chrome.experimental.downloads

chrome/browser/history/download_database.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_HISTORY_DOWNLOAD_DATABASE_H_
 #define CHROME_BROWSER_HISTORY_DOWNLOAD_DATABASE_H_
 #pragma once
 
+#include "base/callback.h"
 #include "chrome/browser/history/history_types.h"
 
 struct DownloadHistoryInfo;
 class FilePath;
 
 namespace sql {
 class Connection;
 }
 
 namespace history {
 
 // Maintains a table of downloads.
 class DownloadDatabase {
  public:
   // Must call InitDownloadTable before using any other functions.
   DownloadDatabase();
   virtual ~DownloadDatabase();
 
   // Get all the downloads from the database.
-  void QueryDownloads(std::vector<DownloadHistoryInfo>* results);
+  void QueryDownloads(DownloadQueryParameters* params);
 
   // Update the state of one download. Returns true if successful.
-  bool UpdateDownload(int64 received_bytes, int32 state, DownloadID db_handle);
+  bool UpdateDownload(int64 received_bytes, int32 state, DownloadID id);
 
   // Update the path of one download. Returns true if successful.
-  bool UpdateDownloadPath(const FilePath& path, DownloadID db_handle);
+  bool UpdateDownloadPath(const FilePath& path, DownloadID id);
 
   // Fixes state of the download entries. Sometimes entries with IN_PROGRESS
   // state are not updated during browser shutdown (particularly when crashing).
   // On the next start such entries are considered canceled. This functions
   // fixes such entries.
   bool CleanUpInProgressEntries();
 
   // Create a new database entry for one download and return its primary db id.
-  int64 CreateDownload(const DownloadHistoryInfo& info);
+  bool CreateDownload(const DownloadHistoryInfo& info);
 
   // Remove a download from the database.
-  void RemoveDownload(DownloadID db_handle);
+  void RemoveDownload(DownloadID id);
 
   // Remove all completed downloads that started after |remove_begin|
   // (inclusive) and before |remove_end|. You may use null Time values
   // to do an unbounded delete in either direction. This function ignores
   // all downloads that are in progress or are waiting to be cancelled.
   void RemoveDownloadsBetween(base::Time remove_begin, base::Time remove_end);
 
  protected:
   // Returns the database for the functions in this interface.
   virtual sql::Connection& GetDB() = 0;
 
   // Creates the downloads table if needed.
   bool InitDownloadTable();
 
   // Used to quickly clear the downloads. First you would drop it, then you
   // would re-initialize it.
   bool DropDownloadTable();
 
  private:
+  bool MaybeUpgradeTable(DownloadQueryParameters::GetNextIdThunk get_next_id);
+
   DISALLOW_COPY_AND_ASSIGN(DownloadDatabase);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_DOWNLOAD_DATABASE_H_