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      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_API_FEEDBACK_PRIVATE_FEEDBACK_SERVICE_H_
      6 #define CHROME_BROWSER_EXTENSIONS_API_FEEDBACK_PRIVATE_FEEDBACK_SERVICE_H_
      7 
      8 #include <vector>
      9 #include "base/basictypes.h"
     10 #include "base/callback.h"
     11 #include "base/memory/linked_ptr.h"
     12 #include "base/memory/weak_ptr.h"
     13 #include "chrome/browser/extensions/blob_reader.h"
     14 #include "chrome/browser/feedback/system_logs/scrubbed_system_logs_fetcher.h"
     15 #include "chrome/common/extensions/api/feedback_private.h"
     16 #include "components/feedback/feedback_data.h"
     17 
     18 class Profile;
     19 
     20 using extensions::api::feedback_private::SystemInformation;
     21 
     22 namespace extensions {
     23 
     24 typedef std::vector<linked_ptr<SystemInformation> > SystemInformationList;
     25 
     26 class FeedbackService {
     27  public:
     28   typedef base::Callback<void(bool)> SendFeedbackCallback;
     29   typedef base::Callback<void(const SystemInformationList& sys_info)>
     30       GetSystemInformationCallback;
     31 
     32   // Creates a platform-specific FeedbackService instance.
     33   static FeedbackService* CreateInstance();
     34 
     35   virtual ~FeedbackService();
     36 
     37   // Sends a feedback report.
     38   void SendFeedback(Profile* profile,
     39                     scoped_refptr<feedback::FeedbackData> feedback_data,
     40                     const SendFeedbackCallback& callback);
     41 
     42   // Start to gather system information.
     43   // The |callback| will be invoked once the query is completed.
     44   void GetSystemInformation(const GetSystemInformationCallback& callback);
     45 
     46   // Platform specific methods:
     47   // Gets the email address of the logged in user.
     48   virtual std::string GetUserEmail() = 0;
     49 
     50   // Gets the histograms in JSON.
     51   virtual void GetHistograms(std::string* histograms) = 0;
     52 
     53  protected:
     54   FeedbackService();
     55 
     56   // Used to get a weak ptr for a derived class instance.
     57   virtual base::WeakPtr<FeedbackService> GetWeakPtr() = 0;
     58 
     59   // Callbacks to receive blob data.
     60   void AttachedFileCallback(scoped_ptr<std::string> data,
     61                             int64 total_blob_length);
     62   void ScreenshotCallback(scoped_ptr<std::string> data,
     63                           int64 total_blob_length);
     64 
     65   // Checks if we have read all the blobs we need to; signals the feedback
     66   // data object once all the requisite data has been populated.
     67   void CompleteSendFeedback();
     68 
     69  private:
     70   void OnSystemLogsFetchComplete(
     71       scoped_ptr<system_logs::SystemLogsResponse> sys_info);
     72 
     73   GetSystemInformationCallback system_information_callback_;
     74   SendFeedbackCallback send_feedback_callback_;
     75 
     76   scoped_refptr<feedback::FeedbackData> feedback_data_;
     77 
     78   DISALLOW_COPY_AND_ASSIGN(FeedbackService);
     79 };
     80 
     81 }  // namespace extensions
     82 
     83 #endif  // CHROME_BROWSER_EXTENSIONS_API_FEEDBACK_PRIVATE_FEEDBACK_SERVICE_H_
     84