| // 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_SIGNIN_SIGNIN_NAMES_IO_THREAD_H_ |
| #define CHROME_BROWSER_SIGNIN_SIGNIN_NAMES_IO_THREAD_H_ |
| |
| #include <set> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/strings/string16.h" |
| #include "chrome/browser/signin/signin_manager_factory.h" |
| #include "components/signin/core/browser/signin_manager_base.h" |
| |
| // This class provides access to a list of email addresses for all profiles |
| // connected to a Google account, from the IO thread. The main purpose of |
| // this is to be a member of the ProfileIOData structure to allow access to |
| // the list of email addresses, and is used by the one-click sign in code to |
| // know which Google accounts are already in use. |
| // |
| // Instance of this class are created and initialized on the UI |
| // thread as part of the creation of ProfileIOData, and destroyed along with |
| // ProfileIOData. |
| class SigninNamesOnIOThread : public SigninManagerBase::Observer, |
| public SigninManagerFactory::Observer { |
| public: |
| typedef std::set<base::string16> EmailSet; |
| |
| // Objects should only be created on UI thread. |
| SigninNamesOnIOThread(); |
| virtual ~SigninNamesOnIOThread(); |
| |
| // Gets the set of email addresses of connected profiles. This method should |
| // only be called on the IO thread. |
| const EmailSet& GetEmails() const; |
| |
| // Releases all resource held by object. Once released, GetEmails() no |
| // longer works. |
| void ReleaseResourcesOnUIThread(); |
| |
| private: |
| // SigninManagerBase::Observer: |
| virtual void GoogleSigninSucceeded(const std::string& username, |
| const std::string& password) OVERRIDE; |
| virtual void GoogleSignedOut(const std::string& username) OVERRIDE; |
| |
| // SigninManagerFactory::Observer: |
| virtual void SigninManagerCreated(SigninManagerBase* manager) OVERRIDE; |
| virtual void SigninManagerShutdown(SigninManagerBase* manager) OVERRIDE; |
| |
| // Checks whether the current thread is the IO thread. |
| void CheckOnIOThread() const; |
| |
| // Checks whether the current thread is the UI thread. |
| void CheckOnUIThread() const; |
| |
| // Posts a task to the I/O thread to add or remove the email address from |
| // the set. |
| void PostTaskToIOThread(bool add, const base::string16& email); |
| |
| // Updates the email set on the I/O thread. Protected for testing. |
| void UpdateOnIOThread(bool add, const base::string16& email); |
| |
| EmailSet emails_; |
| |
| // The set of SigninManagerBase instances that this instance is currently |
| // observing. Can only be accessed on the UI thread. |
| std::set<SigninManagerBase*> observed_managers_; |
| bool resources_released_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SigninNamesOnIOThread); |
| }; |
| |
| #endif // CHROME_BROWSER_SIGNIN_SIGNIN_NAMES_IO_THREAD_H_ |