chrome/browser/extensions/active_install_data.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 CHROME_BROWSER_EXTENSIONS_ACTIVE_INSTALL_DATA_H_
   6 #define CHROME_BROWSER_EXTENSIONS_ACTIVE_INSTALL_DATA_H_
   7
   8 #include <string>
   9
  10 #include "base/macros.h"
  11 #include "base/scoped_observer.h"
  12 #include "chrome/browser/extensions/install_observer.h"
  13
  14 namespace extensions {
  15
  16 class InstallTracker;
  17
  18 // Details of an active extension install.
  19 struct ActiveInstallData {
  20  public:
  21   ActiveInstallData();
  22   explicit ActiveInstallData(const std::string& extension_id);
  23
  24   std::string extension_id;
  25   int percent_downloaded;
  26   bool is_ephemeral;
  27 };
  28
  29 // Registers and deregisters and an active extension install with the
  30 // InstallTracker.
  31 class ScopedActiveInstall : public InstallObserver {
  32  public:
  33   // This constructor registers an active install with the InstallTracker.
  34   ScopedActiveInstall(InstallTracker* tracker,
  35                       const ActiveInstallData& install_data);
  36
  37   // This constructor does not register an active install. The extension install
  38   // is still deregistered upon destruction.
  39   ScopedActiveInstall(InstallTracker* tracker, const std::string& extension_id);
  40
  41   ~ScopedActiveInstall() override;
  42
  43   // Ensures that the active install is not deregistered upon destruction. This
  44   // may be necessary if the extension install outlives the lifetime of this
  45   // instance.
  46   void CancelDeregister();
  47
  48  private:
  49   void Init();
  50
  51   // InstallObserver implementation.
  52   void OnShutdown() override;
  53
  54   InstallTracker* tracker_;
  55   ScopedObserver<InstallTracker, InstallObserver> tracker_observer_;
  56   std::string extension_id_;
  57
  58   DISALLOW_COPY_AND_ASSIGN(ScopedActiveInstall);
  59 };
  60
  61 }  // namespace extensions
  62
  63 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVE_INSTALL_DATA_H_