pnacl_component_installer.h revision 116680a4aac90f2aa7413d9095a592090648e557
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#include <string> 10 11#include "base/callback.h" 12#include "base/compiler_specific.h" 13#include "base/files/file_path.h" 14#include "base/memory/scoped_ptr.h" 15#include "base/version.h" 16#include "chrome/browser/component_updater/component_updater_service.h" 17 18namespace base { 19class DictionaryValue; 20} 21 22namespace pnacl { 23// Returns true if PNaCl actually needs an on-demand component update. 24// E.g., if PNaCl is not yet installed and the user is loading a PNaCl app, 25// or the current version is behind chrome's version, and is ABI incompatible 26// with chrome. If not necessary, returns false. 27// May conservatively return false before PNaCl is registered, but 28// should return the right answer after it is registered. 29bool NeedsOnDemandUpdate(); 30} 31 32namespace component_updater { 33 34// Component installer responsible for Portable Native Client files. 35// Files can be installed to a shared location, or be installed to 36// a per-user location. 37class PnaclComponentInstaller : public ComponentInstaller { 38 public: 39 PnaclComponentInstaller(); 40 41 virtual ~PnaclComponentInstaller(); 42 43 virtual void OnUpdateError(int error) OVERRIDE; 44 45 virtual bool Install(const base::DictionaryValue& manifest, 46 const base::FilePath& unpack_path) OVERRIDE; 47 48 virtual bool GetInstalledFile(const std::string& file, 49 base::FilePath* installed_file) OVERRIDE; 50 51 // Register a PNaCl component for the first time. 52 void RegisterPnaclComponent(ComponentUpdateService* cus); 53 54 CrxComponent GetCrxComponent(); 55 56 // Determine the base directory for storing each version of PNaCl. 57 base::FilePath GetPnaclBaseDirectory(); 58 59 base::Version current_version() const { return current_version_; } 60 61 void set_current_version(const base::Version& current_version) { 62 current_version_ = current_version; 63 } 64 65 std::string current_fingerprint() const { return current_fingerprint_; } 66 67 void set_current_fingerprint(const std::string& current_fingerprint) { 68 current_fingerprint_ = current_fingerprint; 69 } 70 71 ComponentUpdateService* cus() const { return cus_; } 72 73 private: 74 base::Version current_version_; 75 std::string current_fingerprint_; 76 ComponentUpdateService* cus_; 77 DISALLOW_COPY_AND_ASSIGN(PnaclComponentInstaller); 78}; 79 80} // namespace component_updater 81 82#endif // CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_ 83