Home | History | Annotate | Download | only in importer 
      1 // Copyright (c) 2011 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_UTILITY_IMPORTER_IMPORTER_H_
      6 #define CHROME_UTILITY_IMPORTER_IMPORTER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/ref_counted.h"
     10 
     11 class ImporterBridge;
     12 
     13 namespace importer {
     14 struct SourceProfile;
     15 }
     16 
     17 // The base class of all importers.
     18 class Importer : public base::RefCountedThreadSafe<Importer> {
     19  public:
     20   // All importers should implement this method by adding their import logic.
     21   // And it will be run in file thread by ImporterHost. Since we do async
     22   // import, the importer should invoke ImporterHost::NotifyImportEnded() to
     23   // notify its host that import stuff have been finished.
     24   virtual void StartImport(const importer::SourceProfile& source_profile,
     25                            uint16 items,
     26                            ImporterBridge* bridge) = 0;
     27 
     28   // Cancels the import process.
     29   virtual void Cancel();
     30 
     31   bool cancelled() const { return cancelled_; }
     32 
     33  protected:
     34   friend class base::RefCountedThreadSafe<Importer>;
     35 
     36   Importer();
     37   virtual ~Importer();
     38 
     39   scoped_refptr<ImporterBridge> bridge_;
     40 
     41  private:
     42   // True if the caller cancels the import process.
     43   bool cancelled_;
     44 
     45   DISALLOW_COPY_AND_ASSIGN(Importer);
     46 };
     47 
     48 #endif  // CHROME_UTILITY_IMPORTER_IMPORTER_H_
     49