宏:用nsDialogs实现目录选择框

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2023-12-01
好多例子使用InstallOptions.nsh来实现目录选择框。用nsDialogs实现需要写一段代码。

从http://forums.winamp.com/showthread.php?postid=2263591 可以找到一个老外写的例子。但是它用了临时文件记录信息,不是很好用。我修改了一下。见附件。包括一个宏和一个例子。具体使用方法如下:

;在脚本开头要先引用如下插件
;;;;;;;;;;;;;;;;;;;;;;;;;
!include LogicLib.nsh
!include nsDialogs.nsh
!include dirrequest.nsh
;;;;;;;;;;;;;;;;;;;;;;;;;
;宏使用格式:${MyCreateDirRequest} "_Dirx" "_Diry" "_Dirwidth" "_Buttonx" "_Buttonwidth" "_Height" "_Dirtext" "_Buttontext" "_Title" "_Suffix"
;_Dirx是路径名显示框的x坐标,_Diry 显示框y坐标;_Dirwidth宽度;
;_Buttonx目录选择按钮x坐标,_Buttonwidth目录按钮宽度;_height目录显示框高度;
;_Dirtext默认显示路径;_Buttontext 按钮显示文字;
;_Title目录选择窗口标题;_suffix是选择目录后自动添加的后缀(子目录),后缀名可以不加,这样选择目录是什么就是什么。
;共10个参数。


引用Dirrequest.nsh的内容:

;这是用nsDialogs产生目录选择框的宏。
;使用方法:
;在脚本开头要先引用如下插件
;;;;;;;;;;;;;;;;;;;;;;;;;
;!include LogicLib.nsh
;!include nsDialogs.nsh
;!include dirrequest.nsh
;;;;;;;;;;;;;;;;;;;;;;;;;
;宏使用格式:${MyCreateDirRequest} "_Dirx" "_Diry" "_Dirwidth" "_Buttonx" "_Buttonwidth" "_Height" "_Dirtext" "_Buttontext" "_Title" "_Suffix"
;_Dirx是路径名显示框的x坐标,_Diry 显示框y坐标;_Dirwidth宽度;
;_Buttonx目录选择按钮x坐标,_Buttonwidth目录按钮宽度;_height目录显示框高度;
;_Dirtext默认显示路径;_Buttontext 按钮显示文字;
;_Title目录选择窗口标题;_suffix是选择目录后自动添加的后缀(子目录),后缀名可以不加,这样选择目录是什么就是什么。
;共10个参数;
;By liangzi@ustc 200905

Function MyDirHandler
	# R0 button
	# R1 text box
	# R2 current path
	# R3 suffix
	# R4 title
	
	# Recover the current path
		Pop $R0
	# Recover the DriRequest associated with this button
	nsDialogs::GetUserData /NOUNLOAD $R0
	Pop $R1
	${NSD_GetText} $R1 $R2
		# Recover the suffix
	ReadINIStr $R3 '$TEMP\$R1.ini' STR:$R0 'suffix'
	ReadINIStr $R4 '$TEMP\$R1.ini' STR:$R0 'title'
	# Since the suffix directory may not exists, remove it from the path to be
	# passed to the SelectFolderDialog
	StrLen $R5 $R2 ; length of all path
	StrLen $R6 $R3 ; length of suffix
	IntOp  $R5 $R5 - $R6
	StrCpy $R6 $R2 $R6 $R5 ; Recover the last n chars of the path, where n is strlen(suffix)
	${If} $R6 == $R3 ; if the suffix is the last component of the path, remove it
		StrCpy $R2 $R2 $R5 0 
	${EndIf}
	nsDialogs::SelectFolderDialog /NOUNLOAD $R4 $R2
	Pop $R5
	${If} $R5 != error
		; When C: is selected, for example, a \ will be present at the end of the
		; path. When a directory is selected this won't happen. Verify if there is 
		; a \ at the end of the path
		StrLen $R6 $R5
		IntOp $R6 $R6 - 1
		StrCpy $R6 $R5 1 $R6 ; Get the last char
		${If} $R6 == '\'
			StrCpy $R5 '$R5$R3'
		${Else}
			StrCpy $R5 '$R5\$R3'
		${EndIf}
		; set the path in the text box
		SendMessage $R1 ${WM_SETTEXT} 0 STR:$R5

	${EndIf}

FunctionEnd

;_Dirx是路径名显示框的x坐标,_Diry 显示框y坐标;_Dirwidth宽度;
;_Buttonx目录选择按钮x坐标,_Buttonwidth目录按钮宽度;_height目录显示框高度;
;_Dirtext默认显示路径;_Buttontext 按钮显示文字;_Title目录选择窗口标题;_suffix是选择目录自动添加的后缀;
!macro MyCreateDirRequest _Dirx _Diry _Dirwidth _Buttonx _Buttonwidth _Height _Dirtext _Buttontext _Title _Suffix
        ${NSD_CreateButton} "${_Buttonx}" "${_Diry}" "${_Buttonwidth}" "${_Height}" "${_Buttontext}"
	Pop $R0
	${If} "${_Dirtext}" == ""
               StrCpy $1 "Choose a directory"
        ${Else}
               StrCpy $1 "${_Dirtext}"
        ${EndIf}

	${NSD_CreateDirRequest} "${_Dirx}" "${_Diry}" "${_Dirwidth}" "${_Height}" $1
	Pop $R1
	
	nsDialogs::SetUserData /NOUNLOAD $R0 $R1
	Delete "$TEMP\$R1.ini"
	WriteINIStr '$TEMP\$R1.ini' STR:$R0 'title' '${_Title}'
	WriteINIStr '$TEMP\$R1.ini' STR:$R0 'suffix' '${_Suffix}'

;调用MyDirHandler函数时会返回$R0到堆栈
	${NSD_OnClick} $R0 MyDirHandler 

	Push $R1 ; Return the DirRequest
!macroend
!define MyCreateDirRequest '!insertmacro MyCreateDirRequest'

引用example.nsi的内容:

!include LogicLib.nsh
!include nsDialogs.nsh
!include dirrequest.nsh

Name nsDialogs
OutFile dirrequest.exe

XPStyle on

Var Dialog
Var MyDir
Var MyDir2

Page custom nsDialogsPage nsDialogsPageLeave
Page instfiles



Section
	DetailPrint "hello world,$Mydir"

SectionEnd

Function nsDialogsPage

	nsDialogs::Create /NOUNLOAD 1018
	Pop $Dialog

	${If} $Dialog == error
		Abort
	${EndIf}

;宏使用格式:${MyCreateDirRequest} "_Dirx" "_Diry" "_Dirwidth" "_Buttonx" "_Buttonwidth" "_Height" "_Dirtext" "_Buttontext" "_Title" "_Suffix"
;_Dirx是路径名显示框的x坐标,_Diry 显示框y坐标;_Dirwidth宽度;
;_Buttonx目录选择按钮x坐标,_Buttonwidth目录按钮宽度;_height目录显示框高度;
;_Dirtext默认显示路径;_Buttontext 按钮显示文字;
;_Title目录选择窗口标题;_suffix是选择目录后自动添加的后缀(子目录),后缀名可以不加,这样选择目录是什么就是什么。
;共10个参数;
${MyCreateDirRequest} 0 25% 93% 95% 5% 12u "c:\test" "..." "Title test" "suffix"
Pop $MyDir

${MyCreateDirRequest} 0 50% 93% 95% 5% 12u "c:\test2" "..." "Title test2" "suffix2"
Pop $MyDir2

	nsDialogs::Show
FunctionEnd
Function nsDialogsPageLeave
		${NSD_GetText} $MyDir $R2
		Delete "$TEMP\$MyDir.ini" ;删除临时文件
		StrCpy $MyDir "$R2"
		MessageBox MB_OK "MyDir1= $R2"

                ${NSD_GetText} $MyDir2 $R1
        	Delete "$TEMP\$MyDir2.ini"
		StrCpy $MyDir2 "$R1"
		MessageBox MB_OK "MyDir2= $R1"
FunctionEnd