///////////////////////////////////////////////////////////////////////////////
function OnInit(data){
	data.name = "Command.GUI: GoRefreshKeepSelection";
	data.desc = "Refreshs tab content while keeping and scrolling back to selected items.";
	data.copyright = "tbone in o9/2o14";
	data.version = "0.1";
	data.default_enable = true;

	var cmd = data.AddCommand();
    cmd.name = "GoRefreshKeepSelection";
    cmd.method = "Command_GoRefreshKeepSelection";
    cmd.desc = data.desc;
    cmd.label = "GoRefreshKeepSelection";
	cmd.template = "NOSCROLLTOSELECTION/S,SCROLLTOCHECKED/S,REFRESHCOMMAND/R";
	///////////////////////////////////////////////////////////////////////////
	function ConfigHelper(data){ //v1.0
		this.data=data; this.descriptions=null; this.last=null;
		this.add = function(name, val, description){
			this.data.config[name]=val; this.last=[this.data.config[name],name];
			if (description!=undefined) this.des(description); return this;}
		this.des = function(description){
			if (!(description && DOpus.version.AtLeast("11.6.1"))) return this;
			if (!this.descriptions){ this.descriptions=DOpus.NewMap();
				data.config._descriptions=this.descriptions; }
			this.descriptions(this.last[1])=description; return this;}
		this.val = function(val){
			if (typeof this.last[0]=="object") this.last[0].push_back(val);
			else this.last[0]=val; return this;}
	}//////////////////////////////////////////////////////////////////////////
	var cfg = new ConfigHelper(data);
	cfg.add('DebugOutput',			false).
		des('Enable debug output in the script console.');
	cfg.add('NoScrollToSelection',	false).
		des('Disable automatic scrolling to selected items after the refresh.');
	cfg.add('ScrollToChecked',		false).
		des('Priorizes checked items when scrolling to selected items.');
	cfg.add('RefreshCommand',		"Go REFRESH=source").
		des('The refresh command to run (lookup the docs for "Go REFRESH*" switches and options).');
}
///////////////////////////////////////////////////////////////////////////////
var COMMAND_FAILURE = true;
var COMMAND_SUCCESS = false;
///////////////////////////////////////////////////////////////////////////////
function Command_GoRefreshKeepSelection(data){
	Debug("GoRefreshKeepSelection():");

	var cmd = data.func.command; cmd.ClearFiles();

	var wasCheckboxMode	= data.func.sourcetab.stats.checkbox_mode==true;
	var isCheckboxMode	= wasCheckboxMode;
	var numSelItems		= data.func.sourcetab.stats.selitems;
	var numCheItems		= data.func.sourcetab.stats.checkeditems;

	var scroll = GetParameter(data, "NOSCROLLTOSELECTION",	"NoScrollToSelection", false)==false;
	var prioCB = GetParameter(data, "SCROLLTOCHECKED",	"ScrollToChecked", false);
	var refCMD = GetParameter(data, "REFRESHCOMMAND",	"RefreshCommand", false);

	Debug("    SelItems: " + numSelItems);
	Debug("    CheItems: " + numCheItems);
	Debug("    NOSCROLLTOSELECTION: " + (scroll==false));
	Debug("    SCROLLTOCHECKED    : " + prioCB);

	var itemsSelected = null;
	var itemsChecked = null;

	if (numCheItems || numSelItems){
		if (isCheckboxMode){
			if (numCheItems){
				Debug("    Getting checked items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
				itemsChecked = GetSelectedItems(data);
			}
			if (numSelItems){
				isCheckboxMode = SwitchCheckboxMode( false, data.func);
				Debug("    Getting selected items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
				itemsSelected = GetSelectedItems(data);
			}
		}
		else {
			if (numSelItems){
				Debug("    Getting selected items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
				itemsSelected = GetSelectedItems(data);
			}
			if (numCheItems){
				isCheckboxMode = SwitchCheckboxMode( true, data.func);
				Debug("    Getting checked items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
				itemsChecked = GetSelectedItems(data);
			}
		}
	}

	Debug('    Refreshing ('+refCMD+')..');
	cmd.RunCommand(refCMD);

	isCheckboxMode = (data.func.sourcetab.selstats.checkbox_mode==true);

	if (isCheckboxMode){
		if(numCheItems){
			Debug("    Setting checked items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
			SelectItems(itemsChecked, data, (scroll && (prioCB || numSelItems==0)));
			data.func.sourcetab.Update();
		}
		if(numSelItems){
			isCheckboxMode = SwitchCheckboxMode( false, data.func);
			Debug("    Setting selected items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
			SelectItems(itemsSelected, data, (scroll && (!prioCB || numCheItems==0)));
		}
	} else {
		if(numSelItems){
			Debug("    Setting selected items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
			SelectItems(itemsSelected, data, (scroll && (!prioCB || numCheItems==0)));
			data.func.sourcetab.Update();
		}
		if(numCheItems){
			isCheckboxMode = SwitchCheckboxMode( true, data.func);
			Debug("    Setting checked items in "+(isCheckboxMode ? "CheckboxMode" : "RegularMode"));
			SelectItems(itemsChecked, data, (scroll && (prioCB || numSelItems==0)));
		}
	}

	if (wasCheckboxMode && !isCheckboxMode){
		Debug("    Resetting to checkbox mode");
		isCheckboxMode = SwitchCheckboxMode( true, data.func);
	}

	return COMMAND_SUCCESS;
}
///////////////////////////////////////////////////////////////////////////////
function GetSelectedItems(data){
	if (data.func.sourcetab.selected.count != 0)
		return data.func.sourcetab.selected;
	return null;
}
///////////////////////////////////////////////////////////////////////////////
function Debug(text){
	if (Script.config.DebugOutput) DOpus.Output(text);
}
///////////////////////////////////////////////////////////////////////////////
function SelectItems(items, data, makevisible){
	var cmd = DOpus.NewCommand();
	cmd.SetSourceTab(data.func.sourcetab);
	cmd.ClearFiles();
	cmd.AddFiles(items);
	var cmdLine = 'Select '+(makevisible?'MAKEVISIBLE ':'')+'EXACT FROMSCRIPT';
	Debug("    CMD: " + cmdLine);
	cmd.AddLine(cmdLine);
	cmd.Run();
}
///////////////////////////////////////////////////////////////////////////////
function SwitchCheckboxMode( truefalse, func){
	var targetState = "off";
	if (truefalse) targetState = "on";
	Debug('    Set CheckboxMode='+targetState);
	func.command.RunCommand('Set CheckboxMode='+targetState);
	func.sourcetab.Update();
	return func.sourcetab.stats.checkbox_mode;
}
///////////////////////////////////////////////////////////////////////////////
function GetParameter( data, templateName, configName, defaultValue){
	if (templateName && data.func.args.got_arg[templateName])
		return data.func.args[templateName]
	if (configName && Script.config[configName]!=undefined){
		switch(typeof(Script.config[configName])){
			case "string":
				if(Script.config[configName]!=="")
					return Script.config[configName];
				break;
			case "boolean":
				return Script.config[configName];
		}
	}
	return defaultValue;
}