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// 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 CHROME_BROWSER_EXTENSIONS_API_DISCOVERY_SUGGESTED_LINKS_REGISTRY_H_
#define CHROME_BROWSER_EXTENSIONS_API_DISCOVERY_SUGGESTED_LINKS_REGISTRY_H_
#include <map>
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/extensions/api/discovery/suggested_link.h"
#include "components/browser_context_keyed_service/browser_context_keyed_service.h"
namespace extensions {
// This class keeps track of links suggested by an extension using the discovery
// API.
class SuggestedLinksRegistry : public BrowserContextKeyedService {
public:
// A list of ExtensionSuggestedLink's.
typedef std::vector<linked_ptr<extensions::SuggestedLink> > SuggestedLinkList;
SuggestedLinksRegistry();
// Adds a suggested link from |extension_id|. Takes ownership of |item| in all
// cases.
void Add(const std::string& extension_id,
scoped_ptr<extensions::SuggestedLink> item);
// Returns all the extension ids that have at least one suggestion.
scoped_ptr<std::vector<std::string> > GetExtensionIds() const;
// Returns all the links suggested by |extension_id|.
const SuggestedLinkList* GetAll(const std::string& extension_id) const;
// Remove a specific link suggested by |extension_id|.
void Remove(const std::string& extension_id, const std::string& link_url);
// Clears all suggested links for |extension_id|.
void ClearAll(const std::string& extension_id);
private:
// Maps extension id to a list of notifications for that extension.
typedef std::map<std::string, SuggestedLinkList> SuggestedLinksMap;
virtual ~SuggestedLinksRegistry();
// Gets suggested links for a given extension id.
SuggestedLinkList& GetAllInternal(const std::string& extension_id);
SuggestedLinksMap suggested_links_;
// An empty list of suggestions that can be returned for non-existing
// extensions.
SuggestedLinkList empty_list_;
DISALLOW_COPY_AND_ASSIGN(SuggestedLinksRegistry);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_DISCOVERY_SUGGESTED_LINKS_REGISTRY_H_
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