Posted in Javascript onJanuary 17, 2010
下图是我的设计思路
下面是具体的js代码
1,首先定义几个自定义函数
代码
//判断是否为数组 function isArray(v) { return v && typeof v.length == 'number' && typeof v.splice == 'function'; } //创建元素 function createEle(tagName) { return document.createElement(tagName); } //在body中添加子元素 function appChild(eleName) { return document.body.appendChild(eleName); } //从body中移除子元素 function remChild(eleName) { return document.body.removeChild(eleName); }
2,具体的窗体实现代码
代码
//弹出窗口,标题(html形式)、html、宽度、高度、是否为模式对话框(true,false)、按钮(关闭按钮为默认,格式为['按钮1',fun1,'按钮2',fun2]数组形式,前面为按钮值,后面为按钮onclick事件) function showWindow(title,html,width,height,modal,buttons) { //避免窗体过小 if (width < 300) { width = 300; } if (height < 200) { height = 200; } //声明mask的宽度和高度(也即整个屏幕的宽度和高度) var w,h; //可见区域宽度和高度 var cw = document.body.clientWidth; var ch = document.body.clientHeight; //正文的宽度和高度 var sw = document.body.scrollWidth; var sh = document.body.scrollHeight; //可见区域顶部距离body顶部和左边距离 var st = document.body.scrollTop; var sl = document.body.scrollLeft; w = cw > sw ? cw:sw; h = ch > sh ? ch:sh; //避免窗体过大 if (width > w) { width = w; } if (height > h) { height = h; } //如果modal为true,即模式对话框的话,就要创建一透明的掩膜 if (modal) { var mask = createEle('div'); mask.style.cssText = "position:absolute;left:0;top:0px;background:#fff;filter:Alpha(Opacity=30);opacity:0.5;z-index:10000;width:" + w + "px;height:" + h + "px;"; appChild(mask); } //这是主窗体 var win = createEle('div'); win.style.cssText = "position:absolute;left:" + (sl + cw/2 - width/2) + "px;top:" + (st + ch/2 - height/2) + "px;background:#f0f0f0;z-index:10001;width:" + width + "px;height:" + height + "px;border:solid 2px #afccfe;"; //标题栏 var tBar = createEle('div'); //afccfe,dce8ff,2b2f79 tBar.style.cssText = "margin:0;width:" + width + "px;height:25px;background:url(top-bottom.png);cursor:move;"; //标题栏中的文字部分 var titleCon = createEle('div'); titleCon.style.cssText = "float:left;margin:3px;"; titleCon.innerHTML = title;//firefox不支持innerText,所以这里用innerHTML tBar.appendChild(titleCon); //标题栏中的“关闭按钮” var closeCon = createEle('div'); closeCon.style.cssText = "float:right;width:20px;margin:3px;cursor:pointer;";//cursor:hand在firefox中不可用 closeCon.innerHTML = "×"; tBar.appendChild(closeCon); win.appendChild(tBar); //窗体的内容部分,CSS中的overflow使得当内容大小超过此范围时,会出现滚动条 var htmlCon = createEle('div'); htmlCon.style.cssText = "text-align:center;width:" + width + "px;height:" + (height - 50) + "px;overflow:auto;"; htmlCon.innerHTML = html; win.appendChild(htmlCon); //窗体底部的按钮部分 var btnCon = createEle('div'); btnCon.style.cssText = "width:" + width + "px;height:25px;text-height:20px;background:url(top-bottom.png);text-align:center;padding-top:3px;"; //如果参数buttons为数组的话,就会创建自定义按钮 if (isArray(buttons)) { var length = buttons.length; if (length > 0) { if (length % 2 == 0) { for (var i = 0; i < length; i = i + 2) { //按钮数组 var btn = createEle('button'); btn.innerHTML = buttons[i];//firefox不支持value属性,所以这里用innerHTML // btn.value = buttons[i]; btn.onclick = buttons[i + 1]; btnCon.appendChild(btn); //用户填充按钮之间的空白 var nbsp = createEle('label'); nbsp.innerHTML = "  "; btnCon.appendChild(nbsp); } } } } //这是默认的关闭按钮 var btn = createEle('button'); // btn.setAttribute("value","关闭"); btn.innerHTML = '关闭'; // btn.value = '关闭'; btnCon.appendChild(btn); win.appendChild(btnCon); appChild(win); /*************************************以下为拖动窗体事件*********************/ //鼠标停留的X坐标 var mouseX = 0; //鼠标停留的Y坐标 var mouseY = 0; //窗体到body顶部的距离 var toTop = 0; //窗体到body左边的距离 var toLeft = 0; //判断窗体是否可以移动 var moveable = false; //标题栏的按下鼠标事件 tBar.onmousedown = function() { var eve = getEvent(); moveable = true; mouseX = eve.clientX; mouseY = eve.clientY; toTop = parseInt(win.style.top); toLeft = parseInt(win.style.left); //移动鼠标事件 tBar.onmousemove = function() { if(moveable) { var eve = getEvent(); var x = toLeft + eve.clientX - mouseX; var y = toTop + eve.clientY - mouseY; if (x > 0 && (x + width < w) && y > 0 && (y + height < h)) { win.style.left = x + "px"; win.style.top = y + "px"; } } } //放下鼠标事件,注意这里是document而不是tBar document.onmouseup = function() { moveable = false; } } //获取浏览器事件的方法,兼容ie和firefox function getEvent() { return window.event || arguments.callee.caller.arguments[0]; } //顶部的标题栏和底部的按钮栏中的“关闭按钮”的关闭事件 btn.onclick = closeCon.onclick = function() { remChild(win); remChild(mask); } }
实例调用
str = "看看我的窗体效果"; showWindow('我的提示框',str,850,250,true,['地区',fun1,'矿种',fun2]);
更为完整实用的代码,包括定义和调用
代码
<html> <head><title>自定义弹出对话框</title> <style type ="text/css" > .layout { width:2000px; height:400px; border:solid 1px red; text-align:center; } </style> <script type="text/javascript"> //判断是否为数组 function isArray(v) { return v && typeof v.length == 'number' && typeof v.splice == 'function'; } //创建元素 function createEle(tagName) { return document.createElement(tagName); } //在body中添加子元素 function appChild(eleName) { return document.body.appendChild(eleName); } //从body中移除子元素 function remChild(eleName) { return document.body.removeChild(eleName); } //弹出窗口,标题(html形式)、html、宽度、高度、是否为模式对话框(true,false)、按钮(关闭按钮为默认,格式为['按钮1',fun1,'按钮2',fun2]数组形式,前面为按钮值,后面为按钮onclick事件) function showWindow(title,html,width,height,modal,buttons) { //避免窗体过小 if (width < 300) { width = 300; } if (height < 200) { height = 200; } //声明mask的宽度和高度(也即整个屏幕的宽度和高度) var w,h; //可见区域宽度和高度 var cw = document.body.clientWidth; var ch = document.body.clientHeight; //正文的宽度和高度 var sw = document.body.scrollWidth; var sh = document.body.scrollHeight; //可见区域顶部距离body顶部和左边距离 var st = document.body.scrollTop; var sl = document.body.scrollLeft; w = cw > sw ? cw:sw; h = ch > sh ? ch:sh; //避免窗体过大 if (width > w) { width = w; } if (height > h) { height = h; } //如果modal为true,即模式对话框的话,就要创建一透明的掩膜 if (modal) { var mask = createEle('div'); mask.style.cssText = "position:absolute;left:0;top:0px;background:#fff;filter:Alpha(Opacity=30);opacity:0.5;z-index:100;width:" + w + "px;height:" + h + "px;"; appChild(mask); } //这是主窗体 var win = createEle('div'); win.style.cssText = "position:absolute;left:" + (sl + cw/2 - width/2) + "px;top:" + (st + ch/2 - height/2) + "px;background:#f0f0f0;z-index:101;width:" + width + "px;height:" + height + "px;border:solid 2px #afccfe;"; //标题栏 var tBar = createEle('div'); //afccfe,dce8ff,2b2f79 tBar.style.cssText = "margin:0;width:" + width + "px;height:25px;background:url(top-bottom.png);cursor:move;"; //标题栏中的文字部分 var titleCon = createEle('div'); titleCon.style.cssText = "float:left;margin:3px;"; titleCon.innerHTML = title;//firefox不支持innerText,所以这里用innerHTML tBar.appendChild(titleCon); //标题栏中的“关闭按钮” var closeCon = createEle('div'); closeCon.style.cssText = "float:right;width:20px;margin:3px;cursor:pointer;";//cursor:hand在firefox中不可用 closeCon.innerHTML = "×"; tBar.appendChild(closeCon); win.appendChild(tBar); //窗体的内容部分,CSS中的overflow使得当内容大小超过此范围时,会出现滚动条 var htmlCon = createEle('div'); htmlCon.style.cssText = "text-align:center;width:" + width + "px;height:" + (height - 50) + "px;overflow:auto;"; htmlCon.innerHTML = html; win.appendChild(htmlCon); //窗体底部的按钮部分 var btnCon = createEle('div'); btnCon.style.cssText = "width:" + width + "px;height:25px;text-height:20px;background:url(top-bottom.png);text-align:center;padding-top:3px;"; //如果参数buttons为数组的话,就会创建自定义按钮 if (isArray(buttons)) { var length = buttons.length; if (length > 0) { if (length % 2 == 0) { for (var i = 0; i < length; i = i + 2) { //按钮数组 var btn = createEle('button'); btn.innerHTML = buttons[i];//firefox不支持value属性,所以这里用innerHTML // btn.value = buttons[i]; btn.onclick = buttons[i + 1]; btnCon.appendChild(btn); //用户填充按钮之间的空白 var nbsp = createEle('label'); nbsp.innerHTML = "  "; btnCon.appendChild(nbsp); } } } } //这是默认的关闭按钮 var btn = createEle('button'); // btn.setAttribute("value","关闭"); btn.innerHTML = "关闭"; // btn.value = '关闭'; btnCon.appendChild(btn); win.appendChild(btnCon); appChild(win); /******************************************************以下为拖动窗体事件************************************************/ //鼠标停留的X坐标 var mouseX = 0; //鼠标停留的Y坐标 var mouseY = 0; //窗体到body顶部的距离 var toTop = 0; //窗体到body左边的距离 var toLeft = 0; //判断窗体是否可以移动 var moveable = false; //标题栏的按下鼠标事件 tBar.onmousedown = function() { var eve = getEvent(); moveable = true; mouseX = eve.clientX; mouseY = eve.clientY; toTop = parseInt(win.style.top); toLeft = parseInt(win.style.left); //移动鼠标事件 tBar.onmousemove = function() { if(moveable) { var eve = getEvent(); var x = toLeft + eve.clientX - mouseX; var y = toTop + eve.clientY - mouseY; if (x > 0 && (x + width < w) && y > 0 && (y + height < h)) { win.style.left = x + "px"; win.style.top = y + "px"; } } } //放下鼠标事件,注意这里是document而不是tBar document.onmouseup = function() { moveable = false; } } //获取浏览器事件的方法,兼容ie和firefox function getEvent() { return window.event || arguments.callee.caller.arguments[0]; } //顶部的标题栏和底部的按钮栏中的“关闭按钮”的关闭事件 btn.onclick = closeCon.onclick = function() { remChild(win); if (mask) { remChild(mask); } } } function addCheckbox(name,value,id,click) { var str = "<input type='checkbox' name='" + name + "' value='" + value + "' id='" + id + "' onclick='" + (click == null ? '':click) + "'/> <label for='" + id + "'>" + value + "</label>"; return str; } function show() { var str = "<div><div style='border:dotted 1px blue'><table cellspacing='2'>"; str += "<tr><td colspan='7' style='text-align:center'>请选择所在地区:" + addCheckbox('all','全(不)选','cities_all','selectAll(this,\"cities_cb\")') + "</td></tr>"; str += "<tr><td>" + addCheckbox('cities_cb','长沙市','cities_cb1') + "</td><td>" + addCheckbox('cities_cb','株洲市','cities_cb2') + "</td><td>" + addCheckbox('cities_cb','湘潭市','cities_cb3') + "</td><td>" + addCheckbox('cities_cb','衡阳市','cities_cb4') + "</td><td>" + addCheckbox('cities_cb','益阳市','cities_cb5') + "</td>"; str += "<td>" + addCheckbox('cities_cb','常德市','cities_cb6') + "</td><td>" + addCheckbox('cities_cb','岳阳市','cities_cb7') + "</td></tr>"; str += "<tr><td>" + addCheckbox('cities_cb','邵阳市','cities_cb8') + "</td><td>" + addCheckbox('cities_cb','郴州市','cities_cb9') + "</td><td>" + addCheckbox('cities_cb','娄底市','cities_cb10') + "</td>"; str += "<td>" + addCheckbox('cities_cb','永州市','cities_cb11') + "</td><td>" + addCheckbox('cities_cb','怀化市','cities_cb12') + "</td><td>" + addCheckbox('cities_cb','张家界市','cities_cb13') + "</td><td>" + addCheckbox('cities_cb','湘西自治州','cities_cb14') + "</td></tr>"; str += "</table></div><br/><div style='border:dotted 1px blue'><table cellspacing='2'>"; str += "<tr><td colspan='10' style='text-align:center'>请选择矿种:" + addCheckbox('all','全(不)选','class_all','selectAll(this,\"class_cb\")') + "</td></tr>"; str += "<tr><td>" + addCheckbox('class_cb','铋','class_cb1') + "</td><td>" + addCheckbox('class_cb','钒','class_cb2') + "</td><td>" + addCheckbox('class_cb','金','class_cb3') + "</td><td>" + addCheckbox('class_cb','煤','class_cb4') + "</td><td>" + addCheckbox('class_cb','锰','class_cb5') + "</td><td>" + addCheckbox('class_cb','钼','class_cb6') + "</td><td>" + addCheckbox('class_cb','铅','class_cb7') + "</td><td>" + addCheckbox('class_cb','石膏','class_cb8') + "</td><td>" + addCheckbox('class_cb','石煤','class_cb9') + "</td><td>" + addCheckbox('class_cb','锑','class_cb10') + "</td></tr>"; str += "<tr><td>" + addCheckbox('class_cb','铁','class_cb11') + "</td><td>" + addCheckbox('class_cb','铜','class_cb12') + "</td><td>" + addCheckbox('class_cb','钨','class_cb13') + "</td><td>" + addCheckbox('class_cb','锡','class_cb14') + "</td><td>" + addCheckbox('class_cb','锌','class_cb15') + "</td><td>" + addCheckbox('class_cb','银','class_cb16') + "</td><td>" + addCheckbox('class_cb','萤石','class_cb17') + "</td><td>" + addCheckbox('class_cb','铀','class_cb18') + "</td><td>" + addCheckbox('class_cb','稀土氧化物','class_cb19') + "</td><td>" + addCheckbox('class_cb','重晶石','class_cb20') + "</td></tr>"; str += "<tr><td>" + addCheckbox('class_cb','硼','class_cb21') + "</td><td>" + addCheckbox('class_cb','磷','class_cb22') + "</td><td>" + addCheckbox('class_cb','水泥灰岩','class_cb23') + "</td><td>" + addCheckbox('class_cb','熔剂灰岩','class_cb24') + "</td><td>" + addCheckbox('class_cb','冶金白云岩','class_cb25') + "</td><td>" + addCheckbox('class_cb','岩盐','class_cb26') + "</td><td>" + addCheckbox('class_cb','芒硝','class_cb27') + "</td><td>" + addCheckbox('class_cb','钙芒硝','class_cb28') + "</td><td>" + addCheckbox('class_cb','地下水','class_cb29') + "</td><td>" + addCheckbox('class_cb','地下热水','class_cb30') + "</td></tr>"; str += "</table></div></div>"; showWindow('我的提示框',str,850,250,true,['地区',fun1,'矿种',fun2]); } function selectAll(obj,oName) { var checkboxs = document.getElementsByName(oName); for(var i=0;i<checkboxs.length;i++) { checkboxs[i].checked = obj.checked; } } function getStr(cbName) { var cbox = document.getElementsByName(cbName); var str = ""; for (var i=0;i<cbox.length;i++) { if(cbox[i].checked) { str += "," + cbox[i].value; } } str = str.substr(1); return str; } function fun1() { var str = getStr('cities_cb'); alert('你选择的地区为:' + str); } function fun2() { var str = getStr('class_cb'); alert('你选择的矿种为:' + str); } </script> </head> <body> <div class ="layout"></div> <div class ="layout"></div> <div class ="layout"> <input type="button" value="显示" onclick="show()" /> </div> </body> </html>
此脚本在ie,firefox浏览器下运行通过。。。。
JavaScript写的一个自定义弹出式对话框代码
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