Fire window.onerror for uncaught IndexedDB errors

third_party/WebKit/Source/modules/indexeddb/IDBRequest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "modules/indexeddb/IDBRequest.h"
 
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/SourceLocation.h"
 #include "bindings/modules/v8/ToV8ForModules.h"
 #include "bindings/modules/v8/V8BindingForModules.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
+#include "core/events/ErrorEvent.h"
 #include "core/events/EventQueue.h"
 #include "modules/IndexedDBNames.h"
 #include "modules/indexeddb/IDBCursorWithValue.h"
 #include "modules/indexeddb/IDBDatabase.h"
 #include "modules/indexeddb/IDBEventDispatcher.h"
 #include "modules/indexeddb/IDBTracing.h"
 #include "modules/indexeddb/IDBValue.h"
 #include "modules/indexeddb/WebIDBCallbacksImpl.h"
 #include "platform/SharedBuffer.h"
 #include "public/platform/WebBlobInfo.h"
@@ skipping 13 matching lines @@
   if (transaction)
     transaction->registerRequest(request);
   return request;
 }
 
 IDBRequest::IDBRequest(ScriptState* scriptState,
                        IDBAny* source,
                        IDBTransaction* transaction)
     : SuspendableObject(scriptState->getExecutionContext()),
       m_transaction(transaction),
-      m_source(source) {}
+      m_source(source),
+      m_creationSource(SourceLocation::capture()) {}
 
 IDBRequest::~IDBRequest() {
   DCHECK(m_readyState == DONE || m_readyState == EarlyDeath ||
          !getExecutionContext());
 }
 
 DEFINE_TRACE(IDBRequest) {
   visitor->trace(m_transaction);
   visitor->trace(m_source);
   visitor->trace(m_result);
@@ skipping 415 matching lines @@
   }
 
   if (cursorToNotify)
     cursorToNotify->postSuccessHandlerCallback();
 
   // An upgradeneeded event will always be followed by a success or error event,
   // so must be kept alive.
   if (m_readyState == DONE && event->type() != EventTypeNames::upgradeneeded)
     m_hasPendingActivity = false;
 
+  // Fire window.onerror (or the equivalent for workers) for errors that were
+  // not prevented.
+  if (!m_preventPropagation && event->type() == EventTypeNames::error &&
+      dispatchResult == DispatchEventResult::NotCanceled && m_creationSource) {
+    // TODO: This nulls out m_creationSource; when IDBCursor::continue() or
+    // IDBCursor::advance() is called we should re-capture.
+    // TODO: Check Firefox behavior here and add test for continue()!
+    getExecutionContext()->dispatchErrorEvent(
+        ErrorEvent::create(m_error->toStringForConsole(),
+                           std::move(m_creationSource), nullptr),
+        NotSharableCrossOrigin);
+  }
+
   return dispatchResult;
 }
 
 void IDBRequest::uncaughtExceptionInEventHandler() {
   if (m_transaction && !m_requestAborted) {
     m_transaction->setError(DOMException::create(
         AbortError, "Uncaught exception in event handler."));
     m_transaction->abort(IGNORE_EXCEPTION_FOR_TESTING);
   }
 }
@@ skipping 33 matching lines @@
 }
 
 void IDBRequest::dequeueEvent(Event* event) {
   for (size_t i = 0; i < m_enqueuedEvents.size(); ++i) {
     if (m_enqueuedEvents[i].get() == event)
       m_enqueuedEvents.remove(i);
   }
 }
 
 }  // namespace blink