Add folder to folderaliases via context menu

Buttons/Scripts
,
1

This script can be used as context menu for folders in the file types dialog to add them directly as folder alias and does some extra logic.

@script jscript
var UseFolderNameAsDefaultAliasName = true;
function OnClick(clickData)
{	
	var source = clickData.func.sourcetab.selected_dirs(0);
	if(!source)
		return;

	var dlg = clickData.func.Dlg;
	var existingAlias = AliasPathExists(source);
	if(existingAlias)
	{
		var result = ShowDialog(dlg, "Alias already exists", "Alias for '" + source + "' exists already as '" + existingAlias + "'", "Add either way|Cancel", "information");
		if(result == "Cancel")
			return;
	}

	var aliasName = "";
	var canContinue = false;
	do
	{
		aliasName = dlg.GetString("Enter alias name for '" + source + "'", GetDefaultAliasName(source), 256, "OK|Cancel", "Enter alias name");
		if(dlg.result == 0)
			return;

		var existingAlias = AliasNameExists(aliasName);
		if(existingAlias)
		{
			if(existingAlias.system)
			{
				ShowDialog(dlg, "Alias already exits", "Alias name '" + aliasName + "' is a system alias and thus cannot be overwritten", "OK", "error");
				return;
			}
			else
			{
				var result = ShowDialog(dlg, "Alias already exits", "Alias name '" + aliasName + "' is already taken", "Overwrite|Change alias name|Cancel", "warning");
				if(result == "Overwrite")
				{
					canContinue = true;
					DOpus.aliases.Delete(aliasName);
				}
				else if(result == "Change alias name")
					canContinue = false;
	
				return;
			}
		}
		else
			canContinue = true;
			
	}
	while(!canContinue);

	DOpus.aliases.Add(aliasName, source);
}

function ShowDialog(dlg, title, msg, buttons, icon)
{
	dlg.title = title || "";
	dlg.message = msg || "";
    dlg.buttons = buttons || "OK";
	dlg.icon = icon || "";

	var result = dlg.Show();
	var buttonValues = buttons.split('|');
	if(buttonValues.length > 1)
		return buttonValues[(result + 1) % buttonValues.length];
	
	return buttons;
}

function AliasPathExists(path)
{
	for (var aliasEnum = new Enumerator(DOpus.aliases); !aliasEnum.atEnd(); aliasEnum.moveNext())
	{
		var alias = aliasEnum.item();
		if(String(alias.path) == String(path))
			return alias;
	}
	return null;
}

function GetDefaultAliasName(path)
{
	if(!UseFolderNameAsDefaultAliasName)
		return "";

	return DOpus.FSUtil.GetItem(path).name;
}

function AliasNameExists(name)
{
	name = String(name).toLowerCase();
	for (var aliasEnum = new Enumerator(DOpus.aliases); !aliasEnum.atEnd(); aliasEnum.moveNext())
	{
		var alias = aliasEnum.item();
		if(String(alias).toLowerCase() == name)
			return alias;
	}
	return null;
}
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