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 cancelled()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