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 "base/memory/weak_ptr.h"
  13 #include "extensions/browser/browser_context_keyed_api_factory.h"
  14
  15 namespace content {
  16 class BrowserContext;
  17 }
  18
  19 namespace extensions {
  20
  21 const char kGaiaAuthExtensionId[] = "mfffpogegjflfpflabcdkioaeobkgjik";
  22 const char kGaiaAuthExtensionOrigin[] =
  23       "chrome-extension://mfffpogegjflfpflabcdkioaeobkgjik";
  24
  25 // Manages and registers the gaia auth extension with the extension system.
  26 class GaiaAuthExtensionLoader : public BrowserContextKeyedAPI {
  27  public:
  28   explicit GaiaAuthExtensionLoader(content::BrowserContext* context);
  29   ~GaiaAuthExtensionLoader() override;
  30
  31   // Load the gaia auth extension if the extension is not loaded yet.
  32   void LoadIfNeeded();
  33   // Unload the gaia auth extension if no pending reference.
  34   void UnloadIfNeeded();
  35   void UnloadIfNeededAsync();
  36
  37   // Add a string data for gaia auth extension. Returns an ID that
  38   // could be used to get the data. All strings are cleared when gaia auth
  39   // is unloaded.
  40   int AddData(const std::string& data);
  41
  42   // Get data for the given ID. Returns true if the data is found and
  43   // its value is copied to |data|. Otherwise, returns false.
  44   bool GetData(int data_id, std::string* data);
  45
  46   static GaiaAuthExtensionLoader* Get(content::BrowserContext* context);
  47
  48   // BrowserContextKeyedAPI implementation.
  49   static BrowserContextKeyedAPIFactory<GaiaAuthExtensionLoader>*
  50       GetFactoryInstance();
  51
  52  private:
  53   friend class BrowserContextKeyedAPIFactory<GaiaAuthExtensionLoader>;
  54
  55   // KeyedService overrides:
  56   void Shutdown() override;
  57
  58   // BrowserContextKeyedAPI implementation.
  59   static const char* service_name() {
  60     return "GaiaAuthExtensionLoader";
  61   }
  62   static const bool kServiceRedirectedInIncognito = true;
  63
  64   content::BrowserContext* browser_context_;
  65   int load_count_;
  66
  67   int last_data_id_;
  68   std::map<int, std::string> data_;
  69
  70   base::WeakPtrFactory<GaiaAuthExtensionLoader> weak_ptr_factory_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(GaiaAuthExtensionLoader);
  73 };
  74
  75 } // namespace extensions
  76
  77 #endif  // CHROME_BROWSER_EXTENSIONS_SIGNIN_GAIA_AUTH_EXTENSION_LOADER_H_