| // 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_IDENTITY_IDENTITY_MINT_QUEUE_H_ |
| #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_MINT_QUEUE_H_ |
| |
| #include <list> |
| #include <map> |
| #include <set> |
| #include <string> |
| |
| namespace extensions { |
| |
| // getAuthToken requests are serialized to avoid excessive traffic to |
| // GAIA and to consolidate UI pop-ups. IdentityMintRequestQueue |
| // maitains a set of queues, one for each RequestKey. |
| // |
| // The queue calls StartMintToken on each Request when it reaches the |
| // head of the line. |
| // |
| // The queue does not own Requests. Request pointers must be valid |
| // until they are removed from the queue with RequestComplete. |
| class IdentityMintRequestQueue { |
| public: |
| enum MintType { |
| MINT_TYPE_NONINTERACTIVE, |
| MINT_TYPE_INTERACTIVE |
| }; |
| |
| IdentityMintRequestQueue(); |
| virtual ~IdentityMintRequestQueue(); |
| |
| class Request { |
| public: |
| virtual ~Request() {} |
| virtual void StartMintToken(IdentityMintRequestQueue::MintType type) = 0; |
| }; |
| |
| struct RequestKey { |
| RequestKey(IdentityMintRequestQueue::MintType type, |
| const std::string& extension_id, |
| const std::set<std::string> scopes); |
| ~RequestKey(); |
| bool operator<(const RequestKey& rhs) const; |
| IdentityMintRequestQueue::MintType type; |
| std::string extension_id; |
| std::set<std::string> scopes; |
| }; |
| |
| // Adds a request to the queue specified by the id and scopes. |
| void RequestStart(IdentityMintRequestQueue::MintType type, |
| const std::string& extension_id, |
| const std::set<std::string> scopes, |
| IdentityMintRequestQueue::Request* request); |
| // Removes a request from the queue specified by the id and scopes. |
| void RequestComplete(IdentityMintRequestQueue::MintType type, |
| const std::string& extension_id, |
| const std::set<std::string> scopes, |
| IdentityMintRequestQueue::Request* request); |
| bool empty(IdentityMintRequestQueue::MintType type, |
| const std::string& extension_id, |
| const std::set<std::string> scopes) const; |
| |
| private: |
| typedef std::list<IdentityMintRequestQueue::Request*> RequestList; |
| std::map<RequestKey, RequestList> request_queue_; |
| }; |
| |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_MINT_QUEUE_H_ |