layui.define(['element', 'common'], function(exports) {
	"use strict";

	var modName = 'tab';
	var $ = layui.jquery;
	var element = layui.element;
	var common = layui.common;
	var globalTabIdIndex = 0;
// ReSharper disable once InconsistentNaming
	var Tab = function() {
		this.config = {
			elem: undefined,
			closed: true, //是否包含删除按钮
			autoRefresh: false,
			contextMenu: false
		};
	};
	var elem = {};
	//版本号
	Tab.prototype.v = '0.1.5';
	/**
	 * 参数设置
	 * @param {Object} options
	 */
	Tab.prototype.set = function(options) {
		var that = this;
		$.extend(true, that.config, options);
		return that;
	};
	/**
	 * 初始化
	 */
	Tab.prototype.init = function() {
		var that = this;
		var config = that.config;
		if(typeof(config.elem) !== 'string' && typeof(config.elem) !== 'object') {
			common.throwError('Tab error: elem参数未定义或设置出错，具体设置格式请参考文档API.');
		}
		var $container;
		if(typeof(config.elem) === 'string') {
			$container = $('' + config.elem + '');
		}
		if(typeof(config.elem) === 'object') {
			$container = config.elem;
		}
// ReSharper disable once UsageOfPossiblyUnassignedValue
// ReSharper disable once QualifiedExpressionMaybeNull
		if($container.length === 0) {
			common.throwError('Tab error:找不到elem参数配置的容器，请检查.');
		}
		var filter = $container.attr('lay-filter');
		if(filter === undefined || filter === '') {
			common.throwError('Tab error:请为elem容器设置一个lay-filter过滤器');
		}
		config.elem = $container;
		elem.titleBox = $container.children('ul.layui-tab-title');
		elem.contentBox = $container.children('div.layui-tab-content');
		elem.tabFilter = filter;
		return that;
	};
	/**
	 * 查询tab是否存在，如果存在则返回索引值，不存在返回-1
	 * @param {String} 标题
	 */
	Tab.prototype.exists = function(title) {
		var that = elem.titleBox === undefined ? this.init() : this,
			tabIndex = -1;
		elem.titleBox.find('li').each(function(i) {
			var $cite = $(this).children('cite');
			if($cite.text() === title) {
				tabIndex = i;
			};
		});
		return tabIndex;
	};
	/**
	 * 获取tabid
	 * @param {String} 标题
	 */
	Tab.prototype.getTabId=function(title){
		var that = elem.titleBox === undefined ? this.init() : this,
			tabId = -1;
		elem.titleBox.find('li').each(function() {
			var $cite = $(this).children('cite');
			if($cite.text() === title) {
				tabId = $(this).attr('lay-id');
			};
		});
		return tabId;
	};
	/**
	 * 添加选择卡，如果选择卡存在则获取焦点
	 * @param {Object} data
	 */
	Tab.prototype.tabAdd = function (data) {

		var that = this;
		var config = that.config;
		var tabIndex = that.exists(data.title);
		if(tabIndex === -1) {
			//设置只能同时打开多少个tab选项卡
			if(config.maxSetting !== 'undefined') {
				var currentTabCount = config.elem.children('ul.layui-tab-title').children('li').length;
				if(typeof config.maxSetting === 'number') {
					if(currentTabCount === config.maxSetting) {
						layer.msg('为了系统的流畅度，只能同时打开' + config.maxSetting + '个选项卡。');
						return;
					}
				}
				if(typeof config.maxSetting === 'object') {
					var max = config.maxSetting.max || 8;
					var msg = config.maxSetting.tipMsg || '为了系统的流畅度，只能同时打开' + max + '个选项卡。';
					if(currentTabCount === max) {
						layer.msg(msg);
						return;
					}
				}
			}
			globalTabIdIndex++;
			var content = '<iframe src="' + data.href + '" data-id="' + globalTabIdIndex + '"></iframe>';
			var title = '';
			if(data.icon !== undefined) {
				if(data.icon.indexOf('fa-') !== -1) {
					title += '<i class="fa ' + data.icon + '" aria-hidden="true"></i>';
				} else {
					title += '<i class="layui-icon">' + data.icon + '</i>';
				}
			}
			title += '<cite>' + data.title + '</cite>';
			if(config.closed) {
				title += '<i class="layui-icon layui-unselect layui-tab-close" data-id="' + globalTabIdIndex + '">&#x1006;</i>';
			}
			//添加tab
			console.log(data.href);
			element.tabAdd(elem.tabFilter, {
				title: title,
				content: content,
				id:new Date().getTime()
			});
			//iframe 自适应
			elem.contentBox.find('iframe[data-id=' + globalTabIdIndex + ']').each(function() {
				$(this).height(elem.contentBox.height());
			});
			if(config.closed) {
				//监听关闭事件
				elem.titleBox.find('li').children('i.layui-tab-close[data-id=' + globalTabIdIndex + ']').on('click', function() {
					element.tabDelete(elem.tabFilter, $(this).parent('li').attr('lay-id')).init();
					if(config.contextMenu) {
						$(document).find('div.uiba-contextmenu').remove(); //移除右键菜单dom
					}
				});
			};
			//切换到当前打开的选项卡
			element.tabChange(elem.tabFilter, that.getTabId(data.title));
		} else {
			element.tabChange(elem.tabFilter, that.getTabId(data.title));
			//自动刷新
			if(config.autoRefresh) {
				config.elem.find('div.layui-tab-content > div').eq(tabIndex).children('iframe')[0].contentWindow.location.reload();
			}
		}
		if(config.contextMenu) {
			element.on('tab(' + elem.tabFilter + ')', function() {
				$(document).find('div.admin-contextmenu').remove();
			});
			elem.titleBox.find('li').on('contextmenu', function(e) {
				//var $that = $(e.target);
				e.preventDefault();
				e.stopPropagation();

				var $target = e.target.nodeName === 'LI' ? e.target : e.target.parentElement;
				//判断，如果存在右键菜单的div，则移除，保存页面上只存在一个
				if($(document).find('div.admin-contextmenu').length > 0) {
					$(document).find('div.admin-contextmenu').remove();
				}
				//创建一个div
				var div = document.createElement('div');
				//设置一些属性
				div.className = 'admin-contextmenu';
				div.style.width = '130px';
				div.style.backgroundColor = 'white';

				var ul = '<ul>';
				ul += '<li data-target="refresh" title="刷新当前选项卡"><i class="fa fa-refresh" aria-hidden="true"></i> 刷新</li>';
				ul += '<li data-target="closeCurrent" title="关闭当前选项卡"><i class="fa fa-close" aria-hidden="true"></i> 关闭当前</li>';
				ul += '<li data-target="closeOther" title="关闭其他选项卡"><i class="fa fa-window-close-o" aria-hidden="true"></i> 关闭其他</li>';
				ul += '<li data-target="closeAll" title="关闭全部选项卡"><i class="fa fa-window-close-o" aria-hidden="true"></i> 全部关闭</li>';
				ul += '</ul>';
				div.innerHTML = ul;
				div.style.top = e.pageY + 'px';
				div.style.left = e.pageX + 'px';
				//将dom添加到body的末尾
				document.getElementsByTagName('body')[0].appendChild(div);

				//获取当前点击选项卡的id值
				var id = $($target).find('i.layui-tab-close').data('id');
				//获取当前点击选项卡的索引值
				var clickIndex = $($target).attr('lay-id');
				var $context = $(document).find('div.admin-contextmenu');
				if($context.length > 0) {
					$context.eq(0).children('ul').children('li').each(function() {
						var $that = $(this);
						//绑定菜单的点击事件
						$that.on('click', function() {
							//获取点击的target值
							var target = $that.data('target');
							//
							switch(target) {
								case 'refresh': //刷新当前
									var src = elem.contentBox.find('iframe[data-id=' + id + ']')[0].src;
									elem.contentBox.find('iframe[data-id=' + id + ']')[0].src = src;
									break;
								case 'closeCurrent': //关闭当前
									if(clickIndex !== 0) {
										element.tabDelete(elem.tabFilter, clickIndex);
									}
									break;
								case 'closeOther': //关闭其他
									elem.titleBox.children('li').each(function() {
										var $t = $(this);
										var id1 = $t.find('i.layui-tab-close').data('id');
										if(id1 !== id && id1 !== undefined) {
											element.tabDelete(elem.tabFilter, $t.attr('lay-id'));
										}
									});
									break;
								case 'closeAll': //全部关闭
									elem.titleBox.children('li').each(function() {
										var $t = $(this);
										if($t.index() !== 0) {
											element.tabDelete(elem.tabFilter, $t.attr('lay-id'));
										}
									});
									break;
							}
							//处理完后移除右键菜单的dom
							$context.remove();
						});
					});
					
					$(document).on('click',function(){
						$context.remove();
					});
				}
				return false;
			});
		}
	};
	Tab.prototype.on = function() {

	}

	var tab = new Tab();
	exports(modName, function(options) {
		return tab.set(options);
	});
});