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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/indexeddb/global_indexed_db.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/workers/worker_global_scope.h"
#include "third_party/blink/renderer/modules/indexeddb/idb_factory.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace blink {
namespace {
template <typename T>
class GlobalIndexedDBImpl final
: public GarbageCollected<GlobalIndexedDBImpl<T>>,
public Supplement<T> {
public:
static const char kSupplementName[];
static GlobalIndexedDBImpl& From(T& supplementable) {
GlobalIndexedDBImpl* supplement =
Supplement<T>::template From<GlobalIndexedDBImpl>(supplementable);
if (!supplement) {
supplement = MakeGarbageCollected<GlobalIndexedDBImpl>(supplementable);
Supplement<T>::ProvideTo(supplementable, supplement);
}
return *supplement;
}
explicit GlobalIndexedDBImpl(T& supplementable)
: Supplement<T>(supplementable) {}
IDBFactory* IdbFactory(ExecutionContext* context) {
if (!idb_factory_)
idb_factory_ = MakeGarbageCollected<IDBFactory>(context);
return idb_factory_.Get();
}
void Trace(Visitor* visitor) const override {
visitor->Trace(idb_factory_);
Supplement<T>::Trace(visitor);
}
private:
Member<IDBFactory> idb_factory_;
};
// static
template <typename T>
const char GlobalIndexedDBImpl<T>::kSupplementName[] = "GlobalIndexedDBImpl";
} // namespace
IDBFactory* GlobalIndexedDB::indexedDB(LocalDOMWindow& window) {
return GlobalIndexedDBImpl<LocalDOMWindow>::From(window).IdbFactory(&window);
}
IDBFactory* GlobalIndexedDB::indexedDB(WorkerGlobalScope& worker) {
return GlobalIndexedDBImpl<WorkerGlobalScope>::From(worker).IdbFactory(
&worker);
}
} // namespace blink
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