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      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 // This file declares Chrome uninstall related functions.
      6 
      7 #ifndef CHROME_INSTALLER_SETUP_UNINSTALL_H_
      8 #define CHROME_INSTALLER_SETUP_UNINSTALL_H_
      9 
     10 #include <shlobj.h>
     11 
     12 #include "base/strings/string16.h"
     13 #include "chrome/installer/util/util_constants.h"
     14 
     15 class BrowserDistribution;
     16 class CommandLine;
     17 
     18 namespace base {
     19 class FilePath;
     20 }
     21 
     22 namespace installer {
     23 
     24 class InstallationState;
     25 class InstallerState;
     26 class Product;
     27 
     28 enum DeleteResult {
     29   DELETE_SUCCEEDED,
     30   DELETE_NOT_EMPTY,
     31   DELETE_FAILED,
     32   DELETE_REQUIRES_REBOOT,
     33 };
     34 
     35 // Deletes |target_directory| (".../Application") and the vendor directories
     36 // (e.g., ".../Google/Chrome") if they are empty. Returns DELETE_SUCCEEDED if
     37 // either the directories were deleted or if they were not empty. Returns
     38 // DELETE_FAILED if any could not be deleted due to an error.
     39 DeleteResult DeleteChromeDirectoriesIfEmpty(
     40     const base::FilePath& application_directory);
     41 
     42 // This function removes all Chrome registration related keys. It returns true
     43 // if successful, otherwise false. The error code is set in |exit_code|.
     44 // |root| is the registry root (HKLM|HKCU) and |browser_entry_suffix| is the
     45 // suffix for default browser entry name in the registry (optional).
     46 bool DeleteChromeRegistrationKeys(const InstallerState& installer_state,
     47                                   BrowserDistribution* dist,
     48                                   HKEY root,
     49                                   const string16& browser_entry_suffix,
     50                                   InstallStatus* exit_code);
     51 
     52 // Removes any legacy registry keys from earlier versions of Chrome that are no
     53 // longer needed. This is used during autoupdate since we don't do full
     54 // uninstalls/reinstalls to update.
     55 void RemoveChromeLegacyRegistryKeys(BrowserDistribution* dist,
     56                                     const string16& chrome_exe);
     57 
     58 // This function uninstalls a product.  Hence we came up with this awesome
     59 // name for it.
     60 //
     61 // original_state: The installation state of all products on the system.
     62 // installer_state: State associated with this operation.
     63 // setup_path: Path to the executable (setup.exe) as it will be copied
     64 //           to temp folder before deleting Chrome folder.
     65 // dist: Represents the distribution to be uninstalled.
     66 // remove_all: Remove all shared files, registry entries as well.
     67 // force_uninstall: Uninstall without prompting for user confirmation or
     68 //                  any checks for Chrome running.
     69 // cmd_line: CommandLine that contains information about the command that
     70 //           was used to launch current uninstaller.
     71 installer::InstallStatus UninstallProduct(
     72     const InstallationState& original_state,
     73     const InstallerState& installer_state,
     74     const base::FilePath& setup_path,
     75     const Product& dist,
     76     bool remove_all,
     77     bool force_uninstall,
     78     const CommandLine& cmd_line);
     79 
     80 // Cleans up the installation directory after all uninstall operations have
     81 // completed. Depending on what products are remaining, setup.exe and the
     82 // installer archive may be deleted. Empty directories will be pruned (or
     83 // scheduled for pruning after reboot, if necessary).
     84 //
     85 // original_state: The installation state of all products on the system.
     86 // installer_state: State associated with this operation.
     87 // cmd_line: CommandLine that contains information about the command that
     88 //           was used to launch current uninstaller.
     89 // uninstall_status: the uninstall status so far (may change during invocation).
     90 void CleanUpInstallationDirectoryAfterUninstall(
     91     const InstallationState& original_state,
     92     const InstallerState& installer_state,
     93     const CommandLine& cmd_line,
     94     InstallStatus* uninstall_status);
     95 
     96 }  // namespace installer
     97 
     98 #endif  // CHROME_INSTALLER_SETUP_UNINSTALL_H_
     99