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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Defines the Chrome Extensions Proxy Settings API relevant classes to realize
      6 // the API as specified in chrome/common/extensions/api/extension_api.json.
      7 
      8 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_PROXY_API_H_
      9 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PROXY_API_H_
     10 
     11 #include <string>
     12 
     13 #include "base/memory/singleton.h"
     14 #include "chrome/browser/extensions/extension_preference_api.h"
     15 #include "chrome/browser/prefs/proxy_prefs.h"
     16 #include "chrome/browser/profiles/profile.h"
     17 
     18 class Value;
     19 class ExtensionEventRouterForwarder;
     20 
     21 // Class to convert between the representation of proxy settings used
     22 // in the Proxy Settings API and the representation used in the PrefStores.
     23 // This plugs into the ExtensionPreferenceAPI to get and set proxy settings.
     24 class ProxyPrefTransformer : public PrefTransformerInterface {
     25  public:
     26   ProxyPrefTransformer();
     27   virtual ~ProxyPrefTransformer();
     28 
     29   // Implementation of PrefTransformerInterface.
     30   virtual Value* ExtensionToBrowserPref(const Value* extension_pref,
     31                                         std::string* error) OVERRIDE;
     32   virtual Value* BrowserToExtensionPref(const Value* browser_pref) OVERRIDE;
     33 
     34  private:
     35   DISALLOW_COPY_AND_ASSIGN(ProxyPrefTransformer);
     36 };
     37 
     38 // This class observes proxy error events and routes them to the appropriate
     39 // extensions listening to those events. All methods must be called on the IO
     40 // thread unless otherwise specified.
     41 class ExtensionProxyEventRouter {
     42  public:
     43   static ExtensionProxyEventRouter* GetInstance();
     44 
     45   void OnProxyError(ExtensionEventRouterForwarder* event_router,
     46                     ProfileId profile_id,
     47                     int error_code);
     48 
     49  private:
     50   friend struct DefaultSingletonTraits<ExtensionProxyEventRouter>;
     51 
     52   ExtensionProxyEventRouter();
     53   ~ExtensionProxyEventRouter();
     54 
     55   DISALLOW_COPY_AND_ASSIGN(ExtensionProxyEventRouter);
     56 };
     57 
     58 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PROXY_API_H_
     59