選択したフォルダ内にある画像をサムネイルに設定 (X-Finder用)

SetFolderThumbnail.js

/* 選択したフォルダ内にある画像をサムネイルに設定 (X-Finder用) */

var IMAGE_FILE_EXT = /\.(bmp|gif|jpe?g|png|tif)$/i;	// 検索する画像ファイルの拡張子

function FindImageFile (folderItems, reImageFileName){
    for (var i = 0; i < folderItems.Count; ++i){
	var folderItem = folderItems.Item(i);
	if (!folderItem.IsFolder && folderItem.Name.match(reImageFileName ? reImageFileName : IMAGE_FILE_EXT)){
	    return folderItem;
	}
    }
    for (var i = 0; i < folderItems.Count; ++i){
	var folder = folderItems.Item(i).GetFolder;
	if (folder){
	    return FindImageFile(folder.Items(), reImageFileName);
	}
    }
    return false;
}

var fso = new ActiveXObject("Scripting.FileSystemObject");
function CreateTempFolder (){
    return fso.CreateFolder(fso.GetSpecialFolder(2) + "\\" + fso.GetTempName());
}

var shell = new ActiveXObject("Shell.Application");
function SetFolderThumbnail (vDir, reImageFileName){
    try{
	var imgFile = FindImageFile(shell.NameSpace(vDir).Items(), reImageFileName);
    }catch(e){
	return false;
    }
    if (imgFile){
	var tmpFolder = CreateTempFolder();
	shell.NameSpace(tmpFolder.Path).CopyHere(imgFile);
	WScript.Exec("Thumbnail:"
		     + "\"" + tmpFolder.Path + "\\" + imgFile.Name + "\""
		     + "\"" + vDir + ":thumbnail.jpg\"");
	tmpFolder.Delete();
	return true;
    }else{
	return false;
    }
}

function SetSelectedFolderThumbnail (reImageFileName){
    var selected = WScript.Env("Selected").match(/"[^"]+?"|[^ ]+/g);
    for (var i = 0; i < selected.length; ++i){
	SetFolderThumbnail(selected[i].match(/[^"]+/)[0], reImageFileName);
    }
}