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/*! UIkit 2.21.0 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
(function(UI) {
"use strict";
UI.component('nav', {
defaults: {
"toggle": ">li.uk-parent > a[href='#']",
"lists": ">li.uk-parent > ul",
"multiple": false
},
boot: function() {
// init code
UI.ready(function(context) {
UI.$("[data-uk-nav]", context).each(function() {
var nav = UI.$(this);
if (!nav.data("nav")) {
var obj = UI.nav(nav, UI.Utils.options(nav.attr("data-uk-nav")));
}
});
});
},
init: function() {
var $this = this;
this.on("click.uikit.nav", this.options.toggle, function(e) {
e.preventDefault();
var ele = UI.$(this);
$this.open(ele.parent()[0] == $this.element[0] ? ele : ele.parent("li"));
});
this.find(this.options.lists).each(function() {
var $ele = UI.$(this),
parent = $ele.parent(),
active = parent.hasClass("uk-active");
$ele.wrap('<div style="overflow:hidden;height:0;position:relative;"></div>');
parent.data("list-container", $ele.parent()[active ? 'removeClass':'addClass']('uk-hidden'));
// Init ARIA
parent.attr('aria-expanded', parent.hasClass("uk-open"));
if (active) $this.open(parent, true);
});
},
open: function(li, noanimation) {
var $this = this, element = this.element, $li = UI.$(li), $container = $li.data('list-container');
if (!this.options.multiple) {
element.children('.uk-open').not(li).each(function() {
var ele = UI.$(this);
if (ele.data('list-container')) {
ele.data('list-container').stop().animate({height: 0}, function() {
UI.$(this).parent().removeClass('uk-open').end().addClass('uk-hidden');
});
}
});
}
$li.toggleClass('uk-open');
// Update ARIA
$li.attr('aria-expanded', $li.hasClass('uk-open'));
if ($container) {
if ($li.hasClass('uk-open')) {
$container.removeClass('uk-hidden');
}
if (noanimation) {
$container.stop().height($li.hasClass('uk-open') ? 'auto' : 0);
if (!$li.hasClass('uk-open')) {
$container.addClass('uk-hidden');
}
this.trigger('display.uk.check');
} else {
$container.stop().animate({
height: ($li.hasClass('uk-open') ? getHeight($container.find('ul:first')) : 0)
}, function() {
if (!$li.hasClass('uk-open')) {
$container.addClass('uk-hidden');
} else {
$container.css('height', '');
}
$this.trigger('display.uk.check');
});
}
}
}
});
// helper
function getHeight(ele) {
var $ele = UI.$(ele), height = "auto";
if ($ele.is(":visible")) {
height = $ele.outerHeight();
} else {
var tmp = {
position: $ele.css("position"),
visibility: $ele.css("visibility"),
display: $ele.css("display")
};
height = $ele.css({position: 'absolute', visibility: 'hidden', display: 'block'}).outerHeight();
$ele.css(tmp); // reset element
}
return height;
}
})(UIkit);
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