chrome/browser/extensions/signin/gaia_auth_extension_loader.h

   1 // Copyright 2013 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 #ifndef CHROME_BROWSER_EXTENSIONS_SIGNIN_GAIA_AUTH_EXTENSION_LOADER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_SIGNIN_GAIA_AUTH_EXTENSION_LOADER_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/macros.h"
  12 #include "extensions/browser/browser_context_keyed_api_factory.h"
  13
  14 namespace content {
  15 class BrowserContext;
  16 }
  17
  18 namespace extensions {
  19
  20 const char kGaiaAuthExtensionId[] = "mfffpogegjflfpflabcdkioaeobkgjik";
  21 const char kGaiaAuthExtensionOrigin[] =
  22       "chrome-extension://mfffpogegjflfpflabcdkioaeobkgjik";
  23
  24 // Manages and registers the gaia auth extension with the extension system.
  25 class GaiaAuthExtensionLoader : public BrowserContextKeyedAPI {
  26  public:
  27   explicit GaiaAuthExtensionLoader(content::BrowserContext* context);
  28   ~GaiaAuthExtensionLoader() override;
  29
  30   // Load the gaia auth extension if the extension is not loaded yet.
  31   void LoadIfNeeded();
  32   // Unload the gaia auth extension if no pending reference.
  33   void UnloadIfNeeded();
  34
  35   // Add a string data for gaia auth extension. Returns an ID that
  36   // could be used to get the data. All strings are cleared when gaia auth
  37   // is unloaded.
  38   int AddData(const std::string& data);
  39
  40   // Get data for the given ID. Returns true if the data is found and
  41   // its value is copied to |data|. Otherwise, returns false.
  42   bool GetData(int data_id, std::string* data);
  43
  44   static GaiaAuthExtensionLoader* Get(content::BrowserContext* context);
  45
  46   // BrowserContextKeyedAPI implementation.
  47   static BrowserContextKeyedAPIFactory<GaiaAuthExtensionLoader>*
  48       GetFactoryInstance();
  49
  50  private:
  51   friend class BrowserContextKeyedAPIFactory<GaiaAuthExtensionLoader>;
  52
  53   // KeyedService overrides:
  54   void Shutdown() override;
  55
  56   // BrowserContextKeyedAPI implementation.
  57   static const char* service_name() {
  58     return "GaiaAuthExtensionLoader";
  59   }
  60   static const bool kServiceRedirectedInIncognito = true;
  61
  62   content::BrowserContext* browser_context_;
  63   int load_count_;
  64
  65   int last_data_id_;
  66   std::map<int, std::string> data_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(GaiaAuthExtensionLoader);
  69 };
  70
  71 } // namespace extensions
  72
  73 #endif  // CHROME_BROWSER_EXTENSIONS_SIGNIN_GAIA_AUTH_EXTENSION_LOADER_H_