菜单ul类将顶部展开全宽,当悬停li类时它会触发拖放内容打开。当鼠标仍然处于“ul”状态时,我希望保持最后一次打开的内容不变,并且只有当鼠标完全离开菜单时才会隐藏内容。 jsFiddle设置,blue bg字段是“ul”类,我希望当鼠标仍然存在时,最后一个内容保持打开状态。如何让jquery下拉菜单在悬停li类时打开
http://jsfiddle.net/R7aTq/150/
(function($){
$.fn.naviDropDown = function(options) {
//set up default options
var defaults = {
dropDownClass: 'dropdown', //the class name for your drop down
dropDownWidth: 'auto', //the default width of drop down elements
slideDownEasing: 'easeInOutCirc', //easing method for slideDown
slideUpEasing: 'easeInOutCirc', //easing method for slideUp
slideDownDuration: 500, //easing duration for slideDown
slideUpDuration: 500, //easing duration for slideUp
orientation: 'horizontal' //orientation - either 'horizontal' or 'vertical'
};
var opts = $.extend({}, defaults, options);
return this.each(function() {
var $this = $(this);
$this.find('.'+opts.dropDownClass).css('width', opts.dropDownWidth).css('display', 'none');
var buttonWidth = $this.find('.'+opts.dropDownClass).parent().width() + 'px';
var buttonHeight = $this.find('.'+opts.dropDownClass).parent().height() + 'px';
if(opts.orientation == 'horizontal') {
$this.find('.'+opts.dropDownClass).css('left', '0px').css('top', buttonHeight);
}
if(opts.orientation == 'vertical') {
$this.find('.'+opts.dropDownClass).css('left', buttonWidth).css('top', '0px');
}
$this.find('li').hoverIntent(getDropDown, hideDropDown);
});
function getDropDown(){
activeNav = $(this);
showDropDown();
}
function showDropDown(){
activeNav.find('.'+opts.dropDownClass).slideDown({duration:opts.slideDownDuration, easing:opts.slideDownEasing});
}
function hideDropDown(){
activeNav.find('.'+opts.dropDownClass).slideUp({duration:opts.slideUpDuration, easing:opts.slideUpEasing});//hides the current dropdown
}
};
})(jQuery);
可以完成,但不是微不足道的,不可能发生在这样的局部情况的帮助论坛。必须删除'hoverintent'并重写单个鼠标事件和定时器,并使其跨浏览器兼容。建议亲自动手 – charlietfl