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| /**
* HoverAccordion - jQuery plugin for intuitively opening accordions and menus
* http://berndmatzner.de/jquery/hoveraccordion/
* Copyright (c) 2008 Bernd Matzner
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
* Requires jQuery 1.2.1 or higher
* Version: 0.5.0
*
* Usage:
* $('#YourUnorderedListID').hoverAccordion();
* or
* $('.YourUnorderedListClass').hoverAccordion({
* speed: 'slow',
* activateitem: '1',
* active: 'current',
* header: 'title',
* hover: 'highlight',
* opened: 'arrowdown',
* closed: 'arrowup'
* keepheight: 'true'
* });
*/
(function($){
$.fn.hoverAccordion = function(options){
// Setup options
options = jQuery.extend({
speed: 'fast', // Speed at which the subitems open up - valid options are: slow, normal, fast
activateitem: 'true', // 'true': Automatically activate items with links corresponding to the current page, '2': Activate item #2
active: 'active', // Class name of the initially active element
header: 'header', // Class name for header items
hover: 'hover', // Class name for hover effect
opened: 'opened', // Class name for open header items
closed: 'closed', // Class name for closed header items
keepheight: 'true' // 'true': Set the height of each accordion item to the size of the largest one, 'false': Leave height as is
}, options);
// Current hover status
var thislist = this;
// Current URL
var thisurl = window.location.href;
// Interval for detecting intended element activation
var i = 0;
// Change display status of subitems when hovering
function doHover(obj){
if ($(obj).html() == undefined)
obj = this;
// Change only one display status at a time
if (!thislist.is(':animated')) {
var newelem = $(obj).parent().children('ul');
var oldelem = $(obj).parent().parent().children('li').children('ul:visible');
if (options.keepheight == 'true') {
thisheight = maxheight;
}
else {
thisheight = newelem.height();
}
// Change display status if not already open
if (!newelem.is(':visible')) {
newelem.children().hide();
newelem.animate({
height: thisheight
}, {
step: function(n, fx){
newelem.height(thisheight - n);
},
duration: options.speed
}).children().show();
oldelem.animate({
height: 'hide'
}, {
step: function(n, fx){
newelem.height(thisheight - n);
},
duration: options.speed
}).children().hide();
// Switch classes for headers
oldelem.parent().children('a').addClass(options.closed).removeClass(options.opened);
newelem.parent().children('a').addClass(options.opened).removeClass(options.closed);
}
}
};
var itemNo = 0;
var maxheight = 0;
// Setup initial state and hover events
$(this).children('li').each(function(){
var thisitem = $(this);
itemNo++;
// Set current link to current URL to 'active' and disable anchor links
var thislink = thisitem.children('a');
if (thislink.length > 0) {
// Hover effect for all links
thislink.hover(function(){
$(this).addClass(options.hover);
}, function(){
$(this).removeClass(options.hover);
});
var thishref = thislink.attr('href');
if (thishref == '#') {
// Add a click event if the header does not contain a link
thislink.click(function(){
doHover(this);
this.blur();
return false;
});
}
else
if (options.activateitem == 'true' && thisurl.indexOf(thishref) > 0 && thisurl.length - thisurl.lastIndexOf(thishref) == thishref.length) {
thislink.parent().addClass(options.active);
}
}
var thischild = thisitem.children('ul');
// Initialize subitems
if (thischild.length > 0) {
if (maxheight < thischild.height())
maxheight = thischild.height();
// Change appearance of the header element of the active item
thischild.children('li.' + options.active).parent().parent().children('a').addClass(options.header);
// Bind hover events to all subitems
thislink.hover(function(){
var t = this;
i = setInterval(function(){
doHover(t);
clearInterval(i);
}, 400);
}, function(){
clearInterval(i);
});
// Set current link to current URL to 'active'
if (options.activateitem == 'true') {
thischild.children('li').each(function(){
var m = $(this).children('a').attr('href');
if (m) {
if (thisurl.indexOf(m) > 0 && thisurl.length - thisurl.lastIndexOf(m) == m.length) {
$(this).addClass(options.active).parent().parent().children('a').addClass(options.opened);
}
}
});
}
else
if (parseInt(options.activateitem) == itemNo) {
thisitem.addClass(options.active).children('a').addClass(options.opened);
}
}
// Close all subitems except for those with active items
thischild.not($(this).parent().children('li.' + options.active).children('ul')).not(thischild.children('li.' + options.active).parent()).hide().parent().children('a').addClass(options.closed);
});
return this;
};
})(jQuery); |
