Port IndexedDB open() and database callbacks to Mojo.

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

 /*
  * Copyright (C) 2012 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 12 matching lines @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "modules/indexeddb/IDBOpenDBRequest.h"
 
 #include "bindings/core/v8/Nullable.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/indexeddb/IDBDatabase.h"
-#include "modules/indexeddb/IDBDatabaseCallbacks.h"
 #include "modules/indexeddb/IDBTracing.h"
 #include "modules/indexeddb/IDBVersionChangeEvent.h"
 #include <memory>
 
 using blink::WebIDBDatabase;
 
 namespace blink {
 
-IDBOpenDBRequest* IDBOpenDBRequest::create(ScriptState* scriptState, IDBDatabaseCallbacks* callbacks, int64_t transactionId, int64_t version)
+IDBOpenDBRequest* IDBOpenDBRequest::create(ScriptState* scriptState, int64_t transactionId, int64_t version)
 {
-    IDBOpenDBRequest* request = new IDBOpenDBRequest(scriptState, callbacks, transactionId, version);
+    IDBOpenDBRequest* request = new IDBOpenDBRequest(scriptState, transactionId, version);
     request->suspendIfNeeded();
     return request;
 }
 
-IDBOpenDBRequest::IDBOpenDBRequest(ScriptState* scriptState, IDBDatabaseCallbacks* callbacks, int64_t transactionId, int64_t version)
+IDBOpenDBRequest::IDBOpenDBRequest(ScriptState* scriptState, int64_t transactionId, int64_t version)
     : IDBRequest(scriptState, IDBAny::createNull(), nullptr)
-    , m_databaseCallbacks(callbacks)
     , m_transactionId(transactionId)
     , m_version(version)
 {
-    ASSERT(!resultAsAny());
+    DCHECK(!resultAsAny());
 }
 
 IDBOpenDBRequest::~IDBOpenDBRequest()
 {
 }
 
 DEFINE_TRACE(IDBOpenDBRequest)
 {
-    visitor->trace(m_databaseCallbacks);
     IDBRequest::trace(visitor);
 }
 
+void IDBOpenDBRequest::setClientRequest(indexed_db::mojom::blink::DatabaseClientAssociatedRequest clientRequest)
+{
+    DCHECK(!m_clientRequest.is_pending());
+    m_clientRequest = std::move(clientRequest);
+}
+
 const AtomicString& IDBOpenDBRequest::interfaceName() const
 {
     return EventTargetNames::IDBOpenDBRequest;
 }
 
 void IDBOpenDBRequest::onBlocked(int64_t oldVersion)
 {
     IDB_TRACE("IDBOpenDBRequest::onBlocked()");
     if (!shouldEnqueueEvent())
         return;
     Nullable<unsigned long long> newVersionNullable = (m_version == IDBDatabaseMetadata::DefaultVersion) ? Nullable<unsigned long long>() : Nullable<unsigned long long>(m_version);
     enqueueEvent(IDBVersionChangeEvent::create(EventTypeNames::blocked, oldVersion, newVersionNullable));
 }
 
 void IDBOpenDBRequest::onUpgradeNeeded(int64_t oldVersion, std::unique_ptr<WebIDBDatabase> backend, const IDBDatabaseMetadata& metadata, WebIDBDataLoss dataLoss, String dataLossMessage)
 {
     IDB_TRACE("IDBOpenDBRequest::onUpgradeNeeded()");
     if (m_contextStopped || !getExecutionContext()) {
         std::unique_ptr<WebIDBDatabase> db = std::move(backend);
         db->abort(m_transactionId);
         db->close();
         return;
     }
     if (!shouldEnqueueEvent())
         return;
 
-    ASSERT(m_databaseCallbacks);
+    DCHECK(m_clientRequest.is_pending());
 
-    IDBDatabase* idbDatabase = IDBDatabase::create(getExecutionContext(), std::move(backend), m_databaseCallbacks.release());
+    IDBDatabase* idbDatabase = IDBDatabase::create(getExecutionContext(), std::move(backend), std::move(m_clientRequest));
     idbDatabase->setMetadata(metadata);
 
     if (oldVersion == IDBDatabaseMetadata::NoVersion) {
         // This database hasn't had a version before.
         oldVersion = IDBDatabaseMetadata::DefaultVersion;
     }
     IDBDatabaseMetadata oldMetadata(metadata);
     oldMetadata.version = oldVersion;
 
     m_transaction = IDBTransaction::create(getScriptState(), m_transactionId, idbDatabase, this, oldMetadata);
@@ skipping 12 matching lines @@
         if (db)
             db->close();
         return;
     }
     if (!shouldEnqueueEvent())
         return;
 
     IDBDatabase* idbDatabase = nullptr;
     if (resultAsAny()) {
         // Previous onUpgradeNeeded call delivered the backend.
-        ASSERT(!backend.get());
+        DCHECK(!backend.get());
         idbDatabase = resultAsAny()->idbDatabase();
-        ASSERT(idbDatabase);
-        ASSERT(!m_databaseCallbacks);
+        DCHECK(idbDatabase);
+        DCHECK(!m_clientRequest.is_pending());
     } else {
-        ASSERT(backend.get());
-        ASSERT(m_databaseCallbacks);
-        idbDatabase = IDBDatabase::create(getExecutionContext(), std::move(backend), m_databaseCallbacks.release());
+        DCHECK(backend.get());
+        DCHECK(m_clientRequest.is_pending());
+        idbDatabase = IDBDatabase::create(getExecutionContext(), std::move(backend), std::move(m_clientRequest));
         setResult(IDBAny::create(idbDatabase));
     }
     idbDatabase->setMetadata(metadata);
     enqueueEvent(Event::create(EventTypeNames::success));
 }
 
 void IDBOpenDBRequest::onSuccess(int64_t oldVersion)
 {
     IDB_TRACE("IDBOpenDBRequest::onSuccess()");
     if (!shouldEnqueueEvent())
         return;
     if (oldVersion == IDBDatabaseMetadata::NoVersion) {
         // This database hasn't had an integer version before.
         oldVersion = IDBDatabaseMetadata::DefaultVersion;
     }
     setResult(IDBAny::createUndefined());
     enqueueEvent(IDBVersionChangeEvent::create(EventTypeNames::success, oldVersion, Nullable<unsigned long long>()));
 }
 
 bool IDBOpenDBRequest::shouldEnqueueEvent() const
 {
     if (m_contextStopped || !getExecutionContext())
         return false;
-    ASSERT(m_readyState == PENDING || m_readyState == DONE);
+    DCHECK(m_readyState == PENDING || m_readyState == DONE);
     if (m_requestAborted)
         return false;
     return true;
 }
 
 DispatchEventResult IDBOpenDBRequest::dispatchEventInternal(Event* event)
 {
     // If the connection closed between onUpgradeNeeded and the delivery of the "success" event,
     // an "error" event should be fired instead.
     if (event->type() == EventTypeNames::success && resultAsAny()->getType() == IDBAny::IDBDatabaseType && resultAsAny()->idbDatabase()->isClosePending()) {
         dequeueEvent(event);
         setResult(nullptr);
         onError(DOMException::create(AbortError, "The connection was closed."));
         return DispatchEventResult::CanceledBeforeDispatch;
     }
 
     return IDBRequest::dispatchEventInternal(event);
 }
 
 } // namespace blink