// Autosave layouts after folder change, tab or lister closing
// (c) 2023 Ken

// This is a script for Directory Opus.
// See https://www.gpsoft.com.au/DScripts/redirect.asp?page=scripts for development information.



// Called by Directory Opus to initialize the script
function OnInit(initData)
{
	initData.name = "Autosave-Layouts";
	initData.version = "1.4.1";
	initData.copyright = "(c) 2023 Ken";
	initData.url = "https://resource.dopus.com/t/automatically-save-layouts-after-folder-changes-or-when-tab-are-closed/45033";
	initData.desc = "Autosave layouts after folder change, tab or lister closing, save the second layout after 10 changes, and save the third layout after 50 changes.";
	initData.default_enable = true;
	initData.min_version = "12.0";
}



// Called when Directory Opus starts up
function OnStartup(startupData)
{
    Script.vars.Set('fdrChangeNotCount') = 1;   // Avoid triggering count when starting Opus
	DOpus.Delay(30000);
	Script.vars.Delete('fdrChangeNotCount');
}

// Called after a new folder is read in a tab
function OnAfterFolderChange(afterFolderChangeData)
{
    Autosave()
}

// Called when a tab is closed
function OnCloseTab(closeTabData)
{
    Autosave()
}

// Called when a Lister is closed
function OnCloseLister(closeListerData)
{
    Autosave()
}

function Autosave() {
    if (Script.vars.Exists('fdrChangeNotCount'))   // Avoid triggering count when starting Opus
	    return

    var cmd = DOpus.Create().Command;
    if (Script.vars.Exists('folderChangeCount')) {
	    var folderChangeCount = Script.vars.Get('folderChangeCount');
		switch (folderChangeCount) {
	        case 10:
      		   cmd.RunCommand('Prefs LAYOUTNAME="Autosaved-Layout2" LAYOUTSAVE');
			   Script.vars.Set('folderChangeCount') = folderChangeCount+1;
			   break
		    case 50:
      		   cmd.RunCommand('Prefs LAYOUTNAME="Autosaved-Layout3" LAYOUTSAVE');
			   Script.vars.Set('folderChangeCount') = 0;
			   break
		    default:
			   cmd.RunCommand('Prefs LAYOUTNAME="Autosaved-Layout" LAYOUTSAVE');
		       Script.vars.Set('folderChangeCount') = folderChangeCount+1;
			   if (folderChangeCount > 50)
			      Script.vars.Set('folderChangeCount') = 1;
		}
    } else
		Script.vars.Set('folderChangeCount') = 1;
}