path: root/gcompris-installer.nsi.in

; Installer script for win32 GCompris
; Copyed from GAIM By Herman Bloggs <hermanator12002@yahoo.com>
; Bruno Coudoin for GCompris
;
; NOTE: this .NSI script is intended for NSIS 2.0 (finale release).
;

;--------------------------------
;Global Variables
Var name
Var LANG_IS_SET
Var ISSILENT
Var STARTUP_RUN_KEY

;--------------------------------
;Configuration

;The name var is set in .onInit
Name $name

!define GCOMPRIS_VERSION			"@VERSION@"

OutFile "gcompris-${GCOMPRIS_VERSION}.exe"

UninstallIcon ".\gcompris-uninstal.ico"

SetCompressor lzma
ShowInstDetails hide
ShowUninstDetails hide
SetDateSave on

; $name and $INSTDIR are set in .onInit function..

!include "MUI.nsh"
!include "Sections.nsh"

;--------------------------------
;Defines

!define GCOMPRIS_NSIS_INCLUDE_PATH		".\nsis"
!define GCOMPRIS_INSTALLER_DEPS			"..\win32-dev\gcompris-inst-deps"

!define GCOMPRIS_REG_KEY			"SOFTWARE\gcompris"
!define GCOMPRIS_UNINSTALL_KEY			"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\GCompris"
!define HKLM_APP_PATHS_KEY			"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\gcompris.exe"
!define GCOMPRIS_STARTUP_RUN_KEY		"SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
!define GCOMPRIS_UNINST_EXE			"gcompris-uninst.exe"
!define GCOMPRIS_REG_LANG			"Installer Language"

;--------------------------------
;Modern UI Configuration

  !define MUI_ICON				".\gcompris-install.ico"
  !define MUI_UNICON				".\gcompris-uninstal.ico"
  !define MUI_WELCOMEFINISHPAGE_BITMAP 		".\nsis\gcompris-intro.bmp"
  !define MUI_HEADERIMAGE
  !define MUI_HEADERIMAGE_BITMAP		".\nsis\gcompris-header.bmp"

  !define MUI_ABORTWARNING

  ;Finish Page config
  !define MUI_FINISHPAGE_RUN			"$INSTDIR\gcompris.exe"
  !define MUI_FINISHPAGE_RUN_NOTCHECKED
  !define MUI_FINISHPAGE_LINK			$(GcomprisFinishVisitWebSite)
  !define MUI_FINISHPAGE_LINK_LOCATION          "http://gcompris.net/"

;--------------------------------
;Pages

  !insertmacro MUI_PAGE_WELCOME

  ; GCompris install dir page
  !insertmacro MUI_PAGE_DIRECTORY

  !insertmacro MUI_PAGE_INSTFILES
  !insertmacro MUI_PAGE_FINISH

  !insertmacro MUI_UNPAGE_WELCOME
  !insertmacro MUI_UNPAGE_CONFIRM
  !insertmacro MUI_UNPAGE_INSTFILES
  !insertmacro MUI_UNPAGE_FINISH

;--------------------------------
;Languages

  @INSERT_TRANSLATIONS@

;--------------------------------
;Reserve Files
  ; Only need this if using bzip2 compression

  !insertmacro MUI_RESERVEFILE_INSTALLOPTIONS
  !insertmacro MUI_RESERVEFILE_LANGDLL
  ReserveFile "${NSISDIR}\Plugins\UserInfo.dll"


;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Start Install Sections ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;--------------------------------
;Uninstall any old version of GCompris

Section -SecUninstallOldGcompris
  ; Check install rights..
  Call CheckUserInstallRights
  Pop $R0

  ;If gcompris is currently set to run on startup,
  ;  save the section of the Registry where the setting is before uninstalling,
  ;  so we can put it back after installing the new version
  ClearErrors
  ReadRegStr $STARTUP_RUN_KEY HKCU "${GCOMPRIS_STARTUP_RUN_KEY}" "Gcompris"
  IfErrors +3
  StrCpy $STARTUP_RUN_KEY "HKCU"
  Goto +4
  ReadRegStr $STARTUP_RUN_KEY HKLM "${GCOMPRIS_STARTUP_RUN_KEY}" "Gcompris"
  IfErrors +2
  StrCpy $STARTUP_RUN_KEY "HKLM"

  StrCmp $R0 "HKLM" gcompris_hklm
  StrCmp $R0 "HKCU" gcompris_hkcu done

  gcompris_hkcu:
      ReadRegStr $R1 HKCU ${GCOMPRIS_REG_KEY} ""
      ReadRegStr $R2 HKCU ${GCOMPRIS_REG_KEY} "Version"
      ReadRegStr $R3 HKCU "${GCOMPRIS_UNINSTALL_KEY}" "UninstallString"
      Goto try_uninstall

  gcompris_hklm:
      ReadRegStr $R1 HKLM ${GCOMPRIS_REG_KEY} ""
      ReadRegStr $R2 HKLM ${GCOMPRIS_REG_KEY} "Version"
      ReadRegStr $R3 HKLM "${GCOMPRIS_UNINSTALL_KEY}" "UninstallString"

  ; If previous version exists .. remove
  try_uninstall:
    StrCmp $R1 "" done
      ; Version key started with 0.60a3. Prior versions can't be
      ; automaticlly uninstalled.
      StrCmp $R2 "" uninstall_problem
        ; Check if we have uninstall string..
        IfFileExists $R3 0 uninstall_problem
          ; Have uninstall string.. go ahead and uninstall.

	  ; In this case just wipe out previous GCompris install dir..
	  ; We get here because versions 0.60a1 and 0.60a2 don't have versions set in the registry
	  ; and versions 0.60 and lower did not correctly set the uninstall reg string
	  ; (the string was set in quotes)
          MessageBox MB_YESNO $(GcomprisPromptWipeout) IDYES do_wipeout IDNO cancel_install
          cancel_install:
            Quit

          SetOverwrite on
          ; Need to copy uninstaller outside of the install dir
          ClearErrors
          CopyFiles /SILENT $R3 "$TEMP\${GCOMPRIS_UNINST_EXE}"
          SetOverwrite off
          IfErrors uninstall_problem
            ; Ready to uninstall..
            ClearErrors
	    ExecWait '"$TEMP\${GCOMPRIS_UNINST_EXE}" /S _?=$R1'
	    IfErrors exec_error
              Delete "$TEMP\${GCOMPRIS_UNINST_EXE}"
	      Goto done

	    exec_error:
              Delete "$TEMP\${GCOMPRIS_UNINST_EXE}"
              Goto uninstall_problem

        uninstall_problem:
	  ; In this case just wipe out previous GCompris install dir..
	  ; We get here because versions 0.60a1 and 0.60a2 don't have versions set in the registry
	  ; and versions 0.60 and lower did not correctly set the uninstall reg string
	  ; (the string was set in quotes)
          IfSilent do_wipeout
          MessageBox MB_YESNO "Uninstall previous version?" IDYES do_wipeout IDNO done

          do_wipeout:
            StrCmp $R0 "HKLM" gcompris_del_lm_reg gcompris_del_cu_reg
            gcompris_del_cu_reg:
              DeleteRegKey HKCU ${GCOMPRIS_REG_KEY}
              Goto uninstall_prob_cont
            gcompris_del_lm_reg:
              DeleteRegKey HKLM ${GCOMPRIS_REG_KEY}

            uninstall_prob_cont:
	      RMDir /r "$R1"

  done:
SectionEnd


;--------------------------------
;GCompris Install Section

Section "GCompris" SecGcompris
  SectionIn 1 RO

  ; Check install rights..
  Call CheckUserInstallRights
  Pop $R0

  ; Get GTK+ lib dir if we have it..

  StrCmp $R0 "NONE" gcompris_none
  StrCmp $R0 "HKLM" gcompris_hklm gcompris_hkcu

  gcompris_hklm:
    WriteRegStr HKLM "${HKLM_APP_PATHS_KEY}" "" "$INSTDIR\gcompris.exe"
    WriteRegStr HKLM "${HKLM_APP_PATHS_KEY}" "Path" "$R1\bin"
    WriteRegStr HKLM ${GCOMPRIS_REG_KEY} "" "$INSTDIR"
    WriteRegStr HKLM ${GCOMPRIS_REG_KEY} "Version" "${GCOMPRIS_VERSION}"
    WriteRegStr HKLM "${GCOMPRIS_UNINSTALL_KEY}" "DisplayName" "GCompris Uninstall"
    WriteRegStr HKLM "${GCOMPRIS_UNINSTALL_KEY}" "UninstallString" "$INSTDIR\${GCOMPRIS_UNINST_EXE}"
    ; Sets scope of the desktop and Start Menu entries for all users.
    SetShellVarContext "all"
    Goto gcompris_install_files

  gcompris_hkcu:
    WriteRegStr HKCU ${GCOMPRIS_REG_KEY} "" "$INSTDIR"
    WriteRegStr HKCU ${GCOMPRIS_REG_KEY} "Version" "${GCOMPRIS_VERSION}"
    WriteRegStr HKCU "${GCOMPRIS_UNINSTALL_KEY}" "DisplayName" "GCompris Uninstall"
    WriteRegStr HKCU "${GCOMPRIS_UNINSTALL_KEY}" "UninstallString" "$INSTDIR\${GCOMPRIS_UNINST_EXE}"
    Goto gcompris_install_files

  gcompris_none:

  gcompris_install_files:
    SetOutPath "$INSTDIR"
    ; GCompris files
    SetOverwrite on
    File /r .\win32-install-dir\*.*

    ; If this is under NT4, delete the SILC support stuff
    ; there is a bug that will prevent any account from connecting
    ; See https://lists.silcnet.org/pipermail/silc-devel/2005-January/001588.html
    Call GetWindowsVersion
    Pop $R2
    StrCmp $R2 "NT 4.0" 0 nt4_done
    Delete "$INSTDIR\plugins\libsilc.dll"
    Delete "$INSTDIR\silcclient.dll"
    Delete "$INSTDIR\silc.dll"

    nt4_done:

    CreateDirectory "$SMPROGRAMS\GCompris"
    CreateShortCut "$SMPROGRAMS\GCompris\GCompris.lnk" "$INSTDIR\gcompris.exe"
    CreateShortCut "$DESKTOP\GCompris.lnk" "$INSTDIR\gcompris.exe"
    CreateShortCut "$SMPROGRAMS\GCompris\GCompris Admin.lnk" "$INSTDIR\gcompris.exe" `-a` "$INSTDIR\gcompris.exe" 1
    CreateShortCut "$DESKTOP\GCompris Admin.lnk" "$INSTDIR\gcompris.exe" `-a` "$INSTDIR\gcompris.exe" 1
    SetOutPath "$INSTDIR"

    ; If we don't have install rights.. we're done
    StrCmp $R0 "NONE" done
    CreateShortCut "$SMPROGRAMS\GCompris\Uninstall.lnk" "$INSTDIR\${GCOMPRIS_UNINST_EXE}"
    SetOverwrite off

    ; Write out installer language
    WriteRegStr HKCU "${GCOMPRIS_REG_KEY}" "${GCOMPRIS_REG_LANG}" "$LANGUAGE"

    ; write out uninstaller
    SetOverwrite on
    WriteUninstaller "$INSTDIR\${GCOMPRIS_UNINST_EXE}"
    SetOverwrite off

    ; If we previously had gcompris setup to run on startup, make it do so again
    StrCmp $STARTUP_RUN_KEY "HKCU" +1 +2
    WriteRegStr HKCU "${GCOMPRIS_STARTUP_RUN_KEY}" "Gcompris" "$INSTDIR\gcompris.exe"
    StrCmp $STARTUP_RUN_KEY "HKLM" +1 +2
    WriteRegStr HKLM "${GCOMPRIS_STARTUP_RUN_KEY}" "Gcompris" "$INSTDIR\gcompris.exe"

  done:
SectionEnd ; end of default GCompris section

;--------------------------------
;Uninstaller Section


Section Uninstall
  Call un.CheckUserInstallRights
  Pop $R0
  StrCmp $R0 "NONE" no_rights
  StrCmp $R0 "HKCU" try_hkcu try_hklm

  try_hkcu:
    ReadRegStr $R0 HKCU ${GCOMPRIS_REG_KEY} ""
    StrCmp $R0 $INSTDIR 0 cant_uninstall
      ; HKCU install path matches our INSTDIR.. so uninstall
      DeleteRegKey HKCU ${GCOMPRIS_REG_KEY}
      DeleteRegKey HKCU "${GCOMPRIS_UNINSTALL_KEY}"
      Goto cont_uninstall

  try_hklm:
    ReadRegStr $R0 HKLM ${GCOMPRIS_REG_KEY} ""
    StrCmp $R0 $INSTDIR 0 try_hkcu
      ; HKLM install path matches our INSTDIR.. so uninstall
      DeleteRegKey HKLM ${GCOMPRIS_REG_KEY}
      DeleteRegKey HKLM "${GCOMPRIS_UNINSTALL_KEY}"
      DeleteRegKey HKLM "${HKLM_APP_PATHS_KEY}"
      ; Sets start menu and desktop scope to all users..
      SetShellVarContext "all"

  cont_uninstall:
    ; The WinPrefs plugin may have left this behind..
    DeleteRegValue HKCU "${GCOMPRIS_STARTUP_RUN_KEY}" "Gcompris"
    DeleteRegValue HKLM "${GCOMPRIS_STARTUP_RUN_KEY}" "Gcompris"
    ; Remove Language preference info
    DeleteRegKey HKCU ${GCOMPRIS_REG_KEY} ;${MUI_LANGDLL_REGISTRY_ROOT} ${MUI_LANGDLL_REGISTRY_KEY}

    RMDir /r "$INSTDIR\etc"
    RMDir /r "$INSTDIR\GTK"
    RMDir /r "$INSTDIR\lib"
    RMDir /r "$INSTDIR\share"
    Delete "$INSTDIR\gcompris.exe"
    Delete "$INSTDIR\${GCOMPRIS_UNINST_EXE}"
    Delete "$INSTDIR\COPYING"
    Delete "$INSTDIR\Changelog"
    Delete "$INSTDIR\README"
    Delete "$INSTDIR\SDL.dll"
    Delete "$INSTDIR\SDL_mixer.dll"
    Delete "$INSTDIR\_cairo.pyd"
    Delete "$INSTDIR\_gtk.pyd"
    Delete "$INSTDIR\_socket.pyd"
    Delete "$INSTDIR\_ssl.pyd"
    Delete "$INSTDIR\_sqlite.pyd"
    Delete "$INSTDIR\_tkinter.pyd"
    Delete "$INSTDIR\atk.pyd"
    Delete "$INSTDIR\bz2.pyd"
    Delete "$INSTDIR\freetype6.dll"
    Delete "$INSTDIR\gnucap.exe"
    Delete "$INSTDIR\gnuchess.exe"
    Delete "$INSTDIR\gobject.pyd"
    Delete "$INSTDIR\gspawn-win32-helper.exe"
    Delete "$INSTDIR\iconv.dll"
    Delete "$INSTDIR\intl.dll"
    Delete "$INSTDIR\jpeg62.dll"
    Delete "$INSTDIR\libart_lgpl_2-2.dll"
    Delete "$INSTDIR\libatk-1.0-0.dll"
    Delete "$INSTDIR\libcairo-2.dll"
    Delete "$INSTDIR\libfontconfig-1.dll"
    Delete "$INSTDIR\libgdk-win32-2.0-0.dll"
    Delete "$INSTDIR\libgdk_pixbuf-2.0-0.dll"
    Delete "$INSTDIR\libglib-2.0-0.dll"
    Delete "$INSTDIR\libgmodule-2.0-0.dll"
    Delete "$INSTDIR\libgnomecanvas-2-0.dll"
    Delete "$INSTDIR\libgobject-2.0-0.dll"
    Delete "$INSTDIR\libgthread-2.0-0.dll"
    Delete "$INSTDIR\libgtk-win32-2.0-0.dll"
    Delete "$INSTDIR\libiconv-2.dll"
    Delete "$INSTDIR\libintl-2.dll"
    Delete "$INSTDIR\libpango-1.0-0.dll"
    Delete "$INSTDIR\libpangocairo-1.0-0.dll"
    Delete "$INSTDIR\libpangoft2-1.0-0.dll"
    Delete "$INSTDIR\libpangowin32-1.0-0.dll"
    Delete "$INSTDIR\libreadline.dll"
    Delete "$INSTDIR\libxml2.dll"
    Delete "$INSTDIR\msvcr71.dll"
    Delete "$INSTDIR\pango.pyd"
    Delete "$INSTDIR\pangocairo.pyd"
    Delete "$INSTDIR\pthreadGC.dll"
    Delete "$INSTDIR\python24.dll"
    Delete "$INSTDIR\python24.zip"
    Delete "$INSTDIR\select.pyd"
    Delete "$INSTDIR\setup.py"
    Delete "$INSTDIR\sqlite3.dll"
    Delete "$INSTDIR\unicodedata.pyd"
    Delete "$INSTDIR\xmlparse.dll"
    Delete "$INSTDIR\xmltok.dll"
    Delete "$INSTDIR\zlib.pyd"
    Delete "$INSTDIR\zlib1.dll"
    Delete "$INSTDIR\README.mingw"
    Delete "$INSTDIR\config.h.mingw"
    Delete "$INSTDIR\libexpat.dll"
    Delete "$INSTDIR\libgio-2.0-0.dll"
    Delete "$INSTDIR\libogg-0.dll"
    Delete "$INSTDIR\libpng12-0.dll"
    Delete "$INSTDIR\libvorbis-0.dll"
    Delete "$INSTDIR\libvorbisfile-3.dll"
    Delete "$INSTDIR\pthreadGC2.dll"

    ;Try to remove GCompris install dir .. if empty
    RMDir "$INSTDIR"

    ; Shortcuts..
    RMDir /r "$SMPROGRAMS\GCompris"
    Delete "$DESKTOP\GCompris.lnk"
    Delete "$DESKTOP\GCompris Admin.lnk"

    Goto done

  cant_uninstall:
    IfSilent skip_mb
    MessageBox MB_OK $(unGcomprisUninstallError1) IDOK
    skip_mb:
    Quit

  no_rights:
    IfSilent skip_mb1
    MessageBox MB_OK $(unGcomprisUninstallError2) IDOK
    skip_mb1:
    Quit

  done:
SectionEnd ; end of uninstall section


;--------------------------------
;Functions

Function CheckUserInstallRights
	ClearErrors
	UserInfo::GetName
	IfErrors Win9x
	Pop $0
	UserInfo::GetAccountType
	Pop $1

	StrCmp $1 "Admin" 0 +3
                StrCpy $1 "HKLM"
		Goto done
	StrCmp $1 "Power" 0 +3
                StrCpy $1 "HKLM"
		Goto done
	StrCmp $1 "User" 0 +3
		StrCpy $1 "HKCU"
		Goto done
	StrCmp $1 "Guest" 0 +3
		StrCpy $1 "NONE"
		Goto done
	; Unknown error
	StrCpy $1 "NONE"
        Goto done

	Win9x:
		StrCpy $1 "HKLM"

	done:
        Push $1
FunctionEnd

Function un.CheckUserInstallRights
	ClearErrors
	UserInfo::GetName
	IfErrors Win9x
	Pop $0
	UserInfo::GetAccountType
	Pop $1

	StrCmp $1 "Admin" 0 +3
                StrCpy $1 "HKLM"
		Goto done
	StrCmp $1 "Power" 0 +3
                StrCpy $1 "HKLM"
		Goto done
	StrCmp $1 "User" 0 +3
		StrCpy $1 "HKCU"
		Goto done
	StrCmp $1 "Guest" 0 +3
		StrCpy $1 "NONE"
		Goto done
	; Unknown error
	StrCpy $1 "NONE"
        Goto done

	Win9x:
		StrCpy $1 "HKLM"

	done:
        Push $1
FunctionEnd

;
; Usage:
;   Push $0 ; Path string
;   Call VerifyDir
;   Pop $0 ; 0 - Bad path  1 - Good path
;
Function VerifyDir
  Pop $0
  Loop:
    IfFileExists $0 dir_exists
    StrCpy $1 $0 ; save last
    Push $0
    Call GetParent
    Pop $0
    StrLen $2 $0
    ; IfFileExists "C:" on xp returns true and on win2k returns false
    ; So we're done in such a case..
    IntCmp $2 2 loop_done
    ; GetParent of "C:" returns ""
    IntCmp $2 0 loop_done
    Goto Loop

  loop_done:
    StrCpy $1 "$0\GcomprisFooB"
    ; Check if we can create dir on this drive..
    ClearErrors
    CreateDirectory $1
    IfErrors DirBad DirGood

  dir_exists:
    ClearErrors
    FileOpen $1 "$0\gcomprisfoo.bar" w
    IfErrors PathBad PathGood

    DirGood:
      RMDir $1
      Goto PathGood1

    DirBad:
      RMDir $1
      Goto PathBad1

    PathBad:
      FileClose $1
      Delete "$0\gcomprisfoo.bar"
      PathBad1:
      StrCpy $0 "0"
      Push $0
      Return

    PathGood:
      FileClose $1
      Delete "$0\gcomprisfoo.bar"
      PathGood1:
      StrCpy $0 "1"
      Push $0
FunctionEnd

Function .onVerifyInstDir
  Push $INSTDIR
  Call VerifyDir
  Pop $0
  StrCmp $0 "0" 0 dir_good
    Abort
  dir_good:
FunctionEnd

; GetParent
; input, top of stack  (e.g. C:\Program Files\Poop)
; output, top of stack (replaces, with e.g. C:\Program Files)
; modifies no other variables.
;
; Usage:
;   Push "C:\Program Files\Directory\Whatever"
;   Call GetParent
;   Pop $R0
;   ; at this point $R0 will equal "C:\Program Files\Directory"
Function GetParent
   Exch $0 ; old $0 is on top of stack
   Push $1
   Push $2
   StrCpy $1 -1
   loop:
     StrCpy $2 $0 1 $1
     StrCmp $2 "" exit
     StrCmp $2 "\" exit
     IntOp $1 $1 - 1
   Goto loop
   exit:
     StrCpy $0 $0 $1
     Pop $2
     Pop $1
     Exch $0 ; put $0 on top of stack, restore $0 to original value
FunctionEnd


Function RunCheck
  System::Call 'kernel32::OpenMutex(i 2031617, b 0, t "gcompris_is_running") i .R0'
  IntCmp $R0 0 done
  MessageBox MB_OK|MB_ICONEXCLAMATION $(GcomprisIsRunning) IDOK
    Abort
  done:
FunctionEnd

Function un.RunCheck
  System::Call 'kernel32::OpenMutex(i 2031617, b 0, t "gcompris_is_running") i .R0'
  IntCmp $R0 0 done
  MessageBox MB_OK|MB_ICONEXCLAMATION $(GcomprisIsRunning) IDOK
    Abort
  done:
FunctionEnd

Function .onInit
  System::Call 'kernel32::CreateMutexA(i 0, i 0, t "gcompris_installer_running") i .r1 ?e'
  Pop $R0
  StrCmp $R0 0 +3
    MessageBox MB_OK|MB_ICONEXCLAMATION $(InstallerIsRunning)
    Abort
  Call RunCheck
  StrCpy $name "GCompris ${GCOMPRIS_VERSION}"
  StrCpy $ISSILENT "/NOUI"

  ; GTK installer has two silent states.. one with Message boxes, one without
  ; If gcompris installer was run silently, we want to supress gtk installer msg boxes.
  IfSilent 0 set_gtk_normal
      StrCpy $ISSILENT "/S"
  set_gtk_normal:

  Call ParseParameters

  ; Select Language
  IntCmp $LANG_IS_SET 1 skip_lang
    ; Display Language selection dialog
    !insertmacro MUI_LANGDLL_DISPLAY
    skip_lang:

  ; If install path was set on the command, use it.
  StrCmp $INSTDIR "" 0 instdir_done

  ;  If gcompris is currently intalled, we should default to where it is currently installed
  ClearErrors
  ReadRegStr $INSTDIR HKCU "${GCOMPRIS_REG_KEY}" ""
  IfErrors +2
  StrCmp $INSTDIR "" 0 instdir_done
  ReadRegStr $INSTDIR HKLM "${GCOMPRIS_REG_KEY}" ""
  IfErrors +2
  StrCmp $INSTDIR "" 0 instdir_done

  Call CheckUserInstallRights
  Pop $0

  StrCmp $0 "HKLM" 0 user_dir
    StrCpy $INSTDIR "$PROGRAMFILES\GCompris"
    Goto instdir_done
  user_dir:
    StrCpy $2 "$SMPROGRAMS"
    Push $2
    Call GetParent
    Call GetParent
    Pop $2
    StrCpy $INSTDIR "$2\GCompris"

  instdir_done:

FunctionEnd

Function un.onInit
  Call un.RunCheck
  StrCpy $name "GCompris ${GCOMPRIS_VERSION}"

  ; Get stored language prefrence
  ReadRegStr $LANGUAGE HKCU ${GCOMPRIS_REG_KEY} "${GCOMPRIS_REG_LANG}"

FunctionEnd


; GetParameters
; input, none
; output, top of stack (replaces, with e.g. whatever)
; modifies no other variables.

Function GetParameters

   Push $R0
   Push $R1
   Push $R2
   Push $R3

   StrCpy $R2 1
   StrLen $R3 $CMDLINE

   ;Check for quote or space
   StrCpy $R0 $CMDLINE $R2
   StrCmp $R0 '"' 0 +3
     StrCpy $R1 '"'
     Goto loop
   StrCpy $R1 " "

   loop:
     IntOp $R2 $R2 + 1
     StrCpy $R0 $CMDLINE 1 $R2
     StrCmp $R0 $R1 get
     StrCmp $R2 $R3 get
     Goto loop

   get:
     IntOp $R2 $R2 + 1
     StrCpy $R0 $CMDLINE 1 $R2
     StrCmp $R0 " " get
     StrCpy $R0 $CMDLINE "" $R2

   Pop $R3
   Pop $R2
   Pop $R1
   Exch $R0

FunctionEnd

 ; StrStr
 ; input, top of stack = string to search for
 ;        top of stack-1 = string to search in
 ; output, top of stack (replaces with the portion of the string remaining)
 ; modifies no other variables.
 ;
 ; Usage:
 ;   Push "this is a long ass string"
 ;   Push "ass"
 ;   Call StrStr
 ;   Pop $R0
 ;  ($R0 at this point is "ass string")

Function StrStr
   Exch $R1 ; st=haystack,old$R1, $R1=needle
   Exch    ; st=old$R1,haystack
   Exch $R2 ; st=old$R1,old$R2, $R2=haystack
   Push $R3
   Push $R4
   Push $R5
   StrLen $R3 $R1
   StrCpy $R4 0
   ; $R1=needle
   ; $R2=haystack
   ; $R3=len(needle)
   ; $R4=cnt
   ; $R5=tmp
   loop:
     StrCpy $R5 $R2 $R3 $R4
     StrCmp $R5 $R1 done
     StrCmp $R5 "" done
     IntOp $R4 $R4 + 1
     Goto loop
   done:
   StrCpy $R1 $R2 "" $R4
   Pop $R5
   Pop $R4
   Pop $R3
   Pop $R2
   Exch $R1
FunctionEnd

;
; Parse the Command line
;
; Unattended install command line parameters
; /L=Language e.g.: /L=1033
;
Function ParseParameters
  IntOp $LANG_IS_SET 0 + 0
  Call GetParameters
  Pop $R0
  Push $R0
  Push "L="
  Call StrStr
  Pop $R1
  StrCmp $R1 "" next
  StrCpy $R1 $R1 4 2 ; Strip first 2 chars of string
  StrCpy $LANGUAGE $R1
  IntOp $LANG_IS_SET 0 + 1
  next:
FunctionEnd

; GetWindowsVersion
;
; Based on Yazno's function, http://yazno.tripod.com/powerpimpit/
; Updated by Joost Verburg
;
; Returns on top of stack
;
; Windows Version (95, 98, ME, NT x.x, 2000, XP, 2003)
; or
; '' (Unknown Windows Version)
;
; Usage:
;   Call GetWindowsVersion
;   Pop $R0
;
; at this point $R0 is "NT 4.0" or whatnot
Function GetWindowsVersion

  Push $R0
  Push $R1

  ReadRegStr $R0 HKLM \
  "SOFTWARE\Microsoft\Windows NT\CurrentVersion" CurrentVersion

  IfErrors 0 lbl_winnt

  ; we are not NT
  ReadRegStr $R0 HKLM \
  "SOFTWARE\Microsoft\Windows\CurrentVersion" VersionNumber

  StrCpy $R1 $R0 1
  StrCmp $R1 '4' 0 lbl_error

  StrCpy $R1 $R0 3

  StrCmp $R1 '4.0' lbl_win32_95
  StrCmp $R1 '4.9' lbl_win32_ME lbl_win32_98

  lbl_win32_95:
    StrCpy $R0 '95'
  Goto lbl_done

  lbl_win32_98:
    StrCpy $R0 '98'
  Goto lbl_done

  lbl_win32_ME:
    StrCpy $R0 'ME'
  Goto lbl_done

  lbl_winnt:
    StrCpy $R1 $R0 1

    StrCmp $R1 '3' lbl_winnt_x
    StrCmp $R1 '4' lbl_winnt_x

    StrCpy $R1 $R0 3

    StrCmp $R1 '5.0' lbl_winnt_2000
    StrCmp $R1 '5.1' lbl_winnt_XP
    StrCmp $R1 '5.2' lbl_winnt_2003 lbl_error

  lbl_winnt_x:
    StrCpy $R0 "NT $R0" 6
  Goto lbl_done

  lbl_winnt_2000:
    Strcpy $R0 '2000'
  Goto lbl_done

  lbl_winnt_XP:
    Strcpy $R0 'XP'
  Goto lbl_done

  lbl_winnt_2003:
    Strcpy $R0 '2003'
  Goto lbl_done

  lbl_error:
    Strcpy $R0 ''
  lbl_done:

  Pop $R1
  Exch $R0
FunctionEnd