function OnInit(initData)
{
	initData.name = "SortTabs";
	initData.version = "1.0";
	initData.copyright = "(c) 2017 Leo Davidson";
	initData.url = "https://resource.dopus.com/t/sort-folder-tabs-on-demand-or-when-listers-open/26890";
	initData.desc = "When a new lister opens, alphabetically sort its folder tabs by label.";
	initData.default_enable = true;
	initData.min_version = "12.6.2";
}

// Called when a new Lister is opened
function OnOpenLister(openListerData)
{
	if (!openListerData.after)
	{
		// The tabs aren't open yet. Ask to be called again when they are.
		return true;
	}

	var cmd = DOpus.Create.Command();
	cmd.SetSourceTab(openListerData.lister.activetab);
	sortTabs(cmd, openListerData.lister.tabsleft);
	sortTabs(cmd, openListerData.lister.tabsright);

	return false; // Don't call us again for this lister.
}

function sortTabs(cmd, tabList)
{
	var setLabels = DOpus.Create.StringSet();
	var mapLabelToTabVec = DOpus.Create.Map();

	for (var eTabs = new Enumerator(tabList); !eTabs.atEnd(); eTabs.moveNext())
	{
		var tab = eTabs.item();
		var label = tab.displayed_label.toLowerCase();

		setLabels.insert(label);

		if (!mapLabelToTabVec.exists(label))
		{
			mapLabelToTabVec(label) = DOpus.Create.Vector();
		}
		mapLabelToTabVec(label).push_back(tab);
	}

	var vecLabels = DOpus.Create.Vector();

	for (var eLabels = new Enumerator(setLabels); !eLabels.atEnd(); eLabels.moveNext())
	{
		vecLabels.push_back(eLabels.item());
	}
	vecLabels.sort();

	cmd.Clear();
	var tabPos = 0;

	for (var eLabels = new Enumerator(vecLabels); !eLabels.atEnd(); eLabels.moveNext())
	{
		var vecTabs = mapLabelToTabVec(eLabels.item());
		for (var eTabs = new Enumerator(vecTabs); !eTabs.atEnd(); eTabs.moveNext())
		{
			var tab = eTabs.item();
			cmd.AddLine("Go TABPOS=" + tabPos + "," + tab);
			++tabPos;
		}
	}

	if (tabPos > 1)
	{
		cmd.Run();
	}
}