81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CEF_LIBCEF_BROWSER_DOM_STORAGE_SYSTEM_H_
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#define CEF_LIBCEF_BROWSER_DOM_STORAGE_SYSTEM_H_
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#pragma once
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#include "base/memory/scoped_ptr.h"
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#include "base/memory/weak_ptr.h"
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#include "webkit/dom_storage/dom_storage_context.h"
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namespace dom_storage {
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class DomStorageHost;
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}
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namespace WebKit {
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class WebStorageNamespace;
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}
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// Class that composes dom_storage classes together for use
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// in simple single process environments like test_shell and DRT.
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class BrowserDomStorageSystem
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: public dom_storage::DomStorageContext::EventObserver {
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public:
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static BrowserDomStorageSystem& instance() { return *g_instance_; }
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BrowserDomStorageSystem();
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virtual ~BrowserDomStorageSystem();
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// The Create<<>> calls are bound to WebKit api that the embedder
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// is responsible for implementing. These factories are called strictly
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// on the 'main' webkit thread. Ditto the methods on the returned
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// objects. SimplDomStorageSystem manufactures implementations of the
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// WebStorageNamespace and WebStorageArea interfaces that ultimately
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// plumb Get, Set, Remove, and Clear javascript calls to the dom_storage
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// classes. The caller (webkit/webcore) takes ownership of the returned
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// instances and will delete them when done.
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WebKit::WebStorageNamespace* CreateLocalStorageNamespace();
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WebKit::WebStorageNamespace* CreateSessionStorageNamespace();
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private:
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// Inner classes that implement the WebKit WebStorageNamespace and
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// WebStorageArea interfaces in terms of dom_storage classes.
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class NamespaceImpl;
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class AreaImpl;
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// DomStorageContext::EventObserver implementation which
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// calls into webkit/webcore to dispatch events.
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virtual void OnDomStorageItemSet(
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const dom_storage::DomStorageArea* area,
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const string16& key,
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const string16& new_value,
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const NullableString16& old_value,
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const GURL& page_url) OVERRIDE;
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virtual void OnDomStorageItemRemoved(
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const dom_storage::DomStorageArea* area,
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const string16& key,
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const string16& old_value,
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const GURL& page_url) OVERRIDE;
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virtual void OnDomStorageAreaCleared(
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const dom_storage::DomStorageArea* area,
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const GURL& page_url) OVERRIDE;
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void DispatchDomStorageEvent(
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const dom_storage::DomStorageArea* area,
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const GURL& page_url,
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const NullableString16& key,
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const NullableString16& new_value,
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const NullableString16& old_value);
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base::WeakPtrFactory<BrowserDomStorageSystem> weak_factory_;
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scoped_refptr<dom_storage::DomStorageContext> context_;
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scoped_ptr<dom_storage::DomStorageHost> host_;
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AreaImpl* area_being_processed_;
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int next_connection_id_;
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static BrowserDomStorageSystem* g_instance_;
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};
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#endif // CEF_LIBCEF_BROWSER_DOM_STORAGE_SYSTEM_H_
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