


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);

The official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,

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