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windowsnsis

Getting a path for each component in NSIS

I'm trying to create an installer with NSIS that installs 3 different components to three different paths. I want the users to select/confirm each of them, but they should only be asked if they've selected the relevant component.

Since pages can't appear in sections, I'm at a loss how to do this

Any suggestions?

Thanks in advance :-)

Solution

  • You can use multiple directory pages:

    !include LogicLib.nsh

InstallDir $ProgramFiles32\Foo\Bar

Var Comp1Path
Var Comp2Path

Page Components
PageEx Directory
    DirText "Blah blah 1"
    DirVar $Comp1Path
    PageCallbacks Comp1Pre
PageExEnd
PageEx Directory
    DirText "Blah blah 2"
    DirVar $Comp2Path
    PageCallbacks Comp2Pre
PageExEnd
Page InstFiles

Section /o Comp1 SID_C1
DetailPrint "Installing Comp1 to $Comp1Path"
SectionEnd

Section Comp2 SID_C2
DetailPrint "Installing Comp2 to $Comp2Path"
SectionEnd

Function Comp1Pre
StrCpy $Comp1Path $InstDir\Comp1
${IfNot} ${SectionIsSelected} ${SID_C1}
    Abort ; Skipping this page
${EndIf}
FunctionEnd

Function Comp2Pre
StrCpy $Comp2Path $InstDir\Comp2
${IfNot} ${SectionIsSelected} ${SID_C2}
    Abort
${EndIf}
FunctionEnd

; In this example the next button on the components page might be the last page before InstFiles so we have to update the button text
!include WinMessages.nsh
Function .onSelChange
GetDlgItem $1 $hwndParent 1
${If} ${SectionIsSelected} ${SID_C1}
${OrIf} ${SectionIsSelected} ${SID_C2}
    SendMessage $1 ${WM_SETTEXT} 0 "STR:$(^NextBtn)"
${Else}
    SendMessage $1 ${WM_SETTEXT} 0 "STR:$(^InstallBtn)"
${EndIf}
FunctionEnd

    Another alternative would be to create a custom page with nsDialogs and just disable or hide the text fields the user does not need to confirm...