/**

 * weefloat.js

 * @category   javascript

 * @package    jquery

 * @author     ePim <WanJiDong@gmail.com>

 * @version    

 */ 

(function($) {

	var weefloat = function(content,options) {

		var self 		= this;

		this.dh 		= null;

		this.closeable 	= true;

		this.delay 		= 3;

		this.direction	= 'full';

		this.options 	= null;

		this._content 	= content || '';

		this._options 	= options || {};

		this._defaults 	= {

			boxid: null,

			width: 0,

			height: 0,

			timeout: 0,

			focus: null,

			blur: null,

			contentType: 'text',

			zIndex: 998,

			onclose: null

		};

		//初始化选项

		this.initOptions = function() {

			self._options = self._options || {};

			self._options.contentType = self._options.contentType || "";

			if (self._options.contentType == "") {

				self._options.contentType = (self._content.substr(0,1) == '#') ? 'selector' : 'text';

			}

			self.options  = $.extend({}, self._defaults, self._options);

			self._options = null;

			self._defaults = null;

		};

		//初始化弹窗Box

		this.initBox = function() {

			html =  '<div class="weefloat">' +

					'	<div class="dialog-content"></div>' +

					'	<div class="dialog-close"></div>' +

					'</div>';

			self.dh = $(html).appendTo('body').hide().css({

				position: 'absolute',	

				overflow: 'hidden',

				zIndex: self.options.zIndex

			});

			if (self.options.boxid) {

				self.dh.attr('id', self.options.boxid);

			}

			if (self.options.height>0) {

				self.dh.css('height', self.options.height);

			}

			if (self.options.width>0) {

				self.dh.css('width', self.options.width);

			}

			self.dh.bgiframe();

		}

		//初始化弹窗内容

		this.initContent = function(content) {						

			if (self.options.contentType == "selector") {

				self.selector = self._content;

				self._content = $(self.selector).html();

				self.setContent(self._content);				

				$(self.selector).empty();

				self.show();

				self.focus();

			} else if (self.options.contentType == "ajax") {	

				self.ajaxurl = self._content;	

				self.setLoading();				

				self.show();

				if (self.options.cache == false) {

					if (self.ajaxurl.indexOf('?') == -1) {

						self.ajaxurl += "?_t="+Math.random();

					} else {

						self.ajaxurl += "&_t="+Math.random();

					}

				}

				$.get(self.ajaxurl, function(data) {

					self._content = data;

					self.setContent(self._content);

					self.show();

					self.focus();

				});

			} else if (self.options.contentType == "iframe") { /*加入iframe使程序可以直接引用其它页面 by ePim*/

				self.setContent('<iframe src="'+self._content+'" width="100%" height="100%" frameborder="no"></iframe>');

				self.show();	

				self.focus();

			} else {

				self.setContent(self._content);	

				self.show();

				self.focus();

			}

		}

		//初始化弹窗事件

		this.initEvent = function() {

			self.dh.find(".dialog-close").unbind('click').click(function(){self.close()});			

			if (self.options.timeout>0) {

				window.setTimeout(self.close, (self.options.timeout * 1000));

			}		

		}

		//设置onOnclose事件

		this.setOnclose = function(fn) {

			self.options.onclose = fn;

		}

		

		//显示弹窗

		this.show = function() {

			if (self.options.showButton) {

				self.dh.find('.dialog-button').show();

			}

			if (self.options.position == 'center') {

				self.setCenterPosition();

			} else {

				self.setElementPosition();

			}

			if (typeof self.options.showAnimate == "string") {

				self.dh.show(self.options.animate);

			} else {

				self.dh.animate(self.options.showAnimate.animate, self.options.showAnimate.speed);

			}

			if (self.mh) {

				self.mh.show();

			}

		}

		this.hide = function(fn) {

			if (typeof self.options.hideAnimate == "string") {

				self.dh.hide(self.options.animate, fn);

			} else {

				self.dh.animate(self.options.hideAnimate.animate, self.options.hideAnimate.speed, "", fn);

			}

		}		

		//在弹窗内查找元素

		this.find = function(selector) {

			return self.dh.find(selector);

		}

		//设置加载加状态

		this.setLoading = function() {			

			self.setContent('<div class="dialog-loading"></div>');

			self.dh.find(".dialog-button").hide();

			if (self.dc.height()<90) {				

				self.dc.height(Math.max(90, self.options.height));

			}

			if (self.dh.width()<200) {

				self.dh.width(Math.max(200, self.options.width));

			}

		}

		this.setWidth = function(width) {

			self.dh.width(width);

		}

		//设置内容

		this.setContent = function(content) {

			self.dc.html(content);

			if (self.options.height>0) {

				self.dc.css('height', self.options.height);

			} else {

				self.dc.css('height','');

			}

			if (self.options.width>0) {

				self.dh.css('width', self.options.width);

			} else {

				self.dh.css('width','');

			}

			if (self.options.showButton) {

				self.dh.find(".dialog-button").show();

			}

		}

		//取得内容

		this.getContent = function() {

			return self.dh.html();

		}	

		//关闭弹窗

		this.close = function(n) {

			if (typeof(self.options.onclose) == "function") {

				self.options.onclose(self);

			}

			if (self.options.contentType == 'selector') {

				if (self.options.contentChange) {

					//if have checkbox do

					var cs = self.find(':checkbox');

					$(self.selector).html(self.getContent());						

					if (cs.length > 0) {

						$(self.selector).find(':checkbox').each(function(i){

							this.checked = cs[i].checked;

						});

					}

				} else {

					$(self.selector).html(self._content);

				}

			}

			//设置关闭后的焦点

			if (self.options.blur) {

				$(self.options.blur).focus();

			}

			//从数组中删除

			for(i=0;i<arrweebox.length;i++) {

				if (arrweebox[i].dh.get(0) == self.dh.get(0)) {

					arrweebox.splice(i, 1);

					break;

				}

			}

			self.hide();

			self.dh.remove();

			if (self.mh) {

				self.mh.remove();

			}

		}

		//将弹窗显示在中间位置

		this.setCenterPosition = function() {

			var wnd = $(window), doc = $(document),

				pTop = doc.scrollTop(),	pLeft = doc.scrollLeft();

			pTop += (wnd.height() - self.dh.height()) / 2;

			pLeft += (wnd.width() - self.dh.width()) / 2;

			self.dh.css({top: pTop, left: pLeft});

		}

		//根据元素设置弹窗显示位置

		this.setElementPosition = function() {

			var trigger = $(self.options.position.refele);

			var reftop = self.options.position.reftop || 0;

			var refleft = self.options.position.refleft || 0;

			var adjust = (typeof self.options.position.adjust=="undefined")?true:self.options.position.adjust;

			var top = trigger.offset().top + trigger.height();

			var left = trigger.offset().left;

			var docWidth = document.documentElement.clientWidth || document.body.clientWidth;

			var docHeight = document.documentElement.clientHeight|| document.body.clientHeight;

			var docTop = document.documentElement.scrollTop|| document.body.scrollTop;

			var docLeft = document.documentElement.scrollLeft|| document.body.scrollLeft;

			var docBottom = docTop + docHeight;

			var docRight = docLeft + docWidth;

			if (adjust && left + self.dh.width() > docRight) {

				left = docRight - self.dh.width() - 1;

			}

			if (adjust && top + self.dh.height() > docBottom) {

				top = docBottom - self.dh.height() - 1;

			}

			left = Math.max(left+refleft, 0);

			top = Math.max(top+reftop, 0);

			self.dh.css({top: top, left: left});

		}

		this.initOptions();

		this.initMask();

		this.initBox();		

		this.initContent();

		this.initEvent();

	}	

	

	var weefloats = function() {		

		var self = this;

		this._onbox = false;

		this._opening = false;

		this.zIndex = 999;

		this.length = function() {

			return arrweebox.length;

		}

		this.open = function(content, options) {

			self._opening = true;

			if (typeof(options) == "undefined") {

				options = {};

			}

			if (options.boxid) {

				for(var i=0; i<arrweebox.length; i++) {

					if (arrweebox[i].dh.attr('id') == options.boxid) {

						arrweebox[i].close();

						break;

					}

				}

			}

			options.zIndex = self.zIndex;

			self.zIndex += 10;

			var box = new weebox(content, options);

			box.dh.click(function(){self._onbox = true;});

			arrweebox.push(box);

			/*-----解决在ie下页面过大时出现部分阴影没有覆盖的问题-----by ePim*/

			if (box.options.position != "center"){

				box.setElementPosition();

			}

			if (box.mh) {

				box.mh.css({

					width: box.bwidth(),

					height: box.bheight()

				});

			}

			/*-----解决在ie下页面过大时出现部分没有遮罩的问题-----by ePim(WanJiDong@gmail.com)*/

			return box;

		}

		//关闭最上层窗体,程序调用方法：jQuery.weeboxs.close();

		this.close = function(){

			var closingBox = this.getTopBox();

			if(false!=closingBox) {

				closingBox.close();

			}

		}		

		$(window).scroll(function() {

			if (arrweebox.length > 0) {

				for(i=0;i<arrweebox.length;i++) {

					var box = arrweebox[i];//self.getTopBox();

					/*if (box.options.position == "center") {

						box.setCenterPosition();

					}*/

					if (box.options.position != "center"){

						box.setElementPosition();

					}

					if (box.mh) {

						box.mh.css({

							width: box.bwidth(),

							height: box.bheight()

						});

					}

				}

			}		

		}).resize(function() {

			if (arrweebox.length > 0) {

				var box = self.getTopBox();

				if (box.options.position == "center") {

					box.setCenterPosition();

				}

				if (box.mh) {

					box.mh.css({

						width: box.bwidth(),

						height: box.bheight()

					});

				}

			}

		});		

	}

	$.extend({weefloats: new weefloats()});		

})(jQuery);