bootstrap的导航改造

/*

* Project: Twitter Bootstrap Hover Dropdown

* Author: Cameron Spear

* Contributors: Mattia Larentis

*

* Dependencies?: Twitter Bootstrap's Dropdown plugin

*

* A simple plugin to enable twitter bootstrap dropdowns to active on hover and provide a nice user experience.

*

* No license, do what you want. I'd love credit or a shoutout, though.

*

* http://cameronspear.com/blog/twitter-bootstrap-dropdown-on-hover-plugin/

*/

;(function($, window, undefined) {

// outside the scope of the jQuery plugin to

// keep track of all dropdowns

var$allDropdowns = $();

// if instantlyCloseOthers is true, then it will instantly

// shut other nav items when a new one is hovered over

$.fn.dropdownHover =function(options) {

// the element we really care about

// is the dropdown-toggle's parent

$allDropdowns = $allDropdowns.add(this.parent());

returnthis.each(function() {

var$this= $(this).parent(),

defaults = {

delay: 500,

instantlyCloseOthers:true

},

data = {

delay: $(this).data('delay'),

instantlyCloseOthers: $(this).data('close-others')

},

options = $.extend(true, {}, defaults, options, data),

timeout;

$this.hover(function() {

if(options.instantlyCloseOthers === true)

$allDropdowns.removeClass('open');

window.clearTimeout(timeout);

$(this).addClass('open');

}, function() {

timeout = window.setTimeout(function() {

$this.removeClass('open');

}, options.delay);

});

});

};

$('[data-hover="dropdown"]').dropdownHover();

})(jQuery,this);