| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_MESSAGE_FILTER_H_ |
| #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_MESSAGE_FILTER_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "content/browser/dom_storage/dom_storage_context_impl.h" |
| #include "content/common/dom_storage/dom_storage_types.h" |
| #include "content/public/browser/browser_message_filter.h" |
| |
| class GURL; |
| |
| namespace base { |
| class NullableString16; |
| } |
| |
| namespace content { |
| |
| class DOMStorageArea; |
| class DOMStorageContextImpl; |
| class DOMStorageContextWrapper; |
| class DOMStorageHost; |
| |
| // This class handles the logistics of DOM Storage within the browser process. |
| // It mostly ferries information between IPCs and the dom_storage classes. |
| class DOMStorageMessageFilter |
| : public BrowserMessageFilter, |
| public DOMStorageContextImpl::EventObserver { |
| public: |
| explicit DOMStorageMessageFilter(DOMStorageContextWrapper* context); |
| |
| private: |
| ~DOMStorageMessageFilter() override; |
| |
| void InitializeInSequence(); |
| void UninitializeInSequence(); |
| |
| // BrowserMessageFilter implementation |
| void OnFilterAdded(IPC::Channel* channel) override; |
| void OnFilterRemoved() override; |
| base::TaskRunner* OverrideTaskRunnerForMessage( |
| const IPC::Message& message) override; |
| bool OnMessageReceived(const IPC::Message& message) override; |
| |
| // Message Handlers. |
| void OnOpenStorageArea(int connection_id, |
| const std::string& namespace_id, |
| const GURL& origin); |
| void OnCloseStorageArea(int connection_id); |
| void OnLoadStorageArea(int connection_id, DOMStorageValuesMap* map); |
| void OnSetItem(int connection_id, |
| const base::string16& key, |
| const base::string16& value, |
| const base::NullableString16& client_old_value, |
| const GURL& page_url); |
| void OnRemoveItem(int connection_id, |
| const base::string16& key, |
| const base::NullableString16& client_old_value, |
| const GURL& page_url); |
| void OnClear(int connection_id, const GURL& page_url); |
| void OnFlushMessages(); |
| |
| // DOMStorageContextImpl::EventObserver implementation which |
| // sends events back to our renderer process. |
| void OnDOMStorageItemSet(const DOMStorageArea* area, |
| const base::string16& key, |
| const base::string16& new_value, |
| const base::NullableString16& old_value, |
| const GURL& page_url) override; |
| void OnDOMStorageItemRemoved(const DOMStorageArea* area, |
| const base::string16& key, |
| const base::string16& old_value, |
| const GURL& page_url) override; |
| void OnDOMStorageAreaCleared(const DOMStorageArea* area, |
| const GURL& page_url) override; |
| |
| void SendDOMStorageEvent( |
| const DOMStorageArea* area, |
| const GURL& page_url, |
| const base::NullableString16& key, |
| const base::NullableString16& new_value, |
| const base::NullableString16& old_value); |
| |
| scoped_refptr<DOMStorageContextImpl> context_; |
| std::unique_ptr<DOMStorageHost> host_; |
| int connection_dispatching_message_for_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageMessageFilter); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_MESSAGE_FILTER_H_ |