base/file_version_info.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 BASE_FILE_VERSION_INFO_H__
   6 #define BASE_FILE_VERSION_INFO_H__
   7
   8 #include "build/build_config.h"
   9
  10 #if defined(OS_WIN)
  11 #include <windows.h>
  12 // http://blogs.msdn.com/oldnewthing/archive/2004/10/25/247180.aspx
  13 extern "C" IMAGE_DOS_HEADER __ImageBase;
  14 #endif  // OS_WIN
  15
  16 #include <string>
  17
  18 #include "base/base_export.h"
  19 #include "base/string16.h"
  20
  21 class FilePath;
  22
  23 // Provides an interface for accessing the version information for a file. This
  24 // is the information you access when you select a file in the Windows Explorer,
  25 // right-click select Properties, then click the Version tab, and on the Mac
  26 // when you select a file in the Finder and do a Get Info.
  27 //
  28 // This list of properties is straight out of Win32's VerQueryValue
  29 // <http://msdn.microsoft.com/en-us/library/ms647464.aspx> and the Mac
  30 // version returns values from the Info.plist as appropriate. TODO(avi): make
  31 // this a less-obvious Windows-ism.
  32
  33 class FileVersionInfo {
  34  public:
  35   virtual ~FileVersionInfo() {}
  36 #if defined(OS_WIN) || defined(OS_MACOSX)
  37   // Creates a FileVersionInfo for the specified path. Returns NULL if something
  38   // goes wrong (typically the file does not exit or cannot be opened). The
  39   // returned object should be deleted when you are done with it.
  40   BASE_EXPORT static FileVersionInfo* CreateFileVersionInfo(
  41       const FilePath& file_path);
  42 #endif  // OS_WIN || OS_MACOSX
  43
  44 #if defined(OS_WIN)
  45   // Creates a FileVersionInfo for the specified module. Returns NULL in case
  46   // of error. The returned object should be deleted when you are done with it.
  47   BASE_EXPORT static FileVersionInfo* CreateFileVersionInfoForModule(
  48       HMODULE module);
  49
  50   // Creates a FileVersionInfo for the current module. Returns NULL in case
  51   // of error. The returned object should be deleted when you are done with it.
  52   // This function should be inlined so that the "current module" is evaluated
  53   // correctly, instead of being the module that contains base.
  54   __forceinline static FileVersionInfo*
  55   CreateFileVersionInfoForCurrentModule() {
  56     HMODULE module = reinterpret_cast<HMODULE>(&__ImageBase);
  57     return CreateFileVersionInfoForModule(module);
  58   }
  59 #else
  60   // Creates a FileVersionInfo for the current module. Returns NULL in case
  61   // of error. The returned object should be deleted when you are done with it.
  62   BASE_EXPORT static FileVersionInfo* CreateFileVersionInfoForCurrentModule();
  63 #endif  // OS_WIN
  64
  65   // Accessors to the different version properties.
  66   // Returns an empty string if the property is not found.
  67   virtual string16 company_name() = 0;
  68   virtual string16 company_short_name() = 0;
  69   virtual string16 product_name() = 0;
  70   virtual string16 product_short_name() = 0;
  71   virtual string16 internal_name() = 0;
  72   virtual string16 product_version() = 0;
  73   virtual string16 private_build() = 0;
  74   virtual string16 special_build() = 0;
  75   virtual string16 comments() = 0;
  76   virtual string16 original_filename() = 0;
  77   virtual string16 file_description() = 0;
  78   virtual string16 file_version() = 0;
  79   virtual string16 legal_copyright() = 0;
  80   virtual string16 legal_trademarks() = 0;
  81   virtual string16 last_change() = 0;
  82   virtual bool is_official_build() = 0;
  83 };
  84
  85 #endif  // BASE_FILE_VERSION_INFO_H__