| // Copyright 2013 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_MDNS_MDNS_API_H_ |
| #define CHROME_BROWSER_EXTENSIONS_API_MDNS_MDNS_API_H_ |
| |
| #include <set> |
| #include <string> |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "base/threading/thread_checker.h" |
| #include "chrome/browser/extensions/api/mdns/dns_sd_registry.h" |
| #include "chrome/browser/extensions/api/profile_keyed_api_factory.h" |
| #include "chrome/browser/extensions/event_router.h" |
| |
| namespace extensions { |
| |
| class DnsSdRegistry; |
| |
| // MDnsAPI is instantiated with the profile and will listen for extensions that |
| // register listeners for the chrome.mdns extension API. It will use a registry |
| // class to start the mDNS listener process (if necessary) and observe new |
| // service events to dispatch them to registered extensions. |
| class MDnsAPI : public ProfileKeyedAPI, |
| public EventRouter::Observer, |
| public DnsSdRegistry::DnsSdObserver { |
| public: |
| explicit MDnsAPI(Profile* profile); |
| virtual ~MDnsAPI(); |
| |
| static MDnsAPI* Get(Profile* profile); |
| |
| // ProfileKeyedAPI implementation. |
| static ProfileKeyedAPIFactory<MDnsAPI>* GetFactoryInstance(); |
| |
| // Used to mock out the DnsSdRegistry for testing. |
| void SetDnsSdRegistryForTesting(scoped_ptr<DnsSdRegistry> registry); |
| |
| protected: |
| // Retrieve an instance of the registry. Lazily created when needed. |
| virtual DnsSdRegistry* dns_sd_registry(); |
| |
| private: |
| friend class ProfileKeyedAPIFactory<MDnsAPI>; |
| |
| // EventRouter::Observer: |
| virtual void OnListenerAdded(const EventListenerInfo& details) OVERRIDE; |
| virtual void OnListenerRemoved(const EventListenerInfo& details) OVERRIDE; |
| |
| // DnsSdRegistry::Observer |
| virtual void OnDnsSdEvent( |
| const std::string& service_type, |
| const DnsSdRegistry::DnsSdServiceList& services) OVERRIDE; |
| |
| // ProfileKeyedAPI implementation. |
| static const char* service_name() { |
| return "MDnsAPI"; |
| } |
| |
| static const bool kServiceIsCreatedWithBrowserContext = true; |
| static const bool kServiceIsNULLWhileTesting = true; |
| |
| // Update the current list of service types and update the registry. |
| void UpdateMDnsListeners(const EventListenerInfo& details); |
| |
| // Ensure methods are only called on UI thread. |
| base::ThreadChecker thread_checker_; |
| Profile* const profile_; |
| // Lazily created on first access and destroyed with this API class. |
| scoped_ptr<DnsSdRegistry> dns_sd_registry_; |
| // Current set of service types registered with the registry. |
| std::set<std::string> service_types_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MDnsAPI); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_API_MDNS_MDNS_API_H_ |