| // 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 "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "content/public/browser/browser_message_filter.h" |
| #include "webkit/browser/dom_storage/dom_storage_context.h" |
| #include "webkit/common/dom_storage/dom_storage_types.h" |
| |
| class GURL; |
| |
| namespace base { |
| class NullableString16; |
| } |
| |
| namespace dom_storage { |
| class DomStorageArea; |
| class DomStorageContext; |
| class DomStorageHost; |
| } |
| |
| namespace content { |
| class DOMStorageContextImpl; |
| |
| // 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 dom_storage::DomStorageContext::EventObserver { |
| public: |
| explicit DOMStorageMessageFilter(int unused, DOMStorageContextImpl* context); |
| |
| private: |
| virtual ~DOMStorageMessageFilter(); |
| |
| void InitializeInSequence(); |
| void UninitializeInSequence(); |
| |
| // BrowserMessageFilter implementation |
| virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE; |
| virtual void OnFilterRemoved() OVERRIDE; |
| virtual base::TaskRunner* OverrideTaskRunnerForMessage( |
| const IPC::Message& message) OVERRIDE; |
| virtual bool OnMessageReceived(const IPC::Message& message, |
| bool* message_was_ok) OVERRIDE; |
| |
| // Message Handlers. |
| void OnOpenStorageArea(int connection_id, int64 namespace_id, |
| const GURL& origin); |
| void OnCloseStorageArea(int connection_id); |
| void OnLoadStorageArea(int connection_id, dom_storage::ValuesMap* map); |
| void OnSetItem(int connection_id, const string16& key, |
| const string16& value, const GURL& page_url); |
| void OnRemoveItem(int connection_id, const string16& key, |
| const GURL& page_url); |
| void OnClear(int connection_id, const GURL& page_url); |
| void OnFlushMessages(); |
| |
| // DomStorageContext::EventObserver implementation which |
| // sends events back to our renderer process. |
| virtual void OnDomStorageItemSet( |
| const dom_storage::DomStorageArea* area, |
| const string16& key, |
| const string16& new_value, |
| const base::NullableString16& old_value, |
| const GURL& page_url) OVERRIDE; |
| virtual void OnDomStorageItemRemoved( |
| const dom_storage::DomStorageArea* area, |
| const string16& key, |
| const string16& old_value, |
| const GURL& page_url) OVERRIDE; |
| virtual void OnDomStorageAreaCleared( |
| const dom_storage::DomStorageArea* area, |
| const GURL& page_url) OVERRIDE; |
| |
| void SendDomStorageEvent( |
| const dom_storage::DomStorageArea* area, |
| const GURL& page_url, |
| const base::NullableString16& key, |
| const base::NullableString16& new_value, |
| const base::NullableString16& old_value); |
| |
| scoped_refptr<dom_storage::DomStorageContext> context_; |
| scoped_ptr<dom_storage::DomStorageHost> host_; |
| int connection_dispatching_message_for_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageMessageFilter); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_MESSAGE_FILTER_H_ |