jquery encapsulates a simple and lightweight draggable and customizable pure div css imitation modal pop-up box with a mask layer_html/css_WEB-ITnose

最近封装上瘾，想起以前做的一个轻巧的弹出框，是样式和脚本分离的，于是重新封装了一下，把样式标签统一到js里了。里面还有一些问题，但不影响使用，有兴趣的同学，可以参考完善下，有好的建议，请不吝赐教。

var PopDialogDefaultConfig = {    hasCover: true,                             //是否带遮罩层    colorOfCover: "#000",                       //遮罩层颜色    transparencyOfCover: 80,                    //遮罩层透明度（alpha值,opacity值通过换算得到）    borderColor: "blue",                        //边框标题背景颜色    titleHeight: 50,                            //标题高度    titleFont: '24px "Microsoft Yahei"',        //标题字体    titleFontSize: 24,                          //标题文字大小    titleColor: "white",                        //标题文字颜色    titleFontFamily: "Microsoft Yahei",         //标题字体    contentWidth: 560,                          //内容框宽度    contentHeight: 480,                         //内容框的高度    borderWidth: 2,                             //边框宽度    backColor: "#EC90F6",                       //背景色    serial: 1,                                  //序列号    moveAble: true,                             //是否可以鼠标拖动    /*      * 配置文件合并      */    Merge: function (newConfig) {        var result = {};        for (var p in this) {            result[p] = this[p];            if (typeof (this[p]) != " function ") {                for (var q in newConfig) {                    if (p == q) {                        result[p] = newConfig[q];                    }                }            }        }        return result;    }};function PopDialog(content, title, obj, popDialogConfig) {    content = content || "这里什么都没有!";    title = title || "提示";    obj = obj || $(document.body);    var dialog = new Object;    /*      * 弹出框的默认样式     */    var config = PopDialogDefaultConfig.Merge(popDialogConfig);    /*      * 根据配置文件和弹出对象，取得弹出框的html串;     */    if (!obj.id) {        obj.id = "pop" + config.serial;        PopDialogDefaultConfig.serial++;    }    var opacity = (100 - config.transparencyOfCover) / 100;    var width = config.contentWidth + config.borderWidth * 2;    var height = config.contentHeight + config.borderWidth + config.titleHeight;    dialog.Html = '<div id="' + obj.id + '_Cover" style="background-color: ' + config.colorOfCover + ';width:100%;height:100%;position:absolute;filter: alpha(opacity=' + config.transparencyOfCover + ');opacity:' + opacity + ';top:0;left:0;"></div>'        + '<div id="' + obj.id + '_Dialog" style="background-color:' + config.borderColor + ';position:absolute;width: ' + width + 'px;height: ' + height + 'px;top:calc(50% - ' + height / 2 + 'px);left:calc(50% - ' + width / 2 + 'px);">'        + '    <div id="' + obj.id + '_Top" style="height:' + config.titleHeight + 'px;line-height:' + config.titleHeight + 'px;display:block;width:100%;background-color:' + config.borderColor + ';clear:both;vertical-align:middle">'        + '        <span id="' + obj.id + '_Title" style="display:inline-block;font-size:' + config.titleFontSize + 'px;padding-left:10px;color:' + config.titleColor + ';">' + (title || "提示") + '</span>'        + '        <a style="display:block;float:right;text-decoration: none;margin-right:20px;clear:right;color:white;font-size:' + config.titleHeight * 8 / 10 + 'px;" href="#" onclick="$(\'#' + obj.id + '_Dialog\').remove();$(\'#' + obj.id + '_Cover\').remove();">X</a>'        + '    </div>'        + '    <div id="' + obj.id + '_Body" style="background-color:' + config.backColor + ';width:' + config.contentWidth + 'px;height:' + config.contentHeight + 'px;border:' + config.borderWidth + 'px solid ' + config.borderColor + ';">'        + '        <div id="' + obj.id + '_Content" style="background-color:' + config.backColor + ';">' + content + '</div>'        + '    </div>'        + '</div>';    dialog.Config = config;    dialog.PopDom = $(dialog.Html);    dialog.x = dialog.x1 = dialog.y = dialog.y1 = dialog.mousekey = 0;    /*      * 鼠标拖动弹出框     */    if (config.moveAble) {        var top = dialog.PopDom.find("#" + obj.id + "_Top");        top.on("mousedown", function (event) {            dialog.mousekey = 1;            $(this).css("cursor", "move");            dialog.PopDom.find("#" + obj.id + "_Content").css("display", "none");        });        top.on("mouseup", function (event) {            dialog.mousekey = 0; $(this).css("cursor", "default");            dialog.PopDom.find("#" + obj.id + "_Content").css("display", "");        });        top.on("mouseout", function (event) {            dialog.mousekey = 0; $(this).css("cursor", "default");            dialog.PopDom.find("#" + obj.id + "_Content").css("display", "");        });        top.on("mousemove", function (event) {            if (dialog.mousekey == 1) {                if (dialog.x != 0 || dialog.y != 0) {                    dialog.x = event.pageX - dialog.x1;                    dialog.y = event.pageY - dialog.y1;                    var parent = $(this.parentElement);                    parent.css("left", (parent.position().left + dialog.x) + "px");                    parent.css("top", (parent.position().top + dialog.y) + "px");                    dialog.x = dialog.x1 = event.pageX;                    dialog.y = dialog.y1 = event.pageY;                } else {                    dialog.x = dialog.x1 = event.pageX;                    dialog.y = dialog.y1 = event.pageY;                }            } else {                dialog.x = dialog.x1 = dialog.y = dialog.y1 = 0;            }            return false;        });    }    return dialog;};/*  * 拓展jquery对象的方法; */(function ($) {    /*      * 关闭弹出框的方法     */    $.fn.ClosePopDialog = function () {        var obj = this;        while (obj) {            var popdialog = $("#" + this.id + "_Dialog");            if (popdialog) {                popdialog.remove();            }            var popcover = $("#" + this.id + "_Cover");            if (popcover) {                popcover.remove();            }            obj = obj.parent;        }    };    /*      * 根据url取得内容并弹出框显示的方法     * url: 需要显示的内容的url     * popDialogConfig： 自定义样式     * Example: $(document.body).PopDialog("/home/login", { backColor: "gray", borderColor: "blue", borderWidth: 2, contentWidth: 600, contentHeight: 480 });     */    $.fn.PopDialogByUrl = function (url, title, popDialogConfig) {        var obj = $(this);        obj.ClosePopDialog();        if (url) {            $.ajax({                url: url,                cache: false,                success: function (result) {                    if (result == "[]" || result == "") {                        result = "系统忙，请稍后再试！";                    }                    var pop = new PopDialog(result, title, this, popDialogConfig);                    obj.append(pop.PopDom);                },                error: function (result) {                    if (result == "[]" || result == "") {                        result = "系统错误，请联系管理员！";                    }                    var pop = new PopDialog(result, title, this, popDialogConfig);                    obj.append(pop.PopDom);                }            });        }    };    /*      * 弹出框显示提供的内容的方法     * content: 需要显示的内容     * popDialogConfig： 自定义样式     * Example: $(document.body).PopDialog("<div>这是一个弹出框的例子！</div>", { backColor: "gray", borderColor: "blue", borderWidth: 2, contentWidth: 600, contentHeight: 480 });     */    $.fn.PopDialogByContent = function (content, title, popDialogConfig) {        var obj = $(this);        obj.ClosePopDialog();        var pop = new PopDialog(content, title, this, popDialogConfig);        obj.append(pop.PopDom);    };})(jQuery);