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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_DOM_WINDOW_STORAGE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_DOM_WINDOW_STORAGE_H_
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "third_party/blink/public/mojom/dom_storage/storage_area.mojom-blink-forward.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace blink {
class ExceptionState;
class LocalDOMWindow;
class StorageArea;
class DOMWindowStorage final : public GarbageCollected<DOMWindowStorage>,
public Supplement<LocalDOMWindow> {
public:
static const char kSupplementName[];
static DOMWindowStorage& From(LocalDOMWindow&);
static StorageArea* sessionStorage(LocalDOMWindow&, ExceptionState&);
static StorageArea* localStorage(LocalDOMWindow&, ExceptionState&);
explicit DOMWindowStorage(LocalDOMWindow&);
StorageArea* sessionStorage(ExceptionState&) const;
StorageArea* localStorage(ExceptionState&) const;
StorageArea* OptionalSessionStorage() const { return session_storage_.Get(); }
StorageArea* OptionalLocalStorage() const { return local_storage_.Get(); }
// These Init* methods allow initializing the StorageArea as an optimization
// to avoid it being requested from the browser process, which can be slow.
// These storage areas are ignored if a cached storage area already exists for
// this storage key/namespace.
void InitLocalStorage(
mojo::PendingRemote<mojom::blink::StorageArea> local_storage_area) const;
void InitSessionStorage(mojo::PendingRemote<mojom::blink::StorageArea>
session_storage_area) const;
void Trace(Visitor*) const override;
private:
StorageArea* GetOrCreateSessionStorage(
ExceptionState& exception_state,
mojo::PendingRemote<mojom::blink::StorageArea> storage_area_for_init)
const;
StorageArea* GetOrCreateLocalStorage(
ExceptionState& exception_state,
mojo::PendingRemote<mojom::blink::StorageArea> storage_area_for_init)
const;
mutable Member<StorageArea> session_storage_;
mutable Member<StorageArea> local_storage_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_DOM_WINDOW_STORAGE_H_
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