange');
+    },
+
+    abort: function PDFDataRangeTransport_abort() {
     }
   };
   return PDFDataRangeTransport;
@@ -2080,9 +2104,10 @@ PDFJS.PDFDataRangeTransport = PDFDataRangeTransport;
  * @class
  */
 var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
-  function PDFDocumentProxy(pdfInfo, transport) {
+  function PDFDocumentProxy(pdfInfo, transport, loadingTask) {
     this.pdfInfo = pdfInfo;
     this.transport = transport;
+    this.loadingTask = loadingTask;
   }
   PDFDocumentProxy.prototype = /** @lends PDFDocumentProxy.prototype */ {
     /**
@@ -2205,7 +2230,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
      * Destroys current document instance and terminates worker.
      */
     destroy: function PDFDocumentProxy_destroy() {
-      this.transport.destroy();
+      return this.transport.destroy();
     }
   };
   return PDFDocumentProxy;
@@ -2282,8 +2307,9 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
     this.commonObjs = transport.commonObjs;
     this.objs = new PDFObjects();
     this.cleanupAfterRender = false;
-    this.pendingDestroy = false;
+    this.pendingCleanup = false;
     this.intentStates = {};
+    this.destroyed = false;
   }
   PDFPageProxy.prototype = /** @lends PDFPageProxy.prototype */ {
     /**
@@ -2347,7 +2373,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
 
       // If there was a pending destroy cancel it so no cleanup happens during
       // this call to render.
-      this.pendingDestroy = false;
+      this.pendingCleanup = false;
 
       var renderingIntent = (params.intent === 'print' ? 'print' : 'display');
 
@@ -2388,13 +2414,14 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
 
       // Obsolete parameter support
       if (params.continueCallback) {
+        deprecated('render is used with continueCallback parameter');
         renderTask.onContinue = params.continueCallback;
       }
 
       var self = this;
       intentState.displayReadyCapability.promise.then(
         function pageDisplayReadyPromise(transparency) {
-          if (self.pendingDestroy) {
+          if (self.pendingCleanup) {
             complete();
             return;
           }
@@ -2414,9 +2441,9 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
         }
 
         if (self.cleanupAfterRender) {
-          self.pendingDestroy = true;
+          self.pendingCleanup = true;
         }
-        self._tryDestroy();
+        self._tryCleanup();
 
         if (error) {
           internalRenderTask.capability.reject(error);
@@ -2477,20 +2504,52 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
         pageIndex: this.pageNumber - 1
       });
     },
+
+    /**
+     * Destroys page object.
+     */
+    _destroy: function PDFPageProxy_destroy() {
+      this.destroyed = true;
+      this.transport.pageCache[this.pageIndex] = null;
+
+      var waitOn = [];
+      Object.keys(this.intentStates).forEach(function(intent) {
+        var intentState = this.intentStates[intent];
+        intentState.renderTasks.forEach(function(renderTask) {
+          var renderCompleted = renderTask.capability.promise.
+            catch(function () {}); // ignoring failures
+          waitOn.push(renderCompleted);
+          renderTask.cancel();
+        });
+      }, this);
+      this.objs.clear();
+      this.annotationsPromise = null;
+      this.pendingCleanup = false;
+      return Promise.all(waitOn);
+    },
+
     /**
-     * Destroys resources allocated by the page.
+     * Cleans up resources allocated by the page. (deprecated)
      */
-    destroy: function PDFPageProxy_destroy() {
-      this.pendingDestroy = true;
-      this._tryDestroy();
+    destroy: function() {
+      deprecated('page destroy method, use cleanup() instead');
+      this.cleanup();
+    },
+
+    /**
+     * Cleans up resources allocated by the page.
+     */
+    cleanup: function PDFPageProxy_cleanup() {
+      this.pendingCleanup = true;
+      this._tryCleanup();
     },
     /**
      * For internal use only. Attempts to clean up if rendering is in a state
      * where that's possible.
      * @ignore
      */
-    _tryDestroy: function PDFPageProxy__destroy() {
-      if (!this.pendingDestroy ||
+    _tryCleanup: function PDFPageProxy_tryCleanup() {
+      if (!this.pendingCleanup ||
           Object.keys(this.intentStates).some(function(intent) {
             var intentState = this.intentStates[intent];
             return (intentState.renderTasks.length !== 0 ||
@@ -2504,7 +2563,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
       }, this);
       this.objs.clear();
       this.annotationsPromise = null;
-      this.pendingDestroy = false;
+      this.pendingCleanup = false;
     },
     /**
      * For internal use only.
@@ -2542,7 +2601,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
 
       if (operatorListChunk.lastChunk) {
         intentState.receivingOperatorList = false;
-        this._tryDestroy();
+        this._tryCleanup();
       }
     }
   };
@@ -2560,6 +2619,8 @@ var WorkerTransport = (function WorkerTransportClosure() {
     this.commonObjs = new PDFObjects();
 
     this.loadingTask = null;
+    this.destroyed = false;
+    this.destroyCapability = null;
 
     this.pageCache = [];
     this.pagePromises = [];
@@ -2618,15 +2679,40 @@ var WorkerTransport = (function WorkerTransportClosure() {
   }
   WorkerTransport.prototype = {
     destroy: function WorkerTransport_destroy() {
+      if (this.destroyCapability) {
+        return this.destroyCapability.promise;
+      }
+
+      this.destroyed = true;
+      this.destroyCapability = createPromiseCapability();
+
+      var waitOn = [];
+      // We need to wait for all renderings to be completed, e.g.
+      // timeout/rAF can take a long time.
+      this.pageCache.forEach(function (page) {
+        if (page) {
+          waitOn.push(page._destroy());
+        }
+      });
       this.pageCache = [];
       this.pagePromises = [];
       var self = this;
-      this.messageHandler.sendWithPromise('Terminate', null).then(function () {
+      // We also need to wait for the worker to finish its long running tasks.
+      var terminated = this.messageHandler.sendWithPromise('Terminate', null);
+      waitOn.push(terminated);
+      Promise.all(waitOn).then(function () {
         FontLoader.clear();
         if (self.worker) {
           self.worker.terminate();
         }
-      });
+        if (self.pdfDataRangeTransport) {
+          self.pdfDataRangeTransport.abort();
+          self.pdfDataRangeTransport = null;
+        }
+        self.messageHandler = null;
+        self.destroyCapability.resolve();
+      }, this.destroyCapability.reject);
+      return this.destroyCapability.promise;
     },
 
     setupFakeWorker: function WorkerTransport_setupFakeWorker() {
@@ -2700,9 +2786,10 @@ var WorkerTransport = (function WorkerTransportClosure() {
       messageHandler.on('GetDoc', function transportDoc(data) {
         var pdfInfo = data.pdfInfo;
         this.numPages = data.pdfInfo.numPages;
-        var pdfDocument = new PDFDocumentProxy(pdfInfo, this);
+        var loadingTask = this.loadingTask;
+        var pdfDocument = new PDFDocumentProxy(pdfInfo, this, loadingTask);
         this.pdfDocument = pdfDocument;
-        this.loadingTask._capability.resolve(pdfDocument);
+        loadingTask._capability.resolve(pdfDocument);
       }, this);
 
       messageHandler.on('NeedPassword',
@@ -2903,6 +2990,12 @@ var WorkerTransport = (function WorkerTransportClosure() {
     },
 
     fetchDocument: function WorkerTransport_fetchDocument(loadingTask, source) {
+      if (this.destroyed) {
+        loadingTask._capability.reject(new Error('Loading aborted'));
+        this.destroyCapability.resolve();
+        return;
+      }
+
       this.loadingTask = loadingTask;
 
       source.disableAutoFetch = PDFJS.disableAutoFetch;
@@ -2941,6 +3034,9 @@ var WorkerTransport = (function WorkerTransportClosure() {
       var promise = this.messageHandler.sendWithPromise('GetPage', {
         pageIndex: pageIndex
       }).then(function (pageInfo) {
+        if (this.destroyed) {
+          throw new Error('Transport destroyed');
+        }
         var page = new PDFPageProxy(pageIndex, pageInfo, this);
         this.pageCache[pageIndex] = page;
         return page;
@@ -2998,7 +3094,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
         for (var i = 0, ii = this.pageCache.length; i < ii; i++) {
           var page = this.pageCache[i];
           if (page) {
-            page.destroy();
+            page.cleanup();
           }
         }
         this.commonObjs.clear();

build/pdf.worker.js

@@ -22,8 +22,8 @@ if (typeof PDFJS === 'undefined') {
   (typeof window !== 'undefined' ? window : this).PDFJS = {};
 }
 
-PDFJS.version = '1.1.546';
-PDFJS.build = 'b3a9a0d';
+PDFJS.version = '1.1.551';
+PDFJS.build = '2a5616c';
 
 (function pdfjsWrapper() {
   // Use strict in our context only - users might not want it
@@ -225,6 +225,11 @@ function warn(msg) {
   }
 }
 
+// Deprecated API function -- treated as warnings.
+function deprecated(details) {
+  warn('Deprecated API usage: ' + details);
+}
+
 // Fatal errors that should trigger the fallback UI and halt execution by
 // throwing an exception.
 function error(msg) {
@@ -2172,7 +2177,7 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
 
     this.chunksNeededByRequest = {};
     this.requestsByChunk = {};
-    this.callbacksByRequest = {};
+    this.promisesByRequest = {};
     this.progressiveDataLength = 0;
 
     this._loadedStreamCapability = createPromiseCapability();
@@ -2191,12 +2196,11 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
     // contiguous ranges to load in as few requests as possible
     requestAllChunks: function ChunkedStreamManager_requestAllChunks() {
       var missingChunks = this.stream.getMissingChunks();
-      this.requestChunks(missingChunks);
+      this._requestChunks(missingChunks);
       return this._loadedStreamCapability.promise;
     },
 
-    requestChunks: function ChunkedStreamManager_requestChunks(chunks,
-                                                               callback) {
+    _requestChunks: function ChunkedStreamManager_requestChunks(chunks) {
       var requestId = this.currRequestId++;
 
       var chunksNeeded;
@@ -2209,13 +2213,11 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
       }
 
       if (isEmptyObj(chunksNeeded)) {
-        if (callback) {
-          callback();
-        }
-        return;
+        return Promise.resolve();
       }
 
-      this.callbacksByRequest[requestId] = callback;
+      var capability = createPromiseCapability();
+      this.promisesByRequest[requestId] = capability;
 
       var chunksToRequest = [];
       for (var chunk in chunksNeeded) {
@@ -2228,7 +2230,7 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
       }
 
       if (!chunksToRequest.length) {
-        return;
+        return capability.promise;
       }
 
       var groupedChunksToRequest = this.groupChunks(chunksToRequest);
@@ -2239,6 +2241,8 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
         var end = Math.min(groupedChunk.endChunk * this.chunkSize, this.length);
         this.sendRequest(begin, end);
       }
+
+      return capability.promise;
     },
 
     getStream: function ChunkedStreamManager_getStream() {
@@ -2246,8 +2250,7 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
     },
 
     // Loads any chunks in the requested range that are not yet loaded
-    requestRange: function ChunkedStreamManager_requestRange(
-                      begin, end, callback) {
+    requestRange: function ChunkedStreamManager_requestRange(begin, end) {
 
       end = Math.min(end, this.length);
 
@@ -2259,11 +2262,10 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
         chunks.push(chunk);
       }
 
-      this.requestChunks(chunks, callback);
+      return this._requestChunks(chunks);
     },
 
-    requestRanges: function ChunkedStreamManager_requestRanges(ranges,
-                                                               callback) {
+    requestRanges: function ChunkedStreamManager_requestRanges(ranges) {
       ranges = ranges || [];
       var chunksToRequest = [];
 
@@ -2278,7 +2280,7 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
       }
 
       chunksToRequest.sort(function(a, b) { return a - b; });
-      this.requestChunks(chunksToRequest, callback);
+      return this._requestChunks(chunksToRequest);
     },
 
     // Groups a sorted array of chunks into as few contiguous larger
@@ -2377,17 +2379,15 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
           nextEmptyChunk = this.stream.nextEmptyChunk(endChunk);
         }
         if (isInt(nextEmptyChunk)) {
-          this.requestChunks([nextEmptyChunk]);
+          this._requestChunks([nextEmptyChunk]);
         }
       }
 
       for (i = 0; i < loadedRequests.length; ++i) {
         requestId = loadedRequests[i];
-        var callback = this.callbacksByRequest[requestId];
-        delete this.callbacksByRequest[requestId];
-        if (callback) {
-          callback();
-        }
+        var capability = this.promisesByRequest[requestId];
+        delete this.promisesByRequest[requestId];
+        capability.resolve();
       }
 
       this.msgHandler.send('DocProgress', {
@@ -2408,6 +2408,16 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
     getEndChunk: function ChunkedStreamManager_getEndChunk(end) {
       var chunk = Math.floor((end - 1) / this.chunkSize) + 1;
       return chunk;
+    },
+
+    abort: function ChunkedStreamManager_abort() {
+      if (this.networkManager) {
+        this.networkManager.abortAllRequests();
+      }
+      for(var requestId in this.promisesByRequest) {
+        var capability = this.promisesByRequest[requestId];
+        capability.reject(new Error('Request was aborted'));
+      }
     }
   };
 
@@ -2579,7 +2589,8 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
             reject(e);
             return;
           }
-          pdfManager.streamManager.requestRange(e.begin, e.end, ensureHelper);
+          pdfManager.streamManager.requestRange(e.begin, e.end).
+            then(ensureHelper, reject);
         }
       }
 
@@ -2589,11 +2600,7 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
 
   NetworkPdfManager.prototype.requestRange =
       function NetworkPdfManager_requestRange(begin, end) {
-    return new Promise(function (resolve) {
-      this.streamManager.requestRange(begin, end, function() {
-        resolve();
-      });
-    }.bind(this));
+    return this.streamManager.requestRange(begin, end);
   };
 
   NetworkPdfManager.prototype.requestLoadedStream =
@@ -2613,7 +2620,7 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
 
   NetworkPdfManager.prototype.terminate =
       function NetworkPdfManager_terminate() {
-    this.streamManager.networkManager.abortAllRequests();
+    this.streamManager.abort();
   };
 
   return NetworkPdfManager;
@@ -2758,7 +2765,7 @@ var Page = (function PageClosure() {
       }.bind(this));
     },
 
-    getOperatorList: function Page_getOperatorList(handler, intent) {
+    getOperatorList: function Page_getOperatorList(handler, task, intent) {
       var self = this;
 
       var pdfManager = this.pdfManager;
@@ -2791,8 +2798,8 @@ var Page = (function PageClosure() {
           pageIndex: self.pageIndex,
           intent: intent
         });
-        return partialEvaluator.getOperatorList(contentStream, self.resources,
-          opList).then(function () {
+        return partialEvaluator.getOperatorList(contentStream, task,
+          self.resources, opList).then(function () {
             return opList;
           });
       });
@@ -2809,7 +2816,7 @@ var Page = (function PageClosure() {
         }
 
         var annotationsReadyPromise = Annotation.appendToOperatorList(
-          annotations, pageOpList, pdfManager, partialEvaluator, intent);
+          annotations, pageOpList, pdfManager, partialEvaluator, task, intent);
         return annotationsReadyPromise.then(function () {
           pageOpList.flush(true);
           return pageOpList;
@@ -2817,7 +2824,7 @@ var Page = (function PageClosure() {
       });
     },
 
-    extractTextContent: function Page_extractTextContent() {
+    extractTextContent: function Page_extractTextContent(task) {
       var handler = {
         on: function nullHandlerOn() {},
         send: function nullHandlerSend() {}
@@ -2846,6 +2853,7 @@ var Page = (function PageClosure() {
                                                     self.fontCache);
 
         return partialEvaluator.getTextContent(contentStream,
+                                               task,
                                                self.resources);
       });
     },
@@ -4498,9 +4506,9 @@ var XRef = (function XRefClosure() {
           resolve(xref.fetch(ref, suppressEncryption));
         } catch (e) {
           if (e instanceof MissingDataException) {
-            streamManager.requestRange(e.begin, e.end, function () {
+            streamManager.requestRange(e.begin, e.end).then(function () {
               tryFetch(resolve, reject);
-            });
+            }, reject);
             return;
           }
           reject(e);
@@ -4776,6 +4784,7 @@ var ObjectLoader = (function() {
     this.keys = keys;
     this.xref = xref;
     this.refSet = null;
+    this.capability = null;
   }
 
   ObjectLoader.prototype = {
@@ -4796,11 +4805,11 @@ var ObjectLoader = (function() {
         nodesToVisit.push(this.obj[keys[i]]);
       }
 
-      this.walk(nodesToVisit);
+      this._walk(nodesToVisit);
       return this.capability.promise;
     },
 
-    walk: function ObjectLoader_walk(nodesToVisit) {
+    _walk: function ObjectLoader_walk(nodesToVisit) {
       var nodesToRevisit = [];
       var pendingRequests = [];
       // DFS walk of the object graph.
@@ -4847,7 +4856,7 @@ var ObjectLoader = (function() {
       }
 
       if (pendingRequests.length) {
-        this.xref.stream.manager.requestRanges(pendingRequests,
+        this.xref.stream.manager.requestRanges(pendingRequests).then(
             function pendingRequestCallback() {
           nodesToVisit = nodesToRevisit;
           for (var i = 0; i < nodesToRevisit.length; i++) {
@@ -4858,8 +4867,8 @@ var ObjectLoader = (function() {
               this.refSet.remove(node);
             }
           }
-          this.walk(nodesToVisit);
-        }.bind(this));
+          this._walk(nodesToVisit);
+        }.bind(this), this.capability.reject);
         return;
       }
       // Everything is loaded.
@@ -5233,7 +5242,7 @@ var Annotation = (function AnnotationClosure() {
       }.bind(this));
     },
 
-    getOperatorList: function Annotation_getOperatorList(evaluator) {
+    getOperatorList: function Annotation_getOperatorList(evaluator, task) {
 
       if (!this.appearance) {
         return Promise.resolve(new OperatorList());
@@ -5260,7 +5269,8 @@ var Annotation = (function AnnotationClosure() {
       return resourcesPromise.then(function(resources) {
           var opList = new OperatorList();
           opList.addOp(OPS.beginAnnotation, [data.rect, transform, matrix]);
-          return evaluator.getOperatorList(self.appearance, resources, opList).
+          return evaluator.getOperatorList(self.appearance, task,
+                                           resources, opList).
             then(function () {
               opList.addOp(OPS.endAnnotation, []);
               self.appearance.reset();
@@ -5271,7 +5281,7 @@ var Annotation = (function AnnotationClosure() {
   };
 
   Annotation.appendToOperatorList = function Annotation_appendToOperatorList(
-      annotations, opList, pdfManager, partialEvaluator, intent) {
+      annotations, opList, pdfManager, partialEvaluator, task, intent) {
 
     function reject(e) {
       annotationsReadyCapability.reject(e);
@@ -5284,7 +5294,7 @@ var Annotation = (function AnnotationClosure() {
       if (intent === 'display' && annotations[i].isViewable() ||
           intent === 'print' && annotations[i].isPrintable()) {
         annotationPromises.push(
-          annotations[i].getOperatorList(partialEvaluator));
+          annotations[i].getOperatorList(partialEvaluator, task));
       }
     }
     Promise.all(annotationPromises).then(function(datas) {
@@ -5516,9 +5526,10 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
   }
 
   Util.inherit(TextWidgetAnnotation, WidgetAnnotation, {
-    getOperatorList: function TextWidgetAnnotation_getOperatorList(evaluator) {
+    getOperatorList: function TextWidgetAnnotation_getOperatorList(evaluator,
+                                                                   task) {
       if (this.appearance) {
-        return Annotation.prototype.getOperatorList.call(this, evaluator);
+        return Annotation.prototype.getOperatorList.call(this, evaluator, task);
       }
 
       var opList = new OperatorList();
@@ -5531,7 +5542,8 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
       }
 
       var stream = new Stream(stringToBytes(data.defaultAppearance));
-      return evaluator.getOperatorList(stream, this.fieldResources, opList).
+      return evaluator.getOperatorList(stream, task,
+                                       this.fieldResources, opList).
         then(function () {
           return opList;
         });
@@ -10919,6 +10931,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
     buildFormXObject: function PartialEvaluator_buildFormXObject(resources,
                                                                  xobj, smask,
                                                                  operatorList,
+                                                                 task,
                                                                  initialState) {
       var matrix = xobj.dict.getArray('Matrix');
       var bbox = xobj.dict.getArray('BBox');
@@ -10951,7 +10964,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
 
       operatorList.addOp(OPS.paintFormXObjectBegin, [matrix, bbox]);
 
-      return this.getOperatorList(xobj,
+      return this.getOperatorList(xobj, task,
         (xobj.dict.get('Resources') || resources), operatorList, initialState).
         then(function () {
           operatorList.addOp(OPS.paintFormXObjectEnd, []);
@@ -11063,7 +11076,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
     },
 
     handleSMask: function PartialEvaluator_handleSmask(smask, resources,
-                                                       operatorList,
+                                                       operatorList, task,
                                                        stateManager) {
       var smaskContent = smask.get('G');
       var smaskOptions = {
@@ -11071,13 +11084,13 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         backdrop: smask.get('BC')
       };
       return this.buildFormXObject(resources, smaskContent, smaskOptions,
-                            operatorList, stateManager.state.clone());
+                            operatorList, task, stateManager.state.clone());
     },
 
     handleTilingType:
         function PartialEvaluator_handleTilingType(fn, args, resources,
                                                    pattern, patternDict,
-                                                   operatorList) {
+                                                   operatorList, task) {
       // Create an IR of the pattern code.
       var tilingOpList = new OperatorList();
       // Merge the available resources, to prevent issues when the patternDict
@@ -11085,8 +11098,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       var resourcesArray = [patternDict.get('Resources'), resources];
       var patternResources = Dict.merge(this.xref, resourcesArray);
 
-      return this.getOperatorList(pattern, patternResources, tilingOpList).then(
-        function () {
+      return this.getOperatorList(pattern, task, patternResources,
+                                  tilingOpList).then(function () {
           // Add the dependencies to the parent operator list so they are
           // resolved before sub operator list is executed synchronously.
           operatorList.addDependencies(tilingOpList.dependencies);
@@ -11099,7 +11112,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
 
     handleSetFont:
         function PartialEvaluator_handleSetFont(resources, fontArgs, fontRef,
-                                                operatorList, state) {
+                                                operatorList, task, state) {
       // TODO(mack): Not needed?
       var fontName;
       if (fontArgs) {
@@ -11113,8 +11126,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         if (!translated.font.isType3Font) {
           return translated;
         }
-        return translated.loadType3Data(self, resources, operatorList).then(
-            function () {
+        return translated.loadType3Data(self, resources, operatorList, task).
+          then(function () {
           return translated;
         });
       }).then(function (translated) {
@@ -11161,8 +11174,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
     },
 
     setGState: function PartialEvaluator_setGState(resources, gState,
-                                                   operatorList, xref,
-                                                   stateManager) {
+                                                   operatorList, task,
+                                                   xref, stateManager) {
       // This array holds the converted/processed state data.
       var gStateObj = [];
       var gStateMap = gState.map;
@@ -11186,8 +11199,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
             break;
           case 'Font':
             promise = promise.then(function () {
-              return self.handleSetFont(resources, null, value[0],
-                                        operatorList, stateManager.state).
+              return self.handleSetFont(resources, null, value[0], operatorList,
+                                        task, stateManager.state).
                 then(function (loadedName) {
                   operatorList.addDependency(loadedName);
                   gStateObj.push([key, [loadedName, value[1]]]);
@@ -11206,7 +11219,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
             if (isDict(dict)) {
               promise = promise.then(function () {
                 return self.handleSMask(dict, resources, operatorList,
-                                        stateManager);
+                                        task, stateManager);
               });
               gStateObj.push([key, true]);
             } else {
@@ -11387,7 +11400,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
     },
 
     handleColorN: function PartialEvaluator_handleColorN(operatorList, fn, args,
-          cs, patterns, resources, xref) {
+          cs, patterns, resources, task, xref) {
       // compile tiling patterns
       var patternName = args[args.length - 1];
       // SCN/scn applies patterns along with normal colors
@@ -11400,7 +11413,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         if (typeNum === TILING_PATTERN) {
           var color = cs.base ? cs.base.getRgb(args, 0) : null;
           return this.handleTilingType(fn, color, resources, pattern,
-                                       dict, operatorList);
+                                       dict, operatorList, task);
         } else if (typeNum === SHADING_PATTERN) {
           var shading = dict.get('Shading');
           var matrix = dict.get('Matrix');
@@ -11417,6 +11430,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
     },
 
     getOperatorList: function PartialEvaluator_getOperatorList(stream,
+                                                               task,
                                                                resources,
                                                                operatorList,
                                                                initialState) {
@@ -11435,6 +11449,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       var timeSlotManager = new TimeSlotManager();
 
       return new Promise(function next(resolve, reject) {
+        task.ensureNotTerminated();
         timeSlotManager.reset();
         var stop, operation = {}, i, ii, cs;
         while (!(stop = timeSlotManager.check())) {
@@ -11477,7 +11492,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
                 if (type.name === 'Form') {
                   stateManager.save();
                   return self.buildFormXObject(resources, xobj, null,
-                                               operatorList,
+                                               operatorList, task,
                                                stateManager.state.clone()).
                     then(function () {
                       stateManager.restore();
@@ -11501,8 +11516,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
             case OPS.setFont:
               var fontSize = args[1];
               // eagerly collect all fonts
-              return self.handleSetFont(resources, args, null,
-                                        operatorList, stateManager.state).
+              return self.handleSetFont(resources, args, null, operatorList,
+                                        task, stateManager.state).
                 then(function (loadedName) {
                   operatorList.addDependency(loadedName);
                   operatorList.addOp(OPS.setFont, [loadedName, fontSize]);
@@ -11608,7 +11623,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
               cs = stateManager.state.fillColorSpace;
               if (cs.name === 'Pattern') {
                 return self.handleColorN(operatorList, OPS.setFillColorN,
-                  args, cs, patterns, resources, xref).then(function() {
+                  args, cs, patterns, resources, task, xref).then(function() {
                     next(resolve, reject);
                   }, reject);
               }
@@ -11619,7 +11634,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
               cs = stateManager.state.strokeColorSpace;
               if (cs.name === 'Pattern') {
                 return self.handleColorN(operatorList, OPS.setStrokeColorN,
-                  args, cs, patterns, resources, xref).then(function() {
+                  args, cs, patterns, resources, task, xref).then(function() {
                     next(resolve, reject);
                   }, reject);
               }
@@ -11653,8 +11668,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
               }
 
               var gState = extGState.get(dictName.name);
-              return self.setGState(resources, gState, operatorList, xref,
-                stateManager).then(function() {
+              return self.setGState(resources, gState, operatorList, task,
+                xref, stateManager).then(function() {
                   next(resolve, reject);
                 }, reject);
             case OPS.moveTo:
@@ -11692,7 +11707,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         if (stop) {
           deferred.then(function () {
             next(resolve, reject);
-          });
+          }, reject);
           return;
         }
         // Some PDFs don't close all restores inside object/form.
@@ -11704,7 +11719,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       });
     },
 
-    getTextContent: function PartialEvaluator_getTextContent(stream, resources,
+    getTextContent: function PartialEvaluator_getTextContent(stream, task,
+                                                             resources,
                                                              stateManager) {
 
       stateManager = (stateManager || new StateManager(new TextState()));
@@ -11882,6 +11898,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       var timeSlotManager = new TimeSlotManager();
 
       return new Promise(function next(resolve, reject) {
+        task.ensureNotTerminated();
         timeSlotManager.reset();
         var stop, operation = {}, args = [];
         while (!(stop = timeSlotManager.check())) {
@@ -12037,7 +12054,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
                 stateManager.transform(matrix);
               }
 
-              return self.getTextContent(xobj,
+              return self.getTextContent(xobj, task,
                 xobj.dict.get('Resources') || resources, stateManager).
                 then(function (formTextContent) {
                   Util.appendToArray(bidiTexts, formTextContent.items);
@@ -12077,7 +12094,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         if (stop) {
           deferred.then(function () {
             next(resolve, reject);
-          });
+          }, reject);
           return;
         }
         resolve(textContent);
@@ -12642,7 +12659,7 @@ var TranslatedFont = (function TranslatedFontClosure() {
       ]);
       this.sent = true;
     },
-    loadType3Data: function (evaluator, resources, parentOperatorList) {
+    loadType3Data: function (evaluator, resources, parentOperatorList, task) {
       assert(this.font.isType3Font);
 
       if (this.type3Loaded) {
@@ -12659,7 +12676,7 @@ var TranslatedFont = (function TranslatedFontClosure() {
         loadCharProcsPromise = loadCharProcsPromise.then(function (key) {
           var glyphStream = charProcs[key];
           var operatorList = new OperatorList();
-          return evaluator.getOperatorList(glyphStream, fontResources,
+          return evaluator.getOperatorList(glyphStream, task, fontResources,
                                            operatorList).then(function () {
             charProcOperatorList[key] = operatorList.getIR();
 
@@ -34222,9 +34239,58 @@ var NullStream = (function NullStreamClosure() {
 })();
 
 
+var WorkerTask = (function WorkerTaskClosure() {
+  function WorkerTask(name) {
+    this.name = name;
+    this.terminated = false;
+    this._capability = createPromiseCapability();
+  }
+
+  WorkerTask.prototype = {
+    get finished() {
+      return this._capability.promise;
+    },
+
+    finish: function () {
+      this._capability.resolve();
+    },
+
+    terminate: function () {
+      this.terminated = true;
+    },
+
+    ensureNotTerminated: function () {
+      if (this.terminated) {
+        throw new Error('Worker task was terminated');
+      }
+    }
+  };
+
+  return WorkerTask;
+})();
+
 var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
   setup: function wphSetup(handler) {
     var pdfManager;
+    var terminated = false;
+    var cancelXHRs = null;
+    var WorkerTasks = [];
+
+    function ensureNotTerminated() {
+      if (terminated) {
+        throw new Error('Worker was terminated');
+      }
+    }
+
+    function startWorkerTask(task) {
+      WorkerTasks.push(task);
+    }
+
+    function finishWorkerTask(task) {
+      task.finish();
+      var i = WorkerTasks.indexOf(task);
+      WorkerTasks.splice(i, 1);
+    }
 
     function loadDocument(recoveryMode) {
       var loadDocumentCapability = createPromiseCapability();
@@ -34261,13 +34327,14 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
 
     function getPdfManager(data) {
       var pdfManagerCapability = createPromiseCapability();
+      var pdfManager;
 
       var source = data.source;
       var disableRange = data.disableRange;
       if (source.data) {
         try {
           pdfManager = new LocalPdfManager(source.data, source.password);
-          pdfManagerCapability.resolve();
+          pdfManagerCapability.resolve(pdfManager);
         } catch (ex) {
           pdfManagerCapability.reject(ex);
         }
@@ -34275,7 +34342,7 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
       } else if (source.chunkedViewerLoading) {
         try {
           pdfManager = new NetworkPdfManager(source, handler);
-          pdfManagerCapability.resolve();
+          pdfManagerCapability.resolve(pdfManager);
         } catch (ex) {
           pdfManagerCapability.reject(ex);
         }
@@ -34336,6 +34403,7 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
           } catch (ex) {
             pdfManagerCapability.reject(ex);
           }
+          cancelXHRs = null;
         },
 
         onProgressiveData: source.disableStream ? null :
@@ -34376,10 +34444,11 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
           // the data is array, instantiating directly from it
           try {
             pdfManager = new LocalPdfManager(pdfFile, source.password);
-            pdfManagerCapability.resolve();
+            pdfManagerCapability.resolve(pdfManager);
           } catch (ex) {
             pdfManagerCapability.reject(ex);
           }
+          cancelXHRs = null;
         },
 
         onError: function onError(status) {
@@ -34394,6 +34463,7 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
               ') while retrieving PDF "' + source.url + '".', status);
             handler.send('UnexpectedResponse', exception);
           }
+          cancelXHRs = null;
         },
 
         onProgress: function onProgress(evt) {
@@ -34404,6 +34474,10 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
         }
       });
 
+      cancelXHRs = function () {
+        networkManager.abortRequest(fullRequestXhrId);
+      };
+
       return pdfManagerCapability.promise;
     }
 
@@ -34436,8 +34510,8 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
     });
 
     handler.on('GetDocRequest', function wphSetupDoc(data) {
-
       var onSuccess = function(doc) {
+        ensureNotTerminated();
         handler.send('GetDoc', { pdfInfo: doc });
       };
 
@@ -34460,6 +34534,8 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
         }
       };
 
+      ensureNotTerminated();
+
       PDFJS.maxImageSize = data.maxImageSize === undefined ?
                            -1 : data.maxImageSize;
       PDFJS.disableFontFace = data.disableFontFace;
@@ -34469,13 +34545,26 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
                            null : data.cMapUrl;
       PDFJS.cMapPacked = data.cMapPacked === true;
 
-      getPdfManager(data).then(function () {
+      getPdfManager(data).then(function (newPdfManager) {
+        if (terminated) {
+          // We were in a process of setting up the manager, but it got
+          // terminated in the middle.
+          newPdfManager.terminate();
+          throw new Error('Worker was terminated');
+        }
+
+        pdfManager = newPdfManager;
+
         handler.send('PDFManagerReady', null);
         pdfManager.onLoadedStream().then(function(stream) {
           handler.send('DataLoaded', { length: stream.bytes.byteLength });
         });
       }).then(function pdfManagerReady() {
+        ensureNotTerminated();
+
         loadDocument(false).then(onSuccess, function loadFailure(ex) {
+          ensureNotTerminated();
+
           // Try again with recoveryMode == true
           if (!(ex instanceof XRefParseException)) {
             if (ex instanceof PasswordException) {
@@ -34490,6 +34579,8 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
 
           pdfManager.requestLoadedStream();
           pdfManager.onLoadedStream().then(function() {
+            ensureNotTerminated();
+
             loadDocument(true).then(onSuccess, onFailure);
           });
         }, onFailure);
@@ -34580,17 +34671,25 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
     });
 
     handler.on('RenderPageRequest', function wphSetupRenderPage(data) {
-      pdfManager.getPage(data.pageIndex).then(function(page) {
+      var pageIndex = data.pageIndex;
+      pdfManager.getPage(pageIndex).then(function(page) {
+        var task = new WorkerTask('RenderPageRequest: page ' + pageIndex);
+        startWorkerTask(task);
 
-        var pageNum = data.pageIndex + 1;
+        var pageNum = pageIndex + 1;
         var start = Date.now();
         // Pre compile the pdf page and fetch the fonts/images.
-        page.getOperatorList(handler, data.intent).then(function(operatorList) {
+        page.getOperatorList(handler, task, data.intent).then(
+            function(operatorList) {
+          finishWorkerTask(task);
 
           info('page=' + pageNum + ' - getOperatorList: time=' +
                (Date.now() - start) + 'ms, len=' + operatorList.fnArray.length);
-
         }, function(e) {
+          finishWorkerTask(task);
+          if (task.terminated) {
+            return; // ignoring errors from the terminated thread
+          }
 
           var minimumStackMessage =
             'worker.js: while trying to getPage() and getOperatorList()';
@@ -34625,13 +34724,23 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
     }, this);
 
     handler.on('GetTextContent', function wphExtractText(data) {
-      return pdfManager.getPage(data.pageIndex).then(function(page) {
-        var pageNum = data.pageIndex + 1;
+      var pageIndex = data.pageIndex;
+      return pdfManager.getPage(pageIndex).then(function(page) {
+        var task = new WorkerTask('GetTextContent: page ' + pageIndex);
+        startWorkerTask(task);
+        var pageNum = pageIndex + 1;
         var start = Date.now();
-        return page.extractTextContent().then(function(textContent) {
+        return page.extractTextContent(task).then(function(textContent) {
+          finishWorkerTask(task);
           info('text indexing: page=' + pageNum + ' - time=' +
                (Date.now() - start) + 'ms');
           return textContent;
+        }, function (reason) {
+          finishWorkerTask(task);
+          if (task.terminated) {
+            return; // ignoring errors from the terminated thread
+          }
+          throw reason;
         });
       });
     });
@@ -34641,7 +34750,22 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
     });
 
     handler.on('Terminate', function wphTerminate(data) {
-      pdfManager.terminate();
+      terminated = true;
+      if (pdfManager) {
+        pdfManager.terminate();
+        pdfManager = null;
+      }
+      if (cancelXHRs) {
+        cancelXHRs();
+      }
+
+      var waitOn = [];
+      WorkerTasks.forEach(function (task) {
+        waitOn.push(task.finished);
+        task.terminate();
+      });
+
+      return Promise.all(waitOn).then(function () {});
     });
   }
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.1.546",
+  "version": "1.1.551",
   "description": "Generic build of Mozilla's PDF.js library.",
   "keywords": [
     "Mozilla",

web/pdf_viewer.js

@@ -972,7 +972,7 @@ var PDFPageView = (function PDFPageViewClosure() {
       this.zoomLayer = null;
       this.reset();
       if (this.pdfPage) {
-        this.pdfPage.destroy();
+        this.pdfPage.cleanup();
       }
     },
 
@@ -1317,9 +1317,9 @@ var PDFPageView = (function PDFPageViewClosure() {
         canvasContext: ctx,
         viewport: this.viewport,
         // intent: 'default', // === 'display'
-        continueCallback: renderContinueCallback
       };
       var renderTask = this.renderTask = this.pdfPage.render(renderContext);
+      renderTask.onContinue = renderContinueCallback;
 
       this.renderTask.promise.then(
         function pdfPageRenderCallback() {