chrome/browser/component_updater/pnacl/pnacl_component_installer.h

   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_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
   6 #define CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
   7
   8 #include <list>
   9
  10 #include "base/callback.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/files/file_path.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/version.h"
  15 #include "chrome/browser/component_updater/component_updater_service.h"
  16 #include "chrome/browser/component_updater/pnacl/pnacl_profile_observer.h"
  17
  18 class CommandLine;
  19
  20 namespace base {
  21 class DictionaryValue;
  22 }
  23
  24 namespace pnacl {
  25 // Returns true if PNaCl actually needs an on-demand component update.
  26 // E.g., if PNaCl is not yet installed and the user is loading a PNaCl app,
  27 // or the current version is behind chrome's version, and is ABI incompatible
  28 // with chrome. If not necessary, returns false.
  29 // May conservatively return false before PNaCl is registered, but
  30 // should return the right answer after it is registered.
  31 bool NeedsOnDemandUpdate();
  32 }
  33
  34 namespace component_updater {
  35
  36 // Component installer responsible for Portable Native Client files.
  37 // Files can be installed to a shared location, or be installed to
  38 // a per-user location.
  39 class PnaclComponentInstaller : public ComponentInstaller {
  40  public:
  41   PnaclComponentInstaller();
  42
  43   virtual ~PnaclComponentInstaller();
  44
  45   virtual void OnUpdateError(int error) OVERRIDE;
  46
  47   virtual bool Install(const base::DictionaryValue& manifest,
  48                        const base::FilePath& unpack_path) OVERRIDE;
  49
  50   virtual bool GetInstalledFile(const std::string& file,
  51                                 base::FilePath* installed_file) OVERRIDE;
  52
  53   // Register a PNaCl component for the first time.
  54   void RegisterPnaclComponent(ComponentUpdateService* cus,
  55                               const CommandLine& command_line);
  56
  57   // Check the PNaCl version again and re-register with the component
  58   // updater service.
  59   void ReRegisterPnacl();
  60
  61   CrxComponent GetCrxComponent();
  62
  63   // Return true if PNaCl installs are separated by user.
  64   bool per_user() const { return per_user_; }
  65
  66   // If per_user, function to call when profile is changed.
  67   void OnProfileChange();
  68
  69   // Return true if PNaCl updates are disabled.
  70   bool updates_disabled() const { return updates_disabled_; }
  71
  72   // Determine the base directory for storing each version of PNaCl.
  73   base::FilePath GetPnaclBaseDirectory();
  74
  75   base::Version current_version() const { return current_version_; }
  76
  77   void set_current_version(const base::Version& current_version) {
  78     current_version_ = current_version;
  79   }
  80
  81   std::string current_fingerprint() const { return current_fingerprint_; }
  82
  83   void set_current_fingerprint(const std::string& current_fingerprint) {
  84     current_fingerprint_ = current_fingerprint;
  85   }
  86
  87   ComponentUpdateService* cus() const { return cus_; }
  88
  89  private:
  90   bool per_user_;
  91   bool updates_disabled_;
  92   scoped_ptr<PnaclProfileObserver> profile_observer_;
  93   base::FilePath current_profile_path_;
  94   base::Version current_version_;
  95   std::string current_fingerprint_;
  96   ComponentUpdateService* cus_;
  97   DISALLOW_COPY_AND_ASSIGN(PnaclComponentInstaller);
  98 };
  99
 100 }  // namespace component_updater
 101
 102 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_