// jQuery File Tree Plugin
//
// Version 1.01
//
// Cory S.N. LaViska
// A Beautiful Site (http://abeautifulsite.net/)
// 24 March 2008
//
// Visit http://abeautifulsite.net/notebook.php?article=58 for more information
//
// Usage: $('.fileTreeDemo').fileTree( options, callback )
//
// Options:  root           - root folder to display; default = /
//           script         - location of the serverside AJAX file to use; default = jqueryFileTree.php
//           folderEvent    - event to trigger expand/collapse; default = click
//           expandSpeed    - default = 500 (ms); use -1 for no animation
//           collapseSpeed  - default = 500 (ms); use -1 for no animation
//           expandEasing   - easing function to use on expand (optional)
//           collapseEasing - easing function to use on collapse (optional)
//           multiFolder    - whether or not to limit the browser to one subfolder at a time
//           loadMessage    - Message to display while initial tree loads (can be HTML)
//
// History:
//
// 1.01 - updated to work with foreign characters in directory/file names (12 April 2008)
// 1.00 - released (24 March 2008)
//
// TERMS OF USE
// 
// jQuery File Tree is licensed under a Creative Commons License and is copyrighted (C)2008 by Cory S.N. LaViska.
// For details, visit http://creativecommons.org/licenses/by/3.0/us/
//
if(jQuery) (function($){

	$.extend($.fn, {
		fileTree: function(o, h) {
			// Defaults
		
			if( !o ) var o = {};
			if( o.root == undefined ) o.root = '';
			if( o.script == undefined ) o.script = 'load_tree_data.php';
			if( o.folderEvent == undefined ) o.folderEvent = 'click';
			if( o.expandSpeed == undefined ) o.expandSpeed= 500;
			if( o.collapseSpeed == undefined ) o.collapseSpeed= 500;
			if( o.expandEasing == undefined ) o.expandEasing = null;
			if( o.collapseEasing == undefined ) o.collapseEasing = null;
			if( o.multiFolder == undefined ) o.multiFolder = true;
			if( o.loadMessage == undefined ) o.loadMessage = 'Loading...';
			
			if($(this).text()==o.loadMessage)return false;
			$(this).each( function() {
	
				function showTree(c, t) {
					
				$(c).addClass('wait');


										
					$(".jqueryFileTree.start").remove();
					$.post(o.script, { id: t }, function(data) {
						$(c).find('.start').html('');
						$(c).removeClass('wait').append(data);
						if( o.root == t ) $(c).find('UL:hidden').show(); else $(c).find('UL:hidden').slideDown({ duration: o.expandSpeed, easing: o.expandEasing });
						bindTree(c);

						
					});
				}
				
				function bindTree(t) {

					$(t).find('LI A').bind(o.folderEvent, function() {
						if( $(this).parent().hasClass('directory') ) {
							if( $(this).parent().hasClass('collapsed') ) {
								// Expand
								
									if( !o.multiFolder ) {
									$(this).parent().parent().find('UL').slideUp({ duration: o.collapseSpeed, easing: o.collapseEasing });
									$(this).parent().parent().find('LI.directory').removeClass('expanded').addClass('collapsed');
									$(this).parents().find('UL LI.directory A').removeClass('selected').addClass('unselected');
									$(this).parents().find('UL LI.file A').removeClass('selected').addClass('unselected');
								}
								$(this).parent().find('UL').remove(); // cleanup
//								alert(escape($(this).attr('rel').match( /.*/ )));
								showTree( $(this).parent(), $(this).attr('rel').match( /.*/ ));
								$(this).parent().removeClass('collapsed').addClass('expanded');
								$(this).removeClass('unselected').addClass('selected');
								
							} else {
								// Collapse
								$(this).parent().find('UL').slideUp({ duration: o.collapseSpeed, easing: o.collapseEasing });
								$(this).parent().removeClass('expanded').addClass('collapsed');
                             	$(this).removeClass('unselected').addClass('selected');
								
								
											}
											
//                       $(this).parent().removeClass('visited');
		//   $(this).addClass('visited');
						} else {
							$(this).parents().find('UL LI.directory A').removeClass('selected').addClass('unselected');
							$(this).parents().find('UL LI.file A').removeClass('selected').addClass('unselected');
							$(this).removeClass('unselected').addClass('selected');
							h($(this).attr('rel'));
							
						
							                    
						}
					
						//$(this).addClass('selected');
						return false;
					});
					// Prevent A from triggering the # on non-click events
					if( o.folderEvent.toLowerCase != 'click' ) $(t).find('LI A').bind('click', function() {

								return false;						   
						   
						   
					});
				}
				// Loading message
			
								
				// Get the initial file list

				showTree($(this), escape(o.root) );
				$(this).html('<ul class="jqueryFileTree start"><li class="wait">' + o.loadMessage + '<li></ul>');
				
			});
		}
	});
	
})(jQuery);