kojiroh
27th July 2007 21:09 UTC

dirpage plugin and UI interraction
After using the plugin dirpage with directory page, i test the string entered in the directory field and if the test is wrong, i want to simulate a click on the "back' button or if possible show the directory page again.

So my question is how to simulate a click on the back button or how to show the MUI_PAGE_DIRECTORY

I put the code here for more explication

!macro MUI_FUNCTION_DIRECTORYPAGE PRE SHOW LEAVE

  Function "${PRE}"
    StrCmp $MUI_INSTALL_ABORTED 1 0 +2
      Abort
      
    ${If} $MUI_USE_MAINTENANCE_CMDLINE == "TRUE"
      !ifdef MUI_SKIP_DIRECTORY_PAGE
        Abort
      !else
        !ifdef MUI_DISABLE_FIRST_BACKBUTTON
          GetDlgItem $MUI_TEMP1 $HWNDPARENT 3
          EnableWindow $MUI_TEMP1 0
          !undef MUI_DISABLE_FIRST_BACKBUTTON
        !else ifdef MUI_HIDE_FIRST_BACKBUTTON
          GetDlgItem $MUI_TEMP1 $HWNDPARENT 3
          ShowWindow $MUI_TEMP1 0
          !undef MUI_HIDE_FIRST_BACKBUTTON
        !endif
      !endif
    ${EndIf}
    
    !insertmacro MUI_HEADER_TEXT_PAGE $(MUI_${MUI_PAGE_UNINSTALLER_PREFIX}TEXT_DIRECTORY_TITLE) $(MUI_${MUI_PAGE_UNINSTALLER_PREFIX}TEXT_DIRECTORY_SUBTITLE)
    
    !ifdef MUI_USE_DIRPAGEDLL
        # Variable for define the default instdir path
        Var /GLOBAL DEFAULT_INSTDIR
        
        ${IF} $DEFAULT_INSTDIR == ""
                StrCpy $DEFAULT_INSTDIR "$INSTDIR"
        ${ENDIF}
        
        # if $instdir is empty, re-set the default path
        ${IF} $INSTDIR == ""
                StrCpy $INSTDIR "$DEFAULT_INSTDIR"
        ${ENDIF}

        InitPluginsDir
        dirpage::show /noicon /spaceavailtext "%d: Total: %t\tFree: %f" /text "$(^DirBrowseText)" $INSTDIR
        Pop $R0  ; Get result

        StrCmp $R0 "success" ok
        StrCmp $R0 "cancel" skip
        MessageBox MB_OK "Dir Page error: $R0"
        skip:
        Return
        ok:
        
        ;Pop $INSTDIR
        pop $R1
        
        ${IF} $R1 == ""
           ; here the code for emulate the back button click
or showing the directory page
        ${ENDIF}        

    !else
      !insertmacro MUI_PAGE_FUNCTION_CUSTOM PRE
    !endif
  FunctionEnd

  !ifndef MUI_USE_DIRPAGEDLL
    Function "${SHOW}"
      !insertmacro MUI_PAGE_FUNCTION_CUSTOM SHOW
    FunctionEnd
  !endif

  Function "${LEAVE}"
    !insertmacro MUI_PAGE_FUNCTION_CUSTOM LEAVE
    messagebox mb_ok "leave end"
  FunctionEnd

!macroend

Thanks for your answer

Afrow UK
27th July 2007 22:16 UTC

You can't call that in the pre function of a page.
You can to call it in a custom page show function:

Page Custom CustomPageShow

Function CustomPageShow
...
FunctionEnd

Stu