/*
 * jdMenu 1.4.1 (2008-03-31)
 *
 * Copyright (c) 2006,2007 Jonathan Sharp (http://jdsharp.us)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://jdsharp.u/s
 *
 * Built upon jQuery 1.2.1 (http://jquery.com)
 * This also requires the jQuery dimensions >= 1.2 plugin
 */

// This initializes the menu
$(function() {
	//$('ul.jd_menu').menu2();
});


(function($){
	function addEvents(ul) {
		var settings = $.data( $(ul).parents().andSelf().filter('ul.jd_menu')[0], 'jdMenuSettings' );
		$('> li', ul)
				.bind('mouseenter.jdmenu mouseleave.jdmenu', function(evt) {
			$(this).toggleClass('jdm_hover');
			var ul = $('> ul', this);
			if ( ul.length == 1 ) {
				clearTimeout( this.$jdTimer );
				var enter = ( evt.type == 'mouseenter' );
				var fn = ( enter ? showMenu : hideMenu );
				this.$jdTimer = setTimeout(function() {
					fn( ul[0], settings.onAnimate, settings.isVertical );
				}, enter ? settings.showDelay : settings.hideDelay );
			}
		})
				.bind('click.jdmenu', function(evt) {
			var ul = $('> ul', this);
			if ( ul.length == 1 && 
				  ( settings.disableLinks == true || $(this).hasClass('accessible') ) ) {
				showMenu( ul, settings.onAnimate, settings.isVertical );
				return false;
			}

				// The user clicked the li and we need to trigger a click for the a
			if ( evt.target == this ) {
				var link = $('> a', evt.target).not('.accessible');
				if ( link.length > 0 ) {
					var a = link[0];
					if ( !a.onclick ) {
						window.open( a.href, a.target || '_self' );
					} else {
						$(a).trigger('click');
					}
				}
			}
			if ( settings.disableLinks || 
				  ( !settings.disableLinks && !$(this).parent().hasClass('jd_menu') ) ) {
				$(this).parent().jdMenuHide();
				evt.stopPropagation();
			}
		})
				.find('> a')
				.bind('focus.jdmenu blur.jdmenu', function(evt) {
			var p = $(this).parents('li:eq(0)');
			if ( evt.type == 'focus' ) {
				p.addClass('jdm_hover');
			} else { 
				p.removeClass('jdm_hover');
			}
		})
				.filter('.accessible')
				.bind('click.jdmenu', function(evt) {
			evt.preventDefault();
		});
	}

	function showMenu(ul, animate, vertical) {
		var ul = $(ul);
		if ( ul.is(':visible') ) {
			return;
		}
		ul.bgiframe();
		var li = ul.parent();
		ul	.trigger('jdMenuShow')
				.positionBy({ 	target: 	li[0], 
targetPos: 	( vertical === true || !li.parent().hasClass('jd_menu') ? 1 : 3 ), 
elementPos: 0,
hideAfterPosition: true
		});
		if ( !ul.hasClass('jdm_events') ) {
			ul.addClass('jdm_events');
			addEvents(ul);
		}
		li	.addClass('jdm_active')
			// Hide any adjacent menus
				.siblings('li').find('> ul:eq(0):visible')
				.each(function(){
			hideMenu( this ); 
		});
		if ( animate === undefined ) {
			ul.show();
		} else {
			animate.apply( ul[0], [true] );
		}
	}

	function hideMenu(ul, animate) {
		var ul = $(ul);
		$('.bgiframe', ul).remove();
		ul	.filter(':not(.jd_menu)')
				.find('> li > ul:eq(0):visible')
				.each(function() {
			hideMenu( this );
		})
				.end();
		if ( animate === undefined ) {
			ul.hide()
		} else {
			animate.apply( ul[0], [false] );
		}

			ul	.trigger('jdMenuHide')
					.parents('li:eq(0)')
					.removeClass('jdm_active jdm_hover')
					.end()
					.find('> li')
					.removeClass('jdm_active jdm_hover');
	}

	// Public methods
	$.fn.jdMenu = function(settings) {
		// Future settings: activateDelay
		var settings = $.extend({	// Time in ms before menu shows
showDelay: 		200,
									// Time in ms before menu hides
hideDelay: 		500,
									// Should items that contain submenus not 
									// respond to clicks
disableLinks:	true
									// This callback allows for you to animate menus
									//onAnimate:	null
		}, settings);
		if ( !$.isFunction( settings.onAnimate ) ) {
			settings.onAnimate = undefined;
		}
		return this.filter('ul.jd_menu').each(function() {
			$.data(	this, 
						'jdMenuSettings', 
						$.extend({ isVertical: $(this).hasClass('jd_menu_vertical') }, settings) 
					);
			addEvents(this);
		});
	};


	
	$.fn.jdMenuUnbind = function() {
		$('ul.jdm_events', this)
				.unbind('.jdmenu')
				.find('> a').unbind('.jdmenu');
	};
	$.fn.jdMenuHide = function() {
		return this.filter('ul').each(function(){ 
			hideMenu( this );
		});
	};


	// Public methods
	$.jdMenu = function(settings) {
		// Future settings: activateDelay
		var settings = $.extend({	// Time in ms before menu shows
showDelay: 		200,
									// Time in ms before menu hides
hideDelay: 		500,
									// Should items that contain submenus not 
									// respond to clicks
disableLinks:	true
									// This callback allows for you to animate menus
									//onAnimate:	null
		}, settings);
		if ( !$.isFunction( settings.onAnimate ) ) {
			settings.onAnimate = undefined;
		}
		return this.filter('ul.jd_menu').each(function() {
			$.data(	this, 
					'jdMenuSettings', 
					$.extend({ isVertical: $(this).hasClass('jd_menu_vertical') }, settings) 
				  );
			addEvents(this);
		});
	};
	
	// Private methods and logic
	$(window)
		// Bind a click event to hide all visible menus when the document is clicked
			.bind('click.jdmenu', function(){
		$('ul.jd_menu ul:visible').jdMenuHide();
	});

	jQuery.fn.menu2 = function() {
		return this.each(function(){
			alert(this);
		});
	};

	
})(jQuery);