/*
	Zotero
	Copyright (C) 2006   Center for History and New Media, George Mason University, Fairfax, VA
	http://chnm.gmu.edu/
*/

var itemsView;
var collectionsView;
var io;

/*
 * window takes two arguments:
 * io - used for input/output (dataOut is list of item IDs)
 * sourcesOnly - whether only sources should be shown in the window
 */
function doLoad()
{
	io = window.arguments[0];
	
	collectionsView = new Scholar.CollectionTreeView();
	document.getElementById('collections-tree').view = collectionsView;

	// move to center of screen
	window.sizeToContent();
	window.moveTo(
		(self.screen.width-window.innerWidth)/2,
		(self.screen.height-window.innerHeight)/2
	);
}

function doUnload()
{
	collectionsView.unregister();
	if(itemsView)
		itemsView.unregister();
}

function onCollectionSelected()
{
	if(itemsView)
		itemsView.unregister();

	if(collectionsView.selection.count == 1 && collectionsView.selection.currentIndex != -1)
	{
		var collection = collectionsView._getItemAtRow(collectionsView.selection.currentIndex);
		collection.setSearch('');

		itemsView = new Scholar.ItemTreeView(collection, (window.arguments[1] ? true : false));
		document.getElementById('items-tree').view = itemsView;
	}

}

function onSearch()
{
	if(itemsView)
	{
		var searchVal = document.getElementById('tb-search').value;
		itemsView.searchText(searchVal);
		
		document.getElementById('tb-search-cancel').hidden = searchVal == "";
	}
}

function onItemSelected()
{
	
}

function getSelectedItems(byID) {
	var start = new Object();
	var end = new Object();
	var returnArray = new Array();
	
	for(var i = 0, rangeCount = itemsView.selection.getRangeCount(); i < rangeCount; i++)
	{
		itemsView.selection.getRangeAt(i,start,end);
		for(var j = start.value; j <= end.value; j++)
		{
			if(byID) {
				returnArray.push(itemsView._getItemAtRow(j).ref.getID());
			} else {
				returnArray.push(itemsView._getItemAtRow(j).ref);
			}
		}
	}
	
	return returnArray;
}

function doAccept()
{
	io.dataOut = getSelectedItems(true);
}