WordPress/wp-includes/js/admin-bar.js

// use jQuery and hoverIntent if loaded
if ( typeof(jQuery) != 'undefined' ) {
	if ( typeof(jQuery.fn.hoverIntent) == 'undefined' )
		(function(a){a.fn.hoverIntent=function(l,j){var m={sensitivity:7,interval:100,timeout:0};m=a.extend(m,j?{over:l,out:j}:l);var o,n,h,d;var e=function(f){o=f.pageX;n=f.pageY};var c=function(g,f){f.hoverIntent_t=clearTimeout(f.hoverIntent_t);if((Math.abs(h-o)+Math.abs(d-n))<m.sensitivity){a(f).unbind("mousemove",e);f.hoverIntent_s=1;return m.over.apply(f,[g])}else{h=o;d=n;f.hoverIntent_t=setTimeout(function(){c(g,f)},m.interval)}};var i=function(g,f){f.hoverIntent_t=clearTimeout(f.hoverIntent_t);f.hoverIntent_s=0;return m.out.apply(f,[g])};var b=function(q){var f=this;var g=(q.type=="mouseover"?q.fromElement:q.toElement)||q.relatedTarget;while(g&&g!=this){try{g=g.parentNode}catch(q){g=this}}if(g==this){if(a.browser.mozilla){if(q.type=="mouseout"){f.mtout=setTimeout(function(){k(q,f)},30)}else{if(f.mtout){f.mtout=clearTimeout(f.mtout)}}}return}else{if(f.mtout){f.mtout=clearTimeout(f.mtout)}k(q,f)}};var k=function(p,f){var g=jQuery.extend({},p);if(f.hoverIntent_t){f.hoverIntent_t=clearTimeout(f.hoverIntent_t)}if(p.type=="mouseover"){h=g.pageX;d=g.pageY;a(f).bind("mousemove",e);if(f.hoverIntent_s!=1){f.hoverIntent_t=setTimeout(function(){c(g,f)},m.interval)}}else{a(f).unbind("mousemove",e);if(f.hoverIntent_s==1){f.hoverIntent_t=setTimeout(function(){i(g,f)},m.timeout)}}};return this.mouseover(b).mouseout(b)}})(jQuery);

	jQuery(document).ready(function($){
		var adminbar = $('#wpadminbar'), refresh;

		refresh = function(i, el){ // force the browser to refresh the tabbing index
			var node = $(el), tab = node.attr('tabindex');
			if ( tab )
				node.attr('tabindex', '0').attr('tabindex', tab);
		};

		adminbar.removeClass('nojq').removeClass('nojs');
		
		if ( 'ontouchstart' in window || /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // touch screen device
			// close any open drop-downs when the click/touch is not on the toolbar
			$(document.body).on('click.wp-mobile-hover', function(e) {
				if ( !$(e.target).closest('#wpadminbar').length )
					adminbar.find('li.menupop.hover').removeClass('hover');
			});

			adminbar.find('li.menupop').on('click.wp-mobile-hover', function(e) {
				var el = $(this);

				if ( !el.hasClass('hover') ) {
					e.preventDefault();
					adminbar.find('li.menupop.hover').removeClass('hover');
					el.addClass('hover');
				}
			});
		} else {
			adminbar.find('li.menupop').hoverIntent({
				over: function(e){
					$(this).addClass('hover');
				},
				out: function(e){
					$(this).removeClass('hover');
				},
				timeout: 180,
				sensitivity: 7,
				interval: 100
			});
		}

		$('#wp-admin-bar-get-shortlink').click(function(e){
			e.preventDefault();
			$(this).addClass('selected').children('.shortlink-input').blur(function(){
				$(this).parents('#wp-admin-bar-get-shortlink').removeClass('selected');
			}).focus().select();
		});

		$('#wpadminbar li.menupop > .ab-item').bind('keydown.adminbar', function(e){
			if ( e.which != 13 )
				return;

			var target = $(e.target), wrap = target.closest('ab-sub-wrapper');

			e.stopPropagation();
			e.preventDefault();

			if ( !wrap.length )
				wrap = $('#wpadminbar .quicklinks');

			wrap.find('.menupop').removeClass('hover');
			target.parent().toggleClass('hover');
			target.siblings('.ab-sub-wrapper').find('.ab-item').each(refresh);
		}).each(refresh);

		$('#wpadminbar .ab-item').bind('keydown.adminbar', function(e){
			if ( e.which != 27 )
				return;

			var target = $(e.target);

			e.stopPropagation();
			e.preventDefault();

			target.closest('.hover').removeClass('hover').children('.ab-item').focus();
			target.siblings('.ab-sub-wrapper').find('.ab-item').each(refresh);
		});

		$('#wpadminbar').click( function(e) {
			if ( e.target.id != 'wpadminbar' && e.target.id != 'wp-admin-bar-top-secondary' )
				return;

			e.preventDefault();
			$('html, body').animate({ scrollTop: 0 }, 'fast');
		});

		// fix focus bug in WebKit
		$('.screen-reader-shortcut').keydown( function(e) {
			if ( 13 != e.which )
				return;

			var id = $(this).attr('href');

			if ( $.browser.webkit && id && id.charAt(0) == '#' ) {
				setTimeout(function () {
					$(id).focus();
				}, 100);
			}
		});
	});
} else {
	(function(d, w) {
		var addEvent = function( obj, type, fn ) {
			if ( obj.addEventListener )
				obj.addEventListener(type, fn, false);
			else if ( obj.attachEvent )
				obj.attachEvent('on' + type, function() { return fn.call(obj, window.event);});
		},

		aB, hc = new RegExp('\\bhover\\b', 'g'), q = [],
		rselected = new RegExp('\\bselected\\b', 'g'),

		/**
		 * Get the timeout ID of the given element
		 */
		getTOID = function(el) {
			var i = q.length;
			while ( i-- ) {
				if ( q[i] && el == q[i][1] )
					return q[i][0];
			}
			return false;
		},

		addHoverClass = function(t) {
			var i, id, inA, hovering, ul, li,
				ancestors = [],
				ancestorLength = 0;

			while ( t && t != aB && t != d ) {
				if ( 'LI' == t.nodeName.toUpperCase() ) {
					ancestors[ ancestors.length ] = t;
					id = getTOID(t);
					if ( id )
						clearTimeout( id );
					t.className = t.className ? ( t.className.replace(hc, '') + ' hover' ) : 'hover';
					hovering = t;
				}
				t = t.parentNode;
			}

			// Remove any selected classes.
			if ( hovering && hovering.parentNode ) {
				ul = hovering.parentNode;
				if ( ul && 'UL' == ul.nodeName.toUpperCase() ) {
					i = ul.childNodes.length;
					while ( i-- ) {
						li = ul.childNodes[i];
						if ( li != hovering )
							li.className = li.className ? li.className.replace( rselected, '' ) : '';
					}
				}
			}

			/* remove the hover class for any objects not in the immediate element's ancestry */
			i = q.length;
			while ( i-- ) {
				inA = false;
				ancestorLength = ancestors.length;
				while( ancestorLength-- ) {
					if ( ancestors[ ancestorLength ] == q[i][1] )
						inA = true;
				}

				if ( ! inA )
					q[i][1].className = q[i][1].className ? q[i][1].className.replace(hc, '') : '';
			}
		},

		removeHoverClass = function(t) {
			while ( t && t != aB && t != d ) {
				if ( 'LI' == t.nodeName.toUpperCase() ) {
					(function(t) {
						var to = setTimeout(function() {
							t.className = t.className ? t.className.replace(hc, '') : '';
						}, 500);
						q[q.length] = [to, t];
					})(t);
				}
				t = t.parentNode;
			}
		},

		clickShortlink = function(e) {
			var i, l, node,
				t = e.target || e.srcElement;

			// Make t the shortlink menu item, or return.
			while ( true ) {
				// Check if we've gone past the shortlink node,
				// or if the user is clicking on the input.
				if ( ! t || t == d || t == aB )
					return;
				// Check if we've found the shortlink node.
				if ( t.id && t.id == 'wp-admin-bar-get-shortlink' )
					break;
				t = t.parentNode;
			}

			// IE doesn't support preventDefault, and does support returnValue
			if ( e.preventDefault )
				e.preventDefault();
			e.returnValue = false;

			if ( -1 == t.className.indexOf('selected') )
				t.className += ' selected';

			for ( i = 0, l = t.childNodes.length; i < l; i++ ) {
				node = t.childNodes[i];
				if ( node.className && -1 != node.className.indexOf('shortlink-input') ) {
					node.focus();
					node.select();
					node.onblur = function() {
						t.className = t.className ? t.className.replace( rselected, '' ) : '';
					};
					break;
				}
			}
			return false;
		},

		scrollToTop = function(t) {
			var distance, speed, step, steps, timer, speed_step;

			// Ensure that the #wpadminbar was the target of the click.
			if ( t.id != 'wpadminbar' && t.id != 'wp-admin-bar-top-secondary' )
				return;

			distance    = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;

			if ( distance < 1 )
				return;

			speed_step = distance > 800 ? 130 : 100;
			speed     = Math.min( 12, Math.round( distance / speed_step ) );
			step      = distance > 800 ? Math.round( distance / 30  ) : Math.round( distance / 20  );
			steps     = [];
			timer     = 0;

			// Animate scrolling to the top of the page by generating steps to
			// the top of the page and shifting to each step at a set interval.
			while ( distance ) {
				distance -= step;
				if ( distance < 0 )
					distance = 0;
				steps.push( distance );

				setTimeout( function() {
					window.scrollTo( 0, steps.shift() );
				}, timer * speed );

				timer++;
			}
		};

		addEvent(w, 'load', function() {
			aB = d.getElementById('wpadminbar');

			if ( d.body && aB ) {
				d.body.appendChild( aB );

				if ( aB.className )
					aB.className = aB.className.replace(/nojs/, '');

				addEvent(aB, 'mouseover', function(e) {
					addHoverClass( e.target || e.srcElement );
				});

				addEvent(aB, 'mouseout', function(e) {
					removeHoverClass( e.target || e.srcElement );
				});

				addEvent(aB, 'click', clickShortlink );

				addEvent(aB, 'click', function(e) {
					scrollToTop( e.target || e.srcElement );
				});
			}

			if ( w.location.hash )
				w.scrollBy(0,-32);
		});
	})(document, window);

}