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      1 // Copyright (c) 2012 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_IMPORTER_IMPORTER_LIST_H_
      6 #define CHROME_BROWSER_IMPORTER_IMPORTER_LIST_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/callback_forward.h"
     13 #include "base/memory/scoped_vector.h"
     14 #include "base/memory/weak_ptr.h"
     15 #include "base/strings/string16.h"
     16 
     17 namespace importer {
     18 struct SourceProfile;
     19 }
     20 
     21 // ImporterList detects installed browsers and profiles via
     22 // DetectSourceProfilesWorker(). ImporterList lives on the UI thread.
     23 class ImporterList {
     24  public:
     25   ImporterList();
     26   ~ImporterList();
     27 
     28   // Detects the installed browsers and their associated profiles, then stores
     29   // their information in a list to be accessed via count() and
     30   // GetSourceProfileAt(). The detection runs asynchronously.
     31   //
     32   // |locale|: As in DetectSourceProfilesWorker().
     33   // |include_interactive_profiles|: True to include source profiles that
     34   // require user interaction to read.
     35   // |profiles_loaded_callback|: Assuming this ImporterList instance is still
     36   // alive, run the callback when the source profile detection finishes.
     37   void DetectSourceProfiles(const std::string& locale,
     38                             bool include_interactive_profiles,
     39                             const base::Closure& profiles_loaded_callback);
     40 
     41   // Returns the number of different source profiles you can import from.
     42   size_t count() const { return source_profiles_.size(); }
     43 
     44   // Returns the SourceProfile at |index|. The profiles are ordered such that
     45   // the profile at index 0 is the likely default browser. The SourceProfile
     46   // should be passed to ImporterHost::StartImportSettings().
     47   const importer::SourceProfile& GetSourceProfileAt(size_t index) const;
     48 
     49  private:
     50   // Called when the source profiles are loaded. Takes ownership of the
     51   // loaded profiles in |profiles| and calls |profiles_loaded_callback|.
     52   void SourceProfilesLoaded(
     53       const base::Closure& profiles_loaded_callback,
     54       const std::vector<importer::SourceProfile*>& profiles);
     55 
     56   // The list of profiles with the default one first.
     57   ScopedVector<importer::SourceProfile> source_profiles_;
     58 
     59   base::WeakPtrFactory<ImporterList> weak_ptr_factory_;
     60 
     61   DISALLOW_COPY_AND_ASSIGN(ImporterList);
     62 };
     63 
     64 #endif  // CHROME_BROWSER_IMPORTER_IMPORTER_LIST_H_
     65