window.parent与window.opener的区别 javascript调用主窗口方法
1:? ?window.parent 是iframe页面调用父页面对象
举例:
a.html
1:? ?window.parent 是iframe页面调用父页面对象
举例:
a.html
- <html>??
- ????<head><title>父页面</title></head>??
- <body>??
- ????<form?name="form1"?id="form1">??
- ?????????<input?type="text"?name="username"?id="username"/>??
- ????</form>??
- ????<iframe?src="b.html"?width=100%></iframe>??
- </body>??
- </html>??
<html> <head><title>父页面</title></head> <body> <form name="form1" id="form1"> <input type="text" name="username" id="username"/> </form> <iframe src="b.html" width=100%></iframe> </body> </html>?
如果我们需要在b.htm中要对a.htm中的username文本框赋值,就如很多上传功能,上传功能页在Ifrmae中,上传成功后把上传后的路径放入父页面的文本框中
我们应该在b.html中写
- <script?type="text/javascript">??
- ????var?_parentWin?=?window.parent?; ??
- ????_parentWin.form1.username.value?=?"xxxx"?; ??
- </script>??
<script type="text/javascript"> var _parentWin = window.parent ; _parentWin.form1.username.value = "xxxx" ; </script>
实例地址:??http://www.cnspry.cn/blog/attachments/window.parent 实例/a.html
源码:
1.a.html
- <html>??
- <head>??
- ????<title>主页面</title>??
- ????<script>??
- ????????/**?为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量?*/ ??
- ????????var?parentVairous?=?"为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量"; ??
- ????????function?parentInvokeIFrame() ??
- ????????{ ??
- ????????????????var?iframeTest?=?document.frames["iframeTest"];?//使用document.getElementById("iframeTest");同样可以 ??
- ????????????????alert(iframeTest.document.body.innerHTML); ??
- ????????????????alert(iframeTest.iFrameVair); ??
- ????????} ??
- ????</script>??
- </head>??
- <body>??
- <form?name="form1"?id="form1">??
- ????<input?type="text"?name="username"?id="username"/>??
- ????<input?type?=?"button"?value?=?"父窗口调用IFrame子窗口中的内容"?onclick?=?'parentInvokeIFrame()'/>??
- </form>??
- <iframe?src="b.html"?width?=?'100%'?id?=?'iframeTest'></iframe>??
- </body>??
- </html>??
<html> <head> <title>主页面</title> <script> /** 为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量 */ var parentVairous = "为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量"; function parentInvokeIFrame() { var iframeTest = document.frames["iframeTest"]; //使用document.getElementById("iframeTest");同样可以 alert(iframeTest.document.body.innerHTML); alert(iframeTest.iFrameVair); } </script> </head> <body> <form name="form1" id="form1"> <input type="text" name="username" id="username"/> <input type = "button" value = "父窗口调用IFrame子窗口中的内容" onclick = 'parentInvokeIFrame()'/> </form> <iframe src="b.html" width = '100%' id = 'iframeTest'></iframe> </body> </html>
1.b.html
- <html>??
- ?????<head>??
- ?????????<title></title>??
- ?????????<script?type="text/javascript">??
- ????????????/**?为测试父窗体调用IFrame子窗体的全局函数而添加的子窗口全局函数?*/ ??
- ?????????var?iFrameVair?=?"测试父窗体调用IFrame子窗体的全局函数"; ??
- ????????? ??
- ?????????function?UpdateParent() ??
- ?????????{ ??
- ?????????????var?_parentWin?=?window.parent?; ??
- ?????????????_parentWin.form1.username.value?=?"xxxx"?; ??
- ?????????} ??
- ????????? ??
- ?????????function?childInvokeParent() ??
- ?????????{ ??
- ????????????????var?parentVairous?=?window.parent.window.parentVairous; ??
- ????????????????alert(parentVairous);??? ??
- ?????????} ??
- ???????</script>??
- ????</head>??
- <body>??
- ?????<form?name="form1"?id="form1">??
- ?????????<p>??</p>??
- ?????????<p?align="center">??
- ????????????<input?type?=?"button"? ??
- ???????????????????name?=?"button"? ??
- ???????????????????id?=?"button"? ??
- ???????????????????value?=?"更新主页面的UserName内容"? ??
- ???????????????????onclick?=?"UpdateParent()">??
- ????????????<input?type?=?"button"??
- ?????????????????????????name?=?"button2"??
- ?????????????????????????id?=?"button2"??
- ?????????????????????????value?=?"测试IFrame子窗口调用父窗口的全局变量"??
- ?????????????????????????onclick?=?"childInvokeParent();"/>??
- ?????????</p>??
- ?????????<p>??</p>??
- ?????</form>??
- </body>??
- </html>??
<html> <head> <title></title> <script type="text/javascript"> /** 为测试父窗体调用IFrame子窗体的全局函数而添加的子窗口全局函数 */ var iFrameVair = "测试父窗体调用IFrame子窗体的全局函数"; function UpdateParent() { var _parentWin = window.parent ; _parentWin.form1.username.value = "xxxx" ; } function childInvokeParent() { var parentVairous = window.parent.window.parentVairous; alert(parentVairous); } </script> </head> <body> <form name="form1" id="form1"> <p> </p> <p align="center"> <input type = "button" name = "button" id = "button" value = "更新主页面的UserName内容" onclick = "UpdateParent()"> <input type = "button" name = "button2" id = "button2" value = "测试IFrame子窗口调用父窗口的全局变量" onclick = "childInvokeParent();"/> </p> <p> </p> </form> </body> </html>?
ps:不能跨域获取,例如iframe的src是'http://www.xxx.ccc/'就不可以
执行iframe中的javascript方法
document.getElementById("iframeId").contentWindow.functionName();
?
?
2:? ?window.opener 是window.open 打开的子页面调用父页面对象
实例地址:??http://www.cnspry.cn/blog/attachments/window.opener 实例/a.html
源码:
2.a.html
- <html>??
- <head>??
- ?????<title>主页面</title>??
- ?????<script?type="text/javascript">??
- ?????/**?为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量?*/?? ??
- ?????var?parentVairous?=?"为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量";? ??
- ????? ??
- ?????/**? ??
- ??????*??因为不同于IFrame(IFrame有id,window.open()与IFrame的父子窗口的模式不同), ??
- ??????*??所以当是通过window.open()方法打开一个新窗口使,?必须有一个新窗口的对象? ??
- ??????*??当然必须先让子窗口弹出来,?才能调用子窗口中的变量,?否则抛出异常 ??
- ??????*/ ??
- ?????var?OpenWindow; ??
- ????? ??
- ?????function?openSubWin() ??
- ?????{ ??
- ?????????OpenWindow?=?window.open('b.html',?'newwindow',?'height=1024,?width=1300,?top=0,?left=0,?toolbar=no,?menubar=yes,?scrollbars=yes,resizable=yes,location=no,?status=no'); ??
- ?????} ??
- ?????function?parentInvokeChild()?? ??
- ?????{?? ??
- ?????????if(OpenWindow)//当然必须先让子窗口弹出来,?才能调用子窗口中的变量,?否则抛出异常????????? ??
- ?????????{ ??
- ???????????????alert(OpenWindow.iFrameVair); ??
- ?????????} ??
- ?????}? ??
- ?????</script>??
- </head>??
- <body>??
- ????<form?name="form1"?id="form1">??
- ????????<input?type="text"?name="username"?id="username"/>??
- ????????<input?type="button"?value="弹出子页面"?onclick?=?"openSubWin()">??
- ????????<input?type="button"?value="测试调用弹出窗口中的全局变量"?onclick?=?"parentInvokeChild()">??
- ????</form>??
- </body>??
- </html>??
<html> <head> <title>主页面</title> <script type="text/javascript"> /** 为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量 */ var parentVairous = "为测试IFrame子窗口调用父窗口的全局变量而添加的测试变量"; /** * 因为不同于IFrame(IFrame有id,window.open()与IFrame的父子窗口的模式不同), * 所以当是通过window.open()方法打开一个新窗口使, 必须有一个新窗口的对象 * 当然必须先让子窗口弹出来, 才能调用子窗口中的变量, 否则抛出异常 */ var OpenWindow; function openSubWin() { OpenWindow = window.open('b.html', 'newwindow', 'height=1024, width=1300, top=0, left=0, toolbar=no, menubar=yes, scrollbars=yes,resizable=yes,location=no, status=no'); } function parentInvokeChild() { if(OpenWindow)//当然必须先让子窗口弹出来, 才能调用子窗口中的变量, 否则抛出异常 { alert(OpenWindow.iFrameVair); } } </script> </head> <body> <form name="form1" id="form1"> <input type="text" name="username" id="username"/> <input type="button" value="弹出子页面" onclick = "openSubWin()"> <input type="button" value="测试调用弹出窗口中的全局变量" onclick = "parentInvokeChild()"> </form> </body> </html>
2.b.html
?
- <html>??
- ????<head>??
- ????????<title>子页面</title>??
- ????????<script?type="text/javascript">??
- ?????????/**?为测试父窗体调用IFrame子窗体的全局函数而添加的子窗口全局函数?*/?? ??
- ?????????var?iFrameVair?=?"测试父窗体调用IFrame子窗体的全局函数"; ??
- ?????????function?UpdateParent() ??
- ?????????{ ??
- ??????????????var?_parentWin?=?window.opener; ??
- ??????????????_parentWin.form1.username.value?=?"xxxx"?; ??
- ?????????} ??
- ?????????function?childInvokeParent()?? ??
- ?????????{?? ??
- ??????????????var?parentVairous?=?window.opener.window.parentVairous;?? ??
- ??????????????alert(parentVairous);????? ??
- ?????????} ??
- ????????</script>??
- ????</head>??
- <body>??
- <form?name="form1"?id="form1">??
- <p>??</p>??
- <p?align="center">??
- ????<input?type="button"? ??
- ???????????????onclick?=?"UpdateParent();"? ??
- ???????????????name="button"? ??
- ???????????????id="button"? ??
- ???????????????value="更新主页面的UserName内容">??
- ????<input?type?=?"button"?? ??
- ???????????name?=?"button2"?? ??
- ???????????id?=?"button2"?? ??
- ???????????value?=?"测试IFrame子窗口调用父窗口的全局变量"?? ??
- ???????????onclick?=?"childInvokeParent();"/>?? ??
- </p>??
- <p>??</p>??
- </form>??
- </body>??
<html> <head> <title>子页面</title> <script type="text/javascript"> /** 为测试父窗体调用IFrame子窗体的全局函数而添加的子窗口全局函数 */ var iFrameVair = "测试父窗体调用IFrame子窗体的全局函数"; function UpdateParent() { var _parentWin = window.opener; _parentWin.form1.username.value = "xxxx" ; } function childInvokeParent() { var parentVairous = window.opener.window.parentVairous; alert(parentVairous); } </script> </head> <body> <form name="form1" id="form1"> <p> </p> <p align="center"> <input type="button" onclick = "UpdateParent();" name="button" id="button" value="更新主页面的UserName内容"> <input type = "button" name = "button2" id = "button2" value = "测试IFrame子窗口调用父窗口的全局变量" onclick = "childInvokeParent();"/> </p> <p> </p> </form> </body>
经过hanjs的提醒,确实需要注意的是,模态窗口的子窗口是没有办法修改父窗口页面中的任何内容的。
例如修改:OpenWindow = window.open('b.html', 'newwindow', 'height=1024, width=1300, top=0, left=0, toolbar=no, menubar=yes, scrollbars=yes,resizable=yes,location=no, status=no');
为:OpenWindow = window.showModalDialog("b.html",'newwindow',"dialogHeight:100px,center:yes,resizable:no,status:no");
在子窗口中当希望修改父窗口中的内容时,会弹出“某某”为空或不是对象的错误,而这里的“某某”就是你想修改的父窗口中的内容
例如修改:OpenWindow = window.open('b.html', 'newwindow', 'height=1024, width=1300, top=0, left=0, toolbar=no, menubar=yes, scrollbars=yes,resizable=yes,location=no, status=no');
为:OpenWindow = window.showModalDialog("b.html",'newwindow',"dialogHeight:100px,center:yes,resizable:no,status:no");
在子窗口中当希望修改父窗口中的内容时,会弹出“某某”为空或不是对象的错误,而这里的“某某”就是你想修改的父窗口中的内容