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      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 #include "chrome/browser/component_updater/pnacl/pnacl_updater_observer.h"
     18 
     19 class CommandLine;
     20 
     21 namespace base {
     22 class DictionaryValue;
     23 }
     24 
     25 // Component installer responsible for Portable Native Client files.
     26 // Files can be installed to a shared location, or be installed to
     27 // a per-user location.
     28 class PnaclComponentInstaller : public ComponentInstaller {
     29  public:
     30   PnaclComponentInstaller();
     31 
     32   virtual ~PnaclComponentInstaller();
     33 
     34   virtual void OnUpdateError(int error) OVERRIDE;
     35 
     36   virtual bool Install(const base::DictionaryValue& manifest,
     37                        const base::FilePath& unpack_path) OVERRIDE;
     38 
     39   virtual bool GetInstalledFile(const std::string& file,
     40                                 base::FilePath* installed_file) OVERRIDE;
     41 
     42   // Register a PNaCl component for the first time.
     43   void RegisterPnaclComponent(ComponentUpdateService* cus,
     44                               const CommandLine& command_line);
     45 
     46   // Check the PNaCl version again and re-register with the component
     47   // updater service.
     48   void ReRegisterPnacl();
     49 
     50   CrxComponent GetCrxComponent();
     51 
     52   // Return true if PNaCl installs are separated by user.
     53   bool per_user() const { return per_user_; }
     54 
     55   // If per_user, function to call when profile is changed.
     56   void OnProfileChange();
     57 
     58   // Return true if PNaCl updates are disabled.
     59   bool updates_disabled() const { return updates_disabled_; }
     60 
     61   // Determine the base directory for storing each version of PNaCl.
     62   base::FilePath GetPnaclBaseDirectory();
     63 
     64   base::Version current_version() const { return current_version_; }
     65 
     66   void set_current_version(const base::Version& v) { current_version_ = v; }
     67 
     68   ComponentUpdateService* cus() const { return cus_; }
     69 
     70   typedef base::Callback<void(bool)> InstallCallback;
     71 
     72   // Ask the component updater service to do a first-install for PNaCl.
     73   // The |installed| callback will be run with |true| on success,
     74   // or run with |false| on an error. The callback is called on the UI thread.
     75   void RequestFirstInstall(const InstallCallback& installed);
     76 
     77  private:
     78   friend class PnaclUpdaterObserver;
     79 
     80   // Called when a RequestFirstInstall completed successfully.
     81   void NotifyInstallSuccess();
     82 
     83   // Called when a RequestFirstInstall will not happen, or an error occurred.
     84   void NotifyInstallError();
     85 
     86   bool per_user_;
     87   bool updates_disabled_;
     88   scoped_ptr<PnaclProfileObserver> profile_observer_;
     89   base::FilePath current_profile_path_;
     90   base::Version current_version_;
     91   ComponentUpdateService* cus_;
     92   // The one callback to call when there is a RequestFirstInstall.
     93   InstallCallback install_callback_;
     94   // Component updater service observer, to determine when an on-demand
     95   // install request failed.
     96   scoped_ptr<PnaclUpdaterObserver> updater_observer_;
     97   DISALLOW_COPY_AND_ASSIGN(PnaclComponentInstaller);
     98 };
     99 
    100 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
    101