/**
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* UI v1.1.0
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* Copyright 2017-2018 Muyao
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* Licensed under the Muyao License 1.0
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*/
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(function (window, document, $) {
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'use strict';
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/***
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* 左侧菜单相关事件功能（默认为折叠效果）
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*
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* 提供了多个可触发事件：
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* deactive.site.menu : 取消菜单选中项
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* active.site.menu : 设置菜单选中项
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* open.site.menu : 展开子菜单
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* close.site.menu : 收起子菜单
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*
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* 可自定义事件：
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* expanded.site.menu : 子菜单展开后动作
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* collapsed.site.menu : 子菜单收起后动作
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* **/
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$.site.menu = {
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speed: 250,
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accordion: true, // 手风琴效果标识
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init: function () {
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var $siteMenubar = this.$siteMenubar = $('#admui-navTabs .site-menu');
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if (!$siteMenubar.length) {
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return;
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}
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this._bind();
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},
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_bind: function () {
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var self = this,
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$body = $('body'),
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$siteMenubar = this.$siteMenubar;
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$siteMenubar
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.on('mouseenter.site.menu', '.site-menu-item', function () {
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var $item = $(this),
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folded = $body.hasClass('site-menubar-fold');
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if (folded === true && $item.is('.has-sub') && $item.parent('.site-menu').length) {
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self.position($item, $item.children('.site-menu-sub'));
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}
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$item.addClass('hover');
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})
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.on('mouseleave.site.menu', '.site-menu-item', function () {
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var $item = $(this),
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folded = $body.hasClass('site-menubar-fold');
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if (folded === true && $item.is('.has-sub') && $item.parent('.site-menu').length) {
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$item.children('.site-menu-sub').css("max-height", "");
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}
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$item.removeClass('hover');
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})
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.on('deactive.site.menu', '.site-menu-item.active', function () {
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$(this).removeClass('active');
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})
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.on('active.site.menu', '.site-menu-item', function () {
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$(this).addClass('active');
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})
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.on('open.site.menu', '.site-menu-item', function (e) {
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var $item = $(this);
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self._expand($item, function () {
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$item.addClass('open');
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});
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if (self.accordion && $item.closest('li.has-sub').length <= 1) {
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$item.siblings('.open').trigger('close.site.menu');
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}
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e.stopPropagation();
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})
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.on('close.site.menu', '.site-menu-item.open', function (e) {
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var $item = $(this);
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self._collapse($item, function () {
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$item.removeClass('open');
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});
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e.stopPropagation();
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})
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.on('click.site.menu ', '.site-menu-item > a', function () {
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var $item = $(this),
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$parent = $item.parent();
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if ($parent.is('.has-sub')) {
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if ($parent.is('.open')) {
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$parent.trigger('close.site.menu');
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} else {
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$parent.trigger('open.site.menu');
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}
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} else {
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$item.closest('li').siblings('.open').trigger('close.site.menu');
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$item.closest('li.has-sub').siblings('.open').trigger('close.site.menu');
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$item.parents('div.tab-pane').siblings().find('li.open').trigger('close.site.menu');
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$siteMenubar.find('li.active').trigger('deactive.site.menu');
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$parent.trigger('active.site.menu');
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}
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})
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//.on('tap.site.menu', '> .site-menu-item > a', function () { // 左侧菜单在移动设备下事件操作
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/*var link = $(this).attr('href');
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if (link) {
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window.location = link;
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}*/
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// })
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.on('touchend.site.menu', '> .site-menu-item > a', function () {
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var $item = $(this).parent('.site-menu-item'),
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folded = $body.hasClass('site-menubar-fold');
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if (!folded) {
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return;
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}
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if ($item.is('.has-sub') && $item.parent('.site-menu').length) {
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$item.siblings('.hover').removeClass('hover');
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if ($item.is('.hover')) {
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$item.removeClass('hover');
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} else {
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$item.addClass('hover');
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}
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}
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})
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.on('scroll.site.menu', '.site-menu-sub', function (e) {
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e.stopPropagation();
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});
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},
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_collapse: function ($item, callback) { // 子菜单的收起动作
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var self = this;
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$item.children('.site-menu-sub').slideUp(self.speed, function () {
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if (callback) {
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callback();
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}
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// 触发该元素上绑定的'collapsed.site.menu'事件
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self.$siteMenubar.trigger('collapsed.site.menu');
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});
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},
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_expand: function ($item, callback) { // 子菜单的展开动作
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var self = this;
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$item.children('.site-menu-sub').slideDown(self.speed, function () {
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if (callback) {
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callback();
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}
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// 触发该元素上绑定的'expanded.site.menu'事件
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self.$siteMenubar.trigger('expanded.site.menu');
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});
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},
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refresh: function () { // 重置左侧菜单状态
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var $siteMenubar = this.$siteMenubar;
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$siteMenubar.find('li.open').trigger('close.site.menu');
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$siteMenubar.find('li.active').trigger('deactive.site.menu');
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},
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position: function ($item, $dropdown) { // 窗口 | 在小屏幕设备上，左侧系统菜单的下拉列表的位置操作功能
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var offsetTop = $item.position().top,
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menubarHeight = $("#admui-navTabs").outerHeight(),
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itemHeight = $item.find("> a").outerHeight();
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$dropdown.removeClass('site-menu-sub-up').css('max-height', "");
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if (offsetTop > menubarHeight / 2) {
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$dropdown.addClass('site-menu-sub-up');
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if ($.site.menubar.foldAlt) {
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offsetTop = offsetTop - itemHeight;
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}
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$dropdown.css('max-height', offsetTop + itemHeight);
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} else {
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if ($.site.menubar.foldAlt) {
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offsetTop = offsetTop + itemHeight;
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}
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$dropdown.removeClass('site-menu-sub-up');
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$dropdown.css('max-height', menubarHeight - offsetTop);
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}
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}
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};
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})(window, document, jQuery);
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