本文實例講述了JS實現彈出浮動窗口。分享給大家供大家參考。具體如下:
這裡介紹的JS彈出浮動窗口,支持鼠標拖動和關閉,點擊鏈接文字後彈出層窗口,也稱作是彈出式對話框吧。
關於一些參數說明:
bodycontent:要在窗口中顯示的內容
title:窗口的標題
removeable:窗口是否能拖動
注意:內容窗體的高度是height-30px,請計算好要顯示的內容高度和寬度。
注:在火狐或chrome下效果最佳,IE8下可能有些小問題。
點擊此處查看運行效果:
http://demo.jb51.net/js/2015/js-float-window-mousemove-codes/
運行效果圖如下:
具體代碼:
<html> <head> <title>Js彈出浮動窗口,支持鼠標拖動和關閉</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script type="text/javascript"> /** 關於一些參數說明: *bodycontent:要在窗口顯示的內容,dom對象 *title:窗口標題,字符串類型 *removeable:窗口能否拖動,布爾類型 *注意:內容窗體的高度是height-30px,請計算好你要顯示的內容的高度和寬度。彈出窗的id為"223238909",所以你的頁面不要再取值為"223238909"的id了,以防js執行出錯*/ function createdialog(width,height,bodycontent,title,removeable){ if(document.getElementById("www_jb51_net")==null){ /*創建窗口的組成元素*/ var dialog = document.createElement("div"); var dialogtitlebar= document.createElement("div"); var dialogbody = document.createElement("div"); var dialogtitleimg = document.createElement("span"); var dialogtitle = document.createElement("span"); var dialogclose = document.createElement("span"); var closeaction = document.createElement("button"); /*為窗口設置一個id,id如此怪異是為了盡量避免與其他用戶取的id相同而出錯*/ dialog.id = "223238909"; /*組裝對話框標題欄,按從裡到外的順序組裝*/ dialogtitle.innerHTML = title; dialogtitlebar.appendChild(dialogtitleimg); dialogtitlebar.appendChild(dialogtitle); dialogtitlebar.appendChild(dialogclose); dialogclose.appendChild(closeaction); /*組裝對話框主體內容*/ if(bodycontent!=null){ bodycontent.style.display = "block"; dialogbody.appendChild(bodycontent); } /*組裝成完整的對話框*/ dialog.appendChild(dialogtitlebar); dialog.appendChild(dialogbody); /*設置窗口組成元素的樣式*/ var templeft,temptop,tempheight//窗口的位置(將窗口放在頁面中間的輔助變量) var dialogcssText,dialogbodycssText;//拼出dialog和dialogbody的樣式字符串 templeft = (document.body.clientWidth-width)/2; temptop = (document.body.clientHeight-height)/2; tempheight= height-30; dialogcssText= "position:absolute;background:#65c294;padding:1px;border:4px;top:"+temptop+"px;left:"+templeft+"px;height:"+height+"px;width:"+width+"px;"; dialogbodycssText = "width:100%;background:#ffffff;"+"height:" + tempheight + "px;"; dialog.style.cssText = dialogcssText; dialogtitlebar.style.cssText = "height:30px;width:100%;background:url(images/titlebar.png) repeat;cursor:move;"; dialogbody.style.cssText = dialogbodycssText; dialogtitleimg.style.cssText = "float:left;height:20px;width:20px;background:url(images/40.gif);"+"display:block;margin:4px;line-height:20px;"; dialogtitle.style.cssText = "font-size:16px;float:left;display:block;margin:4px;line-height:20px;"; dialogclose.style.cssText = "float:right;display:block;margin:4px;line-height:20px;"; closeaction.style.cssText = "height:20px;width:24px;border-width:1px;"+"background-image:url(images/close.png);cursor:pointer;"; /*為窗口元素注冊事件*/ var dialogleft = parseInt(dialog.style.left); var dialogtop = parseInt(dialog.style.top); var ismousedown = false;//標志鼠標是否按下 /*關閉按鈕的事件*/ closeaction.onclick = function(){ dialog.parentNode.removeChild(dialog); } /*實現窗口的移動,這段代碼很典型,網上很多類似的代碼*/ if(removeable == true){ var ismousedown = false; var dialogleft,dialogtop; var downX,downY; dialogleft = parseInt(dialog.style.left); dialogtop = parseInt(dialog.style.top); dialogtitlebar.onmousedown = function(e){ ismousedown = true; downX = e.clientX; downY = e.clientY; } document.onmousemove = function(e){ if(ismousedown){ dialog.style.top = e.clientY - downY + dialogtop + "px"; dialog.style.left = e.clientX - downX + dialogleft + "px"; } } /*松開鼠標時要重新計算當前窗口的位置*/ document.onmouseup = function(){ dialogleft = parseInt(dialog.style.left); dialogtop = parseInt(dialog.style.top); ismousedown = false; } } return dialog; }//end if(if的結束) } </script> <style> table{background:#b2d235;} button{font-size:12px;height:23;background:#ece9d8;border-width:1;} #linkurl,#linkname,#savelink{width:100px;} </style> </head> <body> <!-- 顯示窗口的地方 --> <div id="here"></div><a id="clickhere" href="#">點擊生成窗口</a> <!-- 要嵌入到窗口的內容 --> <div id="login" style="display:none;"> <form action="#" method="post" onSubmit="return false;"> <table width="400" height="95"> <tr> <td width="78">鏈接文字</td> <td width="168"><input name="link.name" type="text"/></td> <td width="138" id="linktext"></td> </tr> <tr> <td>鏈接地址</td> <td><input name="link.url" type="text"/></td> <td id="linkurl"></td> </tr> <tr> <td></td> <td><button type="submit" style="float:right;">添加</button></td> <td id="savelink"></td> </tr> </table> </form> </div> <script type="text/javascript"> var here = document.getElementById("here"); var login = document.getElementById("login"); var clickhere = document.getElementById("clickhere"); clickhere.onclick = function(){ here.appendChild(createdialog(400,95+30,login,"歡迎光臨",true)); } </script> </body> </html>
希望本文所述對大家的javascript程序設計有所幫助。