/**
 * dialog 1.0.0
 *
 * (c) 2011 愚人码头
 * http://www.css88.com/
 */

jquery.fn.dialog=function(option){
	var option = option || {};
	return this.each(function(){
		
	});
}
//dialog class
function dialog(element,options){
	this.tpagewidth=$("body").width();
	this.tpageheight=$(document).height();
	this.dialog=$(dialog.wrapper);
	jquery.data(this.dialog[0], 'dialog', this);
	this.visible = false;
    this.options = jquery.extend({}, dialog.defaults, options || {});
	var self = this;
	
	this.dialog.css({
		'display':'none',
		'width':self.options.width ? self.options.width : self.width
	}).appendto(document.body);
	this._setuptitlebar();
	
	this.setcontent(element || '<div>暂无内容...</div>');
	if (this.options.show) {
		this.show();
	}
}

$.extend(dialog,{
	wrapper:'<div class="dialog-box"><div class="dialog-popup"><div class="dialog-content"></div></div></div>',
	defaults: {
		width:"200px",          //宽度
        title: null,           // 标题.
        closeable: true,           // 是否显示关闭按钮
        show: true,           // 立即显示dialog?
        modal: false,          // 半透明遮罩背景
        modalopacity: 0.7,       //默认模态背景透明度
        closetext: '关闭窗口',      // 关闭窗口的提示文字
        closedelay: 0,           //自动关闭的延时时间，单位：毫秒
        dtopnum:false,          //弹框的top值，默认居中；
		closemodal:true          //关闭模式
    },
    //页面加载
    load:function(url,options){
        var options = options || {};
        //var loadhtml=;
        jquery.ajax({
            url:url,
            type:"get",
            datetype:"html",
            cache:false,
            success:function(html){
                html = jquery(html);
                new dialog(html, options);
            }
        });
    },
    //
    frame:function(frameid,url,options){
        var options = options || {};

        var framehtml=$("<iframe>",{
            'id': frameid,
            'src':url,
            'name':frameid,
            'frameborder':0,
            'scrolling':'no',
            'width':'100%',
            load:function(){
                var ifm= document.getelementbyid(frameid);
                var subweb = document.frames ? document.frames[frameid].document : ifm.contentdocument;
                if(ifm != null && subweb != null) {
                    ifm.height = subweb.body.scrollheight;
                }
            }
        });
        new dialog(framehtml, options);
    },
    get: function(ele) {
        return p = $(ele).parents('.dialog-box');
    },
    //提示框
	poptip:function(title,message,delay,options){
		var settings=$.extend({modal: false, closeable: true, title: title, closedelay: delay}, options || {});
		var html = $('<div></div>').append(message);
        new dialog(html, settings);
	},
    //询问框
	ask:function(question, answers, callback, options){
		options = $.extend({modal: true, closeable: false},options || {});
        var body =$("<div></div>").append($('<div class="question"></div>')).html(question);
        var map = {}, answerstrings = [];
        if (answers instanceof array) {
            for (var i = 0; i < answers.length; i++) {
                map[answers[i]] = answers[i];
                answerstrings.push(answers[i]);
            }
        } else {
            for (var k in answers) {
                map[answers[k]] = k;
                answerstrings.push(answers[k]);
            }
        }
        var buttons = $('<form class="answers"></form>');
        buttons.html(jquery.map(answerstrings, function(v) {
			//add by zhangxinxu http://www.zhangxinxu.com 给确认对话框的确认取消按钮添加不同的class
			var btn_index;
			if(v === "确定"){
				btn_index = 1;
			}else if(v === "取消"){
				btn_index = 2;
			}else{
				btn_index = 3;
			}
			//add end.  include the 'btn_index' below
            return "<input class='boxy-btn"+btn_index+"' type='button' value='" + v + "' />";
        }).join(' '));
        jquery('input[type=button]', buttons).click(function() {
            var clicked = this;
            dialog.get(this).hide();
            $(".boxy-modal-blackout").hide();
            if (callback) {
                callback(map[clicked.value]);
            }
        });
        body.append(buttons);
        new dialog(body, options);
	}
});
dialog.prototype={
	//显示
	show:function(){
		if (this.visible) return;
		var self = this;
		this._setupiframemask();
		this.dialog.stop().css({
			'top':self.getpositiontop().dtop,
			'left':self.getpositiontop().dleft
		}).stop().show();
		this.visible=true;
		if(this.options.closedelay>0){
			var closedialogtimer= settimeout(function(){
				self.hidedialog()
			},this.options.closedelay)
		}
	},
	
	//窗口尺寸
	getwinsize:function(){
		return {winw:$(window).width(),winh:$(window).height()};
	},
	//滚动条位置
	getwinscrollposition:function(){
		return {
			dscrolltop: $(window).scrolltop(),
			dscrollleft: $(window).scrollleft()
		};
	},
/*	gethidesize:function(){
		this.dialog.css({
			"visibility":"hidden",
			"display":"block"
		});
		var _hidesize=this.getsize();
		this.dialog.css({
			"visibility":"visible",
			"display":"none"
		});
		return _hidesize;
	},*/
	//dialog尺寸
	getsize:function(){
		return {dwidth:this.dialog.width(),dheight:this.dialog.height()}
	},
	//dialog位置
	getpositiontop:function(){
		return{
			dtop:this.options.dtopnum || math.floor((this.getwinsize().winh-this.getsize().dheight)/2)+this.getwinscrollposition().dscrolltop,
			dleft:math.floor((this.getwinsize().winw-this.getsize().dwidth)/2)+this.getwinscrollposition().dscrollleft
			} 
	},
	//获取dialog
	getdialog: function() {
        return $(".dialog-popup",this.dialog);
    },
    _setupiframemask:function(){
    	if (this.options.modal){
			if (!this.iframemask) {
				this.iframemask = $('<div class="boxy-modal-blackout"></div>').css({
                    opacity: this.options.modalopacity,
                    width: this.tpagewidth,
                    height: this.tpageheight
                }).appendto(document.body);
				if ($.browser.msie && parsefloat($.browser.version) < 7) {
					var iframemask = $("<iframe>", {
						'id': 'sodaomodaliframemask',
						'src': "javascript:\'\';",
						'class': 'dialog-iframe-mask'
					}).css({
						opacity: 0,
						width: '100%',
						height: this.tpageheight
					});
					$(this.iframemask).append(iframemask);
				}
			}else{
				$(this.iframemask).show()
			}
    	}else{
    		if($.browser.msie && parsefloat($.browser.version) < 7){
				var iframemask1=$("<iframe>",{
					'src':"javascript:\'\';",
					'class':'dialog-iframe-mask'
				}).css({opacity: 0, width: '100%',
				    height: this.getsize().dheight
				});
				this.dialog.append(iframemask1);
    		}
    	}
    	
    },
	//安装title条
	_setuptitlebar:function(){
		var self=this;
		 if (this.options.title || this.options.title == '') {
		 	var titleo=$("<div>",{
				'class':'dialog-title-bar',
				'html':'<h2>'+ this.options.title +'</h2>'
			});
			
			if(this.options.closeable){
				$("<a>",{
					'href':'#',
					'class':'close-dialog',
					'title':this.options.closetext,
					'html':'x',
					click:function(){
						self.hidedialog();
					}
				}).appendto(titleo);
			}
			this.getdialog().prepend(titleo);
			
		 }
	},
	//隐藏或移除dialog
	hidedialog:function(){
		if (this.iframemask){
			$(this.iframemask).hide();
		}
		if (this.options.closemodal) {
			this.dialog.stop().hide();
		}else{
			this.dialog.stop().remove();
		}
	},
	//设置dialog内容
	setcontent:function(contenthtml){
		$(".dialog-content",this.getdialog()).append(contenthtml);
	}
};