dom/indexedDB/ipc/IndexedDBParent.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/indexedDB/ipc/IndexedDBParent.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,2258 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +
     1.9 +#include "IndexedDBParent.h"
    1.10 +
    1.11 +#include "nsIDOMEvent.h"
    1.12 +#include "nsIDOMFile.h"
    1.13 +#include "nsIXPConnect.h"
    1.14 +
    1.15 +#include "mozilla/AppProcessChecker.h"
    1.16 +#include "mozilla/Assertions.h"
    1.17 +#include "mozilla/Attributes.h"
    1.18 +#include "mozilla/dom/ContentParent.h"
    1.19 +#include "mozilla/dom/IDBDatabaseBinding.h"
    1.20 +#include "mozilla/dom/ipc/Blob.h"
    1.21 +#include "mozilla/dom/TabParent.h"
    1.22 +#include "mozilla/unused.h"
    1.23 +#include "nsCxPusher.h"
    1.24 +
    1.25 +#include "AsyncConnectionHelper.h"
    1.26 +#include "DatabaseInfo.h"
    1.27 +#include "IDBDatabase.h"
    1.28 +#include "IDBEvents.h"
    1.29 +#include "IDBFactory.h"
    1.30 +#include "IDBIndex.h"
    1.31 +#include "IDBKeyRange.h"
    1.32 +#include "IDBObjectStore.h"
    1.33 +#include "IDBTransaction.h"
    1.34 +
    1.35 +#define CHROME_ORIGIN "chrome"
    1.36 +#define PERMISSION_PREFIX "indexedDB-chrome-"
    1.37 +#define PERMISSION_SUFFIX_READ "-read"
    1.38 +#define PERMISSION_SUFFIX_WRITE "-write"
    1.39 +
    1.40 +USING_INDEXEDDB_NAMESPACE
    1.41 +
    1.42 +using namespace mozilla;
    1.43 +using namespace mozilla::dom;
    1.44 +
    1.45 +/*******************************************************************************
    1.46 + * AutoSetCurrentTransaction
    1.47 + ******************************************************************************/
    1.48 +
    1.49 +AutoSetCurrentTransaction::AutoSetCurrentTransaction(
    1.50 +                                                   IDBTransaction* aTransaction)
    1.51 +{
    1.52 +  MOZ_ASSERT(aTransaction);
    1.53 +  AsyncConnectionHelper::SetCurrentTransaction(aTransaction);
    1.54 +}
    1.55 +
    1.56 +AutoSetCurrentTransaction::~AutoSetCurrentTransaction()
    1.57 +{
    1.58 +  AsyncConnectionHelper::SetCurrentTransaction(nullptr);
    1.59 +}
    1.60 +
    1.61 +/*******************************************************************************
    1.62 + * IndexedDBParent
    1.63 + ******************************************************************************/
    1.64 +
    1.65 +IndexedDBParent::IndexedDBParent(ContentParent* aContentParent)
    1.66 +: mManagerContent(aContentParent), mManagerTab(nullptr), mDisconnected(false)
    1.67 +{
    1.68 +  MOZ_COUNT_CTOR(IndexedDBParent);
    1.69 +  MOZ_ASSERT(aContentParent);
    1.70 +}
    1.71 +
    1.72 +IndexedDBParent::IndexedDBParent(TabParent* aTabParent)
    1.73 +: mManagerContent(nullptr), mManagerTab(aTabParent), mDisconnected(false)
    1.74 +{
    1.75 +  MOZ_COUNT_CTOR(IndexedDBParent);
    1.76 +  MOZ_ASSERT(aTabParent);
    1.77 +}
    1.78 +
    1.79 +IndexedDBParent::~IndexedDBParent()
    1.80 +{
    1.81 +  MOZ_COUNT_DTOR(IndexedDBParent);
    1.82 +}
    1.83 +
    1.84 +void
    1.85 +IndexedDBParent::Disconnect()
    1.86 +{
    1.87 +  if (mDisconnected) {
    1.88 +    return;
    1.89 +  }
    1.90 +
    1.91 +  mDisconnected = true;
    1.92 +
    1.93 +  const InfallibleTArray<PIndexedDBDatabaseParent*>& databases =
    1.94 +    ManagedPIndexedDBDatabaseParent();
    1.95 +  for (uint32_t i = 0; i < databases.Length(); ++i) {
    1.96 +    static_cast<IndexedDBDatabaseParent*>(databases[i])->Disconnect();
    1.97 +  }
    1.98 +}
    1.99 +
   1.100 +bool
   1.101 +IndexedDBParent::CheckReadPermission(const nsAString& aDatabaseName)
   1.102 +{
   1.103 +  NS_NAMED_LITERAL_CSTRING(permission, PERMISSION_SUFFIX_READ);
   1.104 +  return CheckPermissionInternal(aDatabaseName, permission);
   1.105 +}
   1.106 +
   1.107 +bool
   1.108 +IndexedDBParent::CheckWritePermission(const nsAString& aDatabaseName)
   1.109 +{
   1.110 +  // Write permission assumes read permission is granted as well.
   1.111 +  MOZ_ASSERT(CheckReadPermission(aDatabaseName));
   1.112 +
   1.113 +  NS_NAMED_LITERAL_CSTRING(permission, PERMISSION_SUFFIX_WRITE);
   1.114 +  return CheckPermissionInternal(aDatabaseName, permission);
   1.115 +}
   1.116 +
   1.117 +mozilla::ipc::IProtocol*
   1.118 +IndexedDBParent::CloneProtocol(Channel* aChannel,
   1.119 +                               mozilla::ipc::ProtocolCloneContext* aCtx)
   1.120 +{
   1.121 +  MOZ_ASSERT(mManagerContent != nullptr);
   1.122 +  MOZ_ASSERT(mManagerTab == nullptr);
   1.123 +  MOZ_ASSERT(!mDisconnected);
   1.124 +  MOZ_ASSERT(IndexedDatabaseManager::Get());
   1.125 +  MOZ_ASSERT(IndexedDatabaseManager::IsMainProcess());
   1.126 +
   1.127 +  ContentParent* contentParent = aCtx->GetContentParent();
   1.128 +  nsAutoPtr<PIndexedDBParent> actor(contentParent->AllocPIndexedDBParent());
   1.129 +  if (!actor || !contentParent->RecvPIndexedDBConstructor(actor)) {
   1.130 +    return nullptr;
   1.131 +  }
   1.132 +  return actor.forget();
   1.133 +}
   1.134 +
   1.135 +bool
   1.136 +IndexedDBParent::CheckPermissionInternal(const nsAString& aDatabaseName,
   1.137 +                                         const nsACString& aPermission)
   1.138 +{
   1.139 +  MOZ_ASSERT(!mASCIIOrigin.IsEmpty());
   1.140 +  MOZ_ASSERT(mManagerContent || mManagerTab);
   1.141 +
   1.142 +  if (mASCIIOrigin.EqualsLiteral(CHROME_ORIGIN)) {
   1.143 +    nsAutoCString fullPermission =
   1.144 +      NS_LITERAL_CSTRING(PERMISSION_PREFIX) +
   1.145 +      NS_ConvertUTF16toUTF8(aDatabaseName) +
   1.146 +      aPermission;
   1.147 +
   1.148 +    if ((mManagerContent &&
   1.149 +         !AssertAppProcessPermission(mManagerContent, fullPermission.get())) ||
   1.150 +        (mManagerTab &&
   1.151 +         !AssertAppProcessPermission(mManagerTab, fullPermission.get()))) {
   1.152 +      return false;
   1.153 +    }
   1.154 +  }
   1.155 +
   1.156 +  return true;
   1.157 +}
   1.158 +
   1.159 +void
   1.160 +IndexedDBParent::ActorDestroy(ActorDestroyReason aWhy)
   1.161 +{
   1.162 +  // Nothing really needs to be done here...
   1.163 +}
   1.164 +
   1.165 +bool
   1.166 +IndexedDBParent::RecvPIndexedDBDatabaseConstructor(
   1.167 +                                        PIndexedDBDatabaseParent* aActor,
   1.168 +                                        const nsString& aName,
   1.169 +                                        const uint64_t& aVersion,
   1.170 +                                        const PersistenceType& aPersistenceType)
   1.171 +{
   1.172 +  if (!CheckReadPermission(aName)) {
   1.173 +    return false;
   1.174 +  }
   1.175 +
   1.176 +  if (IsDisconnected()) {
   1.177 +    // We're shutting down, ignore this request.
   1.178 +    return true;
   1.179 +  }
   1.180 +
   1.181 +  if (!mFactory) {
   1.182 +    return true;
   1.183 +  }
   1.184 +
   1.185 +  nsRefPtr<IDBOpenDBRequest> request;
   1.186 +  nsresult rv = mFactory->OpenInternal(aName, aVersion, aPersistenceType, false,
   1.187 +                                       getter_AddRefs(request));
   1.188 +  NS_ENSURE_SUCCESS(rv, false);
   1.189 +
   1.190 +  IndexedDBDatabaseParent* actor =
   1.191 +    static_cast<IndexedDBDatabaseParent*>(aActor);
   1.192 +
   1.193 +  rv = actor->SetOpenRequest(request);
   1.194 +  NS_ENSURE_SUCCESS(rv, false);
   1.195 +
   1.196 +  return true;
   1.197 +}
   1.198 +
   1.199 +bool
   1.200 +IndexedDBParent::RecvPIndexedDBDeleteDatabaseRequestConstructor(
   1.201 +                                  PIndexedDBDeleteDatabaseRequestParent* aActor,
   1.202 +                                  const nsString& aName,
   1.203 +                                  const PersistenceType& aPersistenceType)
   1.204 +{
   1.205 +  if (!CheckWritePermission(aName)) {
   1.206 +    return false;
   1.207 +  }
   1.208 +
   1.209 +  if (IsDisconnected()) {
   1.210 +    // We're shutting down, ignore this request.
   1.211 +    return true;
   1.212 +  }
   1.213 +
   1.214 +  if (!mFactory) {
   1.215 +    return true;
   1.216 +  }
   1.217 +
   1.218 +  IndexedDBDeleteDatabaseRequestParent* actor =
   1.219 +    static_cast<IndexedDBDeleteDatabaseRequestParent*>(aActor);
   1.220 +
   1.221 +  nsRefPtr<IDBOpenDBRequest> request;
   1.222 +
   1.223 +  nsresult rv = mFactory->OpenInternal(aName, 0, aPersistenceType, true,
   1.224 +                                       getter_AddRefs(request));
   1.225 +  NS_ENSURE_SUCCESS(rv, false);
   1.226 +
   1.227 +  rv = actor->SetOpenRequest(request);
   1.228 +  NS_ENSURE_SUCCESS(rv, false);
   1.229 +
   1.230 +  return true;
   1.231 +}
   1.232 +
   1.233 +PIndexedDBDatabaseParent*
   1.234 +IndexedDBParent::AllocPIndexedDBDatabaseParent(
   1.235 +                                        const nsString& aName,
   1.236 +                                        const uint64_t& aVersion,
   1.237 +                                        const PersistenceType& aPersistenceType)
   1.238 +{
   1.239 +  return new IndexedDBDatabaseParent();
   1.240 +}
   1.241 +
   1.242 +bool
   1.243 +IndexedDBParent::DeallocPIndexedDBDatabaseParent(PIndexedDBDatabaseParent* aActor)
   1.244 +{
   1.245 +  delete aActor;
   1.246 +  return true;
   1.247 +}
   1.248 +
   1.249 +PIndexedDBDeleteDatabaseRequestParent*
   1.250 +IndexedDBParent::AllocPIndexedDBDeleteDatabaseRequestParent(
   1.251 +                                        const nsString& aName,
   1.252 +                                        const PersistenceType& aPersistenceType)
   1.253 +{
   1.254 +  return new IndexedDBDeleteDatabaseRequestParent(mFactory);
   1.255 +}
   1.256 +
   1.257 +bool
   1.258 +IndexedDBParent::DeallocPIndexedDBDeleteDatabaseRequestParent(
   1.259 +                                  PIndexedDBDeleteDatabaseRequestParent* aActor)
   1.260 +{
   1.261 +  delete aActor;
   1.262 +  return true;
   1.263 +}
   1.264 +
   1.265 +/*******************************************************************************
   1.266 + * IndexedDBDatabaseParent
   1.267 + ******************************************************************************/
   1.268 +
   1.269 +IndexedDBDatabaseParent::IndexedDBDatabaseParent()
   1.270 +: mEventListener(MOZ_THIS_IN_INITIALIZER_LIST())
   1.271 +{
   1.272 +  MOZ_COUNT_CTOR(IndexedDBDatabaseParent);
   1.273 +}
   1.274 +
   1.275 +IndexedDBDatabaseParent::~IndexedDBDatabaseParent()
   1.276 +{
   1.277 +  MOZ_COUNT_DTOR(IndexedDBDatabaseParent);
   1.278 +}
   1.279 +
   1.280 +nsresult
   1.281 +IndexedDBDatabaseParent::SetOpenRequest(IDBOpenDBRequest* aRequest)
   1.282 +{
   1.283 +  MOZ_ASSERT(aRequest);
   1.284 +  MOZ_ASSERT(!mOpenRequest);
   1.285 +
   1.286 +  nsresult rv = aRequest->EventTarget::AddEventListener(NS_LITERAL_STRING(SUCCESS_EVT_STR),
   1.287 +                                                        mEventListener, false);
   1.288 +  NS_ENSURE_SUCCESS(rv, rv);
   1.289 +
   1.290 +  rv = aRequest->EventTarget::AddEventListener(NS_LITERAL_STRING(ERROR_EVT_STR),
   1.291 +                                               mEventListener, false);
   1.292 +  NS_ENSURE_SUCCESS(rv, rv);
   1.293 +
   1.294 +  rv = aRequest->EventTarget::AddEventListener(NS_LITERAL_STRING(BLOCKED_EVT_STR),
   1.295 +                                               mEventListener, false);
   1.296 +  NS_ENSURE_SUCCESS(rv, rv);
   1.297 +
   1.298 +  rv = aRequest->EventTarget::AddEventListener(NS_LITERAL_STRING(UPGRADENEEDED_EVT_STR),
   1.299 +                                               mEventListener, false);
   1.300 +  NS_ENSURE_SUCCESS(rv, rv);
   1.301 +
   1.302 +  mOpenRequest = aRequest;
   1.303 +  return NS_OK;
   1.304 +}
   1.305 +
   1.306 +nsresult
   1.307 +IndexedDBDatabaseParent::HandleEvent(nsIDOMEvent* aEvent)
   1.308 +{
   1.309 +  MOZ_ASSERT(aEvent);
   1.310 +
   1.311 +  if (IsDisconnected()) {
   1.312 +    // We're shutting down, ignore this event.
   1.313 +    return NS_OK;
   1.314 +  }
   1.315 +
   1.316 +  nsString type;
   1.317 +  nsresult rv = aEvent->GetType(type);
   1.318 +  NS_ENSURE_SUCCESS(rv, rv);
   1.319 +
   1.320 +  nsCOMPtr<EventTarget> target = aEvent->InternalDOMEvent()->GetTarget();
   1.321 +
   1.322 +  if (mDatabase &&
   1.323 +      SameCOMIdentity(target, NS_ISUPPORTS_CAST(EventTarget*,
   1.324 +                                                mDatabase))) {
   1.325 +    rv = HandleDatabaseEvent(aEvent, type);
   1.326 +    NS_ENSURE_SUCCESS(rv, rv);
   1.327 +
   1.328 +    return NS_OK;
   1.329 +  }
   1.330 +
   1.331 +  if (mOpenRequest &&
   1.332 +      SameCOMIdentity(target, NS_ISUPPORTS_CAST(EventTarget*,
   1.333 +                                                mOpenRequest))) {
   1.334 +    rv = HandleRequestEvent(aEvent, type);
   1.335 +    NS_ENSURE_SUCCESS(rv, rv);
   1.336 +
   1.337 +    return NS_OK;
   1.338 +  }
   1.339 +
   1.340 +  MOZ_CRASH("Unexpected message!");
   1.341 +}
   1.342 +
   1.343 +void
   1.344 +IndexedDBDatabaseParent::Disconnect()
   1.345 +{
   1.346 +  if (mDatabase) {
   1.347 +    mDatabase->DisconnectFromActorParent();
   1.348 +  }
   1.349 +}
   1.350 +
   1.351 +bool
   1.352 +IndexedDBDatabaseParent::CheckWritePermission(const nsAString& aDatabaseName)
   1.353 +{
   1.354 +  IndexedDBParent* manager = static_cast<IndexedDBParent*>(Manager());
   1.355 +  MOZ_ASSERT(manager);
   1.356 +
   1.357 +  return manager->CheckWritePermission(aDatabaseName);
   1.358 +}
   1.359 +
   1.360 +void
   1.361 +IndexedDBDatabaseParent::Invalidate()
   1.362 +{
   1.363 +  MOZ_ASSERT(mDatabase);
   1.364 +
   1.365 +  if (!IsDisconnected()) {
   1.366 +    mozilla::unused << SendInvalidate();
   1.367 +  }
   1.368 +}
   1.369 +
   1.370 +nsresult
   1.371 +IndexedDBDatabaseParent::HandleRequestEvent(nsIDOMEvent* aEvent,
   1.372 +                                            const nsAString& aType)
   1.373 +{
   1.374 +  MOZ_ASSERT(mOpenRequest);
   1.375 +  MOZ_ASSERT(!IsDisconnected());
   1.376 +
   1.377 +  nsresult rv;
   1.378 +
   1.379 +  if (aType.EqualsLiteral(ERROR_EVT_STR)) {
   1.380 +    nsRefPtr<IDBOpenDBRequest> request;
   1.381 +    mOpenRequest.swap(request);
   1.382 +
   1.383 +    rv = request->GetErrorCode();
   1.384 +    MOZ_ASSERT(NS_FAILED(rv));
   1.385 +
   1.386 +    if (!SendError(rv)) {
   1.387 +      return NS_ERROR_FAILURE;
   1.388 +    }
   1.389 +
   1.390 +    rv = aEvent->PreventDefault();
   1.391 +    NS_ENSURE_SUCCESS(rv, rv);
   1.392 +
   1.393 +    return NS_OK;
   1.394 +  }
   1.395 +
   1.396 +  if (aType.EqualsLiteral(BLOCKED_EVT_STR)) {
   1.397 +    MOZ_ASSERT(!mDatabase);
   1.398 +
   1.399 +    nsCOMPtr<IDBVersionChangeEvent> changeEvent = do_QueryInterface(aEvent);
   1.400 +    NS_ENSURE_TRUE(changeEvent, NS_ERROR_FAILURE);
   1.401 +
   1.402 +    uint64_t oldVersion = changeEvent->OldVersion();
   1.403 +
   1.404 +    if (!SendBlocked(oldVersion)) {
   1.405 +      return NS_ERROR_FAILURE;
   1.406 +    }
   1.407 +
   1.408 +    return NS_OK;
   1.409 +  }
   1.410 +
   1.411 +  AutoSafeJSContext cx;
   1.412 +
   1.413 +  ErrorResult error;
   1.414 +  JS::Rooted<JS::Value> result(cx);
   1.415 +  mOpenRequest->GetResult(cx, &result, error);
   1.416 +  ENSURE_SUCCESS(error, error.ErrorCode());
   1.417 +
   1.418 +  MOZ_ASSERT(!JSVAL_IS_PRIMITIVE(result));
   1.419 +
   1.420 +  IDBDatabase *database;
   1.421 +  rv = UNWRAP_OBJECT(IDBDatabase, &result.toObject(), database);
   1.422 +  if (NS_FAILED(rv)) {
   1.423 +    NS_WARNING("Didn't get the object we expected!");
   1.424 +    return rv;
   1.425 +  }
   1.426 +
   1.427 +  DatabaseInfo* dbInfo = database->Info();
   1.428 +  MOZ_ASSERT(dbInfo);
   1.429 +
   1.430 +  nsAutoTArray<nsString, 20> objectStoreNames;
   1.431 +  if (!dbInfo->GetObjectStoreNames(objectStoreNames)) {
   1.432 +    MOZ_CRASH("This should never fail!");
   1.433 +  }
   1.434 +
   1.435 +  InfallibleTArray<ObjectStoreInfoGuts> objectStoreInfos;
   1.436 +  if (!objectStoreNames.IsEmpty()) {
   1.437 +    uint32_t length = objectStoreNames.Length();
   1.438 +
   1.439 +    objectStoreInfos.SetCapacity(length);
   1.440 +
   1.441 +    for (uint32_t i = 0; i < length; i++) {
   1.442 +      ObjectStoreInfo* osInfo = dbInfo->GetObjectStore(objectStoreNames[i]);
   1.443 +      MOZ_ASSERT(osInfo);
   1.444 +
   1.445 +      objectStoreInfos.AppendElement(*osInfo);
   1.446 +    }
   1.447 +  }
   1.448 +
   1.449 +  if (aType.EqualsLiteral(SUCCESS_EVT_STR)) {
   1.450 +    nsRefPtr<IDBOpenDBRequest> request;
   1.451 +    mOpenRequest.swap(request);
   1.452 +
   1.453 +    EventTarget* target = static_cast<EventTarget*>(database);
   1.454 +
   1.455 +#ifdef DEBUG
   1.456 +    {
   1.457 +      nsresult rvDEBUG =
   1.458 +        target->AddEventListener(NS_LITERAL_STRING(ERROR_EVT_STR),
   1.459 +                                 mEventListener, false);
   1.460 +      NS_WARN_IF_FALSE(NS_SUCCEEDED(rvDEBUG), "Failed to add error listener!");
   1.461 +    }
   1.462 +#endif
   1.463 +
   1.464 +    NS_NAMED_LITERAL_STRING(versionChange, VERSIONCHANGE_EVT_STR);
   1.465 +    rv = target->AddEventListener(versionChange, mEventListener, false);
   1.466 +    NS_ENSURE_SUCCESS(rv, rv);
   1.467 +
   1.468 +    if (!SendSuccess(*dbInfo, objectStoreInfos)) {
   1.469 +      return NS_ERROR_FAILURE;
   1.470 +    }
   1.471 +
   1.472 +    MOZ_ASSERT(!mDatabase || mDatabase == database);
   1.473 +
   1.474 +    if (!mDatabase) {
   1.475 +      database->SetActor(this);
   1.476 +      mDatabase = database;
   1.477 +    }
   1.478 +
   1.479 +    return NS_OK;
   1.480 +  }
   1.481 +
   1.482 +  if (aType.EqualsLiteral(UPGRADENEEDED_EVT_STR)) {
   1.483 +    MOZ_ASSERT(!mDatabase);
   1.484 +
   1.485 +    IDBTransaction* transaction =
   1.486 +      AsyncConnectionHelper::GetCurrentTransaction();
   1.487 +    MOZ_ASSERT(transaction);
   1.488 +
   1.489 +    if (!CheckWritePermission(database->Name())) {
   1.490 +      // If we get here then the child process is either dead or in the process
   1.491 +      // of being killed. Abort the transaction now to prevent any changes to
   1.492 +      // the database.
   1.493 +      ErrorResult rv;
   1.494 +      transaction->Abort(rv);
   1.495 +      if (rv.Failed()) {
   1.496 +        NS_WARNING("Failed to abort transaction!");
   1.497 +      }
   1.498 +      return NS_ERROR_FAILURE;
   1.499 +    }
   1.500 +
   1.501 +    nsCOMPtr<IDBVersionChangeEvent> changeEvent = do_QueryInterface(aEvent);
   1.502 +    NS_ENSURE_TRUE(changeEvent, NS_ERROR_FAILURE);
   1.503 +
   1.504 +    uint64_t oldVersion = changeEvent->OldVersion();
   1.505 +
   1.506 +    nsAutoPtr<IndexedDBVersionChangeTransactionParent> actor(
   1.507 +      new IndexedDBVersionChangeTransactionParent());
   1.508 +
   1.509 +    rv = actor->SetTransaction(transaction);
   1.510 +    NS_ENSURE_SUCCESS(rv, rv);
   1.511 +
   1.512 +    VersionChangeTransactionParams versionChangeParams;
   1.513 +    versionChangeParams.dbInfo() = *dbInfo;
   1.514 +    versionChangeParams.osInfo() = objectStoreInfos;
   1.515 +    versionChangeParams.oldVersion() = oldVersion;
   1.516 +
   1.517 +    if (!SendPIndexedDBTransactionConstructor(actor.forget(),
   1.518 +                                              versionChangeParams)) {
   1.519 +      return NS_ERROR_FAILURE;
   1.520 +    }
   1.521 +
   1.522 +    database->SetActor(this);
   1.523 +    mDatabase = database;
   1.524 +
   1.525 +    return NS_OK;
   1.526 +  }
   1.527 +
   1.528 +  MOZ_CRASH("Unexpected message type!");
   1.529 +}
   1.530 +
   1.531 +nsresult
   1.532 +IndexedDBDatabaseParent::HandleDatabaseEvent(nsIDOMEvent* aEvent,
   1.533 +                                             const nsAString& aType)
   1.534 +{
   1.535 +  MOZ_ASSERT(mDatabase);
   1.536 +  MOZ_ASSERT(!aType.EqualsLiteral(ERROR_EVT_STR),
   1.537 +             "Should never get error events in the parent process!");
   1.538 +  MOZ_ASSERT(!IsDisconnected());
   1.539 +
   1.540 +  if (aType.EqualsLiteral(VERSIONCHANGE_EVT_STR)) {
   1.541 +    AutoSafeJSContext cx;
   1.542 +    NS_ENSURE_TRUE(cx, NS_ERROR_FAILURE);
   1.543 +
   1.544 +    nsCOMPtr<IDBVersionChangeEvent> changeEvent = do_QueryInterface(aEvent);
   1.545 +    NS_ENSURE_TRUE(changeEvent, NS_ERROR_FAILURE);
   1.546 +
   1.547 +    uint64_t oldVersion = changeEvent->OldVersion();
   1.548 +
   1.549 +    Nullable<uint64_t> newVersionVal = changeEvent->GetNewVersion();
   1.550 +
   1.551 +    uint64_t newVersion;
   1.552 +    if (newVersionVal.IsNull()) {
   1.553 +      newVersion = 0;
   1.554 +    }
   1.555 +    else {
   1.556 +      newVersion = newVersionVal.Value();
   1.557 +    }
   1.558 +
   1.559 +    if (!SendVersionChange(oldVersion, newVersion)) {
   1.560 +      return NS_ERROR_FAILURE;
   1.561 +    }
   1.562 +
   1.563 +    return NS_OK;
   1.564 +  }
   1.565 +
   1.566 +  MOZ_CRASH("Unexpected message type!");
   1.567 +}
   1.568 +
   1.569 +void
   1.570 +IndexedDBDatabaseParent::ActorDestroy(ActorDestroyReason aWhy)
   1.571 +{
   1.572 +  if (mDatabase) {
   1.573 +    mDatabase->SetActor(static_cast<IndexedDBDatabaseParent*>(nullptr));
   1.574 +    mDatabase->InvalidateInternal(/* aIsDead */ true);
   1.575 +  }
   1.576 +}
   1.577 +
   1.578 +bool
   1.579 +IndexedDBDatabaseParent::RecvClose(const bool& aUnlinked)
   1.580 +{
   1.581 +  MOZ_ASSERT(mDatabase);
   1.582 +
   1.583 +  if (IsDisconnected()) {
   1.584 +    // We're shutting down, ignore this request.
   1.585 +    return true;
   1.586 +  }
   1.587 +
   1.588 +  mDatabase->CloseInternal(aUnlinked);
   1.589 +  return true;
   1.590 +}
   1.591 +
   1.592 +bool
   1.593 +IndexedDBDatabaseParent::RecvPIndexedDBTransactionConstructor(
   1.594 +                                            PIndexedDBTransactionParent* aActor,
   1.595 +                                            const TransactionParams& aParams)
   1.596 +{
   1.597 +  MOZ_ASSERT(aParams.type() ==
   1.598 +             TransactionParams::TNormalTransactionParams);
   1.599 +  MOZ_ASSERT(!mOpenRequest);
   1.600 +
   1.601 +  if (IsDisconnected()) {
   1.602 +    // We're shutting down, ignore this request.
   1.603 +    return true;
   1.604 +  }
   1.605 +
   1.606 +  if (!mDatabase) {
   1.607 +    return true;
   1.608 +  }
   1.609 +
   1.610 +  IndexedDBTransactionParent* actor =
   1.611 +    static_cast<IndexedDBTransactionParent*>(aActor);
   1.612 +
   1.613 +  const NormalTransactionParams& params = aParams.get_NormalTransactionParams();
   1.614 +
   1.615 +  if (params.mode() != IDBTransaction::READ_ONLY &&
   1.616 +      !CheckWritePermission(mDatabase->Name())) {
   1.617 +    return false;
   1.618 +  }
   1.619 +
   1.620 +  if (mDatabase->IsClosed()) {
   1.621 +    // If the window was navigated then we won't be able to do anything here.
   1.622 +    return true;
   1.623 +  }
   1.624 +
   1.625 +  Sequence<nsString> storesToOpen;
   1.626 +  storesToOpen.AppendElements(params.names());
   1.627 +
   1.628 +  nsRefPtr<IDBTransaction> transaction =
   1.629 +    IDBTransaction::Create(mDatabase, storesToOpen, params.mode(), false);
   1.630 +  NS_ENSURE_TRUE(transaction, false);
   1.631 +
   1.632 +  nsresult rv = actor->SetTransaction(transaction);
   1.633 +  NS_ENSURE_SUCCESS(rv, false);
   1.634 +
   1.635 +  return true;
   1.636 +}
   1.637 +
   1.638 +PIndexedDBTransactionParent*
   1.639 +IndexedDBDatabaseParent::AllocPIndexedDBTransactionParent(
   1.640 +                                               const TransactionParams& aParams)
   1.641 +{
   1.642 +  MOZ_ASSERT(aParams.type() ==
   1.643 +             TransactionParams::TNormalTransactionParams);
   1.644 +  return new IndexedDBTransactionParent();
   1.645 +}
   1.646 +
   1.647 +bool
   1.648 +IndexedDBDatabaseParent::DeallocPIndexedDBTransactionParent(
   1.649 +                                            PIndexedDBTransactionParent* aActor)
   1.650 +{
   1.651 +  delete aActor;
   1.652 +  return true;
   1.653 +}
   1.654 +
   1.655 +/*******************************************************************************
   1.656 + * IndexedDBTransactionParent
   1.657 + ******************************************************************************/
   1.658 +
   1.659 +IndexedDBTransactionParent::IndexedDBTransactionParent()
   1.660 +: mEventListener(MOZ_THIS_IN_INITIALIZER_LIST()),
   1.661 +  mArtificialRequestCount(false)
   1.662 +{
   1.663 +  MOZ_COUNT_CTOR(IndexedDBTransactionParent);
   1.664 +}
   1.665 +
   1.666 +IndexedDBTransactionParent::~IndexedDBTransactionParent()
   1.667 +{
   1.668 +  MOZ_COUNT_DTOR(IndexedDBTransactionParent);
   1.669 +}
   1.670 +
   1.671 +nsresult
   1.672 +IndexedDBTransactionParent::SetTransaction(IDBTransaction* aTransaction)
   1.673 +{
   1.674 +  MOZ_ASSERT(aTransaction);
   1.675 +  MOZ_ASSERT(!mTransaction);
   1.676 +
   1.677 +  EventTarget* target = static_cast<EventTarget*>(aTransaction);
   1.678 +
   1.679 +  NS_NAMED_LITERAL_STRING(complete, COMPLETE_EVT_STR);
   1.680 +  nsresult rv = target->AddEventListener(complete, mEventListener, false);
   1.681 +  NS_ENSURE_SUCCESS(rv, rv);
   1.682 +
   1.683 +  rv = target->AddEventListener(NS_LITERAL_STRING(ABORT_EVT_STR),
   1.684 +                                mEventListener, false);
   1.685 +  NS_ENSURE_SUCCESS(rv, rv);
   1.686 +
   1.687 +  aTransaction->OnNewRequest();
   1.688 +  mArtificialRequestCount = true;
   1.689 +
   1.690 +  aTransaction->SetActor(this);
   1.691 +
   1.692 +  mTransaction = aTransaction;
   1.693 +  return NS_OK;
   1.694 +}
   1.695 +
   1.696 +nsresult
   1.697 +IndexedDBTransactionParent::HandleEvent(nsIDOMEvent* aEvent)
   1.698 +{
   1.699 +  MOZ_ASSERT(aEvent);
   1.700 +
   1.701 +  if (IsDisconnected()) {
   1.702 +    // We're shutting down, ignore this event.
   1.703 +    return NS_OK;
   1.704 +  }
   1.705 +
   1.706 +  nsString type;
   1.707 +  nsresult rv = aEvent->GetType(type);
   1.708 +  NS_ENSURE_SUCCESS(rv, rv);
   1.709 +
   1.710 +  CompleteParams params;
   1.711 +
   1.712 +  if (type.EqualsLiteral(COMPLETE_EVT_STR)) {
   1.713 +    params = CompleteResult();
   1.714 +  }
   1.715 +  else if (type.EqualsLiteral(ABORT_EVT_STR)) {
   1.716 +#ifdef DEBUG
   1.717 +    {
   1.718 +      nsCOMPtr<EventTarget> target = aEvent->InternalDOMEvent()->GetTarget();
   1.719 +      MOZ_ASSERT(SameCOMIdentity(target, NS_ISUPPORTS_CAST(EventTarget*,
   1.720 +                                                           mTransaction)));
   1.721 +    }
   1.722 +#endif
   1.723 +    params = AbortResult(mTransaction->GetAbortCode());
   1.724 +  }
   1.725 +  else {
   1.726 +    NS_WARNING("Unknown message type!");
   1.727 +    return NS_ERROR_UNEXPECTED;
   1.728 +  }
   1.729 +
   1.730 +  if (!SendComplete(params)) {
   1.731 +    return NS_ERROR_FAILURE;
   1.732 +  }
   1.733 +
   1.734 +  return NS_OK;
   1.735 +}
   1.736 +
   1.737 +void
   1.738 +IndexedDBTransactionParent::ActorDestroy(ActorDestroyReason aWhy)
   1.739 +{
   1.740 +  if (mTransaction) {
   1.741 +    if (mArtificialRequestCount) {
   1.742 +      // The transaction never completed and now the child side is dead. Abort
   1.743 +      // here to be safe.
   1.744 +      ErrorResult rv;
   1.745 +      mTransaction->Abort(rv);
   1.746 +
   1.747 +      mTransaction->OnRequestFinished();
   1.748 +#ifdef DEBUG
   1.749 +      mArtificialRequestCount = false;
   1.750 +#endif
   1.751 +    }
   1.752 +    mTransaction->SetActor(static_cast<IndexedDBTransactionParent*>(nullptr));
   1.753 +  }
   1.754 +}
   1.755 +
   1.756 +bool
   1.757 +IndexedDBTransactionParent::RecvAbort(const nsresult& aAbortCode)
   1.758 +{
   1.759 +  MOZ_ASSERT(mTransaction);
   1.760 +
   1.761 +  if (IsDisconnected()) {
   1.762 +    // We're shutting down, ignore this request.
   1.763 +    return true;
   1.764 +  }
   1.765 +
   1.766 +  mTransaction->Abort(aAbortCode);
   1.767 +  return true;
   1.768 +}
   1.769 +
   1.770 +bool
   1.771 +IndexedDBTransactionParent::RecvAllRequestsFinished()
   1.772 +{
   1.773 +  MOZ_ASSERT(mTransaction);
   1.774 +  MOZ_ASSERT(mArtificialRequestCount);
   1.775 +
   1.776 +  if (IsDisconnected()) {
   1.777 +    // We're shutting down, ignore this request.
   1.778 +    return true;
   1.779 +  }
   1.780 +
   1.781 +  mTransaction->OnRequestFinished();
   1.782 +  mArtificialRequestCount = false;
   1.783 +
   1.784 +  return true;
   1.785 +}
   1.786 +
   1.787 +bool
   1.788 +IndexedDBTransactionParent::RecvDeleteObjectStore(const nsString& aName)
   1.789 +{
   1.790 +  MOZ_CRASH("Should be overridden, don't call me!");
   1.791 +}
   1.792 +
   1.793 +bool
   1.794 +IndexedDBTransactionParent::RecvPIndexedDBObjectStoreConstructor(
   1.795 +                                    PIndexedDBObjectStoreParent* aActor,
   1.796 +                                    const ObjectStoreConstructorParams& aParams)
   1.797 +{
   1.798 +  if (IsDisconnected()) {
   1.799 +    // We're shutting down, ignore this request.
   1.800 +    return true;
   1.801 +  }
   1.802 +
   1.803 +  if (!mTransaction) {
   1.804 +    return true;
   1.805 +  }
   1.806 +
   1.807 +  IndexedDBObjectStoreParent* actor =
   1.808 +    static_cast<IndexedDBObjectStoreParent*>(aActor);
   1.809 +
   1.810 +  if (aParams.type() ==
   1.811 +      ObjectStoreConstructorParams::TGetObjectStoreParams) {
   1.812 +    const GetObjectStoreParams& params = aParams.get_GetObjectStoreParams();
   1.813 +    const nsString& name = params.name();
   1.814 +
   1.815 +    nsRefPtr<IDBObjectStore> objectStore;
   1.816 +
   1.817 +    {
   1.818 +      AutoSetCurrentTransaction asct(mTransaction);
   1.819 +
   1.820 +      ErrorResult rv;
   1.821 +      objectStore = mTransaction->ObjectStore(name, rv);
   1.822 +      ENSURE_SUCCESS(rv, false);
   1.823 +
   1.824 +      actor->SetObjectStore(objectStore);
   1.825 +    }
   1.826 +
   1.827 +    objectStore->SetActor(actor);
   1.828 +    return true;
   1.829 +  }
   1.830 +
   1.831 +  if (aParams.type() ==
   1.832 +      ObjectStoreConstructorParams::TCreateObjectStoreParams) {
   1.833 +    MOZ_CRASH("Should be overridden, don't call me!");
   1.834 +  }
   1.835 +
   1.836 +  MOZ_CRASH("Unknown param type!");
   1.837 +}
   1.838 +
   1.839 +PIndexedDBObjectStoreParent*
   1.840 +IndexedDBTransactionParent::AllocPIndexedDBObjectStoreParent(
   1.841 +                                    const ObjectStoreConstructorParams& aParams)
   1.842 +{
   1.843 +  return new IndexedDBObjectStoreParent();
   1.844 +}
   1.845 +
   1.846 +bool
   1.847 +IndexedDBTransactionParent::DeallocPIndexedDBObjectStoreParent(
   1.848 +                                            PIndexedDBObjectStoreParent* aActor)
   1.849 +{
   1.850 +  delete aActor;
   1.851 +  return true;
   1.852 +}
   1.853 +
   1.854 +/*******************************************************************************
   1.855 + * IndexedDBVersionChangeTransactionParent
   1.856 + ******************************************************************************/
   1.857 +
   1.858 +IndexedDBVersionChangeTransactionParent::
   1.859 +  IndexedDBVersionChangeTransactionParent()
   1.860 +{
   1.861 +  MOZ_COUNT_CTOR(IndexedDBVersionChangeTransactionParent);
   1.862 +}
   1.863 +
   1.864 +IndexedDBVersionChangeTransactionParent::
   1.865 +  ~IndexedDBVersionChangeTransactionParent()
   1.866 +{
   1.867 +  MOZ_COUNT_DTOR(IndexedDBVersionChangeTransactionParent);
   1.868 +}
   1.869 +
   1.870 +bool
   1.871 +IndexedDBVersionChangeTransactionParent::RecvDeleteObjectStore(
   1.872 +                                                          const nsString& aName)
   1.873 +{
   1.874 +  MOZ_ASSERT(!mTransaction ||
   1.875 +             mTransaction->GetMode() == IDBTransaction::VERSION_CHANGE);
   1.876 +
   1.877 +  if (IsDisconnected()) {
   1.878 +    // We're shutting down, ignore this request.
   1.879 +    return true;
   1.880 +  }
   1.881 +
   1.882 +  if (!mTransaction) {
   1.883 +    return true;
   1.884 +  }
   1.885 +
   1.886 +  if (mTransaction->Database()->IsInvalidated()) {
   1.887 +    // If we've invalidated this database in the parent then we should bail out
   1.888 +    // now to avoid logic problems that could force-kill the child.
   1.889 +    return true;
   1.890 +  }
   1.891 +
   1.892 +  IDBDatabase* db = mTransaction->Database();
   1.893 +  MOZ_ASSERT(db);
   1.894 +
   1.895 +  ErrorResult rv;
   1.896 +
   1.897 +  {
   1.898 +    AutoSetCurrentTransaction asct(mTransaction);
   1.899 +    db->DeleteObjectStore(aName, rv);
   1.900 +  }
   1.901 +
   1.902 +  ENSURE_SUCCESS(rv, false);
   1.903 +  return true;
   1.904 +}
   1.905 +
   1.906 +bool
   1.907 +IndexedDBVersionChangeTransactionParent::RecvPIndexedDBObjectStoreConstructor(
   1.908 +                                    PIndexedDBObjectStoreParent* aActor,
   1.909 +                                    const ObjectStoreConstructorParams& aParams)
   1.910 +{
   1.911 +  if (IsDisconnected()) {
   1.912 +    // We're shutting down, ignore this request.
   1.913 +    return true;
   1.914 +  }
   1.915 +
   1.916 +  if (!mTransaction) {
   1.917 +    return true;
   1.918 +  }
   1.919 +
   1.920 +  if (mTransaction->Database()->IsInvalidated()) {
   1.921 +    // If we've invalidated this database in the parent then we should bail out
   1.922 +    // now to avoid logic problems that could force-kill the child.
   1.923 +    return true;
   1.924 +  }
   1.925 +
   1.926 +  IndexedDBObjectStoreParent* actor =
   1.927 +    static_cast<IndexedDBObjectStoreParent*>(aActor);
   1.928 +
   1.929 +  if (aParams.type() ==
   1.930 +      ObjectStoreConstructorParams::TCreateObjectStoreParams) {
   1.931 +    MOZ_ASSERT(mTransaction->GetMode() == IDBTransaction::VERSION_CHANGE);
   1.932 +
   1.933 +    const CreateObjectStoreParams& params =
   1.934 +      aParams.get_CreateObjectStoreParams();
   1.935 +
   1.936 +    const ObjectStoreInfoGuts& info = params.info();
   1.937 +
   1.938 +    IDBDatabase* db = mTransaction->Database();
   1.939 +    MOZ_ASSERT(db);
   1.940 +
   1.941 +    nsRefPtr<IDBObjectStore> objectStore;
   1.942 +
   1.943 +    ErrorResult rv;
   1.944 +
   1.945 +    {
   1.946 +      AutoSetCurrentTransaction asct(mTransaction);
   1.947 +
   1.948 +      objectStore = db->CreateObjectStoreInternal(mTransaction, info, rv);
   1.949 +    }
   1.950 +
   1.951 +    ENSURE_SUCCESS(rv, false);
   1.952 +
   1.953 +    actor->SetObjectStore(objectStore);
   1.954 +    objectStore->SetActor(actor);
   1.955 +    return true;
   1.956 +  }
   1.957 +
   1.958 +  return
   1.959 +    IndexedDBTransactionParent::RecvPIndexedDBObjectStoreConstructor(aActor,
   1.960 +                                                                     aParams);
   1.961 +}
   1.962 +
   1.963 +PIndexedDBObjectStoreParent*
   1.964 +IndexedDBVersionChangeTransactionParent::AllocPIndexedDBObjectStoreParent(
   1.965 +                                    const ObjectStoreConstructorParams& aParams)
   1.966 +{
   1.967 +  if (aParams.type() ==
   1.968 +      ObjectStoreConstructorParams::TCreateObjectStoreParams ||
   1.969 +      mTransaction->GetMode() == IDBTransaction::VERSION_CHANGE) {
   1.970 +    return new IndexedDBVersionChangeObjectStoreParent();
   1.971 +  }
   1.972 +
   1.973 +  return IndexedDBTransactionParent::AllocPIndexedDBObjectStoreParent(aParams);
   1.974 +}
   1.975 +
   1.976 +/*******************************************************************************
   1.977 + * IndexedDBCursorParent
   1.978 + ******************************************************************************/
   1.979 +
   1.980 +IndexedDBCursorParent::IndexedDBCursorParent(IDBCursor* aCursor)
   1.981 +: mCursor(aCursor)
   1.982 +{
   1.983 +  MOZ_COUNT_CTOR(IndexedDBCursorParent);
   1.984 +  MOZ_ASSERT(aCursor);
   1.985 +  aCursor->SetActor(this);
   1.986 +}
   1.987 +
   1.988 +IndexedDBCursorParent::~IndexedDBCursorParent()
   1.989 +{
   1.990 +  MOZ_COUNT_DTOR(IndexedDBCursorParent);
   1.991 +}
   1.992 +
   1.993 +bool
   1.994 +IndexedDBCursorParent::IsDisconnected() const
   1.995 +{
   1.996 +  MOZ_ASSERT(mCursor);
   1.997 +  return mCursor->Transaction()->GetActorParent()->IsDisconnected();
   1.998 +}
   1.999 +
  1.1000 +void
  1.1001 +IndexedDBCursorParent::ActorDestroy(ActorDestroyReason aWhy)
  1.1002 +{
  1.1003 +  MOZ_ASSERT(mCursor);
  1.1004 +  mCursor->SetActor(static_cast<IndexedDBCursorParent*>(nullptr));
  1.1005 +}
  1.1006 +
  1.1007 +bool
  1.1008 +IndexedDBCursorParent::RecvPIndexedDBRequestConstructor(
  1.1009 +                                             PIndexedDBRequestParent* aActor,
  1.1010 +                                             const CursorRequestParams& aParams)
  1.1011 +{
  1.1012 +  MOZ_ASSERT(mCursor);
  1.1013 +
  1.1014 +  if (IsDisconnected()) {
  1.1015 +    // We're shutting down, ignore this request.
  1.1016 +    return true;
  1.1017 +  }
  1.1018 +
  1.1019 +  IndexedDBCursorRequestParent* actor =
  1.1020 +    static_cast<IndexedDBCursorRequestParent*>(aActor);
  1.1021 +
  1.1022 +  if (mCursor->Transaction()->Database()->IsInvalidated()) {
  1.1023 +    // If we've invalidated this database in the parent then we should bail out
  1.1024 +    // now to avoid logic problems that could force-kill the child.
  1.1025 +    return actor->Send__delete__(actor, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
  1.1026 +  }
  1.1027 +
  1.1028 +  switch (aParams.type()) {
  1.1029 +    case CursorRequestParams::TContinueParams:
  1.1030 +      return actor->Continue(aParams.get_ContinueParams());
  1.1031 +
  1.1032 +    default:
  1.1033 +      MOZ_CRASH("Unknown type!");
  1.1034 +  }
  1.1035 +
  1.1036 +  MOZ_CRASH("Should never get here!");
  1.1037 +}
  1.1038 +
  1.1039 +PIndexedDBRequestParent*
  1.1040 +IndexedDBCursorParent::AllocPIndexedDBRequestParent(
  1.1041 +                                             const CursorRequestParams& aParams)
  1.1042 +{
  1.1043 +  MOZ_ASSERT(mCursor);
  1.1044 +  return new IndexedDBCursorRequestParent(mCursor, aParams.type());
  1.1045 +}
  1.1046 +
  1.1047 +bool
  1.1048 +IndexedDBCursorParent::DeallocPIndexedDBRequestParent(PIndexedDBRequestParent* aActor)
  1.1049 +{
  1.1050 +  delete aActor;
  1.1051 +  return true;
  1.1052 +}
  1.1053 +
  1.1054 +/*******************************************************************************
  1.1055 + * IndexedDBObjectStoreParent
  1.1056 + ******************************************************************************/
  1.1057 +
  1.1058 +IndexedDBObjectStoreParent::IndexedDBObjectStoreParent()
  1.1059 +{
  1.1060 +  MOZ_COUNT_CTOR(IndexedDBObjectStoreParent);
  1.1061 +}
  1.1062 +
  1.1063 +IndexedDBObjectStoreParent::~IndexedDBObjectStoreParent()
  1.1064 +{
  1.1065 +  MOZ_COUNT_DTOR(IndexedDBObjectStoreParent);
  1.1066 +}
  1.1067 +
  1.1068 +void
  1.1069 +IndexedDBObjectStoreParent::SetObjectStore(IDBObjectStore* aObjectStore)
  1.1070 +{
  1.1071 +  // Sadly can't assert aObjectStore here...
  1.1072 +  MOZ_ASSERT(!mObjectStore);
  1.1073 +
  1.1074 +  mObjectStore = aObjectStore;
  1.1075 +}
  1.1076 +
  1.1077 +void
  1.1078 +IndexedDBObjectStoreParent::ActorDestroy(ActorDestroyReason aWhy)
  1.1079 +{
  1.1080 +  if (mObjectStore) {
  1.1081 +    mObjectStore->SetActor(static_cast<IndexedDBObjectStoreParent*>(nullptr));
  1.1082 +  }
  1.1083 +}
  1.1084 +
  1.1085 +bool
  1.1086 +IndexedDBObjectStoreParent::RecvDeleteIndex(const nsString& aName)
  1.1087 +{
  1.1088 +  MOZ_CRASH("Should be overridden, don't call me!");
  1.1089 +}
  1.1090 +
  1.1091 +bool
  1.1092 +IndexedDBObjectStoreParent::RecvPIndexedDBRequestConstructor(
  1.1093 +                                        PIndexedDBRequestParent* aActor,
  1.1094 +                                        const ObjectStoreRequestParams& aParams)
  1.1095 +{
  1.1096 +  if (IsDisconnected()) {
  1.1097 +    // We're shutting down, ignore this request.
  1.1098 +    return true;
  1.1099 +  }
  1.1100 +
  1.1101 +  if (!mObjectStore) {
  1.1102 +    return true;
  1.1103 +  }
  1.1104 +
  1.1105 +  IndexedDBObjectStoreRequestParent* actor =
  1.1106 +    static_cast<IndexedDBObjectStoreRequestParent*>(aActor);
  1.1107 +
  1.1108 +  if (mObjectStore->Transaction()->Database()->IsInvalidated()) {
  1.1109 +    // If we've invalidated this database in the parent then we should bail out
  1.1110 +    // now to avoid logic problems that could force-kill the child.
  1.1111 +    return actor->Send__delete__(actor, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
  1.1112 +  }
  1.1113 +
  1.1114 +  switch (aParams.type()) {
  1.1115 +    case ObjectStoreRequestParams::TGetParams:
  1.1116 +      return actor->Get(aParams.get_GetParams());
  1.1117 +
  1.1118 +    case ObjectStoreRequestParams::TGetAllParams:
  1.1119 +      return actor->GetAll(aParams.get_GetAllParams());
  1.1120 +
  1.1121 +    case ObjectStoreRequestParams::TGetAllKeysParams:
  1.1122 +      return actor->GetAllKeys(aParams.get_GetAllKeysParams());
  1.1123 +
  1.1124 +    case ObjectStoreRequestParams::TAddParams:
  1.1125 +      return actor->Add(aParams.get_AddParams());
  1.1126 +
  1.1127 +    case ObjectStoreRequestParams::TPutParams:
  1.1128 +      return actor->Put(aParams.get_PutParams());
  1.1129 +
  1.1130 +    case ObjectStoreRequestParams::TDeleteParams:
  1.1131 +      return actor->Delete(aParams.get_DeleteParams());
  1.1132 +
  1.1133 +    case ObjectStoreRequestParams::TClearParams:
  1.1134 +      return actor->Clear(aParams.get_ClearParams());
  1.1135 +
  1.1136 +    case ObjectStoreRequestParams::TCountParams:
  1.1137 +      return actor->Count(aParams.get_CountParams());
  1.1138 +
  1.1139 +    case ObjectStoreRequestParams::TOpenCursorParams:
  1.1140 +      return actor->OpenCursor(aParams.get_OpenCursorParams());
  1.1141 +
  1.1142 +    case ObjectStoreRequestParams::TOpenKeyCursorParams:
  1.1143 +      return actor->OpenKeyCursor(aParams.get_OpenKeyCursorParams());
  1.1144 +
  1.1145 +    default:
  1.1146 +      MOZ_CRASH("Unknown type!");
  1.1147 +  }
  1.1148 +
  1.1149 +  MOZ_CRASH("Should never get here!");
  1.1150 +}
  1.1151 +
  1.1152 +bool
  1.1153 +IndexedDBObjectStoreParent::RecvPIndexedDBIndexConstructor(
  1.1154 +                                          PIndexedDBIndexParent* aActor,
  1.1155 +                                          const IndexConstructorParams& aParams)
  1.1156 +{
  1.1157 +  if (IsDisconnected()) {
  1.1158 +    // We're shutting down, ignore this request.
  1.1159 +    return true;
  1.1160 +  }
  1.1161 +
  1.1162 +  if (!mObjectStore) {
  1.1163 +    return true;
  1.1164 +  }
  1.1165 +
  1.1166 +  IndexedDBIndexParent* actor = static_cast<IndexedDBIndexParent*>(aActor);
  1.1167 +
  1.1168 +  if (aParams.type() == IndexConstructorParams::TGetIndexParams) {
  1.1169 +    const GetIndexParams& params = aParams.get_GetIndexParams();
  1.1170 +    const nsString& name = params.name();
  1.1171 +
  1.1172 +    nsRefPtr<IDBIndex> index;
  1.1173 +
  1.1174 +    {
  1.1175 +      AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1176 +
  1.1177 +      ErrorResult rv;
  1.1178 +      index = mObjectStore->Index(name, rv);
  1.1179 +      ENSURE_SUCCESS(rv, false);
  1.1180 +
  1.1181 +      actor->SetIndex(index);
  1.1182 +    }
  1.1183 +
  1.1184 +    index->SetActor(actor);
  1.1185 +    return true;
  1.1186 +  }
  1.1187 +
  1.1188 +  if (aParams.type() == IndexConstructorParams::TCreateIndexParams) {
  1.1189 +    MOZ_CRASH("Should be overridden, don't call me!");
  1.1190 +  }
  1.1191 +
  1.1192 +  MOZ_CRASH("Unknown param type!");
  1.1193 +}
  1.1194 +
  1.1195 +PIndexedDBRequestParent*
  1.1196 +IndexedDBObjectStoreParent::AllocPIndexedDBRequestParent(
  1.1197 +                                        const ObjectStoreRequestParams& aParams)
  1.1198 +{
  1.1199 +  return new IndexedDBObjectStoreRequestParent(mObjectStore, aParams.type());
  1.1200 +}
  1.1201 +
  1.1202 +bool
  1.1203 +IndexedDBObjectStoreParent::DeallocPIndexedDBRequestParent(
  1.1204 +                                                PIndexedDBRequestParent* aActor)
  1.1205 +{
  1.1206 +  delete aActor;
  1.1207 +  return true;
  1.1208 +}
  1.1209 +
  1.1210 +PIndexedDBIndexParent*
  1.1211 +IndexedDBObjectStoreParent::AllocPIndexedDBIndexParent(
  1.1212 +                                          const IndexConstructorParams& aParams)
  1.1213 +{
  1.1214 +  return new IndexedDBIndexParent();
  1.1215 +}
  1.1216 +
  1.1217 +bool
  1.1218 +IndexedDBObjectStoreParent::DeallocPIndexedDBIndexParent(
  1.1219 +                                                  PIndexedDBIndexParent* aActor)
  1.1220 +{
  1.1221 +  delete aActor;
  1.1222 +  return true;
  1.1223 +}
  1.1224 +
  1.1225 +PIndexedDBCursorParent*
  1.1226 +IndexedDBObjectStoreParent::AllocPIndexedDBCursorParent(
  1.1227 +                              const ObjectStoreCursorConstructorParams& aParams)
  1.1228 +{
  1.1229 +  MOZ_CRASH("Caller is supposed to manually construct a cursor!");
  1.1230 +}
  1.1231 +
  1.1232 +bool
  1.1233 +IndexedDBObjectStoreParent::DeallocPIndexedDBCursorParent(
  1.1234 +                                                 PIndexedDBCursorParent* aActor)
  1.1235 +{
  1.1236 +  delete aActor;
  1.1237 +  return true;
  1.1238 +}
  1.1239 +
  1.1240 +/*******************************************************************************
  1.1241 + * IndexedDBVersionChangeObjectStoreParent
  1.1242 + ******************************************************************************/
  1.1243 +
  1.1244 +IndexedDBVersionChangeObjectStoreParent::
  1.1245 +  IndexedDBVersionChangeObjectStoreParent()
  1.1246 +{
  1.1247 +  MOZ_COUNT_CTOR(IndexedDBVersionChangeObjectStoreParent);
  1.1248 +}
  1.1249 +
  1.1250 +IndexedDBVersionChangeObjectStoreParent::
  1.1251 +  ~IndexedDBVersionChangeObjectStoreParent()
  1.1252 +{
  1.1253 +  MOZ_COUNT_DTOR(IndexedDBVersionChangeObjectStoreParent);
  1.1254 +}
  1.1255 +
  1.1256 +bool
  1.1257 +IndexedDBVersionChangeObjectStoreParent::RecvDeleteIndex(const nsString& aName)
  1.1258 +{
  1.1259 +  MOZ_ASSERT(!mObjectStore ||
  1.1260 +             mObjectStore->Transaction()->GetMode() ==
  1.1261 +             IDBTransaction::VERSION_CHANGE);
  1.1262 +
  1.1263 +  if (IsDisconnected()) {
  1.1264 +    // We're shutting down, ignore this request.
  1.1265 +    return true;
  1.1266 +  }
  1.1267 +
  1.1268 +  if (!mObjectStore) {
  1.1269 +    return true;
  1.1270 +  }
  1.1271 +
  1.1272 +  if (mObjectStore->Transaction()->Database()->IsInvalidated()) {
  1.1273 +    // If we've invalidated this database in the parent then we should bail out
  1.1274 +    // now to avoid logic problems that could force-kill the child.
  1.1275 +    return true;
  1.1276 +  }
  1.1277 +
  1.1278 +  ErrorResult rv;
  1.1279 +
  1.1280 +  {
  1.1281 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1282 +
  1.1283 +    mObjectStore->DeleteIndex(aName, rv);
  1.1284 +  }
  1.1285 +
  1.1286 +  ENSURE_SUCCESS(rv, false);
  1.1287 +  return true;
  1.1288 +}
  1.1289 +
  1.1290 +bool
  1.1291 +IndexedDBVersionChangeObjectStoreParent::RecvPIndexedDBIndexConstructor(
  1.1292 +                                          PIndexedDBIndexParent* aActor,
  1.1293 +                                          const IndexConstructorParams& aParams)
  1.1294 +{
  1.1295 +  if (IsDisconnected()) {
  1.1296 +    // We're shutting down, ignore this request.
  1.1297 +    return true;
  1.1298 +  }
  1.1299 +
  1.1300 +  if (!mObjectStore) {
  1.1301 +    return true;
  1.1302 +  }
  1.1303 +
  1.1304 +  if (mObjectStore->Transaction()->Database()->IsInvalidated()) {
  1.1305 +    // If we've invalidated this database in the parent then we should bail out
  1.1306 +    // now to avoid logic problems that could force-kill the child.
  1.1307 +    return true;
  1.1308 +  }
  1.1309 +
  1.1310 +  IndexedDBIndexParent* actor = static_cast<IndexedDBIndexParent*>(aActor);
  1.1311 +
  1.1312 +  if (aParams.type() == IndexConstructorParams::TCreateIndexParams) {
  1.1313 +    MOZ_ASSERT(mObjectStore->Transaction()->GetMode() ==
  1.1314 +               IDBTransaction::VERSION_CHANGE);
  1.1315 +
  1.1316 +    const CreateIndexParams& params = aParams.get_CreateIndexParams();
  1.1317 +    const IndexInfo& info = params.info();
  1.1318 +
  1.1319 +    nsRefPtr<IDBIndex> index;
  1.1320 +
  1.1321 +    {
  1.1322 +      AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1323 +
  1.1324 +      ErrorResult rv;
  1.1325 +      index = mObjectStore->CreateIndexInternal(info, rv);
  1.1326 +      ENSURE_SUCCESS(rv, false);
  1.1327 +    }
  1.1328 +
  1.1329 +    actor->SetIndex(index);
  1.1330 +    index->SetActor(actor);
  1.1331 +    return true;
  1.1332 +  }
  1.1333 +
  1.1334 +  return IndexedDBObjectStoreParent::RecvPIndexedDBIndexConstructor(aActor,
  1.1335 +                                                                    aParams);
  1.1336 +}
  1.1337 +
  1.1338 +/*******************************************************************************
  1.1339 + * IndexedDBIndexParent
  1.1340 + ******************************************************************************/
  1.1341 +
  1.1342 +IndexedDBIndexParent::IndexedDBIndexParent()
  1.1343 +{
  1.1344 +  MOZ_COUNT_CTOR(IndexedDBIndexParent);
  1.1345 +}
  1.1346 +
  1.1347 +IndexedDBIndexParent::~IndexedDBIndexParent()
  1.1348 +{
  1.1349 +  MOZ_COUNT_DTOR(IndexedDBIndexParent);
  1.1350 +}
  1.1351 +
  1.1352 +void
  1.1353 +IndexedDBIndexParent::SetIndex(IDBIndex* aIndex)
  1.1354 +{
  1.1355 +  MOZ_ASSERT(aIndex);
  1.1356 +  MOZ_ASSERT(!mIndex);
  1.1357 +
  1.1358 +  mIndex = aIndex;
  1.1359 +}
  1.1360 +
  1.1361 +void
  1.1362 +IndexedDBIndexParent::ActorDestroy(ActorDestroyReason aWhy)
  1.1363 +{
  1.1364 +  if (mIndex) {
  1.1365 +    mIndex->SetActor(static_cast<IndexedDBIndexParent*>(nullptr));
  1.1366 +  }
  1.1367 +}
  1.1368 +
  1.1369 +bool
  1.1370 +IndexedDBIndexParent::RecvPIndexedDBRequestConstructor(
  1.1371 +                                              PIndexedDBRequestParent* aActor,
  1.1372 +                                              const IndexRequestParams& aParams)
  1.1373 +{
  1.1374 +  if (IsDisconnected()) {
  1.1375 +    // We're shutting down, ignore this request.
  1.1376 +    return true;
  1.1377 +  }
  1.1378 +
  1.1379 +  if (!mIndex) {
  1.1380 +    return true;
  1.1381 +  }
  1.1382 +
  1.1383 +  IndexedDBIndexRequestParent* actor =
  1.1384 +    static_cast<IndexedDBIndexRequestParent*>(aActor);
  1.1385 +
  1.1386 +  if (mIndex->ObjectStore()->Transaction()->Database()->IsInvalidated()) {
  1.1387 +    // If we've invalidated this database in the parent then we should bail out
  1.1388 +    // now to avoid logic problems that could force-kill the child.
  1.1389 +    return actor->Send__delete__(actor, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
  1.1390 +  }
  1.1391 +
  1.1392 +  switch (aParams.type()) {
  1.1393 +    case IndexRequestParams::TGetParams:
  1.1394 +      return actor->Get(aParams.get_GetParams());
  1.1395 +
  1.1396 +    case IndexRequestParams::TGetKeyParams:
  1.1397 +      return actor->GetKey(aParams.get_GetKeyParams());
  1.1398 +
  1.1399 +    case IndexRequestParams::TGetAllParams:
  1.1400 +      return actor->GetAll(aParams.get_GetAllParams());
  1.1401 +
  1.1402 +    case IndexRequestParams::TGetAllKeysParams:
  1.1403 +      return actor->GetAllKeys(aParams.get_GetAllKeysParams());
  1.1404 +
  1.1405 +    case IndexRequestParams::TCountParams:
  1.1406 +      return actor->Count(aParams.get_CountParams());
  1.1407 +
  1.1408 +    case IndexRequestParams::TOpenCursorParams:
  1.1409 +      return actor->OpenCursor(aParams.get_OpenCursorParams());
  1.1410 +
  1.1411 +    case IndexRequestParams::TOpenKeyCursorParams:
  1.1412 +      return actor->OpenKeyCursor(aParams.get_OpenKeyCursorParams());
  1.1413 +
  1.1414 +    default:
  1.1415 +      MOZ_CRASH("Unknown type!");
  1.1416 +  }
  1.1417 +
  1.1418 +  MOZ_CRASH("Should never get here!");
  1.1419 +}
  1.1420 +
  1.1421 +PIndexedDBRequestParent*
  1.1422 +IndexedDBIndexParent::AllocPIndexedDBRequestParent(const IndexRequestParams& aParams)
  1.1423 +{
  1.1424 +  return new IndexedDBIndexRequestParent(mIndex, aParams.type());
  1.1425 +}
  1.1426 +
  1.1427 +bool
  1.1428 +IndexedDBIndexParent::DeallocPIndexedDBRequestParent(PIndexedDBRequestParent* aActor)
  1.1429 +{
  1.1430 +  delete aActor;
  1.1431 +  return true;
  1.1432 +}
  1.1433 +
  1.1434 +PIndexedDBCursorParent*
  1.1435 +IndexedDBIndexParent::AllocPIndexedDBCursorParent(
  1.1436 +                                    const IndexCursorConstructorParams& aParams)
  1.1437 +{
  1.1438 +  MOZ_CRASH("Caller is supposed to manually construct a cursor!");
  1.1439 +}
  1.1440 +
  1.1441 +bool
  1.1442 +IndexedDBIndexParent::DeallocPIndexedDBCursorParent(PIndexedDBCursorParent* aActor)
  1.1443 +{
  1.1444 +  delete aActor;
  1.1445 +  return true;
  1.1446 +}
  1.1447 +
  1.1448 +/*******************************************************************************
  1.1449 + * IndexedDBRequestParentBase
  1.1450 + ******************************************************************************/
  1.1451 +
  1.1452 +IndexedDBRequestParentBase::IndexedDBRequestParentBase()
  1.1453 +{
  1.1454 +  MOZ_COUNT_CTOR(IndexedDBRequestParentBase);
  1.1455 +}
  1.1456 +
  1.1457 +IndexedDBRequestParentBase::~IndexedDBRequestParentBase()
  1.1458 +{
  1.1459 +  MOZ_COUNT_DTOR(IndexedDBRequestParentBase);
  1.1460 +}
  1.1461 +
  1.1462 +void
  1.1463 +IndexedDBRequestParentBase::ActorDestroy(ActorDestroyReason aWhy)
  1.1464 +{
  1.1465 +  if (mRequest) {
  1.1466 +    mRequest->SetActor(nullptr);
  1.1467 +  }
  1.1468 +}
  1.1469 +
  1.1470 +/*******************************************************************************
  1.1471 + * IndexedDBObjectStoreRequestParent
  1.1472 + ******************************************************************************/
  1.1473 +
  1.1474 +IndexedDBObjectStoreRequestParent::IndexedDBObjectStoreRequestParent(
  1.1475 +                                                   IDBObjectStore* aObjectStore,
  1.1476 +                                                   RequestType aRequestType)
  1.1477 +: mObjectStore(aObjectStore), mRequestType(aRequestType)
  1.1478 +{
  1.1479 +  MOZ_COUNT_CTOR(IndexedDBObjectStoreRequestParent);
  1.1480 +  // Sadly can't assert aObjectStore here...
  1.1481 +  MOZ_ASSERT(aRequestType > ParamsUnionType::T__None &&
  1.1482 +             aRequestType <= ParamsUnionType::T__Last);
  1.1483 +}
  1.1484 +
  1.1485 +IndexedDBObjectStoreRequestParent::~IndexedDBObjectStoreRequestParent()
  1.1486 +{
  1.1487 +  MOZ_COUNT_DTOR(IndexedDBObjectStoreRequestParent);
  1.1488 +}
  1.1489 +
  1.1490 +void
  1.1491 +IndexedDBObjectStoreRequestParent::ConvertBlobActors(
  1.1492 +                                  const InfallibleTArray<PBlobParent*>& aActors,
  1.1493 +                                  nsTArray<nsCOMPtr<nsIDOMBlob> >& aBlobs)
  1.1494 +{
  1.1495 +  MOZ_ASSERT(aBlobs.IsEmpty());
  1.1496 +  MOZ_ASSERT(mObjectStore);
  1.1497 +
  1.1498 +  if (!aActors.IsEmpty()) {
  1.1499 +    // Walk the chain to get to ContentParent.
  1.1500 +    MOZ_ASSERT(mObjectStore->Transaction()->Database()->GetContentParent());
  1.1501 +
  1.1502 +    uint32_t length = aActors.Length();
  1.1503 +    aBlobs.SetCapacity(length);
  1.1504 +
  1.1505 +    for (uint32_t index = 0; index < length; index++) {
  1.1506 +      BlobParent* actor = static_cast<BlobParent*>(aActors[index]);
  1.1507 +      nsCOMPtr<nsIDOMBlob> blob = actor->GetBlob();
  1.1508 +      aBlobs.AppendElement(blob);
  1.1509 +    }
  1.1510 +  }
  1.1511 +}
  1.1512 +
  1.1513 +bool
  1.1514 +IndexedDBObjectStoreRequestParent::IsDisconnected()
  1.1515 +{
  1.1516 +  MOZ_ASSERT(mObjectStore);
  1.1517 +  MOZ_ASSERT(mObjectStore->GetActorParent());
  1.1518 +  return mObjectStore->GetActorParent()->IsDisconnected();
  1.1519 +}
  1.1520 +
  1.1521 +bool
  1.1522 +IndexedDBObjectStoreRequestParent::Get(const GetParams& aParams)
  1.1523 +{
  1.1524 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetParams);
  1.1525 +  MOZ_ASSERT(mObjectStore);
  1.1526 +
  1.1527 +  nsRefPtr<IDBRequest> request;
  1.1528 +
  1.1529 +  nsRefPtr<IDBKeyRange> keyRange =
  1.1530 +    IDBKeyRange::FromSerializedKeyRange(aParams.keyRange());
  1.1531 +  MOZ_ASSERT(keyRange);
  1.1532 +
  1.1533 +  {
  1.1534 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1535 +
  1.1536 +    ErrorResult rv;
  1.1537 +    request = mObjectStore->GetInternal(keyRange, rv);
  1.1538 +    ENSURE_SUCCESS(rv, false);
  1.1539 +  }
  1.1540 +
  1.1541 +  request->SetActor(this);
  1.1542 +  mRequest.swap(request);
  1.1543 +
  1.1544 +  return true;
  1.1545 +}
  1.1546 +
  1.1547 +bool
  1.1548 +IndexedDBObjectStoreRequestParent::GetAll(const GetAllParams& aParams)
  1.1549 +{
  1.1550 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllParams);
  1.1551 +  MOZ_ASSERT(mObjectStore);
  1.1552 +
  1.1553 +  nsRefPtr<IDBRequest> request;
  1.1554 +
  1.1555 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1556 +
  1.1557 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1558 +
  1.1559 +  switch (keyRangeUnion.type()) {
  1.1560 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1561 +      keyRange =
  1.1562 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1563 +      break;
  1.1564 +
  1.1565 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1566 +      break;
  1.1567 +
  1.1568 +    default:
  1.1569 +      MOZ_CRASH("Unknown param type!");
  1.1570 +  }
  1.1571 +
  1.1572 +  {
  1.1573 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1574 +
  1.1575 +    ErrorResult rv;
  1.1576 +    request = mObjectStore->GetAllInternal(keyRange, aParams.limit(), rv);
  1.1577 +    ENSURE_SUCCESS(rv, false);
  1.1578 +  }
  1.1579 +
  1.1580 +  request->SetActor(this);
  1.1581 +  mRequest.swap(request);
  1.1582 +  return true;
  1.1583 +}
  1.1584 +
  1.1585 +bool
  1.1586 +IndexedDBObjectStoreRequestParent::GetAllKeys(const GetAllKeysParams& aParams)
  1.1587 +{
  1.1588 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllKeysParams);
  1.1589 +  MOZ_ASSERT(mObjectStore);
  1.1590 +
  1.1591 +  nsRefPtr<IDBRequest> request;
  1.1592 +
  1.1593 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1594 +
  1.1595 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1596 +
  1.1597 +  switch (keyRangeUnion.type()) {
  1.1598 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1599 +      keyRange =
  1.1600 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1601 +      break;
  1.1602 +
  1.1603 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1604 +      break;
  1.1605 +
  1.1606 +    default:
  1.1607 +      MOZ_CRASH("Unknown param type!");
  1.1608 +  }
  1.1609 +
  1.1610 +  {
  1.1611 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1612 +
  1.1613 +    ErrorResult rv;
  1.1614 +    request = mObjectStore->GetAllKeysInternal(keyRange, aParams.limit(), rv);
  1.1615 +    ENSURE_SUCCESS(rv, false);
  1.1616 +  }
  1.1617 +
  1.1618 +  request->SetActor(this);
  1.1619 +  mRequest.swap(request);
  1.1620 +  return true;
  1.1621 +}
  1.1622 +
  1.1623 +bool
  1.1624 +IndexedDBObjectStoreRequestParent::Add(const AddParams& aParams)
  1.1625 +{
  1.1626 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TAddParams);
  1.1627 +  MOZ_ASSERT(mObjectStore);
  1.1628 +
  1.1629 +  ipc::AddPutParams params = aParams.commonParams();
  1.1630 +
  1.1631 +  nsTArray<nsCOMPtr<nsIDOMBlob> > blobs;
  1.1632 +  ConvertBlobActors(params.blobsParent(), blobs);
  1.1633 +
  1.1634 +  nsRefPtr<IDBRequest> request;
  1.1635 +
  1.1636 +  {
  1.1637 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1638 +
  1.1639 +    nsresult rv =
  1.1640 +      mObjectStore->AddOrPutInternal(params.cloneInfo(), params.key(),
  1.1641 +                                     params.indexUpdateInfos(), blobs, false,
  1.1642 +                                     getter_AddRefs(request));
  1.1643 +    NS_ENSURE_SUCCESS(rv, false);
  1.1644 +  }
  1.1645 +
  1.1646 +  request->SetActor(this);
  1.1647 +  mRequest.swap(request);
  1.1648 +  return true;
  1.1649 +}
  1.1650 +
  1.1651 +bool
  1.1652 +IndexedDBObjectStoreRequestParent::Put(const PutParams& aParams)
  1.1653 +{
  1.1654 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TPutParams);
  1.1655 +  MOZ_ASSERT(mObjectStore);
  1.1656 +
  1.1657 +  ipc::AddPutParams params = aParams.commonParams();
  1.1658 +
  1.1659 +  nsTArray<nsCOMPtr<nsIDOMBlob> > blobs;
  1.1660 +  ConvertBlobActors(params.blobsParent(), blobs);
  1.1661 +
  1.1662 +  nsRefPtr<IDBRequest> request;
  1.1663 +
  1.1664 +  {
  1.1665 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1666 +
  1.1667 +    nsresult rv =
  1.1668 +      mObjectStore->AddOrPutInternal(params.cloneInfo(), params.key(),
  1.1669 +                                     params.indexUpdateInfos(), blobs, true,
  1.1670 +                                     getter_AddRefs(request));
  1.1671 +    NS_ENSURE_SUCCESS(rv, false);
  1.1672 +  }
  1.1673 +
  1.1674 +  request->SetActor(this);
  1.1675 +  mRequest.swap(request);
  1.1676 +  return true;
  1.1677 +}
  1.1678 +
  1.1679 +bool
  1.1680 +IndexedDBObjectStoreRequestParent::Delete(const DeleteParams& aParams)
  1.1681 +{
  1.1682 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TDeleteParams);
  1.1683 +  MOZ_ASSERT(mObjectStore);
  1.1684 +
  1.1685 +  nsRefPtr<IDBRequest> request;
  1.1686 +
  1.1687 +  nsRefPtr<IDBKeyRange> keyRange =
  1.1688 +    IDBKeyRange::FromSerializedKeyRange(aParams.keyRange());
  1.1689 +  MOZ_ASSERT(keyRange);
  1.1690 +
  1.1691 +  {
  1.1692 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1693 +
  1.1694 +    ErrorResult rv;
  1.1695 +    request = mObjectStore->DeleteInternal(keyRange, rv);
  1.1696 +    ENSURE_SUCCESS(rv, false);
  1.1697 +  }
  1.1698 +
  1.1699 +  request->SetActor(this);
  1.1700 +  mRequest.swap(request);
  1.1701 +  return true;
  1.1702 +}
  1.1703 +
  1.1704 +bool
  1.1705 +IndexedDBObjectStoreRequestParent::Clear(const ClearParams& aParams)
  1.1706 +{
  1.1707 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TClearParams);
  1.1708 +  MOZ_ASSERT(mObjectStore);
  1.1709 +
  1.1710 +  nsRefPtr<IDBRequest> request;
  1.1711 +
  1.1712 +  {
  1.1713 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1714 +
  1.1715 +    ErrorResult rv;
  1.1716 +    request = mObjectStore->Clear(rv);
  1.1717 +    ENSURE_SUCCESS(rv, false);
  1.1718 +  }
  1.1719 +
  1.1720 +  request->SetActor(this);
  1.1721 +  mRequest.swap(request);
  1.1722 +  return true;
  1.1723 +}
  1.1724 +
  1.1725 +bool
  1.1726 +IndexedDBObjectStoreRequestParent::Count(const CountParams& aParams)
  1.1727 +{
  1.1728 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TCountParams);
  1.1729 +  MOZ_ASSERT(mObjectStore);
  1.1730 +
  1.1731 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1732 +
  1.1733 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1734 +
  1.1735 +  switch (keyRangeUnion.type()) {
  1.1736 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1737 +      keyRange =
  1.1738 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1739 +      break;
  1.1740 +
  1.1741 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1742 +      break;
  1.1743 +
  1.1744 +    default:
  1.1745 +      MOZ_CRASH("Unknown param type!");
  1.1746 +  }
  1.1747 +
  1.1748 +  nsRefPtr<IDBRequest> request;
  1.1749 +
  1.1750 +  {
  1.1751 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1752 +
  1.1753 +    ErrorResult rv;
  1.1754 +    request = mObjectStore->CountInternal(keyRange, rv);
  1.1755 +    ENSURE_SUCCESS(rv, false);
  1.1756 +  }
  1.1757 +
  1.1758 +  request->SetActor(this);
  1.1759 +  mRequest.swap(request);
  1.1760 +  return true;
  1.1761 +}
  1.1762 +
  1.1763 +bool
  1.1764 +IndexedDBObjectStoreRequestParent::OpenCursor(const OpenCursorParams& aParams)
  1.1765 +{
  1.1766 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TOpenCursorParams);
  1.1767 +  MOZ_ASSERT(mObjectStore);
  1.1768 +
  1.1769 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1770 +
  1.1771 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1772 +
  1.1773 +  switch (keyRangeUnion.type()) {
  1.1774 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1775 +      keyRange =
  1.1776 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1777 +      break;
  1.1778 +
  1.1779 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1780 +      break;
  1.1781 +
  1.1782 +    default:
  1.1783 +      MOZ_CRASH("Unknown param type!");
  1.1784 +  }
  1.1785 +
  1.1786 +  size_t direction = static_cast<size_t>(aParams.direction());
  1.1787 +
  1.1788 +  nsRefPtr<IDBRequest> request;
  1.1789 +
  1.1790 +  {
  1.1791 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1792 +
  1.1793 +    ErrorResult rv;
  1.1794 +    request = mObjectStore->OpenCursorInternal(keyRange, direction, rv);
  1.1795 +    ENSURE_SUCCESS(rv, false);
  1.1796 +  }
  1.1797 +
  1.1798 +  request->SetActor(this);
  1.1799 +  mRequest.swap(request);
  1.1800 +  return true;
  1.1801 +}
  1.1802 +
  1.1803 +bool
  1.1804 +IndexedDBObjectStoreRequestParent::OpenKeyCursor(
  1.1805 +                                             const OpenKeyCursorParams& aParams)
  1.1806 +{
  1.1807 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TOpenKeyCursorParams);
  1.1808 +  MOZ_ASSERT(mObjectStore);
  1.1809 +
  1.1810 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1811 +
  1.1812 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1813 +
  1.1814 +  switch (keyRangeUnion.type()) {
  1.1815 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1816 +      keyRange =
  1.1817 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1818 +      break;
  1.1819 +
  1.1820 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1821 +      break;
  1.1822 +
  1.1823 +    default:
  1.1824 +      MOZ_CRASH("Unknown param type!");
  1.1825 +  }
  1.1826 +
  1.1827 +  size_t direction = static_cast<size_t>(aParams.direction());
  1.1828 +
  1.1829 +  nsRefPtr<IDBRequest> request;
  1.1830 +
  1.1831 +  {
  1.1832 +    AutoSetCurrentTransaction asct(mObjectStore->Transaction());
  1.1833 +
  1.1834 +    ErrorResult rv;
  1.1835 +    request = mObjectStore->OpenKeyCursorInternal(keyRange, direction, rv);
  1.1836 +    ENSURE_SUCCESS(rv, false);
  1.1837 +  }
  1.1838 +
  1.1839 +  request->SetActor(this);
  1.1840 +  mRequest.swap(request);
  1.1841 +  return true;
  1.1842 +}
  1.1843 +
  1.1844 +/*******************************************************************************
  1.1845 + * IndexedDBIndexRequestParent
  1.1846 + ******************************************************************************/
  1.1847 +
  1.1848 +IndexedDBIndexRequestParent::IndexedDBIndexRequestParent(
  1.1849 +                                                       IDBIndex* aIndex,
  1.1850 +                                                       RequestType aRequestType)
  1.1851 +: mIndex(aIndex), mRequestType(aRequestType)
  1.1852 +{
  1.1853 +  MOZ_COUNT_CTOR(IndexedDBIndexRequestParent);
  1.1854 +  // Sadly can't assert aIndex here...
  1.1855 +  MOZ_ASSERT(aRequestType > ParamsUnionType::T__None &&
  1.1856 +             aRequestType <= ParamsUnionType::T__Last);
  1.1857 +}
  1.1858 +
  1.1859 +IndexedDBIndexRequestParent::~IndexedDBIndexRequestParent()
  1.1860 +{
  1.1861 +  MOZ_COUNT_DTOR(IndexedDBIndexRequestParent);
  1.1862 +}
  1.1863 +
  1.1864 +bool
  1.1865 +IndexedDBIndexRequestParent::IsDisconnected()
  1.1866 +{
  1.1867 +  MOZ_ASSERT(mIndex);
  1.1868 +  MOZ_ASSERT(mIndex->GetActorParent());
  1.1869 +  return mIndex->GetActorParent()->IsDisconnected();
  1.1870 +}
  1.1871 +
  1.1872 +bool
  1.1873 +IndexedDBIndexRequestParent::Get(const GetParams& aParams)
  1.1874 +{
  1.1875 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetParams);
  1.1876 +  MOZ_ASSERT(mIndex);
  1.1877 +
  1.1878 +  nsRefPtr<IDBRequest> request;
  1.1879 +
  1.1880 +  nsRefPtr<IDBKeyRange> keyRange =
  1.1881 +    IDBKeyRange::FromSerializedKeyRange(aParams.keyRange());
  1.1882 +  MOZ_ASSERT(keyRange);
  1.1883 +
  1.1884 +  {
  1.1885 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.1886 +
  1.1887 +    ErrorResult rv;
  1.1888 +    request = mIndex->GetInternal(keyRange, rv);
  1.1889 +    ENSURE_SUCCESS(rv, false);
  1.1890 +  }
  1.1891 +
  1.1892 +  request->SetActor(this);
  1.1893 +  mRequest.swap(request);
  1.1894 +  return true;
  1.1895 +}
  1.1896 +
  1.1897 +bool
  1.1898 +IndexedDBIndexRequestParent::GetKey(const GetKeyParams& aParams)
  1.1899 +{
  1.1900 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetKeyParams);
  1.1901 +  MOZ_ASSERT(mIndex);
  1.1902 +
  1.1903 +  nsRefPtr<IDBRequest> request;
  1.1904 +
  1.1905 +  nsRefPtr<IDBKeyRange> keyRange =
  1.1906 +    IDBKeyRange::FromSerializedKeyRange(aParams.keyRange());
  1.1907 +  MOZ_ASSERT(keyRange);
  1.1908 +
  1.1909 +  {
  1.1910 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.1911 +
  1.1912 +    ErrorResult rv;
  1.1913 +    request = mIndex->GetKeyInternal(keyRange, rv);
  1.1914 +    ENSURE_SUCCESS(rv, false);
  1.1915 +  }
  1.1916 +
  1.1917 +  request->SetActor(this);
  1.1918 +  mRequest.swap(request);
  1.1919 +  return true;
  1.1920 +}
  1.1921 +
  1.1922 +bool
  1.1923 +IndexedDBIndexRequestParent::GetAll(const GetAllParams& aParams)
  1.1924 +{
  1.1925 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllParams);
  1.1926 +  MOZ_ASSERT(mIndex);
  1.1927 +
  1.1928 +  nsRefPtr<IDBRequest> request;
  1.1929 +
  1.1930 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1931 +
  1.1932 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1933 +
  1.1934 +  switch (keyRangeUnion.type()) {
  1.1935 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1936 +      keyRange =
  1.1937 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1938 +      break;
  1.1939 +
  1.1940 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1941 +      break;
  1.1942 +
  1.1943 +    default:
  1.1944 +      MOZ_CRASH("Unknown param type!");
  1.1945 +  }
  1.1946 +
  1.1947 +  {
  1.1948 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.1949 +
  1.1950 +    ErrorResult rv;
  1.1951 +    request = mIndex->GetAllInternal(keyRange, aParams.limit(), rv);
  1.1952 +    ENSURE_SUCCESS(rv, false);
  1.1953 +  }
  1.1954 +
  1.1955 +  request->SetActor(this);
  1.1956 +  mRequest.swap(request);
  1.1957 +  return true;
  1.1958 +}
  1.1959 +
  1.1960 +bool
  1.1961 +IndexedDBIndexRequestParent::GetAllKeys(const GetAllKeysParams& aParams)
  1.1962 +{
  1.1963 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllKeysParams);
  1.1964 +  MOZ_ASSERT(mIndex);
  1.1965 +
  1.1966 +  nsRefPtr<IDBRequest> request;
  1.1967 +
  1.1968 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.1969 +
  1.1970 +  nsRefPtr<IDBKeyRange> keyRange;
  1.1971 +
  1.1972 +  switch (keyRangeUnion.type()) {
  1.1973 +    case ipc::OptionalKeyRange::TKeyRange:
  1.1974 +      keyRange =
  1.1975 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.1976 +      break;
  1.1977 +
  1.1978 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.1979 +      break;
  1.1980 +
  1.1981 +    default:
  1.1982 +      MOZ_CRASH("Unknown param type!");
  1.1983 +  }
  1.1984 +
  1.1985 +  {
  1.1986 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.1987 +
  1.1988 +    ErrorResult rv;
  1.1989 +    request = mIndex->GetAllKeysInternal(keyRange, aParams.limit(), rv);
  1.1990 +    ENSURE_SUCCESS(rv, false);
  1.1991 +  }
  1.1992 +
  1.1993 +  request->SetActor(this);
  1.1994 +  mRequest.swap(request);
  1.1995 +  return true;
  1.1996 +}
  1.1997 +
  1.1998 +bool
  1.1999 +IndexedDBIndexRequestParent::Count(const CountParams& aParams)
  1.2000 +{
  1.2001 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TCountParams);
  1.2002 +  MOZ_ASSERT(mIndex);
  1.2003 +
  1.2004 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.2005 +
  1.2006 +  nsRefPtr<IDBKeyRange> keyRange;
  1.2007 +
  1.2008 +  switch (keyRangeUnion.type()) {
  1.2009 +    case ipc::OptionalKeyRange::TKeyRange:
  1.2010 +      keyRange =
  1.2011 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.2012 +      break;
  1.2013 +
  1.2014 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.2015 +      break;
  1.2016 +
  1.2017 +    default:
  1.2018 +      MOZ_CRASH("Unknown param type!");
  1.2019 +  }
  1.2020 +
  1.2021 +  nsRefPtr<IDBRequest> request;
  1.2022 +
  1.2023 +  {
  1.2024 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.2025 +
  1.2026 +    ErrorResult rv;
  1.2027 +    request = mIndex->CountInternal(keyRange, rv);
  1.2028 +    ENSURE_SUCCESS(rv, false);
  1.2029 +  }
  1.2030 +
  1.2031 +  request->SetActor(this);
  1.2032 +  mRequest.swap(request);
  1.2033 +  return true;
  1.2034 +}
  1.2035 +
  1.2036 +bool
  1.2037 +IndexedDBIndexRequestParent::OpenCursor(const OpenCursorParams& aParams)
  1.2038 +{
  1.2039 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TOpenCursorParams);
  1.2040 +  MOZ_ASSERT(mIndex);
  1.2041 +
  1.2042 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.2043 +
  1.2044 +  nsRefPtr<IDBKeyRange> keyRange;
  1.2045 +
  1.2046 +  switch (keyRangeUnion.type()) {
  1.2047 +    case ipc::OptionalKeyRange::TKeyRange:
  1.2048 +      keyRange =
  1.2049 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.2050 +      break;
  1.2051 +
  1.2052 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.2053 +      break;
  1.2054 +
  1.2055 +    default:
  1.2056 +      MOZ_CRASH("Unknown param type!");
  1.2057 +  }
  1.2058 +
  1.2059 +  size_t direction = static_cast<size_t>(aParams.direction());
  1.2060 +
  1.2061 +  nsRefPtr<IDBRequest> request;
  1.2062 +
  1.2063 +  {
  1.2064 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.2065 +
  1.2066 +    nsresult rv =
  1.2067 +      mIndex->OpenCursorInternal(keyRange, direction, getter_AddRefs(request));
  1.2068 +    NS_ENSURE_SUCCESS(rv, false);
  1.2069 +  }
  1.2070 +
  1.2071 +  request->SetActor(this);
  1.2072 +  mRequest.swap(request);
  1.2073 +  return true;
  1.2074 +}
  1.2075 +
  1.2076 +bool
  1.2077 +IndexedDBIndexRequestParent::OpenKeyCursor(const OpenKeyCursorParams& aParams)
  1.2078 +{
  1.2079 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TOpenKeyCursorParams);
  1.2080 +  MOZ_ASSERT(mIndex);
  1.2081 +
  1.2082 +  const ipc::OptionalKeyRange keyRangeUnion = aParams.optionalKeyRange();
  1.2083 +
  1.2084 +  nsRefPtr<IDBKeyRange> keyRange;
  1.2085 +
  1.2086 +  switch (keyRangeUnion.type()) {
  1.2087 +    case ipc::OptionalKeyRange::TKeyRange:
  1.2088 +      keyRange =
  1.2089 +        IDBKeyRange::FromSerializedKeyRange(keyRangeUnion.get_KeyRange());
  1.2090 +      break;
  1.2091 +
  1.2092 +    case ipc::OptionalKeyRange::Tvoid_t:
  1.2093 +      break;
  1.2094 +
  1.2095 +    default:
  1.2096 +      MOZ_CRASH("Unknown param type!");
  1.2097 +  }
  1.2098 +
  1.2099 +  size_t direction = static_cast<size_t>(aParams.direction());
  1.2100 +
  1.2101 +  nsRefPtr<IDBRequest> request;
  1.2102 +
  1.2103 +  {
  1.2104 +    AutoSetCurrentTransaction asct(mIndex->ObjectStore()->Transaction());
  1.2105 +
  1.2106 +    ErrorResult rv;
  1.2107 +    request = mIndex->OpenKeyCursorInternal(keyRange, direction, rv);
  1.2108 +    ENSURE_SUCCESS(rv, false);
  1.2109 +  }
  1.2110 +
  1.2111 +  request->SetActor(this);
  1.2112 +  mRequest.swap(request);
  1.2113 +  return true;
  1.2114 +}
  1.2115 +
  1.2116 +/*******************************************************************************
  1.2117 + * IndexedDBCursorRequestParent
  1.2118 + ******************************************************************************/
  1.2119 +
  1.2120 +IndexedDBCursorRequestParent::IndexedDBCursorRequestParent(
  1.2121 +                                                       IDBCursor* aCursor,
  1.2122 +                                                       RequestType aRequestType)
  1.2123 +: mCursor(aCursor), mRequestType(aRequestType)
  1.2124 +{
  1.2125 +  MOZ_COUNT_CTOR(IndexedDBCursorRequestParent);
  1.2126 +  MOZ_ASSERT(aCursor);
  1.2127 +  MOZ_ASSERT(aRequestType > ParamsUnionType::T__None &&
  1.2128 +             aRequestType <= ParamsUnionType::T__Last);
  1.2129 +}
  1.2130 +
  1.2131 +IndexedDBCursorRequestParent::~IndexedDBCursorRequestParent()
  1.2132 +{
  1.2133 +  MOZ_COUNT_DTOR(IndexedDBCursorRequestParent);
  1.2134 +}
  1.2135 +
  1.2136 +bool
  1.2137 +IndexedDBCursorRequestParent::IsDisconnected()
  1.2138 +{
  1.2139 +  MOZ_ASSERT(mCursor);
  1.2140 +  MOZ_ASSERT(mCursor->GetActorParent());
  1.2141 +  return mCursor->GetActorParent()->IsDisconnected();
  1.2142 +}
  1.2143 +
  1.2144 +bool
  1.2145 +IndexedDBCursorRequestParent::Continue(const ContinueParams& aParams)
  1.2146 +{
  1.2147 +  MOZ_ASSERT(mCursor);
  1.2148 +  MOZ_ASSERT(mRequestType == ParamsUnionType::TContinueParams);
  1.2149 +
  1.2150 +  {
  1.2151 +    AutoSetCurrentTransaction asct(mCursor->Transaction());
  1.2152 +
  1.2153 +    ErrorResult rv;
  1.2154 +    mCursor->ContinueInternal(aParams.key(), aParams.count(), rv);
  1.2155 +    ENSURE_SUCCESS(rv, false);
  1.2156 +  }
  1.2157 +
  1.2158 +  mRequest = mCursor->Request();
  1.2159 +  MOZ_ASSERT(mRequest);
  1.2160 +
  1.2161 +  mRequest->SetActor(this);
  1.2162 +  return true;
  1.2163 +}
  1.2164 +
  1.2165 +/*******************************************************************************
  1.2166 + * IndexedDBDeleteDatabaseRequestParent
  1.2167 + ******************************************************************************/
  1.2168 +
  1.2169 +IndexedDBDeleteDatabaseRequestParent::IndexedDBDeleteDatabaseRequestParent(
  1.2170 +                                                           IDBFactory* aFactory)
  1.2171 +: mEventListener(MOZ_THIS_IN_INITIALIZER_LIST()), mFactory(aFactory)
  1.2172 +{
  1.2173 +  MOZ_COUNT_CTOR(IndexedDBDeleteDatabaseRequestParent);
  1.2174 +  MOZ_ASSERT(aFactory);
  1.2175 +}
  1.2176 +
  1.2177 +IndexedDBDeleteDatabaseRequestParent::~IndexedDBDeleteDatabaseRequestParent()
  1.2178 +{
  1.2179 +  MOZ_COUNT_DTOR(IndexedDBDeleteDatabaseRequestParent);
  1.2180 +}
  1.2181 +
  1.2182 +nsresult
  1.2183 +IndexedDBDeleteDatabaseRequestParent::HandleEvent(nsIDOMEvent* aEvent)
  1.2184 +{
  1.2185 +  MOZ_ASSERT(aEvent);
  1.2186 +
  1.2187 +  if (IsDisconnected()) {
  1.2188 +    // We're shutting down, ignore this event.
  1.2189 +    return NS_OK;
  1.2190 +  }
  1.2191 +
  1.2192 +  nsString type;
  1.2193 +  nsresult rv = aEvent->GetType(type);
  1.2194 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2195 +
  1.2196 +  if (type.EqualsASCII(BLOCKED_EVT_STR)) {
  1.2197 +    nsCOMPtr<IDBVersionChangeEvent> event = do_QueryInterface(aEvent);
  1.2198 +    MOZ_ASSERT(event);
  1.2199 +
  1.2200 +    uint64_t currentVersion = event->OldVersion();
  1.2201 +
  1.2202 +    if (!SendBlocked(currentVersion)) {
  1.2203 +      return NS_ERROR_FAILURE;
  1.2204 +    }
  1.2205 +
  1.2206 +    return NS_OK;
  1.2207 +  }
  1.2208 +
  1.2209 +#ifdef DEBUG
  1.2210 +  if (type.EqualsASCII(SUCCESS_EVT_STR)) {
  1.2211 +    MOZ_ASSERT(NS_SUCCEEDED(mOpenRequest->GetErrorCode()));
  1.2212 +  }
  1.2213 +  else {
  1.2214 +    MOZ_ASSERT(type.EqualsASCII(ERROR_EVT_STR));
  1.2215 +    MOZ_ASSERT(NS_FAILED(mOpenRequest->GetErrorCode()));
  1.2216 +  }
  1.2217 +#endif
  1.2218 +
  1.2219 +  if (!Send__delete__(this, mOpenRequest->GetErrorCode())) {
  1.2220 +    return NS_ERROR_FAILURE;
  1.2221 +  }
  1.2222 +
  1.2223 +  return NS_OK;
  1.2224 +}
  1.2225 +
  1.2226 +nsresult
  1.2227 +IndexedDBDeleteDatabaseRequestParent::SetOpenRequest(
  1.2228 +                                                 IDBOpenDBRequest* aOpenRequest)
  1.2229 +{
  1.2230 +  MOZ_ASSERT(aOpenRequest);
  1.2231 +  MOZ_ASSERT(!mOpenRequest);
  1.2232 +
  1.2233 +  EventTarget* target = static_cast<EventTarget*>(aOpenRequest);
  1.2234 +
  1.2235 +  nsresult rv = target->AddEventListener(NS_LITERAL_STRING(SUCCESS_EVT_STR),
  1.2236 +                                         mEventListener, false);
  1.2237 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2238 +
  1.2239 +  rv = target->AddEventListener(NS_LITERAL_STRING(ERROR_EVT_STR),
  1.2240 +                                mEventListener, false);
  1.2241 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2242 +
  1.2243 +  rv = target->AddEventListener(NS_LITERAL_STRING(BLOCKED_EVT_STR),
  1.2244 +                                mEventListener, false);
  1.2245 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2246 +
  1.2247 +  mOpenRequest = aOpenRequest;
  1.2248 +  return NS_OK;
  1.2249 +}
  1.2250 +
  1.2251 +/*******************************************************************************
  1.2252 + * WeakEventListener
  1.2253 + ******************************************************************************/
  1.2254 +
  1.2255 + NS_IMPL_ISUPPORTS(WeakEventListenerBase, nsIDOMEventListener)
  1.2256 +
  1.2257 + NS_IMETHODIMP
  1.2258 + WeakEventListenerBase::HandleEvent(nsIDOMEvent* aEvent)
  1.2259 +{
  1.2260 +  MOZ_CRASH("This must be overridden!");
  1.2261 +}

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