chrome/installer/launcher_support/chrome_launcher_support.h

   1 // Copyright (c) 2012 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_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_
   6 #define CHROME_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_
   7
   8 namespace base {
   9 class FilePath;
  10 }
  11
  12 namespace chrome_launcher_support {
  13
  14 enum InstallationLevel {
  15   USER_LEVEL_INSTALLATION,
  16   SYSTEM_LEVEL_INSTALLATION,
  17 };
  18
  19 enum InstallationState {
  20   NOT_INSTALLED,
  21   INSTALLED_AT_USER_LEVEL,
  22   INSTALLED_AT_SYSTEM_LEVEL,
  23 };
  24
  25 // Returns the path to an existing setup.exe at the specified level, if it can
  26 // be found via Omaha client state.
  27 base::FilePath GetSetupExeForInstallationLevel(InstallationLevel level);
  28
  29 // Returns the path to an installed chrome.exe at the specified level, if it can
  30 // be found via Omaha client state. Prefers the installer from a multi-install,
  31 // but may also return that of a single-install of Chrome if no multi-install
  32 // exists.
  33 base::FilePath GetChromePathForInstallationLevel(InstallationLevel level);
  34
  35 // Returns the path to an installed app_host.exe at the specified level, if
  36 // it can be found via Omaha client state.
  37 base::FilePath GetAppHostPathForInstallationLevel(InstallationLevel level);
  38
  39 // Returns the path to an installed chrome.exe, or an empty path. Prefers a
  40 // system-level installation to a user-level installation. Uses Omaha client
  41 // state to identify a Chrome installation location.
  42 // The file path returned (if any) is guaranteed to exist.
  43 base::FilePath GetAnyChromePath();
  44
  45 // Returns the path to an installed app_host.exe, or an empty path. Prefers a
  46 // system-level installation to a user-level installation. Uses Omaha client
  47 // state to identify a App Host installation location.
  48 // The file path returned (if any) is guaranteed to exist.
  49 base::FilePath GetAnyAppHostPath();
  50
  51 // Uninstalls the legacy app launcher by launching setup.exe with the uninstall
  52 // arguments from the App Launcher ClientState registry key. The uninstall will
  53 // run asynchronously.
  54 void UninstallLegacyAppLauncher(InstallationLevel level);
  55
  56 // Returns true if App Host is installed (system-level or user-level),
  57 // or in the same directory as the current executable.
  58 bool IsAppHostPresent();
  59
  60 // Returns the app launcher installation state. If the launcher is installed
  61 // at both system level and user level, system level is returned.
  62 InstallationState GetAppLauncherInstallationState();
  63
  64 // Returns true if App Launcher is installed (system-level or user-level).
  65 bool IsAppLauncherPresent();
  66
  67 // Returns true if the Chrome browser is installed (system-level or user-level).
  68 // If this is running in an official build, it will check if a non-canary build
  69 // if installed. If it is not an official build, it will always return true.
  70 bool IsChromeBrowserPresent();
  71
  72 }  // namespace chrome_launcher_support
  73
  74 #endif  // CHROME_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_