chrome/browser/extensions/extension_assets_manager.h

   1 // Copyright (c) 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_ASSETS_MANAGER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ASSETS_MANAGER_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/files/file_path.h"
  12
  13 class Profile;
  14
  15 namespace extensions {
  16
  17 class Extension;
  18
  19 // Assets manager for installed extensions. Some extensions can be installed in
  20 // a shared place for multiple profiles (users). This class manages install and
  21 // uninstall. At the time being shared location is used for default apps on
  22 // Chrome OS only. This class must be used only from the extension file task
  23 // runner thread.
  24 class ExtensionAssetsManager {
  25  public:
  26   // Callback that is invoked when the extension assets are installed.
  27   // |file_path| is destination directory on success or empty in case of error.
  28   typedef base::Callback<void(const base::FilePath& file_path)>
  29       InstallExtensionCallback;
  30
  31   static ExtensionAssetsManager* GetInstance();
  32
  33   // Copy extension assets to final location. This location could be under
  34   // |local_install_dir| or some common location shared for multiple users.
  35   virtual void InstallExtension(const Extension* extension,
  36                                 const base::FilePath& unpacked_extension_root,
  37                                 const base::FilePath& local_install_dir,
  38                                 Profile* profile,
  39                                 InstallExtensionCallback callback) = 0;
  40
  41   // Remove extension assets if it is not used by anyone else.
  42   virtual void UninstallExtension(const std::string& id,
  43                                   Profile* profile,
  44                                   const base::FilePath& local_install_dir,
  45                                   const base::FilePath& extension_root) = 0;
  46
  47  protected:
  48   virtual ~ExtensionAssetsManager() {}
  49 };
  50
  51 }  // namespace extensions
  52
  53 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ASSETS_MANAGER_H_