Index: chrome/browser/extensions/api/dial/dial_api.h |
diff --git a/chrome/browser/extensions/api/dial/dial_api.h b/chrome/browser/extensions/api/dial/dial_api.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ee3ba7f861ad25909e253d9594992be7060dc591 |
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+++ b/chrome/browser/extensions/api/dial/dial_api.h |
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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_DIAL_DIAL_API_H_ |
+#define CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_API_H_ |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "chrome/browser/extensions/api/api_function.h" |
+#include "chrome/browser/extensions/api/dial/dial_device_data.h" |
+#include "chrome/browser/extensions/api/dial/dial_registry.h" |
+#include "chrome/browser/extensions/event_router.h" |
+#include "chrome/browser/profiles/refcounted_profile_keyed_service.h" |
+ |
+namespace extensions { |
+ |
+class DialRegistry; |
+ |
+// Dial API which is a ref-counted ProfileKeyedService that manages the DIAL |
+// registry. It takes care of creating the registry on the IO thread and |
+// is an observer of the registry. It makes sure devices events are sent out |
+// to extension listeners on the right thread. |
+class DialAPI : public RefcountedProfileKeyedService, |
+ public EventRouter::Observer, |
+ public DialRegistry::Observer { |
+ public: |
+ explicit DialAPI(Profile* profile); |
+ |
+ // The DialRegistry for the API. This must always be used only from the IO |
+ // thread. |
+ DialRegistry* dial_registry(); |
+ |
+ // Called by the DialRegistry on the IO thread so that the DialAPI dispatches |
+ // the event to listeners on the UI thread. |
+ void SendEventOnUIThread(const DialRegistry::DeviceList& devices); |
+ |
+ private: |
+ virtual ~DialAPI(); |
+ |
+ // RefcountedProfileKeyedService: |
+ virtual void ShutdownOnUIThread() OVERRIDE; |
+ |
+ // EventRouter::Observer: |
+ virtual void OnListenerAdded(const EventListenerInfo& details) OVERRIDE; |
+ virtual void OnListenerRemoved(const EventListenerInfo& details) OVERRIDE; |
+ |
+ // DialRegistry::Observer: |
+ virtual void OnDialDeviceEvent( |
+ const DialRegistry::DeviceList& devices) OVERRIDE; |
+ |
+ // Methods to notify the DialRegistry on the correct thread of new/removed |
+ // listeners. |
+ void NotifyListenerAddedOnIOThread(); |
+ void NotifyListenerRemovedOnIOThread(); |
+ |
+ Profile* profile_; |
+ |
+ // Created lazily on first access on the IO thread. |
+ scoped_ptr<DialRegistry> dial_registry_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(DialAPI); |
+}; |
+ |
+namespace api { |
+ |
+// DiscoverNow function. This function needs a round-trip from the IO thread |
+// because it needs to grab a pointer to the DIAL API in order to get a |
+// reference to the DialRegistry while on the IO thread. Then, the result |
+// must be returned on the UI thread. |
+class DialDiscoverNowFunction : public AsyncApiFunction { |
+ public: |
+ DialDiscoverNowFunction(); |
+ |
+ protected: |
+ virtual ~DialDiscoverNowFunction() {} |
+ |
+ // AsyncApiFunction: |
+ virtual bool Prepare() OVERRIDE; |
+ virtual void Work() OVERRIDE; |
+ virtual bool Respond() OVERRIDE; |
+ |
+ private: |
+ DECLARE_EXTENSION_FUNCTION_NAME("dial.discoverNow") |
+ |
+ // Pointer to the DIAL API for this profile. We get this on the UI thread. |
+ DialAPI* dial_; |
+ |
+ // Result of the discoverNow call to the DIAL registry. This result is |
+ // retrieved on the IO thread but the function result is returned on the UI |
+ // thread. |
+ bool result_; |
+}; |
+ |
+} // namespace api |
+ |
+} // namespace extensions |
+ |
+#endif // CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_API_H_ |