components/enhanced_bookmarks/persistent_image_store.h

   1 // Copyright 2014 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 COMPONENTS_ENHANCED_BOOKMARKS_PERSISTENT_IMAGE_STORE_H_
   6 #define COMPONENTS_ENHANCED_BOOKMARKS_PERSISTENT_IMAGE_STORE_H_
   7
   8 #include "components/enhanced_bookmarks/image_store.h"
   9
  10 #include "base/files/file_path.h"
  11 #include "sql/connection.h"
  12 #include "sql/init_status.h"
  13 #include "sql/meta_table.h"
  14
  15 // The PersistentImageStore is an implementation of ImageStore that persists its
  16 // data on disk.
  17 class PersistentImageStore : public ImageStore {
  18  public:
  19   // Creates a PersistentImageStore in the directory at the given path.
  20   explicit PersistentImageStore(const base::FilePath& path);
  21   bool HasKey(const GURL& page_url) override;
  22   void Insert(const GURL& page_url,
  23               scoped_refptr<enhanced_bookmarks::ImageRecord> image) override;
  24   void Erase(const GURL& page_url) override;
  25   scoped_refptr<enhanced_bookmarks::ImageRecord> Get(
  26       const GURL& page_url) override;
  27   gfx::Size GetSize(const GURL& page_url) override;
  28   void GetAllPageUrls(std::set<GURL>* urls) override;
  29   void ClearAll() override;
  30   int64 GetStoreSizeInBytes() override;
  31
  32  protected:
  33   ~PersistentImageStore() override;
  34
  35  private:
  36   sql::InitStatus OpenDatabase();
  37
  38   const base::FilePath path_;
  39   sql::Connection db_;
  40   sql::MetaTable meta_table_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(PersistentImageStore);
  43 };
  44
  45 #endif  // COMPONENTS_ENHANCED_BOOKMARKS_PERSISTENT_IMAGE_STORE_H_