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      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_BROWSER_IMPORTER_IMPORTER_H_
      6 #define CHROME_BROWSER_IMPORTER_IMPORTER_H_
      7 #pragma once
      8 
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/memory/ref_counted.h"
     13 
     14 class ImporterBridge;
     15 
     16 namespace importer {
     17 struct SourceProfile;
     18 }
     19 
     20 // The base class of all importers.
     21 class Importer : public base::RefCountedThreadSafe<Importer> {
     22  public:
     23   // All importers should implement this method by adding their import logic.
     24   // And it will be run in file thread by ImporterHost. Since we do async
     25   // import, the importer should invoke ImporterHost::NotifyImportEnded() to
     26   // notify its host that import stuff have been finished.
     27   virtual void StartImport(const importer::SourceProfile& source_profile,
     28                            uint16 items,
     29                            ImporterBridge* bridge) = 0;
     30 
     31   // Cancels the import process.
     32   virtual void Cancel();
     33 
     34   void set_import_to_bookmark_bar(bool import_to_bookmark_bar) {
     35     import_to_bookmark_bar_ = import_to_bookmark_bar;
     36   }
     37 
     38   void set_bookmark_bar_disabled(bool bookmark_bar_disabled) {
     39     bookmark_bar_disabled_ = bookmark_bar_disabled;
     40   }
     41 
     42   bool bookmark_bar_disabled() { return bookmark_bar_disabled_; }
     43   bool cancelled() const { return cancelled_; }
     44 
     45  protected:
     46   friend class base::RefCountedThreadSafe<Importer>;
     47 
     48   Importer();
     49   virtual ~Importer();
     50 
     51   // Given raw image data, decodes the icon, re-sampling to the correct size as
     52   // necessary, and re-encodes as PNG data in the given output vector. Returns
     53   // true on success.
     54   static bool ReencodeFavicon(const unsigned char* src_data,
     55                               size_t src_len,
     56                               std::vector<unsigned char>* png_data);
     57 
     58   bool import_to_bookmark_bar() const { return import_to_bookmark_bar_; }
     59 
     60   scoped_refptr<ImporterBridge> bridge_;
     61 
     62  private:
     63   // True if the importer is created in the first run UI.
     64   bool import_to_bookmark_bar_;
     65 
     66   // Whether bookmark bar is disabled (not shown) for importer. This is set
     67   // true during first run to prevent out of process bookmark importer from
     68   // updating bookmark bar settings.
     69   bool bookmark_bar_disabled_;
     70 
     71   // True if the caller cancels the import process.
     72   bool cancelled_;
     73 
     74   DISALLOW_COPY_AND_ASSIGN(Importer);
     75 };
     76 
     77 #endif  // CHROME_BROWSER_IMPORTER_IMPORTER_H_
     78